KR20160041128A - Variable Displacement Swash Plate Type Compressor - Google Patents

Variable Displacement Swash Plate Type Compressor Download PDF

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Publication number
KR20160041128A
KR20160041128A KR1020140134293A KR20140134293A KR20160041128A KR 20160041128 A KR20160041128 A KR 20160041128A KR 1020140134293 A KR1020140134293 A KR 1020140134293A KR 20140134293 A KR20140134293 A KR 20140134293A KR 20160041128 A KR20160041128 A KR 20160041128A
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South Korea
Prior art keywords
chamber
swash plate
crank chamber
refrigerant
valve
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KR1020140134293A
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Korean (ko)
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이건호
박상호
성연학
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학교법인 두원학원
주식회사 두원전자
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Priority to KR1020140134293A priority Critical patent/KR20160041128A/en
Publication of KR20160041128A publication Critical patent/KR20160041128A/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
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • 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
    • F04B27/1009—Distribution members
    • F04B27/1018—Cylindrical distribution members
    • 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
    • F04B27/1045—Cylinders
    • 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
    • F04B27/1054—Actuating elements
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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

Abstract

The present invention relates to a capacity-changeable swash plate type compressor. More specifically, the compressor includes: a Pd-Pc connection hole formed on a cylinder block to connect a crank chamber with a discharge chamber, and moving a refrigerant from the crank chamber to the discharge chamber as a capacity control valve in a rear housing is operated; a regular connection hole formed along the inner center of an operating shaft to connect the crank chamber with an absorbing chamber, and regularly moving the refrigerant in the crank chamber to the absorbing chamber; and a changeable connection hole formed to connect the crank chamber and the absorbing chamber with the cylinder block around the operating shaft including the regular connection hole, and moving the refrigerant in the crank chamber to the absorbing chamber by being selectively opened and closed by the operation of the capacity control valve. Therefore, the capacity-changeable swash plate type compressor is capable of increasing a discharge amount of Pc-Ps when compared with a conventional compressor, thereby eliminating an operation delay. In addition, the capacity-changeable swash plate type compressor is capable of reducing power consumption of the compressor and quickly driving a swash plate at a maximum angle by regulating the refrigerant, provided from the crank chamber to the absorbing chamber, by the operation of the compressor (initial operation, maximum operation, and swash plate changeable operation) by using the changeable connection hole opened and closed by the movement of a CS pin valve.

Description

용량 가변형 사판식 압축기{Variable Displacement Swash Plate Type Compressor}[0001] The present invention relates to a variable displacement swash plate type compressor,

본 발명은 용량 가변형 사판식 압축기에 관한 것으로, 더욱 상세하게는 압축기의 초기 구동 및 최대 운전시에 크랭크실에서 흡입실로 유동하는 냉매토출유량을 증가시키며, 가변 운전시에 크랭크실에서 흡입실로 유동하는 냉매토출유량을 줄이는 밸브를 부과한 용량 가변형 사판식 압축기에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable displacement swash plate type compressor, and more particularly, to a variable displacement swash plate type compressor which increases a refrigerant discharge flow rate flowing from a crankcase to a suction chamber during initial operation and maximum operation of a compressor, To a variable displacement swash plate compressor in which a valve for reducing the refrigerant discharge flow rate is applied.

자동차용 공조장치의 냉방 시스템에 포함되는 압축기는 벨트를 통해 엔진에 직접 연결되어 있기 때문에 회전수를 제어할 수 없다.The number of revolutions can not be controlled because the compressor included in the cooling system of the air conditioner for an automobile is directly connected to the engine through the belt.

따라서 근래에는 엔진의 회전수에 의해 규제되는 경우 없이 냉방 능력을 얻기 위해 냉매의 토출량을 변화시킬 수 있는 용량 가변형 압축기가 많이 사용되고 있다.Therefore, in recent years, a capacity variable compressor capable of changing the discharge amount of the refrigerant to obtain the cooling capacity without being regulated by the revolution number of the engine has been widely used.

용량 가변형 압축기로는 사판식, 로터리식 및 스크롤식 등 다양한 종류가 개시되어 있다.As the capacity variable type compressor, various types such as swash plate type, rotary type, and scroll type are disclosed.

이 중 사판식 압축기는 크랭크실 내에서 경사각이 가변되도록 설치된 사판이 회전축의 회전운동에 따라 회전하고, 상기 사판의 회전운동에 의해 피스톤이 왕복 운동하는 방식으로 되어 있다. In the swash plate type compressor, a swash plate installed to vary the inclination angle in the crank chamber rotates in accordance with the rotational motion of the rotary shaft, and the piston reciprocates by the rotary motion of the swash plate.

이 경우 상기 피스톤의 왕복운동에 의해 흡입실의 냉매가 실린더 내에 흡입되어 압축된 후 토출실로 배출되는데, 상기 크랭크실 내의 압력과 실린더 내의 압력 차이에 따라 사판의 경사각이 변화하여 냉매의 토출량이 조절되게 된다.In this case, the refrigerant in the suction chamber is sucked into the cylinder by the reciprocating movement of the piston, and is compressed and discharged to the discharge chamber. The inclination angle of the swash plate changes according to the pressure in the crank chamber and the pressure difference in the cylinder, do.

특히 전자 솔레노이드식 용량제어밸브를 채택하여 통전에 의해 밸브를 개폐함으로써 크랭크실의 압력을 조정하고, 이를 통해 사판의 경사각을 조정하여 토출용량을 조절하게 되어 있다.Especially, by adopting an electromagnetic solenoid capacity control valve, the pressure of the crank chamber is adjusted by opening and closing the valve by energization, thereby adjusting the discharge capacity by adjusting the inclination angle of the swash plate.

한편 사판식 압축기를 구동하지 않은 상태로 장시간 방치하면 냉매가 액화하여 크랭크실에 고이게 되는데, 이와 같은 액상 냉매는 압축기의 초기 구동시에 증발하여 크랭크실의 압력을 높여서 사판의 경사각 형성을 지연시킬 수 있다.On the other hand, if the swash plate type compressor is left in a state where it is not driven for a long time, the refrigerant is liquefied and solidified in the crankcase. Such liquid refrigerant evaporates at the initial stage of the compressor to increase the pressure of the crankcase, .

이러한 문제점을 해결하기 위해, 통상 압축기 초기 구동시 크랭크실의 냉매를 흡입실로 배출하도록 크랭크실과 흡입실을 연결하는 CS홀이 구비된다.In order to solve such a problem, a CS hole is provided which connects the crank chamber and the suction chamber so as to discharge the refrigerant in the crank chamber to the suction chamber at the time of initial operation of the compressor.

선행기술로서 대한민국 공개특허 2011-21011호 '용량가변형 압축기'가 개시되어 있는데, 이를 살펴보면 용량 가변형 압축기는 다수의 실린더보어를 가지는 실린더블럭과, 상기 실린더블럭의 전방에 밀폐 결합된 전방하우징과, 상기 실린더블럭의 후방에 밀폐 결합된 후방하우징으로 구성된다.The capacity variable type compressor includes a cylinder block having a plurality of cylinder bores, a front housing hermetically coupled to the front of the cylinder block, And a rear housing hermetically coupled to the rear of the cylinder block.

또한 상기 전방하우징의 안쪽에는 크랭크실이 마련되며 상기 후방하우징의 내측으로 흡입실과 토출실이 형성된다.In addition, a crank chamber is provided on the inside of the front housing, and a suction chamber and a discharge chamber are formed inside the rear housing.

그리고 상기 실린더블럭에는 압축기 초기 구동시 크랭크실의 냉매를 흡입실로 배출하도록 CS홀이 형성된다.A CS hole is formed in the cylinder block to discharge the refrigerant in the crank chamber to the suction chamber at the time of initial operation of the compressor.

하지만 종래의 용량 가변형 압축기에 따른 밸브플래이트의 CS홀은 압축기의 용량 제어시(MAX 또는 가변운전) 사판이 수용되는 크랭크실의 압력을 조절하기 위한 크랭크실과 흡입실을 연통한 홀로 크랭크실에서 흡입실로 토출되는 유량이 고정되어 있고, 용량 제어시 용량제어밸브를 통해 토출실의 압력을 크랭크실에 공급하거나, 차단하여 크랭크실의 압력을 형성시켜 사판의 각을 제어한다. However, the CS hole of the valve plate according to the conventional capacity variable type compressor is a hole communicated between the crank chamber and the suction chamber for adjusting the pressure of the crank chamber accommodating the swash plate during the capacity control of the compressor (MAX or variable operation) And the pressure of the discharge chamber is supplied to the crank chamber through the capacity control valve during the displacement control or is shut off to form the pressure in the crank chamber to control the angle of the swash plate.

이때 크랭크실에서 흡입실로 토출되는 냉매토출유량이 고정되어 있어 압축기 초기 작동시에 작동지연이 발생하였고, 가변 제어시 일정한 소모 동력(압력)을 필요로 하여, 가변 제어시 동력(압력)이 손실되는 문제점이 발생하였다.
At this time, since the flow rate of the refrigerant discharged from the crank chamber to the suction chamber is fixed, an operation delay occurs during the initial operation of the compressor, a constant consumption power (pressure) is required in the variable control, A problem has occurred.

따라서 본 발명은 압축기의 초기 운전시 Pc-Ps의 토출량을 종래 대비 증대시켜 작동지연을 개선할 수 있고, CS핀밸브의 이동에 따라 개폐되는 가변연통홀을 이용하여, 압축기의 운전에 따라(초기구동, 최대 운전 및 사판 가변운전)에 따라 크랭크실에서 흡입실로 제공되는 냉매를 조절하여 신속한 사판의 최대각 운전과 압축기의 소모동력을 줄 일수 있는 용량 가변형 사판식 압축기를 제공하는 것을 그목적으로 한다.
Accordingly, the present invention can improve the operation delay by increasing the discharge amount of Pc-Ps during the initial operation of the compressor, and by using the variable communication hole which is opened or closed according to the movement of the CS pin valve, And to provide a variable displacement swash plate type compressor capable of reducing the power consumption of the compressor and the maximum angular operation of the swash plate by adjusting the refrigerant supplied from the crank chamber to the suction chamber in accordance with the drive, maximum operation, and swash plate variable operation .

본 발명에 따른 용량 가변형 사판식 압축기는 내부에 크랭크실이 구비되는 전방하우징과, 내부에 흡입실 및 토출실이 구비되는 후방하우징과, 복수개의 실린더보어가 형성된 실린더블럭과, 상기 전방하우징과 실린더블럭 중심에 회전 가능하게 지지되는 구동샤프트와, 상기 구동샤프트에 고정 설치된 러그플레이트와, 상기 러그플레이트에 의해서 회전운동하면서 경사각이 변할 수 있게 설치되는 사판과, 상기 사판의 회전에 의해서 상기 실린더보어 내에서 왕복이동이 가능하게 수용되는 피스톤이 포함되는데, 상기 실린더블럭에 크랭크실과 토출실을 연통하게 형성되어, 용량제어밸브의 구동에 따라 토출실에서 크랭크실로 냉매를 유동시키는 Pd-Pc연통홀과, 상기 구동샤프트의 내부를 따라 크랭크실과 흡입실을 연통하게 형성되어, 크랭크실의 냉매를 흡입실로 상시 유동시키는 상시연통홀 및 상기 상시연통홀이 형성된 구동샤프트를 중심으로 그 주변인 실린더블럭에 크랭크실과 흡입실을 연통하게 형성되어, 용량제어밸브의 구동에 따라 선택적으로 개폐되어 크랭크실의 냉매를 흡입실로 유동시키는 가변연통홀을 포함한다.The variable displacement swash plate compressor according to the present invention includes a front housing having a crank chamber therein, a rear housing having a suction chamber and a discharge chamber therein, a cylinder block having a plurality of cylinder bores formed therein, A lug plate fixed to the drive shaft; a swash plate rotatably driven by the lug plate so as to be able to change its inclination angle; and a swash plate rotatably supported on the cylinder bore by rotation of the swash plate, A Pd-Pc communication hole formed in the cylinder block so as to communicate with the crank chamber and the discharge chamber, the Pd-Pc communication hole allowing the refrigerant to flow from the discharge chamber to the crank chamber upon driving of the capacity control valve, The crank chamber is formed to communicate with the suction chamber along the inside of the drive shaft, And a cylinder block which is a periphery thereof around a drive shaft on which the normally communicating hole is formed. The crank chamber is selectively opened and closed in accordance with the drive of the capacity control valve, And a variable communication hole through which the refrigerant flows into the suction chamber.

이때 본 발명에 따른 상기 가변연통홀의 후방에는 상기 가변연통홀보다 내경이 큰 밸브홀을 연장 형성하고, 상기 밸브홀 내부에는 선택적으로 제공되는 크랭크실의 냉매 및 토출실의 냉매에 의해 상기 밸브홀을 따라 이동하여 상기 밸브홀을 개방 또는 폐쇄하는 CS핀밸브를 포함한다.At this time, a valve hole having an inner diameter larger than that of the variable communication hole is formed at the rear of the variable communication hole according to the present invention, and the refrigerant of the crank chamber and the refrigerant of the discharge chamber, And a CS pin valve that moves along and opens or closes the valve hole.

그리고 본 발명에 따른 상기 밸브홀의 전단과 상기 흡입실을 연통하게 형성되어, 상기 가변연통홀을 통해 전달된 냉매에 의해 상기 CS핀밸브가 이동하여 상기 밸브홀이 개방되면, 크랭크실의 냉매를 상기 가변연통홀을 통해 흡입실로 유동시키는 가변유로를 포함한다.When the CS pin valve is moved by the refrigerant transferred through the variable communication hole and the valve hole is opened, the refrigerant in the crank chamber is discharged to the outside through the variable communication hole, And a variable flow path that flows into the suction chamber through the variable communication hole.

또한 본 발명에 따른 Pd-Pc연통홀과 밸브홀의 후단을 연통하게 형성되어, 상기 밸브홀 내부에 구비된 CS핀밸브가 밸브홀을 따라 이동하여 밸브홀를 폐쇄하도록, 용량제어밸브의 구동에 따라 토출실의 냉매를 밸브홀로 유동시키는 슬롯을 포함한다.
And the CS pin valve provided in the valve hole moves along the valve hole to close the valve hole so that the Pd-Pc communication hole according to the present invention is communicated with the rear end of the valve hole, And a slot through which the refrigerant in the chamber flows to the valve hole.

본 발명에 따른 용량 가변형 사판식 압축기는 다음과 같은 효과를 가진다.The variable displacement swash plate compressor according to the present invention has the following effects.

첫째, 압축기의 초기 운전시 Pc-Ps의 토출량을 종래 대비 증대시켜 작동지연을 개선할 수 있는 효과를 가진다.First, the operation delay of the compressor can be improved by increasing the discharge amount of Pc-Ps compared with the conventional one.

둘째, CS핀밸브의 이동에 따라 개폐되는 가변연통홀을 이용하여, 압축기의 운전에 따라(초기구동, 최대 운전 및 사판 가변운전)에 따라 크랭크실에서 흡입실로 제공되는 냉매를 조절하여 신속한 사판의 최대각 운전과 압축기의 소모동력을 줄 일수 있는 효과를 가진다.Second, by using the variable communication hole which is opened or closed according to the movement of the CS pin valve, the refrigerant supplied from the crank chamber to the suction chamber is controlled according to the operation of the compressor (initial drive, maximum operation and swash plate variable operation) It is possible to reduce the power consumption of the compressor and the maximum operation.

도 1은 본 발명에 따른 용량 가변형 사판식 압축기의 구성을 보인 예시도이다.
도 2는 본 발명에 따른 용량 가변형 사판식 압축기가 가변운전함에 크랭크실(Pc)-흡입실(Ps) 냉매의 토출용량이 최소로 제공되는 상태를 보인 예시도이다.
도 3은 본 발명에 따른 용량 가변형 사판식 압축기가 초기구동 및 최대 운전함에 크랭크실(Pc)-흡입실(Ps) 냉매의 토출용량이 최대로 제공되는 상태를 보인 예시도이다.
도 4는 본 발명에 따른 슬롯의 구성예를 보인 예시도이다.1 is an exemplary view showing a configuration of a variable displacement swash plate type compressor according to the present invention.
FIG. 2 is an exemplary view showing a state in which a discharge capacity of a crank chamber Pc-suction chamber (Ps) refrigerant is minimized in a variable operation mode of the variable displacement swash plate type compressor according to the present invention.
FIG. 3 is an exemplary diagram showing a state in which the discharge capacity of the crank chamber Pc-suction chamber (Ps) refrigerant is maximally provided in initial operation and maximum operation of the variable displacement swash plate type compressor according to the present invention.
4 is an exemplary view showing a configuration example of a slot according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

따라서 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들은 대체할 수 있는 균등한 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

본 발명은 압축기의 초기 구동 및 최대 운전시에 크랭크실에서 흡입실로 유동하는 냉매토출유량을 증가시키며, 가변 운전시에 크랭크실에서 흡입실로 유동하는 냉매토출유량을 줄이는 밸브를 부과한 용량 가변형 사판식 압축기에 관한 것으로, 도면을 참조하여 그 구성을 보다 상세하게 살펴보면 다음과 같다.The present invention relates to a variable displacement swash plate type compressor which increases a refrigerant discharge flow rate flowing from a crank chamber to a suction chamber at the time of initial operation and maximum operation of a compressor and which implements a valve for reducing a refrigerant discharge flow rate flowing from a crank chamber to a suction chamber during variable operation The compressor will now be described in more detail with reference to the drawings.

본 발명에 따른 용량 가변형 사판식 압축기는 도 1에 도시한 바와 같이 내주면에 길이방향을 따라 평행하게 형성된 다수의 실린더보어(11)를 가지는 실린더블럭(10)과, 상기 실린더블럭(10)의 전방에 밀폐 결합된 전방하우징(20)과, 상기 실린더블럭(10)의 후방에 밸브플레이트(31)를 개재하여 밀폐 결합된 후방하우징(30)으로 구성한다.1, the variable displacement swash plate type compressor according to the present invention includes a cylinder block 10 having a plurality of cylinder bores 11 formed on an inner circumferential surface of the cylinder block 10 in parallel along the longitudinal direction thereof, And a rear housing 30 hermetically coupled to the rear of the cylinder block 10 via a valve plate 31. The front housing 20 is hermetically coupled to the cylinder block 10,

이때 상기 전방하우징(20)의 안쪽에는 크랭크실(Pc)이 마련되며, 전방하우징(20)의 중심 부근에는 구동샤프트(40)의 일단이 회전가능하게 지지되는 한편, 상기 구동샤프트(40)의 타단은 상기 크랭크실(Pc)을 통과하여 실린더블럭(10)에 설치된 베어링을 매개로 하여 지지된다.At this time, a crank chamber Pc is provided on the inside of the front housing 20, and one end of the drive shaft 40 is rotatably supported near the center of the front housing 20, And the other end is supported via a bearing provided in the cylinder block 10 through the crank chamber Pc.

또한 상기 크랭크실(Pc)의 내부에 위치한 구동샤프트(40) 둘레에는 러그플레이트(50)와 사판(60)을 설치한다.A lug plate (50) and a swash plate (60) are installed around the drive shaft (40) located in the crank chamber (Pc).

상기 러그플레이트(50)에는 중앙부에 가이드홈이 각각 직선 천공된 한쌍의 동력전달용 지지암이 일면에 일체로 돌출되게 형성되어 있고, 상기 사판(60)의 일면에는 핀에 의해 롤러가 부착되어, 상기 러그플레이트(50)가 회전함에 따라 상기 사판(60)의 롤러가 러그플레이트(50)의 가이드홀 내에서 슬라이딩 이동하면서 사판(60)의 경사각이 가변된다.The lug plate 50 is formed with a pair of power transmission support arms integrally protruding from the center thereof with guide grooves formed in a straight line. A roller is attached to one surface of the swash plate 60 by a pin, As the lug plate 50 rotates, the roller of the swash plate 60 slides in the guide hole of the lug plate 50, and the inclination angle of the swash plate 60 varies.

그리고 상기 사판(60)의 외주면은 슈를 개재하여 각각의 피스톤(12)에 미끄럼이동이 가능하게 끼워진다.The outer circumferential surface of the swash plate (60) is slidably engaged with each piston (12) through a shoe.

따라서 상기한 구성에 의해 상기 사판(60)이 경사된 상태에서 회전함에 따라, 그 외주면에 슈를 개재하여 끼워진 피스톤(12)들은 상기 실린더블럭(10)의 각 실린더보어(11) 내에서 왕복 운동하게 된다.Accordingly, as the swash plate 60 rotates in an inclined state, the pistons 12, which are fitted to the outer circumferential surface of the swash plate 60 through the shoe, are reciprocated in the respective cylinder bores 11 of the cylinder block 10, .

그리고, 상기 후방하우징(30)에는 흡입실(Ps)과 토출실(Pd)이 각각 형성되어 있고, 후방하우징(30)과 실린더블럭(10) 사이에 개재되는 밸브플레이트(31)에는 각각의 실린더보어(11)에 대응하는 곳에 흡입구와 토출구가 각각 형성되어 있다.A valve plate 31 interposed between the rear housing 30 and the cylinder block 10 is provided with a suction chamber Ps and a discharge chamber Pd respectively formed in the rear housing 30, And a suction port and a discharge port are respectively formed at positions corresponding to the bores 11. [

상기 피스톤(12)의 왕복운동에 의해 흡입실(Ps)의 냉매가 실린더보어(11) 내에 흡입되어 압축된 후 토출실(Pd)로 배출되는데, 상기 크랭크실(Pc) 내의 압력과 실린더보더(11) 내의 압력 차이에 따라 사판(60)의 경사각이 변화하여 냉매의 토출량이 조절된다.The refrigerant in the suction chamber Ps is sucked into the cylinder bore 11 by the reciprocating movement of the piston 12 and is compressed and discharged to the discharge chamber Pd. The pressure in the crank chamber Pc and the pressure in the cylinder bore 11, the inclination angle of the swash plate 60 changes and the discharge amount of the refrigerant is adjusted.

더욱 구체적으로 본 발명의 실시 예에서 채택된 용량 가변형 사판식 압축기는 상기 토출실(Pd)과 크랭크실(Pc)을 연결하는 Pd-Pc연통홀(13)에 전자 솔레노이드식 용량제어밸브(도시하지 않음)를 설치하여 통전에 의해 용량제어밸브를 개폐함으로써, 상기 Pd-Pc연통홀(13)를 통해 토출실(Pd)의 냉매가 크랭크실(Pc)로 유입되어, 상기 크랭크실(Pc)의 압력이 조정되고, 이를 통해 사판(60)의 경사각을 조정하여 토출 용량을 조절하는 방식으로 되어 있으며, 이러한 구성은 압축기에 모두 적용이 가능하다.More specifically, the capacity variable swash plate type compressor adopted in the embodiment of the present invention is provided with an electromagnetic solenoid capacity control valve (not shown) in the Pd-Pc communication hole 13 connecting the discharge chamber Pd and the crank chamber Pc The refrigerant in the discharge chamber Pd flows into the crank chamber Pc through the Pd-Pc communication hole 13 and flows into the crank chamber Pc through the Pd-Pc communication hole 13, The pressure is adjusted and the discharge capacity is adjusted by adjusting the inclination angle of the swash plate 60. This configuration is applicable to the compressor.

그리고 상기 구동샤프트(40)의 내부 중심을 따라 크랭크실(Pc)과 흡입실(Ps)을 연통하게 상시연통홀(41)을 형성하고, 상기 상시연통홀(41)은 크랭크실(Pc)의 냉매를 흡입실(Ps)로 상시 유동시킨다.The communication holes 41 are formed in the crank chamber Pc so as to communicate the crank chamber Pc and the suction chamber Ps along the inner center of the drive shaft 40, The refrigerant is constantly flowed into the suction chamber Ps.

또한 상기 상시연통홀(41)의 끝단에는 오리피스(42)를 형성하여 냉매의 유동량을 최소가 이루어지도록 하는 것이 바람직하고, 상기 상시연통홀(41)이 형성된 구동샤프트(40)를 중심으로 그 주변인 실린더블럭(10)에 크랭크실(Pc)과 흡입실(Ps)을 연통하게 가변연통홀(14)을 형성하고, 상기 가변연통홀(14)은 용량제어밸브의 구동에 따라 선택적으로 개폐되어 크랭크실(Pc)의 냉매를 흡입실(Ps)로 유동시킨다.It is preferable that an orifice 42 is formed at the end of the normal communication hole 41 to minimize the flow amount of the refrigerant and the periphery of the driving shaft 40 having the constant communication hole 41 A variable communication hole 14 is formed in the cylinder block 10 so as to communicate the crank chamber Pc and the suction chamber Ps and the variable communication hole 14 is selectively opened and closed in accordance with the drive of the capacity control valve, And the refrigerant in the chamber Pc flows into the suction chamber Ps.

이때 상기 가변연통홀(14)의 후방에는 상기 가변연통홀(14)보다 내경이 큰 밸브홀(15)을 연장 형성하고, 상기 밸브홀(15) 내부에는 선택적으로 제공되는 크랭크실(Ps)의 냉매 및 토출실(Pd)의 냉매에 의해 상기 밸브홀(15)을 따라 이동하는 CS핀밸브(16)를 구비하여, 선택적으로 상기 밸브홀(15)을 개방 또는 폐쇄한다.At this time, a valve hole (15) having an inner diameter larger than that of the variable communication hole (14) is formed at the rear of the variable communication hole (14), and a crank chamber And a CS pin valve 16 that moves along the valve hole 15 by the refrigerant of the refrigerant and the discharge chamber Pd to selectively open or close the valve hole 15. [

여기서 상기 밸브홀(15)의 전단과 상기 흡입실(Ps)을 연통하게 가변유로(17)를 형성하는데, 상기 가변유로(17)는 가변연통홀(14)을 통해 전달된 냉매에 의해 상기 CS핀밸브(16)가 이동하여 상기 밸브홀(15)이 개방되면, 크랭크실(Pc)의 냉매를 상기 가변연통홀(14)을 통해 흡입실(Ps)로 유동시킨다.The variable passage 17 is formed by connecting the front end of the valve hole 15 and the suction chamber Ps to the variable passage 17 via the variable communication hole 14, When the pin valve 16 moves and the valve hole 15 is opened, the refrigerant in the crank chamber Pc flows into the suction chamber Ps through the variable communication hole 14.

그리고 도 4에 도시한 바와 같이 상기 Pd-Pc연통홀(13)과 밸브홀(15)의 후단을 연통하게 슬롯(32)을 형성하는데, 상기 슬롯(32)은 상기 밸브홀(15) 내부에 구비된 CS핀밸브(16)가 밸브홀(15)을 따라 이동하여 밸브홀(15)을 폐쇄하도록, 용량제어밸브의 구동에 따라 토출실(Pd)의 냉매를 밸브홀(15)로 유동시킨다.4, a slot 32 is formed to communicate the Pd-Pc communication hole 13 with the rear end of the valve hole 15. The slot 32 is formed in the valve hole 15 The refrigerant in the discharge chamber Pd flows into the valve hole 15 in accordance with the drive of the capacity control valve so that the CS pin valve 16 provided moves along the valve hole 15 to close the valve hole 15 .

도 4에서는 상기 Pd-Pc연통홀(13)이 실린더보어 내측방향에 위치한 것을 도시하나, 이에 한정하지 않고 실린더보어 외측방향에 위치하도록 할 수도 있다.In FIG. 4, the Pd-Pc communication hole 13 is located inside the cylinder bore, but the present invention is not limited thereto and the cylinder may be located outside the cylinder bore.

상기한 구성에 따른 실시를 도면을 참조하여 살펴보면 다음과 같다. Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

먼저 본 발명에 따른 용량 가변형 사판식 압축기의 가변 운전시나, 사판 최소각 운전시, 도 2에 도시한 바와 같이 용량제어밸브에 의해 Pd-Pc연통홀(13)이 개방되고, 이때 토출실(Pd)의 냉매는 Pd-Pc연통홀(13)과 연결된 슬롯(32)을 통해 CS핀밸브(16)로 전달되어, 상기 CS핀밸브(16)가 냉매의 압축반력(Pd압력)에 의해 상기 밸브홀(15)을 따라 가변연통홀(14)이 닫히는 방향으로 이동하여 가변연통홀(14)이 폐쇄되어, 크랭크실(Pc)-흡입실(Ps) 냉매 토출용량이 최소가 된다. 2, the Pd-Pc communication hole 13 is opened by the capacity control valve at the time of variable operation of the variable displacement swash plate compressor according to the present invention or during the swash plate minimum angle operation. At this time, Is transmitted to the CS pin valve 16 through the slot 32 connected to the Pd-Pc communication hole 13 so that the CS pin valve 16 is driven by the compression reaction force (Pd pressure) The variable communication hole 14 is closed along the hole 15 and the variable communication hole 14 is closed so that the refrigerant discharge capacity of the crank chamber Pc-suction chamber Ps is minimized.

그리고 본 발명에 따른 용량 가변형 사판식 압축기의 사판각 최대 운전시 및 초기 구동시에는 도 3에 도시한 바와 같이 용량제어밸브에 의해 Pd-Pc연통홀(13)이 폐쇄가 되고, 이때 크랭크실의 냉매가 가변연통홀(14)을 통해 CS핀밸브(16)로 전달되어, 상기 CS핀밸브(16)가 냉매에 의해 상기 밸브홀(15)을 따라 가변연통홀(14)을 개방하는 방향으로 이동하여 가변연통홀(14)이 개방되어, 크랭크실(Pc)의 냉매가 상기 밸브홀(15)과 가변유로(17)를 따라 흡입실(Ps)로 유동되어, 크랭크실(Pc)-흡입실(Ps) 냉매 토출용량이 최대가 된다.As shown in FIG. 3, the Pd-Pc communication hole 13 is closed by the displacement control valve at the time of maximum swash plate operation and initial driving of the variable displacement swash plate type compressor according to the present invention, The refrigerant is delivered to the CS pin valve 16 through the variable communication hole 14 so that the CS pin valve 16 is moved in the direction of opening the variable communication hole 14 along the valve hole 15 by the refrigerant And the variable communication hole 14 is opened so that the refrigerant in the crank chamber Pc flows into the suction chamber Ps along the valve hole 15 and the variable flow path 17 to be introduced into the crank chamber Pc- (Ps) refrigerant discharge capacity becomes the maximum.

본 발명은 도면에 도시된 실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시 예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: 실린더블럭 11: 실린더보어
12: 피스톤 13: Pd-Pc연통홀
14: 가변연통홀 15: 밸브홀
16: CS핀밸브 17: 가변유로
20: 전방하우징 Pc: 크랭크실
30: 후방하우징 31: 밸브플레이트
32: 슬롯 Ps: 흡입실
Pd: 토출실 40: 구동샤프트
41: 상기연통홀 50: 러그플레이트
60: 사판10: Cylinder block 11: Cylinder bore
12: piston 13: Pd-Pc communication hole
14: Variable communication hole 15: Valve hole
16: CS pin valve 17: variable flow path
20: front housing Pc: crank chamber
30: rear housing 31: valve plate
32: Slot Ps: Suction chamber
Pd: discharge chamber 40: drive shaft
41: communicating hole 50: lug plate
60: Swash plate

Claims (4)

내부에 크랭크실이 구비되는 전방하우징과, 내부에 흡입실 및 토출실이 구비되는 후방하우징과, 복수개의 실린더보어가 형성된 실린더블럭과, 상기 전방하우징과 실린더블럭 중심에 회전 가능하게 지지되는 구동샤프트와, 상기 구동샤프트에 고정 설치된 러그플레이트와, 상기 러그플레이트에 의해서 회전운동하면서 경사각이 변할 수 있게 설치되는 사판과, 상기 사판의 회전에 의해서 상기 실린더보어 내에서 왕복이동이 가능하게 수용되는 피스톤이 포함되는 용량 가변형 사판식 압축기에 있어서,
상기 실린더블럭에 크랭크실과 토출실을 연통하게 형성되어, 용량제어밸브의 구동에 따라 토출실에서 크랭크실로 냉매를 유동시키는 Pd-Pc연통홀;
상기 구동샤프트의 내부를 따라 크랭크실과 흡입실을 연통하게 형성되어, 크랭크실의 냉매를 흡입실로 상시 유동시키는 상시연통홀; 및
상기 상시연통홀이 형성된 구동샤프트를 중심으로 그 주변인 실린더블럭에 크랭크실과 흡입실을 연통하게 형성되어, 용량제어밸브의 구동에 따라 선택적으로 개폐되어 크랭크실의 냉매를 흡입실로 유동시키는 가변연통홀;을 포함하는 용량 가변형 사판식 압축기.
A rear housing having a suction chamber and a discharge chamber therein, a cylinder block having a plurality of cylinder bores formed thereon, and a drive shaft rotatably supported at the center of the cylinder block, wherein the front housing includes a front housing having a crank chamber, A lug plate fixed to the drive shaft, a swash plate installed to be able to vary the tilt angle while being rotated by the lug plate, and a piston accommodated in the cylinder bore such that the swash plate reciprocates within the cylinder bore, In the included variable displacement swash plate compressor,
A Pd-Pc communication hole formed in the cylinder block so as to communicate with the crank chamber and the discharge chamber, the refrigerant flowing from the discharge chamber to the crank chamber in accordance with the drive of the displacement control valve;
A communication hole formed in the crank chamber so as to communicate with the crank chamber and the suction chamber along the inside of the drive shaft so that the coolant in the crank chamber always flows to the suction chamber; And
A variable communication hole formed to communicate with the crank chamber and the suction chamber in a cylinder block around the drive shaft provided with the normal communication hole and selectively opened and closed in accordance with the drive of the displacement control valve to flow the refrigerant in the crank chamber into the suction chamber; And a variable displacement swash plate compressor.
청구항 1에 있어서,
상기 가변연통홀의 후방에는
상기 가변연통홀보다 내경이 큰 밸브홀을 연장 형성하고, 상기 밸브홀 내부에는 선택적으로 제공되는 크랭크실의 냉매 및 토출실의 냉매에 의해 상기 밸브홀을 따라 이동하여 상기 밸브홀을 개방 또는 폐쇄하는 CS핀밸브를 포함하는 용량 가변형 사판식 압축기.
The method according to claim 1,
At the rear of the variable communication hole
A valve hole having an inner diameter larger than that of the variable communication hole is formed to extend along the valve hole by the refrigerant in the crank chamber and the refrigerant in the discharge chamber selectively provided in the valve hole to open or close the valve hole Variable swash plate compressor with CS pin valve.
청구항 2에 있어서,
상기 밸브홀의 전단과 상기 흡입실을 연통하게 형성되어, 상기 가변연통홀을 통해 전달된 냉매에 의해 상기 CS핀밸브가 이동하여 상기 밸브홀이 개방되면, 크랭크실의 냉매를 상기 가변연통홀을 통해 흡입실로 유동시키는 가변유로를 포함하는 용량 가변형 사판식 압축기.
The method of claim 2,
And the CS pin valve is moved by the refrigerant transferred through the variable communication hole to open the valve hole, the refrigerant in the crank chamber is communicated through the variable communication hole And a variable flow path that flows into the suction chamber.
청구항 2에 있어서,
상기 Pd-Pc연통홀과 밸브홀의 후단을 연통하게 형성되어, 상기 밸브홀 내부에 구비된 CS핀밸브가 밸브홀을 따라 이동하여 밸브홀를 폐쇄하도록, 용량제어밸브의 구동에 따라 토출실의 냉매를 밸브홀로 유동시키는 슬롯을 포함하는 용량 가변형 사판식 압축기.The method of claim 2,
And the CS pin valve provided in the valve hole moves along the valve hole so as to close the valve hole so that the refrigerant in the discharge chamber flows through the Pd-Pc communication hole and the rear end of the valve hole, A variable displacement swash plate compressor comprising a slot for flowing into a valve hole.
KR1020140134293A 2014-10-06 2014-10-06 Variable Displacement Swash Plate Type Compressor KR20160041128A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018151528A1 (en) * 2017-02-17 2018-08-23 한온시스템 주식회사 Swash plate type compressor
WO2020017917A1 (en) * 2018-07-19 2020-01-23 한온시스템 주식회사 Variable-capacity swash plate-type compressor
US11187219B2 (en) 2017-02-17 2021-11-30 Hanon Systems Swash plate type compressor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018151528A1 (en) * 2017-02-17 2018-08-23 한온시스템 주식회사 Swash plate type compressor
US11187219B2 (en) 2017-02-17 2021-11-30 Hanon Systems Swash plate type compressor
WO2020017917A1 (en) * 2018-07-19 2020-01-23 한온시스템 주식회사 Variable-capacity swash plate-type compressor
CN111656012A (en) * 2018-07-19 2020-09-11 翰昂汽车零部件有限公司 Variable capacity swash plate type compressor
US11286919B2 (en) 2018-07-19 2022-03-29 Hanon Systems Variable displacement swash plate type compressor
CN111656012B (en) * 2018-07-19 2022-03-29 翰昂汽车零部件有限公司 Variable capacity swash plate type compressor

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