EP 0257354 B1 19900530 - SELF-ADJUSTING HYDRAULIC VALVE TAPPET
Title (en)
SELF-ADJUSTING HYDRAULIC VALVE TAPPET
Publication
Application
Priority
DE 3628619 A 19860822
Abstract (en)
[origin: US4782799A] A self-adjusting hydraulic valve tappet arranged in a guide bore of a cylinder head of an internal combustion engine and being contacted at one end face of the valve tappet by a cam and bearing with a second end face against the end of a valve stem, the tappet comprising a cup-shaped housing comprised of a hollow cylindrical wall closed at one end by an end member against the outside of which the cam abuts and a cylindrical guide sleeve concentric with the cylindrical wall and surrounded by an external oil reservoir and in which the play compensating element is guided for longitudinal movement and abuts at its end against the valve stem characterized in that the valve tappet is comprised of three main structural elements of (a) the outer metallic cup-shaped housing (1) (b) a polymeric inner element (4,31,32) accommodated therein defining the guide sleeve and forming the external oil reservoir (17) together with the cup-shaped housing (1) and (c) the self-adjusting play compensating element (7) guided for longitudinal movement in the guide sleeve.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F01L 1/25 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0257354 A1 19880302; EP 0257354 B1 19900530; BR 8704324 A 19880419; DE 3628619 A1 19880303; DE 3762982 D1 19900705; ES 2015017 B3 19900801; JP S6357803 A 19880312; US 4782799 A 19881108
DOCDB simple family (application)
EP 87111152 A 19870801; BR 8704324 A 19870821; DE 3628619 A 19860822; DE 3762982 T 19870801; ES 87111152 T 19870801; JP 20664087 A 19870821; US 8462787 A 19870811