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. 18, 2014
Filed:
Apr. 04, 2008
Rolf Christensen, Veberöd, SE;
Fredrik Andreasson, Södra Sandby, SE;
Rolf Bermhult, Lund, SE;
Håkan Larsson, Kävlinge, SE;
Magnus Svensson, Marieholm, SE;
Rolf Christensen, Veberöd, SE;
Fredrik Andreasson, Södra Sandby, SE;
Rolf Bermhult, Lund, SE;
Håkan Larsson, Kävlinge, SE;
Magnus Svensson, Marieholm, SE;
Alfa Laval Corporate AB, Lund, SE;
Abstract
A plate heat exchanger including a plurality of heat exchanger plates joined to each other. Each plate has a heat transfer area, a first porthole area, a second porthole area, a third porthole area and a fourth porthole area. Each porthole area surrounds a porthole having a porthole edge. Each porthole area comprises an annular flat area, a set of inner portions on the annular flat area along the porthole edge, and a set of outer portions along the annular flat area at a distance from the inner portions. The outer portions of the first porthole area have a first relative peripheral position with respect to the inner portions. The outer portions of the fourth porthole area have a second relative peripheral position with respect to the inner portions. The first relative peripheral position includes a peripheral displacement in relation to the second relative peripheral position.