Patent ID: 6435852
Filing Date: 2002-08-20
Classification: F04C

Abstract:
A rotary pump comprising:a casing having a rotator rotatably received therein and a shaft fixedly extending through said rotator, said shaft located eccentrically in said casing, a receiving area defined longitudinally in an outer periphery of said rotator, an inlet and an outlet defined through said casing, said receiving area including a first recess and a second recess defined longitudinally in said outer periphery of said rotator, and a pushing assembly having a connection member and a first member rotatably connected to a first end of said connection member, a second member rotatably connected to a second end of said connection member and fixedly received in said first recess, a torsion spring connected between said first member and said second member, said first member rotatably contacting an inner periphery of said casing.