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:
Jan. 05, 2010
Filed:
May. 11, 2004
Philippe Maupetit, Arbourse, FR;
Pierre Martinez, Marzy, FR;
Boualem Oudjedi, Nevers, FR;
Alfa Laval Corporate AB, Lund, SE;
Abstract
The invention relates to a spiral heat exchanger including a central cylinder () and at least two spiral sheets (). The sheets extend from the cylinder to form a first spiral-shaped flow channel () for a first medium and a second spiral-shaped flow channel () for a second medium. The cylinder forms an inner space within the cylinder. The cylinder includes a first opening () communicating with the first flow channel and a second opening () communicating with the second flow channel. A pipe () extends into the inner space of the cylinder. A first communication channel, communicating with the first flow channel via the first opening, is formed within the pipe. A second communication channel, communicating with the second flow channel via the second opening, is formed in the inner space outside the pipe.