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:
Nov. 12, 2013
Filed:
Jun. 27, 2008
Arne Jakobsen, Trondheim, NO;
Petter Neksa, Trondheim, NO;
Sergio Girotto, Paese, IT;
Havard Rekstad, Trondheim, NO;
Geir Skaugen, Trondheim, NO;
Arne Jakobsen, Trondheim, NO;
Petter Neksa, Trondheim, NO;
Sergio Girotto, Paese, IT;
Havard Rekstad, Trondheim, NO;
Geir Skaugen, Trondheim, NO;
Sinvent AS, Trondheim, NO;
Abstract
A method for operating a closed circuit vapour compression refrigeration system is disclosed. The system may operate with supercritical pressure on a high pressure side, and includes at least one compressor, at least one heat rejector, at least two in parallel connected heat absorbers, at least one variable expansion means up flow of each heat absorber and at least one control unit for controlling the variable expansion means, connected to a set of sensors. The flow rate of the refrigerant through each of the variable expansion means, is controlled by the control unit, coordinating the flow of refrigerant through each of the variable expansion means to maintain a control parameter within a set range. Any surplus charge resulting from the control is buffered on a low pressure side of the system. Furthermore a refrigeration system based on a closed vapour compression circuit is described.