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Title:
BY-PASS VALVE ARRANGEMENT AND EXHAUST SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/172169
Kind Code:
A3
Abstract:
The by-pass valve arrangement (1) for an exhaust system of an internal combustion engine (2) comprises a valve (5) and ducting having a first inlet (3a), a second inlet (4a), a first outlet (3b) and a second outlet (4b). In a first position of the valve (5), flow from the first inlet (3a) to the first outlet (3b) and from the second inlet (4a) to the second outlet (4b) is allowed, and flow from the first inlet (3a) to the second outlet (4b) and from the second inlet (4a) to the first outlet (3b) is blocked. In a second position, flow from the first inlet (3a) to the second outlet (4b) and from the second inlet (4a) to the first outlet (3b) is allowed, and flow from the first inlet (3a) to the first outlet (3b) and from the second inlet (4a) to the second outlet (4b) is blocked. The invention also concerns an exhaust system.

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Inventors:
LUNDIN KAJ (FI)
Application Number:
PCT/FI2012/050583
Publication Date:
April 25, 2013
Filing Date:
June 11, 2012
Export Citation:
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Assignee:
WAERTSILAE FINLAND OY (FI)
LUNDIN KAJ (FI)
International Classes:
F01N13/18; F01N13/00
Foreign References:
US5398503A1995-03-21
FR2802443A12001-06-22
FR2859238A12005-03-04
Attorney, Agent or Firm:
BERGGREN OY AB (Helsinki, FI)
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