Eaton Corporation

Continental Teves, Ag and Company Ohg

David J Kramer

Joseph Spryshak

Eugene Francis Moody

A solenoid operated spool valve has a dampening reservoir formed at one end of the spool and which is ported for immersion in a fluid sump. The reservoir port is oriented vertically above the spool and a cap with an offset port is received over the reservoir port to baffle fluid flow from the reservoir and prevent the reservoir from draining when the port is fluid starved in the sump.

Solenoid operated spool valve with baffled dampening reservoir port and method of making same

A solenoid operated valve has a moveable armature sealed within an armature guide with a fluid dashpot disposed therein for velocity dampening armature movement as the armature closes an air gap with a stationary pole piece.

Dampening of solenoid operated valve

A method of preventing a vacuum from developing in a low-pressure area of a vehicle anti-lock brake system comprises providing periodically opening normally closed electromagnet valves when brakes are not applied, the valves connecting wheel brakes to a tandem master cylinder by low pressure lines passing through the low-pressure area. As a result, pressures in a tandem master cylinder of the system and the low-pressure area level off and thus a vacuum trapped in the low-pressure area is eliminated.

Growing community of inventors

Rochester Hills, MI, United States of America

David J Kramer