Ultrasonic fuel injector

Details Ultrasonic fuel injector Ultrasonic fuel injector

1992-01-27

1994-07-19

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

2395854, F02M 6106, B05B 1706

Patent

active

053301005

ABSTRACT:
A sealing shaft (23) with a conical male surface (48) is seated in a female conical valve seat (15). Sealing shaft (23) is attached to a pole piece (13) which, when energized by a solenoid coil (30), causes the sealing shaft to be pulled away from valve seat (15), resulting in release of fuel. A hollow ultrasonic horn actuator assembly (54), having a tapered part (11), includes a plurality of crystal actuators (14) to generate and amplify ultrasonic vibrations and to disperse and atomize the fuel as it passes through a narrow opening (45) in ultrasonic horn actuator assembly (54). Tapered part (11) and a compression member (12) are held together by a threaded stud (19). Horn actuator assembly (54) is centered about a sealing shaft (23) for flow of the fuel around the sealing shaft and inside the horn actuator assembly for release to an intake manifold of an engine through small opening (45).

REFERENCES:
patent: 4105004 (1978-08-01), Asai et al.
patent: 4167158 (1979-09-01), Martin et al.
patent: 4237836 (1980-12-01), Tanasawa et al.
patent: 4251031 (1981-02-01), Martin et al.
patent: 4590915 (1986-05-01), Yamauchi et al.
patent: 4723708 (1988-02-01), Berger et al.
patent: 4974780 (1990-12-01), Nakamura et al.
patent: 4978067 (1990-12-01), Berger et al.
patent: 5169067 (1992-12-01), Matsusaka et al.

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