Linear solenoid-operated valve for use in power steering system

Details Linear solenoid-operated valve for use in power steering system Linear solenoid-operated valve for use in power steering system

1985-10-17

1987-02-17

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251118, 25112907, 25112908, F16K 3106, F16K 4704

Patent

active

046432272

ABSTRACT:
A linear solenoid-operated valve which includes a housing having a first and second ports opening into a bore, and a cylindrical spool formed with a through hole and axially slidable in the bore. A slot is formed at one end of the spool so as to define in combination with the first port a bypass passageway operable to a variable degree upon axial movement of the spool. A chamfer is formed on an intermediate surface of the spool in a direction toward the through hole. A restrictor having an orifice formed therein is provided at the one end of the spool. The spool is spring-biased in a direction to close the bypass passageway, and is shiftable by an energized solenoid to open the bypass passageway.

REFERENCES:
patent: 2744386 (1956-05-01), Gerwig
patent: 3084718 (1963-04-01), Ash
patent: 4274504 (1981-06-01), Kawabata et al.
patent: 4471811 (1984-09-01), Kawabata et al.

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