Eccentric bearing for a poppet drive system
OwnerJorge A. Valdespinoinventor
Life of this patent
Estimating the term…
Abstract
An eccentric bearing for driving pump poppets, wherein the motor shaft is non-eccentric and no U-shaped follower is used. The eccentric bearing has an inner bearing cylinder, an outer bearing ring and a roller or ball bearing interfacing between the inner bearing cylinder and the outer bearing ring. A shaft bore is provided in the inner bearing cylinder at a location off-set from the axial center of the inner bearing cylinder. A non-eccentric shaft (that is, the shaft rotates symmetrically about its axis of rotation) is affixed to the shaft bore, and the mass is centrifugally balanced in the inner bearing cylinder. A pair of poppet head clips are attached to an outer bearing surface of the outer bearing ring for clipping onto diametrically disposed poppet heads.
Claims8
An eccentric bearing, comprising:
- an inner bearing cylinder having an outer periphery and an axial center centrally disposed in relation to said outer periphery, said inner bearing cylinder having a shaft bore adapted to receive a motor shaft, said shaft bore being off-set spatially from said axial center, said inner bearing cylinder having a mass distribution therewithin which balances centrifugal forces during rotation of said inner bearing cylinder centrally about said shaft bore;
- an outer bearing ring having an inner perphery and an outer bearing surface, a pair of poppet head clips being connected to said outer bearing surface in mutually axial alignment;
- and
- a bearing interface between said outer and inner peripheries.
A poppet drive system, comprising:
- a first poppet having a first poppet head;
- a second poppet having a second poppet head;
- and
- an eccentric bearing, comprising:
- an inner bearing cylinder having an outer periphery and an axial center centrally disposed in relation to said outer periphery, said inner bearing cylinder having a shaft bore adapted to receive a motor shaft, said shaft bore being off-set spatially from said axial center, said inner bearing cylinder having a mass distribution therewithin which balances centrifugal forces during rotation of said inner bearing cylinder centrally about said shaft bore;
- an outer bearing ring having an inner perphery and an outer bearing surface, a pair of poppet head clips being connected to said outer bearing surface in mutually axial alignment;
- and
- a bearing interface between said outer and inner peripheries;
- wherein each poppet head clip of said pair of poppet head clips is engaged with said first and second poppet heads, respectively so as to cause said first and second poppet heads to reciprocate as said inner bearing cylinder rotates centrally about said shaft bore.
Dependencies are inferred from the claim text.