Patent ID: 9121311
Filing Date: 2015-09-01
Classification: F01L,F16K,Y10T

Abstract:
1. A control valve, comprising: a valve body extending along a longitudinal axis, wherein the valve body defines a first valve passageway, a second valve passageway, a third valve passageway, and a supply passageway; a first spool movably disposed in the valve body, wherein the first spool is movable relative to the valve body along the longitudinal axis between a first position and a second position; and a second spool movably disposed in the valve body, wherein the second spool is movable relative to the valve body along the longitudinal axis between an open position and a closed position; wherein the supply passageway is in fluid communication with the first valve passageway when the first spool is in the first position, with the second valve passageway when the first spool is in the second position, and with the third valve passageway when the second spool is in the open position; and wherein the second spool precludes fluid flow between the supply passageway and the third valve passageway when the second spool is in the closed position.