Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-02-17
1998-11-24
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
123500, 2395337, F02M 4700, F02M 5902, F02M 6108
Patent
active
058394117
ABSTRACT:
A rotary fuel pump and fuel injectors including a combination spark plug/fuel injector are described. The rotary fuel pump includes a camshaft carrying an eccentric cam. A plurality of rocker arms follow the cam and cause a plurality of plungers in fuel pumps to reciprocate pumping fluid with each plunger stroke. The rocker arms may include cooperating radially inner and outer rocker arms interposed between the eccentric cam and the plungers and having pivots which may be moved with respect to one another to varying the displacement of the plunger strokes. The fuel injector includes a housing having a plunger bore and a fuel inlet bore in fluid communication with one another. A plunger reciprocates within the plunger bore and has a valve seat is biased closed against a valve seat on the housing by elastomeric O-rings. The O-rings seal between the plunger and the plunger bore. Pressurized fluid pressing upon the plunger may overcome the bias allow fuel to sprayed from the plunger bore. An insulator may be provided between the housing and the plunger and with a fuel inlet bore connecting the fuel bore of the housing with the plunger bore. Electrical current and pressurized fuel may be supplied to the fuel injector to causing the fuel to be sprayed from the plunger bore and a spark to be produce across a spark gap formed between the housing and plunger.
REFERENCES:
patent: 1775635 (1930-09-01), Ball
patent: 1830046 (1931-11-01), White
patent: 1934108 (1933-11-01), Walker
patent: 2020624 (1935-11-01), Thaheld
patent: 3482554 (1969-12-01), Marthins
patent: 3572209 (1971-03-01), Aldridge
patent: 4331108 (1982-05-01), Collins
patent: 4350301 (1982-09-01), Erwin et al.
patent: 4408577 (1983-10-01), Killian
patent: 4974553 (1990-12-01), Murray et al.
LandOfFree
Rotary fuel pump and combination fuel injector/spark plug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary fuel pump and combination fuel injector/spark plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary fuel pump and combination fuel injector/spark plug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1693736