Variable nozzle ring component for effectively preventing blade from clamping stagnation

A nozzle ring and blade technology, applied in engine components, stators, machines/engines, etc., can solve problems such as failure to automatically eliminate stagnation, reduce turbine power efficiency, increase air leakage, etc., to eliminate high temperature stagnation and eliminate stagnation. Lag problem, the effect of improving low-speed performance

Pending Publication Date: 2017-07-11
奕森科技(江苏)有限公司
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  • Claims
  • Application Information

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Problems solved by technology

The distance between the two step surfaces X4 minus the height of the blade is the blade clearance. The main disadvantage of this structural design is that when the blade is stuck, since both ends are fixedly assembled, the stuck cannot be automatically eliminated, resulting in pressurization. If the fixed assembly structure at

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  • Variable nozzle ring component for effectively preventing blade from clamping stagnation
  • Variable nozzle ring component for effectively preventing blade from clamping stagnation
  • Variable nozzle ring component for effectively preventing blade from clamping stagnation

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[0031] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, in which some but not all embodiments of the present invention are shown. In fact, the present invention can be embodied in many different forms, and cannot be considered as being limited to the following embodiments only. On the contrary, these embodiments are provided so that the disclosure meets applicable legal requirements.

[0032] Such as image 3 As shown, the volute end of a turbocharger with a variable nozzle ring assembly includes a volute 13 and a turbine 14. The turbine 14 is arranged in the volute 13. The annular flow passage of the volute 13 receives exhaust gas from the engine, and the annular can The variable nozzle ring assembly is arranged between the annular flow passage of the volute 13 of the turbocharger and the turbine 14 to guide the exhaust gas in the annular flow passage of the volute 13 to blow toward the turbine 14; and the angle of t...

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Abstract

The invention discloses a variable nozzle ring component for effectively preventing a blade from clamping stagnation. The variable nozzle ring component for effectively preventing a blade from clamping stagnation is a turbocharger accessory. A turbine end of the turbocharger comprises a turbine housing, a turbine and the variable nozzle ring component. The variable nozzle ring component comprises a blade guard plate, a spacer pin, the blade, a mounting disk, a rigging pin, a synchronizing ring and an adjusting rocker arm. The blade guard plate is located between the turbine housing and the blade; the spacer pin, the blade and the rigging pin are assembled on the mounting disk, the synchronizing ring is fixed on the mounting disk through the rigging pin, the adjusting rocker arm is connected with the synchronizing ring, and the adjusting rocker arm is assembled with a shaft tail end of the blade. The variable nozzle ring component can reduce the high-temperature clamping stagnation risk of a nozzle blade by means of adjusting a design structure of the spacer pin and the blade guard plate, and simultaneously can reduce a design value of the blade clearance and improve the low-speed performance.

Description

technical field [0001] The invention relates to a turbocharger accessory, in particular to a variable nozzle ring assembly which can effectively prevent blades from sticking. Background technique [0002] A turbocharger is a device used in conjunction with an internal combustion engine to increase the engine's power output by compressing air delivered to the engine's intake for mixing with fuel and combustion in the engine. The turbocharger includes a compressor wheel installed in a compressor housing and a turbine installed in a turbine housing, and there is another intermediate housing connected between the turbine housing and the compressor housing, The intermediate housing is used for bearing installation, cooling and lubrication. Wherein the turbine housing is formed separately from the compressor housing, the turbine housing defines a generally annular flow passage surrounding the turbine, and the turbine assembly includes a nozzle for the flow passage into the turbin...

Claims

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Application Information

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IPC IPC(8): F02B37/24F01D9/04F01D17/16
CPCF01D9/041F01D17/16F02B37/24F05D2240/128F05D2220/40Y02T10/12
Inventor 顾茸蕾刘伟朱明明
Owner 奕森科技(江苏)有限公司
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