High efficiency, small volume evaporator for a refrigerant

Details High efficiency, small volume evaporator for a refrigerant High efficiency, small volume evaporator for a refrigerant

1997-03-05

1999-05-11

Leo, Leonard

Heat exchange

Line connected conduit assemblies

165176, F28F9/26

Patent

active

059017821

ABSTRACT:
A highly efficient parallel flow evaporator is provided by combining a pair of identical units (10), (12) wherein each includes a pair of identical, parallel, spaced headers (40) each having slots (44) receiving the ends of identical flattened tubes (22). Identical tanks (42) are bonded to each of the headers (40) and each has an identical central flat surface (52) and an identical, centrally located port (60). Fins (26) extend between adjacent tubes (22) in each unit (10), (12) and an inlet/outlet fixture (32) is bonded to the flat surfaces (52) of one pair of tanks (42) defined by adjacent tanks (42) of both of the units (10),(12). A cross-over fixture (30) is bonded to the flat surfaces (52) of the other pair of tanks (42) defined by the remaining tanks (42) of both of the units (10),(12). The invention minimizes the number of geometrically different parts, provides an improved distributor (140) for refrigerant, provides an improved inlet passage (108) that provides a uniform stream of refrigerant to the distributor (140) and provides for the direction of refrigerant emanating from the cross-over fixture (30) in a direction parallel to the tubes (22) for improved uniformity.

REFERENCES:
patent: 1825656 (1931-10-01), Derry
patent: 2184657 (1939-12-01), Young
patent: 5622219 (1997-04-01), Voss et al.

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