An electro-hydraulic device for controlling a gas exchange valve for an internal combustion engine

An electro-hydraulic device for controlling a gas exchange valve for an internal combustion engine

A device 1 for controlling a gas exchange valve 2 for an internal combustion engine comprises: an electro-hydraulic valve actuator 36, means 13, 14 for influencing the valve actuator 36 in the opening direction of the gas exchange valve 2 by means of a fluid which is subjected to actuation pressure,...

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Hauptverfasser: SIMON KIESER, UWE HAMMER, BJOERN SCHUETZ
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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creator SIMON KIESER
UWE HAMMER
BJOERN SCHUETZ
description A device 1 for controlling a gas exchange valve 2 for an internal combustion engine comprises: an electro-hydraulic valve actuator 36, means 13, 14 for influencing the valve actuator 36 in the opening direction of the gas exchange valve 2 by means of a fluid which is subjected to actuation pressure, and means 20 for the controlled discharge of the fluid out of the valve actuator 36. In order to be able to reliably and precisely adjust the closing speed of the gas exchange valve 2 and thus the speed at which a valve disc 5 of the gas exchange valve 2 impinges upon the valve seat ring 6, there is included a means 20 for the controlled discharge of the fluid comprising a pressure-controlled restrictor clement 22 which can be influenced by a control pressure and the device 1 further comprises means 24, 25, 26 to regulate the control pressure to a predeterminable pressure value.
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subjects BLASTING
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
title An electro-hydraulic device for controlling a gas exchange valve for an internal combustion engine
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