公开(公告)号：EP2492506A1

公开(公告)日：2012-08-29

申请号：EP11156280.7

申请日：2011-02-28

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

Inventor： McHattie, James

IPC: F04B1/04 ,  F04B53/16 ,  F04B53/12 ,  F02M37/04

CPC classification number: F04B1/0421 ,  F02M59/102 ,  F04B1/0452 ,  F04B53/12 ,  F04B53/16

Abstract: A pumping head (200;300) for a high-pressure fuel pump is disclosed. The pumping head comprises a head housing (204) having a bore (206), a pumping element (202) arranged for reciprocal linear movement along a pumping axis (Q), a first pumping chamber (240) and a second pumping chamber (242), inlet means (290;314) for delivering fluid to the first pumping chamber (240), outlet means (246,248) for conveying fluid from the second pumping chamber (242) to an outlet (244) of the pumping head, and transfer means (260,262) for conveying fluid from the first pumping chamber (240) to the second pumping chamber (242). Each forward stroke of the pumping element (202) increases a volume of the first pumping chamber (240) and decreases a volume of the second pumping chamber (242), thereby to cause fluid to flow into the first pumping chamber (240) from the inlet means (290;314) and to cause fluid to flow out of the second pumping chamber (242) to the outlet means (246,248). Each return stroke of the pumping element (202) decreases the volume of the first pumping chamber (240) and increases the volume of the second pumping chamber (242), thereby to cause fluid to flow from the first chamber (240) to the second chamber (242) through the transfer means (260,262).

Abstract translation: 公开了一种用于高压燃料泵的泵头（200; 300）。 泵头包括具有孔（206）的头部外壳（204），布置成沿泵送轴线（Q）往复线性运动的泵送元件（202），第一泵送室（240）和第二泵送室 ，用于将流体输送到第一泵送室（240）的入口装置（290; 314），用于将流体从第二泵送室（242）输送到泵送头的出口（244）的出口装置（246,248） 用于将流体从第一泵送室（240）输送到第二泵送室（242）的装置（260,262）。 泵送元件（202）的每个前进行程增加了第一泵送室（240）的体积并且减小了第二泵送室（242）的体积，从而使流体从第一泵送室（240）流入第一泵送室（240） 入口装置（290; 314）并且使流体从第二泵送室（242）流出到出口装置（246,248）。 抽吸元件（202）的每个返回行程减小第一泵送室（240）的容积并增加第二泵送室（242）的体积，从而使流体从第一室240流到第二泵室240。 室（242）通过传送装置（260,262）。

公开(公告)号：EP2492490A1

公开(公告)日：2012-08-29

申请号：EP11156272.4

申请日：2011-02-28

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

Inventor： McHattie, James ,  Garland, Paul

IPC: F02M59/10 ,  F04B9/04

CPC classification number: F02M59/102 ,  F04B1/0413 ,  F04B9/042

Abstract: A pumping assembly (100; 200) suitable for use as a high-pressure fuel pump of a fuel injection system is disclosed. The pumping assembly comprises a cam (104; 204) arranged for eccentric rotation about a drive shaft axis (A), a cam rider (106; 206) mounted on the cam (104; 204), a cam follower (112; 212) arranged for reciprocal movement in a direction parallel to a cam follower axis (Q), the cam follower (112; 212) being cooperable with the rider (106; 206) by way of a sliding interface (110, 116; 210, 216) to define a sliding axis (S), and a pumping element associated with the cam follower (112; 212) and arranged to reduce the volume of a pumping chamber during a forward stroke and to increase the volume of the pumping chamber during a reverse stroke. The rider (106; 206) is driveable by the cam (104; 204) in a direction having a first component parallel to the cam follower axis (Q) and a second component in a direction perpendicular to the cam follower axis (Q). In one embodiment, the sliding axis (S) is inclined at a non-perpendicular angle to the cam follower axis (Q), such that both the first component and the second component of movement of the rider (106; 206) give rise to movement of the cam follower (112; 212) in the direction parallel to the cam follower axis (Q). In another embodiment, the cam follower (212) comprises first and second surfaces (216, 216a) that cooperate with the rider (206) at the first and second sliding interfaces (210, 216; 210a, 216a), respectively, and the forward stroke of the pumping element is driven when the rider (206) thrusts against the first surface (216) during movement of the rider (206) and the return stroke of the pumping element is driven when the rider (206) thrusts against the second surface (216a) during movement of the rider (206).

Abstract translation: 公开了一种适用于燃料喷射系统的高压燃料泵的泵组件（100; 200）。 泵送组件包括布置成围绕驱动轴线（A）偏心旋转的凸轮（104; 204），安装在凸轮（104; 204）上的凸轮骑行器（106; 206），凸轮从动件（112; 212） 布置成在平行于凸轮从动轴线（Q）的方向上的往复运动，所述凸轮从动件（112; 212）通过滑动界面（110,116; 210,216）与所述骑手（106; 206）配合; 以限定滑动轴线（S），以及与凸轮从动件（112; 212）相关联并被布置成在向前冲程期间减小泵送室的体积并且在逆冲程期间增加泵送室的体积的泵送元件 。 骑乘者（106; 206）可以通过凸轮（104; 204）沿着与凸轮从动轴（Q）平行的第一部件的方向和与凸轮从动轴（Q）垂直的方向上的第二部件驱动。 在一个实施例中，滑动轴线（S）以与凸轮从动轴线（Q）非垂直的角度倾斜，使得骑乘者（106; 206）的第一部件和第二移动部件都产生 凸轮从动件（112; 212）沿与凸轮从动轴（Q）平行的方向的运动。 在另一个实施例中，凸轮从动件（212）包括分别在第一和第二滑动界面（210,216; 210a，216a）处与骑手（206）配合的第一和第二表面（216,216a），并且前进 当骑手（206）在骑手（206）的运动期间，骑手（206）推动抵靠第一表面（216）时，驱动泵送元件的行程，并且当骑手（206）推靠第二表面时驱动泵送元件的返回行程 （216a）移动期间（216a）。

公开(公告)号：EP2492507A1

公开(公告)日：2012-08-29

申请号：EP11156278.1

申请日：2011-02-28

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

Inventor： McHattie, James

IPC: F04B7/04 ,  F04B9/04 ,  F04B3/00 ,  F02M59/10

CPC classification number: F04B7/04 ,  F02M37/045 ,  F02M59/102 ,  F04B3/003 ,  F04B9/042

Abstract: A pumping assembly having a high-pressure pumping stage and an integrated transfer pumping stage. The pumping assembly comprises a cam (104;204) arranged for eccentric rotation about a drive shaft axis (A), a cam rider (106;206), a cam follower (112;212), the cam follower (112;212) having reciprocal movement parallel to a cam follower axis (Q) that is perpendicular to the drive shaft axis (A), a high-pressure pumping head having a high-pressure pumping chamber, and a pumping element driven by the cam follower (112;212). The pumping assembly further comprises a first chamber (150a;250a), inlet means (174;274) for allowing fluid flow into the first chamber (150a;250a), and outlet means (150b,163,166,166a;250b,263,266,266a) for receiving fluid from the first chamber (150a;250a) and for delivering fluid to the high-pressure pumping head. Rotation of the cam (104;204) about the driveshaft axis (A) causes an increase in volume of the first chamber (150a;250a) during a first part of the pumping cycle and a decrease in volume of the first chamber (150a;250a) during a second part of the pumping cycle, so as to effect a transfer pumping of fluid from the inlet means (174;274) to the outlet means (150b,163,166,166a;250b,263,266,266a) for delivery to the high-pressure pumping head.

Abstract translation: 具有高压泵送级和集成式输送泵级的泵送组件。 所述泵送组件包括布置成围绕驱动轴线（A）偏心旋转的凸轮（104; 204），凸轮骑手（106; 206），凸轮从动件（112; 212），所述凸轮从动件（112; 212） 具有平行于垂直于驱动轴轴线（A）的凸轮从动轴线（Q）的往复运动，具有高压泵送室的高压泵头和由凸轮从动件（112; 112）驱动的泵送元件。 212）。 抽吸组件还包括第一室（150a; 250a），用于允许流体流入第一室（150a; 250a）的入口装置（174; 274）和出口装置（150b，163,166,166a; 250b，263,266,266a） 从第一室（150a; 250a）接收流体并将流体输送到高压泵送头。 凸轮（104; 204）围绕驱动轴轴线（A）的旋转导致在泵送循环的第一部分期间第一腔室（150a; 250a）的体积增加，并且第一腔室（150a; 250a）的体积减小; 在泵送循环的第二部分期间，以便将流体从入口装置（174; 274）传送到出口装置（150b，163,166,166a; 250b，263,266,266a）以便输送到高压泵 压力泵头。

公开(公告)号：EP2492491A1

公开(公告)日：2012-08-29

申请号：EP11156279.9

申请日：2011-02-28

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

Inventor： McHattie, James

IPC: F02M59/10 ,  F04B9/04

CPC classification number: F02M59/102 ,  F04B1/0404 ,  F04B9/04

Abstract: A pumping assembly (100) suitable for use as high-pressure fuel pump in a fuel injection system is disclosed. The pumping assembly comprises drive means comprising a drive plate (114) rotatable about a drive axis (A) and including a recess (120) arranged eccentrically with respect to the drive axis (A); a guide arrangement (122, 122a) received, at least in part, in the recess (120) of the drive plate (114) so that rotary movement of the drive plate (114) gives rise to translatory movement of the guide arrangement (122, 122a); a pumping element (108); and a slide member (112) associated with the pumping element (108). The slide member (112) is in sliding engagement with the guide arrangement (122, 122a) to define at least one sliding interface (196, 198) between the guide arrangement (122, 122a) and the slide member (112), such that rotary movement of the drive plate (114) causes reciprocal linear movement of the pumping element (108) along a pumping axis (Q).

Abstract translation: 公开了一种适用于燃料喷射系统中的高压燃料泵的泵组件（100）。 泵送组件包括驱动装置，其包括可围绕驱动轴线（A）旋转并包括相对于驱动轴线（A）偏心布置的凹部（120）的驱动板（114）。 至少部分地容纳在驱动板（114）的凹部（120）中的引导装置（122,122a），使得驱动板（114）的旋转运动导致引导装置（122）的平移运动 ，122a）; 泵送元件（108）; 以及与所述泵送元件（108）相关联的滑动构件（112）。 滑动构件（112）与导向装置（122,122a）滑动接合以在引导装置（122,122a）和滑动构件（112）之间限定至少一个滑动界面（196,198），使得 驱动板（114）的旋转运动导致泵送元件（108）沿泵送轴线（Q）的往复线性移动。

公开(公告)号：EP2492492A1

公开(公告)日：2012-08-29

申请号：EP11156276.5

申请日：2011-02-28

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

Inventor： McHattie, James ,  Garland, Paul

IPC: F02M59/20 ,  F02M59/26 ,  F02M59/34 ,  F02M59/46

CPC classification number: F02M59/34 ,  F02M59/205 ,  F02M59/462 ,  F02M2700/1352

Abstract: A pumping head (100; 200) for a high-pressure fuel pump is disclosed. The pumping head comprises a head housing (101; 201) having a bore (106), a pumping element (104) slidably received within the bore (106) and arranged for reciprocal linear movement along a pumping axis (A), a pumping chamber (110) defined in part by the pumping element (104) and in part by the bore (106), wherein a forward stroke of the pumping element (104) causes a reduction in volume of the pumping chamber (110), and a return stroke of the pumping element (104) causes an increase in volume of the pumping chamber (110), inlet means (130; 230) for delivering fluid at relatively low pressure to the pumping chamber (110) during the return stroke. and outlet means (114) for receiving fluid at relatively high pressure from the pumping chamber (110) during the forward stroke and for delivering the relatively high-pressure fluid to an outlet (128) of the pumping head. The pumping element (104) cooperates with the inlet means (130; 230) to restrict the flow of fluid between the inlet means (130; 230) and the pumping chamber (110) during at least a part of the forward stroke so that the inlet means is not exposed to the relatively high-pressure fluid. Preferably, the outlet means (114, 124) is arranged to convey fluid from the pumping chamber (110) to the outlet (128) in a fluid flow direction that is substantially coaxial with the pumping axis (A).

Abstract translation: 公开了一种用于高压燃料泵的泵头（100; 200）。 泵头包括具有孔（106）的头部壳体（101; 201），可滑动地容纳在孔（106）内并且布置成沿泵送轴线（A）往复线性移动的泵送元件（104），泵送室 （104）的一部分和部分由所述孔（106）限定的所述泵送元件（110），其中所述泵送元件（104）的向前行程导致所述泵送室（110）的体积减小，并且返回 泵送元件（104）的冲程导致泵送室（110）的体积增大，入口装置（130; 230）用于在返回冲程期间以相对低的压力将流体输送到泵送室（110）。 以及用于在向前行程期间从泵送室（110）接收相对较高压力的流体并用于将相对高压流体输送到泵送头的出口（128）的出口装置（114）。 所述泵送元件（104）与所述入口装置（130; 230）配合以在所述前进行程的至少一部分期间限制所述入口装置（130; 230）与所述泵送室（110）之间的流体流动， 入口装置不暴露于相对高压的流体。 优选地，所述出口装置（114,124）被布置成沿着与所述泵送轴线（A）基本同轴的流体流动方向将流体从所述泵送腔室（110）输送到所述出口（128）。