Electrically controllable 3-way valve

Details Electrically controllable 3-way valve Electrically controllable 3-way valve

1989-02-14

1990-05-08

Michalsky, Gerald A.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

13759617, 25112919, 25112921, F15B 13044

Patent

active

049229664

ABSTRACT:
A known valve controllable by means of an electromagnet includes at least one spring installed with prestressing, the prestressing of which must be within a relatively narrow tolerance range, if the valve is to function properly. Since then, when the valve has been assembled, the spring, which is subject to manufacturing tolerances, and other components subject to manufacturing tolerances, have been replaced with other components of different dimensions until a suitable prestressing was arrived at. The invention seeks to avoid this replacement work. The problem is solved by disposing an element that is displaceably installed so as to overcome frictional forces, and one end of a spring is supported on this element. One or more such elements are advantageously usable in multi-position magnetic valves, which for instance belong to vehicle brake systems and in particular to their anti-skid systems.

REFERENCES:
patent: 3989063 (1976-11-01), Brouwers et al.
patent: 4529166 (1985-07-01), Klausen et al.
patent: 4534382 (1985-08-01), Tanguy
patent: 4640558 (1987-02-01), Nomura et al.

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