Alternate refrigerant air conditioning system
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-041/04
F25B-049/00
출원번호
US-0339179
(2003-01-09)
발명자
/ 주소
Kadle, Prasad Shripad
Zheng, Jing
출원인 / 주소
Delphi Technologies, Inc.
대리인 / 주소
Griffin, Patrick M.
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
An air conditioning system with alternate refrigerant includes isolates an evaporator (22) from the rest of the system not with a conventional, high pressure resisting shut off valve, but by establishing a pair of independent refrigerant loops from the standard single loop when the system shuts down
An air conditioning system with alternate refrigerant includes isolates an evaporator (22) from the rest of the system not with a conventional, high pressure resisting shut off valve, but by establishing a pair of independent refrigerant loops from the standard single loop when the system shuts down. A valve housing (28) has three ports on one side, an upper port (34) connected to the condenser outlet (16), a central port (36) connected to the compressor inlet (10), and a lower port (38) connected to the evaporator outlet (24). On the other side, a single port (40) is connected to the evaporator inlet (20). Inside the valve housing, a movable valve member (30) shifts position between a normal, operating position that interconnects the heat exchangers (14, 22), through the ports in a single loop, and a system off position which, through a different arrangement of the ports, creates a separate, isolation loop for just the evaporator (22).
대표청구항▼
1. An air conditioning system of the type that has a refrigerant containing component (22) with an inlet (20) and an outlet (24), a compressor (8) with an inlet (10) located downstream of the component outlet (24), and a condenser (14) with an inlet (12) and an outlet (16) located upstream of the in
1. An air conditioning system of the type that has a refrigerant containing component (22) with an inlet (20) and an outlet (24), a compressor (8) with an inlet (10) located downstream of the component outlet (24), and a condenser (14) with an inlet (12) and an outlet (16) located upstream of the inlet (20), and in which it is desired to segregate refrigerant within the system after the system has been shut down, characterised by, a valve housing (28) having, on one side, an upper port (34) connected to the condenser outlet (16), a central port (36) connected to the compressor inlet (10), and a lower port (38) connected to the component outlet (24), and also having, on the opposite side a single port (40) connected to the component inlet (20), and a movable valve member (30) within the housing (28) which, when the system is operating normally, divides and blocks the upper (34) and single (40) ports from the central (36) and lower (38) ports, so that the condenser outlet (16) opens to the component inlet (20), and so that the component outlet (24) opens to the compressor inlet (10), to create a single, normally operating loop, and when the system is shut down, said valve member (30) shifts position to divide and block the single (40) and lower (38) ports from the upper (34) and central (36) ports, so that the component inlet (20) and outlet (24) are opened to one another to create one refrigerant loop encompassing the component (22) and the condenser outlet (16) is opened to the compressor (10) inlet through the compressor (8) to create another refrigerant loop encompassing the condenser (14) and compressor (8) separate from the component (22). 2. An air conditioning system as described in claim 1, further characterised in that the component (22) is an automotive air conditioning system evaporator. 3. An air conditioning system as described in claim 1, further characterised in that the valve housing (28) has a cylindrical inner surface (44) and the movable valve member (30) is a diagonal section of a solid cylinder rotatable coaxially within cylindrical surface (44).
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이 특허에 인용된 특허 (9)
Sakakibara Hisayoshi (Nishio JPX) Nishida Shin (Anjo JPX), Air conditioner for vehicle, using flammable refrigerant.
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