Flap seal
AssigneeCrane Process Flow Technologies GmbH
InventorHubertus Mühle
Life of this patent
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Abstract
The invention relates to a flap seal in the form of a lamella seal, comprising at least three essentially flat individual rings (1, 10) lying one on top of another in a bundle-type form. Said individual rings (1, 10) comprise an inner part which is respectively defined by an inner circumferential surface (2, 11). The outer-lying individual rings (1) are covering rings, and the inner-lying individual rings (10) are sealing rings. High-quality sealing surfaces can be produced by allocating positioning means to the covering rings (1) for positioning said covering rings (1) in relation to one another in the circumferential direction and/or in relation to inner-lying sealing rings (10) in the radial direction. The positioning means also enable a relative movement in the axial direction.
Claims10
A flap seal comprising:
- at least one seal ring having an inner cutout forming an inner surface;
- and
- at least two cover rings each having an inner cutout forming an inner surface, the cover rings and the seal ring being stacked one upon the other such that the seal ring is intermediate the cover rings relative to a stacking axis, and the cover rings including positioning means operable to maintain at least one of the cover rings at fixed relative circumferential positions to one another and the cover rings at fixed radial positions relative to the seal ring while permitting relative movement of the rings in the axial direction.
A method for producing a packet-type flap seal having individual rings, the method comprising:
- stacking at least one seal ring having an inner cutout forming an inner surface and at least two cover rings each having an inner cutout forming an inner surface in a designated serial arrangement, the cover rings and the seal ring being stacked one upon the other such that the seal ring is intermediate the cover rings relative to a stacking axis, and positioning means of the cover rings operate to maintain at least one of the cover rings at fixed relative circumferential positions to one another and the cover rings at fixed radial positions relative to the seal ring while permitting relative movement of the rings in the axial direction;
- finishing the outer contour of the flap ring via cutting or shaving work;
- separating the individual rings;
- de-burring the individual rings, to the extent required;
- and
- assembling together the individual rings in the original orientation and serial arrangement to thereby dispose the flap seal in condition for subsequent mounting thereof under axial pressure in a sealing location.
Dependencies are inferred from the claim text.