Patent ID: 6820650
Filing Date: 2004-11-23
Classification: F16B,F16K,Y10T

Abstract:
A solenoid valve comprising an electromagnet subassembly and a pneumatic switching subassembly with a valve plug mechanically associated with the electromagnet subassembly, the pneumatic switching subassembly including a body enclosing the valve plug trapped between two sealing seatings facing each other, the movement of the valve plug being controlled firstly by a spring located in a mobile core of the electromagnet subassembly through a pusher, and secondly by a means that forces the valve plug into contact on the upper seating of the pneumatic switching subassembly when the electromagnet is energized, wherein the electromagnetic subassembly has four cylindrical pins at its assembly plane on the pneumatic switching subassembly, each cylindrical pin being provided with a transverse cavity formed on the generating line of the pin and terminating with a frustum of a sphere, the pneumatic switching subassembly including four cylindrical cavities at its assembly plane with the electromagnet subassembly, designed to hold the pins of the electromagnet subassembly, transverse cavities being formed on the body of the pneumatic switching subassembly, the transverse cavities terminating on the corresponding generating line of the cylindrical cavities into which the pins will be fitted, and the cavities terminating in the frustum of a sphere whereby, after the electromagnetic and pneumatic subassemblies are assembled together, the transverse cavities of the pins of the electromagnet subassembly are facing the transverse cavities of the pneumatic switching subassembly, delimiting housings into which a ball will fit.