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:
Oct. 31, 1989
Filed:
Jul. 28, 1988
Manabu Kitamoto, Fuji, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An outdoor unit includes at least two variable-capacity compressors. Each of a plurality of indoor units includes a detector for detecting an air conditioning load of the indoor heat exchanger to output respective required capacity data. A distribution unit couples the outdoor unit in parallel with the indoor units so as to constitute each refrigerant cycle, and has a plurality of refrigerant flow controllers. A first controller supplies a control command based on the respective required capacity data to the refrigerant flow controllers, and outputs total sum data of the respective required capacity data. A second controllers supplies a single operation command with a predetermined capacity by one of the two compressors or a parallel operation command with predetermined capacities by both the two compressors to the outdoor unit whether the total sum data is smaller or larger than a predetermined value. A third controllers supplies a command for temporarily decreasing the predetermined capacity by one of the two compressors to the outdoor unit when the single operation command is switched to the parallel operation command, and then, supplies a command for starting the other of the two compressors to the outdoor unit.