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Servo Drives for Bidirectional Actuators

A servo drive device, actuator technology, applied in the direction of valve device, valve operation/release device, charging system, etc., can solve the problem of short actuation time

Inactive Publication Date: 2012-02-22
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, relatively short actuation times must be achieved
Similar problems can also occur with other components of the exhaust system

Method used

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  • Servo Drives for Bidirectional Actuators
  • Servo Drives for Bidirectional Actuators
  • Servo Drives for Bidirectional Actuators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] according to Figure 1-4 , A servo drive device 1 with which the actuator 3 can be driven, which can be adjusted in both directions according to the bidirectional arrow 2. The device includes a motor 4, a gear device 5 and a crank connecting rod 6. The crankshaft connecting rod 6 can be connected to the actuator 3 through the first crank connecting rod bearing 7 in an engaging manner. Here, the corresponding first crank connecting rod bearing shaft is marked as 8. In the assembled state shown in the figure, the crank connecting rod 6 through its first crank connecting rod bearing 7 is connected to the actuator 3 in an engaging manner. in Figure 1-3 In the illustrated embodiment, the actuator 3 is a valve assembly 9 carrying a valve body 10. according to Figure 4 In the embodiment shown in the actuator 3, the actuator 3 is used to drive a reciprocating lever (return lever) 11, which in turn is connected to the valve body 12 in a rotationally fixed manner, and is rotat...

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PUM

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Abstract

An actuating drive for a bi-directionally adjustable actuator for at least on of an exhaust gas recirculation device and an exhaust gas turbocharger. The actuating drive includes an electric motor; a toggle lever, which articulates with the actuator via a first toggle lever bearing; and a gear mechanism, connecting the electric motor with the toggle lever, wherein the gear mechanism includes a toothing element on an output side mounted in a pivot bearing, wherein the toggle lever is articulating mounted via a second toggle lever bearing, wherein in a starting state of the actuating drive is associated with a starting position of the actuator, and wherein an acute angle exists between a first straight line extending through the first toggle lever bearing and through the second toggle lever bearing, and a second straight line extending through the pivot bearing and through the second toggle lever bearing.

Description

Technical field [0001] The invention relates to an actuating drive for a bidirectional adjustable actuator. The present invention also relates to an exhaust gas recirculation device or exhaust gas turbocharger equipped with the above-mentioned servo drive device. Background technique [0002] In order to be able to actuate the valve assembly, a servo drive device is required by which the exhaust gas recirculation valve is used to control the exhaust gas recirculation rate. The demand for the above-mentioned types of servo drives is gradually increasing. For example, the soot carried in the exhaust gas may cause the valve assembly to stick to the auxiliary valve seat, and therefore a relatively high driving force is required to lift the valve assembly from the seat. In addition, the valve assembly must be able to achieve a relatively large stroke to achieve a high exhaust gas recirculation rate. In addition, a relatively short actuation time must be achieved. Similar problems ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/53F02M25/07F02B37/18
CPCF02M25/0701F16K31/53F02M25/0793F02M25/0773F02M25/0789Y02T10/121Y02T10/144F02B37/186F02M26/50F02M26/54F02M26/67F02M26/70Y10T74/19502Y02T10/12
Inventor 赖因哈德·格拉纳大卫·克勒门
Owner MAHLE INT GMBH
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