KR20020021213A - Coupling structure of pipe in air-conditioning system for vehicle - Google Patents

Coupling structure of pipe in air-conditioning system for vehicle Download PDF

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Publication number
KR20020021213A
KR20020021213A KR1020000053925A KR20000053925A KR20020021213A KR 20020021213 A KR20020021213 A KR 20020021213A KR 1020000053925 A KR1020000053925 A KR 1020000053925A KR 20000053925 A KR20000053925 A KR 20000053925A KR 20020021213 A KR20020021213 A KR 20020021213A
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KR
South Korea
Prior art keywords
refrigerant pipe
refrigerant
evaporator
air
connection block
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KR1020000053925A
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Korean (ko)
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KR100352812B1 (en
Inventor
임재선
Original Assignee
정주호
대우자동차 주식회사
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Priority to KR1020000053925A priority Critical patent/KR100352812B1/en
Publication of KR20020021213A publication Critical patent/KR20020021213A/en
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Publication of KR100352812B1 publication Critical patent/KR100352812B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/086—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed with screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe

Abstract

PURPOSE: A refrigerant pipe connection structure is provided to allow assembly work to be easily performed, and achieve an improved performance and quality of air conditioning system by preventing refrigerant leakage. CONSTITUTION: In an air conditioning system including a compressor, a condenser, a receiver dryer, an expansion valve, a blower unit and an evaporator, a connection block(21) and a refrigerant pipe(20) are interconnected with each other so as to serve as a unit for supplying refrigerant. The refrigerant pipe has an end(22) where a connection part(23) having an expanded diameter is arranged so as to connect the refrigerant pipe to other refrigerant pipe. The connection block to be coupled with the refrigerant pipe has a coupling hole(24) for insertion of the refrigerant pipe. The coupling hole has grooves formed at both side surfaces of the coupling hole so as to fix the inserted refrigerant pipe.

Description

자동차용 에어컨시스템의 냉매파이프 연결구조{Coupling structure of pipe in air-conditioning system for vehicle}Coupling structure of pipe in air-conditioning system for vehicle}

본 발명은 자동차용 에어컨시스템의 냉매파이프 연결구조에 관한 것으로서 더욱 상세하게는 에어컨시스템을 구성하는 압축기, 컨덴서, 증발기, 리시버드라이어 및 팽창밸브와 냉매파이프 상간의 연결관계 개선에 관한 것이다.The present invention relates to a refrigerant pipe connection structure of an automotive air conditioner system, and more particularly, to an improvement in a connection relationship between a compressor, a condenser, an evaporator, a receiver dryer, an expansion valve, and a refrigerant pipe phase constituting an air conditioner system.

자동차에는 하절기와 동절기에 실내온도를 적절한 상태로 조절하고 실내환기의 목적으로 히팅시스템과 에어컨시스템으로 구성되는 공조장치를 구비한다.The vehicle is equipped with an air conditioning system consisting of a heating system and an air conditioning system for the purpose of indoor ventilation to adjust the room temperature to the appropriate state during the summer and winter.

상기와 같은 공조장치는 일체형의 사출조립체인 공조덕트가 구비되고, 상기 공조덕트의 선측에는 외부공기의 유입과 실내공기의 순환제어를 위한 공기흡입도어와 유입된 공기의 강제송풍을 위한 블로워유니트가 구비된다.The air conditioner as described above is provided with an air-conditioning duct which is an integral injection assembly, and an air suction door for controlling the inflow of external air and circulation of indoor air and a blower unit for forced ventilation of the air introduced at the side of the air-conditioning duct. It is provided.

상기 블로워유니트의 전방에는 증발기와 히터코어가 순차적으로 배치되고 상기 증발기와 히터코어는 온도조절도어에 의하여 그 통로가 구획된다.An evaporator and a heater core are sequentially disposed in front of the blower unit, and the passage is partitioned by the temperature control door.

상기 증발기와 히터코어의 전방에는 분배도어에 의하여 자동차의 실내와 연접되는 디플로스터나 인스트루먼트패널상에 구비되는 벤트홀을 통하여 냉,난기가 실내로 유입되는 구성이다.The front of the evaporator and the heater core is a configuration in which cold and warm air flows into the room through a vent hole provided on a deflector or an instrument panel connected to an interior of a vehicle by a distribution door.

상기와 같은 공조장치에 사용되는 에어컨시스템(10)은 도 1에 도시된 바와같이;The air conditioning system 10 used in the air conditioning apparatus as shown in FIG. 1;

냉매를 고온 고압의 가스로 변환하는 압축기(11) → 고온고압의 가스를 액화하는 컨덴서(12) → 수분과 먼지등을 제거하고 냉방부하에 맞게 필요한 양을 증발기로 공급할 수 있도록 냉매를 일시저장하는 리시버드라이어(13) → 증발기에서 열교환이 용이하도록 저온 저압의 서리와 같은 형태로 만드는 팽창밸브(15) → 블로워유니트(16)에 의하여 유입되는 공기와 열교환하여 냉기를 생성하는 증발기(17)로 구성되며, 증발기(17)를 거친 냉매는 다시 압축기(11)로 순환반복한다.Compressor (11) converting the refrigerant into gas of high temperature and high pressure → Condenser (12) to liquefy the gas of high temperature and high pressure → Temporarily store the refrigerant to remove the moisture and dust and supply the necessary amount to the evaporator according to the cooling load Receiver dryer (13) → Expansion valve (15) to form a frost of low temperature and low pressure to facilitate heat exchange in the evaporator. → Consists of an evaporator (17) that generates cold air by heat exchange with air introduced by the blower unit (16). The refrigerant passing through the evaporator 17 is circulated to the compressor 11 again.

상기에서와 같이 에어컨시스템(10)을 구성하는 각 부품 상간은 냉매의 공급을 위한 수단으로 냉매파이프(20)가 연결되어진다.As described above, the refrigerant pipe 20 is connected to each phase of the components constituting the air conditioner system 10 as a means for supplying the refrigerant.

종래에는 이러한 냉매파이프(1)와 각 부품간의 연결관계가 도 2,3에 도시된바 이를 살펴보면 다음과 같다.Conventionally, the connection relationship between the refrigerant pipe 1 and each component is shown in FIGS. 2 and 3 as follows.

에어컨시스템을 구성하는 부품에 구비되는 연결블럭(2)의 일측면에는 냉매파이프(1)를 삽입할 수 있는 삽입공(3)이 형성되고, 상기 삽입공(3)에서 연결블럭(2)의 대향면까지는 냉매유로공(4)이 형성된다.An insertion hole 3 into which the refrigerant pipe 1 may be inserted is formed at one side of the connection block 2 provided in the components constituting the air conditioning system, and the insertion block 3 of the connection block 2 is formed. The coolant flow path 4 is formed to the opposite surface.

상기 냉매유로공(4)의 단부에는 연결블럭(2)과 일체로 냉매를 전달하기 위한 전달공(5)을 가지는 후육부(6)를 일체로 더 가지는 구성이다.An end portion of the coolant flow path 4 is further configured to further include a thick portion 6 having a transfer hole 5 for delivering a coolant integrally with the connection block 2.

상기에서 냉매파이프(1)와 연결블럭(2)은 브레이징 결합에 의하여 기밀상태가 유지되어 냉매의 유출이 방지되도록 하게된다.In the above, the refrigerant pipe 1 and the connection block 2 are maintained in an airtight state by brazing coupling to prevent the leakage of the refrigerant.

상기와 같은 종래 기술에서는 냉매파이프를 연결하기 위한 연결블럭의 설계와 제작에 상당한 난점을 가짐으로서 생산원가의 상승과 생산성이 저하되는 등의 문제점을 가진다.In the prior art as described above, there is a problem in that the production cost is increased and productivity is lowered by having a considerable difficulty in designing and manufacturing a connection block for connecting the refrigerant pipe.

특히, 냉매파이프와 연결블럭을 브레이징할 때 브레이징 불량이 발생할 경우에는 냉매의 유출이 우려되고, 브레이징 상태가 양호하더라도 실차 장착한 상태에서는 진동등의 외압에 의하여 브레이징 상태가 해제되는 경우가 발생하여 역시 냉매유출의 우려가 다분하게 된다.In particular, if the brazing failure occurs when brazing the refrigerant pipe and the connection block, the refrigerant may be leaked, and even if the brazing state is good, the brazing state may be released by external pressure such as vibration even when the vehicle is mounted properly. There is a risk of leakage of refrigerant.

이에 본 발명에서는 상기와 같은 문제점들을 해결하기 위하여 발명된 것으로서 냉매파이프와 에어컨시스템을 구성하는 각부품의 연결블럭을 개선하여 조립성의 향상은 물론, 냉매의 유출현상을 배제하여 에어컨시스템의 성능과 품질향상에 기여할 수 있도록 함을 목적으로 한다.Therefore, the present invention is invented to solve the above problems, and improves the assembly of the refrigerant pipe and each component constituting the air conditioner system to improve the assemblability, as well as to prevent the leakage of the refrigerant performance and quality of the air conditioner system It aims to contribute to improvement.

도 1은 본 발명을 설명하기 위한 에어컨시스템의 간략적인 구성도.1 is a simplified configuration diagram of an air conditioning system for explaining the present invention.

도 2는 종래기술이 적용된 냉매파이프 연결관계를 도시한 분해 단면도.Figure 2 is an exploded cross-sectional view showing a refrigerant pipe connection relationship to which the prior art is applied.

도 3은 도 2에 적용된 냉매파이프 연결관계를 도시한 결합상태 단면도.3 is a cross-sectional view illustrating a coupling state of a refrigerant pipe connected to FIG. 2.

도 4는 본 발명의 기술이 적용된 냉매파이프 연결관계를 도시한 분해 사시도.4 is an exploded perspective view showing a refrigerant pipe connection relationship to which the technique of the present invention is applied.

도 5는 본 발명의 기술이 적용된 냉매파이프 연결관계를 도시한 결합상태 단면도.5 is a cross-sectional view showing a coupling state of the refrigerant pipe connection technology to which the present invention is applied.

*도면의 주요 부분에 사용된 부호의 설명** Description of the symbols used in the main parts of the drawings *

10; 에어컨시스템10; Air Conditioning System

20; 냉매파이프20; Refrigerant pipe

21; 연결블럭21; Connection block

23; 연결부23; Connection

26; 오링26; O-ring

이하 첨부되는 도면과 관련하여 상기 목적을 달성하기 위한 본 발명의 바람직한 실시예의 구성과 작용에 대하여 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

도 1은 본 발명을 설명하기 위한 에어컨시스템의 간략적인 구성도, 도 4는 본 발명의 기술이 적용된 냉매파이프 연결관계를 도시한 분해 사시도, 도 5는 본 발명의 기술이 적용된 냉매파이프 연결관계를 도시한 결합상태 단면도로서 함께 설명한다.1 is a schematic configuration diagram of an air conditioner system for explaining the present invention, FIG. 4 is an exploded perspective view showing a refrigerant pipe connection relationship to which the technology of the present invention is applied, and FIG. 5 is a refrigerant pipe connection relationship to which the technology of the present invention is applied. It demonstrates together as sectional drawing shown in figure.

자동차용 에어컨시스템(10)은;Automotive air conditioning system 10;

냉매를 고온 고압의 가스로 변환하는 압축기(11) → 고온고압의 가스를 액화하는 컨덴서(12) → 수분과 먼지등을 제거하고 냉방부하에 맞게 필요한 양을 증발기로 공급할 수 있도록 냉매를 일시저장하는 리시버드라이어(13) → 증발기에서 열교환이 용이하도록 저온 저압의 서리와 같은 형태로 만드는 팽창밸브(15) → 블로워유니트(16)에 의하여 유입되는 공기와 열교환하여 냉기를 생성하는 증발기(17)로 구성되며, 증발기(17)를 거친 냉매는 다시 압축기(11)로 순환반복한다.Compressor (11) converting the refrigerant into gas of high temperature and high pressure → Condenser (12) to liquefy the gas of high temperature and high pressure → Temporarily store the refrigerant to remove the moisture and dust and supply the necessary amount to the evaporator according to the cooling load Receiver dryer (13) → Expansion valve (15) to form a frost of low temperature and low pressure to facilitate heat exchange in the evaporator. → Consists of an evaporator (17) that generates cold air by heat exchange with air introduced by the blower unit (16). The refrigerant passing through the evaporator 17 is circulated to the compressor 11 again.

상기에서와 같이 에어컨시스템(10)을 구성하는 각 부품 상간은 냉매의 공급을 위한 수단으로 냉매파이프(20)가 연결되어진다.As described above, the refrigerant pipe 20 is connected to each phase of the components constituting the air conditioner system 10 as a means for supplying the refrigerant.

본 발명에서는 상기 에어컨시스템(10)을 구성하는 부품에 구비되는 연결블럭(21)과 냉매파이프(20)를 개선하여 냉매유출현상의 방지와 함께 조립성의 향상에 기여할 수 있도록 하는 것을 특징으로 한다.The present invention is characterized in that the connection block 21 and the refrigerant pipe 20 included in the components constituting the air conditioner system 10 are improved to contribute to the improvement of assemblability and the prevention of refrigerant leakage.

이를 위하여 본 발명에서는;To this end, in the present invention;

상기 냉매파이프(20)의 연결부위 단부(22)에는 타 냉매파이프와 연결할 수 있도록 직경을 확대한 연결부(23)를 일체로 형성한다.The connection part end 22 of the refrigerant pipe 20 is integrally formed with a connection part 23 having an enlarged diameter so as to be connected to another refrigerant pipe.

상기 냉매파이프(20)가 결합되는 연결블럭(21)상에는 냉매파이프(20)가 삽입될 수 있는 결합공(24)을 형성하고, 상기 결합공(24)의 양측면에는 냉매파이프(20)를 고정시키기 위한 고정홈(25)을 형성한다.A coupling hole 24 into which the refrigerant pipe 20 may be inserted is formed on the connection block 21 to which the refrigerant pipe 20 is coupled, and the refrigerant pipe 20 is fixed to both sides of the coupling hole 24. The fixing groove 25 is formed to make.

상기 고정홈(25)에는 연결부(23) 후미에 개재되는 오링(26)과 연결블럭(21)의 두께만큼의 간격을 두고 냉매파이프(21)에 형성하는 코킹(27)이 위치하여 냉매파이프(21)가 유동하지 않게 고정할 수 있도록 한다.The fixing groove 25 has a caulking 27 formed in the refrigerant pipe 21 at an interval equal to the thickness of the O-ring 26 and the connecting block 21 interposed between the rear end of the connecting portion 23 and the refrigerant pipe 21. ) So that it does not flow.

이상과 같은 본 발명은;The present invention as described above;

냉매파이프(20)가 연결블럭(21)을 관통한 상태에서 연결블럭(21)의 전,후면에 형성되는 고정홈(25)에 오링(26)을 개재하거나, 냉매파이프(20)를 코킹(27)하여 연결블럭(21)으로부터 냉매파이프(20)가 이탈되지 않도록 함은 물론 유동성이 배재되도록 한다.In the state where the refrigerant pipe 20 penetrates the connection block 21, an O-ring 26 is interposed between the fixing grooves 25 formed at the front and rear surfaces of the connection block 21, or the refrigerant pipe 20 is caulked ( 27) so that the refrigerant pipe 20 is not separated from the connection block 21, as well as the fluidity is excluded.

이러한 본 발명은 냉매파이프(20)의 단부가 연결블럭(21)의 중간에 위치하는 현상이 없어짐으로서 이들 상간의 유격이나 갭이 발생하지 않아 냉매의 유출현상이없어지게 된다.The present invention eliminates the phenomenon in which the end of the refrigerant pipe 20 is located in the middle of the connection block 21, so that no gaps or gaps between these phases occur, thereby eliminating the phenomenon of refrigerant leakage.

특히, 냉매파이프(20)와 연결블럭(21)을 결합하기 위한 브레이징 작업이 생략되고, 연결블럭(21)의 형상이 단순화 됨으로서 조립의 용이성은 물론 설계의 용이성과 생산성의 향상에 기여할 수 있게되는 것이다.In particular, the brazing operation for coupling the refrigerant pipe 20 and the connection block 21 is omitted, and since the shape of the connection block 21 is simplified, it is possible to contribute to the ease of assembly as well as the design and productivity. will be.

이상과 같은 본 발명은 냉매파이프와 에어컨시스템을 구성하는 각부품의 연결블럭을 개선하여 조립성의 향상은 물론, 냉매의 유출현상을 배제하여 에어컨시스템의 성능과 품질향상에 기여할 수 있는 등 많은 효과를 얻을 수 있다.As described above, the present invention improves the connection block of each component constituting the refrigerant pipe and the air conditioner system, thereby improving assembly performance and eliminating the leakage of the refrigerant to contribute to the performance and quality of the air conditioner system. You can get it.

Claims (3)

냉매를 고온 고압의 가스로 변환하는 압축기(11) → 고온고압의 가스를 액화하는 컨덴서(12) → 수분과 먼지등을 제거하고 냉방부하에 맞게 필요한 양을 증발기로 공급할 수 있도록 냉매를 일시저장하는 리시버드라이어(13) → 증발기에서 열교환이 용이하도록 저온 저압의 서리와 같은 형태로 만드는 팽창밸브(15) → 블로워유니트(16)에 의하여 유입되는 공기와 열교환하여 냉기를 생성하는 증발기(17)로 구성되며, 증발기(17)를 거친 냉매는 다시 압축기(11)로 순환반복하는 자동차용 에어컨시스템(10)에서 냉매공급을 위한 수단으로 연결블럭(21)과 냉매파이프(20)을 연결함에 있어서;Compressor (11) converting the refrigerant into gas of high temperature and high pressure → Condenser (12) to liquefy the gas of high temperature and high pressure → Temporarily store the refrigerant to remove the moisture and dust and supply the necessary amount to the evaporator according to the cooling load Receiver dryer (13) → Expansion valve (15) to form a frost of low temperature and low pressure to facilitate heat exchange in the evaporator. → Consists of an evaporator (17) that generates cold air by heat exchange with air introduced by the blower unit (16). The refrigerant passing through the evaporator 17 is connected to the connection block 21 and the refrigerant pipe 20 as a means for supplying the refrigerant in the automotive air conditioner system 10 which is circulated again to the compressor 11. 상기 냉매파이프(20)의 연결부위 단부(22)에는 타 냉매파이프와 연결할 수 있도록 직경을 확대한 연결부(23)를 형성하고;A connection part 23 having an enlarged diameter so as to be connected to another refrigerant pipe at a connection part end 22 of the refrigerant pipe 20; 상기 냉매파이프(20)가 결합되는 연결블럭(21)상에는 냉매파이프(20)가 삽입될 수 있도록 형성하는 결합공(24)과;A coupling hole 24 formed on the connection block 21 to which the refrigerant pipe 20 is coupled to allow the refrigerant pipe 20 to be inserted; 상기 결합공(24)의 양측면에는 삽입된 냉매파이프(20)를 고정시키기 위한 고정홈(25)을 형성하여 구성하는 것을 특징으로 하는 자동차용 에어컨시스템의 냉매파이프 연결구조.Refrigerant pipe connection structure of the air conditioning system for a vehicle, characterized in that formed on both sides of the coupling hole 24 to form a fixing groove (25) for fixing the inserted refrigerant pipe (20). 제 1 항에 있어서;The method of claim 1; 상기 고정홈(25)에는 연결부(23)후미에 개재되는 오링(26)이 위치하여 냉매파이프(20)를 고정하도록 한 것을 특징으로 하는 자동차용 에어컨시스템의 냉매파이프 연결구조.The fixing groove (25) is connected to the refrigerant ring connection structure of the vehicle air conditioning system, characterized in that the O-ring (26) interposed in the rear portion 23 is fixed to the refrigerant pipe (20). 제 1 항에 있어서;The method of claim 1; 상기 고정홈(25)에는 연결블럭(21)의 두께만큼의 간격을 두고 냉매파이프(21)에 형성하는 코킹(27)이 위치하여 냉매파이프(21)를 고정하도록 한 것을 특징으로 하는 자동차용 에어컨시스템의 냉매파이프 연결구조.The air conditioner for automobiles, characterized in that the caulking (27) formed in the refrigerant pipe 21 is located in the fixing groove 25 at intervals of the thickness of the connection block 21 to fix the refrigerant pipe (21). Refrigerant pipe connection structure of the system.
KR1020000053925A 2000-09-14 2000-09-14 Coupling structure of pipe in air-conditioning system for vehicle KR100352812B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059276A1 (en) 2008-11-27 2010-06-02 GM Global Technology Operations, Inc., Detroit Connecting system for connecting e.g. rigid lines of compressor of air conditioner in motor vehicle, has connection part including recess for receiving connection region of rigid line, and fins arranged on lateral surface of inner periphery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04363520A (en) * 1990-11-01 1992-12-16 Mitsubishi Electric Corp Pipe joint construction of air-conditioner
JPH0784917B2 (en) * 1990-12-07 1995-09-13 株式会社クボタ Fitting device for push ring for pipe fittings
JP3228007B2 (en) * 1994-07-06 2001-11-12 松下電器産業株式会社 Combustion machine
DE19516096C1 (en) * 1995-05-03 1996-11-14 Trinova Aeroquip Gmbh Quick release coupling for pipe carrying refrigerant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059276A1 (en) 2008-11-27 2010-06-02 GM Global Technology Operations, Inc., Detroit Connecting system for connecting e.g. rigid lines of compressor of air conditioner in motor vehicle, has connection part including recess for receiving connection region of rigid line, and fins arranged on lateral surface of inner periphery

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