Exhaust by-pass valve for turbocharging system

A turbocharging system and bypass valve technology, which is applied in the direction of machines/engines, internal combustion piston engines, mechanical equipment, etc., can solve the problems of unrealized commercialization, inability to fully and effectively use bypass and discharge gas, and reduce

Inactive Publication Date: 2014-04-16
孙敏超 +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the general exhaust bypass, this technology has increased structural complexity, although the performance has been improved, but the improvement is very limited, and it has not been commercialized so far.
[0011] In order to overcome the fact that the exhaust bypass valve in the prior art cannot make full use of the energy carried by the bypass discharge gas (high temperature and high pressure gas exhaust / charged air), the gas pressure P before the vortex is greatly reduced. T The shortcomings and deficiencies of value / fuel consumption rate, the present invention discloses a new improvement scheme

Method used

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  • Exhaust by-pass valve for turbocharging system
  • Exhaust by-pass valve for turbocharging system
  • Exhaust by-pass valve for turbocharging system

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Embodiment 2

[0067] For medium and large vehicles / ships / stationary supercharged internal combustion engines designed according to the parameters of the rated working conditions of the internal combustion engine / selected with a turbocharger, in the medium and low speed conditions, the pressure will be between the amount of pressurized air supplied and the amount of fuel supplied. Serious mismatching occurs, resulting in too low supercharging pressure, insufficient supercharging air supply, low-speed torque reduction, poor combustion (black smoke), increased fuel consumption rate-the performance of the internal combustion engine is seriously deteriorated. The various schemes in the prior art to improve the performance of the low working condition cannot simply and effectively control the pre-vortex pressure P T Make a drop, but can't get out of trouble. However, the scheme of the present invention can easily pass through the ejection and suction effect of the gas ejector, causing the back pr...

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Abstract

The invention discloses an exhaust by-pass valve for a turbocharging system wherein the exhaust by-pass valve is also a vortex forward pressure regulator / a turbine backpressure regulator. The exhaust by-pass valve for the turbocharging system is characterized in that a gas inject sucking device is mounted behind an exit of a turbine wheel of a turbocharger in a concatenation mode, the gas pressure(backpressure) of the exit of a turbine is caused to be reduced significantly, and therefore variable working condition performance of supercharging internal combustion engines can be improved greatly. The exhaust by-pass valve for the turbocharging system is strong in practicability, mature in technology, simple in structure, safe, reliable and convenient to use, obvious in energy-saving effect, low in cost of technical innovation, and worthy of wide popularization.

Description

technical field [0001] The invention relates to an exhaust bypass valve in a turbocharging system in the technical field of supercharging an internal combustion engine. Background technique [0002] When an internal combustion engine with a wide range of speed changes is matched with a turbocharger with a fixed cross-sectional geometry of the through-flow part, the most widely used, simple and effective regulation in the prior art is to improve the performance of the internal combustion engine under variable operating conditions The method is to install a bleed bypass valve at the turbine outlet of the turbocharger / compressor outlet / at the outlet of the turbine and the compressor to implement bleed adjustment. for example, [0003] ●For automotive internal combustion engines, it is generally required that the turbocharger should be designed / selected so that the internal combustion engine can obtain the maximum torque when the speed is lower than the middle speed, that is, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18
CPCY02T10/144Y02T10/12
Inventor 孙敏超孙正柱
Owner 孙敏超
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