AIR INTAKE CONTROL DEVICE FOR ENGINE

WIPO Patent Application WO2010110212

A1

An air intake control device for an engine, wherein a throttle body (1) having an air intake path (7) is provided with a bypass (30) which bypasses a throttle valve (8) and connects to the air intake path (7) and the bypass (30) is provided with a valve means (31) for opening and closing the bypass (30). The inlet of the bypass (30) comprises a groove (32) formed in the inner surface of the air intake path (7) in such a manner that the groove (32) starts at the upstream end of the throttle body (1) and terminates before the throttle valve (8). Another path (33) of the bypass (30) connecting to the groove (32) is opened in a step section (32c) raised by a step from the inner surface (32b) of the groove (32). Because of the configuration, during the outputting operation of the engine, the inlet of the bypass does not become intake resistance and, even if water drops flow on the inner surface of the air intake path, the water drops can be prevented from entering the bypass.

AKIYAMA HIROSHIGE (JP)
MIURA TATSUYA (JP)
FUJINO YUUKI (JP)

PCT/JP2010/054822

September 30, 2010

March 19, 2010

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KEIHIN CORP (JP)
AKIYAMA HIROSHIGE (JP)
MIURA TATSUYA (JP)
FUJINO YUUKI (JP)

F02M69/32

JP2004092393A	2004-03-25
JP2005273647A	2005-10-06
JPH11201003A	1999-07-27
JPS63136237U	1988-09-07
JPH07269377A	1995-10-17

See also references of EP 2397685A4
None

OCHIAI Takeshi et al. (JP)
Ochiai 健 (JP)

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