公开(公告)号：WO2016122826A1

公开(公告)日：2016-08-04

申请号：PCT/US2015/068254

申请日：2015-12-31

Applicant: CATERPILLAR INC.

Inventor： STEFFEN, Joshua, W. ,  COLDREN, Dana, R. ,  STOCKNER, Alan, R. ,  MAHMOOD, Sana ,  CAMPION, Robert, M. ,  BEAN, Sunil Jefferey

IPC: F02M21/02 ,  F04B1/16 ,  F04B15/08

CPC classification number: F04B1/143 ,  F04B1/16 ,  F04B15/08 ,  F04B2015/081

Abstract: A pumping mechanism (300) includes a barrel assembly (310) having a plunger bore (320). The plunger bore (320) has a longitudinal axis. The pumping mechanism (300) also includes a plunger (330) configured to slide within the plunger bore (320) parallel to the longitudinal axis. The pumping mechanism (300) further includes a push rod (114) separate from the plunger (330). The push rod (114) is configured to move away from the plunger (330) to be spaced from the plunger (330), and the push rod (114) is further configured to move within the plunger bore (320) to push the plunger (330).

Abstract translation: 泵送机构（300）包括具有柱塞孔（320）的筒组件（310）。 柱塞孔（320）具有纵向轴线。 泵送机构（300）还包括柱塞（330），其被构造成在柱塞孔（320）内平行于纵向轴线滑动。 泵送机构（300）还包括与柱塞（330）分离的推杆（114）。 推杆（114）构造成远离柱塞（330）移动以与柱塞（330）间隔开，并且推杆（114）进一步构造成在柱塞孔（320）内移动以推动柱塞 （330）。

公开(公告)号：WO1993007381A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009682

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  CAMPION, Robert, M.

IPC: F02M57/02

CPC classification number: F02D41/062 ,  F02B2075/1832 ,  F02B2275/14 ,  F02D41/3836 ,  F02F7/006 ,  F02M57/025 ,  F02M59/48 ,  F02M61/168 ,  F02M2200/304 ,  Y02T10/123

Abstract: Methods of starting a hydraulically-actuated electronically-controlled fuel injection system (10) are disclosed. One method comprises the steps of pressurizing actuating fluid used to actuate a unit injector (18) and actuating an electrical actuator assembly (36) of the unit injector (18) to cause fuel injection only when the pressure of the actuating fluid is at least equal to a selected minimum level. This method of the present invention ensures that the unit injector (18) does not diminish the pressure of the actuating fluid until the pressure has reached a selected minimum level required to effect fuel injection. This method allows the pumping capacity of the high pressure actuating fluid pump (332) to be minimized while ensuring quick starting of an engine (12) by the fuel system (10).