Compression/expansion process that allows temperature to vary independent of pressure

摘要: Systems and methods are described herein to operate an air compression and/or expansion system in its most efficient regime, at a desired efficiency, achieve pressure ratio independent of discharge temperature, with little no impact on thermal efficiency. For example, systems provided for controlling operating hydraulic pumps/motors used within hydraulically actuated device/system, such as, gas energy system, continuously, substantially intermittently, or varied throughout cycle stroke the any temperature profile. Such can input also ratio, without altering structural components device system.