Device for adjusting the onset of supply for a fuel injection pu

Details Device for adjusting the onset of supply for a fuel injection pu Device for adjusting the onset of supply for a fuel injection pu

1992-06-08

1993-03-16

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123501, 123509, F02M 3704

Patent

active

051935104

ABSTRACT:
The invention relates to a device for adjusting the supply onset of a fuel injection pump for internal combustion engines, by means of which the injection onset is adjustable in several stages. A roller tappet provided with a hydraulic tappet chamber for prestroke variation is fixable in defined positions via a control fluid. To this end the roller tappet has at least one first control bore and one second control bore communicating with the tappet chamber and can be made to communicate with openings in a housing bore that receives the tappet. The control bores are provided at differing heights, and/or with differing diameters or are offset from one another, at least one of the these control bores is closable by means of a control piston of the hydraulic tappet, and the control bores are openable as a function of an engine parameter via hydraulic lines.

REFERENCES:
patent: 2863438 (1958-12-01), Challis
patent: 3859973 (1975-01-01), Dreisin
patent: 4249499 (1981-02-01), Perr
patent: 4407241 (1983-10-01), Butler
patent: 4419977 (1983-12-01), Hillebrand
patent: 4422424 (1983-12-01), Luscomb
patent: 4494514 (1985-01-01), Augustin
patent: 4617903 (1986-10-01), Heberlee
patent: 4625700 (1986-12-01), Elsbett
patent: 4760831 (1988-08-01), Altdorf
patent: 4790731 (1988-12-01), Freudenschuss

Affiliated with

Also associated with

Rating

Device for adjusting the onset of supply for a fuel injection pu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for adjusting the onset of supply for a fuel injection pu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for adjusting the onset of supply for a fuel injection pu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-345997