Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
EXHAUST DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2011/055415
Kind Code:
A1
Abstract:
Provided is an exhaust device of an internal combustion engine wherein the sound pressure level can be prevented from increasing due to the air column resonance of a tail pipe by a simple configuration not requiring complex control while reducing increase in the weight or the manufacturing cost. An oscillating plate (41) having an oscillating shaft (43) fixed to the downstream portion (28B) of a tail pipe perpendicularly to the central axis (O) thereof while being separated from the central axis to the outer circumferential side, and oscillating around the oscillating shaft so that the passage cross section of the tail pipe varies in size by receiving only the exhaust flow flowing through the tail pipe is provided, and the oscillating plate is provided with a lower protrusion (41b) which minimizes the passage cross section of the tail pipe when the oscillating plate oscillates by receiving the exhaust flow according to the operating conditions of an engine (21) upon occurrence of air column resonance in the tail pipe (28).

Inventors:
TAKAGAKI NAKAYA (JP)
WAKATSUKI KAZUTOSHI (JP)
KOMITSU HIDEYUKI (JP)
Application Number:
PCT/JP2009/005945
Publication Date:
May 12, 2011
Filing Date:
November 09, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CO LTD (JP)
TAKAGAKI NAKAYA (JP)
WAKATSUKI KAZUTOSHI (JP)
KOMITSU HIDEYUKI (JP)
International Classes:
F01N1/08; F01N1/02; F01N1/20; F01N13/08
Foreign References:
JPS5886431U1983-06-11
JPH03114513U1991-11-25
JPS61187914U1986-11-22
JP2005171933A2005-06-30
JPH11294136A1999-10-26
JPH09250330A1997-09-22
US5355673A1994-10-18
JP2007205183A2007-08-16
JPS6058474A1985-04-04
JPS4732039A
JPS4813428A
JPS61168673A1986-07-30
JP2003176449A2003-06-24
JP2002501100A2002-01-15
JP2002501124A2002-01-15
JPS53116240A1978-10-11
JP2002266081A2002-09-18
JPH0892540A1996-04-09
JP2003301274A2003-10-24
JPS614775A1986-01-10
Attorney, Agent or Firm:
ARIGA, GUNICHIRO (JP)
Ariga army Ichiro (JP)
Download PDF: