Patent · US Active

Plate heat exchanger

US8596343B2 · kind B2 · utility

5Cited by

3References

18Claims

0Family size

Assignee

ALFA LAVAL CORPORATE AB · SE

Inventors

Rolf Christensen · Stenungsund, SE
Fredrik Andreasson · Nanhu, CN
Rolf Bermhult · Lund, SE
Håkan Larsson · Halmstad, SE
Magnus Svensson · Gothenburg, SE

Key dates

Filing date	Apr 4, 2008
Grant date	Dec 3, 2013
Priority date	—
Expiry date	Sep 14, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F2275/04
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A plate heat exchanger including a plurality of heat exchanger plates (1), a first end plate and a second end plate. The plates are permanently joined to each other by means of a braze material. Each heat exchanger plate has a heat transfer area and a plurality of porthole areas surrounding a respective porthole. The plate heat exchanger including a plurality of having a bottom surface turned towards the heat exchanger plates. At least one of the flat elements including an annular protrusion extending from the bottom surface and tightly abutting one of the porthole areas of the outermost heat exchanger plate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.