FORM-2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
ENGINE HANGER SYSTEM FOR TWO WHEELERS
MAHINDRA TWO WHEELERS LIMITED
an Indian Company
of Dl Block, Plot No. 18/2 (Part),
MIDC, Chinchwad, Pune - 411 019,
Maharashtra, India.
Inventors:
1. EKAMBARAM MANSHA KUTTY
2. BHARTHUAR OM PRAKASH
3. KAMALAPURKAR MANOJ
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE NATURE OF THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE DISCLOSURE
The present disclosure relates to a support structure for an engine of a vehicle, more particularly, the present disclosure relates to a support structure for stably supporting an engine of a two-wheeler vehicle such as a motorcycle or a scooter or any other two wheeled vehicle.
BACKGROUND
A two-wheeler vehicle such as a motorcycle or a scooter or any other two wheeled vehicle includes a frame structure generally formed by joining a plurality of tubular elements. The engine of the vehicle is supported on the frame structure. More.specifically, an engine hanger for supporting the engine of the two-wheeler is mounted on the frame structure of the two-wheeler. The engine of the two-wheeler is generally a heavy assembly and due to the inherent nature of operation performed by the engine, the engine is subjected to vibrations. Accordingly, the support structure supporting the engine should stably support the engine and should be able to isolate the engine vibrations. Further, the engine is a delicate component and is required to be isolated from detrimental conditions such as road shocks that may be transmitted from the wheels to the engine via the frame structure of the two-wheeler and that can be dangerous for the engine.
The engine hanger is a support structure for supporting the engine at one end and is mounted on the frame structure of the two-wheeler vehicle and acts as an isolating arrangement for isolating the frame structure from the engine. The engine hanger provides stable support to the engine and also prevents road shocks from getting transmitted to the engine via the wheels. The engine hanger is generally mounted and supported on a cross member extending between a

pair of longitudinal frame members. However, such a configuration provides only a single point support. Further, most of the engine hangers are made of metallic material; as such the engine hangers are liable to fail prematurely if subjected to vibrations and shocks arising from the inappropriately supported engine. Further, such an arrangement requires a cross member to be mounted between the longitudinal tubular elements of the frame structure, wherein the cross member centrally supports the engine hanger. Further, the use of cross members for supporting the engine hanger increases the overall weight and cost of the frame assembly.
There is thus felt a need to provide an engine hanger that effectively and efficiently isolates the engine from the road shocks. Further, there is a need to improve the engine hanger that provides stable support to the engine and also prevents road shocks from getting transmitted to the engine. Furthermore, there is felt a need to eliminate the drawbacks associated with the one point conventional support arrangement, of the conventional engine hanger in which a cross member is required to be mounted between the structural elements of the frame structure for facilitating mounting and supporting of the engine hanger. Still, there is a need for an engine hanger that is simple in construction, economical and effective. Further, there is a need for an engine hanger that is reliable and that can be easily retrofitted to a conventional two wheeler without requiring much modification.
OBJECTS
Some of the objects of the present disclosure aimed to ameliorate one or more problems of the prior art or to at least provide a useful alternative are described herein below:

An object of the present disclosure is to provide an engine hanger system that stably supports the engine and also prevents road shocks from getting transmitted to the engine via the wheels.
Another object of the present disclosure is to provide an engine hanger system that can withstand the engine vibrations and isolate rest of the vehicle from these vibrations.
Yet another object of the present disclosure is to provide an engine hanger system that allows substantially linear motion of the rear shock absorber of a two wheeler.
Further object of the present disclosure is to provide an engine hanger system supported by a pair of stopper bushes disposed at either side thereof, thereby restricting motion of the engine in the operative vertical direction.
One more object of the present disclosure is to provide an engine hanger system that reduces stress on side tubes of the frame structure of a two wheeler that supports the engine hanger system.
An additional object of the present disclosure is to provide a cost effective engine hanger system.
Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

SUMMARY
An engine hanger system for supporting an engine of a vehicle is disclosed in accordance with an embodiment of the present disclosure. The engine hanger includes a pair of mounting brackets, a pair of stopper brackets, a first bar, a second bar and at least one supporting member. Each mounting bracket is secured to one of a pair of spaced apart tubular frame members of a chassis of the vehicle. The pair of stopper brackets is functionally coupled to either one of the chassis and the engine hanger system and is disposed there between, each stopper bracket receives a stopper bush and isolates the engine hanger system from chassis vibration and chassis and vehicle system from engine vibration. The first bar is supported by and between the mounting brackets, thereby providing multi point support to the engine hanger system, the first bar is further functionally coupled to the stopper bushes for isolating said engine hanger system from chassis vibration and chassis and vehicle system from engine vibration. The second bar is supported over the chassis and supports the engine and isolates the chassis system from engine vibration and engine hanger system from chassis vibration. The at least one supporting member is disposed between the first bar and the second bar and supports the engine thereon.
Typically, each stopper bracket of the pair of stopper brackets is secured to either one of opposing faces of the mounting brackets and further receives a stopper bush secured to the first bar for isolating the engine hanger system from chassis vibration.
Alternatively, each stopper bracket of the pair of stopper brackets is secured to the first bar and further receives a stopper bush secured to the chassis for

isolating the engine hanger system from chassis vibration and chassis system from engine vibration.
In accordance with yet another embodiment, each stopper bracket of the pair of stopper brackets is secured to a cross member of the chassis and further receives a stopper bush secured to an extension member extending from the first bar for isolating the engine hanger system from chassis vibration and chassis system from engine vibration.
Generally, the engine hanger system further includes a first nut and bolt arrangement for securing and supporting the first bar between the mounting brackets.
Similarly, the engine hanger system includes a second nut and bolt arrangement for securing and supporting the engine over the second bar.
Typically, the second bar is at least partially filled with rubber material.
Preferably, the second bar is filled with rubber material.
Generally, the first bar and the second bar are parallel to each other.
Alternatively, the first bar and the second bar are inclined with respect to each other in X-Z plane.
Typically, each of the at least one supporting members is secured to the first bar and the second bar by welding.
Generally, each of the at least one supporting members is formed by folding a single metallic plate.
Alternatively, each of the at least one supporting members is formed by welding a plurality of plates.

Typically, the engine hanger system further includes a pair of slicker brackets secured to the at least one supporting member for preventing lateral motion of the engine mounted on the engine hanger system beyond the permissible limit.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
The engine hanger system of the present disclosure will now be described with the help of accompanying drawings, in which:
FIGURE 1 illustrates a general schematic representation of an engine hanger system mounted between tube elements of a frame structure/chassis of a two wheeler in accordance with an embodiment of the present disclosure;
FIGURE 2 illustrates a schematic representation of an engine hanger system in accordance with the embodiment shown in FIGURE 1 in which the engine hanger system with stopper bushes secured thereto is supported between a pair of stopper brackets that are welded to corresponding mounting brackets such that the stopper bushes secured to the engine hanger are received in the stopper brackets welded to the mounting brackets;
FIGURE 3 illustrates a schematic representation of an engine hanger system in accordance with yet another embodiment of the present disclosure, wherein a pair of stopper brackets are secured to the engine hanger system and a pair of stopper bushes secured to the chassis are received inside the stopper brackets;
FIGURE 4 illustrates a side view of the engine hanger system of FIGURE 3;
FIGURE 5 illustrates a schematic representation of an engine hanger system in accordance with yet another embodiment of the present disclosure, wherein a

pair of stopper brackets are secured to a cross member of the chassis of the vehicle and each stopper bracket further receives a stopper bush secured to an extension member extending from the first bar for isolating the engine hanger system from chassis vibration;
FIGURE 6 illustrates another view of the engine hanger system of FIGURE 5;
FIGURE 7a illustrates a schematic representation of a portion of the engine hanger system of FIGURE 5 and FIGURE 6 in a dis-assembled configuration, wherein the extension members extending from the first bar are shown without stopper bushes; and
FIGURE 7b illustrates a schematic representation of the pair of stopper brackets secured to the cross member of the chassis of the vehicle, wherein the stopper brackets receive stopper bushes secured to extension members extending from the first bar.
DETAILED DISCRETION OF THE ACCOMPANYING DRAWINGS
A preferred embodiment will now be described in detail with reference to the accompanying drawings. The preferred embodiment does not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
The embodiment herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiment in the following description. Description of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiment herein. The examples used herein are intended merely to facilitate an

understanding of ways in which the embodiment herein may be practiced and to further enable those of skill in the art to practice the embodiment herein. Accordingly, the example should not be construed as limiting the scope of the embodiment herein.
The following description of the specific embodiment will so fully reveal the general nature of the embodiment herein that others can, by applying current knowledge, readily modify and / or adapt for various applications, such specific embodiments without departing from the generic concept, and therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiment. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiment herein has been described in terms of the preferred embodiment, those skilled in the art will recognize that the embodiment herein can be practiced with modification within the spirit and scope of the embodiment as described herein.
An engine hanger system is a support structure for supporting an engine and is mounted on the frame structure of a two-wheeler vehicle. The engine hanger system provides stable support to the engine. The engine hanger system is generally mounted and supported on a cross member extending between a pair of frame members. However, such a configuration provides single point support to the engine hanger system and is an unstable configuration that fails to stably support the engine and withstand engine vibration. Generally, the engine hangers are made of a metal such as iron and are required to be suitable supported to withstand engine vibrations and shocks and also isolates rest of the vehicle from engine vibrations.

The present disclosure envisages an engine hanger system in accordance with an embodiment that provides stable support to the engine and also prevents road shocks from getting transmitted to the engine via the wheels. More specifically, the engine hanger system in accordance with the present disclosure is so mounted between the pair of tubular frame members that the engine hanger system is suitably supported at the ends of a hanging bar of the engine hanger system, thereby facilitating two point supporting of the engine hanger system rather than a single point supporting as is in case of the conventional engine hanger. The two-point support provided by the engine hanger system of the present disclosure is a more stable than the single point support provided by the conventional engine hanger. Further, such a configuration of the engine hanger system reduces overall length of the bar of the engine hanger.
In accordance with an embodiment of the present disclosure, the engine hanger system with a plurality of stopper bushes secured thereto is supported between a pair of stopper brackets that are welded to corresponding mounting brackets such that the stopper bushes secured to the engine hanger system are received in the corresponding stopper brackets welded to the mounting brackets. In accordance with another embodiment of the present disclosure, the engine hanger system with the stopper brackets secured thereto is supported between a pair of stopper bushes secured to the frame structure such that the stopper brackets secured to the engine hanger system receives the stopper bushes secured to the frame structure.
The engine hanger system of the present disclosure will now be explained with reference to FIGURE 1 to FIGURE 4 with the key components being generally referenced by numerals as illustrated.

The engine hanger system 100 In accordance with an embodiment of the present disclosure typically includes a pair of mounting brackets 102, a pair of stopper brackets 110, a pair of stopper bushes 112, a first bar 104 also referred to as first hanging bar 104, a second bar 106 also referred to as second hanging bar 106, a first fitting arrangement, particularly a first nut and bolt arrangement 116 (not illustrated in Figures), a second fitting arrangement, particularly, a second nut and bolt arrangement 118, at least one pair of supporting members 108, a pair of slicker brackets 114 . The term slicker bracket in accordance with the present disclosure is used for the means secured to the at least one supporting member disposed between the first bar and the second bar that prevent lateral motion of the engine mounted on the engine hanger system.
As illustrated in FIGURE 1 and FIGURE 2, the mounting brackets 102 also referred to as engine hanger mounting brackets 102 are mounted on the corresponding frame members 12 of the pair of tubular frame members of the frame structure 10. In accordance with an embodiment, each mounting bracket of the pair of the mounting brackets 102 includes a corresponding stopper bracket of the pair of stopper brackets 110 secured thereto, that in turn receives and supports a stopper bush secured to the first bar 104 of the engine hanger system 100.
Each stopper bush of the pair of stopper bushes 112 is secured to the first bar 104 and the first bar 104 is connected to the second bar 106 by means of the pair of supporting members 108. More specifically, the first bar 104 and the second bar 106 are connected typically by welding the ends of two supporting members 108 to the first bar 104 and the second bar 106. One end of each supporting members 108 is welded to the first bar 104 and other end is welded to the second bar 106. Each of the supporting members 108 is typically made of a single metallic plate folded to give a desired shape. The first bar 104 and the

second bar 106 are arranged at a certain angle in X-Z plane while they are parallel in X-Y plane. The angle difference between the first bar 104 and the
■3 0
second bar 106 varies between 4 to 7 in X-Z plane. The first bar 104 and the second bar 106 may have different outer diameter and may have different thickness.
The second bar 106 is either fully or partially filled by a rubber material typically made up of a mixture of latex and natural rubber with a thickness of 4mm to 5mm. Further, the second bar 106 includes the second fitting arrangement 118 that may be a nut and bolt arrangement. The second fitting arrangement 118 is used for mounting the engine of the vehicle onto the engine hanger system 100.
The first bar 104 also includes first fitting arrangement 116 also referred to as first nut and bolt arrangement, 116 ( not illustrated in the Figures) that is used for mounting the engine hanger system 100 onto the frame structure of the two- wheeler, particularly to the mounting brackets 102 that is in turn is secured to the frame structure by welding. The first fitting arrangement 116 may be a nut and bolt arrangement. However, the present disclosure is not limited to any particular arrangement used for securing the engine hanger system 100 to the frame structure.
In accordance with another embodiment of the present disclosure as illustrated in FIGURE 3 and FIGURE 4, the engine hanger system 200 in accordance with an embodiment of the present disclosure typically includes a second bar 206, a first fitting arrangement 218, a pair of supporting members 208, a pair of slicker brackets 214, a first bar 204, and a second fitting arrangement 216, a pair of stopper brackets 210 typically welded to the first bar 204, a pair of stopper bushes 212.

The first bar 204 of the engine hanger system 200 includes a pair of stopper brackets 210 secured thereto, that in turn receives and supports corresponding stopper bushes 212 that are secured to the frame structure of the two-wheeler vehicle. FIGURE 3 illustrates a schematic representation of an engine hanger system 200 in which the engine hanger system with the stopper brackets 210 secured thereto is supported between a pair of stopper bushes 212 secured to the first bar 204 such that the stopper brackets 210 secured to the engine hanger system receives the stopper bushes 212 secured to the frame structure. In accordance with another embodiment, the engine hanger system with the stopper brackets 210 secured thereto is supported between a pair of stopper bushes 212 secured to the chassis such that the stopper brackets 210 secured to the engine hanger system receives the stopper bushes 212 secured to the chassis. FIGURE 4 illustrates a side view of the engine hanger system 200.
FIGURE 5 illustrates a schematic representation of an engine hanger system 300 in accordance with yet another embodiment of the present disclosure, wherein a pair of stopper brackets 310 are secured to a cross member 350 of the chassis of the vehicle and each stopper bracket 310 further receives a stopper bush (not illustrated in Figure 5) secured to an extension member 340 extending from the first bar 304 for isolating the engine hanger system 300 from chassis vibration. The first bar 304 is spaced apart from the second bar 306 and is connected to the second bar 306 by supporting members 308, the second bar 306 supports the engine.
FIGURE 6 illustrates another view of the engine hanger system 300. FIGURE 7a illustrates a schematic representation of a portion of the engine hanger system 300 in a dis-assembled configuration, wherein the extension members 340 extending from the first bar are shown without stopper bushes. FIGURE 7b illustrates a schematic representation of the pair of stopper brackets 310 secured

to the cross member 350 of the chassis of the vehicle, wherein the stopper brackets 310 receive stopper bushes 312(not illustrated) secured to extension members 340 extending from the first hanging bar 304. The first bar 304 is supported between mounting brackets 302 that in turn are secured to the frame structure by welding.
TECHNICAL ADVANCEMENTS AND ECONOMIC SIGNIFICANCE
The technical advancements offered by the present disclosure include the realization of:
> an engine hanger system that stably supports the engine and also prevents road shocks from getting transmitted to the engine.;
> an engine hanger system that can isolate the vehicle from engine vibration;
> an engine hanger system that allows full linear motion of the rear shock absorber of a two wheeler;
> an engine hanger system supported by a plurality of stopper bushes provided at either sides thereof, restricting motion of the engine in the operative vertical direction;
> an engine hanger system mounting bracket which can firmly hold the stopper bracket and reduce stress on side tubes of the frame structure of a two wheeler; and
> a cost effective engine hanger system.

Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression "at least" or "at least one" suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.
The foregoing description of the specific embodiment will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiment without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiment. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiment herein have been described in terms of preferred embodiment, those skilled in the art will recognize that the embodiment herein can be practiced with modification within the spirit and scope of the embodiment as described herein.

We Claim:
1. An engine hanger system for supporting an engine of a vehicle, said
engine hanger comprising:
• a pair of mounting brackets, each mounting bracket secured to one of a pair of spaced apart tubular frame members of a chassis of said vehicle;
• a pair of stopper brackets functionally coupled to either one of said chassis and said engine hanger system and disposed there between, each stopper bracket adapted to receive a stopper bush and isolate said engine hanger system from chassis vibration and chassis and vehicle system from engine vibration;
• a first bar supported by and between said mounting brackets, thereby providing multi point support to said engine hanger system, said first bar further functionally coupled to said stopper bushes for isolating said engine hanger system from chassis vibration and chassis and vehicle system from engine vibration;
t a second bar supported over said chassis and adapted to support said engine and isolate said chassis system from engine vibration and engine hanger system from chassis vibration; and
• at least one supporting member disposed between said first bar and
said second bar and adapted to support said engine thereon.
2. The engine hanger system as claimed in claim 1, wherein each stopper bracket of said pair of stopper brackets is adapted to be secured to either one of opposing faces of said mounting brackets and being further adapted to receive a stopper bush secured to said first bar for isolating said engine hanger system from chassis vibration.
3. The engine hanger system as claimed in claim 1, wherein each stopper bracket of said pair of stopper brackets is secured to said first bar and

being further adapted to receive a stopper bush secured to said chassis for isolating said engine hanger system from chassis vibration and chassis system from engine vibration.
4. The engine hanger system as claimed in claim I, wherein each stopper bracket of said pair of stopper brackets is secured to a cross member of said chassis and being further adapted to receive a stopper bush secured to an extension member extending from said first bar for isolating said engine hanger system from chassis vibration—and chassis system from engine vibration
5. The engine hanger system as claimed in claim 1, further comprising a first nut and bolt arrangement for securing and supporting said first bar between said mounting brackets.
6. The engine hanger system as claimed in claim 1, further comprising a second nut and bolt arrangement for securing and supporting said engine over said second bar.
7. The engine hanger system as claimed in claim 1, wherein said second bar is at least partially filled with rubber material.
8. The engine hanger system as claimed in claim 1, wherein said second bar is filled with rubber material.
9. The engine hanger system as claimed in claim 1, wherein said first bar and said second bar are parallel to each other.
10.The engine hanger system as claimed in claim 1, wherein said first bar
and said second bar are inclined with respect to each other in X-Z plane 1 l.The engine hanger system as claimed in claim 1, wherein each of said at
least one supporting members is secured to said first bar and said second
bar by welding. 12.The engine hanger system as claimed in claim 1, wherein each of said at
least one supporting members is formed by folding a single metallic plate.

13. The engine hanger system as claimed in claim 1, wherein each of said at least one supporting members is formed by welding a plurality of plates.
14.The engine hanger system as claimed in claim 1, further comprising a pair of slicker brackets secured to said at least one supporting member and adapted to prevent lateral motion of said engine mounted on said engine hanger system beyond the permissible limit.