The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 1984
Filed:
Jun. 14, 1982
Warren Rice, Tempe, AZ (US);
Craig Hosterman, Scottsdale, AZ (US);
Natural Energy Systems, Tempe, AZ (US);
Abstract
A gaseous refrigerant fluid is entrained within a down pipe of a closed loop liquid carrier flow circuit to compress isothermally the refrigerant fluid in a gaseous state to a near liquid state. A separation chamber at the lower extremity of the down pipe separates the refrigerant from the carrier and the carrier is drawn off. The carrier is conveyed upwardly through a return pipe and by a pump to a further pipe for reintroduction to the down pipe at the upper end thereof. The separated refrigerant fluid is further compressed but without changing its state by a mechanical compresser of small compression ratio and is cooled in a heat exchanger within the carrier return pipe, which cooling converts it to a liquid state. Thereafter, the refrigerant fluid is pumped by a liquid refrigerant pump upwardly through a return pipe and through an expansion valve. The refrigerant fluid, converted to a quality mixture of vapor and liquid by the expansion valve, flows through an evaporator to cool a medium, such as air, passing therethrough. The refrigerant fluid, flowing from the evaporator and in a gaseous state, is introduced to the upper end of the down pipe for re-entrainment in the carrier.