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US 10,590,816 B2Granted
Rolled fin spiral EGR cooler
AssigneeHanon Systems
InventorsCarsten Ohrem, Peter Diehl, Petr Sispera
Life of this patent
Estimating the term…
Abstract
A coiling heat exchanger, characterized by a heat exchanger spiral consisting of a liquid shield with fins, whereby neighboring coils of the spiral of the liquid shield are spaced apart from one another by the fins and connected to one another in a heat exchanging manner and that the liquid shield is perfused by liquid, whereby gas flows between the neighboring coils of the spiral of the liquid shield along the coiling axis.
Claims10
A coiling heat exchanger comprising:
- a heat exchanger spiral further comprising:
- a liquid shield with fins, whereby neighboring coils of a spiral of the liquid shield are spaced apart by the fins and connected in a heat exchanging manner, wherein the liquid shield is perfused by a liquid, and wherein a gas flows between the neighboring coils of the spiral of the liquid shield along an axis of the coils;
- and
- a sealing cap sealing an area of a central origin of the spiral not including the fins, the sealing cap preventing a short circuit flow through the area of the central origin.
1 more element
A method for manufacture of a coiling heat exchanger comprising steps of:
- coiling a rectangular liquid shield around a first side in a roll-up direction along the first side, wherein the first side of the liquid shield lays in a bending plane and a second side of the liquid shield lays beyond the bending plane, and the second side of the liquid shield is elongated and a reserve length of a pre-punched area is released by the coiling step;
- and
- providing a sealing cap sealing an area of a central origin of a heat exchanger spiral created during the coiling step, the sealing cap preventing a short circuit flow through the area of the central origin of the coiling heat exchanger.
Dependencies are inferred from the claim text.