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An Egr Outlet Structure For An Inclined Longitudinally Oriented Engine

Abstract: The subject matter disclosed herein relates to an outlet housing (400) of a catalytic converter for an inclined longitudinally oriented engine, the outlet housing (400) defining a cone shaped structure. The outlet housing (400) includes an exhaust gas outlet (408), and an exhaust gas recirculation (EGR) outlet structure (404) provided on the cone shaped structure. The EGR outlet structure (404) further includes a semi-cylindrical profile (502) with a covered base (502a) that protrudes outwardly from the cone shaped structure to define a pit structure (503) to collect condensated exhaust gas.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
30 November 2020
Publication Number
22/2022
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
delhi@lsdavar.in
Parent Application
Patent Number
Legal Status
Grant Date
2024-04-25
Renewal Date

Applicants

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

Inventors

1. UTTAM MISHRA
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
2. ABHINAV KUCHHAL
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
3. MANAS TRIPATHI
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
4. K.S. GOPALA KRISHNAN
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.
5. VINEETH S
Maruti Suzuki India Limited, Palam Gurugram Road, Gurugram, Haryana-122015, India.

Specification

Claims:We Claim:
1. An outlet housing (400) of a catalytic converter for an inclined longitudinally oriented engine, the outlet housing (400) defining a cone shaped structure, the outlet housing (400) comprising:

an exhaust gas outlet (408); andcharacterized in that
an exhaust gas recirculation (EGR) outlet structure (404) provided on the cone shaped structure, wherein the EGR outlet structure (404) comprises:
a semi-cylindrical profile (502) with a covered base (502a) protruding outwardly from the cone shaped structure to define a pit structure (503) to collect condensated gas.

2. The outlet housing (400) as claimed in claim 1, wherein an inner surface of the semi- cylindrical profile (502) is tapered down towards the base (502a) to define the curved profile.

3. The outlet housing (400) as claimed in claim 1, wherein the base (502a) of the semi-cylindrical profile (502) is angled towards the exhaust gas outlet (408) to drain the condensated exhaust gas.

4. The outlet housing (400) as claimed in claim 1, wherein a first opening (505) of the cone shaped structure is connected with the catalytic converter and a second opening (507) of the cone shaped structure is connected with the exhaust gas outlet (408).

5. The outlet housing (400) as claimed in claim 4, wherein the first opening (505) is broader than the second opening (507).

Description:AN EGR OUTLET STRUCTURE FOR AN INCLINED LONGITUDINALLY ORIENTED ENGINE
TECHNICAL FIELD
[0001] The present disclosure in general, relates to an inclined longitudinally oriented engine, and in particular, to a new and sophisticated structure for exhaust gas recirculation (EGR) outlet for an inclined longitudinally oriented engine.

BACKGROUND
[0002] Fig. 1 illustrates a conventional inclined longitudinally oriented engine in accordance with state-of-the-art. Fig. 1 illustrates a conventional exhaust manifold 102 that is connected with the inclined longitudinally oriented engine 104.
[0003] Conventionally, in inclined longitudinally oriented engines, there is no provision for any EGR outlet pipe for re-circulation of the exhaust gas, or any integration of the EGR housing with the exhaust manifold preceding the EGR housing, thereby making the inclined longitudinally oriented type engines devoid of a characteristic feature in the form of exhaust gas recirculation.
[0004] Accordingly, it forms an object of the present subject matter to provide a solution to the structural limitations/deficiencies prevalent in the art, in the form of providing a novel exhaust gas recirculation (EGR) outlet structure for the inclined longitudinally oriented engine, thereby increasing the overall efficiency of the engine.

SUMMARY
[0005] This summary is provided to introduce concepts related to an EGR outlet structure for an inclined longitudinally oriented engine. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0006] The subject matter disclosed herein relates to an outlet housing of a catalytic converter for an inclined longitudinally oriented engine, with the outlet housing defining a cone shaped structure. The outlet housing includes an exhaust gas outlet, and an exhaust gas recirculation outlet structure provided on the cone shaped structure. The EGR outlet structure further includes a semi-cylindrical profile with a covered base that protrudes outwardly from the cone shaped structure to define a pit structure to collect condensated exhaust gas.
[0007] In an aspect, an inner surface of the semi-cylindrical profile is tapered down towards the base to define the curved profile.
[0008] In an aspect, the base of the semi-cylindrical profile is angled towards the exhaust gas outlet to drain the condensated exhaust gas.
[0009] In an aspect, a first opening of the cone shaped structure is connected with the catalytic converter and a second opening of the cone shaped structure is connected with an exhaust gas outlet.
[00010] In an aspect, the first opening is broader than the second opening.
[00011] The solution proposed by the present disclosure as mentioned above provides a novel exhaust manifold with a rear cone post catalytic converter, which includes an EGR housing integrated with the cone and has a shape which guides gas from the main exhaust stream to the EGR system. Moreover, the EGR housing has a novel shape which accumulates any condensate that falls back from the EGR system and directs it away from the catalytic converter and towards the exhaust stream.
[00012] To further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit the scope of the present subject matter.
[00013] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
[00014] 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 invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
[00015] FIG. 1 illustrates a conventional inclined longitudinally oriented engine in accordance with state-of-the-art.
[00016] FIG. 2 illustrates an EGR outlet structure integrated with a catalytic converter according to an embodiment of the present subject matter.
[00017] FIG. 3 illustrates an outlet housing of the catalytic converter according to an embodiment of the present subject matter.
[00018] FIG. 4(a) represents a conical shaped structure of the outlet housing according to an embodiment of the present subject matter.
[00019] FIG. 4(b) illustrates an inclined view of the outlet housing according to an embodiment of the present subject matter.
[00020] Fig. 4(c) illustrates another view of the outlet housing according to an embodiment of the present subject matter.
[00021] 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
[00022] 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.
[00023] 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.
[00024] The terminology used herein is to describe particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including,” when used herein, specify the presence of 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.
[00025] 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.
[00026] 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.
[00027] 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.
[00028] 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.
[00029] FIG. 2 illustrates an EGR outlet integrated with a catalytic converter according to an embodiment of the present subject matter. Fig. 2 illustrates an EGR outlet structure 300, a catalytic converter 304, and a tail pipe 306. As illustrated in Fig. 2, the EGR outlet 300 is connected to the tail pipe 306. Other components of the integrated EGR outlet structure 300 are explained in detail with the help of Figs. 3 and 4.
[00030] Fig. 3 illustrates an outlet housing 400, defining the cone shaped structure of the catalytic converter according to an embodiment of the present subject matter. The outlet housing 400 includes an exhaust gas outlet 408, and an exhaust gas recirculation (EGR) outlet structure 404 provided on the cone shaped structure. Further, the outlet housing 400 includes a bracket 410 mounted on the exhaust gas outlet 408 to attach the outlet housing 400 with the inclined longitudinally oriented engine. Other key characteristics and diagrammatic details of the outlet housing 400 are explained with the help of Figs. 4(a)-(c).
[00031] According to a further embodiment of the present subject matter, Figs. 4(a)-4(c) illustrate the conical shaped structure of the outlet housing 400, depicting the shape contours and the gas flow within the EGR structure.
[00032] Fig. 4(b) illustrates an inclined view of the outlet housing according to an embodiment of the present subject matter. As illustrated in Fig. 4(b), the EGR outlet structure includes a semi-cylindrical profile 502 with a covered base 502a that is protruded outwardly from the cone shaped structure to define a pit structure 503 to collect the condensated exhaust gas.
[00033] Further, as illustrated in Fig. 4(a), an inner surface of the semi-cylindrical profile 502 is tapered down towards the base 502a to define the curved profile. Also, the base 502a of the semi-cylindrical profile 502 is angled towards the exhaust gas outlet 408 to drain the condensated exhaust gas.
[00034] It is further in accordance with an embodiment of the present subject matter,that a first opening 505 of the cone shaped structure is connected with the catalytic converter and a second opening 507 of the cone shaped structure is connected with the exhaust gas outlet 408. The first opening of the cone shaped structure is broader than the second opening.
[00035] Accordingly, the conical shaped structure 512 of the outlet housing 400 encompasses a pit structure which enables the collection of condensates falling back from the EGR system into the pit, thereby directing the flow of condensed EGR gas away from the catalytic converter and towards the main exhaust stream exiting from the tail pipe (as illustrated in Figs. 4(a), (b) and (c)).

TECHNICAL ADVANTAGES
[00036] The present disclosure provides a novel EGR outlet structure integrated with the conical shaped post catalytic converter feature of the exhaust manifold, enabling directing the exhaust gas from main stream to the EGR system.
[00037] The present disclosure provides an EGR outlet including a pit structure which enables the collection of condensate falling back from the EGR system, and directing it away from the catalyst converter towards the main exhaust stream.
[00038] Furthermore, each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[00039] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
[00040] Furthermore, those skilled in the art can appreciate that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.
[00041] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.
[00042] While the foregoing describes various embodiments of the present disclosure, other and further embodiments of the present disclosure may be devised without departing from the basic scope thereof. The scope of the present disclosure is determined by the claims that follow. The present disclosure is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

Documents

Application Documents

# Name Date
1 202011052126-STATEMENT OF UNDERTAKING (FORM 3) [30-11-2020(online)].pdf 2020-11-30
2 202011052126-FORM 1 [30-11-2020(online)].pdf 2020-11-30
3 202011052126-FIGURE OF ABSTRACT [30-11-2020(online)].jpg 2020-11-30
4 202011052126-DRAWINGS [30-11-2020(online)].pdf 2020-11-30
5 202011052126-DECLARATION OF INVENTORSHIP (FORM 5) [30-11-2020(online)].pdf 2020-11-30
6 202011052126-COMPLETE SPECIFICATION [30-11-2020(online)].pdf 2020-11-30
7 202011052126-Proof of Right [16-03-2021(online)].pdf 2021-03-16
8 202011052126-FORM-26 [16-03-2021(online)].pdf 2021-03-16
9 202011052126-Proof of Right [22-03-2021(online)].pdf 2021-03-22
10 202011052126-FORM-26 [22-03-2021(online)].pdf 2021-03-22
11 202011052126-FORM 18 [20-04-2021(online)].pdf 2021-04-20
12 202011052126-Power of Attorney-240321.pdf 2021-10-19
13 202011052126-OTHERS-240321.pdf 2021-10-19
14 202011052126-Correspondence-240321.pdf 2021-10-19
15 202011052126-FER.pdf 2022-06-29
16 202011052126-FER_SER_REPLY [16-12-2022(online)].pdf 2022-12-16
17 202011052126-CORRESPONDENCE [16-12-2022(online)].pdf 2022-12-16
18 202011052126-US(14)-HearingNotice-(HearingDate-20-03-2024).pdf 2024-02-15
19 202011052126-FORM-26 [19-02-2024(online)].pdf 2024-02-19
20 202011052126-Correspondence to notify the Controller [13-03-2024(online)].pdf 2024-03-13
21 202011052126-Written submissions and relevant documents [28-03-2024(online)].pdf 2024-03-28
22 202011052126-PatentCertificate25-04-2024.pdf 2024-04-25
23 202011052126-IntimationOfGrant25-04-2024.pdf 2024-04-25
24 202011052126-PROOF OF ALTERATION [28-06-2024(online)].pdf 2024-06-28

Search Strategy

1 202011052126ssE_28-06-2022.pdf

ERegister / Renewals

3rd: 02 May 2024

From 30/11/2022 - To 30/11/2023

4th: 02 May 2024

From 30/11/2023 - To 30/11/2024

5th: 02 May 2024

From 30/11/2024 - To 30/11/2025