F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/6
F16K 31/06 (2006.01) F16K 31/40 (2006.01) G05D 16/20 (2006.01)
Patent
CA 1183512
PROPORTIONAL SOLENOID VALVE Abstract: A diaphragm operated valve assembly is controlled by an electromagnetic valve assembly (10) A flat disc armature (22), which forms part of a flux path, is operable in an inner chamber (118) to modu- late the flow between the inner chamber (118) and an exit port (28) in response to an applied magnetic force. The level of the effective magnetic force is a function of the armature (22) mass, and the pressure acting on the disc surface. A pole piece (16) ad- jacent to the flat disc armature (22) is slidably adjustable to establish a specified force to actuate the armature (22) to the closed or sealing posi- tion. This specified force is proportional to the current flow through the winding of the electromagnet- ic valve assembly (10). Thus the armature (22) operates to seal communication between the inner chamber (118) and the exit port (28) at a given pressure differential as a function of current flow. The travel distance between the armature and a non- magnetic seal seat (21) has been minimized by spring biasing the armature (22) in proximity to the seal seat (22).
403179
Borg-Warner Corporation
Macrae & Co.
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