Beare-head engine
The Beare-head engine internal combustion engine technology combines a four-stroke engine bottom end and piston, with a ported cylinder head closely resembling that of a two-stroke engine. The head piston is smaller and moves at half cycling of the bottom piston. Functionally, the cylinder-head piston replaces part of the valve mechanism of a conventional four-stroke engine, and protects the remainder from the higher pressures. This configuration has been described as a six-stroke engine based on adding together the four strokes per cycle of the bottom piston and the two strokes of the cylinder head piston, but there are essentially only 4 strokes, just with an alternative form of valving.
References
- {{cite news|newspaper=Border Chronicle |title=After 16 years' work –- the six-stroke engine |date=November 10, 1994
|author= |publisher= |location=Bordertown, South Australia
|volume=87|issue=4365
|url=http://www.sixstroke.com/images/history/border_november_1994.pdf |format=PDF |access-date= |archive-url=https://web.archive.org/web/20111001055010/http://www.sixstroke.com/images/history/border_november_1994.pdf|archive-date=October 1, 2011|url-status=live}}
External links
- [https://web.archive.org/web/20160304023242/http://www.six-stroke.com/index.html www.six-stroke.com]
- Australian Federal Court judgment — {{cite AustLII|FCA|872|2010|litigants=Jack Brabham Engines Limited v Beare |courtname=auto}}.
- Costs judgment — {{cite AustLII|FCA|1096|2010|litigants=Jack Brabham Engines Limited v Beare |courtname=auto}}.