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Turbocharger composite nozzle device

A technology of turbocharger and composite nozzle, which is applied in the direction of gas turbine devices, machines/engines, blade support components, etc., and can solve the problems of aerodynamic loss and low efficiency of turbochargers

Active Publication Date: 2011-01-19
康跃科技(山东)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The problem to be solved by the present invention is to design a composite nozzle device for a turbocharger, which can effectively Solve the problem of gas flow loss and improve the matching effect with the working condition of the engine at low flow rate to meet the boosting requirements of the engine

Method used

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  • Turbocharger composite nozzle device
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  • Turbocharger composite nozzle device

Examples

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Embodiment Construction

[0042] Examples such as Figure 4 Shown, a kind of turbocharger compound nozzle device, it comprises turbine impeller 9 and the nozzle ring supporting plate 6 that coaxially installs with it, and on the nozzle ring supporting plate 6, several groups of compound nozzle blades 28 are uniformly arranged in a ring shape, each The composite composite nozzle vane 28 includes a moving vane 17 and a stationary vane 18 . There are several inclined grooves 19 on the nozzle ring supporting plate, and the inclined grooves 19 correspond to the moving blades 17 one by one.

[0043] The moving blade 17, the stationary blade 18 and the chute 19 are all arc-shaped structures. When designing the chute 19, try to make the moving blade 17 move along the chute 19 as far as possible. The transition between the arc surface and the stationary blade 18 does not produce too large a sudden change in the shape of the arc surface, which can reduce the energy loss in the gas flow process and improve the u...

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Abstract

The invention discloses a turbocharger composite nozzle device, comprising a turbine wheel and a nozzle ring supporting disc mounted coaxially therewith. The nozzle ring supporting disc is provided with a plurality of groups of composite nozzle blades each comprising a movable blade and a fixed blade, the fixed blade is fixedly connected with the nozzle ring supporting disc and the movable blade is in transmission connection with a power transmission device; in case of other working conditions of an engine, a transmission mechanism adjusts the position of the movable blade continuously according to the change of the working conditions of the engine, and the control for waste gas energy is realized by changing the area of volute nozzle outlet, in order to improve aerodynamic performance ofthe turbocharger, especially aerodynamic performance of the engine under the working condition of small flow, thus better matching with the engine is reached.

Description

technical field [0001] The invention relates to a variable cross-section turbocharger, in particular to a turbocharger composite nozzle device, which can effectively meet the high and low speed supercharging requirements of the engine, especially improve the low speed torque performance, and belongs to the field of internal combustion engines. Background technique [0002] With the gradual improvement of emission standards, the supercharger has become an indispensable part of modern engines. The supercharger must not only undertake the traditional function of increasing the intake air density of the engine to increase the engine power density and improve combustion, but must also be able to achieve Adjustable function of compressed air pressure and engine exhaust pressure. With the implementation of the National IV emissions, the variable cross-section turbocharger has become the focus of research and development in the turbocharger industry. [0003] At present, it is gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D9/02
CPCF02C6/12F05D2220/40F01D17/165F01D5/146Y02T10/144F02B37/24Y02T10/12
Inventor 王航刘莹王聪聪朱智富李永泰宋丽华信效芬
Owner 康跃科技(山东)有限公司
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