TECHNICAL FIELD

The present subject matter described herein, relates to mounting
structure to connect engine (i.e., Powertrain) to chassis. More particularly, the
present mounting structure provides a closed circuit for load transfer to avoid
bending of chassis due to engine (i.e., Powertrain) load.

BACKGROUND

Background description includes information that may be useful in
understanding the present invention. It is not an admission that any of the
10 information provided herein is prior art or relevant to the presently claimed
invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Generally, engine is mounted to chassis, specifically long member of
the vehicle to transfer load from the engine to body. To mount the engine with the
chassis, a centre mount with rubber bush is provided to damp the vibrations.
15 Engine mounting arrangement is different for front engine rear wheel drive and
front engine front wheel drive. Generally, the engine is mounted in vehicle engine
cabin that is covered by vehicle hood. Referring to figure 1A, 1B, 2, and 3, the
engine mount assembly includes vehicle chassis 100 and mounting structure 200
that is mounted on the vehicle chassis 100. The vehicle chassis 100 consists a
20 vehicle long member 101 where a bracket 102 is mounted on the vehicle long
member 101 projected forward to receive the mounting structure 200. The bracket
102 is in inclined hat shape profile having a hole to receive nut or stem from the
mounting structure 200. Conventional mounting structure 200 comprises an
engine side mounting bracket 201, a vehicle chassis side bracket 202 and a mount25
center 203 having a rubber bush. The mount center 203 connects the engine side
mounting bracket 201 and the vehicle chassis side bracket 202 through rubber
bush. The vehicle chassis side bracket 202 is mounted by means of bolt
mechanism on the vehicle long member 101 at bottom side and inclined towards
the mount center 203 to connect with the engine side mounting bracket 201.
3
Further, a stiffener or support bracket 204 is provided on the mount center 203
and projected towards the bracket 102 welded on the vehicle long member 101.
The stiffener bracket 204 is mounted on the bracket 102 by means of bolt
mechanism.
[0004] Referring to fig. 2, the engine transfers load along direction ‘5 X’ on the
mounting structure 200. The load follows path along direction X and reaches to
the vehicle long member 101. As shown in the fig. 2, the load is not cancelled or
nullify by any other opposite or counter load, therefore, the load distributes in the
vehicle long member and creates noise and vibrations. At the point of distribution
10 of load and the mount center 203, a cantilever beam 205 is formed which creates
weak zone for mounting and tends to create vibrations and further strength issues.
[0005] Technical problem in the existing engine mounting assembly are: In
existing technology or mounting structure, the engine side bracket 201 is complete
sheet metal bracket that is used to connect chassis frame to the engine which
15 deteriorate the NVH performance and create strength issue.
[0006] Another technical problem with existing structure is that the vehicle
chassis side bracket 202 connected to the vehicle long member 101 consists of the
mounter center 203 having a rubber part or rubber bush transfers dynamic load
through weld joint.
20 [0007] The existing stiffener bracket act as cantilever which does not provide
strength to the mounting structure. Due to the cantilever formation in between the
vehicle long member 101 and the mounting structure 200, the cantilever formation
transfers most of the load on a single point on the vehicle long member 101.
[0008] Another technical problem is that the engine mounting assembly is
25 difficult in existing technology due to matching of hole of the bracket 102 and the
stiffener bracket 204 is required for bolt tightening.
[0009] In order to solve the technical problems as mentioned above, various
engine mounting concepts that have been adopted by different manufactures to
meet the packaging of engine onto vehicle. However, the prime technical
4
objective while doing the packaging is to ensure sufficient clearance with body
while docking the engine from bottom during assembly. But more clearance can
lead to more overhang which further increases the bending stresses on chassis
frame. Therefore, an ideal concept can be achieved by reducing the overhang of
engine assembly from vehicle chassis considering the requirement of minimu5 m
docking clearance at the same time which is only possible by making the
Mounting Comp, Engine and its corresponding mounting on body as compact as
possible.
[0010] Therefore, there is a need for an engine mounting assembly that can
10 effectively provide reduced overhang of the engine, increased rigidity of the
bracket, better NVH performance of the assembly, reduced bending moment on
chassis.
OBJECTS OF THE DISCLOSURE
[0011] Some of the objects of the present disclosure, which at least one
15 embodiment herein satisfy, are listed herein below.
[0012] The principal object of the present invention is to provide an engine
mounting assembly with reduced overhang, increased rigidity, better NVH
performance, reduced bending moment on chassis.
[0013] Another object of the present invention is to provide an engine
20 mounting assembly having vehicle chassis with two brackets and a mounting
structure to mount engine with vehicle chassis.
[0014] Another object of the present invention is to provide a mounting
structure with sheet metal bracket and casting bracket mounted at different
location and takes care of the two different angle at which engine is placed in the
25 engine mounting assembly to improve NVH performance.
[0015] Another object of the present invention is to provide a closed loop or
circuit for distribution of load from engine to the vehicle chassis. Further, the
closed loop of loads nullifies the load by countering loads from opposite
directions.
5
[0016] Another object of the present invention is to provide a stiffener bracket
projecting in upward direction and bolted with a bracket provided in the vehicle
long member to provide better dynamic rigidity and to cater assembly tolerance to
avoid pre-stress in the rubber part of mount center.
[0017] These and other objects and advantages will become more apparen5 t
when reference is made to the following description and accompanying drawings.
SUMMARY
[0018] This summary is provided to introduce concepts related to an engine
mounting assembly to vehicle chassis. The concepts are further described below
10 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.
[0019] In an embodiment, the present disclosure relates to an engine mounting
assembly to mount an engine with vehicle chassis of a vehicle. The engine
15 mounting assembly comprises a vehicle chassis having a vehicle long member
and an engine mounting structure that connects the vehicle long member with the
engine. The engine mounting structure includes an engine side bracket connected
to an engine, a vehicle chassis side bracket connected with vehicle long member,
and a U shaped intermediate bracket provided to join the vehicle chassis side
20 bracket with the engine side bracket. The vehicle chassis side bracket comprising
a step shaped bracket welded on outer surface of a cylindrical mount center
structure at one end and a support bracket welded on the outer surface the
cylindrical mount center structure and the step shaped bracket. Further, a
rectangular box structure is welded on diametrically opposite outer surface to the
25 welded step shaped bracket of the cylindrical mount center structure.
[0020] In an aspect, the engine mounting structure further comprising a L
shaped stiffener bracket having a vertical portion and a horizontal portion, where
two arms projecting forward from sides of the vertical portion in direction of the
horizontal portion to engage with the rectangular box structure and an oval shaped
6
mounting hole is provided to engage with mounting hole of the rectangular box
structure.
[0021] In an aspect, a stud is provided on an upper surface of the horizontal
portion.
[0022] In an aspect, the vehicle chassis comprising a L shaped bracket welde5 d
on the vehicle long member, where horizontal member of the L shaped bracket is
welded on the vehicle long member and a horizontal member of the L shaped
bracket project in vertical height direction along vertical long member.
[0023] In an aspect, the vehicle chassis comprising an inclined hat shaped
10 bracket welded on the vertical member of the L shaped bracket and the vertical
long member, where the inclined hat shaped bracket define a mounting hole to
receive stud from the engine mounting structure.
[0024] In an aspect, the cylindrical mount center structure has a rubber bush
with a mounting hole to receive the U shaped intermediate bracket through a bolt.
15 [0025] In an aspect, the engine side bracket is casted bracket having a central
rib portion along a transverse line joining engine center and center of the
cylindrical mount center structure.
[0026] In another embodiment of the present subject matter relates to an
engine mounting structure to mount engine with vehicle chassis. The engine
20 mounting structure comprising an engine side bracket, a vehicle chassis side
bracket, and a U shaped intermediate bracket provided to join the vehicle chassis
side bracket with the engine side bracket. Wherein the vehicle chassis side bracket
comprising a step shaped bracket welded on outer surface of a cylindrical mount
center structure at one end and a support bracket welded on the outer surface the
25 cylindrical mount center structure and the step shaped bracket, and a rectangular
box structure welded on diametrically opposite outer surface to the welded step
shaped bracket of the cylindrical mount center structure.
[0027] In an aspect, the engine mounting structure further comprising a L
shaped stiffener bracket having a vertical portion and a horizontal portion, where
7
two arms projecting forward from sides of the vertical portion in direction of the
horizontal portion to engage with the rectangular box structure and an oval shaped
mounting hole is provided to engage with mounting hole of the rectangular box
structure.
[0028] Various objects, features, aspects, and advantages of the inventiv5 e
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 THE DRAWINGS
10 [0029] 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,
15 wherein:
[0030] Fig. 1A and 1B illustrate joint of mounting structure and vehicle
chassis as known;
[0031] Fig. 2 illustrates cross section view of joint of mounting structure and
vehicle chassis along AA line of fig. 1A and 1B;
20 [0032] Fig. 3 illustrate front view of mounting structure mounted on the
vehicle chassis as known;
[0033] Fig. 4A and 4B illustrates joint of mounting structure and vehicle
chassis, in accordance with an embodiment of the present subject matter;
[0034] Fig. 4C illustrates cross section view of joint of mounting structure and
25 vehicle chassis along BB line of fig.4A and 4B;
[0035] Fig. 5 illustrates front view of mounting structure with sheet metal
bracket mounted on vehicle chassis, in accordance with an embodiment of the
present subject matter;
8
[0036] Fig. 6 illustrates perspective view of the mounting structure, in
accordance with an embodiment of the present subject matter; and
[0037] Fig. 7 illustrates another view of the mounting structure with chassis
side bracket structure, in accordance with an embodiment of the present subject
matt5 er;
[0038] Fig. 8 illustrates exploded view of mounting structure with engine and
vehicle chassis, in accordance with an embodiment of the present subject matter;
and
[0039] Fig. 9 illustrates yet another view of the mounting structure with
10 reference to engine side and body side to show flow of load from engine to the
body, in accordance with an embodiment of the present subject matter.
[0040] The figures depict embodiments of the present subject matter for the
purposes of illustration only. A person skilled in the art will easily recognize from
the following description that alternative embodiments of the structures and
15 methods illustrated herein may be employed without departing from the principles
of the disclosure described herein
DETAILED DESCRIPTION
[0041] The detailed description of various exemplary embodiments of the
disclosure is described herein with reference to the accompanying drawings. It
20 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 scope of the present disclosure as defined by the appended
25 claims.
[0042] 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,
9
and embodiments of the present disclosure, as well as specific examples, are
intended to encompass equivalents thereof.
[0043] 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 th5 e
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
10 or addition of one or more other features, integers, steps, operations, elements,
components and/or groups thereof.
[0044] 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
15 sometimes be executed in the reverse order, depending upon the functionality/acts
involved.
[0045] In addition, the descriptions of "first", "second", 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
20 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.
[0046] Unless otherwise defined, all terms (including technical and scientific
terms) used herein have the same meaning as commonly understood by one of
25 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.
10
[0047] These and other advantages of the present subject matter would be
described in greater detail with reference to the following figures. It should be
noted that the description merely illustrates the principles of the present subject
matter. It will thus be appreciated that those skilled in the art will be able to devise
various arrangements that, although not explicitly described herein, embody 5 the
principles of the present subject matter and are included within its scope.
[0048] Main objective of the present invention is providing strength, avoid
stress on mounting structure, nullify the generated load and ease of assembly of
engine while docking process with the vehicle chassis.
10 [0049] The subject matter disclosed herein relates to an engine mounting
assembly of a vehicle. The engine mounting assembly mounts the engine with
vehicle chassis by an engine mounting structure. The present engine mounting
structure is design to cater all loads applied by the engine. The present engine
mounting structure nullifies the applied loads in close loop and provides strength
15 to the engine mounting structure. The present engine mounting structure consist
engine side bracket, vehicle chassis bracket and an intermediate bracket to
connect the engine side bracket and vehicle chassis bracket. With the present
engine mounting structure, the load from the engine follows a straight line
transverse path and diverted into two parts at the vehicle chassis side bracket
20 structure. The present engine mounting structure solves the technical problem of
high vibrations, overhanging of engine and difficult docking of the engine from
bottom during engine mounting assembly.
[0050] To this as shown in figure 4A, 4B, and 4C an engine mounting
assembly of vehicle is explained. In the present assembly, the engine mounting
25 structure 400 is mounted on vehicle chassis 300. The vehicle chassis 300
comprises a vehicle long member 301 that extend along vehicle length. On the
vehicle long member 301, the engine mounting structure 400 is mounted at one
end and other end of the engine mounting structure 400 is mounted on the engine.
In the engine mounting structure 400, loading point 600 lies on or inside closed
30 loop of load from the engine. The vehicle long member 301 provided with an L
11
shaped bracket 302 at upper surface. The L shaped bracket 302 define a horizontal
member 302a that extend in vehicle width direction and a vertical member 302b
that extend in vehicle height direction. The horizontal member 302a is welded on
the vehicle horizontal long member 301 and the vertical member 302b extends in
vehicle height direction along vehicle long member 301. Further, an inclined ha5 t
shaped bracket 303 is welded on the vertical member 302b of the L shaped
bracket 302 and the vertical long member 301 and project away from vertical
surface of the vehicle long member 301. The inclined hat shaped bracket 303
define a mounting hole 303a (shown in fig. 8) to receive the engine mounting
10 structure 400. The L shaped bracket 302 and the inclined hat shaped bracket 303
provide strength to the vehicle long member 301 and helps to form a close loop
for load generated.
[0051] As shown in fig. 4C, the engine mounting structure 400 and vehicle
chassis 300 with the L shaped bracket 302 and the inclined hat shaped bracket 303
15 forms the closed loop for generated load. The generated load travels a path as
indicated by arrow ‘Y’ from the engine and diverted into two parts at the loading
point that is mount center (explained in later figures) and travels to the vehicle
long member 301. In the present engine mounting assembly, the loading point 600
lies inside the closed loop formed by the engine mounting structure 400 and the
20 vehicle long member 301.
[0052] Referring to fig. 8, the engine mounting structure 400 connected with
the vehicle long member 301 of vehicle chassis 300 at one end and with the
engine 500 at other end. The engine mounting structure 400 comprises an engine
side bracket 401, a vehicle chassis side bracket 403 and a U shaped intermediate
25 bracket 402 that connects the engine side bracket 401 with the vehicle chassis side
bracket 403. The engine side bracket 401 is connected to the engine 500 and the
vehicle chassis side bracket 403 is connected with vehicle long member 301 via a
plurality of fasteners, such as bolt and nut.
[0053] Referring to fig. 7, the vehicle chassis side bracket 403 includes a step
30 shaped bracket 403a that is welded on outer surface of a cylindrical mount center
12
structure 403b at one end. A support bracket 403c is welded in between the outer
surface the cylindrical mount center structure 403b and the step shaped bracket
403a. The support bracket 403c provides strength to joint of the step shaped
bracket 403a and the cylindrical mount center structure 403b. As shown, a
rectangular box structure 403d is welded on diametrically opposite outer 5 surface
to the welded step shaped bracket 403a of the cylindrical mount center structure
403b to avoid overhanging of cantilever beam structure in between the vehicle
long member 301 and the engine mounting structure 400. The cylindrical mount
center structure 403b has a rubber bush with a mounting hole to receive the U
10 shaped intermediate bracket 402 through bolt 402b. The rectangular box structure
403d is vertically opposite to the step shaped bracket 403a to provide straight path
for follow of generated load. The rectangular box structure 403d has a mounting
hole 403e to receive a L shaped stiffener bracket 404 through a bolt as shown in
fig. 8.
15 [0054] Referring to figs. 6, 7, and 8 all together, the L shaped stiffener bracket
404 is mounted on the rectangular box structure 403d of the vehicle chassis side
bracket 403. The L shaped stiffener bracket 404 having a vertical portion 404a
and a horizontal portion 404b. Further, two arms 404ac, 404ad (as shown in fig. 7)
projecting forward from vertical sides 404aa, 404ab (404aa is shown in fig. 6 and
20 404ab shown in fig. 8) of the vertical portion 404a in direction of the horizontal
portion 404b to engage with the rectangular box structure 403d. The vertical
portion 404a has an oval shaped mounting hole 404c to engage with mounting
hole 403e (as shown in fig. 8) of the rectangular box structure 403d by a fastener
as shown in fig. 8. The two arms 404ac, 404ad embrace the rectangular box
25 structure 403d to restrict rotation of the L shaped stiffener bracket 404 while
tightening and torqueing the stud & nut. The distance between the two arms
404ac, 404ad is greater than width of the rectangular box structure 403d to
provide interference fit. The oval shaped mounting hole 404c provide tolerance
for mounting of the L shaped stiffener bracket 404 with the rectangular box
30 structure 403d. as shown in figure 8, a stud 404d is provided on an upper surface
404ba of the horizontal portion 404b to engage with mounting hole 303a (shown
13
in fig. 8) of the inclined hat shaped bracket 303 during assembly of the engine.
The stud 404d directs/guides the engine assembly for mounting. Further, the stud
404d receives the nut from upper side and removes all assembly difficulties.
[0055] Referring to fig. 5, 6 and 8 all together and interchangeably, the U
shaped intermediate bracket 402 is sheet metal bracket that mounted with th5 e
cylindrical mount center structure (403b) of the vehicle chassis side bracket 403
through a bolt 402b at open end. At the other end, the U shaped intermediate
bracket 402 is connected with the engine side bracket 401 through a plurality of
fasteners 402a as shown in fig. 5.
10 [0056] Referring to fig. 5, 6 and 8 all together and interchangeably, the engine
side bracket 401 is casted bracket having a central rib portion 401a that divides
the bracket into two portions. The engine side bracket 401 is mounted on the
engine 500 through a plurality of fasteners (as shown in fig. 8) at one end and
other end is connected to the U shaped intermediate bracket 402. Further, the
15 combination of sheet metal and cast metal improves stiffness of the engine
mounting structure that provides better NVH performance.
[0057] Referring to fig. 9, the present engine mounting structure 400 provides
a path for flow of generated load from engine to vehicle chassis as indicated by
900. The central rib portion 401a of the engine side bracket 401 is provided along
20 a transverse line 900 joining engine center and center of the cylindrical mount
center structure 403b. The central rib portion 401a does not allow diversion of
load from the engine 500 to the body or vehicle chassis to improve NVH
performance. The central rib portion 401a provided on the engine side bracket 401
which is in-line with the load transfer path from engine side to body side, passing
25 through the center of engine mount, in transverse direction.
[0058] Technical advantages of the present invention:
[0059] The present engine mounting structure consists of casting bracket
bolted on the engine, a U shaped intermediate sheet metal bracket connects
casting part to the vehicle chassis side bracket that is further connected to chassis
14
frame and a stiffener bracket, further the stiffener bracket bolted to a bracket
welded on body in white, thereby providing extra support, Furthermore, the
loading point (mount center) is lying on or inside the closed loop which makes
system more reliable, robust with better dynamic performance and improved
5 NVH and strength.
[0060] The present invention uses stiffener bracket which reduces overhang of
engine with chassis frame to provide the better dynamic rigidity. It also
accommodates the assembly tolerance to avoid pre-stress in the rubber part.
Furthermore, the stud on the top of stiffener bracket guides the powertrain during
10 docking thereby leading to easy assembly.
[0061] The present invention is related to the central rib provided on the
engine side bracket which is in-line with the load transfer path from engine side to
body side, passing through the center of engine mount in transverse direction.
[0062] It will be understood by those within the art that, in general, terms used
15 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
20 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
25 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 inventions 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
30 typically be interpreted to mean “at least one” or “one or more”); the same holds
15
true for the use of definite articles used to introduce claim recitations. In addition,
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, 5 ons, 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 a
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
10 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 a construction is intended in the sense one having
skill in the art would understand the convention (e.g., “a system having at least
15 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
20 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.”
[0063] While the foregoing describes various embodiments of the invention,
other and further embodiments of the invention may be devised without departing
25 from the basic scope thereof. The scope of the invention is determined by the
claims that follow. The invention 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.

We claim:

1. An engine mounting assembly of a vehicle, the engine mounting assembly
comprising:
an engine mounting structure (400) connected with a vehicle long
member (301) of vehicle chassis (300), the engine mounting stru5 cture
(400) comprising:
an engine side bracket (401) connected to an engine (500);
a vehicle chassis side bracket (403) connected with vehicle long
member (301); and
10 a U shaped intermediate bracket (402) provided to join the vehicle
chassis side bracket (403) with the engine side bracket (401),
wherein the vehicle chassis side bracket (403) comprising:
a step shaped bracket (403a) welded on outer surface of a
cylindrical mount center structure (403b) at one end and a support
15 bracket (403c) welded on the outer surface the cylindrical mount
center structure (403b) and the step shaped bracket (403a); and
a rectangular box structure (403d) welded on diametrically
opposite outer surface to the welded step shaped bracket (403a) of
the cylindrical mount center structure (403b).
20
2. The engine mounting assembly as claimed in claim 1, wherein the engine
mounting structure (400) further comprising a L shaped stiffener bracket
(404) having a vertical portion (404a) and a horizontal portion (404b),
where two arms (404ac, 404ad) projecting forward from sides (404aa,
25 404ab) of the vertical portion (404a) in direction of the horizontal portion
(404b) to engage with the rectangular box structure (403d) and an oval
shaped mounting hole (404c) is provided to engage with mounting hole
(403e) of the rectangular box structure (403d).
17
3. The engine mounting assembly as claimed in claim 2, wherein a stud
(404d) is provided on an upper surface (404ba) of the horizontal portion
(404b).
4. The engine mounting assembly as claimed in claim 1, wherein the vehicl5 e
chassis (300) comprising a L shaped bracket (302) welded on the vehicle
long member (301), where horizontal member (302a) of the L shaped
bracket (302) is welded on the vehicle long member (301) and a vertical
member (302b) of the L shaped bracket (302) project in vertical height
10 direction along vertical long member (301).
5. The engine mounting assembly as claimed in claim 4, wherein the vehicle
chassis (300) comprising an inclined hat shaped bracket (303) welded on
the vertical member (302b) of the L shaped bracket (302) and the vertical
15 long member (301), where the inclined hat shaped bracket (303) define a
mounting hole (303a) to receive stud (404d) from the engine mounting
structure (400).
6. The engine mounting assembly as claimed in claim 1, wherein the
20 cylindrical mount center structure (403b) has a rubber bush with a
mounting hole to receive the U shaped intermediate bracket (402) through
a bolt (402b).
7. The engine mounting assembly as claimed in claim 1, wherein the engine
25 side bracket (401) is casted bracket having a central rib portion (401a)
along a transverse line joining engine center and center of the cylindrical
mount center structure (403b).
18
8. An engine mounting structure (400) to mount engine (500) with vehicle
chassis (300), the engine mounting structure (400) comprising:
an engine side bracket (401);
a vehicle chassis side bracket (403); and
a U shaped intermediate bracket (402) provided to join the vehicl5 e
chassis side bracket (403) with the engine side bracket (401),
wherein the vehicle chassis side bracket (403) comprising:
a step shaped bracket (403a) welded on outer surface of a
cylindrical mount center structure (403b) at one end and a support
10 bracket (403c) welded on the outer surface the cylindrical mount
center structure (403b) and the step shaped bracket (403a); and
a rectangular box structure (403d) welded on diametrically
opposite outer surface to the welded step shaped bracket (403a) of
the cylindrical mount center structure (403b).
15
9. The engine mounting structure (400) as claimed in claim 8, wherein the
engine mounting structure (400) further comprising a L shaped stiffener
bracket (404) having a vertical portion (404a) and a horizontal portion
(404b), where two arms (404ac, 404ad) projecting forward from sides
20 (404aa, 404ab) of the vertical portion (404a) in direction of the horizontal
portion (404b) to engage with the rectangular box structure (403d) and an
oval shaped mounting hole (404c) is provided to engage with mounting
hole (403e) of the rectangular box structure (403d).
25 10. The engine mounting structure (400) as claimed in claim 8, wherein a stud
(404d) is provided on an upper surface (404ba) of the horizontal portion
(404b).
19
11. The engine mounting structure (400) as claimed in claim 8, wherein the
cylindrical mount center structure (403b) has a rubber bush with a
mounting hole to receive the U shaped intermediate bracket (402) through
a bolt (402b).
5
12. The engine mounting structure (400) as claimed in claim 8, wherein the
engine side bracket (401) is casted bracket having a central rib portion
(401a) along a transverse line joining engine center and center of the
cylindrical mount center structure (403b).