Method for manufacturing a torque converter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6662446
SERIAL NO

10193203

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A torque converter comprises an impeller shell, a pump impeller integrally formed with the impeller shell, a turbine runner, a stator, a front cover, and at least one of a flanged portion through which a driving power of an engine is transmitted and a ring gear for a starter. The flanged portion is formed on an outer peripheral portion of an outer hull that includes the impeller shell and the front cover. A pilot boss portion is disposed at an axial portion of the front cover and is adapted to be fitted to a crank shaft of the engine, and a sleeve-like oil pump driving shaft is disposed at an axial portion of the impeller shell and is adapted to drive an oil pump. The pilot boss portion is formed integrally with the front cover through a plastic working operation, and the flanged portion formed at a front portion of the outer periphery of the front cover is increased in thickness through a plastic working operation that forms the flanged portion as a lamination.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
KUBOTA IRON WORKS CO LTDHIROSHIMA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Toshio Tokyo, JP 260 4062
Yamanaka, Shigeaki Hiroshima, JP 21 138

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