Exhaust gas turbocharger system with three-level adjustable nozzles

A technology of exhaust gas turbine and supercharger, applied in the field of machinery, can solve problems such as the inability to adjust the flow channel range

Active Publication Date: 2014-12-10
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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  • Exhaust gas turbocharger system with three-level adjustable nozzles
  • Exhaust gas turbocharger system with three-level adjustable nozzles
  • Exhaust gas turbocharger system with three-level adjustable nozzles

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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

The invention provides an exhaust gas turbocharger system with three-level adjustable nozzles. The exhaust gas turbocharger system comprises a cap-shaped fixed blade nozzle ring, a plurality of adjustable blade nozzles, an adjustable cylindrical nozzle and two T-shaped levers, wherein a hole is formed in the center of the cap-shaped fixed blade nozzle ring. Fixed nozzles are evenly distributed on the side end face of the fixed blade nozzle ring, and one end of each T-shaped lever is connected with a transmission device controlling the T-shaped lever to do axial movement. The adjustable cylindrical nozzle is connected between the two T-shaped levers and is in a cylinder shape, and the adjustable blade nozzles are fixed to the cylinder peripheries of the adjustable cylindrical nozzles. The T-shaped levers do axial movement in the direction of the fixed nozzles to drive the adjustable blade nozzles to extend out of the end face of the fixed blade nozzle ring and drive the adjustable cylindrical nozzle to extend out of the hole of the fixed blade nozzle ring. Due to the fact that the sectional area of nozzle outlets changes due to axial movement, the minimum sectional area of the outlets can be achieved, and compared with the existing patented technology, the adjusting range is enlarged, and the exhaust gas turbocharger system is of a novel three-level adjustable nozzle structure.

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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IPC IPC(8): F01D17/16F02B37/24
CPCF01D17/16F02B37/24Y02T10/12
Inventor 施永强
Owner 施永强
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