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1. (WO2018026472) HIGH FLOW DIRECT ACTING VALVE

Pub. No.:    WO/2018/026472    International Application No.:    PCT/US2017/041474
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Wed Jul 12 01:59:59 CEST 2017
IPC: B60C 23/00
F16K 31/06
F16K 1/36
Applicants: PARKER-HANNIFIN CORPORATION
Inventors: QI, Yufeng
KNEPPLE, Robert Brian
JABCON, Leonard Joseph
Title: HIGH FLOW DIRECT ACTING VALVE
Abstract:
A novel valve that may include a self-energizing seal member with a lobe extending toward a valve seat surface, a radially outwardly extending skirt, an axially extending nose, solenoid-operated three-position valve member, a pressure sense port, and/or a pressure pick-up opening. The features of the valve may allow the valve to operate at higher flow rates while requiring less energy to operate, may have a wider pressure and/or temperature operation range, may allow bidirectional fluid flow, may be less expensive to manufacture, and/or may enable a simple and compact assembly of the valve with a pressure sensor. The self-energizing seal member may include a base portion and the lobe extending may extend at an angle from the base portion relative to a longitudinal axis. The lobe may reduce energy requirements to operate the valve compared to larger sealing contact area seals. For example, the lobe may have a small sealing area to allow the valve to be better balanced.