Demonstration of HCCI Using a Single Cylinder Four-stroke SI Engine with Modified Valve Timing University of Cambridge

Format:

Book

Conference/Event

Author/Creator:

Kontarakis, George, author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (2000-10-16 : Baltimore, Maryland, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

A standard port fuel injected, unthrottled single cylinder four-stroke SI engine, with a compression ratio of 10.3:1, and using standard gasoline fuel, has been adapted to operate in the homogeneous charge compression ignition (HCCI) mode, by modifying the valve timing. It has been found that over a speed range of between 1300 and 2000 rpm, and lambda values of between 0.95 and 1.1, stable operation is achieved without spark ignition. The internal EGR rate was estimated to be about 60%, and emissions of NOX were typically 0.25 g/kWh.Practical implementation of this HCCI concept will require variable valve timing, which will also enable reversion to standard SI operation for maximum power

Notes:

Vendor supplied data

Publisher Number:

2000-01-2870

Access Restriction:

Restricted for use by site license