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. 18, 2008
Filed:
Jun. 15, 2004
Hajime Nakashima, Hiroshima, JP;
Kazuhiro Ueda, Hiroshima, JP;
Yasumasa Kimura, Kobe, JP;
Hideo Utsuno, Kobe, JP;
Toshiyuki Kobayashi, Kobe, JP;
Hajime Nakashima, Hiroshima, JP;
Kazuhiro Ueda, Hiroshima, JP;
Yasumasa Kimura, Kobe, JP;
Hideo Utsuno, Kobe, JP;
Toshiyuki Kobayashi, Kobe, JP;
Kobelco Construction Machinery Co., Ltd., Hiroshima-shi, JP;
Abstract
Engine noise of a construction machine is effectively reduced without reducing cooling performance and with an increase in the height of a body cover kept minimum. To achieve the above, an air-intake opening portion () and an air discharge opening portion () are arranged in a body cover () of an upper rotating body (), and a cooling fan () in an engine room covered by the body cover () is driven, taking cooling air in from the air-intake opening portion () to cool a heat exchanger () in the body cover () and discharging the air from the air discharge opening portion (). The air-intake opening portion () is laterally offset from a position facing to a ventilation surface of the heat exchanger (). Alternatively, plural air-intake opening portions are located in a scattered manner such that the plural air-intake opening portions include the offset air-intake opening portion offset from the ventilation surface of the heat exchanger ().