Patent ID: 8893488

Claim:
A power train system, comprising: a compressed air or gas supply; an accelerator or power switch; a compressed air or gas engine with at least one internal chamber configured for extracting energy from compressed air or gas, said engine operating in a first mode when the accelerator or power switch is engaged, and a second mode when the accelerator or power switch is not engaged, wherein in said first mode the compressed air engine receives said compressed air or gas from the compressed air or gas supply, said compressed air or gas subsequently expanding inside said chamber during an expanding power stroke and producing power via an output shaft, and further wherein in said second mode the chamber in the compressed air or gas engine receives low or ambient pressure air or gas, said low or ambient pressure air or gas subsequently being compressed until reaching a threshold pressure sufficient to cause a compression valve to open and deliver the compressed air or gas to a storage tank or to the compressed air or gas supply.