Engine starter drive
First Claim
1. A starter drive for an engine having an engine ring gear, said starter drive comprising a housing, a motor, a motor driven shaft, a sleeve axially advanceable on said motor driven shaft upon rotation thereof, housing engagement means connected to said sleeve, a drive pinion mounted on said motor driven shaft, unidirectional clutch means interconnecting said sleeve and said drive pinion, and means for engaging said housing engagement means to said housing as said drive pinion is advanced axially along said motor driven shaft such that said drive pinion is held in mesh with said engine ring gear and such that the total motor torque is transmitted to said engine ring gear until said motor is deactivated.
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Accused Products
Abstract
A starter drive for internal combustion engines. The starter drive is mounted within the starter housing and connected to the motor driven shaft. The shaft has a screw thread formed thereon near the armature of the starter and a cylindrical end portion. A screw sleeve member cooperatively engages the screw thread of the motor driven shaft. A ring armature member is centrally mounted to the threaded screw member. A unidirectional clutch member connects the screw sleeve member, the ring armature member and the pinion gear. An engaging member holds the ring armature member to the starter housing when the pinion gear is advanced axially along the motor driven shaft by the rotation of the motor when the motor is activated. Thus, the pinion gear engages the engine ring gear such that the pinion gear is held in mesh with the ring gear and the total motor torque is transmitted to the ring gear until the motor is deactivated.
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Citations
19 Claims
- 1. A starter drive for an engine having an engine ring gear, said starter drive comprising a housing, a motor, a motor driven shaft, a sleeve axially advanceable on said motor driven shaft upon rotation thereof, housing engagement means connected to said sleeve, a drive pinion mounted on said motor driven shaft, unidirectional clutch means interconnecting said sleeve and said drive pinion, and means for engaging said housing engagement means to said housing as said drive pinion is advanced axially along said motor driven shaft such that said drive pinion is held in mesh with said engine ring gear and such that the total motor torque is transmitted to said engine ring gear until said motor is deactivated.
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8. An engine starter drive for engaging an engine ring gear to start an engine, said engine starter drive comprising:
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a motor; a motor housing; a drive shaft extending from said motor, said drive shaft having a first end portion drivingly interconnected with said motor and a second end portion extending from said motor away from said first end portion; advancing means formed on said drive shaft at a location intermediate said first and second end portions; a sleeve member mounted on said drive shaft, said sleeve member having one end, an other end opposite said one end, and an intermediate cylindrical portion extending from said one end to said other end, said intermediate cylindrical portion having an inner diameter and an outer diameter, said inner diameter being slidably and rotatably mounted on said advancing means on said drive shaft such that said sleeve member is axially advanced towards said second end portion of said drive shaft upon rotation of said drive shaft; a pinion gear slidably mounted on said second end portion of said drive shaft for axial movement along said drive shaft, said pinion gear further being adapted for movement into and out of engagement with said engine ring gear to start said engine; unidirectional clutch means coaxially disposed with said drive shaft and interposed said pinion gear and said sleeve member, said unidirectional clutch means further being slidably mounted on an intermediate portion of said sleeve member between said advancing means and said second end portion; housing engagement means connected to said sleeve member; and means for interconnecting said motor housing and said housing engagement means when said pinion gear is advanced along said drive shaft by the rotation of said motor when activated so as to contact said engine ring gear such that said pinion gear is held in engagement with said engine ring gear and such that the total motor torque is transmitted to said engine ring gear until said motor is deactivated. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification