Solenoid operated valves

Details Solenoid operated valves Solenoid operated valves

1981-10-28

1984-12-04

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

251141, B60T 1368, B60T 808

Patent

active

044860536

ABSTRACT:
An hydraulic control valve and particularly such a valve for use as an automotive brake pressure modulation valve to maintain optimum adhesion and traction between the tire of the vehicle and the road surface during braking when the wheel shows a tendency to lock. The valve comprises one or more solenoid operated valves in which the solenoid core defines a chamber for a fluid under pressure. Preferably the valve member is in the form of a spool connected to or constituting the armature and is slidable within the core. The core has a narrow waisted portion provided to establish a preferred flux part through the armature. This arrangement enables the core of the valve to withstand the necessary operating pressure without the need for complex and carefully controlled welding. Smaller solenoids can be used by pressure balancing the valves.

REFERENCES:
patent: 2853659 (1958-09-01), Herion
patent: 3066988 (1962-12-01), McCrae
patent: 3231233 (1966-01-01), Herion
patent: 3480335 (1969-11-01), Inada
patent: 3671085 (1972-06-01), Pasek et al.
patent: 4067541 (1978-01-01), Hunter

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