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An exhaust gas turbocharger system with three-stage adjustable nozzle

A technology of exhaust gas turbine and supercharger, which is applied in the field of machinery and can solve problems such as the inability to meet the range of adjustable flow channels

Active Publication Date: 2016-01-06
施永强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the above-mentioned technical solutions cannot meet the requirement of adjusting the range of flow passages, which is very important to improve the working state of the engine at ultra-high speed and low speed.

Method used

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  • An exhaust gas turbocharger system with three-stage adjustable nozzle
  • An exhaust gas turbocharger system with three-stage adjustable nozzle
  • An exhaust gas turbocharger system with three-stage adjustable nozzle

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Embodiment Construction

[0032] Such as figure 1 As shown, the supercharger includes a turbine housing 4, an intermediate housing 7 with a raised portion in the middle, a turbine 5, and a turbine drive shaft. The exhaust gas turbine components are installed in the intermediate housing and fixed to the turbine housing. The turbine housing has a built-in turbine. The transmission shaft, the raised part of the intermediate shell is arranged at the root and bottom of the turbine, and the turbine is in the volute cavity. It is characterized in that the supercharger also includes a cap-shaped fixed vane nozzle ring 1 with a hole in the middle, a plurality of adjustable Vane nozzle 2, adjustable cylindrical nozzle 3 and two T-shaped levers 6, fixed nozzles 13 are evenly distributed on the side end surface of the fixed vane nozzle ring, and the fixed nozzles are arranged in the exhaust flow channel of the volute cavity and flow in the direction of the exhaust gas flow. With a certain inclination angle, the fi...

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Abstract

Disclosed is an exhaust gas turbocharger system with three-level adjustable nozzles, comprising a cap-shaped fixed blade nozzle ring (1) with a central hole, a plurality of adjustable blade nozzles (2), an adjustable cylindrical nozzle (3) and two T-shaped levers (6), wherein fixed nozzles (13) are uniformly distributed on a side end face of the fixed blade nozzle ring (1), and one end of each T-shaped lever (6) is connected to a transmission device for controlling the T-shaped lever (6) to axially move; the adjustable cylindrical nozzle (3) is connected between the two T-shaped levers (6), the adjustable cylindrical nozzle (3) has a cylindrical shape, and the adjustable blade nozzles (2) are fixed to the cylindrical periphery of the adjustable cylindrical nozzle (3); and the T-shaped levers (6) axially move in the direction of the fixed nozzles (13), so as to drive the adjustable blade nozzles (2) to extend out of an end face of the fixed blade nozzle ring (1) and to drive the adjustable cylindrical nozzle (3) to extend out of the hole of the fixed blade nozzle ring. Due to the fact that the outlet section area of the nozzles changes by means of axial movement, and the minimum outlet section area can be achieved, the adjustment range is enlarged.

Description

technical field [0001] The invention relates to an exhaust gas turbocharger system with three-stage adjustable nozzles, which belongs to the technical field of machinery. Background technique [0002] At present, exhaust gas turbocharger technology has been widely used in internal combustion engines, which can increase the output power of internal combustion engines, reduce fuel consumption per unit power and reduce the discharge of harmful gases and harmful particles. However, due to the frequent change of working conditions of the vehicle engine, the supercharger will work in the non-efficient area during part of the working period, thereby reducing the supercharging effect and failing to meet the energy saving and emission reduction targets. [0003] In order to adapt the supercharger to the reality of the variable working conditions of the vehicle engine, the measure adopted now is to change the bladeless runner turbine casing 4 in the original structure into a three-sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D17/16F02B37/24
CPCF01D17/16F02B37/24Y02T10/12
Inventor 施永强
Owner 施永强
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