Valves and valve actuation – Electrically actuated valve – Having means to produce proportional flow
Patent
1992-08-14
1994-06-21
Rivell, John
Valves and valve actuation
Electrically actuated valve
Having means to produce proportional flow
25112918, F16K 3102
Patent
active
053222598
ABSTRACT:
A proportional magnet valve is provided with which manufacturing tolerances can be equalized and balanced by having an armature with an adjustment member axially adjustable. Consequently it is made possible to adjust every magnet valve that is mass produced so that a predetermined coil current corresponds to a predetermined magnet force and with that corresponding to a predetermined working pressure of a magnet valve. Because of adjustment capability of the armature, no close or narrow manufacturing tolerances must be maintained to permit cost advantageous production of the magnet valve. Also, an exchange of a magnet valve upon wear or damaging thereof is possible in a simple and straight forward manner because the novel magnet valve can be adjusted exactly without difficulty. Consequently, a predetermined pressure-current-characterizing line is maintained so that, independently of tolerance position of the magnetic force and the tolerances of hydraulically effective diameter of the structural parts, always the same pressure-current-characterizing line can be attained.
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Sauer Axel
Trzmiel Alfred
Hydraulik--Ring Antriebs- und Steuerungstechnik GmbH
Reuther Albert H.
Rivell John
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