EP 0670960 B1 19960717 - PISTON-CYLINDER ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE
Title (en)
PISTON-CYLINDER ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE
Title (de)
KOLBEN-ZYLINDER-VORRICHTUNG EINES VERBRENNUNGSMOTORS
Title (fr)
ENSEMBLE PISTON-CYLINDRE D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 9300977 W 19931012
- DE 4240050 A 19921128
Abstract (en)
[origin: DE4240050A1] In a piston-cylinder assembly of an internal combustion engine, especially a two-stroke engine, at least the piston-sliding surface of the cylinder is made of an aluminium alloy. Moreover, the basic material of the piston (1) is an alluminium alloy and at least 80 % of its sliding surface is given a sliding coating (3, 4). The sliding coating (3, 4) on the piston (1) is usually metallic and galvanically applied. The aim is to provide an economically producible piston coating with properties at least as good as those of the former galvanically applied coatings. To this end the cylinder sliding surface has a roughness Ra of less than 1 mu m, while the piston sliding surface consist of resin-bound graphite. The piston rings (6) are made of cast iron or steel and have a convex sliding surface.
IPC 1-7
IPC 8 full level
F02F 1/00 (2006.01); F02F 3/10 (2006.01); F02F 5/00 (2006.01); F02B 75/02 (2006.01)
CPC (source: EP US)
F02F 3/10 (2013.01 - EP US); F02B 2075/025 (2013.01 - EP US); F05C 2201/021 (2013.01 - EP US); F05C 2201/0433 (2013.01 - EP US); F05C 2201/0448 (2013.01 - EP US); F05C 2203/0882 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 4240050 A1 19940601; DE 59303279 D1 19960822; EP 0670960 A1 19950913; EP 0670960 B1 19960717; EP 0670960 B2 20020605; JP H08503528 A 19960416; US 5560283 A 19961001; WO 9412783 A1 19940609
DOCDB simple family (application)
DE 4240050 A 19921128; DE 59303279 T 19931012; DE 9300977 W 19931012; EP 93921822 A 19931012; JP 51262594 A 19931012; US 44687895 A 19950526