Electrically assisted turbocharger

Abstract

The invention discloses an electrically assisted turbocharger. The electrically assisted turbocharger comprises a motor, an air compressor, a turbine and a heat dissipation assembly, wherein the air compressor is located between the motor and the turbine, one end of the air compressor is connected with the motor, and the other end of the air compressor is connected with the turbine; and the heat dissipation assembly comprises a heat dissipation part, a heat dissipation rod and heat dissipation fins, the heat dissipation part is connected with the motor, the heat dissipation rod is installed in the air compressor, and the heat dissipation fins are installed between the air compressor and the turbine. The electrically assisted turbocharger has a good heat dissipation effect in practical application, and is light in overall weight; during operation, the starting effect of the electrically assisted turbocharger is faster than those of most products on the market; the service life is prolonged; and the electrically assisted turbocharger is convenient to disassemble in structure and conducive to maintenance.

Description

technical field [0001] The invention relates to the technical field of turbochargers, in particular to an electrically assisted turbocharger. Background technique [0002] The turbocharger is actually a kind of air compressor, which increases the air intake by compressing the air. It uses the inertial momentum of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller, which is fed by the impeller. The air sent by the air filter pipe makes it supercharged and enters the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase synchronously, and the impeller compresses more air into the cylinder, and the pressure and density of the air increase. More fuel can be burned, and the output power of the engine can be increased by increasing the amount of fuel and adjusting the engine speed accordingly. [0003] In the prior art, since the electric-assis...

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Problems solved by technology

[0003] In the prior art, since the electric-assisted turbocharger is usually connected with the compressor and the turbine, and the heat in the exhaust gas is very high, the heat of the exhaust gas heats the coaxially connected compressor and turbine, resulting in a large amount of heat along the thermal conductivity. The rotating shaft of the compressor is transmitted to the compressor, which causes the temperature of the electric drive mechanism installed on the compressor to be too high, which affects the normal operation of the electric drive mechanism, and the heat dissipation performance of the motor of the existing electric auxiliary turbocharger is not strong;

[0004] In the prior art, there is a technical solution to solve the heat dissipation problem of the motor by using the motor bias, but the motor bias will cause the overall coaxiality of the turbocharger to be affected, so there is a need for an electrically assisted turbocharger that solves the above problems

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