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:
Dec. 09, 1997
Filed:
May. 23, 1995
Nippondenso Co., Ltd., , JP;
Abstract
A front frame and a rear frame of an alternator house a rotor and a stator therein and are secured by through bolts and nuts to each other in an axial direction at supports which are formed on the circumferential portion of the frames. Cooling air intake windows are formed on the end surfaces of the frames and cooling air discharging windows are formed on the circumferential surfaces of the frames. Window ribs formed between the discharging windows are arranged so that the ribs adjacent to the supporting portions have a width which is greater than the width of other ribs, thereby providing sufficient rigidity to suppress resonant vibrations and the generation of magnetic noise which occurs when the armature reaction of the alternator is transmitted from the stator to the entirety of the frames.