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Electric auxiliary turbine pressurizer

A turbocharger, electric assist technology, applied in the direction of machines/engines, engine components, mechanical equipment, etc., can solve the problem of engine displacement, etc., and achieve the effect of improving power and emission performance and small rotational inertia

Inactive Publication Date: 2012-04-04
孙军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the displacement of the current supercharger that uses the exhaust gas to drive the turbine to rotate cannot match the ideal match with the engine under all working conditions and the "turbo delay" effect, and to provide a simple structure, easy to use, high Electrically Assisted Turbocharger with Reliability and Other Advantages

Method used

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  • Electric auxiliary turbine pressurizer
  • Electric auxiliary turbine pressurizer
  • Electric auxiliary turbine pressurizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The electric auxiliary booster motor 2 in this example adopts a DC brushless permanent magnet motor, which adopts a radial magnetic field structure and is installed on the outside of the compressor impeller 72, such as figure 1 , figure 2 shown.

[0042] The turbocharger includes a compressor 7, which has a compressor housing 71, in which a compressor impeller 72 is installed, and on the back side of the compressor impeller 72 are thrust positioning sleeves 73 and seals 74.

[0043]The auxiliary booster motor 2 includes a stator housing 23 , in which an air inlet 22 is axially processed. Air passes through the air inlet 22 into the air inlet of the compressor 7 and flows into the compressor impeller 72 . The stator 20 is installed in the stator casing 23 , and its stator windings 24 are arranged in symmetrical directions. The motor rotor 21 is connected to the rotor shaft 70 through the fastener 26 and the rotor positioning sleeve 25 . At the same time, the electric ...

Embodiment 2

[0045] In this example, if image 3 As shown, the auxiliary supercharging motor 2 is implemented with an axial magnetic field structure, installed between the compressor impeller 72 and the seal 74 , and the seal 74 is installed on the middle shell 9 .

[0046] The stator housing 23 of the auxiliary booster motor 2 is connected to the compressor housing 71, the seal 74 is connected to the intermediate housing 9, the disc stator 28 is installed on the stator housing 23, and the disc rotor 27 is connected to the rotor shaft through the thrust positioning sleeve 73. 70 connections. A compressor wheel 72 is also mounted on the rotor shaft 70 .

[0047] At the same time, the electric auxiliary booster motor 2 is connected with the auxiliary circuit; the compressor 7 is connected with the auxiliary circuit through the sensor group.

[0048] The auxiliary control circuit of the present invention is as Figure 4 As shown, it includes a central control unit 1 , an electronically con...

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Abstract

The present invention discloses one kind of electrically assisted turbocharger, and solves the problems of unmatching between the exhaustion of supercharger with waste gas driven turbine and the engine under all regime and 'turbine delay' effect. The electrically assisted turbocharger has simple structure, convenient operation, high reliability and other advantages. Its structure includes a turbocharger and an auxiliary supercharging motor, which is assembled together with the turbocharger, has rotor connected coaxially with the rotor in the turbocharger and is connected to the auxiliary control circuit.

Description

technical field [0001] The invention relates to an exhaust gas turbocharger, in particular to an electric auxiliary turbocharger. technical background [0002] The implementation forms of superchargers on internal combustion engines include mechanical, electric, direct, indirect, etc. Among them, the exhaust gas turbocharger has excellent comprehensive performance and has been widely used. [0003] The flow rate, efficiency, and pressure ratio of ordinary turbochargers match the engine within a certain range. At lower engine speeds, the exhaust gas has less energy, the turbine speed is lower, and the boost pressure is lower. This situation will lead to insufficient intake air, causing the engine's output power and emissions to be difficult to meet the requirements. Generally, the vehicle supercharger uses a smaller volute to increase the speed of the supercharger, and uses variable nozzle / section turbocharger technology to try to expand the performance of the low-speed sec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B39/02F02B39/16
Inventor 孙军
Owner 孙军
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