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:
Feb. 21, 2017
Filed:
Jan. 27, 2016
Honda Motor Co., Ltd., Tokyo, JP;
Yoshitaka Hayama, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
An exhaust muffler has downstream and upstream chambers which are defined in a casing. Exhaust gas from an internal combustion engine is introduced into an end of a first conduit having a pierced region which is held in fluid communication with the downstream chamber and an end of a second conduit. The other ends of the first and second conduits are open into the upstream chamber. A valve means configured to open/close the first and second conduits is actuated by valve actuating means to switch between a short channel mode discharging the exhaust gas from at least the first conduit through the pierced region, the downstream chamber, and a discharge pipe out of the casing and a long channel mode discharging the exhaust gas from at least the second conduit through the upstream chamber, the pierced region, the downstream chamber, and the discharge pipe out of the casing.