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:
Dec. 10, 2013
Filed:
Sep. 29, 2011
Toshihiro Abe, Tsuchiura, JP;
Shouhei Kamiya, Tsuchiura, JP;
Hideki Onuma, Tsuchiura, JP;
Hiroyuki Kamata, Tsuchiura, JP;
Hiroki Sugawara, Tsuchiura, JP;
Hirotaka Kawamukai, Tsuchiura, JP;
Toshihiro Abe, Tsuchiura, JP;
Shouhei Kamiya, Tsuchiura, JP;
Hideki Onuma, Tsuchiura, JP;
Hiroyuki Kamata, Tsuchiura, JP;
Hiroki Sugawara, Tsuchiura, JP;
Hirotaka Kawamukai, Tsuchiura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an exhaust assembly for a construction machine having a revolving upperstructure and an engine mounted on the revolving upperstructure. The exhaust assembly is to be arranged inside the revolving upperstructure of the construction machine, and is provided with an after-treatment device for exhaust gas from the engine and an exhaust pipe for releasing exhaust gas, which has been guided from an outlet port of the after-treatment device, to an outside. The exhaust assembly includes a concave-convex part, which has plural concavities and convexities, is arranged on an inner wall of the exhaust pipe, and extends in a direction of discharge of the exhaust gas.