Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1990-02-14
1991-07-16
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
25112906, 2513352, F16K 712, F16K 3102, F02M 5106
Patent
active
050318411
ABSTRACT:
A fluid metering valve includes a housing; a nozzle opening; a spring diaphragm supported in the housing and hermetically dividing the inner space of the housing into a first chamber and a second chamber; an inlet provided in the housing for introducing pressurized fluid solely into the second chamber; and a valve needle slidably accommodated in the second chamber and having a closed position in which the valve needle maintains the nozzle opening closed and an open position in which the valve needle maintains the nozzle opening open. The valve needle is connected to the spring diaphragm and is resiliently urged by the spring diaphragm into the closed position. The metering valve further has a valve actuating member disposed in the first chamber and having an energized state and a de-energized state. The valve actuating member is connected to the valve needle for moving the valve needle into the open position against a force of the spring diaphragm when the valve actuating member is energized.
REFERENCES:
patent: 3776263 (1973-12-01), Hubenthal
patent: 4669660 (1987-06-01), Weber et al.
patent: 4695034 (1989-09-01), Shimizu et al.
patent: 4725002 (1988-02-01), Trachte
Kashnikow Andres
Merritt Karen B.
Volkswagen AG
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