Linear solenoid valve

Details Linear solenoid valve Linear solenoid valve

1997-12-11

1999-09-07

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

2511291, 335229, 335256, F15B 13044

Patent

active

059471557

ABSTRACT:
A linear solenoid valve is composed of a pressure regulating section and an actuator section. In the pressure regulating section, a valve spool is slidably disposed and is biased in one direction by a single elastic member. The actuator section generates a thrust force and transmits that generated thrust force in an opposite direction to the pressure regulating section via a shaft. The actuator section is a movable magnet type linear actuator which includes three serially disposed coils and two permanent magnets disposed within the coils with like poles of the permanent magnets facing each other. The linear solenoid valve generates a stable control pressure which is large in proportion to input current, while generation of hysteresis and of radial load in the actuator section is avoided and responsiveness is improved.

REFERENCES:
patent: 4071042 (1978-01-01), Lombard et al.
patent: 4316599 (1982-02-01), Bouvet et al.
patent: 4579145 (1986-04-01), Leiber et al.
patent: 4838517 (1989-06-01), Miki et al.
patent: 5259414 (1993-11-01), Suzuki

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