发明名称 |
Fuel pump assembly |
摘要 |
A pump for pumping low viscosity fuels has a cam defining a pumping chamber bore wall. A plurality of slippers define pumping pockets located within the bore wall. The slippers are rotated through inlet arcs and through outlet arcs. A pair of orifices of predetermined diameter are located in the respective inlet arcs and communicate with each pumping pocket at a location radially inwardly of the slippers. Each orifice is circular in cross-section and has a diameter within the range of 0.067 inches to 0.076 inches. Each orifice diameter is such that pump noise restricted and the pump has a relatively high inlet vacuum.
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申请公布号 |
US4259044(A) |
申请公布日期 |
1981.03.31 |
申请号 |
US19790039371 |
申请日期 |
1979.05.15 |
申请人 |
TRW INC. |
发明人 |
DRUTCHAS, GILBERT H.;SPENCER, PHILLIP B. |
分类号 |
F02M37/04;F04C2/344;F04C15/00 |
主分类号 |
F02M37/04 |
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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