公开(公告)号：WO2012171970A1

公开(公告)日：2012-12-20

申请号：PCT/EP2012/061229

申请日：2012-06-13

Applicant: Delphi Technologies Holding S.à.r.l. ,  SCHANZ, Robert ,  BUCKLEY, Paul ,  JORACH, Rainer

Inventor： SCHANZ, Robert ,  BUCKLEY, Paul ,  JORACH, Rainer

IPC: F02M59/36 ,  F04B49/22 ,  F04B53/10

CPC classification number: F02M59/464 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2250/31 ,  F02M59/366 ,  F02M59/367 ,  F02M59/368 ,  F02M59/46 ,  F02M63/0225 ,  F04B1/0452 ,  F04B7/0076 ,  F04B49/225 ,  Y10T137/85978

Abstract: An inlet valve arrangement for a pump head of a fuel pump for use in a common rail fuel injection system comprises an inlet valve member (10) moveable between open and closed positions to control the flow from a source of low-pressure fuel to a pumping chamber (6) of the fuel pump. The inlet valve member (10) is arranged to open in response to the pressure difference between the fluid pressure of fuel on an inlet side of the inlet valve member (10) and the fluid pressure in the pumping chamber (6) exceeding a threshold value. The inlet valve arrangement (9) comprises means for selectively applying a closing force on the inlet valve member (10) to bias it toward the closed position, such that, in use, the application of the closing force by said means acts to increase the threshold value of the pressure difference at which the inlet valve member (10) opens.

Abstract translation: 用于在共轨燃料喷射系统中使用的燃料泵的泵头的入口阀装置包括可在打开和关闭位置之间移动的入口阀构件（10），以控制从低压燃料源到泵送的流动 燃油泵（6）。 入口阀构件（10）被布置成响应于入口阀构件（10）的入口侧上的燃料的流体压力与泵送室（6）中的流体压力之间的压力差超过阈值而打开 。 入口阀装置（9）包括用于选择性地在入口阀构件（10）上施加关闭力以将其偏压到关闭位置的装置，使得在使用中，所述装置施加的关闭力用于增加 入口阀构件（10）打开的压力差的阈值。

公开(公告)号：EP2326825A1

公开(公告)日：2011-06-01

申请号：EP09785312.1

申请日：2009-07-13

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

Inventor： CHERON, Antonin ,  BUCKLEY, Paul ,  CALVO, Miguel

IPC: F02M59/48 ,  F04B1/04 ,  F04B53/10

CPC classification number: F02M59/485 ,  F02M59/464 ,  F04B53/16 ,  Y10T137/7931 ,  Y10T137/7932

Abstract: A pump head suitable for use in a fuel pump for a common rail fuel injection system, comprises a pump head housing (110) defining a plunger bore (118) and a pumping chamber. (124) Fuel is pressurised within the pumping chamber (124) by a plunger (116) reciprocating within the plunger bore. The pump head housing (110) includes an inlet valve arrangement (132) for controlling fuel flow into the pumping chamber. (146) The inlet valve arrangement includes a valve member moveable between open and closed positions in response to fuel pressure within a gallery (150). The gallery (150) communicates with an external chamber (168) defined by a closure means externally mounted to the pump head housing. (110) In use, the gallery (150) communicates with a source of low-pressure fuel via the external chamber. The pump head housing has a projection (112a) which locates the closure member on the pump head housing (110).

公开(公告)号：EP2326825B1

公开(公告)日：2013-10-16

申请号：EP09785312.1

申请日：2009-07-13

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

Inventor： CHERON, Antonin ,  BUCKLEY, Paul ,  CALVO, Miguel

IPC: F02M59/48 ,  F04B1/04 ,  F04B53/10 ,  F04B53/16

CPC classification number: F02M59/485 ,  F02M59/464 ,  F04B53/16 ,  Y10T137/7931 ,  Y10T137/7932