Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1982-05-20
1985-07-02
Nilson, Robert G.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
13759617, F16K 3110
Patent
active
045262039
ABSTRACT:
An electromagnetic valve having an armature isolated from the flow of pressure medium and a valve actuated by the armature via a push rod. The armature is variously excitable at various current intensities (i.sub.1, i.sub.2) and is accordingly capable of assuming three different positions. In this manner, a three-position magnetic valve is created which in its neutral positions keeps open a flow of pressure medium to a consumer while closing a leakage conduit. In its second position, the valve closes off the consumer, and in its third position it connects the consumer with a return flow conduit. The electromagnetic valve is usable preferably in anti-wheel-locking apparatuses in motor vehicles.
REFERENCES:
patent: 3921666 (1975-11-01), Leiber
patent: 3970111 (1976-07-01), Brune
patent: 3989063 (1976-11-01), Brouwers
patent: 4312380 (1982-01-01), Leiber et al.
Greigg Edwin E.
Nilson Robert G.
Robert & Bosch GmbH
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