EP 0623190 B1 19950531 - TAPPET WITH HYDRAULIC COMPENSATION OF VALVE CLEARANCE AND FREE PISTON.
Title (en)
TAPPET WITH HYDRAULIC COMPENSATION OF VALVE CLEARANCE AND FREE PISTON.
Title (de)
STÖSSEL MIT HYDRAULISCHEM VENTILSPIELAUSGLEICH UND LEERHUBKOLBEN.
Title (fr)
POUSSOIR A COMPENSATION HYDRAULIQUE DU JEU DE SOUPAPE ET PISTON LIBRE.
Publication
Application
Priority
- DE 4201618 A 19920122
- EP 9202409 W 19921021
Abstract (en)
[origin: DE4201618A1] A tappet (2) has a hydraulic clearance compensating element (8) composed of a high pressure chamber (18), a housing (3) with a spring-loaded, longitudinally movable compensating piston (15) and a free piston (11) with a smaller diameter than the compensating piston (15). In order to obtain by simple manufacturing means a reduced elasticity in valve operation during the base circle phase of a cam (6), the ratio between the projected surface (20) of the compensating piston (1) that faces the high pressure chamber (18) and the projected surface (19) of the free piston (11) that faces the high pressure chamber (18) is higher than 3.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F01L 1/25 (2013.01 - EP US); Y10T 74/2107 (2015.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
DE 4201618 A1 19930729; DE 59202419 D1 19950706; EP 0623190 A1 19941109; EP 0623190 B1 19950531; US 5408959 A 19950425; WO 9315308 A1 19930805
DOCDB simple family (application)
DE 4201618 A 19920122; DE 59202419 T 19921021; EP 9202409 W 19921021; EP 92922696 A 19921021; US 25663394 A 19940715