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7367387 |
Tube plate for exhaust heat exchanger
A tube plate for exhaust heat exchangers, with punched openings to hold the tube ends of a tube bundle, wherein the openings are arranged grid-like with a web width b, and each of the openings has...
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6763921 |
Reduced-vibration tube array
A reduced-vibration tube array is disclosed. The array includes a plurality of tubes in a fixed arrangement and a plurality of damping members positioned within the tubes. The damping members...
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6478078 |
Heat exchanger for cooling circulating water of fuel cells & process for producing same
The invention relates to a heat exchanger for cooling a circulating water of a fuel cell. This heat exchanger includes (1) an aluminum member having an inner surface which defines an inner space in...
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4577380 |
Method of manufacturing heat exchangers
A water-condensing heat exchanger recovers heat from a hot flue gas, subjecting tubes of the heat exchanger to substantial thermal expansion and contraction, and corrosive constituents in the flue...
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4305452 |
Method of pre-heating boiler feed water
A method of pre-heating feed water for boilers is disclosed which utilizes the exchange of heat between the tube side of a heat-exchanger which contains de-salinated and de-ionized water and the...
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