Vehicle drive device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11662010
APP PUB NO 20210190192A1
SERIAL NO

17262848

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vehicle drive device uses a parallel shaft gear reducer (30) in which a gear is composed of helical gear, as a speed reducer part (B) that decelerates and outputs a rotation of an electric motor part (A). In the vehicle drive device, of meshing parts of the gears formed in the speed reducer part (B), two gears form a meshing part in which the amount of misalignment that occurs between the tooth surfaces of the two gears meshing with each other is different during driving and during coasting of a vehicle. A first tooth surface (S1) meshing with a mating tooth surface during driving is subjected to tooth surface modification, and a second tooth surface (S2) meshing with a mating tooth surface during coasting is subjected to tooth surface modification of an amount different from an amount of the tooth surface modification to the first tooth surface (S1).

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Patent Owner(s)

Patent OwnerAddress
NTN CORPORATIONOSAKA-SHI OSAKA 550-0003

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sato, Katsunori Shizuoka, JP 175 1444
Yamamoto, Tetsuya Shizuoka, JP 636 13176
Yukishima, Ryou Shizuoka, JP 13 72

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