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US 5,267,832 AGranted
Flarable retainer
AssigneeUnited Technologies Corporation
InventorsDonald E. Johnson, Richard J. Bergmann
Life of this patent
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AssigneeUnited Technologies Corporation
InventorsDonald E. Johnson, Richard J. Bergmann
Estimating the term…
A retainer (76) is disclosed for retaining a first element to a second element. Various construction details are developed which provide means to secure a second element to a first element wherein the elements are highly stressed, such as the rotating components of a turbomachine. In one particular embodiment, the retainer has a deformable portion (86) on one end, an internally threaded portion (88), and a shoulder (84) disposed on the end opposite the deformable portion and having a flat surface (92) to prevent rotation of the retainer during assembly. The deformable portion extends through cooperating retainer apertures (52, 68) in the two elements. The deformable portion is flared in place to produce a clinching force between the deformable portion and the shoulder and thereby secure the two elements together.
A retainer adapted to retain a first element having a first retainer aperture therethrough, a portion of which being frustoconical in shape, to a second element having a second retainer aperture therethrough, the first and second retainer apertures adapted to align to permit insertion of said retainer therethrough, said retainer having a longitudinal axis, an uninstalled condition, and an installed condition resulting from engagement with flaring means having a flaring surface, said retainer including:
An anti-vortex tube assembly in a turbomachine including a compressor rotor drum having a frustoconical retainer aperture, said assembly including an anti-vortex tube having a conduit, a flange, a head, and a retaining means disposed about a longitudinal axis, wherein said retaining means includes a retainer having deformable portion, means to engage flaring means, a shoulder disposed longitudinally opposite of the deformable portion, said deformable portion adapted to be flared to the frustoconical shape of the retainer aperture, said shoulder adapted to engage in abutting contact with the flange of the tube, and means to prevent rotation of the retainer about the longitudinal axis.
A method of securing a first element to a second element using a retainer and flaring means, wherein the first element has a first retainer aperture therethrough, a portion of which being frustoconical in shape, the second element having a second retainer aperture therethrough, the first and second apertures adapted to align to permit insertion of the retainer therethrough, the retainer having a deformable portion adapted to be flared to approximate the shape of the first retainer aperture, means to engage the flaring means, and a shoulder adapted to engage in abutting contact with the second element, the shoulder including anti-rotation means adapted to engage the second element to prevent rotation of the retainer, the method comprising the steps of:
A method of securing a first element to a second element using a retainer and flaring means, wherein the first element has a first retainer aperture therethrough, a portion of which being frustoconical in shape, the second element having a second retainer aperture therethrough, the first and second apertures adapted to align to permit insertion of the retainer therethrough, the retainer having a deformable portion adapted to be flared to approximate the shape of the first retainer aperture, means to engage the flaring means, and a shoulder adapted to engage in abutting contact with the second element, the shoulder including anti-rotation means adapted to engage the second element to prevent rotation of the retainer, the method comprising the steps of:
Dependencies are inferred from the claim text.