US 9,562,523 B2 · Wobble drive mechanism

Abstract

A wobble drive mechanism for coupling a rotary motion to a reciprocating motion comprising a diagonal plate coupled to a rotary motion axis driving a wobble carrier having a flat side in sliding contact with the diagonal plate and a spherical side in contact with a spherical bearing recess. The wobble carrier has a bore containing at least one reciprocating drive shoe. The reciprocating drive shoe may be coupled to a piston operating within a cylinder. The reciprocating drive shoe may be free to move in the bore linearly and/or rotationally. In various embodiments, the reciprocating drive shoe comprises two or more components. In various embodiments the piston is coupled to the shoe via a fixed rod section and the fixed rod section terminates in, for example, a double cylindrical bearing T section or a spherical bearing. The reciprocating drive may operate various devices, for example, pump or motor devices.

Claims24

Dependent claims

A wobble drive mechanism for coupling a rotary motion to a reciprocating motion comprising:

a diagonal plate and a wobble carrier;
said diagonal plate configured for coupling to a rotary motion drive in accordance with a rotary axis, said diagonal plate having a driving surface at a diagonal angle to said rotary axis, said diagonal plate for driving said wobble carrier;
said wobble carrier having a first side, said wobble carrier in sliding contact with said diagonal plate along said first side, and said wobble carrier having a spherical side opposite said first side, said spherical side in contact with a spherical bearing recess;
said wobble carrier operatively constrained between said diagonal plate and said spherical bearing recess;
said wobble carrier having a wobble carrier bore disposed laterally to said wobble carrier;
at least one reciprocating drive shoe contained within said wobble carrier bore;
said reciprocating drive shoe free to move axially within said wobble carrier bore;
said at least one reciprocating drive shoe coupled through a connecting rod for coupling said reciprocating motion.

5 more elements

Dependencies are inferred from the claim text.

Wobble drive mechanism

Life of this patent

Wobble drive mechanism

Life of this patent

Abstract

Claims24