Fluid-pressure and analogous brake systems – With pump
Patent
1978-03-16
1980-05-06
Eisenzopf, Reinhard J.
Fluid-pressure and analogous brake systems
With pump
222368, 417328, 417519, B60T 1316
Patent
active
042014220
ABSTRACT:
A spring loaded fluid operated valve for use in sensing the speed or rotation of a rotating member, shaft or collar is disclosed. The valve features fluid inlet, outlet and storage chambers, each of which have openings spaced from and selectively aligned relative to one another. A rotating body whose speed of rotation is to be sensed, slidably engages the chamber openings in a fluid tight manner and defines a slot or recess therein which communicates with each of the openings in a repetitive and sequential manner to alternately transfer a portion of the fluid introduced into the inlet chamber to the storage chamber and, thereafter, from the storage chamber to the outlet chamber. In the particular embodiment of the valve disclosed herein, the openings are disposed on a concave base of a housing containing the chambers so as to conform to the circular periphery of the rotating shaft or collar defining the slot. The slot rotates across each of the openings during each revolution of the shaft or collar.
REFERENCES:
patent: 2025821 (1935-12-01), Nordmarken
patent: 3433392 (1969-03-01), Roerig
patent: 3588193 (1971-06-01), Drutches
patent: 3633797 (1972-01-01), Graff
Eisenzopf Reinhard J.
Miller Maurice L.
Miller Jr. Maurice L.
Thomas Harold W.
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