Power plants – Internal combustion engine with treatment or handling of...
Patent
1993-06-04
1995-08-08
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
F01N 710
Patent
active
054388252
ABSTRACT:
A portable, work prooducing apparatus is powered by a single cylinder, two-stroke, internal combustion engine made substantially from aluminum. An exhaust port defined through a wall of the cylinder has inserted therein a steel sleeve with dimensions smaller than the exhaust port to create an air gap between the sleeve and the walls of the exhaust port. A muffler is fastened directly to the cylinder at the exhaust port. Fastening of the muffler acts to press the flange of the sleeve against the exterior of the cylinder, thereby retaining the sleeve within the exhaust port without additional fasteners and creating a good seal with the muffler. The steel and air insulate very hot exhaust gases from the cylinder to prevent overheating of the air-cooled cylinder in the area around the exhaust port that causes premature failure of lubricant and wear of the engine components.
REFERENCES:
patent: 3877126 (1975-04-01), Deutschmann et al.
patent: 3958418 (1976-05-01), Heidacker
patent: 3983696 (1976-10-01), Pflugfelder
patent: 4031699 (1977-06-01), Suga et al.
patent: 4050244 (1977-09-01), Morikawa et al.
patent: 4096690 (1978-06-01), Florek
patent: 4191156 (1980-03-01), Doveri
patent: 4370855 (1983-02-01), Tuggle
LandOfFree
Air-cooled engine for powering portable equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-cooled engine for powering portable equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-cooled engine for powering portable equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-964685