Variable timing valve apparatus
OwnerJay Traninventor
Life of this patent
Estimating the term…
Abstract
A variable valve timing assembly includes an electric motor; a first set of gears driven by the electric motor; a first set of grooves and ball bearings driven by the first set of gears; a second set of grooves and ball bearings driven by the first of grooves and ball bearings; wherein the first set of grooves and ball bearings converts rotational movement of the first set of gears to axial rotational movement of the first set of ball bearings; wherein the axial movement of the first set of ball bearings causes rotational movement of the second set of grooves; whereby the rotational movement of the second set of grooves enables rotation of a camshaft engaged to a valve.
Claims20
A variable valve timing assembly, comprises:
- an electric motor;
- a first set of gears driven by the electric motor;
- a first set of grooves and ball bearings driven by the first set of gears;
- a timing helix having a timing helix cylindrical body, a timing helix bottom wall from which the helix cylindrical body extends, and a second set of grooves;
- a timing gear having a timing gear cylindrical body and a second set of ball bearings disposed in the second set of grooves of the timing helix;
- wherein the timing helix bottom wall is configured to abut a camshaft therethrough;
- wherein the second set of grooves and ball bearings are driven by the first set of grooves and ball bearings;
- wherein the first set of grooves and ball bearings converts rotational movement of the first set of gears to axial movement of the first set of ball bearings;
- wherein the axial movement of the first set of ball bearings causes rotational movement of the second set of grooves;
- whereby the rotational movement of the second set of grooves enables rotation of the camshaft engaged to a valve.
(canceled)
The variable valve timing assembly of 1, further comprising:
- a thrust bearing intermediate the first and second sets of grooves and ball bearings.
A variable valve timing assembly, comprises:
- an electric motor;
- a worm drive driven by the electric motor;
- a compression gear driven by the worm drive;
- a ball screw driven by the compression gear, wherein the ball screw converts rotational movement of the compression gear to axial movement of the ball screw;
- a timing helix having a set of grooves, wherein a bottom wall of the timing helix is configured to abut a camshaft therethrough;
- a timing gear having a set of ball bearings that are in a set of pockets in the timing gear;
- wherein the set of grooves and ball bearings is operatively connected to the ball screw;
- wherein the set of grooves and ball bearings is configured to convert the axial movement of the ball screw to rotational movement of the camshaft connected to a valve.
(canceled)
A variable valve timing assembly, comprises:
- an electric motor;
- a first set of gears driven by the electric motor;
- a ball screw driven by the first set of gears;
- a timing helix having a set of grooves in a timing helix cylindrical body that extends from a timing helix bottom wall, wherein the entire timing helix bottom wall is offset axially of the ball screw, wherein the timing helix bottom wall is configured to abut a camshaft therethrough;
- a timing gear having a set of ball bearings in a timing gear cylindrical body, wherein the entire timing gear cylindrical body is offset axially of the ball screw;
- wherein the sets of grooves and ball bearings are configured to convert axial movement of the ball screw to rotational movement of the camshaft connected to a valve.
(canceled)
(canceled)
Dependencies are inferred from the claim text.