US 12,215,937 B2
Heat exchanger plate, and a plate heat exchanger
Jörgen Gustafsson, Staffanstorp (SE)
Assigned to ALFA LAVAL CORPORATE AB, Lund (SE)
Appl. No. 17/593,978
Filed by ALFA LAVAL CORPORATE AB, Lund (SE)
PCT Filed Mar. 11, 2020, PCT No. PCT/EP2020/056479
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/200678, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 1950410-9 (SE), filed on Apr. 3, 2019.
Prior Publication US 2022/0170703 A1, Jun. 2, 2022
Int. Cl. F28F 3/04 (2006.01); F28D 9/00 (2006.01); F28F 3/08 (2006.01); F28F 13/08 (2006.01)
CPC F28F 3/046 (2013.01) [F28D 9/005 (2013.01); F28F 3/08 (2013.01); F28F 13/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat exchanger plate configured to be comprised by a plate heat exchanger,
the heat exchanger plate having a quadrilateral shape with two opposite parallel primary sides and two opposite parallel secondary sides, and a longitudinal central axis being parallel with the primary sides and with an extension plane of the heat exchanger plate, the heat exchanger plate comprising:
a heat exchanger area having a corrugation of ridges and valleys, which have an inclination in relation to the longitudinal central axis, wherein the corrugation forms a theta value related to the inclination,
four porthole areas each located at a respective corner of the heat exchanger plate and each comprising a respective porthole extending through the heat exchanger plate, and
an edge area extending around and adjoining the heat exchanger area and the porthole areas,
wherein the heat exchanger area comprises a main area and a local part area extending along one of the primary sides and adjoining the edge area and one of the porthole areas,
wherein the valleys of the local part area are tapering in a narrowing manner towards the longitudinal central axis.