EP 1169556 B1 20041027 - TWO-STROKE INTERNAL COMBUSTION ENGINE
Title (en)
TWO-STROKE INTERNAL COMBUSTION ENGINE
Title (de)
ZWEITAKT-BRENNKRAFTMASCHINE
Title (fr)
MOTEUR A COMBUSTION INTERNE A DEUX TEMPS
Publication
Application
Priority
SE 0000058 W 20000114
Abstract (en)
[origin: WO0151783A1] Crankcase scavenged two-stroke internal combustion engine (1) in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3'). The air passage is arranged from an air inlet (2) equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburettor throttle control. The air inlet extends via at least one connecting duct (6, 6') to at least one connecting port (8, 8') in the engine's cylinder wall (12). The connecting port (8, 8') is arranged so that it in connection with piston positions at the top dead centre is connected with flow paths (10, 10') embodied in the piston (13), which extend to the upper part of a number of transfer ducts (3, 3'). Each flow path through the cylinder and piston is to a great extent arranged in the cylinder's lateral direction, on the one hand in that the connecting port (8, 8') and adjacent scavenging port (31, 31') of the cylinder are shifted sideways in relation to each other along the periphery of the cylinder wall (12), and on the other hand in that the transfer ducts (3, 3') of the cylinder are running essentially in the cylinder's lateral direction away from each transfer port (31, 31') respectively, i.e. tangentially in relation to the circumference of the cylinder wall (12).
IPC 1-7
IPC 8 full level
F02B 25/14 (2006.01); F02B 25/16 (2006.01); F02B 25/22 (2006.01); F02B 75/02 (2006.01)
CPC (source: EP)
F02B 25/14 (2013.01); F02B 25/22 (2013.01); F02B 2075/025 (2013.01)
DOCDB simple family (publication)
WO 0151783 A1 20010719; AT E280898 T1 20041115; AU 3201000 A 20010724; DE 60015314 D1 20041202; DE 60015314 T2 20051110; EP 1169556 A1 20020109; EP 1169556 B1 20041027; JP 2003519747 A 20030624; JP 4481547 B2 20100616
DOCDB simple family (application)
SE 0000058 W 20000114; AT 00909828 T 20000114; AU 3201000 A 20000114; DE 60015314 T 20000114; EP 00909828 A 20000114; JP 2001551963 A 20000114