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:
Nov. 14, 2006
Filed:
Feb. 02, 2004
Seigo Arai, Hiroshima, JP;
Takashi Tsukiana, Hiroshima, JP;
Koichi Yamashita, Hiroshima, JP;
Kazuhiro Ueda, Hiroshima, JP;
Hiroaki Iwamitsu, Hiroshima, JP;
Seigo Arai, Hiroshima, JP;
Takashi Tsukiana, Hiroshima, JP;
Koichi Yamashita, Hiroshima, JP;
Kazuhiro Ueda, Hiroshima, JP;
Hiroaki Iwamitsu, Hiroshima, JP;
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Abstract
In a construction machine comprising an engine, hydraulic device, and heat exchanger for cooling the engine and the hydraulic device, which are all disposed in an upper rotating body of the construction machine, there is formed a maintenance passage along which maintenance portions of the engine and the hydraulic device are disposed so as to cross the upper rotating body. Exhaust air from cooling fans for sending air to the heat exchanger is discharged to the exterior of the machine body through the passage. Thus, the passage is utilized as an exhaust air passage for the heat exchanger, whereby it is possible to provide a construction machine improved in cooling efficiency for the heat exchanger.