A twin-turbo micro-combustion engine range extender suitable for electric vehicles
A technology for electric vehicles and turbines, used in electric vehicles, motor vehicles, hybrid vehicles, etc., can solve the problems of large volume and low power density of range extenders, achieve high power density, improve life and reliability, and light weight Effect
Active Publication Date: 2022-03-08
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
[0003] Aiming at the above problems, the present invention proposes a twin-turbo micro-combustion engine range extender suitable for electric vehicles, which can solve the problems of large volume and low power density of existing range extenders
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[0017] Such as figure 1 and figure 2 Shown is the twin-turbo micro-combustion engine range extender suitable for electric vehicles disclosed by the present invention, including: centrifugal compressor 1, regenerator 2, combustion chamber 3, primary turbine 4, secondary turbine 5, high-speed power generation Engine 6, drive motor 7, power battery 8, oil supply system 9, ignition device 10, starter motor 11; the centrifugal compressor 1 is coaxially driven by the primary turbine 4, preferably, the centrifugal compressor The pressure ratio is 4-7; the first-stage turbine 4 is driven by the gas generated by the combustion chamber 3; the second-stage turbine 5 is arranged in series with the first-stage turbine 4, preferably, the first-stage turbine is a mixed flow type or a radial flow type The turbine has an expansion ratio of 2 to 4; the upper limit of the inlet gas temperature of the first-stage turbine is 950 to 1050°C according to the material of the turbine impeller. The t...
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The invention discloses a twin-turbine micro-combustion engine range extender suitable for electric vehicles, including: a centrifugal compressor, a regenerator, a combustion chamber, a primary turbine, a secondary turbine, a high-speed generator, a drive motor, a power battery, Oil supply system, ignition device and starter motor; the centrifugal compressor is coaxially driven by the first-stage turbine; the first-stage turbine is driven by the gas generated in the combustion chamber; the second-stage turbine is connected in series with the first-stage turbine; The heater transfers its own waste heat to the boosted air generated by the centrifugal compressor; the high-speed generator is driven by the second-stage turbine; the driving motor is powered by the high-speed generator and / or the power battery; the power battery can accept the regenerative braking feedback of the driving motor Electric energy, and can be charged by a high-speed generator when the battery is low; the power battery can also be charged by an external common AC power line. The range extender has the advantages of small size, light weight, and high power density, and improves the battery life of electric vehicles.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a twin-turbo micro-combustion engine range extender suitable for electric vehicles. Background technique [0002] In recent years, pure electric vehicles have developed rapidly in China as motor vehicle emission control regulations have become more stringent. However, the shortcomings of its short cruising range and incomplete related supporting facilities have also been highlighted. The fundamental reason is that pure electric vehicles can only be charged after parking or entering the station. The range extender is an on-board auxiliary power generation device. When the on-board rechargeable power battery cannot meet the mileage requirements, the starting range extender can provide electric energy for the vehicle power system. Therefore, the range extender is currently an optional solution to solve the problems of pure electric vehicles such as short cruising range, l...
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IPC IPC(8): B60L50/62
CPCB60L50/62Y02T10/62Y02T10/70
Inventor 邢辉陈化李超马超王凤利
Owner DALIAN MARITIME UNIVERSITY