公开(公告)号：JPS61265349A

公开(公告)日：1986-11-25

申请号：JP3714586

申请日：1986-02-21

Applicant: STANADYNE INC

Inventor： KELLY WILLIAM W

IPC: F02M47/00 ,  F02M45/04 ,  F02M47/02 ,  F02M57/02 ,  F02M59/10

公开(公告)号：BR8701832A

公开(公告)日：1988-01-26

申请号：BR8701832

申请日：1987-04-15

Applicant: STANADYNE INC

Inventor： KELLY WILLIAM W

IPC: F02D41/14 ,  F02B3/06 ,  F02D41/40 ,  F02M41/14 ,  F02M51/04 ,  F02M59/36 ,  F02M51/00

Abstract: An internal combusion engine fuel injection system having a reciprocating charge pump and a bidirectional flow, solenoid valve for precisely regulating the fuel injection timing by precisely regulating the intake charge quantity of fuel supplied to the charge pump during each intake stroke and for precisely regulating the fuel injection quantity by precisely regulating the spill termination of the high pressure delivery of fuel during each pumping stroke. An electrical controller having a data processor timely energizes and deenergizes the solenoid valve and adjusts the charge pump stroke timing, if adjustable, for adjusting the fuel injection timing and quantity. A start-of-pumping sensor or charge pump stroke timing sensor is used to provide a closed loop feedback, or in the alternative where the charge pump stroke is not adjustable, a calibrated input is used in lieu of a charge pump stroke timing sensor.

公开(公告)号：DE3663382D1

公开(公告)日：1989-06-22

申请号：DE3663382

申请日：1986-02-20

Applicant: STANADYNE INC

Inventor： KELLY WILLIAM W

IPC: F02M47/00 ,  F02M45/04 ,  F02M47/02 ,  F02M57/02 ,  F02M59/10

Abstract: An accumulator injector (10) employs a shuttle piston assembly (90) to produce a pilot injection prior to the primary fuel injection of the injector (10) and to control the injection rate. The shuttle piston (90) communicates with the control chamber (58) and the accumulator chamber (86) of the injector to provide a controllable pressure bleed means for controlling the valve needle (70) lift of the injector (10).

公开(公告)号：CA1321327C

公开(公告)日：1993-08-17

申请号：CA581822

申请日：1988-11-01

Applicant: STANADYNE INC

Inventor： DJORDJEVIC ILIJA ,  KELLY WILLIAM W ,  VANDERPOEL RICHARD E

IPC: F02M51/00 ,  F02M45/00 ,  F02M45/06 ,  F02M57/02 ,  F02M59/22 ,  F02M59/36 ,  F02M39/00

Abstract: An electronic unit injector employs an expandable chamber which expands as pressure in the injector increases between a pair of threshold pressures. The expansion of the chamber results in a two-phase rate of injection of the injector whereby the initial injection rate is significantly lower than the second injection rate. In one embodiment, the expandable chamber is formed by a pin which is displaceable in a cap mounted to the injector body. The pin bottoms against the cap to define the phase transition. 23