发明名称 |
Oil pump |
摘要 |
A pair of pump bodies are disposed on the opposite sides of a rotor having vanes and a cam ring disposed in surrounding relationship with the rotor. These pump bodies serve the function of a sideplate and a pressure plate. The rotary shaft of the rotor is rotatably journaled in one of the pump bodies. A flow control valve is disposed in alignment with the axis of the other pump body, and a relief valve is disposed in surrounding relationship with the flow control valve. In this manner, the construction of various parts is simplified and the number of parts is reduced while simultaneously facilitating the machining operation. The overall length and the outer diameter as well as the weight of the pump can be reduced, advantageously reducing the manufacturing cost of the pump. The construction is further simplified by providing a cup-shaped casing around the pump body which functions as the pressure plate so that a space defined laterally of the pump body forms a pressure chamber on the discharge side of the pump.
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申请公布号 |
US4400139(A) |
申请公布日期 |
1983.08.23 |
申请号 |
US19810258242 |
申请日期 |
1981.04.28 |
申请人 |
JIDOSHA KIKI CO., LTD. |
发明人 |
MASUDA, NAOSUKE;SUZUKI, YOSHIO;OHE, TAKESHI |
分类号 |
F04C2/344;F01C21/10;F04C14/26;F04C15/00;(IPC1-7):F04B49/08 |
主分类号 |
F04C2/344 |
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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