Fluid sprinkling – spraying – and diffusing – With means to vibrate or jiggle discharge – By electric transducer
Patent
1985-04-30
1987-01-13
Peters, Jr., Joseph F.
Fluid sprinkling, spraying, and diffusing
With means to vibrate or jiggle discharge
By electric transducer
2395333, 23953312, 23953313, 13751617, 137854, 251 65, B05B 314, B05B 130, F16K 3108, F16K 1500
Patent
active
046358498
ABSTRACT:
A piezoelectric fuel injector for use in fuel injection systems of spark-ignition engines is provided with a normally closed valve assembly in the form of a reed valve. The valve assembly includes a valve plate having one or more outlet ports having an overall cross-sectional flow area sufficient to ensure an unobstructed flow path therethrough. The valve assembly also includes a generally flat, thin, resilient closure member cooperating with the valve set of the valve plate. The pressure wave created in the fuel in the pumping chamber upon excitation of the piezoelectric actuator propagates into the outlet ports to directly reach the thin closure member, which readily resiliently yields to permit a desired amount of fuel to be injected into the engine cylinders. The fuel injector is particularly suitable to be operated by a high-frequency drive signal in order to ensure precise metering of fuel quantity over a wide range of engine operating conditions.
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Abe Seiko
Igashira Toshihiko
Izawa Akihiro
Sakakibara Yasuyuki
Takigawa Masahiro
Burkhart Patrick N.
Nippon Soken Inc.
Peters Jr. Joseph F.
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