发明授权
- 专利标题: Electric motor driven compressor
- 专利标题(中): 电动马达驱动压缩机
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申请号: US09307183申请日: 1999-05-07
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公开(公告)号: US06183215B2公开(公告)日: 2001-02-06
- 发明人: Takeshi Sakai , Kazuhide Uchida , Masafumi Nakashima , Hiroyasu Kato
- 申请人: Takeshi Sakai , Kazuhide Uchida , Masafumi Nakashima , Hiroyasu Kato
- 优先权: JP10-143242 19980525
- 主分类号: F04B1700
- IPC分类号: F04B1700
摘要:
A compact, lightweight electric motor driven compressor suitable for an air conditioning system using a CO2 refrigerant is disclosed. The thickness of a motor casing is reduced by using the gaps formed in the motor portion in a motor casing as a part of a low-pressure intake chamber, while forming a part of the discharge chamber by utilizing the annular gap between the inner surface of a pump casing and the outer surface of a compressor portion. In the case where CO2 refrigerant is used, the compressor portion can be reduced in size and therefore a dead space is generated due to the difference in size with the motor casing. Since this dead space is used as a discharge chamber, the capacity of the discharge chamber can be increased to suppress the discharge pulsation.