发明名称 |
Kombinationsventil vid ett bränslesystem för en förbränningsmotor samt dylikt bränslesystem |
摘要 |
The invention relates to a combination valve ( 15 ) for pressure control and venting in a fuel system for delivering fuel to an internal combustion engine. The valve comprises a primary valve cone ( 25 ), which is supported so that it is displaceable between two limit positions in a cylinder bore ( 24 ) in a valve housing ( 23 ), against the action of a first spring element ( 26 ). The displacement of the valve cone from an inoperative limit position into an operative limit position leads to the opening of a connection between an inlet duct ( 32 ) and an outlet duct ( 33 ) in the valve housing. The valve cone ( 25 ) is provided with an inner passage ( 27 ), which is designed to accommodate a secondary valve cone ( 28 ). This is displaceable between a support surface ( 29 ) and a valve seat ( 30 ) against the action of a second spring element ( 31 ) having a lower spring constant than the first spring element. A displacement of the secondary valve cone against the action of the second spring element ( 31 ) leads to the opening of a connection between the inlet duct ( 32 ) and a venting duct ( 34 ). |
申请公布号 |
SE0103387(L) |
申请公布日期 |
2003.04.11 |
申请号 |
SE20010003387 |
申请日期 |
2001.10.10 |
申请人 |
VOLVO LASTVAGNAR AB |
发明人 |
LARSSON ANDERS;TENGLUND LARS;DAVIDSSON PETER |
分类号 |
F02M37/00;F02M37/20;F02M37/22;F02M55/00;F02M55/02;F02M59/46;F02M63/02;F02M69/00;F16K11/04;F16K17/04;F16K17/10;(IPC1-7):F16K17/04 |
主分类号 |
F02M37/00 |
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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