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US 10,209,014 B2Granted
Brazed heat exchanger
AssigneeModine Manufacturing Company
InventorsDaniel Kühbauch, Jürgen Zeitlinger
Life of this patent
Estimating the term…
Abstract
A brazed heat exchanger, having a block consisting of flat tubes and fins, having header tubes arranged at opposite ends of the flat tubes and having an additional tube, which is connected to one of the header tubes. To reduce brazing defects, provision is made for at least a significant part of an outer surface of the additional tube and/or of the header tubes to be of enlarged design.
Claims19
A brazed heat exchanger, particularly a condenser, comprising:
- a block including flat tubes, fins, and a first and a second header tube arranged at opposing ends of each of the flat tubes;
- a dryer cylinder arranged parallel to, and spaced apart from, one of the first and second header tubes, wherein at least a portion of an outer surface of the dryer cylinder is profiled to provide an enlarged outer surface, wherein the dryer cylinder is formed as an extrusion, portions of the extrusion being subsequently removed to define the first and second projection-type connections and the planar outer surface;
- a first and a second projection-type connection arranged on a straight line and integrally formed with the dryer cylinder, the first and second projection-type connections extending from a planar outer surface of the dryer cylinder across the spacing between the dryer cylinder and said one of the first and second headers;
- a first opening extending through the first projection-type connection to allow refrigerant to enter the dryer cylinder from said one of the first and second headers;
- and
- a second opening extending through the second projection-type connection to allow refrigerant to return to said one of the first and second headers from the dryer cylinder.
3 more elements
A brazed heat exchanger, particularly a condenser, comprising:
- a block including flat tubes, fins, and a first and a second header tube arranged at opposing ends of each of the flat tubes;
- a dryer cylinder arranged parallel to, and spaced apart from, one of the first and second header tubes, wherein at least a portion of an outer surface of the dryer cylinder is profiled to provide an enlarged outer surface, wherein the dryer cylinder is formed as an extrusion and the planar outer surface is formed by machining away material of the extrusion on either side of each of the first and the second projection-type connections;
- a first and a second projection-type connection arranged on a straight line and integrally formed with the dryer cylinder, the first and second projection-type connections extending from a planar outer surface of the dryer cylinder across the spacing between the dryer cylinder and said one of the first and second headers;
- a first opening extending through the first projection-type connection to allow refrigerant to enter the dryer cylinder from said one of the first and second headers;
- and
- a second opening extending through the second projection-type connection to allow refrigerant to return to said one of the first and second headers from the dryer cylinder.
3 more elements
Dependencies are inferred from the claim text.