Appeal No. 2006-0934
Application No. 10/327,852
1. A heat exchange unit, comprising:
an end plate having a fitting hole; and
a plurality of heat transfer members, which are formed of a metallic thin sheet
into a predetermined shape and combined in parallel and integrally with each other,
each of said heat
transfer members being provided on at least a part thereof with a heat transfer face
having opposite surfaces with which first and second heat exchange fluids are to come
into contact, respectively, first gap portions through which said first heat exchange fluid
is to pass and second gap portions through which said second heat exchange fluid is to
pass being provided alternately between adjacent two heat transfer faces, and a first
opening communicating with said first gap portions to cause the first heat exchange fluid
to flow into and out from said first gap portions and a second opening communicating
with said second gap portions to cause the second heat exchange fluid to flow into and
out from said second gap portions being provided separately
from each other,
wherein:
each of said heat transfer members is formed into a rectangular shape, which
has on respective sides thereof flat portions having a prescribed width;
of said plurality of heat transfer members, adjacent two heat transfer members
between which said first gap portion is located are water-tightly welded together at the
flat portions thereof on a side where said second opening is placed, and adjacent two
heat transfer members between which said second gap portion is located are
water-tightly welded together at the flat portions thereof on a side where said first
opening is placed, and the adjacent two heat transfer members are closed on the side
where said first opening is placed;
the plurality of heat transfer members as combined are inserted, at the side
where said first opening is placed, into the fitting hole of the end plate sized to slidably
receive the
welded-together flat portions such that the end plate and the received, welded-together
flat portions contact each other, said fitting hole having a shape substantially coinciding
with an end
shape of said plurality of heat transfer members as combined on the side where said
first opening is placed, and said plurality of heat transfer members are welded to said
end plate along said
fitting hole;
2
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Last modified: November 3, 2007