Fluid handling – Systems – Multi-way valve unit
Patent
1984-10-17
1986-09-02
Chambers, A. Michael
Fluid handling
Systems
Multi-way valve unit
13762525, 13762562, 251337, 267160, F16K 11065, F16K 31126
Patent
active
046090126
ABSTRACT:
A housing has an inner area defined by end walls, side walls, a top wall, and a bottom wall having a flat inner surface. Inlet and outlet ports open through the flat inner surface. The inlet port is arranged to be connected to a supply source of pneumatic pressure and the outlet ports are arranged to be connected to an actuator. A control member in the housing has a pair of recesses facing the inner surface in association with the inlet and outlet ports. The control member is suspended by a pair of leaf springs which allow a high response of the control member with a low signal pressure. The leaf springs are engineered and tested precisely considering the compression or columnar force acting endwise thereon as a result of the working pressure in the valve. At the same time the leaf springs have lateral deflection sufficient for operation of the control member 54 without buckling. A diaphragm is controlled by a pneumatic correction signal force from a low pressure sensor circuit and is arranged under the influence of such signal force to selectively position the control member relative to the inlet and outlet ports for controlling power to the actuator.
REFERENCES:
patent: 2883176 (1959-04-01), Bernstein
patent: 3071157 (1963-01-01), Robertson et al.
patent: 3098595 (1963-07-01), Shelton
patent: 3159170 (1964-12-01), Callan
patent: 3674236 (1972-07-01), Commarmot
patent: 3701365 (1972-10-01), Abdo
patent: 4322063 (1982-03-01), Fischbeck et al.
Fluid Power Control (Blackburn et al., MIT Press, 1960, pp. 241 and 242).
Lee, Shih-Ying, "Contributions to Hydraulic Control"; American Society of Mechanical Engineers Transactions, vol. 76 (1954), pp. 905-911.
Chambers A. Michael
Eckelman Eugene M.
Fife Robert L.
Fox John C.
LandOfFree
Servo valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Servo valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servo valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1092550