Machine element or mechanism – Engine starters – Automatic
Patent
1997-03-06
1999-03-02
Bonick, Rodney H.
Machine element or mechanism
Engine starters
Automatic
74 7A, F02N 1100
Patent
active
058756779
ABSTRACT:
A starter for an engine, having a ring gear includes an output shaft for slidably holding a pinion gear engageable with the ring gear, a housing having an opening portion that enables the pinion gear to engage with the ring gear when the pinion gear advances, a cover having a shutter, a front wall and a side wall for sliding together with the pinion gear. The shutter opens the opening portion when the pinion gear advances and shuts the most part of the opening portion when the pinion gear retracts. The front wall is provided to cover at least half of a front portion, which faces to the ring gear, of the pinion gear. The side wall is extended from the front wall in a direction parallel to an axis of the output shaft to cover at least half of the gear tooth periphery in a circumferential direction of the pinion gear. When water carried by the rotating ring gear comes to the opening portion when the pinion gear rotates with the ring gear, most of such water is blocked by the gear tooth. Furthermore, the rest of water is blocked by small gaps between the pinion gear and the cover. When the pinion gear is disengaged from the ring gear, the shutter closes most of the opening portion. Therefore, most of water carried by the rotating gear is blocked by the shutter. Even if water enters inside of the housing through a small gap between the opening portion and the shutter, water is blocked by small gaps between the pinion gear and the cover.
REFERENCES:
patent: 5443553 (1995-08-01), Shiga et al.
Inagaki Takahisa
Matsushima Keiichi
Ogishima Kenji
Ohmi Masanori
Takagi Yoshito
Bonick Rodney H.
Denso Corporation
Joyce William C.
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