EP 0444027 B1 19940601 - DEVICE FOR SCAVENGING THE CYLINDER OF A TWO-STROKE ENGINE, SUPERCHARGING BY THE EFFECT OF POST-FILLING, AND ENGINE RELATED THERETO.
Title (en)
DEVICE FOR SCAVENGING THE CYLINDER OF A TWO-STROKE ENGINE, SUPERCHARGING BY THE EFFECT OF POST-FILLING, AND ENGINE RELATED THERETO.
Title (de)
VORRICHTUNG ZUR ZYLINDERSPÜLUNG EINES ZWEITAKTMOTORS MIT SELBSTAUFLADUNG DURCH NACHFÜLLEFFEKT UND MOTOR.
Title (fr)
DISPOSITIF DE BALAYAGE D'UN CYLINDRE D'UN MOTEUR DEUX TEMPS, A AUTOSURALIMENTATION PAR EFFET DE POST-REMPLISSAGE, ET MOTEUR.
Publication
Application
Priority
- FR 8804002 A 19880325
- FR 8900139 W 19890324
Abstract (en)
[origin: WO8909328A1] Process and device for scavenging the cylinder of a two-stroke internal combustion engine, with supercharging by the effect of post-filling. Said device is characterized in that the intake set (12a, 12b; 14a, 14b) is arranged in relation to the cylinder (10) so that the scavenging air flows from the intake ports (12a, 12b) join at an impact point located on the upper wall (10a) of the cylinder (10) above the exhausted ports (16), in order to effect a so-called reverse loop. The altitude (A) of the lower edge of the e exhaust ports (12a, 12b) is arranged sufficiently high in the cylinder (10) in relation to the altitude (B) of the upper edge of the exhaust ports (16) to avoid essentially every possibility of a crossing of air flows entering the cylinder (10) with the burnt gases emerging from the cylinder (10) during passage between the intake point of the scavenging air flows and their point of impact. In this way a substantial improvement in scavenging is obtained, thereby improving engine operation.
IPC 1-7
IPC 8 full level
F02B 25/16 (2006.01)
CPC (source: EP)
F02B 25/16 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
WO 8909328 A1 19891005; DE 68915776 D1 19940707; DE 68915776 T2 19950119; EP 0444027 A1 19910904; EP 0444027 B1 19940601; FR 2629131 A1 19890929; JP 2707344 B2 19980128; JP H03503441 A 19910801
DOCDB simple family (application)
FR 8900139 W 19890324; DE 68915776 T 19890324; EP 89904084 A 19890324; FR 8804002 A 19880325; JP 50375889 A 19890324