公开(公告)号：US07811066B2

公开(公告)日：2010-10-12

申请号：US11494023

申请日：2006-07-26

申请人： Mitsuyo Ishikawa ,  Shoji Takemoto ,  Toshiyuki Banno ,  Jun Kondo ,  Takeshi Aoki

发明人： Mitsuyo Ishikawa ,  Shoji Takemoto ,  Toshiyuki Banno ,  Jun Kondo ,  Takeshi Aoki

IPC分类号： F04B1/12 ,  F04B27/08

CPC分类号： F04B27/1018 ,  F04B27/109

摘要： In a double-headed piston type compressor provided with a rotary valve in a rotary shaft, the rotary valve has an introducing port for introducing refrigerant from a suction-pressure region through a supply passage and a respective suction port into a compression chamber. A shaft seal between a front housing and the rotary shaft for preventing leakage of refrigerant along a peripheral surface of the rotary shaft is accommodated in a shaft seal chamber formed in the front housing. A communication passage connects the shaft seal chamber to the cam chamber. A communication groove is formed in an outer peripheral surface of the rotary shaft that forms the rotary valve adjacent to the front housing for communication between the introducing port and the shaft seal chamber. The supply passage and the cam chamber are in communication through the communication groove, the shaft seal chamber and the communication passage.

摘要翻译： 在设置有旋转轴的旋转阀的双头活塞式压缩机中，旋转阀具有用于将制冷剂从吸入压力区域通过供给通路和各个吸入口引入压缩室的引入口。 在前壳体和旋转轴之间的轴密封件，用于防止制冷剂沿着旋转轴的周面泄漏，容纳在形成在前壳体中的轴密封室中。 连通通道将轴密封室连接到凸轮室。 在旋转轴的外周面形成连通槽，该旋转轴的外周面形成与前壳体相邻的旋转阀，用于在导入口和轴密封室之间连通。 供给通道和凸轮室通过连通槽，轴密封室和连通通道连通。

公开(公告)号：US20070031264A1

公开(公告)日：2007-02-08

申请号：US11494023

申请日：2006-07-26

申请人： Mitsuyo Ishikawa ,  Shoji Takemoto ,  Toshiyuki Banno ,  Jun Kondo ,  Takeshi Aoki

发明人： Mitsuyo Ishikawa ,  Shoji Takemoto ,  Toshiyuki Banno ,  Jun Kondo ,  Takeshi Aoki

IPC分类号： F04B27/08

CPC分类号： F04B27/1018 ,  F04B27/109

摘要： In a double-headed piston type compressor provided with a rotary valve in a rotary shaft, the rotary valve has an introducing port for introducing refrigerant from a suction-pressure region through a supply passage and a respective suction port into a compression chamber. A shaft seal between a front housing and the rotary shaft for preventing leakage of refrigerant along a peripheral surface of the rotary shaft is accommodated in a shaft seal chamber formed in the front housing. A communication passage connects the shaft seal chamber to the cam chamber. A communication groove is formed in an outer peripheral surface of the rotary shaft that forms the rotary valve adjacent to the front housing for communication between the introducing port and the shaft seal chamber. The supply passage and the cam chamber are in communication through the communication groove, the shaft seal chamber and the communication passage.

摘要翻译： 在设置有旋转轴的旋转阀的双头活塞式压缩机中，旋转阀具有用于将制冷剂从吸入压力区域通过供给通路和各个吸入口引入压缩室的引入口。 在前壳体和旋转轴之间的轴密封件，用于防止制冷剂沿着旋转轴的周面泄漏，容纳在形成在前壳体中的轴密封室中。 连通通道将轴密封室连接到凸轮室。 在旋转轴的外周面形成连通槽，该旋转轴的外周面形成与前壳体相邻的旋转阀，用于在导入口和轴密封室之间连通。 供给通道和凸轮室通过连通槽，轴密封室和连通通道连通。