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:
Jul. 09, 2013
Filed:
Apr. 19, 2007
Toshimitsu Shiba, Toyota, JP;
Toshiaki Asada, Mishima, JP;
Makoto Ishikawa, Nishikamo-gun, JP;
Tomoaki Suzuki, Nagoya, JP;
Kazuhito Sakai, Makinohara, JP;
Toshimitsu Shiba, Toyota, JP;
Toshiaki Asada, Mishima, JP;
Makoto Ishikawa, Nishikamo-gun, JP;
Tomoaki Suzuki, Nagoya, JP;
Kazuhito Sakai, Makinohara, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A starter for an internal combustion engine includes a power transmission mechanism. The power transmission mechanism has an outer race plate fastened to a crankshaft, and a ring gear coupled to a rotational shaft of an electric motor for starting the engine. The power transmission mechanism further has a one-way clutch for permitting torque transmission only from the ring gear to the outer race plate, and two sealing members. Lubricant is supplied from the cylinder block to the interior of the power transmission mechanism for lubricating the power transmission mechanism. The outer race plate has a groove on its contact surface of a contact portion between the crankshaft and the outer race plate. The groove extends in the entire circumferential direction of the crankshaft. This maintains the coupling strength between the outer race plate and the crankshaft, while enhancing the sealing performance of the power transmission mechanism.