Mixed flow turbocharger with variable nozzle ring

A turbocharger and nozzle ring technology, applied in the direction of machines/engines, stators, engine components, etc., to solve the problem of high-temperature gas sealing, good matching effect, and reduce the effect of air flow loss

Active Publication Date: 2011-09-14
NINGBO WEIFU TIANLI TURBOCHARGING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a mixed-flow turbocharger (VNMT) with a variable nozzle ring, which can well adjust the area of ​​the nozzle ring, thereby regulating and controlling the flow of gas, and at the same tim

Method used

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  • Mixed flow turbocharger with variable nozzle ring
  • Mixed flow turbocharger with variable nozzle ring

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specific Embodiment approach

[0044] The following is attached Figure 5 , 6 , 7, explain the specific implementation of the mixed-flow turbocharger with nozzle ring involved in the present invention: when the working condition of the engine changes, the pneumatic actuator or electric actuator 3 acts on the rocker arm assembly 4 fixed at the turbine end Rotating, the rocker arm assembly 4 moves the active rocker arm 1 through the fork to drive the drive ring 2 inside the supercharger to rotate around the turbine shaft 10 . The driving ring applies a torque to the space mechanism 8, and under the joint action of the rotary pair 15 and the ball pair 14, the nozzle ring blades 5 rotate around their rotating shafts. The torsion angle of the nozzle ring blade 5 has a certain internal relationship with the rotation range of the rocker arm assembly 4, and can be adjusted and controlled in real time according to the opening of the nozzle ring to be satisfied, that is, the pressure of the external air source can b...

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Abstract

The invention discloses a mixed flow turbocharger with a variable nozzle ring which comprises a compressor impeller, a compressor casing, a bearing body, an actuating mechanism, a bearing, a nozzle ring blade, a turbine casing, a turbine shaft and a turbine impeller, wherein the actuating mechanism comprises an actuator, a rocker arm component, a driving ring and spatial link mechanisms; the actuator is connected with the rocker arm component, the rocker arm component is connected with the spatial link mechanisms, and the spatial link mechanisms are connected with the nozzle ring blade; the spatial link mechanisms are annularly arranged in the spherical shell formed by the bearing body and the turbine casing; the right angle shaped by the central line of the radial section outlet of the turbine casing and the axial direction can be changed into an obtuse angle. According to the invention, the top surface and the bottom surface of the nozzle ring blade are designed to concentric circular arcs, and the opening of the mixed flow turbine nozzle ring blade can be adjusted to rotate by utilizing the spatial link mechanisms, thus realizing the best matching of the mixed low turbocharger with the variable nozzle ring and each changing working condition of the internal combustion engine.

Description

technical field [0001] The invention relates to the technical field of a variable geometry turbocharger (VGT), in particular to a mixed flow turbocharger (VNMT) with a variable nozzle ring. Background technique [0002] Turbochargers can be divided into radial turbochargers and mixed flow turbochargers, and can be divided into variable geometry turbochargers (VGT) and non-adjustable geometry turbochargers; [0003] Radial-flow turbochargers are widely used in automotive turbochargers. The reason is that radial-flow turbochargers have simple structure, low cost, good reliability, and high efficiency when they are small in size. The technology has been developed to a very high level. s level. With the development of turbochargers in the direction of high speed, wide working range, and miniaturization, the specific speed of turbochargers is required to be higher and higher, which has exceeded the range of the highest efficiency of radial turbines. Both experiments and theory ...

Claims

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Application Information

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IPC IPC(8): F02B37/24F01D17/16F01D9/02F01D25/24
CPCY02T10/144Y02T10/12
Inventor 黄若尚文涛
Owner NINGBO WEIFU TIANLI TURBOCHARGING TECH
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