Control mechanism for fuel injection pump

Details Control mechanism for fuel injection pump Control mechanism for fuel injection pump

2006-05-30

2006-05-30

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

C123S362000, C123S366000, C123S179170

Reexamination Certificate

active

07051706

ABSTRACT:
A control mechanism for a fuel injection pump comprises: an electronic governor which actuates a rack actuator by a controller for controlling a governing rack; and a cold start device which actuates an injection-quickening actuator by the controller for opening or closing a draining sub port formed in a plunger barrel so as to advance injection timing when an engine is cold. Different settings about control degree of the governing rack controlled by the controller are prepared for a case where the injection-quickening actuator is actuated to switch on the cold start device (as characteristic curve61a), and for a case where the injection-quickening actuator is disactuated to switch off the cold start device (as characteristic curve61b), respectively.

REFERENCES:
patent: 4112897 (1978-09-01), Hufendiek
patent: 4368705 (1983-01-01), Stevenson et al.
patent: 57 144230 (1982-09-01), None
patent: 10 325339 (1998-12-01), None
patent: 2000-234576 (2000-08-01), None
International Search Report for International Application No. PCT/JP2004/005222; Mailed: Jun. 29, 2004.

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