Title:
ENGINE VALVE ACTUATION FOR COMBUSTION ENHANCEMENT
Document Type and Number:
WIPO Patent Application WO2005068809
Kind Code:
A3
Abstract:
A combustion chamber valve, such as an intake valve or an exhaust valve, is briefly opened during the compression and/or power strokes of a 4-stroke combustion cycle in an internal combustion engine (in particular, a diesel or CI engine). The brief opening may (1) enhance mixing withing the combustion chamber, allowing more complete oxidation of particulates to decrease engine emissions; and/or may (2) delay ignition until a more desirable time, potentially allowing a means of timing ignition in otherwise difficult-to-control conditions, e.g., in HCCI (Homogeneous Charge Compression Ignition) conditions.
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Inventors:
REITZ ROLF D (US)
RUTLAND CHRISTOPHER J (US)
JHAVAR RAHUL (US)
RUTLAND CHRISTOPHER J (US)
JHAVAR RAHUL (US)
Application Number:
PCT/US2004/001292
Publication Date:
October 13, 2005
Filing Date:
January 16, 2004
Export Citation:
Assignee:
WISCONSIN ALUMNI RES FOUND (US)
REITZ ROLF D (US)
RUTLAND CHRISTOPHER J (US)
JHAVAR RAHUL (US)
REITZ ROLF D (US)
RUTLAND CHRISTOPHER J (US)
JHAVAR RAHUL (US)
International Classes:
F02D13/02; F02B1/12; (IPC1-7): F02D13/02
Domestic Patent References:
| WO2001046573A1 | 2001-06-28 |
Foreign References:
| US5201907A | 1993-04-13 | |||
| EP1136682A2 | 2001-09-26 | |||
| US5228422A | 1993-07-20 | |||
| DE10002483A1 | 2001-07-26 | |||
| DE19905636A1 | 2000-03-30 | |||
| US6230683B1 | 2001-05-15 | |||
| US20020117131A1 | 2002-08-29 | |||
| US5862790A | 1999-01-26 | |||
| EP0961018A1 | 1999-12-01 |
Other References:
See also references of EP 1588040A2
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