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. 22, 2004
Filed:
Aug. 24, 2001
Applicant:
Inventor:
Hayato Yamauchi, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 1/502 ;
U.S. Cl.
CPC ...
F02N 1/502 ;
Abstract
A starting apparatus for an internal combustion engine includes an output shaft rotated by an electric motor and a pinion shaft connected to the output shaft by a one-way clutch. The output shaft is connected to the clutch by a helical spline, and the pinion shaft is connected to a pinion by another helical spline. The splines have the same pitch angle as each other and spiral in a direction opposite to a direction in which the output shaft is rotated by the motor. This structure prevents a locked state in which the pinion can neither engage with or be retracted from a ring gear of an engine to be started.