Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1996-06-12
1998-02-17
Jacyna, J. Casimer
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
2395339, 239584, 123445, 123467, F02M 4700
Patent
active
057183856
ABSTRACT:
A fuel injection valve for an internal combustion engine comprises a valve body structure including a nozzle part formed with a needle passage having at least one nozzle passage at one end, a primary control chamber spaced along the needle passage from the nozzle passage, and a secondary control chamber. The primary control cheer is connected in use to a duct for supplying fuel under pressure. The nozzle part of the valve body structure has a seating surface between the nozzle passage and the primary control chamber. A needle structure is fitted slidably in the needle passage with one end of the needle structure proximate the seating surface. The needle structure has a first control surface that is exposed to pressure of fluid in the primary control chamber, a second control surface at the end of the needle structure proximate the seating surface, and a third control surface exposed to pressure of fluid in the secondary control chamber. The three control surfaces are disposed so that force generated by fluid pressure acting on each of these surfaces has a component urging the needle structure away from the seating surface against the force of a needle return spring. A control valve has a first position in which it communicates pressure of fuel in fuel supply duct to the secondary control chamber and a second position in which it cuts off the pressure of fuel in the fuel supply duct from the secondary control chamber. When the control valve is in its first position, it is urged by the pressure of fuel in the fuel supply duct toward its second position against the force of a control valve return spring.
REFERENCES:
patent: 4165724 (1979-08-01), Yamamoto et al.
patent: 4167168 (1979-09-01), Yamamoto
patent: 4317541 (1982-03-01), Beardmore
patent: 4470545 (1984-09-01), Deckard et al.
patent: 4684067 (1987-08-01), Cotter et al.
patent: 4687136 (1987-08-01), Ozu et al.
patent: 4852808 (1989-08-01), Yamamoto
patent: 4993637 (1991-02-01), Kanesaka
patent: 5263645 (1993-11-01), Paul et al.
patent: 5529024 (1996-06-01), Wirbeleit et al.
Jacyna J. Casimer
Wartsila Diesel International Ltd Oy
LandOfFree
Control arrangement for a fuel injection valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control arrangement for a fuel injection valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control arrangement for a fuel injection valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1778279