Hybrid nutating pump

Details Hybrid nutating pump Hybrid nutating pump

2005-12-29

2008-11-18

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

C074S060000, C091S499000

Reexamination Certificate

active

07451687

ABSTRACT:
A nutating pump for creating pressure or a vacuum. The nutating pump includes a housing with a center support positioned within said housing. The center support includes a semi-spherical recess. The pump also includes a drive shaft adapted to be connected to an electric motor and an eccentric adapted to be connected to the drive shaft. The pump further includes a ball adapted to form a ball joint and is adapted to be positioned within the semi-spherical recess of said center support. In addition the pump includes a nutating yoke positioned within the housing. The yoke includes a semi-spherical recess adapted to accept said pivot ball. The nutating yoke is adapted to be connected to the eccentric, such that rotation of the eccentric causes the yoke to move about the ball. The pump also includes a connecting rod connected to the yoke, a piston connected to the connecting rod and a cylinder adapted to accept the piston, wherein the movement of the yoke about the ball causes the piston to reciprocate within the cylinder.

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Innovation Engineering, Inc. Engine Technology International, Sep. 2003, 4 pages.

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