公开(公告)号：EP2557307A1

公开(公告)日：2013-02-13

申请号：EP11176834.7

申请日：2011-08-08

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Whitehead, Leon ,  Jury, Thomas ,  Hennig, Christian ,  Jorach, Rainer

IPC: F02M59/46 ,  F02M63/02

CPC classification number: F02M59/464 ,  F02M63/0265

Abstract: A pump head for a fuel pump for use in a common rail fuel injection system is provided. The pump head (100; 200; 300) comprises a pump head housing (102; 202; 302), a pumping chamber (106; 206; 306) defined within the pump head housing (102; 202; 302), and an inlet valve arrangement (108; 208; 308) for controlling fuel flow into the pumping chamber (106; 206; 306), the inlet valve arrangement (108; 208; 308) including an inlet valve member (110; 210; 310) moveable between open and closed positions wherein, in use, movement of the inlet valve member (110; 210; 310) is damped by means of viscoelastic damping.

Abstract translation: 提供了用于共轨燃料喷射系统的燃料泵的泵头。 泵头（100; 200; 300）包括泵头壳体（102; 202; 302），限定在泵头壳体（102; 202; 302）内的泵送室（106; 206; 306） （108; 208; 308），其用于控制​​燃料流入所述增压室（106; 206; 306），所述进气阀装置（108; 208; 308）包括可在两者之间移动的进气阀构件（110; 210; 310） 打开位置和关闭位置，其中在使用中，入口阀构件（110; 210; 310）的运动通过粘弹性阻尼来阻尼。