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Adjustable nozzles for turbochargers

An adjustable, nozzle technology, applied in the direction of machine/engine, engine components, internal combustion piston engine, etc., can solve the problems affecting the engine's response ability, lag, etc., to achieve the effect of simple and easy structure and technical improvement effect

Inactive Publication Date: 2015-10-21
汉美综合科技(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing variable supercharging turbine mechanism, in order to rotate and move smoothly clockwise or counterclockwise, must have a certain gap between its rigid arm 8 and the drive disc 3, which causes when running, especially when turning There will be hysteresis, which will affect the engine's ability to respond to load changes or vehicle speed changes.

Method used

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  • Adjustable nozzles for turbochargers
  • Adjustable nozzles for turbochargers
  • Adjustable nozzles for turbochargers

Examples

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Embodiment 1

[0023] Such as image 3 As shown, the elastic driven rocker arm 11 is a pivot arm with a longitudinal slot in the middle of the upper section, and the upper section of the pivot arm has a longitudinal slot 13 that runs through to the upper end of the pivot arm. The longitudinal slot 13 makes the upper end of the rotating arm have a certain possibility of elastic loading, so that the upper end of the rotating arm can be compressed and clamped in the groove of the driving disc.

Embodiment 2

[0025] Such as Figure 4 As shown, the elastic driven rocker arm 11 is composed of two symmetrical single arms 12, and the two single arms 12 are fixed as one body with a longitudinal gap.

[0026] Since the present invention provides a mechanical part that can be elastically loaded, that is, the elastic driven rocker arm 11, which replaces the rigid driven rocker arm, can be elastically compressed and assembled in the groove of the drive disc 3, and always keep in contact with the drive disc 3, so It can effectively remove the hysteresis of the rotational movement of the guide vanes. As long as the driving demand of the engine is transmitted to the drive disc 3 through the actuator, the drive disc 3 will immediately drive the elastic driven rocker arm 11 to rotate clockwise or counterclockwise to realize the guide The adjustable nozzle formed by the rotation of the flow vane enables the turbine to obtain the required flow change immediately, and fully improves the response ca...

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Abstract

The invention provides an adjustable nozzle that can improve the reaction sensitivity of a supercharged engine effectively and is applicable to a variable turbosupercharger. The adjustable nozzle comprises guide blades, a blade seat, a driving disk, a driving rocker arm and driven rocker arms, wherein the guide blades are mounted on the blade seat; the driving disk and the blade seat are mounted coaxially through a plurality of rollers; one end of each driven rocker arm and the guide blades are mounted coaxially; the other ends of the driven rocker arms are arranged in a notch of the driving disk in a clamping manner; when the driving rocker arm drives the driving disk to rotate, the driving disk transmits rotary motion to the driven rocker arms through the rollers; the driven rocker arms drive the guide blades to rotate, and are elastic arms; and one end of each elastic arm is elastically compressed and arranged in the notch of the driving disk in a clamping manner, and contacted with the driving disk all the time. The adjustable nozzle is simple and easy in structure, and an effect of technical performance improvement is remarkable.

Description

technical field [0001] The invention relates to the technical field of turbocharged engines, in particular to an adjustable nozzle for a variable geometry turbocharger. Background technique [0002] Existing turbochargers such as figure 1 and figure 2 As shown, it includes a pressure impeller 7 and a turbine 4 installed on the same shaft, and the turbine uses the exhaust gas of the internal combustion engine to generate power. Among them, the power of the turbine is provided to the impeller 7 to compress the surrounding air and provide it to the internal combustion engine; the bearing and the lubrication system are fixed in the middle housing 6 . In a fixed geometry turbine, the exhaust gas enters the turbine 4 directly from the intake. Whereas in variable geometry turbines, such as figure 1 As shown, there is a group of nozzles enclosed between the volute 5 and the turbine 4, and these nozzles are formed between the guide vanes 1 and the side walls; the guide vanes 1 a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/24F01D17/16
CPCY02T10/144Y02T10/12
Inventor 法兹尔
Owner 汉美综合科技(常州)有限公司