FUEL INJECTOR REMOVAL ADAPTER.
Patent Information
- Application Number
- MX2022014159
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-11-10
- Filing Date
- 2022-11-10
- Publication Date
- 2026-02-25
- Estimated Expiration
- 2042-11-10
AI Technical Summary
Existing methods for removing fuel injectors from engines, such as using a collar-type retaining slip ring, often damage the injectors due to the application of excessive clamping force and small contact points, particularly when the injectors are made of plastic.
A fuel injector removal adapter with a member that engages the injector laterally and transfers force through a 270-degree contact ridge to prevent damage, using a machined aluminum design with a cutout portion and pocket to complement the injector's shape, allowing for parallel force vectors.
The adapter prevents damage to fuel injectors during removal by distributing force evenly across the strongest part of the injector, maintaining alignment and reducing the risk of cracking or breaking.
Smart Images
Figure MX431402B0
Abstract
Description
Fuel injectors are subject to engine temperatures that can rise due to various vehicle applications, such as towing, higher elevations, and higher ambient temperatures. Rubber / polymer O-ring seals can harden with age and application duty cycles. The embodiments relate to a removal adapter configured to engage a fuel injector secured to an engine and to allow the fuel injector to be removed from the engine without damaging it. BACKGROUND OF THE INVENTION Fuel injectors are typically removed from engines using a slip ring or collar-type clamp. A slip ring usually consists of two small steel fingers that are positioned at a point around the object to be removed. When the slip ring is pushed down, the collar, or fingers, exert a large clamping force on the object. Due to the small cross-section of the clamp, this technique is ineffective. Since fuel injectors are usually made of plastic, the strong clamping force, the wide extraction angle, combined with the small contact point of the injector, can damage it by cracking and breaking it. SUMMARY OF THE INVENTION The embodiments relate to a fuel injector removal adapter configured to engage with a fuel injector secured to an engine and to enable the removal of the fuel injector from the engine. The adapter engages with the fuel injector laterally, parallel to the injector, across a ridge. When the adapter is pulled, the force is transferred to the fuel injector, removing it from the engine. The adapter's configuration eliminates the lateral and angular force vectors that would otherwise be placed on the injector by other removal methods. Specifically, the engagement across the ridge and the more than 270 degrees of contact place most, if not all, of the force on the strongest part of the fuel injector. The adapter's configuration and engagement prevent damage to the fuel injector during removal. In an exemplary embodiment, a fuel injector removal adapter comprises a member. The member includes a first face, a fuel injector receiving opening, and a pocket. The first face comprises a cutout extending across an edge of the first face. The fuel injector receiving opening is located on one side of the member and is attached to a precisely machined cutout on the first face. The fuel injector receiving opening has a greater width than the cutout, thus forming an edge. The edge extends radially inward into the member. The pocket is positioned within the member and is attached to the fuel injector receiving opening and the cutout. In some embodiments, the cut-out part and the fuel injector receiving opening form a tapered architecture. In some embodiments, the member has a side wall, an external side wall surface, and an internal side wall surface. The internal side wall surface is defined at least partially by the trimmed portion, and the grooved architecture provides 270 degrees of contact between the internal side wall surface and an external surface of a fuel injector when the fuel injector is received by the fuel injector removal adapter. In some embodiments, the member is cylindrical. RC Lfr Ln / Zznz / E / YIAI In some embodiments, the member is rigid. In some embodiments, the rigid member is made of machined turned aluminum. In some embodiments, the member has a second drop and the second face comprises an opening. In some embodiments, the member has at least one notch located on its side and positioned at the opposite end relative to the first face of the member. The notch extends along the longitudinal axis of the member. In some embodiments, the cut-out portion on the first face complements the shape of a fuel injector for a precise fit. In some embodiments, the fuel injector receiving opening complements the shape of a fuel injector. In some embodiments, the pocket complements the shape of a fuel injector. In an exemplary embodiment, a method for using a fuel injector removal adapter involves inserting a fuel injector into the fuel injector removal adapter. The fuel injector removal adapter comprises a member. The member has a first face, a fuel injector receiving opening, and a pocket. The first face comprises a cutout extending across an edge of the first face. The fuel injector receiving opening is located on one side of the member and is attached to the cutout of the first face. The fuel injector receiving opening has a width greater than the width of the cutout, thus forming a ridge. The ridge extends radially inward into the member. The pocket is positioned within the member and is attached to the fuel injector receiving opening and the cutout.The method of inserting the fuel injector into the fuel extraction adapter involves inserting the fuel injector into the fuel injector receiving opening. In some embodiments, the method involves coupling the fuel injector across the crest and nearly 270 degrees of contact. RC Lfr Ln / Zznz / E / YIAI In some embodiments, the method involves coupling the fuel injector through the ridge and pulling the fuel injector removal adapter to transfer force to the fuel injector. In some embodiments, the member further comprises a second face comprising an opening, and the method involves coupling the fuel injector through the edge and inserting a tool into the opening. In some embodiments, the member further comprises a second face comprising an opening, and the method involves coupling the fuel injector through the edge, inserting a tool into the opening, and pulling the tool to transfer force to the fuel injector. In some embodiments, the method involves forming a defile architecture around the fuel injector when the fuel injector is inserted into the fuel injector receiving opening. In some embodiments, the member has a side wall, an external side wall surface, and an internal side wall surface. The internal side wall surface is defined at least partially by the trimmed portion, and the grooved architecture provides 270 degrees of contact between the internal side wall surface and an external surface of the fuel injector when the fuel injector is received by the fuel injector removal adapter. Other features, aspects, objects, advantages, and possible applications of the present invention will become evident from the study of the exemplary embodiments and examples described below, in combination with the figures and accompanying claims. DESCRIPTION OF THE DRAWINGS The above and other objects, aspects, characteristics, advantages, and potential applications of this innovation will become more apparent from the following more detailed description, presented alongside the accompanying drawings. Similar reference numbers used in the drawings may identify similar components. RC Lfr Ln / Zznz / E / YIAI FIGS. 1-4 show an embodiment of the fuel injector removal adapter. FIG. 5 shows an embodiment of the fuel injector removal adapter with a fuel injector inserted into the fuel injector removal adapter. FIG. 6 shows an embodiment of the fuel injector with a tool inserted into the threaded opening of the fuel injector removal adapter. DETAILED DESCRIPTION OF THE INVENTION The following description is of exemplary embodiments currently being considered for carrying out the present invention. This description should not be taken in a limiting sense, but is given simply to describe the general principles and features of various aspects of the present invention. The scope of the present invention is not limited by this description. The embodiments relate to a fuel injector removal adapter 100 comprising a member 102 configured to receive a fuel injector 114. The member 102 is contemplated to be a rigid material (e.g., metal, metal alloy, plastic, polymer, ceramic, composite material, etc.). In a preferred embodiment, the member 102 is made of aluminum or a similar metal. In a more preferred embodiment, the member 102 is made of machined aluminum. In a further preferred embodiment, the member 102 is made of machined aluminum. The member 102 has a first face 104, a second face 106, and side walls 103. The member 102 has a longitudinal axis Lx (see FIG. 4) extending from a first face 104 to a second face 106. The member 102 is contemplated to be cylindrical in shape with a circular cross-section when viewed along the longitudinal axis Lx.Other cross-sectional shapes, such as triangular, square, hexagonal, etc., may be used. Each of the first face 104 and the second face 106 is shown to form a flat end, but any combination of faces 104 and 106 need not be flat. The member also has a fuel injector receiving opening 108 and a pocket 110. On or near the first face 104 there is a cut-out portion 112. The cut-out portion 112 extends from some area on the first face 104 through an edge of the first face 104. The cut-out portion 112 can be any shape, such as circular, triangular, square, hexagonal, RC Ib Ln / Zznz / E / YIAI etc., but is intended to complement the form of a fuel injector 114, which normally consists of a stem-like member, usually cylindrical or prismatic, topped with a knob-like spherical, hemispherical, or prismatic member. The trimmed portion 112 can be generated by machining techniques to form a precisely machined trimmed formation. The fuel injector receiving opening 108 is positioned on one side (for example, within a side wall 103) of the member 102 and is joined to the trimmed portion 112 on the first face 104. The fuel injector receiving opening 108 can be any shape, such as circular, triangular, square, hexagonal, etc., but is intended to complement the shape of a fuel injector 114, which normally consists of a stem-like member, usually cylindrical or prismatic, topped with a spherical, hemispherical, or prismatic knob-shaped member. The width of the fuel injector receiving opening 108 is configured to be greater than the width of the trimmed portion 112 to form a flange 116. The flange 116 extends radially inwards, meaning that the flange 116 extends from the perimeter of the first face 104 inwards towards the center point of the cross-sectional shape of member 102.The pocket 110 is positioned within member 102 and connects to the fuel injector receiving opening 108 and the cutout portion 112. The pocket 110 can be any shape, such as circular, triangular, square, hexagonal, etc., but is intended to complement the shape of a fuel injector 114, which typically consists of a stem-like member, usually cylindrical or prismatic, topped with a button-like member that is spherical, hemispherical, or prismatic. The pocket 110, the fuel injector receiving opening 108, and the cutout portion 112 can work together to house a fuel injector 114 when the fuel injector 114 is inserted into the fuel injector removal adapter 100. Once inserted, the fuel injector 114 can be engaged by the flange 116 to prevent it from slipping out of the fuel injector removal adapter 100.Once the fuel injector 114 is inserted into the fuel injector removal adapter 100, the fuel injector removal adapter 100 can be pulled (e.g., pulled in a direction defined by a vector going from the front face 104 to the second face 106) to transfer force to the fuel injector 114. The engagement through the ridge 116 places most, if not all, of the pulling force. RC Lfr Ln / Zznz / E / YIAI on the strongest part of the 114 fuel injector. This configuration and engagement prevent damage to the 114 fuel injector during removal. As can be seen from the foregoing disclosure, a preferred embodiment of the fuel injector removal adapter 100 comprises a member 102 with a first face 104, a second face 106, and side walls 103. On or near the first face 104, there is a cutout part 112 that is machined into the side wall 103. The cutout part 112 forms a perforated region within the member 102. This cutout part 112 not only complements the shape of a fuel injector 114, but the cutout part 112 is generated to form a fuel injector receiving opening 108 within the side wall 103. The member 102 therefore includes side walls 103 having an inner side wall surface 103a and an outer side wall surface 103b. The cut-out part 112 is defined by the surface of the inner side wall 103b, the ridge 116 and the pocket 110.The fuel injector receiving opening 108 is an opening that complements a side profile of a fuel injector 114, or is an opening that is at least as wide as the fuel injector 114 to allow the fuel injector removal adapter 100 to receive the fuel injector 114 by means of a lateral sliding motion; see FIG. 5. The trimmed portion 112 of the internal side wall surface 103b, the ridge 116, and the pocket 110 are precisely cut to generate a precise fit with the fuel injector 114. The fuel injector 114 has a formation 115 (e.g., lip, collar, etc.).) which fits into the trimmed portion 112 through the fuel injector receiving opening 108 and mechanically engages (e.g., rests against) the flange 116 when the fuel injector removal adapter 100 is pulled from the front face 104 to the second face 106; i.e., the inner sidewall surface 103b has an inner diameter that is equal to or greater than the outer diameter of this formation 115, but the ridge 116 has an inner diameter that is smaller than the outer diameter of this formation 115. While the fuel injector receiving opening 108 is wider than that of the fuel injector 114 to allow lateral sliding movement of the fuel injector 114 in and out, it is only slightly wider. This configuration allows the inner sidewall surface 103b to mechanically engage or rest against an outer surface of the fuel injector 114.With this configuration, the fuel injector removal adapter 100 forms a groove around the fuel injector 114, for example, the surface of the. RC Lfr Lnzzznz / E / YIAI inner side wall. 103b surrounds and rests against the outer surface of fuel injector 114 around the circumference of fuel injector 114 except at the fuel injector receiving opening 108. Since the fuel injector receiving opening 108 is only slightly wider than fuel injector 114, the surface of the inner side wall 103b can generate up to 270 degrees of contact with the outer surface of fuel injector 114 (or at least the portion of the outer surface of fuel injector 114 that is inside adapter 100) when adapter 100 receives fuel injector 114. This grooved architecture provides structural support to fuel injector 114 and helps to maintain fuel injector 114 in a straight position when forces are applied to remove fuel injector 114.The flange 116 and pocket 110 provide additional structural support and further aid in the proper alignment of the fuel injector 114. When the fuel injector 114 is received by the fuel injector removal adapter 100 and the adapter 100 is pulled from the front face 104 to the second face 106, the flange 116 mechanically engages with or rests against the formation 115 of the fuel injector 114. Vectors are then transferred to the fuel injector 114 within this formation 115. This flange 116 extends around the circumference of the inner sidewall surface 103b, and therefore the force(s) applied to the fuel injector 114 are distributed around this entire flange 116. This avoids or reduces high pressure points applied to fuel injector 114, high pressure points that tend to damage fuel injector 114.Ridge 116 is parallel or substantially parallel to formation 15 when fuel injector 114 is properly aligned due to the slitting architecture. Therefore, the force vectors transferred to fuel injector 114 through ridge 116 are parallel or substantially parallel to the longitudinal axis Lx. The slitting architecture forces fuel injector 114 to be properly aligned so that its longitudinal axis Ly is coaxial with that of Lx. Thus, the force vectors imposed on fuel injector 114 are parallel or substantially parallel to Ly. Formation 15 of fuel injector 114 is structurally capable of accommodating these force vectors without damaging fuel injector 114.In particular, there are few or no lateral force vectors (directions that are not parallel to Ly) imposed on fuel injector 114. Furthermore, no high pressure forces are imposed on fuel injector 114, since the force(s). RC Ib Ln / Zznz / E / YIAI imposed on the fuel injector 114 is distributed over the contact area of formation 15 / the flange 116. Member 102 may have at least one notch 118 formed in a side wall 103. Member 102 may have a plurality of notches 118. The notches 118 may be positioned facing the first face 104 and may extend with the longitudinal axis of member 102, meaning that the notches 118 run parallel to the longitudinal axis Lx of member 102. The notches 118 may improve the efficiency of the fuel injector removal adapter 100 when removing the fuel injector 114. For example, the notches 118 may provide an ergonomic design that allows a user to easily grip member 102 with their fingers and / or hands. The second face 106 may have an opening 106. It is contemplated that the second face 106 may have a threaded opening 120. The threaded opening 120 may receive a tool 122, such as a drive tool or a rotary tool, which can assist in the 100% efficient removal of the fuel injector from the adapter for removing the fuel injector 114. For example, a tool 122 may be inserted into the threaded opening 120, allowing a user to more easily pull on member 102 and transfer the force to the fuel injector 114. The thread of the opening is used to provide a catch or clamping mechanism between the tool 122 and the adapter 100. Other mechanical catch configurations, such as a pin retainer, interference fit, magnetic connection, etc., may be used. It should be understood that modifications can be made to the embodiments described in this document to meet a particular set of design criteria. For example, the number or configuration of components or parameters can be used to achieve a specific objective. It will be evident to those skilled in the art that numerous modifications and variations of the examples and embodiments described are possible in light of the preceding teachings of this disclosure. The examples and embodiments disclosed are presented for illustrative purposes only. Other alternative embodiments may include some or all of the features of the various embodiments described herein. For example, it is envisaged that a particular feature described, either individually or as part of an embodiment, may be combined with other features described individually, or with parts of other embodiments. AC Lfr Ln / Zznz / E / YIAI Therefore, the members and acts of the various realizations described in this document may be combined to provide additional realizations. The intention is to cover all modifications and alternative embodiments that may fall within the true scope of this invention, which will be given in its entirety. Furthermore, the disclosure of a range of values is a disclosure of every numerical value within that range, including endpoints. Therefore, although certain exemplary embodiments of the device and methods for manufacturing and using it have been discussed and illustrated herein, it should be clearly understood that the invention is not limited to them, but can be carried out and practiced in various ways within the scope of the following claims.
Claims
1. A fuel injector removal adapter, comprising: A member, comprising: a first face comprising a cutout portion extending across an edge of the first face; a fuel injector receiving opening positioned on one side of the member and attached to the cutout portion, wherein the fuel injector receiving opening has a width that is greater than the width of the cutout portion to form a ridge, the ridge extending radially inwards; and a pocket positioned within the member and attached to the fuel injector receiving opening and the cutout portion.
2. The fuel injector removal adapter of claim 1, wherein the cut-out portion and the fuel injector receiving opening form a tapered architecture.
3. The fuel injector removal adapter of claim 2, wherein: the member has a side wall, an outer side wall surface, and an inner side wall surface; the inner side wall surface is at least partially defined by the cut-out portion; and the cut-out architecture provides 270 degrees of contact between the inner side wall surface and an outer surface of a fuel injector when the fuel injector is received by the fuel injector removal adapter.
4. The fuel injector removal adapter of claim 1, wherein the member is cylindrical.
5. The fuel injector removal adapter of claim 1, wherein the member is rigid. RC Lfr Lnzzznz / E / YIAI 6. The fuel injector removal adapter of claim 5, wherein the member is made of machined aluminum.
7. The fuel injector removal adapter of claim 1, wherein the member has a second face comprising an opening.
8. The fuel injector removal adapter of claim 1, wherein the member has at least one notch located on the side and positioned facing the first face and extending with the longitudinal axis of the member.
9. The fuel injector removal adapter of claim 1, wherein the cut-out portion complements the shape of a fuel injector.
10. The fuel injector removal adapter of claim 1, wherein the fuel injector receiving opening complements the shape of a fuel injector.
11. The fuel injector removal adapter of claim 1, wherein the fuel injector receiving opening complements the shape of a fuel injector.
12. A method of using a fuel injector removal adapter, the method comprising: inserting a fuel injector into the fuel injector removal adapter, wherein: said fuel injector removal adapter comprises a member comprising: a first face comprising a cutout portion extending across an edge of the first face; a fuel injector receiving opening positioned on one side of the member and attached to the cutout portion, wherein the fuel injector receiving opening has a width that is greater than the width of the cutout portion to form a ridge, the ridge extending radially inward; RC Lfr Ln / Zznz / E / YIAI a pocket positioned within the member and attached to the fuel injector receiving opening and the cutout portion;Inserting the fuel injector into the fuel injector removal adapter involves inserting the fuel injector into the fuel injector receiving opening.
13. The method of claim 12, further comprising: coupling the fuel injector through the crest.
14. The method of claim 13, further comprising: pulling the fuel injector removal adapter to transfer force to the fuel injector.
15. The method of claim 13, wherein the member further comprises a second face comprising an opening, further comprising: Inserting a tool into the opening.
16. The method of claim 15, further comprising: pulling the tool inserted in the fuel injector removal adapter to transfer force to the fuel injector.
17. The method of claim 12, further comprising: forming a tapered architecture around the fuel injector when the fuel injector is inserted into the fuel injector receiving opening.
18. The method of claim 17, wherein: the member has a side wall, an outer side wall surface, and an inner side wall surface; the inner side wall surface is at least partially defined by the cut-out portion; and the roll-out architecture provides 270 degrees of contact between the inner side wall surface and an outer surface of the fuel injector when the fuel injector is received by the fuel injector removal adapter.