WO2013065632A1 - Compressor - Google Patents

Compressor Download PDF

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Publication number
WO2013065632A1
WO2013065632A1 PCT/JP2012/077864 JP2012077864W WO2013065632A1 WO 2013065632 A1 WO2013065632 A1 WO 2013065632A1 JP 2012077864 W JP2012077864 W JP 2012077864W WO 2013065632 A1 WO2013065632 A1 WO 2013065632A1
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WO
WIPO (PCT)
Prior art keywords
passage
chamber
partition wall
discharge
discharge chamber
Prior art date
Application number
PCT/JP2012/077864
Other languages
French (fr)
Japanese (ja)
Inventor
石川　勉
榎本　安里
田口　幸彦
Original Assignee
サンデン株式会社
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Publication date
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Publication of WO2013065632A1 publication Critical patent/WO2013065632A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1081—Casings, housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/109—Lubrication

Definitions

  • the present invention relates to a compressor used in a vehicle air conditioner system and the like, and more particularly, to an arrangement structure of an oil separation portion disposed in a path for discharging a working fluid (coolant).
  • a suction chamber (13, 20) is arranged in a central region of a cylinder head (housings 5, 6), and the diameter of the suction chamber (13, 20).
  • Discharge chambers (17, 25) arranged in an annular shape so as to surround the outer side in the direction are formed.
  • an oil separation mechanism (18, 37), an oil storage chamber (storage chamber 14, 21), and an oil return passage (ring oil holes 15d, 22d) are formed in the cylinder head (housing 5, 6).
  • the oil separation mechanism (18, 37) is provided in the discharge chamber (17, 25) near the communication port (3a, 4a) where the discharge passage (35a, 35b) opens. Thus, no consideration is given to disposing the oil separation mechanism away from the position where the discharge passage opens in the discharge chamber.
  • the cylinder head may be provided with a connection port for connecting to an external refrigerant circuit, and an attachment part for bolting the compressor on the engine side.
  • a variable capacity compressor is also provided with a control valve and a check valve. In many cases, it is difficult to dispose the oil separation mechanism and the oil storage chamber in the cylinder head.
  • the present invention has been made by paying attention to such a conventional problem. Even when the oil separation mechanism is arranged, the oil separation mechanism can be easily formed while maintaining the compactness of the compressor, and the degree of freedom in arrangement can be reduced. An object is to provide an improved compressor.
  • the compressor according to the present invention is A suction chamber disposed in a central portion; a discharge chamber disposed in an annular shape surrounding a radially outer side of the suction chamber; a suction passage for introducing refrigerant sucked from an external refrigerant circuit into the suction chamber; and the discharge A discharge passage for sending the refrigerant discharged to the chamber to an external refrigerant circuit; an oil separation chamber arranged in the middle of the discharge passage for separating oil from the refrigerant; and oil separated in communication with the oil separation chamber.
  • a housing in which an oil storage chamber and an oil return passage for returning the oil in the oil storage chamber to the low pressure source side are formed;
  • a drive shaft rotatably supported at the center of the housing;
  • a compression mechanism that compresses the refrigerant sucked from the suction chamber by the rotation of the drive shaft and discharges the refrigerant to the discharge chamber, and is further configured as follows.
  • the discharge passage includes a first passage partitioned from the discharge chamber in an arcuate upper region of the discharge chamber arranged in an annular shape, a second passage communicating the first passage and the discharge chamber, A third passage communicating the first passage and the external refrigerant circuit, A partition member for partitioning the upper region into spaces on both sides in the axial direction of the drive shaft is disposed in the arc-shaped upper region of the discharge chamber, and both ends in the arc direction of the partitioned space are first partitions.
  • the arcuate intermediate portion of the first passage is partitioned by a third partition wall so that a refrigerant flow path having a predetermined opening area is formed,
  • An upstream passage portion between the first partition wall and the third partition wall of the first passage is communicated with the discharge chamber by the second passage to function as an oil separation chamber;
  • As a connection passage connecting the oil separation chamber and the third passage by connecting a downstream passage portion between the second partition wall and the third partition wall of the first passage to the third passage. Made it work.
  • the partition member and each partition wall can easily form the oil separation chamber and the connection passage in the region of the discharge chamber, and the connection passage can easily connect the oil separation chamber to the third passage.
  • the degree of freedom is improved. Further, by forming the oil separation chamber and the connection passage, the size of the compressor does not increase.
  • Sectional drawing of the compressor in an embodiment The figure of the open end side of the cylinder head in an embodiment AA sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. Perspective view of partition member
  • the top view which shows another form of a division member
  • FIG. 1 is a cross-sectional view of a compressor (particularly a variable capacity compressor) in the embodiment
  • FIG. 2 is a view of an open end side of the cylinder head in the embodiment
  • FIG. 3 is a cross-sectional view along AA in FIG. 2 is a sectional view taken along the line BB in FIG. 2
  • FIG. 5 is a sectional view taken along the line CC in FIG. 2
  • FIG. 6 is a perspective view of the partition member.
  • the variable capacity compressor 100 includes a cylinder block 101 having a plurality of cylinder bores 101a, a front housing 102 provided at one end of the cylinder block 101, and a cylinder provided at the other end of the cylinder block 101 via a valve plate 103. And a head 104.
  • a drive shaft 110 is provided across the crank chamber 140 defined by the cylinder block 101 and the front housing 102, and a swash plate 111 is disposed around the center thereof.
  • the swash plate 111 is connected to a rotor 112 fixed to the drive shaft 110 via a link mechanism 120, and the inclination angle can be changed along the drive shaft 110.
  • the link mechanism 120 includes a first arm 112 a projecting from the rotor 112, a second arm 111 a projecting from the swash plate 111, and one end side rotating with respect to the first arm 112 a via the first connecting pin 122.
  • the link arm 121 is movably connected and the other end is rotatably connected to the second arm 111 a via a second connection pin 123.
  • the through hole 111b of the swash plate 111 is formed so that the swash plate 111 can tilt within the range of the maximum inclination angle ( ⁇ max) and the minimum inclination angle ( ⁇ min).
  • the through hole 111b contacts the drive shaft 110.
  • a maximum inclination restriction part and a minimum inclination restriction part are formed.
  • an inclination reduction spring 114 that urges the swash plate 111 toward the minimum inclination angle to reach the minimum inclination angle is mounted, and between the swash plate 111 and the spring support member 116.
  • An inclination increasing spring 115 is attached to urge the swash plate 111 in an increasing direction. Since the urging force of the inclination increasing spring 115 is set to be larger than the urging force of the inclination decreasing spring 114 at the minimum inclination angle, the swash plate 111 has the inclination decreasing spring 114 and the inclination increasing spring 115 when the drive shaft 110 is not rotating. It is located at an inclination angle that balances the urging force.
  • One end of the drive shaft 110 extends to the outside through the boss portion 102a protruding to the outside of the front housing 102, and is connected to a power transmission device (not shown).
  • a shaft seal device 130 is inserted between the drive shaft 110 and the boss portion 102a to shut off the inside and the outside.
  • the drive shaft 110 and the rotor 112 are supported by bearings 131 and 132 in the radial direction, and supported by a bearing 133 and a thrust plate 134 in the thrust direction.
  • the clearance between the contact portion of the thrust plate 134 of the drive shaft 110 and the thrust plate 134 is adjusted to a predetermined clearance by an adjustment screw 135. Therefore, the power from the external drive source is transmitted to the power transmission device, and the drive shaft 110 can rotate in synchronization with the power transmission device.
  • a piston 136 is disposed in the cylinder bore 101a, and an outer peripheral portion of the swash plate 111 is accommodated in an inner space of an end portion of the piston 136 that protrudes toward the crank chamber 140.
  • the swash plate 111 includes a pair of shoes 137.
  • the piston 136 is linked. Therefore, the piston 136 can reciprocate in the cylinder bore 101a by the rotation of the swash plate 111.
  • a suction chamber 141 defined by an annular partition 104a and a discharge chamber 142 defined by the partition 104a and the outer peripheral wall 104b and surrounding the suction chamber 141 in an annular shape are formed at the center (see FIG. 2).
  • the suction chamber 141 communicates with the cylinder bore 101a through a communication hole 103a provided in the valve plate 103 and a suction valve (not shown) formed in the suction valve forming plate
  • the discharge chamber 142 communicates with the cylinder bore 101a.
  • a discharge valve not shown
  • the front housing 102, the cylinder block 101, the suction valve forming plate, the valve plate 103, the discharge valve forming plate, and the cylinder head 104 are fastened and compressed by a plurality of through bolts 105 via a center gasket, cylinder gasket, and head gasket (not shown).
  • a machine housing is formed.
  • the cylinder head 104 is formed with a suction port 104c connected to the suction side external refrigerant circuit, and a suction passage 104d connecting the suction port 104c and the suction chamber 141, whereby the suction chamber 141 is connected to the suction side refrigerant circuit of the air conditioner system. It is connected.
  • the suction passage 104 d extends linearly from the outside in the radial direction of the cylinder head 104 so as to cross a part of the discharge chamber 142.
  • the discharge chamber 142 is connected to a discharge-side external refrigerant circuit of the air conditioner system via a discharge passage 104f (104f1, 104f2, 104f3) and a discharge port 104e, which will be described later.
  • the cylinder head 104 is further provided with a control valve 300.
  • the control valve 300 adjusts the opening of the communication passage 145 that connects the discharge chamber 142 and the crank chamber 140 to control the amount of discharge gas introduced into the crank chamber 140.
  • the refrigerant in the crank chamber 140 flows to the suction chamber 141 via the communication passage 101 c, the space 146, and the orifice 103 c formed in the valve plate 103.
  • variable capacity compressor 100 can be variably controlled by changing the pressure of the crank chamber 140 by the control valve 300 and changing the inclination angle of the swash plate 111, that is, the stroke of the piston 136.
  • the control valve 300 can optimally control the suction pressure according to the external environment.
  • FIGS. 2 to 6 the configuration of the discharge passage and the oil separation chamber will be described with reference to FIGS. 2 to 6 in addition to FIG.
  • a discharge port 104e connected to the discharge-side external refrigerant circuit
  • a discharge passage 104f (104f1, 104f2, 104f3) connecting the discharge port 104e and the discharge chamber 142.
  • the chamber 142 is connected to a discharge side refrigerant circuit of the air conditioner system.
  • the upper part (or lower part) said here is based on the state by which the compressor is mounted
  • the discharge passage 104f includes a first passage 104f1 partitioned from the discharge chamber 142 by a partition member 150 in an upper region of the discharge chamber 142, a second passage 104f2 communicating the first passage 104f1 and the discharge chamber 142, and a first passage. It is comprised from the 3rd channel
  • the first passage 104f1 is partitioned at both ends by a first partition wall 104h and a second partition wall 104i extending from the bottom wall 104g of the cylinder head 104 (projecting inward), and a peripheral wall (outer periphery) on the radially outer side of the discharge chamber.
  • Wall 104b side), the peripheral wall (in the partition wall 104a side) on the radially inner side of the discharge chamber, the opening defined by the first partition wall 104h and the second partition wall 104i is covered with the partition member 150 and partitioned from the discharge chamber 142. Yes.
  • a partition member 150 that partitions the upper region into spaces on both sides in the axial direction of the drive shaft 110 is disposed in the arc-shaped upper region of the discharge chamber 142, and the arc direction of the partitioned one space
  • a first passage 104f1 partitioned from the other discharge chamber side space is formed.
  • a third partition wall 104j extends from the bottom wall 104g of the cylinder head 104 between the first partition wall 104h and the second partition wall 104i, and a predetermined distance is provided between the top of the third partition wall 104j and the partition member 150.
  • the top height of the third partition wall 104j is set so as to form a flow path having an opening area (see FIG. 3). Therefore, the first passage 104f1 is partitioned into a space 104f1a partitioned by the first partition wall 104h and the third partition wall 104j, and a space 104f1b partitioned by the third partition wall 104j and the second partition wall 104i.
  • the partition member 150 includes a flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and a plurality of side plates 150b that rise from the periphery of the flat plate 150a, and has an arc shape that matches the annular shape of the discharge chamber 142. Are fitted in the discharge chamber 142 (see FIG. 6).
  • the partition member 150 is made of, for example, a polyamide-based or polyphenylene sulfide-based resin material.
  • the partition member 150 is prevented from coming off when the valve plate 103 side is joined to the cylinder head 104 (directly, the end of the side plate 150b is kept from coming into contact with the head gasket).
  • the cylinder head 104 is formed with a positioning surface 104k for positioning the flat plate 150a by contacting the flat plate 150a.
  • the side plate 150b The height of the end is set at substantially the same position as the open end surface of the cylinder head 104 (see FIG. 4).
  • the substantially the same position includes a case where it is slightly lower and a case where it is slightly higher than the open end surface of the cylinder head 104.
  • the end of the side plate 150b is set to a height slightly lower than the open end surface of the cylinder head 104, and when the deformation of the side plate 150b is allowed, the end of the side plate 150b is set. Allows a position slightly higher than the open end face of the cylinder head 104.
  • the partition member 150 When the deformation of the side plate 150b is allowed, if the end of the side plate 150b is set to a position slightly higher than the open end surface of the cylinder head 104, the partition member 150 is pressed against the positioning surface 104k when the housing is fastened. It is sandwiched between the cylinder head 104 and the valve plate 103, and the partition member 150 can be securely held in the cylinder head 104 (the end of the side plate 150b directly contacts the head gasket). Further, the side plate 150b may be formed so as to press the radially outer peripheral wall (the outer peripheral wall 104b side) of the discharge chamber 142 and the radially inner peripheral wall (the partition wall 104a side) of the discharge chamber 142. Even if it does in this way, the division member 150 does not rattle and is reliably hold
  • the second passage 104f2 is formed between the peripheral wall (on the outer peripheral wall 104b side) of the discharge chamber 142 in the vicinity of the third partition wall 104j and the peripheral edge of the flat plate 150a. It is formed between the discharge chamber 142 and the space 104f1a of the first passage 104f1 (see FIG. 2).
  • the third passage 104f3 communicates with the discharge-side external refrigerant circuit connected to the space 104f1b of the first passage 104f1 and the discharge port 104e (see FIG. 4).
  • a space 104f1a defined by the first partition wall 104h and the third partition wall 104j communicates with the oil storage chamber 104n via the communication hole 104m (see FIG. 5).
  • the oil storage chamber 104n forms a cylindrical space, extends from the lower portion of the first partition wall 104h toward the lower side of the cylinder head 104, and is sealed by a sealing member 160 from the radially outer side of the cylinder head 104. .
  • the lower region of the oil storage chamber 104n communicates with the suction chamber 141 through the oil return passage 104p.
  • a throttle (not shown) is disposed in the oil return passage 104p.
  • the communication hole 104m passes through the first partition wall 104h and opens at one end to the space 104f1a, and the opening end is located in the vicinity of the flat plate 150a of the partition member 150.
  • the first partition wall 104h is disposed below the third partition wall 104i, and the second passage 104f2 is in the vicinity of the third partition wall 104j along the peripheral wall (outer peripheral wall 104b side) on the radially outer side of the discharge chamber 142. Is formed.
  • the refrigerant that has flowed into the space 104f1a from the discharge chamber 142 through the second passage 104f2 flows toward the bottom wall 104g of the cylinder head 104 along the outer peripheral wall 104b side, and then flows from the bottom wall 104g to the first partition.
  • a flow toward the flat plate 150a is generated along the wall 104h.
  • the space 104f1a is an oil separation chamber
  • the space 104f1b is a connection passage that connects the oil separation chamber and the third passage 104f3.
  • the first passage 104f1 includes the oil separation chamber (space 104f1a) and the connection passage (space 104f1b) connecting the oil separation chamber and the third passage 104f3. Even if the oil separation chamber is spaced apart, the oil separation chamber can be easily connected to the third passage 104f3 by changing the position of the second partition wall 104i to expand the space 104f1b.
  • the oil separation chamber can be It can arrange
  • the oil separation chamber and the connection passage can be easily formed by a partition wall extending from the bottom wall of the cylinder head 104 and a partition member 150 fitted to the discharge chamber 142, and further in an area in the discharge chamber 142. Since it is formed, the physique of the compressor 100 is not increased.
  • the first partition wall 104h is disposed below the third partition wall 104j, and the communication path (communication hole 104m) that communicates between the oil separation chamber (space 104f1a) and the oil storage chamber 104n. Is opened in or near the first partition wall 104h, and the second passage 104f2 is opened in the vicinity of the third partition wall 104j, thereby moving the second passage 104f2 away from the opening end of the communication passage (communication hole 104m).
  • the second passage 104f2 is formed between the radially outer peripheral wall 104b of the discharge chamber 142 and the peripheral edge of the partition member 150, the second passage 104f2 can be easily formed. Further, since the refrigerant in the discharge chamber 142 flows into the oil separation chamber (space 104f1a) along the outer peripheral wall 104b of the discharge chamber 142, the refrigerant is directed from the outer peripheral wall 104b to the opening end communicating with the oil storage chamber 104n via the bottom wall. Thus, oil separation is effectively performed in the oil separation chamber (space 104f1a).
  • the partition member 150 includes the flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and the plurality of side plates 150b that rise from the peripheral edge of the flat plate 150a, and the discharge chamber 142 has an annular shape.
  • the flat plate 150a is positioned in the cylinder head 104 by partitioning the first passage 140f1 and the discharge chamber 142, the end portion of the side plate is formed. Since the height is set so as to be substantially the same position as the open end surface of the cylinder head 104, a member for fixing the partition member 150 to the cylinder head 104 becomes unnecessary, and an increase in cost can be suppressed.
  • the partition member 150 is formed of a resin material, and when the partition member 150 is fitted into the discharge chamber 142, the side plate is disposed on the radially outer peripheral wall 104 b and the radially inner side of the discharge chamber 142. By being formed so as to press the peripheral wall 104a, the partition member 150 does not rattle and is held by the cylinder head 104.
  • the partition member 150 is formed of a resin material, and when the housing (cylinder head 104, cylinder block 101, front housing 102) is fastened, the partition member 150 includes the cylinder head 104 and the valve plate 103. , The partition member 150 is pressed against the positioning portion in the cylinder head 104, so that the partition member 150 can be securely held in the cylinder head without rattling.
  • the partition member may be fixed to the cylinder head by a fixing member such as a screw.
  • the first partition wall 200a and the second partition wall 200b can be formed by bending both end portions of the partition member 200 toward the bottom wall 104g side of the cylinder head 104.
  • the portion can be engaged with a groove formed in the bottom wall 104g of the cylinder head 104 to prevent it from coming off.
  • the third partition wall 200 c can be formed by bending an intermediate portion of the partition member 200.
  • the partition member is not limited to the resin material, and may be formed of other materials such as a metal plate.
  • variable capacity compressor may be sufficient and this invention is applicable to the whole compressor.
  • Variable capacity compressor 101 Cylinder block 101a Cylinder bore 102 Front housing 103 Valve plate 104 Cylinder head 104a Partition wall 104b Outer wall 104c Suction port 104d Suction passage 104e Discharge port 104f Discharge passage 104f1 First passage 104f2 Second passage 104f1a Space (oil separation chamber) ) 104f1b space (connection passage) 104f3 Third passage 104g Cylinder head bottom wall 104h First partition wall 104i Second partition wall 104j Third partition wall 110 Drive shaft 111 Swash plate 112 Rotor 120 Link mechanism 136 Piston 140 Crank chamber 141 Suction chamber 142 Discharge chamber 150 Partition member 150a Flat plate 150b Side plate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The objective of the present invention is to improve the degree of freedom with respect to the arrangement of an oil separation unit without increasing the physical size of a variable capacitor compressor. Within an arc-shaped upper region of a discharge chamber (142), the two ends (in the direction of the arc) of one space that is defined by a partition member (150) are defined by a first partition wall (104h) and a second partition wall (104i), and a first passage (104f1) is formed partitioned from the other, discharge-chamber-side space. In addition, the central part (in the direction of the arc) of the first passage (104f1) is partitioned by a third partition wall (104j) so as to form a refrigerant flow path having a prescribed opening area. The upstream-side passage part of the first passage (104f1) between the first partition wall (104h) and the third partition wall (104j) communicates with the discharge chamber (142) by means of a second passage (104f2) and functions as an oil separation chamber, and the downstream-side passage part between the second partition wall (104i) and the third partition wall (104j) functions as a connecting passage that communicates with a third passage (104f3), thereby connecting the oil separation chamber and the third passage.

Description

圧縮機Compressor
　本発明は、車両用エアコンシステムなどに使用される圧縮機に関し、特に、作動流体（冷媒）を吐出する通路の途上に配設されるオイル分離部の配置構造に関する。 The present invention relates to a compressor used in a vehicle air conditioner system and the like, and more particularly, to an arrangement structure of an oil separation portion disposed in a path for discharging a working fluid (coolant).
　この種の圧縮機として、特許文献１に開示される圧縮機では、シリンダヘッド（ハウジング５、６）の中央領域に吸入室（１３、２０）が配置され、吸入室（１３、２０）の径方向外側を取り囲むように環状に配置された吐出室（１７、２５）が形成されている。 As a compressor of this type, in the compressor disclosed in Patent Document 1, a suction chamber (13, 20) is arranged in a central region of a cylinder head (housings 5, 6), and the diameter of the suction chamber (13, 20). Discharge chambers (17, 25) arranged in an annular shape so as to surround the outer side in the direction are formed.
　また、シリンダヘッド（ハウジング５、６）内にオイル分離機構（１８、３７）、貯油室（貯留室１４、２１）、オイル戻し通路（環油孔１５ｄ、２２ｄ）が形成されている。 Also, an oil separation mechanism (18, 37), an oil storage chamber (storage chamber 14, 21), and an oil return passage (ring oil holes 15d, 22d) are formed in the cylinder head (housing 5, 6).
日本国特許公報：特開平７－３３２２３９号Japanese Patent Gazette: JP-A-7-332239
　上記圧縮機では、オイル分離機構（１８、３７）は吐出室（１７、２５）内で吐出通路（３５ａ、３５ｂ）が開口する連通口（３ａ、４ａ）付近に配設されることを前提としており、吐出室内で吐出通路が開口する位置に対してオイル分離機構の位置を離して配置することは何ら考慮されていない。 In the above compressor, the oil separation mechanism (18, 37) is provided in the discharge chamber (17, 25) near the communication port (3a, 4a) where the discharge passage (35a, 35b) opens. Thus, no consideration is given to disposing the oil separation mechanism away from the position where the discharge passage opens in the discharge chamber.
　シリンダヘッドには外部冷媒回路と接続する接続ポートや、エンジン側に圧縮機をボルト固定するための取付部が配置される場合があり、さらに可変容量圧縮機では制御弁や逆止弁も配置される場合が多く、オイル分離機構や貯油室をシリンダヘッドに配置することが困難となっている。 The cylinder head may be provided with a connection port for connecting to an external refrigerant circuit, and an attachment part for bolting the compressor on the engine side. In addition, a variable capacity compressor is also provided with a control valve and a check valve. In many cases, it is difficult to dispose the oil separation mechanism and the oil storage chamber in the cylinder head.
　本発明は、このような従来の課題に着目してなされたもので、オイル分離機構を配置しても圧縮機のコンパクト性を維持しつつ、オイル分離機構の形成が容易で配置の自由度を向上させた圧縮機を提供することを目的とする。 The present invention has been made by paying attention to such a conventional problem. Even when the oil separation mechanism is arranged, the oil separation mechanism can be easily formed while maintaining the compactness of the compressor, and the degree of freedom in arrangement can be reduced. An object is to provide an improved compressor.
　本発明に係る圧縮機は、
　中央部に配置された吸入室と、該吸入室の径方向外側を取り囲んで環状に配置された吐出室と、外部冷媒回路から吸入された冷媒を前記吸入室に導入する吸入通路と、前記吐出室に吐出された冷媒を外部冷媒回路に送出する吐出通路と、前記吐出通路の途上に配置され冷媒からオイルを分離するオイル分離室と、該オイル分離室に連通し分離されたオイルを貯留する貯油室と、該貯油室内のオイルを低圧源側に戻すオイル戻し通路と、が形成されたハウジングと、
　前記ハウジングの中心部に回転可能に支持された駆動軸と、
　前記駆動軸の回転によって前記吸入室から吸入した冷媒を圧縮して前記吐出室へ吐出する圧縮機構と、を備え、さらに、以下のように構成したことを特徴とする。 The compressor according to the present invention is
A suction chamber disposed in a central portion; a discharge chamber disposed in an annular shape surrounding a radially outer side of the suction chamber; a suction passage for introducing refrigerant sucked from an external refrigerant circuit into the suction chamber; and the discharge A discharge passage for sending the refrigerant discharged to the chamber to an external refrigerant circuit; an oil separation chamber arranged in the middle of the discharge passage for separating oil from the refrigerant; and oil separated in communication with the oil separation chamber. A housing in which an oil storage chamber and an oil return passage for returning the oil in the oil storage chamber to the low pressure source side are formed;
A drive shaft rotatably supported at the center of the housing;
A compression mechanism that compresses the refrigerant sucked from the suction chamber by the rotation of the drive shaft and discharges the refrigerant to the discharge chamber, and is further configured as follows.
　前記吐出通路は、環状に配置された前記吐出室の円弧状の上部領域内に該吐出室と区画された第１通路と、該第１通路と前記吐出室とを連通する第２通路と、前記第１通路と前記外部冷媒回路とを連通する第３通路と、を備え、
　前記吐出室の円弧状の上部領域内に、該上部領域を前記駆動軸の軸方向両側の空間に区画する区画部材を配設し、該区画された一方の空間の円弧方向両端を第１区画壁及び第２区画壁によって区画して、他方の吐出室側空間と区画された前記第１通路を形成し、
　前記第１通路の円弧方向中間部を、所定の開口面積の冷媒流路が形成されるように第３区画壁により区画し、
　前記第１通路の、第１区画壁と前記第３区画壁との間の上流側通路部を、前記第２通路によって前記吐出室と連通させてオイル分離室として機能させ、
　前記第１通路の、第２区画壁と前記第３区画壁との間の下流側通路部を、前記第３通路と連通させて前記オイル分離室と前記第３通路とを接続する接続通路として機能させた。 The discharge passage includes a first passage partitioned from the discharge chamber in an arcuate upper region of the discharge chamber arranged in an annular shape, a second passage communicating the first passage and the discharge chamber, A third passage communicating the first passage and the external refrigerant circuit,
A partition member for partitioning the upper region into spaces on both sides in the axial direction of the drive shaft is disposed in the arc-shaped upper region of the discharge chamber, and both ends in the arc direction of the partitioned space are first partitions. Partitioning with a wall and a second partition wall to form the first passage partitioned with the other discharge chamber side space;
The arcuate intermediate portion of the first passage is partitioned by a third partition wall so that a refrigerant flow path having a predetermined opening area is formed,
An upstream passage portion between the first partition wall and the third partition wall of the first passage is communicated with the discharge chamber by the second passage to function as an oil separation chamber;
As a connection passage connecting the oil separation chamber and the third passage by connecting a downstream passage portion between the second partition wall and the third partition wall of the first passage to the third passage. Made it work.
　区画部材と各区画壁によって、吐出室の領域内にオイル分離室と接続通路を容易に形成でき、接続通路によって、オイル分離室を第３通路と容易に接続できるので、オイル分離室の配置の自由度が向上する。また、オイル分離室と接続通路を形成することにより、圧縮機の体格が増大することが無い。 The partition member and each partition wall can easily form the oil separation chamber and the connection passage in the region of the discharge chamber, and the connection passage can easily connect the oil separation chamber to the third passage. The degree of freedom is improved. Further, by forming the oil separation chamber and the connection passage, the size of the compressor does not increase.
実施形態における圧縮機の断面図Sectional drawing of the compressor in an embodiment 実施形態におけるシリンダヘッドの開放端側の図The figure of the open end side of the cylinder head in an embodiment 図２のＡ－Ａ断面図AA sectional view of FIG. 図２のＢ－Ｂ断面図BB sectional view of FIG. 図２のＣ－Ｃ断面図CC sectional view of FIG. 区画部材の斜視図Perspective view of partition member 区画部材の別の形態を示す平面図The top view which shows another form of a division member
　以下、本発明の実施の形態について、詳細に説明する。
　図１は実施形態での圧縮機（特に可変容量圧縮機）の断面図、図２は実施形態におけるシリンダヘッドの開放端側の図、図３は図２のＡ－Ａ断面図、図４は図２のＢ－Ｂ断面図、図５は図２のＣ－Ｃ断面図、図６は区画部材の斜視図である。 Hereinafter, embodiments of the present invention will be described in detail.
1 is a cross-sectional view of a compressor (particularly a variable capacity compressor) in the embodiment, FIG. 2 is a view of an open end side of the cylinder head in the embodiment, FIG. 3 is a cross-sectional view along AA in FIG. 2 is a sectional view taken along the line BB in FIG. 2, FIG. 5 is a sectional view taken along the line CC in FIG. 2, and FIG. 6 is a perspective view of the partition member.
　可変容量圧縮機１００は、複数のシリンダボア１０１ａを備えたシリンダブロック１０１と、シリンダブロック１０１の一端に設けられたフロントハウジング１０２と、シリンダブロック１０１の他端にバルブプレート１０３を介して設けられたシリンダヘッド１０４とを備えている。 The variable capacity compressor 100 includes a cylinder block 101 having a plurality of cylinder bores 101a, a front housing 102 provided at one end of the cylinder block 101, and a cylinder provided at the other end of the cylinder block 101 via a valve plate 103. And a head 104.
　シリンダブロック１０１と、フロントハウジング１０２とによって規定されるクランク室１４０内を横断して、駆動軸１１０が設けられ、その中心部の周囲には、斜板１１１が配置されている。斜板１１１は、駆動軸１１０に固定されたロータ１１２とリンク機構１２０を介して連結し、駆動軸１１０に沿ってその傾角が変化可能となっている。 A drive shaft 110 is provided across the crank chamber 140 defined by the cylinder block 101 and the front housing 102, and a swash plate 111 is disposed around the center thereof. The swash plate 111 is connected to a rotor 112 fixed to the drive shaft 110 via a link mechanism 120, and the inclination angle can be changed along the drive shaft 110.
　リンク機構１２０は、ロータ１１２から突設された第１アーム１１２ａと、斜板１１１から突設された第２アーム１１１ａと、一端側が第１連結ピン１２２を介して第１アーム１１２ａに対して回動自在に連結され、他端側が第２連結ピン１２３を介して第２アーム１１１ａに対して回動自在に連結されたリンクアーム１２１から構成されている。 The link mechanism 120 includes a first arm 112 a projecting from the rotor 112, a second arm 111 a projecting from the swash plate 111, and one end side rotating with respect to the first arm 112 a via the first connecting pin 122. The link arm 121 is movably connected and the other end is rotatably connected to the second arm 111 a via a second connection pin 123.
　斜板１１１の貫通孔１１１ｂは斜板１１１が最大傾角（θmax）と最小傾角（θmin）の範囲で傾動可能となるように形状が形成されており、貫通孔１１１ｂには駆動軸１１０と当接する最大傾角規制部と最小傾角規制部が形成されている。斜板１１１が駆動軸１１０に対して直交するときの斜板の傾角を０°とした場合、貫通孔１１１ｂの最小傾角規制部は斜板１１１をほぼ０°まで傾角変位可能なように形成されている。 The through hole 111b of the swash plate 111 is formed so that the swash plate 111 can tilt within the range of the maximum inclination angle (θmax) and the minimum inclination angle (θmin). The through hole 111b contacts the drive shaft 110. A maximum inclination restriction part and a minimum inclination restriction part are formed. When the inclination angle of the swash plate when the swash plate 111 is orthogonal to the drive shaft 110 is 0 °, the minimum inclination restriction portion of the through hole 111b is formed so that the inclination of the swash plate 111 can be displaced to almost 0 °. ing.
　ロータ１１２と斜板１１１との間には斜板１１１を最小傾角に向けて最小傾角に至るまで付勢する傾角減少バネ１１４が装着され、また斜板１１１とバネ支持部材１１６との間には斜板１１１の傾角を増大する方向に付勢する傾角増大バネ１１５が装着されている。最小傾角において傾角増大バネ１１５の付勢力は傾角減少バネ１１４の付勢力より大きく設定されているので、斜板１１１は駆動軸１１０が回転していないときは、傾角減少バネ１１４と傾角増大バネ１１５の付勢力がバランスする傾角に位置する。 Between the rotor 112 and the swash plate 111, an inclination reduction spring 114 that urges the swash plate 111 toward the minimum inclination angle to reach the minimum inclination angle is mounted, and between the swash plate 111 and the spring support member 116. An inclination increasing spring 115 is attached to urge the swash plate 111 in an increasing direction. Since the urging force of the inclination increasing spring 115 is set to be larger than the urging force of the inclination decreasing spring 114 at the minimum inclination angle, the swash plate 111 has the inclination decreasing spring 114 and the inclination increasing spring 115 when the drive shaft 110 is not rotating. It is located at an inclination angle that balances the urging force.
　駆動軸１１０の一端は、フロントハウジング１０２の外側に突出したボス部１０２ａ内を貫通して外側まで延在し、図示しない動力伝達装置に連結されている。尚、駆動軸１１０とボス部１０２ａとの間には、軸封装置１３０が挿入され、内部と外部とを遮断している。駆動軸１１０及びロータ１１２はラジアル方向に軸受１３１、１３２で支持され、スラスト方向に軸受１３３、スラストプレート１３４で支持されている。尚、駆動軸１１０のスラストプレート１３４の当接部とスラストプレート１３４との隙間は調整ネジ１３５により所定の隙間に調整されている。したがって外部駆動源からの動力が動力伝達装置に伝達され、駆動軸１１０は動力伝達装置と同期して回転可能となっている。 One end of the drive shaft 110 extends to the outside through the boss portion 102a protruding to the outside of the front housing 102, and is connected to a power transmission device (not shown). A shaft seal device 130 is inserted between the drive shaft 110 and the boss portion 102a to shut off the inside and the outside. The drive shaft 110 and the rotor 112 are supported by bearings 131 and 132 in the radial direction, and supported by a bearing 133 and a thrust plate 134 in the thrust direction. The clearance between the contact portion of the thrust plate 134 of the drive shaft 110 and the thrust plate 134 is adjusted to a predetermined clearance by an adjustment screw 135. Therefore, the power from the external drive source is transmitted to the power transmission device, and the drive shaft 110 can rotate in synchronization with the power transmission device.
　シリンダボア１０１ａ内には、ピストン１３６が配置され、ピストン１３６のクランク室１４０側に突出している端部の内側空間には、斜板１１１の外周部が収容され、斜板１１１は一対のシュー１３７を介して、ピストン１３６と連動する構成となっている。したがって斜板１１１の回転によりピストン１３６がシリンダボア１０１ａ内を往復動することが可能となる。 A piston 136 is disposed in the cylinder bore 101a, and an outer peripheral portion of the swash plate 111 is accommodated in an inner space of an end portion of the piston 136 that protrudes toward the crank chamber 140. The swash plate 111 includes a pair of shoes 137. Thus, the piston 136 is linked. Therefore, the piston 136 can reciprocate in the cylinder bore 101a by the rotation of the swash plate 111.
　シリンダヘッド１０４には、中央部に環状の隔壁１０４ａで区画された吸入室１４１と隔壁１０４ａと外周壁１０４ｂとで区画され吸入室１４１を環状に取り囲む吐出室１４２が形成され（図２参照）、吸入室１４１は、シリンダボア１０１ａとは、バルブプレート１０３に設けられた連通孔１０３ａ、吸入弁形成板に形成された吸入弁（図示せず）を介して連通し、吐出室１４２は、シリンダボア１０１ａとは、吐出弁形成板に形成された吐出弁（図示せず）、バルブプレート１０３に設けられた連通孔１０３ｂを介して連通している。 In the cylinder head 104, a suction chamber 141 defined by an annular partition 104a and a discharge chamber 142 defined by the partition 104a and the outer peripheral wall 104b and surrounding the suction chamber 141 in an annular shape are formed at the center (see FIG. 2). The suction chamber 141 communicates with the cylinder bore 101a through a communication hole 103a provided in the valve plate 103 and a suction valve (not shown) formed in the suction valve forming plate, and the discharge chamber 142 communicates with the cylinder bore 101a. Are communicated via a discharge valve (not shown) formed on the discharge valve forming plate and a communication hole 103 b provided in the valve plate 103.
　フロントハウジング１０２、シリンダブロック１０１、吸入弁形成板、バルブプレート１０３、吐出弁形成板、シリンダヘッド１０４が、図示しないセンターガスケット、シリンダガスケット、ヘッドガスケットを介して複数の通しボルト１０５によって締結されて圧縮機ハウジングが形成される。 The front housing 102, the cylinder block 101, the suction valve forming plate, the valve plate 103, the discharge valve forming plate, and the cylinder head 104 are fastened and compressed by a plurality of through bolts 105 via a center gasket, cylinder gasket, and head gasket (not shown). A machine housing is formed.
　シリンダヘッド１０４には、吸入側外部冷媒回路と接続する吸入ポート１０４ｃ、吸入ポート１０４ｃと吸入室１４１とを接続する吸入通路１０４ｄが形成され、これによって吸入室１４１はエアコンシステムの吸入側冷媒回路と接続されている。吸入通路１０４ｄはシリンダヘッド１０４の径方向外側から吐出室１４２の一部を横切るように直線状に伸びている。 The cylinder head 104 is formed with a suction port 104c connected to the suction side external refrigerant circuit, and a suction passage 104d connecting the suction port 104c and the suction chamber 141, whereby the suction chamber 141 is connected to the suction side refrigerant circuit of the air conditioner system. It is connected. The suction passage 104 d extends linearly from the outside in the radial direction of the cylinder head 104 so as to cross a part of the discharge chamber 142.
　また吐出室１４２は後述する吐出通路１０４ｆ（１０４ｆ１、１０４ｆ２、１０４ｆ３）及び吐出ポート１０４ｅを介してエアコンシステムの吐出側外部冷媒回路と接続されている。 The discharge chamber 142 is connected to a discharge-side external refrigerant circuit of the air conditioner system via a discharge passage 104f (104f1, 104f2, 104f3) and a discharge port 104e, which will be described later.
　シリンダヘッド１０４にはさらに制御弁３００が設けられている。制御弁３００は吐出室１４２とクランク室１４０とを連通する連通路１４５の開度を調整し、クランク室１４０への吐出ガス導入量を制御する。またクランク室１４０内の冷媒は、連通路１０１ｃ、空間１４６、バルブプレート１０３に形成されたオリフィス１０３ｃを経由して吸入室１４１へ流れる。 The cylinder head 104 is further provided with a control valve 300. The control valve 300 adjusts the opening of the communication passage 145 that connects the discharge chamber 142 and the crank chamber 140 to control the amount of discharge gas introduced into the crank chamber 140. The refrigerant in the crank chamber 140 flows to the suction chamber 141 via the communication passage 101 c, the space 146, and the orifice 103 c formed in the valve plate 103.
　したがって制御弁３００によりクランク室１４０の圧力を変化させ、斜板１１１の傾斜角、つまりピストン１３６のストロークを変化させることにより可変容量圧縮機１００の吐出容量を可変制御することができる。 Therefore, the discharge capacity of the variable capacity compressor 100 can be variably controlled by changing the pressure of the crank chamber 140 by the control valve 300 and changing the inclination angle of the swash plate 111, that is, the stroke of the piston 136.
　エアコン作動時、つまり可変容量圧縮機１００の作動状態では、外部信号に基づいて制御弁３００に内蔵されるソレノイドの通電量が調整され、吸入室１４１の圧力が所定値になるように吐出容量が可変制御される。制御弁３００は、外部環境に応じて、吸入圧力を最適制御することができる。 When the air conditioner is operating, that is, when the variable capacity compressor 100 is in an operating state, the energization amount of the solenoid built in the control valve 300 is adjusted based on the external signal, and the discharge capacity is adjusted so that the pressure in the suction chamber 141 becomes a predetermined value. Variable control. The control valve 300 can optimally control the suction pressure according to the external environment.
　次に吐出通路及びオイル分離室等の構成について、図１の他、図２～図６を参照しつつ、説明する。
　シリンダヘッド１０４の上部領域には、吐出側外部冷媒回路と接続する吐出ポート１０４ｅと、吐出ポート１０４ｅと吐出室１４２とを接続する吐出通路１０４ｆ（１０４ｆ１、１０４ｆ２、１０４ｆ３）が形成され、これらによって吐出室１４２はエアコンシステムの吐出側冷媒回路と接続されている。尚、ここで言う上部（又は下部）とは圧縮機が装着対象に装着されている状態を基準としている。 Next, the configuration of the discharge passage and the oil separation chamber will be described with reference to FIGS. 2 to 6 in addition to FIG.
In the upper region of the cylinder head 104, there are formed a discharge port 104e connected to the discharge-side external refrigerant circuit, and a discharge passage 104f (104f1, 104f2, 104f3) connecting the discharge port 104e and the discharge chamber 142. The chamber 142 is connected to a discharge side refrigerant circuit of the air conditioner system. In addition, the upper part (or lower part) said here is based on the state by which the compressor is mounted | worn with the mounting object.
　吐出通路１０４ｆは、吐出室１４２の上部領域に区画部材１５０により吐出室１４２と区画された第１通路１０４ｆ１と、第１通路１０４ｆ１と吐出室１４２とを連通する第２通路１０４ｆ２と、第１通路１０４ｆ１と外部冷媒回路とを連通する第３通路１０４ｆ３から構成される。 The discharge passage 104f includes a first passage 104f1 partitioned from the discharge chamber 142 by a partition member 150 in an upper region of the discharge chamber 142, a second passage 104f2 communicating the first passage 104f1 and the discharge chamber 142, and a first passage. It is comprised from the 3rd channel | path 104f3 which connects 104f1 and an external refrigerant circuit.
　第１通路１０４ｆ１はシリンダヘッド１０４の底壁１０４ｇから延設（内側に突設）された第１区画壁１０４ｈと第２区画壁１０４ｉによって両端が区画され、吐出室の径方向外側の周壁（外周壁１０４ｂ側）、吐出室の径方向内側の周壁（隔壁１０４ａ側）、第１区画壁１０４ｈ及び第２区画壁１０４ｉで区画された開口を区画部材１５０で覆われて吐出室１４２と区画されている。換言すれば、吐出室１４２の円弧状の上部領域内に、該上部領域を駆動軸１１０の軸方向両側の空間に区画する区画部材１５０を配設し、該区画された一方の空間の円弧方向両端を第１区画壁１０４ｈ及び第２区画壁１０４ｉによって区画することにより、他方の吐出室側空間と区画された第１通路１０４ｆ１が形成されている。 The first passage 104f1 is partitioned at both ends by a first partition wall 104h and a second partition wall 104i extending from the bottom wall 104g of the cylinder head 104 (projecting inward), and a peripheral wall (outer periphery) on the radially outer side of the discharge chamber. Wall 104b side), the peripheral wall (in the partition wall 104a side) on the radially inner side of the discharge chamber, the opening defined by the first partition wall 104h and the second partition wall 104i is covered with the partition member 150 and partitioned from the discharge chamber 142. Yes. In other words, a partition member 150 that partitions the upper region into spaces on both sides in the axial direction of the drive shaft 110 is disposed in the arc-shaped upper region of the discharge chamber 142, and the arc direction of the partitioned one space By dividing both ends by the first partition wall 104h and the second partition wall 104i, a first passage 104f1 partitioned from the other discharge chamber side space is formed.
　第１区画壁１０４ｈと第２区画壁１０４ｉとの間には第３区画壁１０４ｊがシリンダヘッド１０４の底壁１０４ｇから延設され、第３区画壁１０４ｊの頂部と区画部材１５０との間に所定の開口面積の流路が形成されるように第３区画壁１０４ｊの頂部高さが設定されている（図３参照）。したがって第１通路１０４ｆ１は、第１区画壁１０４ｈと第３区画壁１０４ｊによって区画される空間１０４ｆ１ａと第３区画壁１０４ｊと第２区画壁１０４ｉによって区画される空間１０４ｆ１ｂとに区画されている。 A third partition wall 104j extends from the bottom wall 104g of the cylinder head 104 between the first partition wall 104h and the second partition wall 104i, and a predetermined distance is provided between the top of the third partition wall 104j and the partition member 150. The top height of the third partition wall 104j is set so as to form a flow path having an opening area (see FIG. 3). Therefore, the first passage 104f1 is partitioned into a space 104f1a partitioned by the first partition wall 104h and the third partition wall 104j, and a space 104f1b partitioned by the third partition wall 104j and the second partition wall 104i.
　区画部材１５０は、第１通路１０４ｆ１と吐出室１４２とを区画する平板１５０ａと、平板１５０ａの周縁から立ち上がる複数の側板１５０ｂを備え、吐出室１４２の環状形状に合わせた円弧状の形状を成して吐出室１４２内に嵌合されている（図６参照）。区画部材１５０は例えばポリアミド系やポリフェニレンサルファイド系樹脂材料で形成されている。 The partition member 150 includes a flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and a plurality of side plates 150b that rise from the periphery of the flat plate 150a, and has an arc shape that matches the annular shape of the discharge chamber 142. Are fitted in the discharge chamber 142 (see FIG. 6). The partition member 150 is made of, for example, a polyamide-based or polyphenylene sulfide-based resin material.
　区画部材１５０はシリンダヘッド１０４にバルブプレート１０３側が接合することにより抜け止めされている（直接的には側板１５０ｂの端部がヘッドガスケットに当接することにより抜け止めされる）。 The partition member 150 is prevented from coming off when the valve plate 103 side is joined to the cylinder head 104 (directly, the end of the side plate 150b is kept from coming into contact with the head gasket).
　尚、シリンダヘッド１０４には平板１５０ａが当接して平板１５０ａを位置決めする位置決め面１０４ｋが形成されており、平板１５０ａが位置決め面１０４ｋに当接してシリンダヘッド１０４内で位置決めされた時、側板１５０ｂの端部はシリンダヘッド１０４の開放端面とほぼ同じ位置に高さが設定されている（図４参照）。ほぼ同じ位置とはシリンダヘッド１０４の開放端面を基準として僅かに低い場合と僅かに高い場合を含む。 The cylinder head 104 is formed with a positioning surface 104k for positioning the flat plate 150a by contacting the flat plate 150a. When the flat plate 150a is positioned in contact with the positioning surface 104k and positioned in the cylinder head 104, the side plate 150b The height of the end is set at substantially the same position as the open end surface of the cylinder head 104 (see FIG. 4). The substantially the same position includes a case where it is slightly lower and a case where it is slightly higher than the open end surface of the cylinder head 104.
　例えば側板１５０ｂの変形が許容されない場合は、側板１５０ｂの端部はシリンダヘッド１０４の開放端面より僅かに低い位置に高さを設定し、側板１５０ｂの変形が許容される場合は側板１５０ｂの端部はシリンダヘッド１０４の開放端面より僅かに高い位置も許容するものである。 For example, when the deformation of the side plate 150b is not allowed, the end of the side plate 150b is set to a height slightly lower than the open end surface of the cylinder head 104, and when the deformation of the side plate 150b is allowed, the end of the side plate 150b is set. Allows a position slightly higher than the open end face of the cylinder head 104.
　側板１５０ｂの変形が許容される場合は、側板１５０ｂの端部をシリンダヘッド１０４の開放端面より僅かに高い位置に設定すれば、ハウジングを締結したときに区画部材１５０が位置決め面１０４ｋに押圧されてシリンダヘッド１０４とバルブプレート１０３の間に挟持され、区画部材１５０をシリンダヘッド１０４内に確実に保持できる（直接的には側板１５０ｂの端部がヘッドガスケットに当接している）。また側板１５０ｂが吐出室１４２の径方向外側の周壁（外周壁１０４ｂ側）と吐出室１４２の径方向内側の周壁（隔壁１０４ａ側）を押圧するように形成しても良い。このようしても区画部材１５０ががたつくことがなく、シリンダヘッド内に確実に保持される。 When the deformation of the side plate 150b is allowed, if the end of the side plate 150b is set to a position slightly higher than the open end surface of the cylinder head 104, the partition member 150 is pressed against the positioning surface 104k when the housing is fastened. It is sandwiched between the cylinder head 104 and the valve plate 103, and the partition member 150 can be securely held in the cylinder head 104 (the end of the side plate 150b directly contacts the head gasket). Further, the side plate 150b may be formed so as to press the radially outer peripheral wall (the outer peripheral wall 104b side) of the discharge chamber 142 and the radially inner peripheral wall (the partition wall 104a side) of the discharge chamber 142. Even if it does in this way, the division member 150 does not rattle and is reliably hold | maintained in a cylinder head.
　第２通路１０４ｆ２は、区画部材１５０を吐出室１４２に嵌合することにより、第３区画壁１０４ｊの近傍で吐出室１４２の径方向外側の周壁（外周壁１０４ｂ側）と平板１５０ａの周縁との間に形成され、吐出室１４２と第１通路１０４ｆ１の空間１０４ｆ１ａとを連通している（図２参照）。 By fitting the partition member 150 into the discharge chamber 142, the second passage 104f2 is formed between the peripheral wall (on the outer peripheral wall 104b side) of the discharge chamber 142 in the vicinity of the third partition wall 104j and the peripheral edge of the flat plate 150a. It is formed between the discharge chamber 142 and the space 104f1a of the first passage 104f1 (see FIG. 2).
　第３通路１０４ｆ３は、第１通路１０４ｆ１の空間１０４ｆ１ｂと吐出ポート１０４ｅに接続する吐出側外部冷媒回路と連通している（図４参照）。
　第１区画壁１０４ｈと第３区画壁１０４ｊとで区画される空間１０４ｆ１ａは、連通孔１０４ｍを経由して貯油室１０４ｎに連通している（図５参照）。貯油室１０４ｎは筒状の空間を成して第１区画壁１０４ｈの下部からシリンダヘッド１０４の下方に向けて延設され、シリンダヘッド１０４の径方向外側から封止部材１６０により封止されている。貯油室１０４ｎの下部領域はオイル戻し通路１０４ｐを介して吸入室１４１と連通している。尚オイル戻し通路１０４ｐには図示しない絞りが配置されている。 The third passage 104f3 communicates with the discharge-side external refrigerant circuit connected to the space 104f1b of the first passage 104f1 and the discharge port 104e (see FIG. 4).
A space 104f1a defined by the first partition wall 104h and the third partition wall 104j communicates with the oil storage chamber 104n via the communication hole 104m (see FIG. 5). The oil storage chamber 104n forms a cylindrical space, extends from the lower portion of the first partition wall 104h toward the lower side of the cylinder head 104, and is sealed by a sealing member 160 from the radially outer side of the cylinder head 104. . The lower region of the oil storage chamber 104n communicates with the suction chamber 141 through the oil return passage 104p. A throttle (not shown) is disposed in the oil return passage 104p.
　連通孔１０４ｍは第１区画壁１０４ｈを貫通して一端が空間１０４ｆ１ａに開口し、その開口端は区画部材１５０の平板１５０ａの近傍に位置している。
　第１区画壁１０４ｈは第３区画壁１０４ｉより下側に配設され、第２通路１０４ｆ２は第３区画壁１０４ｊの近傍で吐出室１４２の径方向外側の周壁（外周壁１０４ｂ側）に沿って形成されている。このため、吐出室１４２から第２通路１０４ｆ２を介して空間１０４ｆ１ａに流入した冷媒は、外周壁１０４ｂ側に沿ってシリンダヘッド１０４の底壁１０４ｇに向けた流れとなり、その後底壁１０４ｇから第１区画壁１０４ｈに沿って平板１５０ａに向かう流れが発生する。 The communication hole 104m passes through the first partition wall 104h and opens at one end to the space 104f1a, and the opening end is located in the vicinity of the flat plate 150a of the partition member 150.
The first partition wall 104h is disposed below the third partition wall 104i, and the second passage 104f2 is in the vicinity of the third partition wall 104j along the peripheral wall (outer peripheral wall 104b side) on the radially outer side of the discharge chamber 142. Is formed. Therefore, the refrigerant that has flowed into the space 104f1a from the discharge chamber 142 through the second passage 104f2 flows toward the bottom wall 104g of the cylinder head 104 along the outer peripheral wall 104b side, and then flows from the bottom wall 104g to the first partition. A flow toward the flat plate 150a is generated along the wall 104h.
　その後、第３区画壁１０４ｊの頂部と区画部材１５０との間に形成された流路を介して空間１０４ｆ１ｂに流れる。
　このような空間１０４ｆ１ａ内の流れの中で冷媒流に含まれるオイルが効果的に分離され、分離されたオイルは第１区画壁１０４ｈ側に集められて連通孔１０４ｍを介して貯油室１０４ｎに貯留される。貯油室１０４ｎに貯留されたオイルはオイル戻し通路１０４ｐを介して吸入室１４１に還流される。 After that, it flows into the space 104f1b through a flow path formed between the top of the third partition wall 104j and the partition member 150.
The oil contained in the refrigerant flow is effectively separated in the flow in the space 104f1a, and the separated oil is collected on the first partition wall 104h side and stored in the oil storage chamber 104n through the communication hole 104m. Is done. The oil stored in the oil storage chamber 104n is returned to the suction chamber 141 through the oil return passage 104p.
　つまり、空間１０４ｆ１ａはオイル分離室となり、空間１０４ｆ１ｂは該オイル分離室と第３通路１０４ｆ３とを接続する接続通路となっている。
　このように、第１通路１０４ｆ１は、オイル分離室（空間１０４ｆ１ａ）と、該オイル分離室と第３通路１０４ｆ３とを接続する接続通路（空間１０４ｆ１ｂ）とから構成されるので、第３通路１０４ｆ３とオイル分離室とが離れて配置されていても第２区画壁１０４ｉの位置を変更して空間１０４ｆ１ｂを拡大すればオイル分離室を容易に第３通路１０４ｆ３に接続できる。換言すれば、圧縮機の設置スペース，形状等の制約によって、吐出側外部冷媒回路と接続される吐出ポート１０４ｅ及び第３通路１０４ｆ３の形成位置が設計変更された場合でも、オイル分離室は任意の位置に配設することができ、配置の自由度が向上する。 That is, the space 104f1a is an oil separation chamber, and the space 104f1b is a connection passage that connects the oil separation chamber and the third passage 104f3.
As described above, the first passage 104f1 includes the oil separation chamber (space 104f1a) and the connection passage (space 104f1b) connecting the oil separation chamber and the third passage 104f3. Even if the oil separation chamber is spaced apart, the oil separation chamber can be easily connected to the third passage 104f3 by changing the position of the second partition wall 104i to expand the space 104f1b. In other words, even when the design of the formation position of the discharge port 104e and the third passage 104f3 connected to the discharge-side external refrigerant circuit is changed due to restrictions on the installation space, shape, etc. of the compressor, the oil separation chamber can be It can arrange | position in a position and the freedom degree of arrangement | positioning improves.
　また、オイル分離室と接続通路はシリンダヘッド１０４の底壁から延設された区画壁と、吐出室１４２に嵌合される区画部材１５０によって容易に形成でき、さらに、吐出室１４２内の領域に形成されるので圧縮機１００の体格を増大することが無い。 Further, the oil separation chamber and the connection passage can be easily formed by a partition wall extending from the bottom wall of the cylinder head 104 and a partition member 150 fitted to the discharge chamber 142, and further in an area in the discharge chamber 142. Since it is formed, the physique of the compressor 100 is not increased.
　また、本実施形態によれば、第１区画壁１０４ｈは第３区画壁１０４ｊより下側に配設され、オイル分離室（空間１０４ｆ１ａ）と貯油室１０４ｎとを連通する連通路（連通孔１０４ｍ）は第１区画壁１０４ｈ又はその近傍に開口し、第２通路１０４ｆ２は第３区画壁１０４ｊの近傍に開口したことにより、第２通路１０４ｆ２を連通路（連通孔１０４ｍ）の開口端から遠ざけているので、該開口端近傍では吐出室１４２からオイル分離室（空間１０４ｆ１ａ）に冷媒が流入する際に発生する乱流の影響を小さくでき、その結果第１区画壁１０４ｈ側にオイルが集まり易くなるので貯油室１０４ｎに効果的にオイルが貯留できる。 Further, according to the present embodiment, the first partition wall 104h is disposed below the third partition wall 104j, and the communication path (communication hole 104m) that communicates between the oil separation chamber (space 104f1a) and the oil storage chamber 104n. Is opened in or near the first partition wall 104h, and the second passage 104f2 is opened in the vicinity of the third partition wall 104j, thereby moving the second passage 104f2 away from the opening end of the communication passage (communication hole 104m). Therefore, in the vicinity of the opening end, the influence of the turbulent flow generated when the refrigerant flows from the discharge chamber 142 into the oil separation chamber (the space 104f1a) can be reduced, and as a result, the oil easily collects on the first partition wall 104h side. Oil can be effectively stored in the oil storage chamber 104n.
　また、本実施形態によれば、吐出室１４２の径方向外側の周壁１０４ｂと区画部材１５０の周縁との間に第２通路１０４ｆ２を形成したことにより、第２通路１０４ｆ２の形成が容易となる。また吐出室１４２の外周壁１０４ｂに沿って吐出室１４２内の冷媒がオイル分離室（空間１０４ｆ１ａ）に流入するので、外周壁１０４ｂから底壁を経由して貯油室１０４ｎに連通する開口端に向けての流れが発生し、オイル分離室（空間１０４ｆ１ａ）でのオイル分離が効果的に行なわれる。 Further, according to the present embodiment, since the second passage 104f2 is formed between the radially outer peripheral wall 104b of the discharge chamber 142 and the peripheral edge of the partition member 150, the second passage 104f2 can be easily formed. Further, since the refrigerant in the discharge chamber 142 flows into the oil separation chamber (space 104f1a) along the outer peripheral wall 104b of the discharge chamber 142, the refrigerant is directed from the outer peripheral wall 104b to the opening end communicating with the oil storage chamber 104n via the bottom wall. Thus, oil separation is effectively performed in the oil separation chamber (space 104f1a).
　また、本実施形態によれば、区画部材１５０は、第１通路１０４ｆ１と吐出室１４２とを区画する平板１５０ａと、平板１５０ａの周縁から立ち上がる複数の側板１５０ｂを備え、吐出室１４２の環状形状に合わせた形状を成して吐出室１４２に嵌合されるものであって、平板１５０ａが第１通路１４０ｆ１と吐出室１４２とを区画してシリンダヘッド１０４内で位置決めされた時、側板の端部はシリンダヘッド１０４の開放端面とほぼ同じ位置になるように高さが設定されていることにより、区画部材１５０をシリンダヘッド１０４に固定する部材が不要となり、コストアップを抑制できる。 Further, according to the present embodiment, the partition member 150 includes the flat plate 150a that partitions the first passage 104f1 and the discharge chamber 142, and the plurality of side plates 150b that rise from the peripheral edge of the flat plate 150a, and the discharge chamber 142 has an annular shape. When the flat plate 150a is positioned in the cylinder head 104 by partitioning the first passage 140f1 and the discharge chamber 142, the end portion of the side plate is formed. Since the height is set so as to be substantially the same position as the open end surface of the cylinder head 104, a member for fixing the partition member 150 to the cylinder head 104 becomes unnecessary, and an increase in cost can be suppressed.
　また、本実施形態によれば、区画部材１５０は樹脂材料により形成され、区画部材１５０が吐出室１４２に嵌合された時、側板は吐出室１４２の径方向外側の周壁１０４ｂ及び径方向内側の周壁１０４ａを押圧するように形成されていることにより、区画部材１５０ががたつくことがなく、シリンダヘッド１０４に保持される。 Further, according to the present embodiment, the partition member 150 is formed of a resin material, and when the partition member 150 is fitted into the discharge chamber 142, the side plate is disposed on the radially outer peripheral wall 104 b and the radially inner side of the discharge chamber 142. By being formed so as to press the peripheral wall 104a, the partition member 150 does not rattle and is held by the cylinder head 104.
　また、本実施形態によれば、区画部材１５０は樹脂材料により形成され、ハウジング（シリンダヘッド１０４，シリンダブロック１０１，フロントハウジング１０２）が締結された時、区画部材１５０はシリンダヘッド１０４とバルブプレート１０３との間に挟持されることにより、区画部材１５０がシリンダヘッド１０４内の位置決め部に押圧されるので、区画部材１５０ががたつくことがなくシリンダヘッド内に確実に保持できる。 Further, according to the present embodiment, the partition member 150 is formed of a resin material, and when the housing (cylinder head 104, cylinder block 101, front housing 102) is fastened, the partition member 150 includes the cylinder head 104 and the valve plate 103. , The partition member 150 is pressed against the positioning portion in the cylinder head 104, so that the partition member 150 can be securely held in the cylinder head without rattling.
　ただし、本発明は、上記実施形態に限定されるものではない。
　例えば、区画部材はネジ等の固定部材でシリンダヘッドに固定するものであっても良い。 However, the present invention is not limited to the above embodiment.
For example, the partition member may be fixed to the cylinder head by a fixing member such as a screw.
　また、図７に示すように、第１区画壁２００ａ及び第２区画壁２００ｂを、区画部材２００の両端部をシリンダヘッド１０４の底壁１０４ｇ側に折曲して形成することもでき、その先端部をシリンダヘッド１０４の底壁１０４ｇに形成した溝に係合させて抜け止めさせることができる。 Further, as shown in FIG. 7, the first partition wall 200a and the second partition wall 200b can be formed by bending both end portions of the partition member 200 toward the bottom wall 104g side of the cylinder head 104. The portion can be engaged with a groove formed in the bottom wall 104g of the cylinder head 104 to prevent it from coming off.
　また、同じく図７に示すように、区画部材２００の中間部を屈曲させて第３区画壁２００ｃを形成することもできる。
　また、区画部材は樹脂材料に限定されるものではなく、例えば金属板等の他の材料で形成しても良い。 Similarly, as shown in FIG. 7, the third partition wall 200 c can be formed by bending an intermediate portion of the partition member 200.
Further, the partition member is not limited to the resin material, and may be formed of other materials such as a metal plate.
　また、区画部材１５０の平板１５０ａに貫通孔を形成して第２連通路１０４ｆ２としても良い。
　また、以上の実施形態では、可変容量圧縮機について説明したが、固定容量圧縮機であってもよく、本発明は圧縮機全般に適用可能である。 Further, a through hole may be formed in the flat plate 150a of the partition member 150 to form the second communication path 104f2.
Moreover, although the variable capacity compressor was demonstrated in the above embodiment, a fixed capacity compressor may be sufficient and this invention is applicable to the whole compressor.
　このように図示の実施形態はあくまで本発明を例示するものであり、本発明は、説明した実施形態により直接的に示されるものに加え、特許請求の範囲内で当業者によりなされる各種の改良・変更を包含するものであることは言うまでもない。 Thus, the illustrated embodiments are merely illustrative of the present invention, and the present invention includes various improvements made by those skilled in the art within the scope of the claims, in addition to those directly illustrated by the described embodiments. -Needless to say, it encompasses changes.
１００　可変容量圧縮機
１０１　シリンダブロック
１０１ａ　シリンダボア
１０２　フロントハウジング
１０３　バルブプレート
１０４　シリンダヘッド
１０４ａ　隔壁
１０４ｂ　外周壁
１０４ｃ　吸入ポート
１０４ｄ　吸入通路
１０４ｅ　吐出ポート
１０４ｆ　吐出通路
１０４ｆ１　第１通路
１０４ｆ２　第２通路
１０４ｆ１ａ　空間（オイル分離室）
１０４ｆ１ｂ　空間（接続通路）
１０４ｆ３　第３通路
１０４ｇ　シリンダヘッド底壁
１０４ｈ　第１区画壁
１０４ｉ　第２区画壁
１０４ｊ　第３区画壁
１１０　駆動軸
１１１　斜板
１１２　ロータ
１２０　リンク機構
１３６　ピストン
１４０　クランク室
１４１　吸入室
１４２　吐出室
１５０　区画部材
１５０ａ　平板
１５０ｂ　側板 100 Variable capacity compressor 101 Cylinder block 101a Cylinder bore 102 Front housing 103 Valve plate 104 Cylinder head 104a Partition wall 104b Outer wall 104c Suction port 104d Suction passage 104e Discharge port 104f Discharge passage 104f1 First passage 104f2 Second passage 104f1a Space (oil separation chamber) )
104f1b space (connection passage)
104f3 Third passage 104g Cylinder head bottom wall 104h First partition wall 104i Second partition wall 104j Third partition wall 110 Drive shaft 111 Swash plate 112 Rotor 120 Link mechanism 136 Piston 140 Crank chamber 141 Suction chamber 142 Discharge chamber 150 Partition member 150a Flat plate 150b Side plate

Claims (7)

  1. 　中央部に配置された吸入室と、該吸入室の径方向外側を取り囲んで環状に配置された吐出室と、外部冷媒回路から吸入された冷媒を前記吸入室に導入する吸入通路と、前記吐出室に吐出された冷媒を外部冷媒回路に送出する吐出通路と、前記吐出通路の途上に配置され冷媒からオイルを分離するオイル分離室と、該オイル分離室に連通し分離されたオイルを貯留する貯油室と、該貯油室内のオイルを低圧源側に戻すオイル戻し通路と、が形成されたハウジングと、
    　前記ハウジングの中心部に回転可能に支持された駆動軸と、
    　前記駆動軸の回転によって前記吸入室から吸入した冷媒を圧縮して前記吐出室へ吐出する圧縮機構と、を備えた圧縮機であって、
    　前記吐出通路は、環状に配置された前記吐出室の円弧状の上部領域内に該吐出室と区画された第１通路と、該第１通路と前記吐出室とを連通する第２通路と、前記第１通路と前記外部冷媒回路とを連通する第３通路と、を備え、
    　前記吐出室の円弧状の上部領域内に、該上部領域を前記駆動軸の軸方向両側の空間に区画する区画部材を配設し、該区画された一方の空間の円弧方向両端を第１区画壁及び第２区画壁によって区画して、他方の吐出室側空間と区画された前記第１通路を形成し、
    　前記第１通路の円弧方向中間部を、所定の開口面積の冷媒流路が形成されるように第３区画壁により区画し、
    　前記第１通路の、第１区画壁と前記第３区画壁との間の上流側通路部を、前記第２通路によって前記吐出室と連通させてオイル分離室として機能させ、
    　前記第１通路の、第２区画壁と前記第３区画壁との間の下流側通路部を、前記第３通路と連通させて前記オイル分離室と前記第３通路とを接続する接続通路として機能させた、ことを特徴とする圧縮機。     A suction chamber disposed in a central portion; a discharge chamber disposed in an annular shape surrounding a radially outer side of the suction chamber; a suction passage for introducing refrigerant sucked from an external refrigerant circuit into the suction chamber; and the discharge A discharge passage for sending the refrigerant discharged to the chamber to an external refrigerant circuit; an oil separation chamber arranged in the middle of the discharge passage for separating oil from the refrigerant; and oil separated in communication with the oil separation chamber. A housing in which an oil storage chamber and an oil return passage for returning the oil in the oil storage chamber to the low pressure source side are formed;
    A drive shaft rotatably supported at the center of the housing;
    A compressor having a compression mechanism that compresses the refrigerant sucked from the suction chamber by the rotation of the drive shaft and discharges the refrigerant to the discharge chamber,
    The discharge passage includes a first passage partitioned from the discharge chamber in an arcuate upper region of the discharge chamber arranged in an annular shape, a second passage communicating the first passage and the discharge chamber, A third passage communicating the first passage and the external refrigerant circuit,
    A partition member for partitioning the upper region into spaces on both sides in the axial direction of the drive shaft is disposed in the arc-shaped upper region of the discharge chamber, and both ends in the arc direction of the partitioned space are first partitions. Partitioning with a wall and a second partition wall to form the first passage partitioned with the other discharge chamber side space;
    The arcuate intermediate portion of the first passage is partitioned by a third partition wall so that a refrigerant flow path having a predetermined opening area is formed,
    An upstream passage portion between the first partition wall and the third partition wall of the first passage is communicated with the discharge chamber by the second passage to function as an oil separation chamber;
    As a connection passage connecting the oil separation chamber and the third passage by connecting a downstream passage portion between the second partition wall and the third partition wall of the first passage to the third passage. A compressor characterized by functioning.
  2. 　前記第１区画壁、第２区画壁及び第３区画壁の少なくとも１つは、前記ハウジングの底壁を延設して形成されることを特徴とする請求項１に記載の圧縮機。 The compressor according to claim 1, wherein at least one of the first partition wall, the second partition wall, and the third partition wall is formed by extending a bottom wall of the housing.
  3. 　前記第１区画壁は前記第３区画壁より下側に配設され、前記オイル分離室と前記貯油室とを連通する連通路は前記第１区画壁又はその近傍に開口し、前記第２通路は前記第３区画壁の近傍に開口していることを特徴とする請求項１に記載の圧縮機。 The first partition wall is disposed below the third partition wall, and a communication passage that communicates the oil separation chamber and the oil storage chamber opens at or near the first partition wall, and the second passage 2. The compressor according to claim 1, wherein the compressor is opened in the vicinity of the third partition wall.
  4. 　前記吐出室の径方向外側の周壁と前記区画部材の周縁との間に前記第２通路が形成されることを特徴とする請求項２に記載の圧縮機。 The compressor according to claim 2, wherein the second passage is formed between a radially outer peripheral wall of the discharge chamber and a peripheral edge of the partition member.
  5. 　前記ハウジングが、前記吸入室、吐出室、吸入通路、吐出通路、オイル分離室、貯油室、及びオイル戻し通路が形成されたシリンダヘッドと、前記駆動軸の径方向外側を取り囲んで圧縮機構が形成されたシリンダブロックと、前記シリンダブロックの一端に設けられ前記シリンダブロックと協働してクランク室を画成するフロントハウジングと、を含んで構成されると共に、前記シリンダヘッドと前記シリンダブロックとの間に吸入弁及び吐出弁が形成されたバルブプレートが挟持され、
    　前記区画部材は、前記第１通路と前記吐出室とを区画する平板と、該平板の周縁から立ち上がる複数の側板とを備え、前記吐出室の環状形状に合わせた形状を成して前記吐出室に嵌合されるものであって、
    　前記平板が前記第１通路と前記吐出室とを区画して前記シリンダヘッド内で位置決めされた時、前記側板の端部は前記シリンダヘッドの開放端面とほぼ同じ位置になるように高さが設定されていることを特徴とする請求項１に記載の圧縮機。     The housing surrounds the cylinder head in which the suction chamber, the discharge chamber, the suction passage, the discharge passage, the oil separation chamber, the oil storage chamber, and the oil return passage are formed, and a compression mechanism is formed surrounding the outer side in the radial direction of the drive shaft And a front housing that is provided at one end of the cylinder block and defines a crank chamber in cooperation with the cylinder block, and between the cylinder head and the cylinder block. A valve plate on which an intake valve and a discharge valve are formed is sandwiched between
    The partition member includes a flat plate that partitions the first passage and the discharge chamber, and a plurality of side plates that rise from a peripheral edge of the flat plate, and has a shape that matches the annular shape of the discharge chamber. It is fitted to
    When the flat plate is positioned in the cylinder head by dividing the first passage and the discharge chamber, the height of the end of the side plate is set to be substantially the same as the open end surface of the cylinder head. The compressor according to claim 1, wherein the compressor is provided.
  6. 　前記区画部材は樹脂材料により形成され、該区画部材が前記吐出室に嵌合された時、前記側板は前記吐出室の径方向外側及び径方向内側の周壁を押圧するように形成されていることを特徴とする請求項５に記載の圧縮機。 The partition member is formed of a resin material, and when the partition member is fitted into the discharge chamber, the side plate is formed to press the radially outer and radially inner peripheral walls of the discharge chamber. The compressor according to claim 5.
  7. 　前記区画部材は樹脂材料により形成され、前記ハウジングが締結された時、前記区画部材は前記シリンダヘッドと前記バルブプレートとの間に挟持されることを特徴とする請求項５に記載の圧縮機。 6. The compressor according to claim 5, wherein the partition member is formed of a resin material, and the partition member is sandwiched between the cylinder head and the valve plate when the housing is fastened.
PCT/JP2012/077864 2011-11-02 2012-10-29 Compressor WO2013065632A1 (en)

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KR102229832B1 (en) * 2015-10-07 2021-03-22 한온시스템 주식회사 Oil separator for compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006144579A (en) * 2004-11-16 2006-06-08 Sanden Corp Gas compressor
JP2006144660A (en) * 2004-11-19 2006-06-08 Sanden Corp Compressor
JP2009008101A (en) * 2008-10-15 2009-01-15 Sanden Corp Compressor with built-in oil separator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006144579A (en) * 2004-11-16 2006-06-08 Sanden Corp Gas compressor
JP2006144660A (en) * 2004-11-19 2006-06-08 Sanden Corp Compressor
JP2009008101A (en) * 2008-10-15 2009-01-15 Sanden Corp Compressor with built-in oil separator

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