Front-Engine Gas Turbine for Extended Range Electric Vehicle
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Solution Overview
Problem
Existing front-engine extended range electric vehicles face challenges with load weight balance, controllability, and efficiency due to the large moment of inertia caused by traditional piston engines, which restrict battery capacity and overall vehicle performance.
Innovation Solution
A front-engine extended range electric passenger vehicle design utilizing a combustion gas turbine as the power source, with the engine arranged at the front axle on a symmetrical center line, featuring a turbo shaft engine, battery pack, electric generator, drive motors, storage tank, and independent regenerator, optimizing energy conversion, load distribution, and reducing emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a traditional piston type internal combustion engine is used as power source, then the engine can provide sufficient power, but the engine structure volume becomes huge and overall efficiency of the power systems is reduced
Solution Approach 1:
The patent replaces the traditional piston-type internal combustion engine with a combustion gas turbine system. This substitution fundamentally changes the mechanical approach from reciprocating piston motion to continuous rotary combustion and expansion, achieving higher power density with significantly reduced engine volume while maintaining sufficient power output for the extended range electric vehicle
Solution Approach 2:
The patent changes the thermodynamic parameters and operating characteristics of the power system by using a gas turbine instead of a piston engine. The gas turbine operates on a continuous combustion cycle with different pressure, temperature, and flow parameters compared to the intermittent cycle of a piston engine, enabling more compact engine design with equivalent or superior power output
2Adaptability or versatility
If the engine is placed in the front, then the vehicle can be designed like an ordinary saloon car, but the moment of inertia becomes large and controllability becomes poor
Solution Approach 1:
The patent replaces the traditional front-mounted piston engine with a combustion gas turbine system that has a longitudinally arranged output shaft. This substitution reduces the moment of inertia and improves controllability while maintaining the front-engine layout and ordinary saloon car design characteristics
3Adaptability or versatility
If the engine is placed in the front, then the vehicle can be designed like an ordinary saloon car, but the arranging space of battery pack becomes much smaller
Solution Approach 1:
The patent replaces the traditional piston engine with a combustion gas turbine system, which has a more compact structure and different spatial requirements. This substitution creates additional arranging space for the battery pack in the middle part of the vehicle frame, enabling larger battery capacity while maintaining the front-engine layout and ordinary saloon car design
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design achieves balanced load weight, improved controllability, reduced emissions, increased battery capacity, and enhanced efficiency with a miniature combustion gas turbine providing high power density and thermal efficiency, while eliminating the need for an exhaust gas treatment system, resulting in improved environmental performance and longer endurance mileage.
Implementation Method 1
combustion gas turbine to generate electricity for the extended range electric vehicle
Implementation Method 2
combustion gas turbine... high effective energy conversion, balanced load weight
Implementation Method 3
an electric generator, drive motors... the rotor of the electric generator and the output shaft 2-1 of the turbo shaft engine are connected to each other
Implementation Method 4
the drive motors drive front and rear wheels to rotate
Implementation Method 5
the independent regenerator is located below the turbo shaft engine, and is used to preheat inlet air of the turbo shaft engine using exhaust gas discharged therefrom
Data Source
AI summary
The present disclosure provides a front-engine extended range electric passenger vehicle, including a turbo shaft engine (2), a battery pack (3), an electric generator (4), drive motors (6), a storage tank (9) and an independent regenerator (12), wherein the turbo shaft engine (2) is arranged on frames above a front axle, an axis of an output shaft of the turbo shaft engine (2) is located on a symmetry plane of the vehicle body, and the independent regenerator (12) is located below the turbo shaft engine (2) and is used to preheat inlet air of the turbo shaft engine (2) using exhaust gas discharged therefrom. A combustion gas turbine is adopted in the extended range electric passenger vehicle as power source and arranged at a location at the front axle of the vehicle on a symmetrical center line thereof, an output shaft of the combustion gas turbine is longitudinally arranged, which has advantages of high effective energy conversion, balanced load weight between front and rear wheels as well as left and right wheels, good operating performance and long endurance mileage.