Daimler-benz Ag

Klaus Wiegard

Karlheinz Kinast

Eggert Tank

Wolfgang Kleinekathofer

Johann Heil

The use of an alloy composed of 15 to 19% by weight of Cr, 5 to 32.5% by weight of Mo, 0.3 to 10% by weight of Si, up to 10% by weight of Al and up to 4.5% by weight of Ti, the remainder being Ni, as a sliding material for seals on rotary regenerative heat exchangers with a ceramic core is described. The sliding material is suitable especially for use in temperature ranges up to about 1100.degree. C.

Sliding material for seals on rotary regenerative heat exchangers with a

A seal for the gas channels of a regenerative heat-exchanger which consists of a sealing bar that abuts at a rotatable disk-shaped storage body and of a sealing diaphragm which, assisted by leaf spring elements, extends over the gap between the sealing bar and the oppositely disposed housing wall; the sealing diaphragm which is V-shaped or U-shaped in cross section, is enclosed along one of its legs and pressed against the sealing bar by a clamping strip secured at its one edge along the sealing bar; with its back side, the sealing diaphragm is disposed opposite at least one abutment arranged at the sealing bar.

Seal for a regenerative heat-exchanger

A sealing system for a rotating heat-exchanger with D-shaped sealing strips which includes a crossarm and an annular portion pressed against a rotating heat-exchanger by an elastic intermediate member which consists of a diaphragm leaf spring matched to the shape of the sealing strip and, for example, of U-shaped or V-shaped cross section, whereby the free end of one leg is connected with the sealing strip; the D-shape of the sealing strip has a preferably straight crossarm as well as a circularly shaped annular portion.

Seal for rotating heat exchanger

A seal for gas channels of a regenerative heat-exchanger with respect to the interior space of the housing surrounding gas channels and a storage body, which consists of a sealing bar that abuts with a slide layer at the storage body and of a sealing diaphragm which is supported at a support member provided with covered off notches and which extends obliquely over the gap between the sealing bar and the oppositely disposed housing wall and abuts at the housing wall with its upper edge projecting beyond the sealing bar; the support member thereby forms an acute angle in cross section whose one leg abuts flat at the sealing bar and is secured thereat only within the area of its edge opposite the angle apex, whereas a sealing diaphragm is secured to the other obliquely extending leg at the inside within the area of the angle apex which is assembled of individual sealing lamellae that mutually overlap between two notches of the support member and that, within the area of their overlap, are pressed against the support member by angularly bent leaf springs.

A heat-exchanger disk for a regenerative heat-exchanger of a gas turbine which is secured on a rotatable support by the interposition of spring elements, the spring elements are thereby in the form of leaf spring elements series-connected with one another in the shape of a ring and interconnected at their overlapping ends; the leaf spring elements are supported under prestress with outwardly curved arcuate portions at counter surfaces provided in the central aperture of the heat-exchanger disk and with inwardly curved arcuate portions at counter surfaces of the support. This is a division of application Ser. No. 531,795 filed Dec. 11, 1974.

Bearing support of the heat-exchanger disk of regenerative heat-exchanger

A heat-exchanger disk of a regenerative heat-exchanger of a gas turbine, which is secured on a rotatable carrier under interposition of ring-shaped, series-connected leaf spring elements which are connected with each other at their overlapping ends and which are supported with outwardly curved arcuate portions at counter-surfaces in a central opening of the heat-exchanger disk and with inwardly curved arcuate portions at counter-surfaces of the carrier; one retaining disk substantially coaxial to the heat-exchanger disk thereby abuts at each end face of the heat-exchanger disk whereby the two retaining disks hold the leaf spring elements in the carrier within the central opening and are connected with each other by tie-pins which extend through the annular space between the central opening and the carrier.

Central mounting of the heat-exchange plate of a regenerative

A heat-exchanger disk for a regenerative heat-exchanger of a gas turbine which is secured on a rotatable support by the interposition of spring elements, the spring elements are thereby in the form of leaf spring elements series-connected with one another in the shape of a ring and interconnected at their overlapping ends; the leaf spring elements are supported under prestress with outwardly curved arcuate portions at counter surfaces provided in the central aperture of the heat-exchanger disk and with inwardly curved arcuate portions at counter surfaces of the support.

Bearing support of the heat-exchanger disk of a regenerative

A bearing support for a rotatable regenerative heat-exchanger in disk form which is supported centrally on a support shaft by way of a roller bearing that includes drum-shaped roller bodies; the drum-shaped roller bodies are thereby several times longer than they are thick while the inner bearing surface of each roller body is formed by a concave surface portion, preferably constituted by a section of the bearing shaft itself, which has a smaller curvature as compared to the curvature of the drum-shaped roller bodies.

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Esslingen-Zollberg, Germany

Klaus Wiegard