Starter
First Claim
1. A starter for an internal combustion engine, comprising:
- a starter motor whose output shaft is rotated by current supplied;
a torque transmission member with a pinion for transmitting torque from an output shaft of the starter motor to a ring gear of the engine, and which is capable of transmitting and interrupting the torque by moving the pinion so as to mesh with and disengage from the ring gear;
an electromagnetic actuator for moving the torque transmission member to a place where the pinion meshes with the ring gear when current is supplied;
a disengaging mechanism for applying a driving force to the torque transmission member so that the torque transmission member moves to a place where the pinion is disengaged from the ring gear when the number of revolutions of the ring gear exceeds that of the torque transmission member; and
a controller for energizing the electromagnetic actuator to move the torque transmission member so that the pinion meshes with the ring gear after the engine is stopped,wherein the torque transmission member is configured to maintain a state where the pinion and the ring gear mesh with each other during an engine stop mode by movement resistance of the torque transmission member, even when the electromagnetic actuator is non-energized.
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0 Petitions
Accused Products
Abstract
The present invention provides as tarter capable of keeping a state where a pinion and a ring gear maintain meshing with each other when an engine stops without providing a plunger stopper using a solenoid or the like. The state where the pinion and the ring gear maintain meshing with each other in the engine stop mode continues by movement resistance which occurs when a torque transmission member moves. Concretely, an inclination angle of a helical spline in a helical spline engagement part is set so that the above state continues. The helical spline engagement part is a part where a helical spline on the outer periphery of an output shaft of a starter motor and a helical spline on the inner periphery of the torque transmission member mesh with each. Consequently, the above state continues without a plunger stopper using a solenoid or the like.
100 Citations
20 Claims
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1. A starter for an internal combustion engine, comprising:
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a starter motor whose output shaft is rotated by current supplied; a torque transmission member with a pinion for transmitting torque from an output shaft of the starter motor to a ring gear of the engine, and which is capable of transmitting and interrupting the torque by moving the pinion so as to mesh with and disengage from the ring gear; an electromagnetic actuator for moving the torque transmission member to a place where the pinion meshes with the ring gear when current is supplied; a disengaging mechanism for applying a driving force to the torque transmission member so that the torque transmission member moves to a place where the pinion is disengaged from the ring gear when the number of revolutions of the ring gear exceeds that of the torque transmission member; and a controller for energizing the electromagnetic actuator to move the torque transmission member so that the pinion meshes with the ring gear after the engine is stopped, wherein the torque transmission member is configured to maintain a state where the pinion and the ring gear mesh with each other during an engine stop mode by movement resistance of the torque transmission member, even when the electromagnetic actuator is non-energized. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A starter for an internal combustion engine, comprising:
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a starter motor rotated by current supplied; a torque transmission member provided slidably on an output shaft of the starter motor, and which has a pinion mounted on an outer periphery of the output shaft and is capable of engaging and disengaging the pinion and a ring gear of the engine by sliding of itself on the output shaft; a solenoid which generates driving force for sliding the torque transmission member to a place where the pinion meshes with the ring gear when current is supplied; a helical spline engagement part comprised of a helical spline on the outer periphery of the output shaft and a helical spline on the inner periphery of the torque transmission member;
these helical splines are meshed with each other and have inclination angles for making the sliding of the torque transmission member; and
the helical splines slide the torque transmission member so as to get apart from the ring gear when the pinion is rotated by driving force from the ring gear; anda controller for energizing the solenoid to slide the torque transmission member so that the pinion meshes with the ring gear after the engine is stopped, wherein the inclination angles of the helical splines are set so as to maintain a state where the pinion and the ring gear mesh with each other during an engine stop mode, even when the solenoid is non-energized. - View Dependent Claims (9)
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10. A starter for an internal combustion engine, comprising:
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a starter motor whose output shaft is rotated by current supplied; a torque transmission member with a pinion for transmitting torque from an output shaft of the starter motor to a ring gear of the engine, and which is capable of transmitting and interrupting the torque by moving the pinion so as to mesh with and disengage from the ring gear; an electromagnetic actuator for moving the torque transmission member to a place where the pinion meshes with the ring gear when current is supplied; a disengaging mechanism for applying a driving force to the torque transmission member so that the torque transmission member moves to a place where the pinion is disengaged from the ring gear when the number of revolutions of the ring gear exceeds that of the torque transmission member; and a controller for energizing the electromagnetic actuator to move the torque transmission member so that the pinion meshes with the ring gear after rotation of a crankshaft of the engine completely stops, wherein the torque transmission member is configured to maintain a state where the pinion and the ring gear mesh with each other by a reaction of movement of the torque transmission member after the engine is stopped, even when the electromagnetic actuator is non-energized. - View Dependent Claims (11, 12, 13)
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14. A starter for an internal combustion engine, comprising:
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a starter motor whose output shaft is rotated by current supplied; a torque transmission member with a pinion for transmitting torque from an output shaft of the starter motor to a ring gear of the engine, and which is capable of transmitting and interrupting the torque by moving the pinion so as to mesh with and disengage from the ring gear; an electromagnetic actuator for moving the torque transmission member to a place where the pinion meshes with the ring gear when current is supplied; a disengaging mechanism for applying a driving force to the torque transmission member so that the torque transmission member moves to a place where the pinion is disengaged from the ring gear when the number of revolutions of the ring gear exceeds that of the torque transmission member; and a controller for energizing the electromagnetic actuator to move the torque transmission member so that the pinion meshes with the ring gear after the engine is stopped, wherein the engine is set to stop in a state where the pinion meshes with the ring gear and a piston is in a way from a bottom dead center to a top dead center in a compression stroke. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification