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:
Jun. 04, 1991
Filed:
Dec. 20, 1989
Sherwood G Talbert, Columbus, OH (US);
Frank E Jakob, Worthington, OH (US);
Gas Research Institute, Chicago, IL (US);
Abstract
A heat pump system selectively operable in cooling and heating modes of operation and having a combustion prime mover which produces refrigerant vapor compression and which produces combustion heat in greater amounts than usable energy for motive power, provided with a first heat exchanger that evaporates compressed refrigerant in the system heating mode of operation and with a first radiator means which transfers excess prime mover heat to a working fluid, and with a working fluid distribution means selectively operable to proportionately flow the heated working fluid to the first radiator in convective heat exchange relations to the first heat exchanger means, in the system heating mode of operation, to provide defrost capabilities and especially to improve heat pumping capacity at low ambient temperatures.