Hanon Systems

Keith Wilkins

Richard Armsden

Nigel Seeds

Hynek Hruza

A folded tube for a heat exchanger is disclosed. The tube includes first and second ends for connection to first and second headers of the heat exchanger. An outer wall of the tube provides at least two channels for carrying a heat exchange fluid between the first and second headers. At least one seam is formed in the outer wall extending the length of the tube, the seam including a pair of opposed flanges extending into the tube to form the two channels, the outer wall joined together along the seam. The tube further includes a first end region and a second end region, and an intermediate region. The tube flattened along its length to form at least two flattened lobes, each lobe including one of the channels, and the lobes in the intermediate region being flatter than the lobes in at least one of the end regions.

Tube for heat exchanger

A sealing element for a heat exchanger is defined by an elongate main body. An aspect ratio of the main body is greater than 1:1, wherein a height of the main body is greater than a width of the main body. The sealing element includes a plurality of enlarged portions spaced at predetermined intervals along a length of the main body. The enlarged portions have a width greater than the width of the main body, and are laterally offset inwardly with respect to the main body. The sealing element further includes a plurality of lugs protruding laterally from the main body. First pairs of the lugs are alternatingly arranged with the enlarged portions of the sealing element. Second pairs of the lugs are spaced along ends of the sealing element. Single ones of the lugs also protrude laterally outwardly from the enlarged portions.

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Goldhanger Maldon, United Kingdom

Keith Wilkins