Elongated heat exchanger tubes having internal stiffening structure
AssigneeHudson Products Corporation
InventorsWalter Mohn, Douglas D. Zeigler
Life of this patent
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Abstract
An elongated heat exchanger tube has an internally located stiffener assembly which prevents the deflection of the tube wall due to pressure differentials between the tube internal and external surfaces while allowing the flow of fluid between the areas on opposite sides of the stiffener inside of the tube. The heat exchanger tube can have an elliptical, oval or flat cross-section. The internal stiffener can have a variety of cross-sectional configurations having uniform or non-uniform shapes.
Claims39
An elliptically shaped heat exchanger tube which provides increased resistance to sidewall deflection caused by a differential pressure existing when an outside surface of the tube sidewall is subjected to a first pressure, and an inside surface of the tube sidewall is subjected to a second different pressure, comprising:
- a tube-shaped assembly, located within the heat exchanger tube, for preventing deflection of the tube surfaces due to pressure differential without interfering with a flow of fluid between separate internal chambers of the heat exchanger tube which are created when the tube-shaped assembly is located within the heat exchanger tube;
- and
- means for securing the deflection preventing means to the inside surface of the heat exchanger tube.
An oval shaped heat exchanger tube which provides increased resistance to sidewall deflection caused by a differential pressure existing when an outside surface of the tube sidewall is subjected to a first pressure, and an inside surface of the tube sidewall is subjected to a second different pressure, comprising:
- a tube-shaped assembly, located within the heat exchanger tube, for preventing deflection of the tube surfaces due to the pressure differential without interfering with a flow of fluid between separate internal chambers of the heat exchanger tube which are created when the tube-shaped assembly is located within the heat exchanger tube;
- and
- means for securing the deflection preventing means to the inside surface of the heat exchanger tube.
A flat shaped heat exchanger tube which provides increased resistance to sidewall deflection caused by a differential pressure when an outside surface of the tube sidewall is subjected to a first pressure, and an inside surface of the tube sidewall is subjected to a second different pressure, comprising:
- a tube-shaped assembly, located within the heat exchanger tube, for preventing deflection of the tube surfaces due to the pressure differential without interfering with a flow of fluid between separate internal chambers of the heat exchanger tube which are created when the tube-shaped assembly is located within the heat exchanger tube;
- and
- means for securing the deflection preventing means to the inside surface of the heat exchanger tube.
Dependencies are inferred from the claim text.