Valves and valve actuation – Mechanical movement actuator – Cam
Patent
1998-09-21
2000-04-11
Walczak, David J.
Valves and valve actuation
Mechanical movement actuator
Cam
251218, 251251, F16K 3144
Patent
active
060479493
ABSTRACT:
A fluid flow control valve which is mechanically programmable to enable the control of flow rate and/or timing of the supply of fluid therethrough. The valve comprises a housing having an inlet and outlet portion. An axially extending passageway within the housing is in fluid communication with the inlet portion. A fluid flow control and timing mechanism is disposed within the axially extending passageway and configured to travel a defined path(s) along the axis thereof when pressurized fluid is supplied to the passageway. The fluid flow control and timing mechanism is configured to cooperate with the outlet portion to control the timing and flow rate of fluid therethrough. To enable the flow control mechanism to traverse the defined path(s) of travel, a biasing mechanism is associated with the fluid flow control and timing mechanism to respond to the application of pressurized fluid into the axially extending passageway. The invention provides a mechanically programmable valve which is particularly useful for controlling the flow of fluids without the need for electrically actuated control systems.
REFERENCES:
patent: 1758419 (1930-05-01), Wheaton
patent: 2108534 (1938-02-01), Herrmann
patent: 3183934 (1965-05-01), Miner
patent: 4067358 (1978-01-01), Streich
Gilliam Frank D.
Walczak David J.
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