公开(公告)号：US06574976B2

公开(公告)日：2003-06-10

申请号：US09927611

申请日：2001-08-10

申请人： Yoshiaki Takano ,  Ikuo Ochi ,  Yasuhiro Yamamoto ,  Noboru Takagi ,  Tetsuo Hirose

发明人： Yoshiaki Takano ,  Ikuo Ochi ,  Yasuhiro Yamamoto ,  Noboru Takagi ,  Tetsuo Hirose

IPC分类号： F25B4104

CPC分类号： F25B41/04 ,  B60H1/00885 ,  F25B29/003

摘要： In a refrigerant cycle system having a hot gas heater function, a valve device includes a solenoid valve for opening and closing a communication between a compressor and a condenser, a differential pressure valve opened by a pressure difference between a discharge side of the compressor and an inlet side of the condenser when the solenoid valve is closed for directly introducing gas refrigerant from the discharge side of the compressor into an evaporator, and a check valve for preventing refrigerant discharged from the compressor from flowing into the condenser when the solenoid valve is opened. In the valve device, at least the three valves are integrated by a housing member to construct an integrated member.

公开(公告)号：US06367506B1

公开(公告)日：2002-04-09

申请号：US09535453

申请日：2000-03-24

申请人： Noboru Takagi ,  Tetsuo Hirose

发明人： Noboru Takagi ,  Tetsuo Hirose

IPC分类号： F16K1124

CPC分类号： F16K31/0655 ,  F16K11/10 ,  F25B41/04 ,  Y10T137/268 ,  Y10T137/2698 ,  Y10T137/87861

摘要： A switch valve is provided in a refrigerant circuit. The switch valve includes a first valve mechanism, a second valve mechanism, and a single valve housing incorporating the first and second valve mechanisms. The first valve mechanism is an electromagnetic valve. The first valve mechanism selectively connects and disconnects an outlet of a compressor with an inlet of a condenser in accordance with an electric current supply. The second valve mechanism is a differential pressure valve. The second valve mechanism selectively connects and disconnects the outlet of the compressor with an inlet of an evaporator in accordance with a difference between the pressure at the outlet of the compressor and the pressure at the inlet of the condenser. In this manner, the single switch valve, which includes the first and second valve mechanisms incorporated in the same valve housing, switches the refrigerant circuit between a path for a cooling operation and a path for a warming operation. This structure simplifies the configuration of the refrigerant circuit.

摘要翻译： 开关阀设置在制冷剂回路中。 开关阀包括第一阀机构，第二阀机构和结合有第一和第二阀机构的单个阀壳体。 第一阀机构是电磁阀。 第一阀机构根据电流供应选择性地连接和断开压缩机的出口与冷凝器的入口。 第二阀机构是差压阀。 第二阀机构根据压缩机出口处的压力与冷凝器入口处的压力之间的差异选择性地将压缩机的出口与蒸发器的入口连接和断开。 以这种方式，包括结合在相同的阀壳体中的第一和第二阀机构的单个开关阀在用于制冷操作的路径和用于加温操作的路径之间切换制冷剂回路。 该结构简化了制冷剂回路的结构。