Back to results
US 5,211,222 AGranted
Heat exchanger
AssigneeSanden Corporation
InventorToshiharu Shinmura
Life of this patent
Estimating the term…
Abstract
A laminated type evaporator for an automotive air conditioning refrigerant circuit is disclosed. The evaporator includes a plurality of tube units having a pair of tray-shaped plates. A pair of conduits for distributing the refrigerant to the interior region of each of the tube units and for receiving the refrigerant from the interior region of each of the tube units are connected to the top surface of the tube units. Communication between the plurality of tube units is obtained through separately formed conduits, thereby obviating the need to form an internal passageway during the formation of the tray-shaped plates and thus simplifying the manufacturing process of the evaporator.
Claims14
A heat exchanger comprising:
- a plurality of laminated tube units, each of said tube units including a pair of plates joined together to define therebetween a fluid passageway and at least one generally tubular opening projecting upwards from a top surface of said pair of plates and linked in fluid communication with said fluid passageway;
- and
- at least one conduit separately formed and disposed on an upper surface of said plurality of laminated tube units, said at least one conduit including a plurality of equiinterval slots in the bottom surface thereof;
- wherein said at least one conduit is positioned on said plurality of tube units such that said at least one generally tubular opening is received in one of said equiinterval slots and fluid communication between said plurality of tube units is thereby obtained through said at least one conduit;
- and
- wherein each of said pair of plates includes a shallow depression defined therein, a flange extending about the periphery thereof, and a wall disposed at an intermediate location therein and extending a majority of the length of said plate, said wall thereby defining a left side and a right side of said plate.
3 more elements
A heat exchanger comprising:
- a plurality of laminated tube units, each of said tube units including a pair of plates joined together to define therebetween a fluid passageway and at least one tapered hollow connecting portion projecting upwards from a top surface of said pair of plates and linked in fluid communication with said fluid passageway;
- and
- at least one conduit separately formed and disposed on an upper surface of said plurality of laminated tube units, said at least one conduit including a plurality of equiinterval slots in the bottom surface thereof;
- wherein said at least one conduit is positioned on said plurality of tube units such that said hollow connecting portion is received in one of said equiinterval slots and fluid communication between said plurality of tube units is thereby obtained through said at least one conduit.
1 more element
A heat exchanger comprising:
- a plurality of laminated tube units, each of said tube units including a pair of plates joined together to define therebetween a fluid passageway and at least one tapered hollow connecting portion projecting upwards from a top surface of said pair of plates and linked in fluid communication with said passageway;
- and
- a pair of cylindrical pipes having two closed ends and disposed on an upper surface of said plurality of laminated tube units, said cylindrical pipes each including a plurality of equiinterval slots in the bottom surface thereof, each of said pipes having two closed ends and positioned in series on the upper surface of said plurality of laminated tube units;
- wherein said pipes are positioned on said plurality of tube units such that said hollow connecting portion is received in one of said equiinterval slots and fluid communication between said plurality of tube units is thereby obtained through said pipes.
1 more element
A heat exchanger comprising:
- a plurality of laminated tube units, each of said tube units including a pair of plates joined together to define therebetween a fluid passageway and at least one tapered hollow connecting portion projecting upwards from a top surface of said pair of plates and linked in fluid communication with said fluid passageway;
- and
- a pair of generally rectangular pipes having two closed ends separately formed and disposed on an upper surface of said plurality of laminated tube units, said pair of generally rectangular pipes including a plurality of equiinterval slots in the bottom surface thereof;
- wherein said pipes are positioned on said plurality of tube units such that said at least one connecting portion is received in one of said equiinterval slots and fluid communication between said plurality of tube units is thereby obtained through said pipes.
1 more element
A heat exchanger comprising:
- a plurality of laminated tube units, each of said tube units including a pair of plates joined together to define therebetween a fluid passageway and at least one tapered hollow connecting portion projecting upwards from the top surface of said pair of plates and linked in fluid communication with said fluid passageway;
- and
- a generally rectangular structure having an interior region that is divided into a first rectangular passage and a second rectangular passage by a dividing wall extending the length thereof separately formed and disposed on an upper surface of said plurality of said laminated tube units, said rectangular structure including a plurality of equiinterval slots in the bottom surface thereof;
- wherein said rectangular structure is positioned on said plurality of tube units such that said at least one hollow connecting portion is received in one of said equiinterval slots and fluid communication between said plurality of tube units is thereby obtained through said rectangular structure.
1 more element
A method for manufacturing a heat exchanger comprising the steps of:
- forming a pair of conduits;
- forming spaced openings in one side of each said conduit;
- forming a plurality of relatively shallow tray shaped plates having a depression therein, each having a pair of spaced, tapered, dished tongue portions at one end thereof;
- joining a pair of said tray shaped plates to form a plurality of tube members having a pair of spaced, hollow connecting portions at one end;
- arranging said conduits in side by side relation;
- inserting said hollow connecting portions into each of said spaced openings;
- and
- connecting said tubes to said conduits with said connecting portions extending into said holes.
5 more elements
Dependencies are inferred from the claim text.