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:
May. 22, 1990
Filed:
Feb. 06, 1989
Manabu Kitamoto, Fuji, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An outdoor unit has at least a variable-capability compressor and an outdoor heat exchanger coupled thereto. A plurality of indoor units each have at least an indoor heat exchanger and a section for outputting demand-capability data according to an air-conditioning load of the indoor heat exchanger. A distributing unit serves to couple the outdoor unit and the plurality of indoor units in parallel to form respective refrigeration cycles, and has a plurality of refrigerant flow controllers corresponding to the respective refrigeration cycles. A first controller sends refrigerant flow control commands associated with the demand-capability data of the indoor units to the refrigerant flow controllers of the distributing unit and outputs sum data of the demand-capability data. A second controller sends a capacity-change control command to the variable-capability compressor of the outdoor unit, in accordance with the sum data from the first controller. A refrigerant super-heat detector detects a degree of refrigerant super-heat in each indoor unit. A third controller sends refrigerant flow compensation commands, associated with a detection output of the refrigerant super-heat detector, to the respective refrigerant flow controllers of the distributing unit.