发明名称 |
Variable capacity vane compressor |
摘要 |
A variable capacity vane compressor in which one of front and rear side blocks has at least one inlet port divided into first and second portions, and a control element has at least one pressure-receiving protuberance dividing a space formed in the one side block into first and second pressure chambers, wherein the control element angularly moves in response to a differential pressure between the first and second pressure chambers, to vary the opening angle of the second portion of the at least one inlet port. A torsion coiled spring is fitted around a hub of the one side block for biasing the control element in a circumferential direction of increasing the opening angle of the second portion of the inlet port. The torsion coiled spring has an end thereof provided with a first engaging portion engaging a first retaining device provided in the control element, and another end thereof provided with a second engaging portion engaging a second retaining device provided in the hub, through a holding device. The second engaging portion of the spring comprises a first portion and a second portion extending at a predetermined angle with respect to the first portion and forming a tip, thus presenting a bent portion together with the first portion. The second retaining device of the hub comprises a first retaining portion engaging the first portion of the second engaging portion of the spring, and a second retaining portion extending at a predetermined angle with respect to the first retaining portion and engaging the second portion of the second engaging portion of the spring.
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申请公布号 |
US4776770(A) |
申请公布日期 |
1988.10.11 |
申请号 |
US19870131990 |
申请日期 |
1987.12.11 |
申请人 |
DIESEL KIKI CO., LTD. |
发明人 |
NAKAJIMA, NOBUYUKI;INOMATA, KENICHI;OKADA, SHIGERU;EITAI, KAZUO;MORUTA, MASAYA;YAMAGUCHI, TOSHIO |
分类号 |
F04B49/00;F04B49/02;F04C18/344;F04C28/14;(IPC1-7):F04B49/00;F04C29/08 |
主分类号 |
F04B49/00 |
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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