Drive arrangements for an assembly of an internal combustion engine, and exhaust-gas recirculation valve

A technology of exhaust gas recirculation valve and driving device, which is applied in exhaust gas recirculation, electromechanical device, starting of engine, etc., can solve the problems of high assembly cost and difficult to fix gaskets, and can improve the service life, ensure axial tolerance compensation, reduce The effect of small heat transfer faces

Active Publication Date: 2015-10-21
PIERBURG GMBH & CO KG NEUSS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the support device is expensive to assemble
In particular it is difficult to fix the gasket on the housing and to position it correctly in order to obtain the desired effect of the spacer element

Method used

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  • Drive arrangements for an assembly of an internal combustion engine, and exhaust-gas recirculation valve
  • Drive arrangements for an assembly of an internal combustion engine, and exhaust-gas recirculation valve
  • Drive arrangements for an assembly of an internal combustion engine, and exhaust-gas recirculation valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] Identical features are provided with the same reference numerals in all figures.

[0030] exist figure 1 In , a drive device is shown which has a housing 10 in which a drive element 12 in the form of an electric motor is arranged. In the present exemplary embodiment, a drive pinion 16 for actuating the exhaust gas recirculation valve 18 via the transmission 20 is provided in a rotationally fixed manner on the drive shaft 14 of the electric motor 12 . The exhaust gas recirculation valve 18 has a valve disk 24 arranged on a valve stem 22 which controls a passage 26 between an inlet 28 and an outlet 30 in a known manner. However, the drive device can also be used for operation or for driving pumps or valves.

[0031] The housing 10 shown is composed of several parts and comprises a fixed receiving part 32 shown in section and a cover 38 fixed on the receiving part 32 , which is fixed with a seal 34 in between. on the transmission housing portion 36 . The receiving part...

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PUM

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Abstract

Drive arrangements for assemblies of an internal combustion engine, in particular for exhaust-gas recirculation valves, having a drive element (12), a housing (10) and an intermediate element (64) that is arranged so as to be preloaded between the drive element (12) and the housing (10), are known. To achieve all-round vibration decoupling of the drive element, it is proposed that the housing (10) have a static receiving part (32) and a cover (38) fastened thereon, which cover bears axially against a stop (60) on the static receiving part (32), wherein the intermediate element (64) is arranged radially between the cover (38) and the drive element (12) and so as to be elastically deformed axially between the drive element (12) and the cover (38), such that, in the case of an exhaust-gas recirculation valve, the electric motor (12) is loaded axially against a drive-side bearing bracket (42), which is formed on the housing (10), by the spring force of an elastically deformed intermediate element (64) and is mounted in the cover (38) radially by means of the intermediate element (64).

Description

technical field [0001] The invention relates to a drive for a unit of an internal combustion engine, having a drive element, a housing and a spacer element, which is arranged prestressed between the drive element and the housing, and to an exhaust gas recirculation valve , which has a housing, an electric motor as drive element, which drives a valve through a transmission, this valve controlling the passage between the inlet and the outlet. Background technique [0002] Such a drive unit is used to drive various groups in an internal combustion engine. A distinction is made here between units that are driven continuously or at least over a longer period of time, such as pumps and units for conveying air, exhaust air, coolant or other hydraulic fluids, the drives of which only act within a defined control range , such as valves and valves, especially exhaust gas recirculation valves, waste gas valves or throttle valves. [0003] All these drives are exposed to high vibratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/24F02M25/07F16K1/22F16F1/373F02D9/10
CPCF02M25/0773F02D9/1035F16F1/373H02K5/24Y02T10/121F02M26/54F01P11/20F02N19/04F01M5/021F02N19/02F02N19/10F16F1/376H02K5/00
Inventor O.萨里N.西蒙斯R.萨比克M.博嫩
Owner PIERBURG GMBH & CO KG NEUSS
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