发明名称 |
Fuel pump with an improved damping device for a direct injection system |
摘要 |
A fuel pump for a direct injection system having: at least one pumping chamber; a piston which is mounted sliding inside the pumping chamber in order to vary cyclically the volume of the pumping chamber; an intake duct connected to the pumping chamber and regulated by an inlet valve; a delivery duct connected to the pumping chamber and regulated by a one-way delivery valve which allows exclusively a fuel flow outgoing from the pumping chamber; and a damping device, which is placed along the intake duct upstream of the inlet valve, and comprises at least one elastically deformable damping body that has internally a closed chamber filled with pressurized gas and composed of two metal plates cup shaped and welded together at their annular edges by an annular weld without interruptions. |
申请公布号 |
US8672653(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US20100938892 |
申请日期 |
2010.11.03 |
申请人 |
MANCINI LUCA;DE VITA DANIELE;MATTIOLI MASSIMO;MAGNETI MARELLI S.P.A. |
发明人 |
MANCINI LUCA;DE VITA DANIELE;MATTIOLI MASSIMO |
分类号 |
F04B15/00;F04B19/22;F04B53/00 |
主分类号 |
F04B15/00 |
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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