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.

Date of Patent:
Dec. 30, 2014

Filed:

Feb. 15, 2013
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventor:

Tatsuya Nakagami, Komatsu, JP;

Assignee:

Komatsu Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K 13/04 (2006.01); E02F 9/08 (2006.01);
U.S. Cl.
CPC ...
E02F 9/0866 (2013.01); E02F 9/0891 (2013.01);
Abstract

A hydraulic excavator includes an engine, an engine room accommodating the engine, a fan configured to generate cooling wind in the engine room, an exhaust treatment apparatus and an engine hood. The exhaust treatment apparatus treats exhaust from the engine. The exhaust treatment apparatus is at least partially positioned above the engine. The engine hood is arranged above the engine room. An upper surface of the engine hood has a first planar section arranged above the engine, a second planar section including ventilation holes, and an inclined section arranged between the first planar section and the second planar section. The second planar section is arranged above the exhaust treatment apparatus at a position higher than the first planar section. The inclined section extends to be inclined from the first planar section to the second planar section.


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