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1. (WO2018089614) SOLENOID VALVE ASSEMBLY WITH PILOT PRESSURE CONTROL

Pub. No.:    WO/2018/089614    International Application No.:    PCT/US2017/060829
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Nov 10 00:59:59 CET 2017
IPC: G01M 3/02
F16K 31/06
F16K 15/18
Applicants: EATON CORPORATION
Inventors: AMBROSE, Steven L.
BAMBER, Daniel
DAYTON, Robert A.
Title: SOLENOID VALVE ASSEMBLY WITH PILOT PRESSURE CONTROL
Abstract:
A valve assembly includes a valve body with an interior cavity and one or more supply ports, a control port, and an exhaust port each fluidly connected to the interior cavity. An armature assembly is movable within the interior cavity from a first position to a second position in response to the coil being energized. In some configurations, a regulator body, which is connected to the valve body, has an exhaust passage fluidly connected to the exhaust port. A regulator valve in the regulator body prevents fluid flow out of the exhaust passage when fluid pressure on the regulator valve is at or below a pilot pressure. The regulator valve permits fluid flow out of the exhaust passage when fluid pressure on the regulator valve is greater than the pilot pressure. The valve body is configured to provide fluid from the supply port/ports to the control port.