Two-stroke engine

Details Two-stroke engine Two-stroke engine

2005-08-23

2005-08-23

Kwon, John T. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

C123S0730PP, C123S0650VD

Reexamination Certificate

active

06932032

ABSTRACT:
A two-stroke engine (1) has a combustion chamber (3) disposed in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5). The piston (5) drives a crankshaft (7) via a connecting rod (6) and the crankshaft (7) is rotatably journalled in a crankcase (4). The two-stroke engine (1) has an intake channel (8) for the supply of fuel into the crankcase (4), an outlet (13) for exhaust gases from the combustion chamber (3) and an air channel (10) for the supply of substantially fuel-free air. A throttle element (18) is mounted in the air channel (10). At pregiven positions of the piston (5), the crankcase (4) is connected via at least one transfer channel (14) to the combustion chamber (3). In order to prevent air from being drawn by suction into the air channel because of leakages during idle or at low rpm, a fluid connection is provided between the air channel (10) downstream of the throttle element (18) and the crankcase (4) for underpressure compensation which connection is present at least partially for a position of the piston from 90° ahead of bottom dead center to 90° after bottom dead center. A connection between the crankcase (4) and the intake channel (8) can be provided in lieu of, or in addition to, the connection to the air channel (10).

REFERENCES:
patent: 5870981 (1999-02-01), Knaus et al.
patent: 6712029 (2004-03-01), Andersson et al.
patent: 2002/0073943 (2002-06-01), Geyer et al.
patent: 2003/0200941 (2003-10-01), Schlossarczyk et al.
patent: 2005/0045123 (2005-03-01), Klaric
patent: 2005/0051118 (2005-03-01), Hoche et al.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3523404