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US 6,182,746 B2Granted
Plate-type heat exchanger
AssigneeBehr GmbH & Co.
InventorManfred Wiese
Life of this patent
Estimating the term…
Abstract
In connection with a plate-type heat exchanger having several stacked, tub-shaped heat exchanger plates, each with a circumferential, beveled border, the borders of these heat exchanger plates being embodied to be curved and bent outward. This results in improved brazing of the heat exchanger plates with each other.
Claims11
A plate-type heat exchanger, comprising:
- at least two stacked tub-shaped heat exchanger plates, each tub-shaped heat exchanger plate having:
- a plate bottom;
- a circumferential, beveled border;
- and
- inlet and outlet passages for fluid passage, wherein
- said plate bottom of each tub-shaped heat exchanger plate includes a transition, without a step, into its associated circumferential beveled border;
- said circumferential, beveled border of each tub-shaped heat exchanger plate has one of a continuous and discontinuous curvature, with the curvature directed outwardly from the tub-shaped heat exchanger plate;
- and
- said circumferential, beveled border of adjoining tub-shaped heat exchanger plates having joined surfaces which are connected to each other by brazing along their curvature, such that a brazed fillet is formed between and contacts curved surfaces of facing surface portions of adjacent plates.
6 more elements
Dependencies are inferred from the claim text.