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, 2012
Filed:
Nov. 22, 2006
Marco Dick Jager, The Hague, NL;
Marco Dick Jager, The Hague, NL;
Shell Oil Company, Houston, TX (US);
Abstract
Method and apparatus for cooling a stream in a heat exchanger against a refrigerant fluid being cycled in a refrigerant circuit. The cycling of the refrigerant fluid includes feeding a first refrigerant fluid into an axial compressor and compressing it to obtain a compressed first refrigerant fluid. The compressed first refrigerant fluid is then fed into a centrifugal compressor, with a second refrigerant fluid. The compressed first refrigerant fluid and the second refrigerant fluid are compressed in the centrifugal compressor, thereby obtaining a compressed refrigerant fluid mixture. The compressed refrigerant fluid mixture is cooled in a heat exchanger and subsequently separated into at least two streams. The at least two streams are evaporated at different pressure levels of a heat exchanger in heat exchanging contact with the stream to be cooled, and from the at least two evaporated streams the first and second refrigerant fluids are retrieved.