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.:

US 7671508 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 02, 2010

Filed:

May. 16, 2007
Applicants:

Kazushige Okumoto, Kariya, JP;

Shin Kusase, Oobu, JP;

Inventors:

Kazushige Okumoto, Kariya, JP;

Shin Kusase, Oobu, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/22 (2006.01); H02K 19/16 (2006.01); H02K 19/34 (2006.01); H02K 16/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to the present invention, an alternator includes a rotor, a stator, and at least one cooling fan. The rotor includes a rotary shaft, a field core, and a field coil. The field coil has first and second ends that are opposite to each other in an axial direction of the rotary shaft. The stator includes an armature core and an armature coil. The armature core has first and second ends that are opposite to each other in the axial direction. The first end of the armature core is closer to the first end than the second end of the field coil. An axial distance between the first and second ends of the field coil is less than that between the first and second ends of the armature core. The first end of the field coil protrudes outward from the first end of the armature core in the axial direction.


Find Patent Forward Citations

Okumoto, Kazushige. (2010). Automotive alternator having improved structure for effectively cooling field coil (U.S. Patent No. 7671508). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7671508

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