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. 23, 2014
Filed:
Apr. 18, 2012
Tadashi Iljima, Yuuki, JP;
Hirofumi Kizawa, Oyama, JP;
Boku Itou, Oyama, JP;
Shinji Tsujimura, Ninomiya-machi, JP;
Takashi Katou, Oyama, JP;
Tetsuo Orita, Oyama, JP;
Kanji Namimatsu, Oyama, JP;
Issei Hara, Utsunomiya, JP;
Hiroyuki Tomioka, Oyama, JP;
Tadashi Iljima, Yuuki, JP;
Hirofumi Kizawa, Oyama, JP;
Boku Itou, Oyama, JP;
Shinji Tsujimura, Ninomiya-machi, JP;
Takashi Katou, Oyama, JP;
Tetsuo Orita, Oyama, JP;
Kanji Namimatsu, Oyama, JP;
Issei Hara, Utsunomiya, JP;
Hiroyuki Tomioka, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, a mixing pipe and an inner pipe. The exhaust pipe includes an elbow part having a curved portion, and a linear part disposed downstream of the elbow part. The injector is disposed outside the curved portion and injects the reducing agent aqueous solution towards the linear part. The mixing pipe is disposed inside the elbow part to surround the reducing agent aqueous solution injected from the injector. The mixing pipe includes a plurality of openings on its outer peripheral surface. The inner pipe is disposed downstream of the mixing pipe and spaced apart from an outlet portion of the mixing pipe and from an inner wall of the linear part to allow the exhaust gas to flow through the inside of the inner pipe and along the outer periphery of the inner pipe.