Rotary magnetic valve for low noise low wear operation

A valve having first and second states, said valve comprising:

• a housing having a hollow interior and first and second passages in fluid communication with said hollow interior;
• an armature rotatively mounted in said hollow interior;
• means for biasing said armature into a first position;
• and
• an electromagnetic actuator for rotating said armature into a second position, said electromagnetic actuator comprising an electromagnetic having a C-shaped core straddled over said housing, said valve assuming its first state when said armature is in said first position and said valve assuming its second state when said armature is in said second position.

A valve comprising;

• a cylindrical shell having a longitudinal axis, a first end piece at one end thereof, said first end piece having a first passage formed therein, and a second end piece at another end thereof, said second end piece having a second passage formed therein;
• a magnetically-responsive valve closure device mounted in said shell for rotation about said longitudinal axis;
• at least one permanent magnet disposed along said shell, said at least one permanent magnet biasing said valve closure device into a first position in which fluid flow between said first and second passages is prevented;
• and
• an electromagnet disposed adjacent to said shell, said electromagnet rotating said valve closure device into a second position in which fluid flow between said first and second passages is permitted.