Low to medium pressure high temperature all-ceramic air to air indirect heat exchangers with novel ball joints and assemblies
OwnerRobert G. Grahaminventor
Life of this patent
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Abstract
Low to medium pressure, high temperature, all ceramic, air-to-air, indirect heat exchangers, novel ball joints; connecting slip ring collars for ceramic tubes, that are useful in such heat exchangers, systems comprising several heat exchangers or systems comprising heat exchangers that are fabricated such that they provide more efficient heat exchangers than has been possible heretofore.
Claims6
An all-ceramic ball joint for use in an all-ceramic, air to air, indirect heat exchanger, said ball joint comprising a spherical body having an outer surface and an inner surface and having a near side and a tube side, said near side having a truncated face to form a flat surface on said near side;
- said spherical body having a first opening through it from the near side through the tube side;
- said tube side having a truncated face to form a flat surface on said tube side;
- said tube side having a second opening in alignment with and larger than the first opening to form a shoulder within said second opening to accommodate a ceramic tube therein;
- said second opening having a near end and a distal end, said second opening having an inside surface, said inside surface being beveled in a line from near the near end to the distal end thereof, the angle of bevel being from about 2 degrees to about 6 degrees from a plane formed by the outside surface of the ceramic tube placed therein;
- said outer surface of said spherical body being covered with a smooth, refractory ceramified, frit glaze.
Dependencies are inferred from the claim text.