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US 4,679,619 AGranted
Heat exchangers having a tube matrix in a housing
AssigneeMT Motoren-und Turbinen Union Munchen GmbH
InventorsBernhard Wohrl, Alfred Jabs
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AssigneeMT Motoren-und Turbinen Union Munchen GmbH
InventorsBernhard Wohrl, Alfred Jabs
Estimating the term…
A heat exchanger comprising a plurality of spaced U-shaped tubes arranged in a matrix and disposed in a housing for the flow of hot gases around the tubes for heat exchange with a fluid conveyed in the tubes. The housing has a well surrounding the curved U-portions of the tubes of the matrix in spaced relation a shell is diposed between the wall and the curved U-portions of the tubes of the matrix. A flexible seal is mounted between the wall and the shell for preventing flow of hot gases therebetween, and at least one brush seal is mounted between the shell and the curved U-portions of the tubes of the matrix for blocking passage of hot gases therebetween. The brush seal comprises a plurality of bristles clamped at one end in a recess in the shell and fanning out towards the other free end to tangentially and sealingly contact the outermost row of the tubes of the matrix.
In a heat exchanger having a plurality of spaced U-shaped tubes arranged in a matrix and disposed in a housing for the flow of hot gases around the tubes for heat exchange with a fluid conveyed in said tubes, said housing having a wall surrounding the curved U-portions of the tubes of the matrix in spaced relation, the improvement comprising a shell disposed between the wall and the curved U-portions of the tubes of the matrix, means including a flexible seal between the wall and the shell for preventing flow of hot gases therebetween, and means including at least one brush seal between the shell and the curved U-portions of the tubes of the matrix for blocking passage therebetween of hot gases.
Dependencies are inferred from the claim text.