Global Patent Index - EP 1088136 A2

EP 1088136 A2 2001-04-04 - ROTARY PUMP CONTROL RESPONSIVE TO CAM REACTION FORCES

Title (en)

ROTARY PUMP CONTROL RESPONSIVE TO CAM REACTION FORCES

Title (de)

REGELUNG FÜR ROTATIONSPUMPEN MITTELS NOCKENREAKTIONSKRÄFTEN

Title (fr)

COMMANDE DE POMPE ROTATIVE REAGISSANT AUX FORCES DE MANOEUVRE PAR CAME

Publication

EP 1088136 A2 (EN)

Application

EP 99908502 A

Priority

  • US 9904197 W
  • US 7590698 P

Abstract (en)

[origin: WO9943896A2] A control system for a rotary fuel injection pump (56) which has a timer piston (62), controlled by an timer motor (64), for adjusting the injection timing of the pump. The timer piston includes a housing containing a volume of hydraulic fluid which subjected to a pressure pulse having a peak pressure during each pumping event. A pressure transducer (70) mounted to the timer piston housing is responsive to the pressure of the hydraulic fluid and provides a pressure signal output indicative of the pressure of the hydraulic fluid. An engine controller (82) has a signal input portion in electrical communication with a top dead center detector (76), the pressure transducer (70), an engine control portion in electrical communication with the signal input portion, and the timer control motor (64). The signal input portion of the engine controller includes a cam position detection section, a pump speed detection section, and a delivered fuel detection section.

[origin: WO9943896A2] A control system for a rotary fuel injection pump which has a timer piston, controlled by an timer motor, for adjusting the injection timing of the pump. The timer piston includes a housing containing a volume of hydraulic fluid which is subjected to a pressure pulse having a peak pressure during each pumping event. A top dead center detector detects when the crankshaft of the diesel engine is at top dead center and provides a TDC reference signal output. A pressure transducer mounted to the timer piston housing is responsive to the pressure of the hydraulic fluid and provides a pressure signal output indicative of the pressure of the hydraulic fluid. An engine controller has a signal input portion in electrical communication with the top dead center detector and the pressure transducer and an engine control portion in electrical communication with the signal input portion and the timer control motor. The signal input portion of the engine controller includes a pump speed detection section providing a pump speed signal, and a delivered fuel detection section providing a quantity of delivered fuel signal.

IPC 1-7 (main, further and additional classification)

E02F 1/00

IPC 8 full level (invention and additional information)

F02D 1/18 (2006.01); F02M 41/14 (2006.01)

CPC (invention and additional information)

F02D 1/183 (2013.01); F02M 41/1416 (2013.01)

Citation (search report)

See references of WO 9943896A3

Designated contracting state (EPC)

FR GB

EPO simple patent family

WO 9943896 A2 19990902; WO 9943896 A3 19991216; WO 9943896 A9 20000720; AR 017466 A1 20010905; EP 1088136 A2 20010404

INPADOC legal status


2002-04-24 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010301

2001-11-28 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7F 02M 59/20 A

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000825

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): FR GB