EP1450043B1 - Compresseur - Google Patents

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Publication number
EP1450043B1
EP1450043B1 EP04003502A EP04003502A EP1450043B1 EP 1450043 B1 EP1450043 B1 EP 1450043B1 EP 04003502 A EP04003502 A EP 04003502A EP 04003502 A EP04003502 A EP 04003502A EP 1450043 B1 EP1450043 B1 EP 1450043B1
Authority
EP
European Patent Office
Prior art keywords
refrigerant gas
discharge
housing
compressor
cylinder block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04003502A
Other languages
German (de)
English (en)
Other versions
EP1450043A3 (fr
EP1450043A2 (fr
Inventor
Seung-Yong Hwang
Tae-Young Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanon Systems Corp
Original Assignee
Halla Climate Control Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halla Climate Control Corp filed Critical Halla Climate Control Corp
Publication of EP1450043A2 publication Critical patent/EP1450043A2/fr
Publication of EP1450043A3 publication Critical patent/EP1450043A3/fr
Application granted granted Critical
Publication of EP1450043B1 publication Critical patent/EP1450043B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • 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

Definitions

  • the present invention relates to a compressor, and more particularly, to a compressor that can effectively reduce a refrigerant gas pulsation pressure upon discharge of a refrigerant gas.
  • a compressor which is adapted for being used in an air conditioning system of an automobile, selectively receives the power of an engine transmitted from a pulley by the intermittent action of an electromagnetic clutch, sucks a refrigerant gas coming from an evaporator thereinto, and compresses the refrigerant gas to discharge the compressed refrigerant gas to a condenser.
  • the compressor is different in the types in accordance with the compression construction, and the type widely utilized in the automobiles is a swash plate type of compressor.
  • FIGS. 1 to 4 show the structure of a general swash plate type of compressor.
  • the general swash plate type of compressor is constructed in such manners that a swash plate 40 onto which a drive shaft 30 is mounted is assembled with a pair of cylinder blocks 10 and 20, respectively, and a plurality of pistons 50 are disposed on the outer face of the swash plate 40 in such a manner as to be housed in a plurality of cylinder bores formed on the cylinder blocks 10 and 20.
  • Each piston 50 linearly reciprocates in the corresponding cylinder bore with the help of piston shoes 60 as the swash plate 40 is rotated, thereby sucking and compressing the refrigerant gas.
  • valve unit 70 that is provided with a suction valve 71, a valve plate 72 and a discharge valve 73, and a gasket are assembled with the outsides of the cylinder blocks 10 and 20, respectively, in the aforementioned order, and a front housing 80 is coupled with the cylinder block 10 and a rear housing 90 is coupled with the cylinder block 20, for housing and protecting the components as mentioned above therein.
  • the general swash plate type of compressor rotates the swash plate 40 when power is applied from a pulley of an electromagnetic clutch 31, and whenever the swash plate 40 is rotated at a time, the plurality of pistons 50 that are disposed at the outer face of the swash plate 40 start to carry out the reciprocating motion, thereby completing one stroke time.
  • the plurality of pistons 50 are moved toward the front housing 80 and at the same time, the others thereof are moved toward the rear housing 90 by means of the swash plate 40, such that the refrigerant gas that flows into the front and rear housings 80 and 90 through a manifold 96 having a suction muffler 94 and a discharge muffler 95 is delivered to compression chambers 81 and 91 that are defined at the inner side walls of the front and rear housings 80 and 90.
  • the refrigerant gas compressed herein is carried into the rear housing 90 through a prescribed passageway and mixed with the compressed refrigerant gas discharged from the rear housing 90, thereby being discharged toward the outside of the compressor.
  • the compression chamber 81 in which the compressed refrigerant gas is stored is defined at the central portion in the inner face of the front housing 80, and the pair of cylinder blocks 10 and 20 are provided with guide holes 11 and 21 that are disposed at predetermined positions thereon to correspond with each other, with a result that they serve to guide the refrigerant gas in the compression chamber 81 to the compression chamber 91 defined in the rear housing 90.
  • the rear housing 90 is provided with the compression chamber 91 that is disposed at the central portion in the inner face thereof and with a discharge passageway 92 that is extended curvedly along the outer peripheral wall of the compression chamber 91 for connection with a discharge chamber 93, for guiding the compressed refrigerant gas to the outside through a hole H.
  • the plurality of pistons 50 reciprocate such that the refrigerant gas is compressed in the compression chambers 81 and 91 of the front and rear housings 80 and 90, respectively.
  • the refrigerant gas compressed in the compression chamber 81 of the front housing 80 is delivered to the discharge chamber 93 of the rear housing 90 through the guide holes 11 and 21 on the cylinder blocks 10 and 20, and the refrigerant gas compressed in the compression chamber 91 of the rear housing 90 is also delivered to the discharge chamber 93 through the discharge passageway 92, such that they are mixed in the discharge chamber 93 and discharged to the outside through an outlet port 94.
  • the discharge passageway 92 that is adapted to discharge the compressed refrigerant gas in the rear housing 90 to the outside is separately defined in a generally semicircular shape at one side of the compression chamber 91, the upper opening at the other side of the compression chamber 91 must be closed by anti-leaking means such as a gasket. Further, there is a need for installation of separate parts for sealing the discharge passageway, which requires complexity in construction of the compressor.
  • the narrow and long semicircular structure of the discharge passageway 92 become an obstacle in refrigerant gas flow, and eventually creates pressure loss.
  • a high pressure refrigerant gas collides against the inner peripheral wall of the discharge passageway 92, which undesirably causes the generation of noise due to the refrigerant gas pulsation.
  • the discharge passageway 92 occupies a certain area of the suction chamber so as to reduce the volume of the suction chamber, it covers partially the suction ports 72a which are placed above the discharge passageway 92 among the suction ports of the valve plate 72, and accordingly, the suction operation of the refrigerant gas is subject to a large resistance.
  • the formation of the separate discharge passageway 92 makes the construction of the compressor more complicated, and where any design modifications on the structure of the compression chamber 91 of the rear housing 90 occurs to improve it, the peripheral parts such as a gasket relating to the discharge passageway 92 must also be changed. Undesirably, this increases the number of processes for this and causes the production costs to be substantially high. Also, as the suction and discharge of the refrigerant gas are not smooth, the refrigerant gas discharge pressure is reduced and a noise due to the refrigerant gas pulsation occurs.
  • FIG. 5 is a front view of a rear housing of a compressor in the prior art.
  • a rear housing 100 is provided with a many-sided inner wall 101 projecting upwardly from the inside bottom surface thereof, an extended portion 102 formed extending from the inner wall 101 at a portion thereof, suction and discharge chambers 103 and 104 isolated from each other by the inner wall 101 and the inner peripheral wall of the rear housing 100, and a discharge conduit 106 for delivering the compressed refrigerant gas discharged into the discharge chamber 104 toward the outside of the compressor, the discharge conduit 106 extending by a certain length in the discharge chamber 104 at one end thereof and communicating with an outlet chamber 105 at the other end thereof.
  • the discharge conduit 106 of the rear housing 100 extends to about half of the straight distance L between a point B on an interior surface of the inner wall 101 and a point A connecting the extended portion 102, with reference to the center line of the discharge conduit 106.
  • the compressed refrigerant gas in the front housing and the compressed refrigerant gas in the rear housing are mixed in the outlet chamber 105 via the discharge conduit 106 so as to cancel two refrigerant gas pulsation waves with each other and then discharged into the outside of the compressor.
  • U.S. Pat. No. 3,785,751 to Nemoto et al discloses a silencing chamber formed on the cylindrical casing of a swash-plate-type compressor by means of a cover. In the compressor, the silencing action is obtained by a sudden change of volume of the compressed gas when the compressed gas enters into the silencing chamber.
  • U.S. Pat. No. 3,785,751 does not teach any additional action to suppress the pulsation in discharging pressure of the refrigerant gas.
  • U.S. Pat. No. 4,610,604 to Iwamori further discloses a multicylinder swash-plate-type compressor having a combined cylinder block closed on both axial ends by front and rear housing and provided therein with a reciprocative piston mechanism, for sucking, compressing, and discharging a refrigerant gas, and a connecting flange, from which the refrigerant gas after compression is sent out toward a cooling circuit.
  • the connecting flange defines a muffling chamber in cooperation with a circumferential section of the combined cylinder block for suppressing the pulsation in discharge pressure of the refrigerant gas.
  • the compressor further has a pair of mutually opposed gas outlets arranged adjacent to and downstream of the muffling chamber so that two streams of the refrigerant gas after compression collide, weakening the pulsation in the discharge pressure of the refrigerant gas.
  • the discharge passageways are arranged between two adjacent cylinder bores around the axis of the combined cylinder blocks and the muffling chamber is communicated with the front and rear discharge passageways by means of a pair of orifices so as to receive the refrigerant gas after compression discharged from the discharge passageways.
  • the discharge passageways are provided in the cylinder block not in the housing and the muffling chamber is provided in the cylinder block, the shape and/or volume of the muffling chamber cannot but be very narrowly limited due to the piston bores which occupy most of the sectional area of the block. Further, the circumferential thickness of fillets of the cylinder block defined between piston bores must be enough not to cause malfunction of the bore, otherwise the compressor is apt to be damaged during reciprocating movement of the piston at high speed and hot temperature.
  • the present invention is directed to a compressor that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a compressor that can effectively reduce a refrigerant gas pulsation pressure upon discharge of a refrigerant gas.
  • a compressor having a front housing closing one end of a front cylinder block; a rear housing closing one end of a rear cylinder block, the front and rear cylinder blocks arranged to be combined with each other between the front and rear housings; refrigerant gas inlet and outlet ports formed on the outer peripheral surface of at least any of the front and rear cylinder blocks; a front refrigerant gas suction chamber provided in the front housing so as to suck refrigerant gas from the inlet port; a rear refrigerant gas suction chamber provided in the rear housing so as to suck refrigerant gas from the inlet port; a front discharge chamber provided in the front housing so as to discharge refrigerant gas from the front housing to the refrigerant gas outlet port; a rear discharge chamber provided in the rear housing so as to discharge refrigerant gas from the rear housing to the refrigerant gas outlet port, and a first and a second partitions to isolate the front and the rear refrigerant gas suction chambers
  • the main expansion portion is formed extending an end of the discharge coupling passageway of the front cylinder block or the rear cylinder block, as an integral body in the front or rear cylinder block.
  • the main expansion portion is separately formed outside the front cylinder block or the rear cylinder block.
  • At least one or more the front and rear discharge conduits are positioned at shortest distances between the central portions of the front and rear refrigerant gas discharge chambers of the front and rear housings and the central portions of the inlet ends thereof.
  • At least one or more the front and rear auxiliary expansion portion have volumes larger than volumes of the front and rear discharge conduits.
  • At least one or more the discharge coupling passageways have passageway sectional areas larger than or the same as passageway sectional areas of the front and rear discharge conduits.
  • the main expansion portion has a volume larger than or the same as a sum of volumes of the front and rear auxiliary expansion portion.
  • At least one or more the front and rear discharge conduits communicate with the lower face of any of the front and rear auxiliary expansion portion.
  • At least one or more the front and rear discharge conduits have passageway sectional areas that become increased toward the outlets from the inlets thereof or become increased step by step.
  • a passageway length between the front discharge conduit of the front housing and the refrigerant gas outlet port is the same as a passageway length between the rear discharge conduit of the rear housing and the refrigerant gas outlet port.
  • FIG.1 is an exploded perspective view of a general compressor
  • FIG. 2 is a front sectional view of the compressor of FIG. 1;
  • FIG. 3 is a front view of a front housing of the compressor of FIG. 1;
  • FIG. 4 is a front view of a rear housing of the compressor of FIG. 1;
  • FIG. 5 is a front view of a rear housing of a compressor in the prior art
  • FIG. 6 is a side view of a compressor according to a first embodiment of the present invention.
  • FIG. 7 is a side sectional view of the compressor of FIG. 6;
  • FIG. 8 is a front view of a front housing employed in the compressor of FIG. 6;
  • FIG. 9 is a front view of a rear housing employed in the compressor of FIG. 6;
  • FIG. 10 is a side sectional view of a compressor according to a second embodiment of the present invention.
  • FIG. 6 is a side view of a compressor according to a first embodiment of the present invention
  • FIG. 7 is a side sectional view of the compressor of FIG. 6
  • FIG. 8 is a front view of a front housing employed in the compressor of FIG. 6
  • FIG. 9 is a front view of a rear housing employed in the compressor of FIG. 6.
  • the compressor comprises: a front housing 200 closing one end of a front cylinder block 400; a rear housing 300 closing one end of a rear cylinder block 500; the front and rear cylinder blocks 400 and 500 being arranged to be combined with each other between the front and rear housings 200 and 300; a drive shaft 600 rotatably supported in the central portions of the front and rear cylinder blocks 400 and 500; a swash plate 700 disposed on the drive shaft 600; and a plurality of pistons 900 operatively coupled with the outer peripheral surface of the swash plate 700 via piston shoes 800.
  • the front housing 200 is opened on the rear portion thereof, and it is provided with a front refrigerant gas suction chamber 210 for supplying a refrigerant gas flowing into the compressor to cylinder bores (not shown) on the front cylinder block 400 (see FIG. 7) and with a front refrigerant gas discharge chamber 220 for discharging the compressed refrigerant gas flowing from the cylinder bores toward the outside of the compressor, at the inner peripheral wall thereof (that is, at the inner face of the front wall thereof).
  • the front refrigerant gas suction chamber 210 is isolated from the front refrigerant gas discharge chamber 220, by means of a partition 230 that is formed in a shape of a generally closed curve, at the outer face of the front refrigerant gas discharge chamber 220.
  • a pulley (not shown) that is rotatably mounted via bearings (not shown) and a nose portion 202 (see FIG. 8) through which the drive shaft 600 is passed is projected rotatably supporting the drive shaft 600.
  • the rear housing 300 is opened on the front portion thereof and assembled with the rear cylinder block 500.
  • the rear housing 300 is provided with a rear refrigerant gas suction chamber 310 for supplying a refrigerant gas flowing into the compressor to cylinder bores (not shown) on the rear cylinder block 500 (see FIG. 7) and with a rear refrigerant gas discharge chamber 320 for discharging the compressed refrigerant gas flowing from the cylinder bores toward the outside of the compressor, at the inner peripheral wall thereof (that is, at the inner face of the rear wall thereof).
  • the rear refrigerant gas suction chamber 310 is isolated from the rear refrigerant gas discharge chamber 320, by means of a partition 330 that is formed in a shape of a generally closed curve, at the outer face of the rear refrigerant gas discharge chamber 320.
  • the front cylinder block 400 is provided with a discharge coupling passageway 410, and the rear cylinder block 500 with a discharge coupling passageway 510, the discharge coupling passageways 410 and 510 communicating with each other such that the refrigerant gas discharged from the front and rear housings 200 and 300 is discharged toward the refrigerant gas outlet port 530.
  • the discharge coupling passageway 410 is connected to front auxiliary expansion portion 250 of the front housing 200, and the discharge coupling passageway 510 to rear auxiliary expansion portion 350 of the rear housing 300.
  • the discharge coupling passageways 410 and 510 are extended at end portions thereof to thereby form the main expansion portion 420 in the front and rear cylinder blocks, as an integral body therewith.
  • the refrigerant gas inlet port 520 and the refrigerant gas outlet port 530 are positioned on the outer peripheral surface of the rear cylinder block 500, but may be positioned on the outer peripheral surface of the front cylinder block 400. Otherwise, if one of them is disposed on the outer peripheral surface of the front cylinder block 400, the other may be disposed on the outer peripheral surface of the rear cylinder block 500.
  • the swash plate 700 is also rotated together such that the plurality of pistons 900 are reciprocated in the respective cylinder bores of the front and rear cylinder blocks 400 and 500 in accordance with the phases of the swash plate 700.
  • a vacuum pressure is formed in the cylinder bores such that the refrigerant gas flows into a swash plate chamber S via the refrigerant gas inlet port 520 that is connected with an evaporator (which is omitted in the drawing).
  • the refrigerant gas that is introduced into the swash plate chamber S is sucked into the cylinder bores of the front and rear cylinder blocks 400 and 500, respectively.
  • the refrigerant gas sucked into the cylinder bores is compressed with the compression stroke of the pistons 900, it is discharged toward the front and rear refrigerant gas discharge chambers 220 and 320 of the front and rear housings 200 and 300 through an opening formed in the valve plate that is opened by means of a discharge reed valve and through an opening on a suction reed valve.
  • the refrigerant gas discharged from the front and rear housings 200 and 300 is carried via the discharge coupling passageways 410 and 510 of the front and rear cylinder blocks 400 and 500 into the refrigerant gas discharge port 530 through which the refrigerant gas is discharged toward the outside of the compressor.
  • the front and rear housings 200 and 300 are provided with the front and rear discharge conduits 240 and 340 that are formed extending from the front and rear refrigerant gas discharge chambers 220 and 320 to pass through the partitions 230 and 330, the front and rear discharge conduits 240 and 340 being provided with the auxiliary expansion portion 250 and 350 at the outlets thereof.
  • the refrigerant gas in the rear refrigerant gas discharge chamber 320 is carried into the discharge coupling passageway 510 of the rear cylinder block 500 via the rear discharge conduit 340 and the auxiliary expansion portion 350
  • the refrigerant gas in the front refrigerant gas discharge chamber 220 is carried into the discharge coupling passageway 410 of the front cylinder block 400 via the front discharge conduit 240 and the auxiliary expansion portion 250 and then passed through the main expansion portion 420 together with the refrigerant gas delivered from the discharge coupling passageway 510 of the rear cylinder block 500.
  • the refrigerant gas is discharged through the refrigerant gas discharge port 530 toward the outside of the compressor.
  • the refrigerant gas may stay at the lower ends of the auxiliary expansion portion 250 and 350 at the time when it is moved toward the discharge coupling passageways 410 and 510, thereby making it difficult to reduce the refrigerant gas pulsation pressure.
  • At least one or more the front and rear discharge conduits 240 and 340 of the front and rear housings 200 and 300 communicate with the lower faces of the auxiliary expansion portion 250 and 350 so as to prevent the refrigerant gas from staying in the auxiliary expansion portion.
  • the passageway length between the front discharge conduit 240 of the front housing 200 and the refrigerant gas discharge port 530 is the same as the passageway length between the rear discharge conduit 340 of the rear housing 300 and the refrigerant gas discharge port 530, with a result that the differences between the refrigerant gas pulsation pressures discharged from the front and rear housings 200 and 300 are substantially identical with one another, thereby decreasing the refrigerant gas pulsation pressure.
  • the volumes of the auxiliary expansion portion 250 and 350 are preferably larger than volumes of the front and rear discharge conduits 240 and 340. That is to say, the refrigerant gas delivered from the front and rear refrigerant gas discharge chambers 220 and 320 flows into the large volumes of auxiliary expansion portion 250 and 350 through the small volumes of front and rear discharge conduits 240 and 340, which enables the refrigerant gas pulsation pressure to be reduced.
  • At least one or more the front and rear discharge conduits 240 and 340 have passageway sectional areas that become increased toward the outlets from the inlets thereof or become increased step by step, and at least one or more the front and rear discharge conduits 240 and 340 are positioned at shortest distances L1 and L2 between the central portions of the front and rear refrigerant gas discharge chambers 220 and 320 of the front and rear housings 200 and 300 and the central portions of the inlet ends thereof.
  • the passageway sectional areas of the front and rear discharge conduits 240 and 340 are larger than the passageway sectional areas of the discharge coupling passageways 410 and 510, the amount of the refrigerant gas flowing into the front and rear auxiliary expansion portion 250 and 350 becomes larger than that flowing therefrom such that the refrigerant gas stays in the front and rear auxiliary expansion portion 250 and 350.
  • the passageway sectional areas of the discharge coupling passageways 410 and 510 are larger than or the same as the passageway sectional areas of the front and rear discharge conduits 240 and 340.
  • the main expansion portion 420 has a volume larger than or the same as a sum of volumes of the front and rear auxiliary expansion portion 250 and 350 so as to prevent the refrigerant gas from staying in the front and rear auxiliary expansion portion 250 and 350.
  • the refrigerant gas pulsation pressure is reduced in multi-step when the refrigerant gas is discharged into the rear refrigerant gas discharge chamber 320 toward the outside of the compressor and into the front refrigerant gas discharge chamber 220 toward the outside of the compressor, thereby obtaining excellent reduction in the refrigerant gas pulsation pressure.
  • FIG. 10 is a side sectional view of a compressor according to a second embodiment of the present invention.
  • the construction and action of the compressor are the same as those in the first embodiment of the present invention, except that the main expansion portion 410 is connected to the front and rear discharge coupling passageways 410 and 510 in the front and rear cylinder blocks 400 and 500, separately formed on the outer peripheral surface of the front cylinder block 400 or the rear cylinder block 500.
  • a size of the main expansion portion 420 is substantially smaller than that of a conventional manifold or a discharge muffler, thereby enabling the package of the compressor to be reduced.
  • While the preferred embodiments of the present invention are applied to the construction of the compressor where the front and rear housings 200 and 300 are combined with one another in such a manner where the ends of the front and rear cylinder blocks 400 and 500 are closed by the front and rear housings 200 and 300, they can be applied in the same manner as that of the compressor where the front and rear cylinder blocks 400 and 500 are disposed and assembled inside the front and rear housings 200 and 300.
  • a compressor according to the preferred embodiments of the present invention can reduce the refrigerant gas pulsation pressure in multi-step when a refrigerant gas is discharged into the rear refrigerant gas discharge chamber toward the outside of the compressor and into the front refrigerant gas discharge chamber toward the outside of the compressor, thereby obtaining excellent reduction in the refrigerant gas pulsation pressure and remarkably reducing a noise due to the refrigerant gas pulsation.
  • the compressor of this invention can be compact in the size of the package.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (10)

  1. Compresseur présentant un boîtier avant (200) fermant une extrémité d'un bloc-cylindres avant (400); un boîtier arrière (300) fermant une extrémité d'un bloc-cylindres arrière (500), les blocs-cylindres avant et arrière (400, 500) étant agencés pour être combinés l'un avec l'autre entre les boîtiers avant et arrière (200, 300); des orifices d'entrée et de sortie de gaz réfrigérant (520, 530) ménagés dans la surface périphérique extérieure d'au moins l'un quelconque des blocs-cylindres avant et arrière (400, 500);
    une chambre d'aspiration de gaz réfrigérant avant (210) réalisée dans le boîtier avant (200) pour aspirer le gaz réfrigérant de l'orifice d'entrée (520); une chambre d'aspiration de gaz réfrigérant arrière (310) réalisé dans le boîtier arrière (300) pour aspirer le gaz réfrigérant de l'orifice d'entrée (520);
    une chambre d'évacuation avant (220) réalisée dans le boîtier avant (200) pour évacuer le gaz réfrigérant du boîtier avant (200) vers l'orifice de sortie de gaz réfrigérant (530); une chambre d'évacuation arrière (320) réalisée dans le boîtier arrière (300) pour évacuer le gaz réfrigérant du boîtier arrière (300) vers l'orifice de sortie de gaz réfrigérant (530),
    et des première et seconde séparations (230, 330) pour isoler les chambres d'aspiration de gaz réfrigérant avant et arrière (210, 310) des chambres d'évacuation de gaz réfrigérant avant et arrière (220, 320), respectivement,
    caractérisé en ce que
    le compresseur comprend en outre: une portion d'expansion auxiliaire avant et arrière (250, 350) réalisée dans les boîtiers avant et arrière (200, 300), respectivement;
    un passage de couplage d'évacuation (410, 510) disposé dans les blocs-cylindres avant et arrière respectivement de manière à relier les première et seconde portions d'expansion (250, 350) aux orifices de sortie de gaz réfrigérant (530);
    des conduits d'évacuation avant et arrière (240, 340) réalisés dans le boîtier avant et le boîtier arrière respectivement de manière à passer à travers les première et seconde séparations (230) à l'intérieur des chambres d'évacuation de gaz réfrigérant avant et arrière (220, 320) respectivement, en amenant ainsi le gaz réfrigérant relâché dans les chambres d'évacuation de gaz réfrigérant avant et arrière (220, 320) des boîtiers avant et arrière (200, 300) vers les première et seconde portions d'expansion auxiliaires (250, 350) respectivement;
    et une portion d'expansion principale (420) réalisée entre les passages de couplage d'évacuation (410, 510) de manière à communiquer avec l'orifice de sortie de gaz réfrigérant (530).
  2. Compresseur selon la revendication 1, où la portion d'expansion principale (420) est formée en étendant une extrémité du passage de couplage d'évacuation du bloc-cylindres avant (400) ou du bloc-cylindres arrière (500), comme un corps intégral dans le bloc-cylindres avant ou arrière.
  3. Compresseur selon la revendication 1, où la portion d'expansion principale (420) est formée à l'extérieur du bloc-cylindres avant (400) ou du bloc-cylindres arrière (500).
  4. Compresseur selon la revendication 1, où au moins un ou plusieurs conduits d'évacuation avant et arrière (240, 340) sont positionnés aux distances les plus courtes entre les portions centrales des chambres d'évacuation de gaz réfrigérant avant et arrière (220, 320) des boîtiers avant et arrière (200, 300) et les portions centrales de leurs extrémités d'admission.
  5. Compresseur selon la revendication 1, où au moins une ou plusieurs portions d'expansion auxiliaires avant et arrière (250, 350) ont des volumes plus grands que les volumes des conduits d'évacuation avant et arrière (240, 340) .
  6. Compresseur selon la revendication 1, où au moins un ou plusieurs passages de couplage d'évacuation (410,510) ont des zones de passage en section plus grandes ou identiques aux zones de passage en section des conduits d'évacuation avant et arrière (240, 340).
  7. Compresseur selon la revendication 1, où la portion d'expansion principale (420) a un volume supérieur ou égal à une somme de volumes des portions d'expansion auxiliaires avant et arrière (250, 350).
  8. Compresseur selon la revendication 1, où au moins un ou plusieurs conduits d'évacuation avant et arrière (240, 340) communiquent avec la face inférieure d'une quelconque des portions d'expansion auxiliaires avant et arrière (250, 350).
  9. Compresseur selon la revendication 1, où au moins un ou plusieurs conduits d'évacuation avant et arrière (240, 340) ont des zones de passage en section qui augmentent vers les sorties depuis leurs entrées ou qui augmentent pas-à-pas.
  10. Compresseur selon la revendication 1, où une longueur de passage entre le conduit d'évacuation avant (240) du boîtier avant (200) et l'orifice de sortie de gaz réfrigérant (530) est la même qu'une longueur de passage entre le conduit d'évacuation arrière (340) du boîtier arrière (300) et l'orifice de sortie (530) du gaz réfrigérant.
EP04003502A 2003-02-18 2004-02-17 Compresseur Expired - Fee Related EP1450043B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030009992A KR100659570B1 (ko) 2003-02-18 2003-02-18 압축기
KR2003009992 2003-02-18

Publications (3)

Publication Number Publication Date
EP1450043A2 EP1450043A2 (fr) 2004-08-25
EP1450043A3 EP1450043A3 (fr) 2005-10-19
EP1450043B1 true EP1450043B1 (fr) 2007-12-05

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US (1) US20040161346A1 (fr)
EP (1) EP1450043B1 (fr)
JP (1) JP3921522B2 (fr)
KR (1) KR100659570B1 (fr)
CN (1) CN100543305C (fr)
DE (1) DE602004010443T2 (fr)

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KR101184577B1 (ko) * 2005-07-25 2012-09-21 한라공조주식회사 압축기
KR101172693B1 (ko) 2005-07-25 2012-08-09 한라공조주식회사 압축기
JP4663462B2 (ja) * 2005-09-21 2011-04-06 サンデン株式会社 往復動圧縮機
KR100872478B1 (ko) * 2006-06-15 2008-12-05 한국델파이주식회사 양방향 사판식 압축기의 냉매 내부 토출구조
KR101058652B1 (ko) 2008-09-25 2011-08-22 한라공조주식회사 압축기
KR101221311B1 (ko) 2010-09-13 2013-01-10 한라공조주식회사 사판식 압축기
CN101943153B (zh) * 2010-09-15 2012-07-04 奉化市华南汽车空调配件有限公司 分体式汽车空调压缩机
JP3168382U (ja) * 2011-03-30 2011-06-09 株式会社ヴァレオジャパン 往復動式圧縮機
JP6164135B2 (ja) 2014-03-27 2017-07-19 株式会社豊田自動織機 圧縮機
CN103994047B (zh) * 2014-05-26 2016-09-07 合肥达因汽车空调有限公司 一种旋转斜盘式压缩机
JP2016053321A (ja) * 2014-09-03 2016-04-14 サンデンホールディングス株式会社 圧縮機
CN108361178B (zh) * 2018-03-26 2024-07-02 安徽达因汽车空调有限公司 一种油气分离式降噪旋转斜盘式压缩机
CN113550801B (zh) * 2021-08-17 2023-07-25 南京久鼎环境科技股份有限公司 一种带透平膨胀机构的co2制冷活塞压缩机

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JPH10103228A (ja) * 1996-09-30 1998-04-21 Toyota Autom Loom Works Ltd 両頭ピストン式圧縮機
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Publication number Publication date
US20040161346A1 (en) 2004-08-19
KR20040074382A (ko) 2004-08-25
JP2004251282A (ja) 2004-09-09
KR100659570B1 (ko) 2006-12-19
JP3921522B2 (ja) 2007-05-30
CN100543305C (zh) 2009-09-23
EP1450043A3 (fr) 2005-10-19
DE602004010443T2 (de) 2008-11-27
EP1450043A2 (fr) 2004-08-25
DE602004010443D1 (de) 2008-01-17
CN1526951A (zh) 2004-09-08

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