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Patent Searching and Data


Title:
EXHAUST VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/017437
Kind Code:
A1
Abstract:
An exhaust valve device (10, 110, 210, 310, 410) is provided with: a valve body (20) which is installed in an exhaust passage (9b) inside a muffler (1) and which opens and closes the exhaust passage; a valve seat (11) on which the valve body (20) abuts when the valve body (20) is closed; a support shaft (17) which is fixed to the valve seat (11) and which pivotally supports the valve body (20); a coil spring (30) through which the support shaft (17) is inserted and which biases the valve body (20); and a buffer member (29, 129, 229, 329A, 329B, 329C, 429D, 429E) interposed between the coil spring (30) and the support shaft (17). The buffer member (29, 129, 229, 329A, 329B, 329C, 429D, 429E) is relatively rotatable with respect to the support shaft.

Inventors:
INOUE KATSUFUMI (JP)
MASUBUCHI HIROAKI (JP)
KOZUKA YASUNORI (JP)
UCHIDA SHOU (JP)
MAEZONO YOUHEI (JP)
HAYASHIDA MIZUKI (JP)
Application Number:
PCT/JP2018/027128
Publication Date:
January 24, 2019
Filing Date:
July 19, 2018
Export Citation:
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Assignee:
CALSONIC KANSEI CORP (JP)
International Classes:
F01N13/08
Foreign References:
JPH11324638A1999-11-26
JP2012241543A2012-12-10
JP2002106323A2002-04-10
US20130056083A12013-03-07
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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