snap-fit nose cone

Abstract

A snap fit nose cone comprising a body having a tapered nose and an edge with a snap fit lip configured such that the nose cone can be snapped into place on an inlet housing and such that the edge of the inlet housing abuts the edge of the inlet housing body.

Description

[0001] Cross-referencing of related patent applications

[0002] This application claims priority and benefit to U.S. Provisional Patent Application Serial No. 63 / 612,924, filed December 20, 2023, entitled “SNAP FIT NOSE CONE,” pursuant to Section 119(e) of Title 35 of the United States Code. U.S. Provisional Patent Application Serial No. 63 / 612,924 is incorporated herein by reference in its entirety. Technical Field

[0003] The embodiments generally relate to turbines. The embodiments relate to engines. The embodiments also relate to manufacturing methods and processes related to engine turbines. The embodiments further relate to engine turbine components. The embodiments relate to a snap-fit ​​engine turbine nose cone and a method for manufacturing the same. Background Technology

[0004] Engine turbines have wide applications in modern society. A turbine can generally be understood as a machine that converts energy in a fluid flow into another form of energy to produce work. Common applications of turbines include engines and energy production.

[0005] Turbine engines are commonly used for aircraft propulsion. In these types of applications, a nose cone is typically provided at the leading edge interface between the engine and the fluid flow. The nose cone guides the airflow and reduces drag. It also protects internal blade hardware, bushings, fasteners, and other engine components. For this purpose, the nose cone is typically made of a rigid material, and its shape is adapted to guide the fluid flow around the cone to form a desired flow pattern.

[0006] While nose cones are virtually ubiquitous in turbine engine design, some aspects remain less than ideal. For example, existing methods may involve bolting the nose cone to the housing. Doing so disrupts the smooth outer contour of the nose cone, interfering with airflow into the inlet housing. Similarly, bolting the nose cone adds extra parts and steps to the assembly process. These extra parts increase the risk of missing parts, assembly errors, loosening, and, in the worst-case scenario, being sucked into the engine.

[0007] Therefore, the art needs the improved nose cone assembly disclosed in the embodiments herein. Summary of the Invention

[0008] The following summary is provided to facilitate understanding of some innovative features unique to the disclosed embodiments and is not intended to be a comprehensive description. The various aspects of the disclosed embodiments can be fully understood by considering the entire specification, claims, drawings, and summary as a whole.

[0009] Therefore, one aspect of the disclosed embodiments includes an improved nose cone assembly and / or a component thereof.

[0010] Another aspect of the disclosed embodiments is to provide a method for manufacturing a turbine engine component.

[0011] Another aspect of the disclosed embodiments is to provide a snap-fit ​​nose cone for a turbine engine.

[0012] For example, in one embodiment, a nose cone includes a body, an edge formed on the body, and a snap-fit ​​lip formed on the edge of the body. In one embodiment, the edge formed on the body further includes an axial flange and a set-forward portion separating the edge of the housing body from the snap-fit ​​lip. In one embodiment, the edge formed on the body further includes a tip extending beyond the snap-fit ​​lip. In one embodiment, the nose cone further includes a key formed in the edge. In one embodiment, the nose cone further includes at least one edge cutout formed in the edge. In one embodiment, the nose cone is configured to snap-fit ​​with an inlet. In one embodiment, the shape of the snap-fit ​​lip matches a groove formed in the inlet.

[0013] In one embodiment, a snap-fit ​​nose cone includes a body, an edge formed on the body (the edge having a smaller diameter than the body), and a snap-fit ​​lip formed on the edge of the body, wherein the snap-fit ​​lip is configured to engage with an inlet / casing associated with a turbine. In one embodiment, the nose cone further includes an axial flange and a forward extension separating the housing body edge from the snap-fit ​​lip. In one embodiment, the snap-fit ​​nose cone further includes a key formed in the edge. In one embodiment, the snap-fit ​​nose cone further includes at least one edge cutout formed in the edge. In one embodiment, the snap-fit ​​lip is configured to permanently engage with an inlet / casing associated with a turbine.

[0014] In one embodiment, a nose cone includes a body, an edge formed on the body, and a snap-fit ​​lip formed on the edge of the body, the snap-fit ​​lip including a leading edge sloped surface, a flat top surface, and a trailing edge sloped surface. In one embodiment, the leading edge sloped surface is longer than the trailing edge sloped surface. In one embodiment, the trailing edge sloped surface is steeper than the leading edge sloped surface. In one embodiment, the nose cone is configured to snap-fit ​​with an inlet. In one embodiment, the shape of the snap-fit ​​lip is adapted to match a groove formed in the inlet. In one embodiment, the groove formed in the inlet includes a housing trailing edge sloped surface, a rear flat surface, and a rear engaging sloped surface. In one embodiment, the sum of the angles of the housing leading edge sloped surface and the leading edge sloped surface is 180 degrees. In one embodiment, the sum of the angles of the trailing edge sloped surface and the trailing edge sloped surface is 180 degrees. Attached Figure Description

[0015] The accompanying drawings, together with the detailed description, are incorporated herein and form part of the specification, wherein the same reference numerals in all separate views refer to the same or functionally similar elements, further illustrating the disclosed embodiments and serving to explain the embodiments disclosed herein.

[0016] Figure 1A A snap-fit ​​nose cone according to the disclosed embodiment is depicted; Figure 1B Another view of the snap-fit ​​nose cone according to the disclosed embodiment is depicted; Figure 2 An elevation cross-sectional view of the snap-fit ​​nose cone and the inlet housing / casing according to the disclosed embodiments is provided; Figure 3 An elevation view of a snap-fit ​​nose cone engaging with an inlet housing / casing according to a disclosed embodiment is provided; Figure 4 Another elevation view of the snap-fit ​​nose cone and inlet housing / casing according to the disclosed embodiments is provided; Figure 5 The illustration shows a snap-fit ​​nose cone engaging with an inlet according to a disclosed embodiment; Figure 6 The illustrations depict steps related to a method for manufacturing a snap-fit ​​nose cone according to a disclosed embodiment; and Figure 7 The illustration shows the steps related to a method for installing a snap-fit ​​nose cone on an inlet according to a disclosed embodiment. Detailed Implementation

[0017] The specific values ​​and configurations discussed in the following non-limiting examples may be changed and are cited only to illustrate one or more embodiments and are not intended to limit their scope.

[0018] Example embodiments will now be described more fully below with reference to the accompanying drawings, which illustrate illustrative embodiments. The embodiments disclosed herein may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the embodiments to those skilled in the art. The same reference numerals refer to the same elements throughout.

[0019] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It will be further understood that the terms “comprise” and / or “comprising,” when used in this specification, specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0020] Throughout the specification and claims, terms may have meanings implied or express in the context beyond their explicitly stated meanings. Similarly, the phrase "in one embodiment" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment" as used herein does not necessarily refer to different embodiments. For example, the claimed subject matter is intended to include combinations of all or some of the exemplary embodiments.

[0021] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the relevant technical context and will not be interpreted as having idealized or overly formal meanings unless explicitly defined herein.

[0022] It is anticipated that any of the embodiments discussed in this specification can be implemented with respect to any method, kit, reagent, or composition of the present invention, and vice versa. Furthermore, the compositions of the present invention can be used to implement the present invention.

[0023] It will be understood that the specific embodiments described herein are shown by way of example and not as limitations of the invention. The main features of the invention can be used in various embodiments without departing from the scope of the invention. Those skilled in the art will recognize, or can determine, many equivalents of the specific procedures described herein using only conventional experimentation. Such equivalents are considered to be within the scope of the invention and are covered by the claims.

[0024] In the claims and / or description, the use of the word "a" or "an" when used in conjunction with the term "comprising" may mean "one," but it is also consistent with the meanings of "one or more," "at least one," and "one or more." In the claims, the term "or" is intended to mean "and / or," unless explicitly indicated to refer only to alternatives or the alternatives are mutually exclusive; however, this disclosure supports the definition of referring only to alternatives and "and / or." Throughout this application, the term "about" is used to indicate that a value includes the inherent error variation of the device, the error variation when the method used to determine the value, or the variation existing between the objects of study.

[0025] As used in this specification and claims, the terms “comprising” (and any form of “comprising” such as “comprise” and “comprises”), “having” (and any form of “having” such as “have” and “has”), “including” (and any form of “including” such as “includes” and “include”), or “containing” (and any form of “containing” such as “contains” and “contain”) are inclusive or open-ended and do not exclude additional, uncited elements or method steps.

[0026] As used herein, the term "or combinations thereof" refers to all permutations and combinations of the items preceding the term. For example, "A, B, C, or combinations thereof" is intended to include at least one of the following: A, B, C, AB, AC, BC, or ABC, and also BA, CA, CB, CBA, BCA, ACB, BAC, or CAB if the order is important in the particular context. Continuing this example, combinations containing repetitions of one or more items or terms are explicitly included, such as BB, AAA, AB, BBC, AAABCCCC, CBBAAA, CABABB, and so on. Those skilled in the art will understand that there is generally no limit to the number of items or terms in any combination unless the context otherwise makes it obvious.

[0027] According to this disclosure, all compositions and / or methods disclosed and claimed herein can be manufactured and performed without excessive experimentation. Although the compositions and methods of the invention have been described with reference to preferred embodiments, it will be apparent to those skilled in the art that various changes can be applied to the compositions and / or methods described herein, in the steps or in the sequence of steps of the methods, without departing from the concept, spirit and scope of the invention. All such similar substitutions and modifications that will be apparent to those skilled in the art are considered to be within the spirit, scope and concept of the invention as defined by the appended claims.

[0028] The embodiments disclosed herein relate to a snap-fit ​​nose cone for an engine, such as a gas turbine engine, which can be assembled onto the engine without fasteners or auxiliary separation and holding features. The snap-fit ​​nose cone features an annular rib structure spanning the entire 360-degree span, positioned on an axial rib projecting from the rear side of the nose cone. This rib engages in a corresponding groove that can be formed in the engine's inlet housing. As the nose cone is pressed into the inlet housing, the rib deflects radially inward before snapping outward into the groove in the inlet housing. Once assembled, the nose cone is securely held in place. This technique reduces assembly time and cost by eliminating any additional fasteners. It also produces a smooth outer surface uninterrupted by fasteners, thereby improving airflow into the engine.

[0029] The embodiments disclosed herein relate to a snap-fit ​​nose cone 100, such as Figure 1A As shown in the diagram, the snap-fit ​​nose cone 100 generally includes a body 104 having a tapered nose portion 102. In some embodiments, the tapered nose portion 102 may be configured with a circular or curved profile.

[0030] The turbine side 106 of the body 104 further includes an edge 108. The diameter of the edge 108 may be smaller than the diameter of the body 104. When the nose cone 100 is snapped into place on the inlet housing, the edge 108 of the body 104 extends into the interior of the inlet housing, and the edge of the inlet housing abuts against the edge 116 of the inlet housing body. The edge 108 may further include a snap-fit ​​lip 110, as described in further detail herein.

[0031] In some embodiments, key 112 is formed on body 104 and configured to mate with a similar cutout in the inlet housing body. Key 112 can be used for alignment purposes, such that the joint between the body 104 of nose cone 100 and inlet housing body is flush. Furthermore, key 112 can prevent accidental rotation between the inlet housing and nose cone 100 after installation.

[0032] The interior 114 of the nose cone 100 may be hollow, although in other embodiments, additional structural supports may be formed in the interior 114 of the nose cone to prevent deformation due to impact.

[0033] Figure 1B Another embodiment of the nose cone 100 is illustrated. In this embodiment, a series of edge cuts 120 may be formed in the edge 108 of the body 104. The interruption of the annular edge 108 from the edge cuts 120 increases the flexibility of the edge. This reduces the installation force required to snap the nose cone 100 to the inlet housing, as well as the removal force required to remove the nose cone 100 from the inlet housing.

[0034] In another embodiment, the nose cone 100 can be incorporated into a cable channel to allow pressure and / or temperature sensors to pass through the front of the nose cone.

[0035] Figure 2 A perspective cross-sectional view of the upper portion of the snap-fit ​​nose cone 100 according to the disclosed embodiment is shown. As shown, the snap-fit ​​nose cone 100 generally includes a body 104 having a tapered nose portion 102. On the turbine side 106 of the body 104, details of the edge 108 are illustrated in this view.

[0036] Edge 108 may include an axial flange 202 on which a snap-fit ​​lip 110 is formed. The snap-fit ​​lip 110 may have an extension 214 from the edge 116 of the housing body. Similarly, the axial flange 202 may include a tip 210 that extends slightly beyond the snap-fit ​​lip 110.

[0037] The inlet housing / casing 204 may include an annular fitting configured with an annular snap-fit ​​recess 206. The annular snap-fit ​​recess 206 has a profile that matches the profile of the snap-fit ​​lip 110, such that the snap-fit ​​lip 110 engages within the annular snap-fit ​​recess 206. The annular snap-fit ​​recess 206 has a recess 212 from the mounting end 208 of the inlet housing / casing 204. The length of the recess 212 may nominally match the length of the extension 214, such that when the snap-fit ​​nose cone 100 engages with the inlet housing / casing 204 (as indicated by arrow 218), the mounting end 208 of the housing / casing 204 abuts flush with the edge 116 of the housing body.

[0038] Figure 3The illustration shows a perspective sectional view of the engagement of the edge 108 of the snap-fit ​​nose cone 100 with the inlet housing / casing 204. As shown, the annular snap-fit ​​groove 206 is engaged by the snap-fit ​​lip 110, such that the snap-fit ​​lip 110 engages within the annular snap-fit ​​groove 206. Similarly, a recessed section 212 extends from the mounting end 208 of the inlet housing / casing 204. The length of the recessed section 212 can nominally match the length of the protruding section 214, such that when the snap-fit ​​nose cone 100 engages with the inlet housing / casing 204, the mounting end 208 of the housing / casing is flush with the edge 116 of the housing body.

[0039] Figure 4 Several aspects of another embodiment of the snap-fit ​​nose cone 100 are illustrated. In this view, several aspects of the axial flange 202 and the snap-fit ​​lip 110 are provided. The snap-fit ​​lip 110 can be configured to have a leading edge inclined surface 402, a flat top surface 404, and a trailing edge inclined surface 406. The leading edge inclined surface 402 can be selected to be longer and less steep than the trailing edge inclined surface 406.

[0040] Similarly, the inlet housing / enclosure 204 may include a vertical front surface 408 and a housing leading edge sloped surface 410, a flat bottom surface 412, and a housing trailing edge sloped surface 414. The inlet housing / enclosure 204 may further include a rear flat surface 420 located between the housing trailing edge sloped surface 414 and the rear engagement sloped surface 418. The housing trailing edge sloped surface 414, the rear flat surface 420, and the rear engagement sloped surface 418 create a snap-fit ​​groove 416 in the inlet housing / enclosure 205.

[0041] It should be noted that the sum of the angles of the leading edge inclined surface 410 of the inlet housing / casing 204 and the leading edge inclined surface 402 of the snap-fit ​​nose cone 100 can be 180 degrees, making them parallel, and / or the sum of their relative angles with respect to the corresponding flat surfaces to which they are attached is 180 degrees. The sum of the angles of the mating inclined surface 418 and the leading edge inclined surface 410 of the housing can be 180 degrees, making them parallel, and / or the sum of their relative angles with respect to the corresponding flat surfaces to which they are attached is 180 degrees. Furthermore, the sum of the angles of the trailing edge inclined surface 406 of the snap-fit ​​nose cone 100 and the trailing edge inclined surface 414 of the housing can be 180 degrees, making them parallel, and / or the sum of their relative angles with respect to the corresponding flat surfaces to which they are attached is 180 degrees.

[0042] To mount the snap-fit ​​nose cone onto the inlet housing / casing 204, the leading edge bevel surface 402 can be pressed against the housing leading edge bevel surface 410 of the inlet housing / casing 204. The relative force required to push the snap-fit ​​lip 110 over the housing leading edge bevel surface 410 is less than the force required to remove the snap-fit ​​lip 110 from the annular snap-fit ​​groove 416. This is partly because the trailing edge bevel surface 406 and the housing trailing edge bevel surface 414 in the snap-fit ​​groove 416 are much steeper. In practice, this makes mounting the snap-fit ​​nose cone 100 much easier than removing it from the inlet housing / casing 204.

[0043] Figure 5 The illustration shows an exemplary engagement of the snap-fit ​​nose cone 100 with the inlet housing / casing 204. This view shows that the snap-fit ​​nose cone 100 can engage with the housing / casing 204 such that their respective edges are flush. (As shown in...) Figure 5 As further illustrated herein, the snap-fit ​​nose cone disclosed herein does not require external hardware (such as screws, bolts or rivets) to be connected to the inlet housing / casing 204, which improves airflow and reduces the number of parts that may fail.

[0044] Figure 6 The illustration depicts a method 600 for manufacturing a snap-fit ​​nose cone (such as a snap-fit ​​nose cone 100) using an additive manufacturing method according to a disclosed embodiment. It should be understood that other manufacturing methods may be used in other embodiments, and... Figure 6 The method provided is intended as an example. The method begins at step 605.

[0045] In step 610, the snap-fit ​​lip contour can be selected. In some embodiments, this may include selecting the angle of the leading edge of the snap-fit ​​lip and the contour of the trailing edge of the snap-fit ​​lip. In step 615, optional cutouts and / or keys can be optionally included in the snap-fit ​​cone.

[0046] Next, in step 620, the snap-fit ​​nose cone may optionally be digitally rendered in a cross-sectional manner, suitable for sending to additive manufacturing equipment (such as a 3D printer). The 3D printer can then render (print) the snap-fit ​​nose cone in step 625. It should be understood that steps 620 and 625 are exemplary. In other methods, the snap-fit ​​nose cone may be machined, injection molded, or produced by other such processes. The method ends at step 630.

[0047] Figure 7 The illustration depicts a method 700 for mounting a snap-fit ​​nose cone (such as snap-fit ​​nose cone 100) on an inlet housing / enclosure according to a disclosed embodiment. The method begins at step 705.

[0048] In step 710, the edge of the snap-fit ​​nose cone can be roughly aligned with the contour of the inlet housing / casing. If the snap-fit ​​nose cone includes a key, then in step 715 the key can be aligned with a matching cutout in the inlet housing.

[0049] In step 720, the snap-fit ​​nose cone edge can be inserted into the inlet housing / casing. It should be understood that this edge may have a diameter slightly smaller than the diameter of the inlet housing / casing, but can be wide enough to maintain contact with the inlet / housing to provide a tight connection. In step 725, the snap-fit ​​lip can be pressed to engage the snap-fit ​​groove of the inlet housing / casing. This engagement surface generates high friction to prevent the nose cone from unintentionally disengaging from the inlet housing / casing. The method ends at step 730.

[0050] The engagement of the snap-fit ​​nose cone disclosed herein may depend on several factors, including but not limited to the materials of the nose cone and the mating housing, the thickness of the axial ribs on the nose cone and the thickness of the mating housing, the height of the annular snap-fit ​​ribs, the lead-in angle of the snap-fit ​​ribs, and the return angle of the snap-fit ​​ribs. By adjusting these parameters, the disclosed snap-fit ​​nose cone embodiments can be configured such that they are easy or difficult to assemble and easy to disassemble; easy or difficult to assemble and difficult to disassemble; or easy or difficult to assemble and impossible to disassemble without damaging the parts.

[0051] With this in mind, in the disclosed embodiments, the snap-fit ​​nose cone is configured to be difficult or impossible to remove, as it is crucial that the nose cone does not detach during engine operation. However, the disclosed embodiments are also configured such that the installation force is not so high that assembly becomes difficult or impossible. Therefore, in a preferred embodiment, the snap-fit ​​nose cone is easy to assemble but difficult to remove. The nose cone may comprise plastic or printed plastic. It should be understood that in other embodiments, the nose cone may be made of other materials. However, mating parts (e.g., inlet housing / enclosure) may generally be much more rigid and may be metal.

[0052] Based on the foregoing, it is understood that several preferred and alternative embodiments are disclosed herein. In one embodiment, a nose cone includes a body, an edge formed on the body, and a snap-fit ​​lip formed on the edge of the body. In one embodiment, the edge formed on the body further includes an axial flange and a forward extension separating the edge of the housing body from the snap-fit ​​lip. In one embodiment, the edge formed on the body further includes a tip extending beyond the snap-fit ​​lip. In one embodiment, the nose cone further includes a key formed in the edge. In one embodiment, the nose cone further includes at least one edge cutout formed in the edge. In one embodiment, the nose cone is configured to snap-fit ​​with an inlet. In one embodiment, the shape of the snap-fit ​​lip is adapted to match a groove formed in the inlet.

[0053] In one embodiment, a snap-fit ​​nose cone includes a body, an edge formed on the body (the edge having a smaller diameter than the body), and a snap-fit ​​lip formed on the edge of the body, wherein the snap-fit ​​lip is configured to engage with an inlet / casing associated with a turbine. In one embodiment, the edge formed on the body further includes an axial flange and a forward extension separating the housing body edge from the snap-fit ​​lip. In one embodiment, the snap-fit ​​nose cone further includes a key formed in the edge. In one embodiment, the snap-fit ​​nose cone further includes at least one edge cutout formed in the edge. In one embodiment, the snap-fit ​​lip is configured to permanently engage with an inlet / casing associated with a turbine.

[0054] In one embodiment, a nose cone includes a body, an edge formed on the body, and a snap-fit ​​lip formed on the edge of the body, the snap-fit ​​lip including a leading edge sloped surface, a flat top surface, and a trailing edge sloped surface. In one embodiment, the leading edge sloped surface is longer than the trailing edge sloped surface. In one embodiment, the trailing edge sloped surface is steeper than the leading edge sloped surface. In one embodiment, the nose cone is configured to snap-fit ​​with an inlet. In one embodiment, the shape of the snap-fit ​​lip is adapted to match a groove formed in the inlet. In one embodiment, the groove formed in the inlet includes a housing trailing edge sloped surface, a rear flat surface, and a rear engaging sloped surface. In one embodiment, the sum of the angles of the housing leading edge sloped surface and the leading edge sloped surface is 180 degrees. In one embodiment, the sum of the angles of the trailing edge sloped surface and the trailing edge sloped surface is 180 degrees.

[0055] It should be understood that the other features and functions disclosed above, or variations thereof, can ideally be combined into many other different systems or applications. It should be understood that various substitutions, modifications, variations, or improvements can then be made to them that are not currently foreseeable or anticipated by those skilled in the art, and these are also intended to be covered by the appended claims.

Claims

1. A nasal cone, the nasal cone comprising: main body; The edge formed on the main body; and A snap-fit ​​lip is formed on the edge of the body.

2. The nasal cone as claimed in claim 1, wherein, The edge formed on the body further includes: Axial flange; and The protruding section that separates the edge of the housing body from the lip of the snap fastener.

3. The nasal cone as described in claim 1, wherein, The edge formed on the body further includes a tip that extends beyond the snap-fit ​​lip.

4. The nasal cone of claim 1, wherein the nasal cone further comprises: The bonds formed in the edge.

5. The nasal cone of claim 1, wherein the nasal cone further comprises: At least one edge cut is formed in the edge.

6. The nasal cone as claimed in claim 1, wherein, The nose cone is configured to engage with an imported snap fastener.

7. The nasal cone as claimed in claim 1, wherein, The shape of the snap-fit ​​lip is adapted to match the groove formed in the inlet.

8. A snap-fit ​​nose cone, the snap-fit ​​nose cone comprising: main body; An edge formed on the body, the edge having a smaller diameter than the body; and A snap-fit ​​lip is formed on the edge of the body, wherein the snap-fit ​​lip is configured to engage with an inlet / casing associated with the turbine.

9. The snap-fit ​​nose cone as described in claim 8, wherein, The edge formed on the body further includes: Axial flange; and The protruding section that separates the edge of the housing body from the lip of the snap fastener.

10. The snap-fit ​​nose cone as described in claim 8, wherein the snap-fit ​​nose cone further comprises: The bonds formed in the edge.

11. The snap-fit ​​nose cone as described in claim 8, wherein the snap-fit ​​nose cone further comprises: At least one edge cut is formed in the edge.

12. The snap-fit ​​nose cone as described in claim 8, wherein, The snap-fit ​​lip is configured to permanently engage with the inlet / casing associated with the turbine.

13. A nasal cone, said nasal cone comprising: main body; The edge formed on the main body; and A snap-fit ​​lip formed on the edge of the body, the snap-fit ​​lip comprising: Leading edge inclined surface; Flat-topped surface; and Trailing edge inclined surface.

14. The nasal cone as claimed in claim 13, wherein, The leading edge inclined surface is longer than the trailing edge inclined surface.

15. The nasal cone as claimed in claim 13, wherein, The trailing edge inclined surface is steeper than the leading edge inclined surface.

16. The nasal cone of claim 13, wherein, The nose cone is configured to engage with an imported snap fastener.

17. The nasal cone of claim 16, wherein, The shape of the snap-fit ​​lip is adapted to match the groove formed in the inlet.

18. The nasal cone of claim 17, wherein, The grooves formed in the inlet include: Inclined surface at the trailing edge of the housing; Back flat surface; and Post-jointing inclined surface.

19. The nasal cone as claimed in claim 18, wherein, The sum of the angle of the inclined surface at the leading edge of the housing and the angle of the inclined surface at the leading edge is 180 degrees.

20. The nasal cone of claim 18, wherein, The sum of the angle of the trailing edge inclined surface and the angle of the trailing edge inclined surface of the shell is 180 degrees.

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