Internal-combustion engines – Two-cycle – Rear compression
Reexamination Certificate
2006-03-21
2006-03-21
Yuen, Henry C. (Department: 3747)
Internal-combustion engines
Two-cycle
Rear compression
Reexamination Certificate
active
07013850
ABSTRACT:
A two-stroke engine has a cylinder defining a combustion chamber which is delimited by an upwardly and downwardly moving piston which drives a crankshaft via a connecting rod. The crankshaft is rotatably journalled in the crankcase (4). The two-stroke engine includes an inlet for fuel and an outlet for exhaust gases. At pregiven piston positions, the combustion chamber is connected to the crankcase via a piston window and at least one transfer channel. The transfer channels open via transfer windows into the combustion chamber and open with the transfer opening into the crankcase. The transfer opening and transfer windows open into a region at the cylinder bore which is passed over by the piston. To obtain a delayed inflow of the air/fuel mixture from the crankcase, the transfer opening is not yet fully closed for a piston moved toward the crankcase when the transfer windows begin to open.
REFERENCES:
patent: 4378762 (1983-04-01), Ehrlich
patent: 5947066 (1999-09-01), Ishikawa
patent: 6662765 (2003-12-01), Araki
patent: 2002/0134326 (2002-09-01), Araki
Ali Hyder
Andreas Stihl AG & Co. KG
Ottesen Walter
Yuen Henry C.
LandOfFree
Two-stroke 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 Two-stroke engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-stroke engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3556398