The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2008
Filed:
Sep. 21, 2004
Kazuaki Murase, Konan, JP;
Youichi Hasegawa, Kasugai, JP;
Kei Shibayama, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
A starter for cranking an internal combustion engine includes an electric motor, an output shaft, and a one-way clutch for transmitting a rotational torque of the electric motor to the output shaft. The one-way clutch is composed of a clutch-outer driven by the electric motor, a clutch-inner spline-coupled to the output shaft, and rollers disposed between the clutch-outer and the clutch-inner. A portion of the clutch-inner is utilized as an inner ring of a ball bearing rotatably supporting the clutch-inner. A ball-groove rotatably supporting the bearing balls and retaining lubricant therein is formed on the outer circumference of the clutch-inner. In this manner, an original inner ring of the ball bearing can be eliminated without adversely affecting the lubricating function.