Patent ID: 6095783
Filing Date: 2000-08-01
Classification: F01C,F04C

Abstract:
A fluid mover comprising: a housing having a cylindrical inside wall surrounding an internal chamber, a shaft extended through the chamber, means rotatably mounting the shaft on the housing, a piston located in the chamber secured to the shaft, said piston having a cylindrical outer wall having a diameter smaller than the diameter of the inside wall of the housing and an axis offset from the axis of the shaft, said housing having a fluid intake passage and a fluid exhaust passage open to the chamber and a cavity between the intake and exhaust passages open to the chamber, baffle means located in the cavity for controlling the flow of fluid through the chamber during rotation of the piston in the chamber, said baffle means having a face located in continuous close relationship with the outer wall of the piston during rotation of the piston in the chamber, eccentric cam means secured to the shaft, and means connected to the baffle means and engageable with the cam means for moving the baffle means in the cavity to maintain the face of the baffle means in close relation to the outer wall of the piston during turning of the piston in the chamber when torque is applied to the shaft whereby the turning piston moves fluid from the fluid intake passage, through the chamber, and forces fluid out of the chamber through the fluid exhaust passage, said means connected to the baffle means comprise cam follower means located in pocket means in the housing for linear reciprocate movement, said cam follower means having a generally ovaloid shaped wall surrounding an opening accommodating the cam means, means connecting the cam follower means to the baffle means whereby rotation of the cam means moves the cam follower means and baffle means in timed relation to the piston.