Patent ID: 11906249
Assignee: RTX CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 20:
21. A heat exchanger comprising:
a first manifold assembly comprising a stack of plates;
a second manifold assembly comprising a stack of plates; and
a plurality of tubes extending from the first manifold assembly to the second manifold assembly,, wherein:
the plurality of tubes comprises a plurality of groups of tubes;
for each of the groups of the tubes:
the tubes of the group have first ends mounted between plates of the first manifold assembly; and
the tubes of the group have second ends mounted between plates of the second manifold assembly; and

in at least one of the first manifold assembly and the second manifold assembly:
the stack of plates comprises a first end plate, a second end plate, and a plurality of intermediate plates; and
the plurality of intermediate plates are:
a plurality of first intermediate plates identical to each other; and
one or more second intermediate plates identical to each other if more than one but different from the first intermediate plates and alternating with the first intermediate plates.