Fuel injection valve for internal combustion engines

Details Fuel injection valve for internal combustion engines Fuel injection valve for internal combustion engines

1995-06-05

1997-11-11

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Accumulator plunger biased to discharge fluid

2395333, 2395339, 13762413, F02M 4702

Patent

active

056854838

ABSTRACT:
The opening and closing motion of a control piston effectively connected to an injection valve element is optimally designed in that in addition to a first control space, there is a second control space whose volume and fuel control pressure can be changed by the piston motion. During the opening motion, the pressure in the second control space retards the opening procedure. During the closing motion, the control piston is additionally accelerated by the system pressure when there is a predetermined pressure in the second control space in order to effect rapid closing of the injection openings. Relief elements ensure a pressure balance between the second control space and the high-pressure region. One of the two control spaces is connected to the high-pressure region when there is a predetermined pressure in the second control space.

REFERENCES:
patent: 4870943 (1989-10-01), Bradley
patent: 5094397 (1992-03-01), Peters et al.
patent: 5423484 (1995-06-01), Zuo

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