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:
Feb. 24, 2015
Filed:
Jan. 31, 2013
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Hironori Uozu, Kasumigaura, JP;
Shinji Akino, Ushiku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A cooling air supply device () for supplying cooling air to an alternator () and an electric motor () for traveling is provided with a cooling air inlet port (B) for taking in outside air as cooling air; a cooling air supply line () for establishing connection between the cooling air inlet port (B), and the alternator () and the electric motor (), and an alternator side cooling fan () and an electric motor side cooling fan () for sucking cooling air from the cooling air inlet port (B) into the cooling air supply line (). A dust separator () is provided in the halfway section of the cooling air supply line () to spirally circulate the cooling air and centrifugally separate the dust from the cooling air, and the dust in the cooling air is separated by the dust separator ().