发明名称 |
Variable capacity vane compressor |
摘要 |
A variable capacity vane compressor has a pressure chamber formed in one of side blocks of a cylinder and communicating a zone under lower pressure with a zone under higher pressure, and at least one second inlet port the opening angle of which is variable in response to a difference between pressure within a first pressure chamber of the pressure chamber and pressure within a second pressure chamber of same. The second pressure chamber is communicated with the zone under higher pressure via a high-pressure communication passage and with the zone under lower pressure via a low-pressure communication passage. A control valve device extends across the high-pressure communication passage and the low-pressure communication passage, and is disposed to close the low-pressure communication passage and simultaneously open the high-pressure communication passage when pressure within the zone under lower pressure exceeds a predetermined value, and to open the low-pressure communication passage and simultaneously effect one of closing and reduction of the opening area of the high-pressure communication passage when the pressure within the zone under lower pressure is below the predetermined value, whereby the capacity of the compressor can be varied with high responsiveness.
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申请公布号 |
US4737081(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19870056604 |
申请日期 |
1987.05.29 |
申请人 |
DIESEL KIKI CO., LTD. |
发明人 |
NAKAJIMA, NOBUYUKI;INOMATA, KENICHI;OKADA, SHIGERU |
分类号 |
F04B49/02;F04C18/344;F04C28/14;(IPC1-7):F04B49/02;F04C29/08 |
主分类号 |
F04B49/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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