Patent ID: 6886597
Filing Date: 2005-05-03
Classification: F16K,Y10T

Abstract:
1. A solenoid valve that has a response proportional to an inductor current powering an inductor coil surrounding an axially moving core plunger to which there is secured a pushrod sliding in a pole piece of the fixed magnetic circuit and collaborating with the inductor coil, actuating a valve comprising a plurality of valve shutters each collaborating with a seat disposed in a valve body so as to open and close the valve, return means providing each shutter with a stable position of rest with respect to the seat when the inductor current is zero, each valve shutter being coaxial with the pushrod and actuated by it, characterized in that the mechanical connection between the shaft of one valve shutter and the pushrod and respectively the shaft of the adjacent valve shutter is reduced to a point contact wherein the plurality of shutters move together in one direction to close the valve and move together in an opposite direction to open the valve.