Rate shaping control valve for fuel injection nozzle

Details Rate shaping control valve for fuel injection nozzle Rate shaping control valve for fuel injection nozzle

1994-06-28

1996-04-09

Merritt, Karen B.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239 92, F02M 4700

Patent

active

055053840

ABSTRACT:
A fuel injector nozzle assembly has a housing defining a blind bore and at least one injection orifice at the bottom portion thereof and a fuel injection passage fluidly connecting the bottom portion of the blind bore and a source of pressurized fluid. A primary check is disposed in the blind bore. A spring between the housing and the check establishes a first valve opening pressure. A secondary check is slidably disposed in the fuel injection passage, defining an aperture therethrough. A secondary check spring is disposed between the secondary check and the housing, establishing a second valve opening pressure.

REFERENCES:
patent: 2560799 (1951-07-01), Johnson
patent: 3342422 (1967-09-01), Millington et al.
patent: 3391871 (1968-07-01), Fleischer et al.
patent: 3456884 (1969-07-01), Knight et al.
patent: 4081140 (1978-03-01), Kranc
patent: 4527738 (1985-07-01), Martin
patent: 4958771 (1990-09-01), Klomp
patent: 5020500 (1991-06-01), Kelly
patent: 5287838 (1994-02-01), Wells

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