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:
Mar. 22, 2016
Filed:
Jan. 10, 2012
Takahiro Kobayashi, Tsuchiura, JP;
Tsuyoshi Nakamura, Tsuchiura, JP;
Kensuke Sato, Tsuchiura, JP;
Hiroyuki Azuma, Tsuchiura, JP;
Takahiro Kobayashi, Tsuchiura, JP;
Tsuyoshi Nakamura, Tsuchiura, JP;
Kensuke Sato, Tsuchiura, JP;
Hiroyuki Azuma, Tsuchiura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
To provide a construct ion machine in which the temperature of a battery and aqueous urea within an aqueous urea tank can be prevented from rising and high stability can be secured in the vehicle body. A small turning type hydraulic excavator () including: a counterweight () disposed at the rear of a turning upperstructure () provided with a front work machine () in the front thereof; an engine () disposed within an engine room () in front of the counterweight (); a heat exchanger () exchanging heat with the engine (); a fan () introducing outside air from an intake port () formed in the exterior of the engine room () into the engine room () to cool the heat exchanger (); a tail pipe () disposed on the exterior of the engine room (); an aqueous urea tank () storing aqueous urea that purifies the exhaust gas discharged from the engine (); and batteries () supplying electric power to the engine (), wherein: both the aqueous urea tank () and the batteries () are disposed on an upstream side of the heat exchanger () in a flow direction of the outside air.