Double-power turbo-supercharger free of hysteresis and capable of dissipating heat quickly

A turbocharger, dual-power technology, used in engine components, combustion engines, machines/engines, etc., can solve the problem that turbocharger bearings and sealing components cannot achieve long-life use, turbocharger lag, and oil burning. and other problems, to achieve the effect of reducing the power loss of exhaust gas, reducing the transmission ratio and reducing the load

Pending Publication Date: 2020-12-04
牛清锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high speed and high temperature, the bearings and sealing elements in the turbocharger cannot achieve long service life.
Especially the sealing element, once aging and failure, it will cause the lubricating and cooling oil to leak from the intake and exhaust turbine shafts
Or discharge from the exhaust end to the three-way catalytic converter, blockage and damage the catalytic converter; or enter the cylinder from the intake end to burn, and generate carbon deposits on the piston and valve in the cylinder, affecting engine power
In short, no matter where it is discharged, the engine oil will be consumed too quickly, resulting in the problem of "burning engine oil"
[0006] At present, some vehicles adopt the method of supercharging + turbocharging, which is to solve the shortcomings of the two superchargers, combine the advantages of the two, and solve the problems of low high-speed efficiency of the supercharger and hysteresis of the turbocharger.
The disadvantage is that it increases the cost, volume and weight
In addition, the problem of "burning engine oil" caused by high temperature and high speed has not been properly solved

Method used

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  • Double-power turbo-supercharger free of hysteresis and capable of dissipating heat quickly
  • Double-power turbo-supercharger free of hysteresis and capable of dissipating heat quickly
  • Double-power turbo-supercharger free of hysteresis and capable of dissipating heat quickly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The turbocharger uses the high-speed and high-pressure exhaust gas discharged from the engine to drive the impeller at the exhaust end of the turbocharger to rotate at a high speed, driving the impeller of the compressor on the other side connected to it to rotate at the same time, compressing the intake air and injecting it into the cylinder for combustion. Increase engine power. But the turbocharger needs a large flow of exhaust gas to start, which can only be provided when the engine speed reaches about 1250 rpm. When the car just started, before the engine speed increased from idling 500~600 rpm to more than 1200 rpm, the amount of exhaust gas discharged was not enough to drive the supercharger to work as intake boost, and there was a time lag between the increase in engine power and speed. Therefore, a car equipped with an exhaust gas turbocharger will have a power lag when accelerating from a start.

[0029] Shortly after the engine is started, the exhaust gas te...

Embodiment 2

[0039] The difference between embodiment 2 and embodiment 1 is that a deflector is provided on the air guide cover.

[0040] A deflector facing the position of the bearing box is provided on the inner side wall of the air guide cover E located outside the exhaust gas turbine housing 1 and the intake turbine housing 2 . When the intake fan blade D rotates, the air outside the air guide cover E is sucked into the air guide cover E, and is discharged outward along the guide gap between the air guide cover E and the inner shells. The air in the air guide cover E will be guided by the deflector and directly blown onto the bearing box to cool it down, thereby improving the heat dissipation efficiency of the bearing box.

Embodiment 3

[0042] The difference between embodiment 3 and embodiment 2 is that the sealed bearing box is provided with an oil pipe that enters the bearing box from one side of the sealed bearing box and discharges from the other side. Lubricating oil is injected into the box, and the injected lubricating oil directly lubricates and cools the inside of the bearing box. When the controller automatically controls the motor / generator 4 to continue to work after the engine is turned off, the rotating intake turbine shaft will cause the lubricating oil at the bearing to continue to lubricate the inside of the sealed bearing box to avoid engine oil remaining at the turbine shaft Oxidation (carbon deposition) occurs due to "thermal shutdown".

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Abstract

The invention discloses a double-power turbo-supercharger free of hysteresis and capable of dissipating heat quickly. The double-power turbo-supercharger comprises a waste gas turbine shell, an air inlet turbine shell, a planetary gear set and an electric motor / generator. A turbine shaft is mounted in the centers in the waste gas turbine shell and the air inlet turbine shell in a penetrating mode,one end of the turbine shaft is connected with the output end of the planetary gear set through an electromagnetic clutch, a rotating shaft of the electric motor / generator is connected with the inputend of the planetary gear set, a waste gas impeller and an air inlet turbine are mounted at turbine shaft sections located in the waste gas turbine shell and the air inlet turbine shell correspondingly, and the air inlet turbine shell is provided with an air inlet channel and a channel communicating with an air inlet of an air cylinder. Through the structure of the double-power turbo-superchargerfree of hysteresis and capable of dissipating the heat quickly, blades of the air inlet turbine are not limited by the size any more, so that supercharging is free of hysteresis, and the air inflow is larger. The heat dissipation performance of the supercharger is greatly improved while the power of an engine is improved, so that the service life of a bearing and a sealing element of the supercharger is prolonged, and the problem of engine oil burning caused by oil leakage is reduced or eradicated.

Description

technical field [0001] The invention belongs to the technical field of turbochargers, and in particular relates to a turbocharging device with dual power, no hysteresis start, fast supercharging and rapid heat dissipation. Background technique [0002] In order to meet the requirements of environmental protection and energy saving, most automobile engines adopt air intake supercharging devices. By increasing the intake pressure and density, more air is pressed into the engine to increase the output power of the engine or improve fuel economy at the same output power. [0003] Supercharging devices are basically divided into two categories: mechanical supercharging and turbocharging. The supercharger is a forced displacement pump, which is driven by the crankshaft through the transmission belt, starts to work synchronously with the engine, and starts to pressurize the intake air. However, in the final analysis, the supercharger is still driven by the engine. Although the tr...

Claims

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Application Information

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IPC IPC(8): F02B37/10F02B37/14F02B39/00F01D15/10
CPCF01D15/10F02B37/10F02B37/14F02B39/005Y02T10/12
Inventor 高鸿俊陆洋楚晓杏卢庆收贾利军牛清锋
Owner 牛清锋
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