EP 1818530 A1 20070815 - LUBRICATION DEVICE FOR CYLINDER INNER WALL IN TWO-STROKE CYCLE INTERNAL COMBUSTION ENGINE
Title (en)
LUBRICATION DEVICE FOR CYLINDER INNER WALL IN TWO-STROKE CYCLE INTERNAL COMBUSTION ENGINE
Title (de)
SCHMIERVORRICHTUNG FÜR ZYLINDERINNENWAND IN EINEM ZWEITAKT-VERBRENNUNGSMOTOR
Title (fr)
DISPOSITIF DE LUBRIFICATION POUR PAROI INTERIEURE DE CYLINDRE DANS MOTEUR A COMBUSTION INTERNE A DEUX TEMPS
Publication
Application
Priority
- JP 2005022501 W 20051201
- JP 2004350772 A 20041203
Abstract (en)
A plurality of dimples 10 are provided at the region of an overlap stroke section W, where piston rings 8 provided at an upper end of a piston around an outer circumference thereof and oil rings 9 provided at a lower end of the piston around the outer circumference thereof overlap each other as the piston reciprocates, on a portion of a cylinder inner wall surface 2a which lies below lower edges of opening holes in scavenging ports, or a surface roughness of the region of the overlap stroke section W is increased higher than that of the remaining region of the cylinder inner wall surface 2a.
IPC 8 full level
F02F 1/20 (2006.01); F02F 1/22 (2006.01); F16J 10/04 (2006.01)
CPC (source: EP)
Citation (search report)
See references of WO 2006059790A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1818530 A1 20070815; JP 2006161589 A 20060622; JP 4276617 B2 20090610; WO 2006059790 A1 20060608
DOCDB simple family (application)
EP 05814347 A 20051201; JP 2004350772 A 20041203; JP 2005022501 W 20051201