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Sectional travel characteristic pneumatic actuator of turbocharger

A technology of turbochargers and pneumatic actuators, which is applied in the direction of machines/engines, combustion engines, internal combustion piston engines, etc., and can solve the problems that the main core rod is not centered, complicated, and prone to force distortion.

Active Publication Date: 2013-01-02
康跃科技(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of mechanism is very complicated and requires high machining accuracy. Moreover, the main core rod is not centered, and it is easy to be skewed by force, causing the locking mechanism to be stuck.
In actual processing, it is difficult to engineer

Method used

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  • Sectional travel characteristic pneumatic actuator of turbocharger
  • Sectional travel characteristic pneumatic actuator of turbocharger
  • Sectional travel characteristic pneumatic actuator of turbocharger

Examples

Experimental program
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Embodiment Construction

[0037] Examples such as Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, a pneumatic actuator device with segmented stroke characteristics of a turbocharger includes an upper casing 8 and a lower casing 1;

[0038] A rubber diaphragm 6 is provided between the upper shell 8 and the lower shell 1;

[0039] The rubber diaphragm 6 separates the cavity between the upper casing 8 and the lower casing 1 into two cavities that are not connected to each other: a first cavity 22 and a second cavity 23;

[0040] A diaphragm seat 7 is provided at a position close to the rubber diaphragm 6 in the second cavity 23;

[0041] A core rod 3 is connected to the diaphragm seat 7, and two springs with different elastic coefficients, an inner spring 13 and an outer spring 14, are installed on the core rod 3.

[0042] The outer spring 14 is sleeved on the outside of the inner spring 13 , and the inner spring locking mechanism is installed on the core rod 3 .

[0...

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Abstract

The invention discloses a sectional travel characteristic pneumatic actuator of a turbocharger. The sectional travel characteristic pneumatic actuator comprises an upper housing and a lower housing, wherein a rubber diaphragm is arranged between the upper housing and the lower housing; a cavity between the upper housing and the lower housing is divided into two hollow chambers through the rubber diaphragm, and the two hollow chambers are respectively a first hollow chamber and a second hollow chamber which are not intercommunicated; the second hollow chamber is internally provided with a diaphragm seat at a position close to the rubber diaphragm; a mandrel is connected to the diaphragm seat; two springs with different elastic coefficient are arranged on the mandrel, which are respectively an internal spring and an external spring; the external spring is sleeved outside the internal spring; and an internal spring locking mechanism is arranged on the mandrel. With the adoption of the sectional travel characteristic pneumatic actuator of the turbocharger provided by the invention, various travel characteristics can be matched, therefore, the performance of a turbocharger can be adjusted to achieve the best state as far as possible.

Description

technical field [0001] The invention relates to a turbocharger pneumatic actuator device, in particular to a turbocharger segmented stroke characteristic pneumatic actuator device, which belongs to the field of internal combustion engines. Background technique [0002] With the continuous development of national emission regulations and user needs, the supercharging technology of engines, especially diesel engines, has also made great progress. The structure of the exhaust gas turbocharger has developed from the traditional fixed section to the exhaust gas bypass that can take into account the low-speed torque of the engine. Structural turbochargers. After the implementation of the National III emission regulations, people's demand for engine turbochargers that can take into account the high and low speed performance of the engine has become more and more intense. The variable cross-section turbocharger has become the focus of research and development at home and abroad. ...

Claims

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Application Information

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IPC IPC(8): F02B37/22
CPCY02T10/144Y02T10/12
Inventor 李永泰桑悟海王航杨金玉郭宗利袁道军张亮
Owner 康跃科技(山东)有限公司
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