EP 1088136 A2 20010404 - 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
Application
Priority
- US 9904197 W 19990225
- US 7590698 P 19980225
Abstract (en)
[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.
[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.
IPC 1-7
IPC 8 full level
F02D 1/18 (2006.01); F02M 41/14 (2006.01)
CPC (source: EP)
F02D 1/183 (2013.01); F02M 41/1416 (2013.01)
Citation (search report)
See references of WO 9943896A2
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
WO 9943896 A2 19990902; WO 9943896 A3 19991216; WO 9943896 A9 20000720; AR 017466 A1 20010905; EP 1088136 A2 20010404
DOCDB simple family (application)
US 9904197 W 19990225; AR P990100796 A 19990225; EP 99908502 A 19990225