Abstract
This paper investigates the feasibility of applying a compressed air powertrain to mine rescue vehicles, which require strict explosion-proof and flame-proof characteristics. Based on both simulation and preliminary tests of a single-cylinder air-powered engine prototype, the concept of compressed air powertrain for a rescue vehicle is proposed. Compared to conventional internal combustion engines, the exhaust emissions of the proposed air-powered engine concept are innoxious and its gas temperature is very low, which guarantees the safety and explosion-proof requirements. Preliminary selection and matching of both a transmission and final gear reduction are carried out, considering vehicle traction and air consumption performance characteristics. Simulation results show that given properly designed drivetrain gear ratios, the air-powered rescue vehicle can reach a speed of 7 km/h with gear 1 on a 30% slope road. Compared to current products, its feasibility in driving mileage and traction performance are further confirmed.
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