Rotor booster for motorcycles

Abstract

The invention relates to a rotor booster applied to various motorcycles. The rotor booster comprises a front casing, a middle casing and a back casing, wherein a bearing plate is mounted between the front casing and the middle casing; a gasket is mounted between the middle casing and the back casing; the front casing and the bearing plate jointly constitute a closed gear chamber; the bearing plate, the middle casing and the back casing jointly constitute a closed rotor chamber; an input shaft, a force transmitting hub, a driving gear and a driven gear are mounted in the gear chamber; two spiral compressor rotors are mounted in the rotor chamber. The rotor booster is small in overall size, light in weight, capable of being mounted without greatly changing frame structures of the motorcycles, capable of producing the boosting effect after mounting when an engine operates at the low rotation speed, quick in response, simple in structure, long in service life, capable of effectively increasing output torque and power of the engine at low and medium speeds and improving the emission performance of the engine and applicable to various motorcycles with displacement larger than or equal to 125 ml.

Description

technical field [0001] The invention relates to a motorcycle rotor supercharger, in particular to a mechanical supercharger. Background technique [0002] The current supercharging technology of internal combustion engines mainly realizes supercharging by adding an exhaust gas turbocharger or a supercharger. The supercharger pre-compresses the air that is about to enter the combustion chamber of the internal combustion engine to increase the density of the intake air and increase the intake air volume, so that the mixed fuel in the cylinder can be burned more fully, thereby effectively increasing the power of the internal combustion engine. The purpose of reducing torque and reducing fuel consumption, improving vehicle acceleration response performance and emission performance, this technology has been widely used in various types of automobiles and construction machinery. The exhaust gas turbocharger mainly uses the high-temperature exhaust gas discharged from the internal...

AI Technical Summary

Problems solved by technology

The exhaust gas turbocharger mainly uses the high-temperature exhaust gas discharged from the internal combustion engine to drive the turbine to rotate, thereby driving the coaxially connected compressor wheel to rotate, and pre-compressing the intake air, but the intake air compressed by this supercharger The temperature is high, and it needs to be cooled, and this kind of supercharger has high requirements for the lubrication system of diesel locomotives; the supercharger is mainly composed of a housing and two rotors that are meshed with each other The crankshaft pulley of the internal combustion engine is used to drive the rotation, and the intake air is pre-compressed. The temperature of the intake air compressed by this supercharger is not high, and the structure is relatively simple, and the requirements for the lubrication system are also low, but its volume larger

[0003] These two types of superchargers are not very suitable for motorcycles, because the engine structure of motorcycles is relatively special, and the installation position of the exhaust pipe is far from the intake pipe , and there is a certain height difference, which brings inconvenience to the installation, and the motorcycle is often operated at a low-to-medium speed, and the exhaust gas emitted by the engine is small and intermittent, which determines the high-temperature exhaust gas A turbocharger as a power source is not suitable for all categories of motorcycles

However, the volume of the supercharger is relatively large, and the two-lobed or three-lobed straight-blade or helical rotor is used to compress the air. In fact, it does not achieve the effect of compressing the air. It can only be said that it is a blower, and there are Low volumetric efficiency, gas transmission pressure pulsation and large noise can only be used on a very small number of large-displacement motorcycles, and cannot be popularized and used in the true sense

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