| 摘要 |
A basic air conditioning/refrigeration system charged (filled) with, typically, Nitrogen gas six to ten atmospheres with a specific heat of gas equal to 0.022 B.T.U. per degree F. change per cubic foot per atmosphere when in operation. The system may be run so the gas circulates through the system at 15.5 A. C.F.M., yielding a shaft output of one horse power out of a cooling gas expansion motor. Other refrigerant gases useable in place of Nitrogen are Argon, Helium, Hydrogen, dry air and a forming gas mixture of Nitrogen and Hydrogen in typically an 80% to 20% ratio (Hydrogen would probably not exceed 30% in a forming gas mixture) with all of these remaining in the gaseous state throughout the system as opposed to a freon charged system where freon is expanded from the liquid to gaseous state and compressed back to the liquid state within the system. The gas expansion motor, that may be a multi-cylinder-piston wobble plate motor, has a feed and exhaust valve feeding passageway and cylinder space at piston top dead center with a volumetric ratio of one to a figure in the range of seven to twelve and even on to twenty four times at the bottom of the individual piston stroke. The motor valve is lead set in the 20 DEG to 30 DEG approximate range to initiate feed before piston top dead center and extends through an inlet port of 100 DEG with exhaust valve porting initiated approxiamtely 65 DEG of valve rotation later and then extended through approximately 150 DEG of the rotating value. Output passages and line are considerably larger than freon system pump to expander fluid lines. A system using the gas expander motor includes a cold air flow exchanger, a compressor that has 20 to 30% more displacement than the gas motor and a hot air flow exchanger, and a motor driving both the gas expansion motor and the compressor.
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