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:
Feb. 22, 1983
Filed:
Mar. 10, 1981
Isao Takeshita, Neyagawa, JP;
Shiro Hozumi, Sakai, JP;
Matsushita Electric Industrial Company, Kadoma, JP;
Abstract
An absorption type refrigeration system includes a main flow circuit, a first and a second auxiliary flow circuit. The main flow circuit includes a refrigerant generator containing a solution of evaporable refrigerant in a less evaporable solvent which is heated by solar energy. Pressurized vapor phase refrigerant is supplied to a main condenser and thence to a main evaporator and back to an absorber in which a low refrigerant content solution from the generator is converted to a high refrigerant content solution which is pumped to the generator for recirculation. An electrically driven compressor supplies vapor phase refrigerant through the first auxiliary flow circuit including a condenser, a diaphragm-operated expansion valve, and a first auxiliary evaporator which is arranged to cool the main condenser. The expansion valve is responsive to the vapor pressure of the generator to regulate the pressure of the auxiliary evaporator in a predetermined relationship with the pressure of the main condenser so that the pressure at which refrigerant is evaporated in the first auxiliary evaporator is lower than the pressure at which refrigerant is condensed in the main condenser. The expansion valve is closed when the generator pressure is below the evaporation pressure of the main circuit to direct refrigerant from the compressor to a second auxiliary evaporator.