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An Integrated Fuel Delivery Assembly

Abstract: The present subject matter disclosed herein relates to assembly (200) to provide multiple outlet positions for a fuel delivery. The assembly (200) has mountings (201) provided on a top casing (202) of a filter (207) on one side (203) of the circumference of the top casing (202). The mountings (201) have circular ports (204) with an opening that is accessible from outside the mountings (201). The circular ports (204) have threaded surface on an inside periphery. An expansion chamber (101) has ports (205a, 205b) that are provided on either side of the expansion chamber (208). The port (205b) has a threaded surface provided on the outer periphery for joining with the threaded surface on one of the circular ports (204). The mountings (201) are configured to provide multiple mounting locations for the expansion chamber (208).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
31 January 2022
Publication Number
31/2023
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

MARUTI SUZUKI INDIA LIMITED
1 Nelson Mandela Road, Vasant Kunj, New Delhi-110070, India.

Inventors

1. ROHAN SHARMA
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
2. ABHISHEK KHANDELWAL
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
3. PRAVEEN JADHAV
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
4. DEVANANDA PAI
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.

Specification

The present subject matter described herein relates to an engine auxiliary part of fuel system. In particular, the present subject matter relates to an assembly to provide multiple outlet positions for a fuel delivery. More specifically, the assembly includes an expansion chamber that is integrated with a filter that has multiple mounting provisions to mount the expansion chamber as per layout requirement.
BACKGROUND
[0002] Various fuel delivery systems are used to provide a desired amount of fuel to an engine for combustion.
[0003] In an existing fuel delivery circuit, an expansion chamber and a filter are present. The filter is there to prevent the oil or dust particles from entering the engine. Currently the filter consists of unidirectional inlet port and outlet port which leads to only one orientation possibility and constraints in terms of mounting.
[0004] The connection between the expansion chamber and the filter is done by using a rubber hose. Further clips are given on further ends to join the connection, such as connection between the rubber hose and expansion chamber and connection between the rubber hose and the filter.
[0005] Since one end of the hose is connected to the filter and the other end is connected to the engine, there is a large dynamic envelope. The hose connected between the filter and expansion chamber is flexible and therefore there is a possibility of overall movement of the parts with respect to or due to the overall movement of the vehicle.

[0006] In conventional CNG system a lot of parts are required to complete the assembly, therefore a lot of space is required for layouting the parts in the CNG system. Since, multiple parts are required to be assembled to complete the circuit leading to multiple assembly operations which in turn leads to increase in cost and increase in assembly time.
[0007] Further, the hose that connects the expansion chamber and the filter needs to be developed for in a different way for different models as the layout for engine space is different. Therefore, new parts need to be developed as per layout requirements for every model.
[0008] In a prior art, an expansion chamber is provided near the fuel tank and it comprises of two parts that are connected with each other through flange joints or other type of joints.
[0009] The problem with the above state of art is that it does not have multiple mounting locations and as different models have different layouts, new parts have to be developed as per the layout and requirements of the particular model.
[0010] Therefore, it is required to provide a fuel delivery circuit that has an integrated filter with multiple mounting locations for an expansion chamber.
OBJECTS OF THE DISCLOSURE
[0011] It forms an object of the present disclosure to overcome the aforementioned and other drawbacks/limitations in the existing solutions available in the form of related prior arts.
[0012] It is a primary object of the present disclosure to provide a fuel delivery circuit that has an integrated filter and expansion chamber.
[0013] It is another object of the present disclosure to provide a cost effective way of assembling the filter with the expansion chamber.
[0014] It is yet another object of the present disclosure to reduce the number of sealing joints leading to less possibilty of leakage.

[0015] It is yet another object of the present disclosure to reduce and simplify assembly operations and fuel delivery circuit parts.
[0016] It is yet another object of the present disclosure to improve packaging of overall layout.
[0017] These and other objects and advantages of the present subject matter will be apparent to a person skilled in the art after consideration of the following detailed description taken into consideration with accompanying drawings in which preferred embodiments of the present subject matter are illustrated.
SUMMARY
[0018] A solution to one or more drawbacks of existing technology and additional advantages are provided through the present disclosure. Additional features and advantages are realized through the technicalities of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered to be a part of the claimed disclosure.
[0019] The present disclosure provides a solution in the form of an assembly to provide multiple outlet positions for fuel delivery. It includes a plurality of mountings provided on a top casing of a filter on one side of the circumference of the top casing, wherein the mountings have circular ports with an opening that is accessible from outside the mountings, wherein the circular ports have threaded surface on an inside periphery, an expansion chamber having ports provided on either side of the expansion chamber, wherein the port has a threaded surface provided on the outer periphery, wherein the threaded surface on one of the port out of the ports is joined inside the threaded surface on one of the circular ports, wherein the mountings are configured to provide multiple mounting locations for the expansion chamber.
[0020] In an aspect, the circular port houses the port of the expansion chamber.
[0021] In an aspect, each mounting out of the plurality of mountings are positioned adjacent to each another.

[0022] In an aspect, the expansion chamber is configured to be rotated on the threaded surface on one of the port to get itself locked with the threaded surface of the circular port.
[0023] In an aspect, an O-ring is seated in a groove provided on the outer surface of the mountings.
[0024] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
[0025] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the present disclosure may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to make reference to features and components. Some embodiments of system or methods or structure in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0026] Fig. 1(a) illustrates a perspective view of an assembly to provide multiple outlet positions for a fuel delivery according to the present disclosure;
[0027] Fig. 1(b) illustrates an exploded view of the assembly to provide multiple outlet positions for a fuel delivery according to the present disclosure
[0028] Fig. 2(a) and 2(b) illustrates multiple orientations of an expansion chamber on the mountings according to the present disclosure.

[0029] The figures depict embodiments of the present subject matter for illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION OF INVENTION
[0030] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0031] It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0032] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0033] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the

context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0034] In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
[0035] Hereinafter, a description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the present disclosure.
[0036] The present invention discloses about an assembly to provide multiple positions for a fuel delivery. This is done by integrating an expansion chamber with a filter or removing the parts in between expansion chamber and filter wherein the filter has multiple mounting locations for fixing the expansion chamber in multiple orientations as per layout requirement.
[0037] Referring to FIG. 1(a) it shows the top view of the assembly (200) to provide multiple outlet positions for a fuel delivery. The assembly (200) is constituted of a filter (207) that has multiple mountings (201) on one side (203) of its circumference. The mountings (201) have circular ports (204) with a threaded surface. The expansion chamber (208) has two ports (205a, 205b) on either side, where one port (205a) is inserted inside any of the mountings (201).
[0038] The mountings (201) are positioned on a top casing (202) that is given on the filter (207). The top casing (202) has a unidirectional inlet port (206) through which the fuel goes inside the filter (207) for filtering the fuel in order to prevent the dust particles from entering the engine. The multiple mountings (201) are

multiple outlet ports for mounting the expansion chamber (208) in multiple orientations and delivering fuel to an engine. The mountings (201) cover any portion of the circumference of the top casing (202).
[0039] Further, the mountings (201) have the circular ports (204) that are hollow. So, these circular ports (204) have an opening that is accessible from outside. The mountings (201) are located adjacent to each other leaving no gap in between and these mountings (201) have threaded surface inside the periphery of the circular ports (204). The threaded surface is a female thread that is provided to join with the male thread as given on the outer periphery of one of the port (205a) on the expansion chamber (208).
[0040] The expansion chamber (208) that has to be mounted to the top casing (202) of the filter (207) is reduced to a simple layout with constructional features that includes only the expansion chamber (208) with ports (205a, 205b) that are provided on the either ends of the expansion chamber (208).
[0041] The port (205b) that is to be inserted inside the mounting (201) has a threaded surface that is given on the outer periphery. Basically, the hose (205b) has a male thread on its outer peripheral surface, whereas the circular ports (204) on the mountings (201) have a female thread.
[0042] During assembling, the male thread provided on the port (205b) of the expansion chamber (208) is inserted and rotated around the female thread that is given on the inside periphery of the circular port (204) of the mountings (201).
[0043] With this, the overall assembling operations are reduced and simplified by reducing the number of parts such as elongated hoses and clips.
[0044] Referring to FIG. 1(b) it shows an exploded view of the assembly (100). The assembly (100) includes the filter (207) that has the top casing (202). The top casing (202) is circular and is provided on top of the filter (207). The top casing (202) has mountings (201) provided on the circumference of the top casing (202) and the mountings (201) are located adjacent to one another.

[0045] The mountings (201) have multiple circular ports (204). The circular ports (204) are laced with the threaded surface. The threaded surface is provided inside the periphery of the circular ports (204). The threaded surface is a female thread that is provided to join with the male thread as given on the outer periphery of one of the ports (205b) that is given on the expansion chamber (208).
[0046] The expansion chamber (208) has two ports (205a, 205b) on either side, where the port (205b) is inserted inside any of the mountings (201). The port (205b) is also surrounded by the threaded surface having a male thread that is provided on the outside periphery of the port (205b).
[0047] During assembling, the male thread that is given on the port (205b) of the expansion chamber (208) is inserted and rotated around the female thread that is given on the inside periphery of the circular port (204) of the mountings (201).
[0048] An O-ring (209) is seated in a groove (210) that is located on the outer surface of the port 205b only and compressed during assembly between the port (205b) of the expansion chamber (208) and the female thread that is given on the inside periphery of the circular port (204) of the mountings (201), forming a seal at the interface. The O-ring (209) is provided on all the mountings (201).
[0049] Referring to FIG. 2(a) and 2(b), it shows multiple orientation of the expansion chamber (208) fixed to the multiple mountings (201) as per the layout requirement of the engine room of the vehicle. Therefore, common part such as an expansion chamber (208) is used for multiple layouts irrespective of any model or design. The expansion chamber (208) is integrated on the filter (207) to reduce the number of additional sealing parts.
[0050] The assembly to provide multiple outlet positions for a fuel delivery is given on the top casing (202) of the filter (207). Through the inlet port (206) the fuel goes inside the filter (207) and moves out of the outlet. Through the outlet, the fuel goes inside the expansion chamber (208). The outlet for fuel has multiple mountings (201) on any of which the expansion chamber (208) is mounted using port (205a) that is given on one side of the expansion chamber (208).

[0051] With the increase in number of mountings (201), the number of outlets has also increased to cater to multiple layouts that is not restricted to a single model.
[0052] Therefore, depending upon the layout of the engine room in a vehicle, the expansion chamber (208) is mounted on the multiple mountings (201) that has circular ports (204) with the threaded surface on the inside periphery. The threaded surface on the outer periphery is also provided on the port (205b). The port (205a) is further connected to any of the mounting out of the multiple mountings (201) depending upon the requirement of the layout.
TECHNICAL ADVANTAGES
[0053] With the help of the solution as proposed herein in the context of the present disclosure, packaging of the overall layout is improved.
[0054] The design of the present disclosure is able to improve the overall envelop of the parts by reducing the number of parts.
[0055] With the help of the present disclosure, assembly operations are further reduced and simplified.
[0056] Lastly, the number of joints are reduced leading to less possibility of leakage.
[0057] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation, no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such

phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to disclosures containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an" (e.g., "a" and/or "an" should typically be interpreted to mean "at least one" or "one or more"); the same holds true for the use of definite articles used to introduce claim recitations. Also, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of "two recitations," without other modifiers, typically means at least two recitations or two or more recitations). Furthermore, in those instances where a convention analogous to "at least one of A, B, and C, etc." is used, in general, such construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, and C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances, where a convention analogous to "at least one of A, B, or C, etc." is used, in general, such construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, or C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms or both terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."
[0058] It will be further appreciated that functions or structures of a plurality of components or steps may be combined into a single component or step, or the functions or structures of one-step or component may be split among plural steps

or components. The present disclosure contemplates all of these combinations. Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the disclosure, and other dimensions or geometries are possible. Also, while a feature of the present disclosure may have been described in the context of only one of the illustrated embodiments, such feature may be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present disclosure. The present disclosure also encompasses intermediate and end products resulting from the practice of the methods herein. The use of "comprising" or "including" also contemplates embodiments that "consist essentially of or "consist of the recited feature.

claim:

1. An assembly (200) to provide multiple outlet positions for a fuel delivery,
comprising of:
a plurality of mountings (201) provided on a circumference of the top casing (202) of a filter (207),
wherein the mountings (201) have circular ports (204) with an opening that is accessible from outside the mountings (201),
wherein the circular ports (204) have a threaded surface on an inside periphery;
an expansion chamber (208) having ports (205a, 205b) provided on either side of the expansion chamber (208),
wherein the port (205b) has a threaded surface provided on the outer periphery,
wherein the threaded surface on one of the ports (205b) out of the ports (205a, 205b) is joined inside the threaded surface on one of the circular ports (204),
wherein the mountings (201) are configured to provide multiple mounting locations for the expansion chamber (208).
2. The assembly (200) as claimed in claim 1, wherein the circular port (204) houses the port (205b) of the expansion chamber (208).
3. The assembly (200) as claimed in claim 1, wherein each mounting out of the plurality of mountings (201) are positioned adjacent to each another.
4. The assembly (200) as claimed in claim 1, wherein the expansion chamber (208) is configured to be rotated on the threaded surface on one of the port (205b) to get itself locked with the threaded surface of the circular port (204).

5. The assembly (200) as claimed in claim 1, wherein an O-ring (209) is seated in a groove (210) provided on the port (205b).

Documents

Application Documents

# Name Date
1 202211005177-STATEMENT OF UNDERTAKING (FORM 3) [31-01-2022(online)].pdf 2022-01-31
2 202211005177-FORM 1 [31-01-2022(online)].pdf 2022-01-31
3 202211005177-FIGURE OF ABSTRACT [31-01-2022(online)].jpg 2022-01-31
4 202211005177-DRAWINGS [31-01-2022(online)].pdf 2022-01-31
5 202211005177-DECLARATION OF INVENTORSHIP (FORM 5) [31-01-2022(online)].pdf 2022-01-31
6 202211005177-COMPLETE SPECIFICATION [31-01-2022(online)].pdf 2022-01-31
7 202211005177-Proof of Right [30-03-2022(online)].pdf 2022-03-30
8 202211005177-FORM-26 [30-03-2022(online)].pdf 2022-03-30
9 202211005177-Others-060422.pdf 2022-04-07
10 202211005177-GPA-060422.pdf 2022-04-07
11 202211005177-Correspondence-060422.pdf 2022-04-07
12 202211005177-FORM 18 [11-04-2022(online)].pdf 2022-04-11
13 202211005177-POA [22-06-2024(online)].pdf 2024-06-22
14 202211005177-FORM 13 [22-06-2024(online)].pdf 2024-06-22
15 202211005177-AMENDED DOCUMENTS [22-06-2024(online)].pdf 2024-06-22
16 202211005177-FER.pdf 2025-07-17
17 202211005177-FORM 3 [30-07-2025(online)].pdf 2025-07-30
18 202211005177-FORM-8 [27-10-2025(online)].pdf 2025-10-27
19 202211005177-OTHERS [25-11-2025(online)].pdf 2025-11-25
20 202211005177-FER_SER_REPLY [25-11-2025(online)].pdf 2025-11-25
21 202211005177-DRAWING [25-11-2025(online)].pdf 2025-11-25
22 202211005177-CLAIMS [25-11-2025(online)].pdf 2025-11-25

Search Strategy

1 202211005177_SearchStrategyNew_E_SearchStrategyE_14-07-2025.pdf