发明名称 |
Fuel pump |
摘要 |
In a fuel pump, an impeller is rotatably accommodated between a suction side cover and a pump casing. A pump channel of the suction side cover is positioned on an axial side opposite to a fuel discharge port with respect to the impeller. The impeller has blade grooves circumferentially outside and communicating holes circumferentially inside. A wall of a terminal end portion of the pump channel of the suction side cover has a guide portion directing from the blade grooves toward the communicating holes. The terminal end portion is pointed in shape in a rotation direction of the impeller. Fuel pressurized in the pump channel is guided from the blade grooves to the communicating holes at the terminal end portion without steeply reducing flow speed and flows through the communicating holes to the fuel discharge port.
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申请公布号 |
US2004228721(A1) |
申请公布日期 |
2004.11.18 |
申请号 |
US20040845241 |
申请日期 |
2004.05.14 |
申请人 |
TAKAGI MASATOSHI;OI KIYOTOSHI |
发明人 |
TAKAGI MASATOSHI;OI KIYOTOSHI |
分类号 |
F02M37/08;F02M37/10;F04D5/00;F04D7/02;F04D29/22;F04D29/44;(IPC1-7):F04D1/04 |
主分类号 |
F02M37/08 |
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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