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Device for controlling an exhaust valve of an internal combustion engine

A technology for exhaust valves and internal combustion engines, applied in the field of exhaust valve devices, to achieve the effect of simple structure and compact structure

Active Publication Date: 2016-11-30
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is disadvantageous in the above-mentioned known devices that the adjustment drive must keep the outlet valve in its preset position

Method used

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  • Device for controlling an exhaust valve of an internal combustion engine
  • Device for controlling an exhaust valve of an internal combustion engine
  • Device for controlling an exhaust valve of an internal combustion engine

Examples

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Embodiment Construction

[0021] figure 1 A device comprising a crank gear 2 which can be driven by the adjustment drive 1 and an exhaust valve 3 which can be driven by the crank gear 2 is shown schematically. The crank transmission mechanism 2 has a push rod 4 and an adjustment rod 5 . An elastic element 6 is arranged in the push rod 4 . The push rod 4 is connected to the adjusting arm 8 of the exhaust valve 3 through the universal joint 7 . The adjusting arm 8 moves the exhaust flap 11 , which can be swung vertically towards the opening 9 of the exhaust duct 10 . The exhaust valve flap 11 , the valve body and the opening 9 of the exhaust channel 10 thus form the valve seat of the exhaust valve 3 . The direction of the pressure acting on the exhaust valve flap 11 in the exhaust passage 10 is indicated by arrows and the letter P in the figures.

[0022] In order to control the exhaust valve 3 , the adjustment lever 5 can be swiveled between two positions I and II by means of the adjustment drive 1 ...

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PUM

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Abstract

The invention relates to a device for controlling an exhaust valve (3), in which a crank mechanism (2) is arranged which can be driven by an adjusting drive mechanism (1), the crank mechanism is connected to the exhaust valve (3) The closed end position can be moved beyond the dead center towards the stop ( 12 ). The crank mechanism ( 2 ) is held in this position without energy consumption and can be moved out of this position again only by the actuation of the adjusting drive ( 1 ). The force introduced from the side of the exhaust valve (3) cannot move the crank mechanism (2).

Description

technical field [0001] The invention relates to a device for controlling an exhaust valve of an internal combustion engine, the device comprising: a controllable adjustment drive mechanism; an adjustment rod that can be driven by the adjustment drive mechanism; putter. Background technique [0002] Such a device is known, for example, from the patent document DE 10 2008 014 609 AI. Devices of this type are commonly used in current internal combustion engines in order to switch, for example, exhaust gas recirculation valves, for adjusting guide vanes of turbochargers or for actuating wastegate valves in turbochargers. To facilitate its control, the adjustment drive has, for example, an electric motor or a pneumatic actuator. In the known device, the adjustment lever is driven by means of a transmission. An elastic element for compensating for load peaks is arranged in the transmission. The push rod enables a spatially separate arrangement of the exhaust valve and the adju...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M26/66
Inventor 芬岑特·克雷米纳米夏埃尔·诺尔
Owner VTESCO TECH GMBH
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