A starter for moving a movable portion of an engine to start the engine includes a gear housing, a gear assembly within the gear housing, an output member at a first end of the gear assembly adapted to operably couple to the movable portion of the engine, a motor housing, and a rotor rotatably mount
A starter for moving a movable portion of an engine to start the engine includes a gear housing, a gear assembly within the gear housing, an output member at a first end of the gear assembly adapted to operably couple to the movable portion of the engine, a motor housing, and a rotor rotatably mounted within the motor housing. The rotor has a shaft portion and a vane portion that are an integral, unitary piece. The shaft portion has splines for mating with the gear assembly. The splines prevent relative rotational movement between the rotor and the gear assembly and permit relative axial movement. The rotor is formed from aluminum and at least a portion of the rotor includes an anodized coating.
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What is claimed is: 1. A starter for moving a movable portion of an engine to start the engine, the starter comprising: a gear housing having first and second opposite ends; a gear assembly within the gear housing and including a plurality of speed-reducing gears; an output member at the first end
What is claimed is: 1. A starter for moving a movable portion of an engine to start the engine, the starter comprising: a gear housing having first and second opposite ends; a gear assembly within the gear housing and including a plurality of speed-reducing gears; an output member at the first end of the gear assembly adapted to operably couple to the movable portion of the engine; a motor housing having a first end mounted to the second end of the gear housing and a second end opposite the first end; a motive fluid inlet adapted to permit a flow of motive fluid into the motor housing; a rotor mounted within the motor housing and rotatable within the housing under the influence the flow of the motive fluid; and a motive fluid outlet mounted to the second end of the motor housing, and adapted to exhaust the motive fluid to a desired destination after the motive fluid has flown though the motor housing; wherein the rotor has a shaft portion and a vane portion, the shaft portion and the vane portion being an integral, unitary piece, the shaft portion having splines for mating with and transferring torque to the gear assembly, wherein the rotor is formed from aluminum and at least a portion of the rotor includes an anodized coating. 2. The starter of claim 1, wherein the rotor further comprises a stub portion on an opposite side of the vane portion as the shaft portion, the stub portion being integrally formed with the vane portion and the shaft portion. 3. The starter of claim 1, wherein substantially the entire surface of the rotor includes an anodized coating. 4. The starter of claim 1, wherein the anodized coating is a hard anodized coating. 5. The starter of claim 1, wherein the anodized coating has a thickness of from about 0.0005-0.0045 inches. 6. The starter of claim 1, wherein the rotor is a solid member. 7. A rotor for an engine starter for moving a movable portion of an engine to start the engine, the rotor comprising: a rotor having a shaft portion and a vane portion, the shaft portion and the vane portion being integral with one another so as to be an integral, unitary piece, the shaft portion having splines for coupling to a movable portion of the engine, the splines preventing relative rotational movement between the rotor and the movable portion and permitting relative axial movement, wherein the rotor is formed from aluminum and at least a portion of the rotor includes an anodized coating. 8. The rotor of claim 7, wherein the rotor further comprises a stub portion on an opposite side of the vane portion as the shaft portion, the stub portion being integrally formed with the vane portion and the shaft portion. 9. The rotor of claim 7, wherein substantially the entire surface of the rotor includes an anodized coating. 10. The rotor of claim 7, wherein the anodized coating is a hard anodized coating. 11. The rotor of claim 7, wherein the anodized coating has a thickness of from about 0,0005-0.0045 inches. 12. The rotor of claim 7, wherein the rotor is a solid member. 13. A method of servicing a starter for moving a movable portion of an engine to start the engine, the method comprising: accessing a service aperture in the starter; removing a rotor from the starter through the service aperture; removing an air motor shaft from the starter through the service aperture; replacing the rotor and the air motor shaft with an integral rotor having a shaft portion and a vane portion, the shaft portion and the vane portion being an integral, unitary piece, the shaft portion having splines for coupling to a movable portion of the engine, the splines preventing relative rotational movement between the integral rotor and the movable portion and permitting relative axial movement, wherein the integral rotor is formed from aluminum and at least a portion of the integral rotor includes an anodized coating. 14. The method of claim 13, wherein the integral rotor further comprises a stub portion on an opposite side of the vane portion as the shaft portion, the stub portion being an integral, unitary piece with the vane portion and the shaft portion. 15. The method of claim 13, wherein substantially the entire surface of the integral rotor includes an anodized coating. 16. The method of claim 13, wherein the anodized coating is a hard anodized coating. 17. The method of claim 13, wherein the anodized coating has a thickness of from about 0.0005-0.0045 inches. 18. The method of claim 13, wherein the integral rotor is a solid member. 19. The method of claim 13, wherein the rotor and the air motor shaft are mounted to one another with fasteners.
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