Changeover valve for controlling the throughflow of a pressure m

Details Changeover valve for controlling the throughflow of a pressure m Changeover valve for controlling the throughflow of a pressure m

1984-03-20

1987-05-12

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

1376255, 251 68, 251 65, F16K 11048, F16K 3108

Patent

active

046641505

ABSTRACT:
The valve seats and the valve stem of the changeover valve have different diameters from one another so that the pressure medium applied a drive force to actuate the valve. The control system is a simple and purely passive retention system without external drive, the retention being triggered by a pulse-like electric signal. The signal energy produced and transmitted within electronic control systems suffices to actuate the valve, no additional drives being necessary for such actuation.

REFERENCES:
patent: 122544 (1872-01-01), Westinghouse, Jr.
patent: 212972 (1879-03-01), Osgood
patent: 775054 (1904-11-01), Waterman
patent: 961821 (1910-06-01), Walker
patent: 2273171 (1942-02-01), Bennett
patent: 2410079 (1958-10-01), Beeghly
patent: 2980139 (1961-04-01), Lynn
patent: 3727631 (1973-04-01), Suezawa et al.
patent: 4051862 (1977-10-01), Haytayan
patent: 4128110 (1978-12-01), Haytayan
patent: 4253493 (1981-03-01), English

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