Heat exchanger for a boiler, and heat-exchanger tube
AssigneeCosmogas S.R.L.
InventorAlberto Alessandrini
Life of this patent
Estimating the term…
Abstract
A heat exchanger includes a plurality of tubes arranged in a juxtaposed configuration, and at least one first manifold member on the outside of the tubes. Each tube is wound to define a planar spiral, having a plurality of co-planar turns, and has an end portion, which extends starting from the inside of the corresponding planar spiral towards the outside thereof. The end portion is superimposed on the co-planar turns, in a position corresponding to a major face of the planar spiral, for connection to the manifold member. tube has a transverse depression defined in the co-planar turns at the major face of the planar spiral, and the transverse depression at least partially receives a a corresponding part of the end portion.
Claims20
A heat exchanger, comprising:
- a tube assembly, which includes a plurality of tubes arranged in a side by side configuration,
- at least one first manifold member, which is outside the tube assembly,
- wherein each tube of the plurality of tubes is wound to define a planar spiral having at least one turn,
- wherein at least one first tube, or each tube of the plurality of tubes, has a first end portion, which extends starting from the inside of the corresponding planar spiral towards the outside thereof, the first end portion being at least partially superimposed on the at least one turn, in a position corresponding to a major face of the planar spiral, for connection to the at least one first manifold member,
- wherein the at least one first tube, or each tube of the plurality of tubes, has at least one transverse depression defined in the at least one turn,
- and wherein the at least one transverse depression at least partially receives a corresponding part of the first end portion.
A heat-exchanger tube,
- wherein the heat-exchanger tube is wound so as to define a planar spiral having at least one turn,
- wherein the tube has a first end portion, which extends starting from the inside of the corresponding planar spiral towards the outside thereof, the first end portion being at least partially superimposed on the at least one turn, in a position corresponding to a major face of the planar spiral,
- wherein the tube has at least one transverse depression defined in the at least one turn, in the at least one transverse depression being at least partially received a corresponding part of the first end portion.
Dependencies are inferred from the claim text.