Vuilleumier cycle thermal compressor air conditioner system
AssigneeThe United States of America as represented by the Secretary of the Army
InventorCharles M. Hanson
Life of this patent
Estimating the term…
Abstract
A system that samples and uses heat from a hot exhaust as a source of heat o the hot side of a Vuilleumier compressor is driven by some external rotational input means to overcome the friction of a regenerator matrix containing hot displacer and cause reciprocal movement of the hot displacer. The Vuilleumier compressor produces alternating pressure waves that are applied to a cold finger array of free-displacer refrigerators wherein air is passed over the cold ends of each of the cold fingers to cool or refrigerate some desired area and heat is removed from the hot ends of the cold fingers and exhausted in another direction.
Claims4
A Vuilleumier cycle thermal compressor air conditioner system comprising:
- a hot exhaust heat source and heat exchanger in intimate contact with the hot volume of a Vuilleumier compressor hot cylinder,
- a rotational input device connected to a crankshaft in a crankcase colume that is on the opposite side of a regenerator matrix displacer from said hot volume, wherein a displacer rod is connected between said displacer and an outer point on said crankshaft to impart reciprocal motion to said regenerator matrix displacer and produce alternate high and low pressure waves corresponding to alternate hot and cold temperatures in said crankcase volume;
- and
- a cold finger array comprised of a plurality of free-displacer regenerator matrix refrigerators that are in communication with and are driven by said alternate high and low pressure waves, said refrigerators having a cold volume end position in a cold air duct and an ambient volume that is in direct communication with said pressure waves and a pneumatic volume positioned in a hot air duct wherein a duct fan vents air through said hot and cold air ducts to selectively air condition an enclosed space.
A Vuilleumier cycle thermal compressor air conditioner system comprising:
- a heat source and a heat exchanger;
- a Vuilleumier compressor having a hot cylinder comprised of a hot volume in intimate contact with said heat source through said heat exchanger, a crankcase volume, a hot displacer comprised of a regenerator matrix having a plurality of hot volume end ports and a plurality of crankcase volume end ports therein and a displacer rod connected between said hot displacer and an outer point of a crankshaft in said crankcase volume and a rotational input connected to said crankshaft for imparting reciprocal movement to said hot displacer to produce pressure waves in said crankcase volume;
- a hollow pressure line in communication at one end to said crankcase volume;
- a cold finger array comprised of a plurality of free-displacer regenerator matrix refrigerators wherein each of said refrigerators has a cold volume at a cold end and an ambient volume in communication with a second end of said hollow pressure line and a pneumatic volume separated by a pneumatic piston from said ambient volume at a hot end, said pneumatic piston is rigidly connected to one end of said free-displacer regenerator matrix through said ambient volume, wherein said hot end and cold end are insulated from each other and are respectively in a hot air duct and a cold air duct in which said pressure waves alternately reciprocate said free-displacer regenerator matrix for cooling said cold volume and said cold end;
- and
- a duct fan for venting air over the plurality of the hot and cold ends for selectively supplying hot or cold air conditioned air to an enclosed space.
Dependencies are inferred from the claim text.