Cam actuated butterfly valve

A fluid valve assembly for modulating fluid flow therethrough actuated by a linear input means, said valve assembly comprising:

• (a) housing means defining a fluid flow passage therethrough and a valve seat within said fluid flow passage, said housing means including means defining a plurality of guide surfaces;
• (b) a movable valve member rotatably mounted to said housing means, said valve member being movable between a closed position engaging said valve seat and an open position spaced from said valve seat;
• (c) crank means having a first portion connected to said valve member for providing said rotary movement, a second portion extending exteriorly of said housing means, said second portion including a cam follower portion;
• (d) actuator means slidably received on said guide surfaces and movable linearly relative to said housing means between a first and second position in response to actuation by said linear input means, said actuator means including a resiliently deformable member having a channel shaped cross-section with each of said guide surfaces slidably contacting a leg of said channel, said actuator means defining a cam surface engageable with said cam follower portion, said crank means moving in response to movement of said actuator means such that in said first position said valve member is closed and in said second position said valve member is open.

A fluid valve assembly for modulating fluid flow therethrough actuated by a linear input means, said valve assembly comprising:

• (a) housing means defining a fluid flow passage therethrough and a valve seat within said fluid flow passage, said housing means including means defining a plurality of guide surfaces;
• (b) a movable valve member rotatably mounted to said housing means, said valve member being movable between a closed position engaging said valve seat and an open position spaced from said valve seat;
• (c) crank means having a first portion connected to said valve member for providing said rotary movement, a second portion extending exteriorly of said housing means, said second portion including a cam follower portion;
• (d) actuator means slidably received on said guide surfaces and movable linearly relative to said housing means between a first and second position in response to actuation by said linear input means, said actuator means includes a resilient member having a channel shaped cross-section with a longitudinally extending groove formed in each leg thereof with one of said guide surfaces received and slidably guided in each groove, said actuator means defining a cam surface engageable with said cam follower portion, said crank means moving in response to movement of said actuator means such that in said first position said valve member is closed and in said second position said valve member is open.