Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle
Patent
1994-06-23
1996-10-01
Okonsky, David A.
Internal-combustion engines
Multiple piston, common nonrestrictive combustion chamber
Four-cycle
123259, F02B 7504
Patent
active
055603262
ABSTRACT:
An internal combustion engine comprises one or more pairs of first and second cylinders, the first cylinder having a larger swept volume than the second cylinder and respective first and second pistons reciprocable in the cylinders. The second piston has a drive stem and divides the second cylinder into a first volume containing the drive stem of the second piston and a second volume between the two pistons. An air inlet and an exhaust outlet are provided for the first cylinder. A common combustion space is formed between the pistons when the pistons are substantially at their inner dead center positions, the combustion space comprising the second volume. A transfer means enables gas flow between the first volume and the combustion space towards the end of the compression stroke while an inhibiting means inhibits the movement of fuel/air mixture from the first volume into the second volume until towards the end of the compression stroke of the second piston. A fuel injector provides fuel to the first volume during the induction stroke of the second piston. The engine also has drive means for driving the second piston, the drive means including means for maintaining the second piston substantially at its inner dead center position during at least a portion of the expansion stroke of the first piston.
REFERENCES:
patent: 1763563 (1930-06-01), Ostberg
patent: 1889650 (1932-11-01), Fredricksen
patent: 1917707 (1933-06-01), Wolf
patent: 2937630 (1960-05-01), Norton
patent: 4070999 (1978-01-01), Matsuno
patent: 4104995 (1978-08-01), Steinbock
patent: 4106445 (1978-08-01), Beveridge
patent: 4258680 (1981-03-01), Eckart
patent: 4363295 (1982-12-01), Brandly
patent: 4378764 (1983-04-01), Jorgensen
patent: 4384553 (1983-05-01), Schechter
patent: 4483289 (1984-11-01), Paul et al.
patent: 4485779 (1984-12-01), Spurk
patent: 4532899 (1985-08-01), Lorts
patent: 4580532 (1986-04-01), Jackson
patent: 4586465 (1986-05-01), Krogdahl
patent: 4759319 (1988-07-01), Merritt
patent: 4898126 (1990-02-01), Merritt
patent: 4981114 (1991-01-01), Skopil
patent: 5009207 (1991-04-01), Merritt
patent: 5060609 (1991-10-01), Merritt
patent: 5117789 (1992-06-01), Merritt
Coventry University
Okonsky David A.
LandOfFree
Internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1496273