Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1997-05-09
1999-03-23
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
2395334, 2395338, 2395339, 25112906, F02M 6120
Patent
active
058848487
ABSTRACT:
An improved fuel injector for providing precise control over injection timing, quantity and rate shape is provided which includes a piezoelectric actuator for compressing actuating fluid in an actuating fluid circuit which includes a fluid chamber positioned adjacent a needle valve element and fluidically separate from a fuel supply circuit for supplying high pressure fuel for injection. Actuating fluid pressure in the chamber acts on the needle valve element to initiate injection. A fuel pressure balancing device is provided for balancing the fuel pressure forces acting on the needle valve element while the element is in both the closed and open positions thereby permitting the piezoelectric actuator to more precisely and predictably control the rate of movement, and the extent of movement, of the needle valve element.
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Crofts John D.
Muntean George L.
Brackett Jr. Tim L.
Cummins Engine Company, Inc.
Deal David
Kashnikow Andres
Leedom Jr. Charles M.
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