Patent ID: 6591865
Filing Date: 2003-07-15
Classification: F15B,F16K,Y10T

Abstract:
A solenoid valve with a magnetometric sensor, said solenoid valve comprising: a valve body including a plurality of ports; a valve hole provided in said valve body; a valve element fitted for sliding in said valve hole; pistons disposed for sliding on axial opposite sides of said valve element; at least one pilot valve for supplying pilot fluid to said pistons to switch said valve element; caps fitted with opposite ends of said valve element and forming contact faces with which said pistons come in contact at end portions of said valve element; a ring-shaped magnet fitted with at least one of said end portions of said valve element and fixed to said position by said cap; a housing chamber formed in said valve body to be close to said valve hole and said magnet; at least one magnetometric sensor disposed in said housing chamber; and a cover with which said housing chamber is covered.