Heat exchange – Regenerator – Checker brick structure
Patent
1976-08-17
1978-08-15
Davis, Jr., Albert W.
Heat exchange
Regenerator
Checker brick structure
277 83, 277 88, 267165, F28D 1900
Patent
active
041065530
ABSTRACT:
A sealing device for a rotary regenerative heat exchanger is provided with a pair of flat, rigid seal ring portions positioned on opposite sides of a rotary type regenerating body, with a minute clearance maintained between the seal ring portions and the peripheral edge portions of the regenerating body, and with at least a pair of cross bar portions extending crosswise past each center of the seal ring portions from one position on the peripheral edge portion of each seal ring portion to another symmetrically opposite position on the same peripheral edge portion of the seal ring portion. The cross bar portions are also spaced a minute clearance from the side surfaces of the regenerating body, the clearances being so predetermined as to effectively seal fluids tending to pass therethrough. The sealing device also provides a spacer ring sandwiched between the opposed seal ring portions as well as a center spacer shaft sandwiched between opposed central portions of the cross bar portions. The cross bar portions have flexibility which may accomodate their contours to possible deformations in the central portion of the regenerating body, and measures are provided to impart such flexibility. Unlike prior structure, the seal ring portions and cross bar portions are not urged against nor are they in contact with the side surfaces of the regenerating body but they are spaced a minute clearance therefrom thereby avoiding wear and fluid-leakage problems.
REFERENCES:
patent: 2852234 (1958-09-01), Mudersbach
patent: 2873952 (1959-02-01), Mudersbach et al.
patent: 3010703 (1961-11-01), Bellows et al.
patent: 3372735 (1968-03-01), Meijer
Nakamura Kenya
Okano Hiroshi
Davis Jr. Albert W.
Toyota Jidosha Kogyo Kabushiki Kaisha
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