Starter
AssigneeRobert Bosch GmbH
InventorsHans-Dieter Siems, Ingo Richter, Sven Hartmann, Hans Braun, Juergen Kugler
Life of this patent
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Abstract
An inertia-drive starter is proposed, in the case of which a relay is not required to engage the pinion in the flywheel ring gear (47) of an internal combustion engine. With this starter, a pushing-forward of the driven shaft (33) to engage a pinion (45) in the flywheel ring gear (47) is brought about by means of a pole tube (9) located on the stator (5) of the starter motor (5, 7), which said pole tube executes a turning motion around the motor axis when the starter motor (5, 7) is energized. Means (55, 63, 77, 79) are provided that convert the turning motion of the pole tube (9) directly into an axial motion acting on the driven shaft (33).
Claims8
A starter for an internal combustion engine that comprises a starter motor (5, 7), a drive shaft (29) capable of being driven by the starter motor (5, 7), and a driven shaft (33) that is mechanically linked with the drive shaft (29) and is displaceable in the direction of its longitudinal axis, which said driven shaft is equipped with a pinion (45) capable of being pushed into mesh with a flywheel ring gear (47) of the internal combustion engine, whereby a pushing-forward of the driven shaft (33) to engage the pinion (45) in the flywheel ring gear (47) takes place by means of an element (9) located on the stator (5) of the starter motor (5, 7), which said element undergoes a turning motion around the motor axis when the starter motor (5, 7) is energized,
- wherein means (55, 63, 77, 79, 85, 89, 91) are provided that convert the turning motion of the stator element (9) directly into an axial motion acting on the driven shaft (33).
Dependencies are inferred from the claim text.