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. 01, 2011
Filed:
Jun. 16, 2006
Yoshikazu Sato, Wako, JP;
Kazuhiro Sakamoto, Wako, JP;
Gaku Naoe, Wako, JP;
Souhei Honda, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A muffler unit for a general-purpose engine includes a muffler () having a maze of sound-deadening chambers () defined therein and an inlet pipe () disposed inside the muffler. The inlet pipe has an open end () connected to an exhaust port of the engine via an exhaust pipe (), a closed end () opposite to the open end, and perforations () provided near the open end and connecting an internal space of the inlet pipe and a first sound-deadening chamber (). The closed end of the inlet pipe is exposed to the outside air, so that exhaust gasses are cooled when the gasses impinge on the closed end of the inlet pipe.