发明名称 |
Jet pump, fuel feed apparatus having the same, and method for welding the same |
摘要 |
A jet pump is provided for supplying fuel from a fuel tank into a sub-tank, which is accommodated in the fuel tank. The jet pump includes a welded portion adapted to being welded to an outer wall surface of a bottom portion of the sub-tank. A swirl portion defines therein a swirl chamber. A jet nozzle generates negative pressure by jetting swirl-flowing fuel passing through the swirl chamber so as to draw fuel from the fuel tank into the sub-tank. A pressure-receiving portion defines a clearance with respect to the swirl portion. The pressure-receiving portion extends from the welded portion in a direction to distant from the sub-tank. The pressure-receiving portion is applied with force toward the welded portion when the welded portion is welded to the sub-tank.
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申请公布号 |
US2007217921(A1) |
申请公布日期 |
2007.09.20 |
申请号 |
US20070723186 |
申请日期 |
2007.03.16 |
申请人 |
DENSO CORPORATION |
发明人 |
OOHASHI MASAHARU;OKABE KENJI |
分类号 |
F04B23/08;F02M37/00 |
主分类号 |
F04B23/08 |
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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