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公开(公告)号：EP0894229A1
公开(公告)日：1999-02-03
申请号：EP97921339.0
申请日：1997-04-24
CPC分类号： F25B41/062 , F25B2341/0682 , F25B2600/2521 , Y10T137/86413
摘要： A valve assembly (10) includes a refrigerant inlet port (18) and a refrigerant outlet port (19) having a restricted opening (15), with the inlet port opening at least 2 times larger than the restricted outlet port opening. The valve includes components for opening and closing the inlet port (18) in response to valve cavity pressure between the inlet and outlet ports. The larger inlet port (18) relative to the restricted outlet port (19) provides for rapid pressure buildup in the valve cavity (24) when the inlet port is open which, in turn, causes rapid closing of the inlet port. The valve (10) is capable of rapid cycling rates, highly effective for small refrigeration or cooling apparatus, as well as for controlling pressure in other applications requiring pressure regulation.
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公开(公告)号：EP0894229B1
公开(公告)日：2004-01-21
申请号：EP97921339.4
申请日：1997-04-24
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/0682 , F25B2600/2521 , Y10T137/86413
摘要： A valve assembly (10) includes a refrigerant inlet port (18) and a refrigerant outlet port (19) having a restricted opening (15), with the inlet port opening at least 2 times larger than the restricted outlet port opening. The valve includes components for opening and closing the inlet port (18) in response to valve cavity pressure between the inlet and outlet ports. The larger inlet port (18) relative to the restricted outlet port (19) provides for rapid pressure buildup in the valve cavity (24) when the inlet port is open which, in turn, causes rapid closing of the inlet port. The valve (10) is capable of rapid cycling rates, highly effective for small refrigeration or cooling apparatus, as well as for controlling pressure in other applications requiring pressure regulation.
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