Timing apparatus having a gear incorporating a timing ring and method of manufacturing the same
AssigneePerkins Engines Company Limited
InventorGeoffrey Paul Bailey
Life of this patent
Estimating the term…
Abstract
A timing apparatus comprises a gear, for example a camshaft gear, and a timing ring secured to one side of the gear. The timing ring has a number of equally spaced timing teeth which when used with a sensor provide information about the rotation of the gear. The gear has a generally cylindrical recess on one face of the gear, and the timing ring is secured within the recess. The timing teeth are arranged radially inwardly of the gear teeth, so that the timing teeth are protected from damage. The resulting timing apparatus is economic to manufacture and facilitates compact adaption to a rotating body of an engine.
Claims25
A timing apparatus comprising:
- a gear having a first face, a second face, an outer toothed portion having a first width, and an inner web portion having a second width, said gear having a generally cylindrical recess disposed in the first face of the gear;
- and
- a timing ring being disposed in the recess and secured to the gear.
A timing apparatus comprising:
- a gear having gear teeth and a first face;
- a timing ring located on the first face of the gear, said timing ring having a plurality of circumferentially spaced timing teeth adapted to provide rotational and/or positional data to a timing sensor, said timing teeth being arranged radially inwardly of the gear teeth.
A timing apparatus, comprising:
- having a first a gear having a first face, a second face, an outer toothed portion having a first width, an inner web portion having a second width less than the first width, such that the gear has a generally cylindrical recess on the first face of the gear;
- and
- a timing ring being secured within the recess.
A method of manufacturing a timing apparatus, comprising:
- providing a gear having a face, and outer toothed portion, and a recess formed in the face;
- positioning a timing ring within the recess;
- and
- securing the positioned timing ring to the gear within the recess.
Dependencies are inferred from the claim text.