Brush-type seal
AssigneeMTU Motoren-und Turbinen-Union Munchen GmbH
InventorsLothar Reisinger, Dieter Hagg, Werner Wenzl, Klaus Walther
Life of this patent
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Abstract
A brush-type seal has a wire bundle which is bent in a U-shape and is surrounded by a radially inward slotted ring shaped tube and by a housing consisting of two connected support rings. Application and maintenance of clamping forces is possible and is provided for to the ring shaped tube through the support rings. Attachments are provided on one supporting for fastening at a housing. The support rings are connected by welding at a welding joint which is spaced from the slotted tube which directly contacts the wire bundle.
Claims10
A brush-type seal comprising:
- a wire bundle, which has a mid-portion bent around a core ring in a U-shape;
- a ring-shaped tube having a continuous slot on a radially inwardly facing surface to surround the bent around mid portion of the wire bundle;
- wherein the tube is tensioned on opposite axial sides by two support rings joined together to form a housing, said two support rings being joined by a process that applies a required clamping force to the wire bundle via the joined support rings and the tube;
- and
- wherein the process that joins the support rings together is welding or soldering.
A brush-type seal comprising:
- a wire bundle, which has a mid portion bent around a core ring in a U-shape;
- a ring-shaped tube having a continuous slot on a radially inwardly facing surface substantially enclosing said mid portion and said core ring, wherein the tube, is enclosed on both sides under tension by two support rings joined together to form a housing that applies a required clamping force to the wire bundle via the joined support rings, and the tube, and wherein one of the support rings includes circumferentially spaced clamping lips, which clamp to said one support ring the other support ring at a radially outward circumference of said other support ring.
A brush-type seal comprising:
- a wire bundle, which has a mid portion bent around a core ring in a U-shape;
- a ring-shaped tube having a continuous slot on a radially inwardly facing surface to surround the bent around mid portion of the wire bundle;
- wherein the tube is tensioned on opposite axial sides by two support rings joined together to form a housing, said support rings being joined by a process that applies a required clamping force to the wire bundle via the joined support rings and the tube;
- wherein the process that joins the support rings together is welding or soldering;
- and
- wherein a circumferential slot of V-formed cross section is defined axially between the support rings, said slot being filled with welding or soldering material.
Dependencies are inferred from the claim text.