Internal-combustion engines – Two-cycle – Rear compression
Patent
1977-01-19
1978-08-22
Burns, Wendell E.
Internal-combustion engines
Two-cycle
Rear compression
123 75B, 60307, F02B 7502
Patent
active
041081196
ABSTRACT:
The invention relates to new and useful improvements in the induction and exhaust processes of the four-stroke internal combustion engine. At the bottom of the induction stroke air is inducted through side-ports in the engine cylinder simultaneously with the induction of air or air-fuel charge through valves located in the combustion chamber. At the end of the expansion stroke, when the piston is once again at the bottom of its stroke, the combustion gases are partially exhausted through the same side-ports and partially through exhaust valves located in the combustion chamber which remain open throughout the exhaust stroke. The cylinder side-ports are manifolded in a manner which prevents serious exhaust gas contamination of the fresh air charge. Operating the engine in this manner improves the engine volumetric efficiency and reduces the normal pumping losses and also decreases the overall engine cooling requirements.
REFERENCES:
patent: 885921 (1908-04-01), Griswold et al.
patent: 1063638 (1913-06-01), Batchelder
patent: 2123302 (1938-07-01), Groth
patent: 3583375 (1971-06-01), Pischinger
LandOfFree
Bottom cycle manifold for four-stroke 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 Bottom cycle manifold for four-stroke internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bottom cycle manifold for four-stroke internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1551211