A nose cone assembly is provided comprising a nose cone 104, a support ring 106 on which the nose cone 104 is mounted, and an insulating layer 110 disposed between the nose cone 104 and the support ring 106, the insulating layer 110 at least partially comprising glass fibers. A composite nose cone i
A nose cone assembly is provided comprising a nose cone 104, a support ring 106 on which the nose cone 104 is mounted, and an insulating layer 110 disposed between the nose cone 104 and the support ring 106, the insulating layer 110 at least partially comprising glass fibers. A composite nose cone is also provided comprising an attachment region A, in which composite fibers are oriented substantially perpendicular to an axis of rotation of the nose cone 104, and an impact region I, in which composite fibers are oriented substantially parallel to the axis of rotation of the nose cone 104. Also provided is a support ring 106 for a nose cone assembly, the support ring 106 comprising an annular main body 140 and an annular projecting attachment flange 142, the attachment flange 142 terminating in a plurality of circumferentially spaced attachment tabs 144, wherein the attachment flange 142 forms with the main body 140 a cross section having at least two C curves 160, 162.
대표청구항▼
1. A nose cone assembly comprising: a nose cone having an apex; anda support ring, the support ring comprises: an annular main body; andan annular attachment flange projecting from the annular main body, the annular main body having a portion extending radially inwardly from a base of the annular at
1. A nose cone assembly comprising: a nose cone having an apex; anda support ring, the support ring comprises: an annular main body; andan annular attachment flange projecting from the annular main body, the annular main body having a portion extending radially inwardly from a base of the annular attachment flange,the annular attachment flange terminating in a plurality of circumferentially spaced attachment tabs, wherein the annular attachment flange forms with the annular main body a cross-section having at least two C shaped curves,the annular attachment flange has a first portion extending radially and axially away from the annular main body towards the apex of the nose cone, the annular attachment flange has a second portion extending radially with respect to the annular main body, the annular attachment flange has a third portion extending radially and axially away from the annular main body towards the apex of the nose cone, wherein the annular attachment flange forms with the annular main body a cross-section having at least two C shaped curves, a first C shaped curve is formed between a radially inner end of the second portion of the annular attachment flange and the base of the annular attachment flange, a second C shaped curve is formed between a radially outer end of the second portion of the annular attachment flange and a base region of the attachment tabs, andwherein the nose cone is mounted on the plurality of attachment tabs of the support ring. 2. The nose cone assembly as claimed in claim 1, wherein the two C shaped curves form an S shaped curve. 3. The nose cone assembly as claimed in claim 1, wherein the attachment flange comprises a locating shoulder. 4. The nose cone assembly as claimed in claim 1, wherein the nose cone is a composite nose cone. 5. The nose cone assembly as claimed in claim 4, wherein the nose cone is filament wound. 6. The nose cone assembly as claimed in claim 4, comprising an insulating layer disposed between the nose cone and the support ring, the insulating layer at least partially comprising glass fibres, the insulating layer consists of glass fibres in a resin matrix. 7. The nose cone assembly as claimed in claim 6, wherein the insulating layer comprises an integral part of the nose cone. 8. The nose cone assembly as claimed in claim 6, wherein the insulating layer comprises a continuous annulus in the region of the nose cone at which it is mounted on the support ring. 9. The nose cone assembly as claimed in claim 6, wherein the insulating layer comprises a plurality of discrete insulating pads positioned at individual mounting locations. 10. The nose cone assembly as claimed in claim 6, wherein the insulating layer comprises at least one location feature for orienting the nose cone on the support ring. 11. The nose cone assembly as claimed in claim 6, wherein the insulating layer comprises a compression moulded component. 12. The nose cone assembly as claimed in claim 6, wherein the insulating layer is bolted to the nose cone. 13. The nose cone assembly as claimed in claim 6, wherein the insulating layer is adhered to the nose cone using adhesive. 14. The nose cone assembly as claimed in claim 4, wherein the composite nose cone comprising: an attachment region, wherein, in the attachment region, a majority of composite fibres are oriented substantially perpendicular to an axis of rotation of the nose cone; andan impact region, wherein, in the impact region, a majority of composite fibres are oriented substantially parallel to the axis of rotation of the nose cone. 15. The nose cone assembly as claimed in claim 1, wherein each attachment tab is flexible to a limited degree and the nose cone connects each of the attachment tabs together to distribute load or deflection occurring in any one of the attachment tabs amongst the other attachment tabs. 16. A nose cone assembly comprising: a nose cone having an apex; anda support ring, the support ring is generally Y-shaped in cross-section, the Y-shaped support ring comprises: three annular members integrally joined together at a junction and extending from the junction, a first annular member extending radially inwardly from the junction, a second annular member extending generally radially outwardly from the junction and a third annular member extending generally radially outwardly and generally axially away from the second annular member,the first annular member and the second annular member forming an annular main body and the third annular member forming an annular attachment flange projecting from the annular main body, the annular attachment flange terminating in a plurality of circumferentially spaced attachment tabs,the annular attachment flange has a first portion extending radially and axially away from the annular main body towards the apex of the nose cone, the annular attachment flange has a second portion extending radially with respect to the annular main body, the annular attachment flange has a third portion extending radially and axially away from the annular main body towards the apex of the nose cone, wherein the annular attachment flange forms with the annular main body a cross-section having at least two C shaped curves, a first C shaped curve is formed between a radially inner end of the second portion of the annular attachment flange and a base of the annular attachment flange, a second C shaped curve is formed between a radially outer end of the second portion of the annular attachment flange and a base region of the attachment tabs, andwherein the nose cone is mounted on the plurality of attachment tabs of the support ring.
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