FIELD OF INVENTION
[0001] The present disclosure, in general, relates to a mounting structure of a catalytic converter on oil pan in vehicles and in particular, to a mounting structure, having three mounting points, of a catalytic converter in an internal combustion engine with BS6 Close coupled catalytic converter.
BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention.
[0003] Since the implementation of BS6 engine regulations, addition of an additional catalytic conversion device has become an inevitable requirement for a vehicle to be BS6 compliant as per the regulations and prescribed standards. The additional catalytic conversion device creates a concentration of maximum load at bottom portion of the catalytic converter due to installation of DPF at the bottom of catalytic converter shell. Due to aforementioned increase in weight at the bottom portion of catalytic converter there is a subsequent increase in vehicle's engine vibrations. It thus becomes important to maintain the catalytic converter in an intact position on the oil pan.
[0004] The existing state of the art there is no mounting provision to restrict vibration of the catalytic conversion device in all three direction, such as X, Y, and X axis.
[0005] The existing mounting arrangements comprise of one or more than one mounting portions for controlling the movement of catalytic converter in all three directions i.e. x-direction, y-direction and z-direction. However, provision of mounting portions on the catalytic converter cylinder leads to an increase in load on the bottom portion of the catalytic converter cylinder. The existing structures are also not able to control the movement of the catalytic converter in all three directions due to limited mounting portions provided in the existing mounting arrangement.

[0006] Therefore, in order to overcome the limitations of the existing provisions, there is need in the art to provide for
OBJECTS OF THE DISCLOSURE
[0007] It is therefore the object of the invention to overcome the aforementioned and other drawbacks in prior systems used for controlling the movement of bottom portion of catalytic converter mounted on oil pan in vehicles.
[0008] Another object of the present invention is to provide for a mounting structure on oil pan for controlling the movement of bottom portion of catalytic converter.
[0009] Another object of the present invention is to provide for a mounting structure for controlling the directional movement of bottom portion of catalytic converter in all three directions i.e. x-direction, y-direction and z-direction.
[0010] These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description taken in conjunction with the accompanying drawings in which a preferred form of the present invention is illustrated.
SUMMARY OF THE INVENTION
[0011] This summary is provided to introduce concepts related to a mounting structure on oil pan for controlling the movement of bottom portion of catalytic converter mounted on the oil pan in vehicles.
[0012] 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.
[0013] In an embodiment, the present disclosure relates to a mounting structure for controlling the movement of bottom portion of the catalytic converter on oil pan vehicles, the structure comprises a first mounting member mounted on top-centre portion of the oil pan with a H-shaped rib, a second mounting member mounted at

joinery of flange of upper portion of oil pan and butting surface of transmission casing and a third mounting member mounted on lowest centre portion of the bottom circumferential curvature portion of the oil pan between two supporting ribs adjoining bolt portion of upper flanges on butting portion of the oil pan having maximum thickness.
[0014] In an aspect the H-shaped rib panel is connected to an upper flange on the oil pan.
[0015] In an aspect the second mounting member comprises of an extended bolt portion from the flange of the oil pan having a ribbed structure at top-side curvature portion of the oil pan.
[0016] 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.
[0017] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined to form a further embodiment of the disclosure.
[0018] 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 DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principles. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system and/or methods in

accordance with embodiments of the present subject matter are now described, by way of example only, and with reference to the accompanying figures, in which:
[0020] Figure la to Id illustrate a schematic view of the mounting structure for controlling the movement of catalytic converter on oil pan in internal combustion engine in vehicles in accordance with an embodiment of the present disclosure;
[0021] It should be appreciated by those skilled in the art that any block diagrams herein represent conceptual views of illustrative systems embodying the principles of the present subject matter. Similarly, it will be appreciated that any flow charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes, which may be substantially represented in a computer-readable medium and executed by a computer or processor, whether or not such computer or processor is explicitly shown.
DETAILED DESCRIPTION
[0022] 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 clearly 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.
[0023] 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.
[0024] The terminology used herein is for the purpose of describing 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 clearly 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.
[0025] In addition, the descriptions of "first", "second", "third", and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly.
[0026] 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, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0027] 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.
[0028] The present subject matter relates a mounting structure for controlling the movement of catalytic converter mounted on the oil pan in a vehicle. The present mounting structure provides for three mounting portions for controlling the movement of the catalytic converter in all the three directions. The present mounting structure reduces the load and concentration of stresses on the bottom portion of the catalytic converter cylinder and oil pan.

[0029] Figure la to Id illustrates a schematic view of the mounting structure 100 on oil pan for controlling the movement of catalytic converter 101 due to increased load and increased engine vibrations in an internal combustion engine of a vehicle.
[0030] The present structure 100 is fixed on the oil pan provided exhaust system of the vehicle. The structure 100 comprises of a first mounting member 102 mounted on top-centre portion of the oil pan with a H-shaped rib panel 103, a second mounting member 104 mounted at joinery of flange 105a of upper portion of oil pan and butting surface of transmission casing and a third mounting member 106 mounted on lowest-centre portion 107 of the bottom circumferential curvature portion of the oil pan between two supporting ribs 108a, 108b adjoining bolt portion of upper flanges 105a, 105b on butting portion of the oil pan. The provision of a three-membered structure effectively accommodates fatigue and thermal failure developed on the catalytic converter in the internal combustion engine of the vehicle. In an embodiment of the present mounting structure, the H-shaped rib 103 is connected to an upper flange 109 on the oil pan. Further, the second mounting member 104 of the mounting structure 100 comprises of an extended bolt portion 110 extending from the top flange 111 of the oil pan and has a ribbed structure at top-side curvature portion of the oil pan.
[0031] As shown in Figure la to Id, the first mounting member 102 and the second mounting member 104 control the movement of the catalytic converter in the X-direction and Y-direction respectively. The movement of the catalytic converter in the Z-direction is controlled by the third mounting member 106 of the present mounting structure.
Technical advantages:
[0032] With the present disclosure, it is possible to control the movement of catalytic converter in all three directions, i.e., x-directions, y-directions and z-direction.

[0033] With the present disclosure, it is possible to reduce the movement of the catalytic converter caused by increased engine vibrations in vehicles.
[0034] With the present disclosure, the catalytic converter is held in an intact position on the oil pan.
[0035] With the present disclosure, it is possible to distribute stresses uniformly and prevent concentration of stresses at any single point or portion.
[0036] With the present disclosure, it is possible to provide a rigid, non-vibrating support to the catalytic converter.
[0037] With the present disclosure, it is possible to effectively absorb vibrations and accommodate thermal expansion and contraction of catalytic converter.
[0038] It should be understood, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise, as apparent from the discussion herein, it is appreciated that throughout the description, discussions utilizing terms such as "receiving," or "determining," or "retrieving," or "controlling," or "comparing," or the like, refer to the action and processes of an electronic control unit, or similar electronic device, that manipulates and transforms data represented as physical (electronic) quantities within the control unit's registers and memories into other data similarly represented as physical quantities within the control unit memories or registers or other such information storage, transmission or display devices.
[0039] Further, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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.

[0040] It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims.
[0041] 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.

Reference Numeral Particular/ Description
100 Mounting structure
101 catalytic converter
102 first mounting member
103 H-shaped rib panel
104 Second mounting member
105a, 105b upper flanges on circumferential curvature
106 Third mounting member
107 lowest-centre portion of the bottom circumferential curvature portion of the oil pan
108a, 108b supporting ribs
109 upper flange
110 Bolt portion
111 Top flange portion of oil pan

We Claim:

1. A mounting structure (100) to mount a catalytic converter (101) for
controlling vibrations, the structure (100) comprises:
a first mounting member (102) mounted on top-center portion of an oil pan with a H-shaped rib panel (103);
a second mounting member (104) mounted at joinery of flange (105a) of upper portion of the oil pan and butting surface of transmission casing; and
a third mounting member (106) mounted on lowest-centre portion (107) of the bottom circumferential curvature of the oil pan between two supporting ribs adjoining bolt portion of upper flanges (105a, 105b) on butting portion of the oil pan.
2. The mounting structure (100) as claimed in claim 1, wherein the H-shaped rib (103) is connected to an upper flange (109) on the oil pan.
3. The mounting structure (100) as claimed in claim 1, wherein the second mounting member (103) comprises of an extended bolt portion (110) from the top flange (105a) of the oil pan having a ribbed structure at top-side curvature portion of the oil pan.
4. The structure (100) as claimed in claim 1, wherein the first mounting member (102), the second mounting member (104), and the third mounting member (106) of the mounting structure (100) are mounted on the oil pan in the vehicle.