EP 0254967 A2 19880203 - Hydraulic valve control device.
Title (en)
Hydraulic valve control device.
Title (de)
Vorrichtung zur hydraulischen Steuerung von Hubventilen.
Title (fr)
Dispositif pour la commande hydraulique de soupapes.
Publication
Application
Priority
DE 3625627 A 19860729
Abstract (en)
1. A device for hydraulic control of reciprocating valves on piston engines, the opening movement being transmitted directly to the valve via a hydraulic chamber and a working piston and the closing movement being triggered by an energy accumulating element engaging the valve, a throttle gap formed by the working piston and a stationary wall of the hydraulic chamber being provided for the fluid displaced in the process by the working cylinder, characterised in that a freely-movable orifice plate (13) is provided in the hydraulic chamber (3) between an abutment (23) and a stationary abutment (15) on the casing, and divides the throttle gap into a first damping gap (19) formed by the orifice plate (13) and the working piston (4), and a second damping gap (20) formed by the orifice plate (13) and the abutment (15) on the casing.
Abstract (de)
In einer hydraulischen Ventilhubsteuerung ist eine Bremsvorrichtung mit einer beweglichen Drosselscheibe (13) vorgesehen, wodurch der Bremsvorgang unterteilt wird in eine Vorbremsphase, während derer zwei Drosselspalte zur Wirkung kommen und einer Endbremsphase, während derer die Drosselscheibe an einem Anschlag anliegt, und der Ventilschließbewegung von nurmehr einem Dämpfungsspalt eine deutlich verstärkte Bremskraft entgegengesetzt wird.
IPC 1-7
IPC 8 full level
CPC (source: EP)
F01L 1/16 (2013.01); F01L 9/12 (2021.01); F01L 2001/34446 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0254967 A2 19880203; EP 0254967 A3 19880330; EP 0254967 B1 19891108; DE 3625627 A1 19880204; DE 3625627 C2 19880623; DE 3760968 D1 19891214; ES 2011471 B3 19900116
DOCDB simple family (application)
EP 87110247 A 19870716; DE 3625627 A 19860729; DE 3760968 T 19870716; ES 87110247 T 19870716