FORM 2
THE PATENTS ACT, 1970
[39 of 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10 and Rule 13]
TITLE: “A SPLASHER FOR LUBRICATION OF A ROTARY SYSTEM AND A SYSTEM THEREOF”
Name and Address of the Applicant: TATA MOTORS LIMITED, of Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
Nationality: INDIAN
The following specification particularly describes the nature of the invention and the manner in which it is to be performed.

TECHNICAL FIELD
Present disclosure, in general, relates to field of automobile engineering. Particularly, but not exclusively, the present disclosure relates to a splasher for lubrication of a rotary system and a system thereof.
BACKGROUND
Lubrication of rotary systems such as automobile transmission, impellers and motors are essential to avoid wear and tear of mating components within the rotary systems. In general, the rotary system are lubricated via a splash mechanism. As an example, in an automobile transmission system, power from a crankshaft of an engine is transmitted to an input shaft consisting a first set of gears mating with a second set of gears mounted on a counter shaft to receive power from the input shaft. Further, the counter shaft may be rotatably coupled to an output shaft to transfer rotational motion from the counter shaft to the transmission system. Furthermore, the automobile transmission system may include a plurality of synchronous gears, each synchronous gear mounted between at least two gears of the first set of gears. A synchronous gear is a type of gear utilized to enable easy transition between gears. In general, at least a portion of the second set of gears are in contact with lubricants such as oil within an oil pan of the rotary system. During rotation of the countershaft, the second set of gears may splash the lubricant from the oil pan within the rotary system and thereby lubricate various parts of the rotary system.
Typically, in conventional transmission of a vehicle, certain portions of the first set of gears/synchronous gears or gears on the output shaft may not be lubricated since the second set of gears are not mounted throughout the length of the counter shaft to enable sufficient lubrication of the transmission system. In such cases, wear and tear of the gears in the transmission system occurs resulting in increased maintenance cost and lower efficiency of the transmission system. Further, in cases where synchronous gears are provided, a shifter sleeve may toggle between two synchronous gears on the input shaft for easy transition between gears. The challenge associated with solving such problem relate to a lack of space near the counter shaft to accommodate an auxiliary lubrication system. Furthermore, such space constraint increases due to toggling motion of the shifter sleeve. Consequently, any space between the shifter sleeve and an adjacent synchronous gear near the counter shaft is unusable.

Additionally, introducing an auxiliary lubrication system may increase the size of the gearbox thereby increasing the weight of the transmission system.
The present disclosure is directed to overcome one or more limitations stated above. The background section of the present disclosure should not be considered as a limitation of the present disclosure.
The drawbacks/difficulties/disadvantages/limitations of the conventional techniques explained in the background section are just for exemplary purpose and the disclosure would never limit its scope only such limitations. A person skilled in the art would understand that this disclosure and below mentioned description may also solve other problems or overcome the other drawbacks/disadvantages of the conventional arts which are not explicitly captured above.
SUMMARY OF THE DISCLOSURE
One or more shortcomings of the conventional design are overcome by a system as claimed and additional advantages are provided through the provision of such system as claimed in the present disclosure.
Additional features and advantages are realized through the design of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
In one non-limiting embodiment of the disclosure, a splasher for lubrication of a rotary system. The splasher consists of a body adapted to be accommodated on a shaft of the rotary system. The body is defined with a first end and a second end. The first end of the body is defined with a first locking pattern and the second end is defined with a second locking pattern which is complementary to the first locking pattern to connect the first end and the second end and arrest axial and radial degree of freedom of the body. Further, the splasher includes a plurality of fins extending outwardly from an outer surface of the body. Each of the plurality of fins are configured to convey a lubricant within the rotary system.
In an embodiment of the present disclosure, the splasher consists of at least one key extending inwards from the body and configured to mate a complementary key way provisioned on the shaft of the rotary system to restrict degrees of freedom of the splasher in rotational direction relative to the shaft of the rotary system.

In an embodiment of the present disclosure, the first locking pattern includes a plurality of protrusions extending perpendicular from the first end towards the second end. Each of the plurality of protrusions are defining a locking arm.
In an embodiment of the present disclosure, the second locking pattern includes a cavity to accommodate the plurality of protrusions of the first locking pattern and restrict degrees of freedom of the first end and second end of the body in axial direction relative to the shaft.
In an embodiment of the present disclosure, the first locking pattern includes a plurality of coupling members extending perpendicular from the first end towards the second end.
In an embodiment of the present disclosure, the second locking pattern includes a plurality of counter coupling members extending perpendicular from the second end and parallel to a plane of the coupling members towards the first end.
In an embodiment of the present disclosure, at least one of the plurality of coupling members are configured to mate with at least one of the plurality of counter coupling members to restrict degrees of freedom of the first end and second of the body in the radial direction relative to the shaft.
In one non-limiting embodiment of the disclosure, a gear lubrication system for a vehicle is disclosed. The system consists of an input shaft consisting of a plurality of first set of gears. Further, the system includes a counter shaft consisting a plurality of second set of gears configured to mesh with the first set of gears. Furthermore, the system consists of a plurality of synchronous gears disposed on the input shaft and configured allow easy transition between gears. Additionally, the system consists of a splasher for gear lubrication. The splasher consists of a body adapted to be accommodated on the countershaft of the gear lubrication system. The body is defined with a first end and a second end. The first end of the body is defined with a first locking pattern and the second end is defined with a second locking pattern which is complementary to the first locking pattern to connect the first end and the second end and arrest axial and radial degree of freedom of the body. Further, the system includes a plurality of fins extending outwardly from an outer surface of the body. Each of the plurality of fins are configured to convey a lubricant within the gear lubrication system.

It is to be understood that the aspects and embodiments of the disclosure described above may be used in combination with each other. Several of the aspects and embodiments may be combined to form a further embodiment of the disclosure.
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 THE ACCOMPANYING FIGURES
The novel features and characteristic of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
Fig. 1 is an isometric view of a splasher consisting of a body, a first locking pattern, a second locking pattern and a plurality of fins, in accordance with an embodiment of the present disclosure.
Fig. 2A-2C are perspective views of a splasher for lubrication of a rotary system, in accordance with an embodiment of the present disclosure.
Fig. 3 is a front view of a gear lubrication system for a vehicle along with the splasher mounted on a countershaft of a power transmission system, in accordance with an embodiment of the present disclosure.
Fig. 4 is a perspective view of the gear lubrication system for a vehicle along with the splasher, in accordance with an embodiment of the present disclosure.
Fig. 5 is a sectional view of the splasher adapted to be accommodated on a counter shaft of the power transmission system, in accordance with an embodiment of the present disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily 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
The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which form the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that the conception and specific embodiments disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent processes do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, and designed in a wide variety of different configurations, all of which are explicitly contemplated and make part of this disclosure.
The terms “comprises”, “comprising”, or any other variations thereof used in the specification, are intended to cover a non-exclusive inclusion, such that the system comprises a list of features/elements or steps does not include only those features/elements, but may include other features and elements not expressly listed or inherent to such setup or structure. In other words, one or more features/elements in a system proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system thereof. Also, the terms like “at least one” and “one or more” may be used interchangeably or in combination throughout the description.
Embodiments of the present disclosure relate to a splasher for lubrication of a rotary system and a system thereof. The splasher may be mounted on shaft of a gear box. The splasher consists of a body with a first end and a second end. The first end of the body is defining a first

locking pattern while the second end of the body defines a second locking pattern. The first end and second end are configured to lock axial and radial direction of movement of the splasher upon connecting the two ends. The splasher may be used to lubricate hard-to-reach gears such as synchronous gears and rotary elements by retrofitting the splasher onto existing shafts.
Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals will be used to refer to the same or like parts. Embodiments of the disclosure are described in the following paragraphs with reference to Figs. 1 to 5, the same element or elements which have same functions are indicated by the same reference signs.
Fig. 1 illustrates a splasher (100) for lubrication of a rotary system (200) by a splashing mechanism. The splasher (100) may be a device mounted on a rotating element such as a shaft to lubricate various components of the rotary system (200). The splasher (100) may include a body (10) adapted to be accommodated on the shaft of the rotary system (200). The body (10) of the splasher (100) may be defined with a stiffness and may be made of plastic materials such as but not limited to Polyphthalamide (PPA). The body (10) may be substantially cylindrical and defining an inner diameter comparable to an outer diameter of the shaft. Further, the body (10) may be defined with a first end (20) and a second end (30) about an axis (X-X) [Best seen in Fig. 2B] perpendicular to the radius of the splasher (100) and along a circumferential surface of the splasher (100).
Referring again to Fig. 1, the first end (20) of the splasher (100) may be defined with a first locking pattern (25). The first locking pattern (25) may include a plurality of protrusions (25-A) extending perpendicular from the first end (20) and towards the second end (30). The plurality of protrusions (25-A) may be defining a locking arm consisting of an elbow towards a free end of the plurality of protrusions (25-A). Further, the first locking pattern (25) may include a plurality of coupling members (25-B) extending from the first end (20) towards the second end (30). In an embodiment, the splasher (100) may be defining a thickness along a radial direction. The plurality of coupling members (25-B) may be defining a thickness lesser than the total thickness of the coupling members (25-B). In an embodiment, the plurality of coupling members (25-B) may be extending alternatively from an outer surface of the splasher (100) and an inner surface of the splasher (100) towards the second end (30).

Now considering Fig. 1 again, the second end (30) of the splasher (100) may be defined with a second locking pattern (35) complementary to the first locking pattern (25). The second locking pattern (35) may be defined with a cavity (35-A) to accommodate the plurality of protrusions (25-A) of the first locking pattern (25). The cavity (35-A) may be defined with an insertion portion to allow for insertion of the plurality of protrusions (25-A). Further, the cavity (35-A) may be defined with a locking portion to snap lock the locking arm consisting of the elbow. The snap locking of the plurality of projections from the first end (20) with the cavity (35-A) of the second end (30) may prevent axial movement of the first end (20) and the second end (30) of the splasher (100) relative to the shaft about the axis (X-X). Further, the second locking pattern (35) includes a plurality of counter coupling members (35-B) extending perpendicular from the second end (30) of the splasher (100) and parallel to a plane of coupling members (25-B) towards the first end (20). In an embodiment, the plurality of coupling members (25-B) are configured to mate with at least one of the plurality of counter coupling members (35-B) to restrict movement of the first end (20) and the second end (30) of the splasher (100) in the radial direction and perpendicular to the axis (X-X) relative to the shaft. In an embodiment, the plurality of counter coupling members (35-B) are defining a thickness lesser than the thickness of splasher (100) such that total thickness of the coupling members (25-B) and counter coupling members (35-B) mating each other is equal to the thickness of the splasher (100). The first locking pattern (25) of the first end (20) and the second locking pattern (35) of the second end (30) are configured to connect the first end (20) and the second end (30) of the body (10) to arrest axial and radial degree of freedom of the body (10). Further, the splasher (100) includes at least one key (40) [Best seen in Fig. 2A] extending inwards from the inner surface of the body (10) of the splasher (100). In an embodiment, the key (40) may be configured to mate a key way defined on the shaft of the rotary system (200) to restrict rotational movement of the splasher (100) relative to the shaft. The mating of the key (40) with key way restricts degrees of freedom of rotation in rotational direction of the body (10) relative to the shaft on which the splasher (100) is mounted . Further, the splasher (100) consists of a plurality of fins (60) extending outwardly from the outer surface of the body (10). Each of the plurality of fins (60) may be configured to convey a lubricant within the rotary system (200) by a splash mechanism. Fig. 2A to 2C are representative of the perspective view of the splasher in a locked condition or a mated condition of the first end and second end of the body (10).
Fig. 3 is illustrative of a gear lubrication system (200) consisting of an input shaft (110) connectable to a crankshaft of an engine. The input shaft (110) may include a plurality of first

set of gears (115) rigidly mounted along a length of the input shaft (110) and configured to rotate along with the rotation of the input shaft (110). Further, the system (200) may include a counter shaft (120) which includes a plurality of second set of gears (125) rigidly mounted along a length of the counter shaft (120) and configured to mesh with the first set of gears (115). Furthermore, the system (200) comprises a plurality of synchronous gears (130) disposed on the input shaft (110) and configured to allow easy transition between gears. The system (200) may be disposed within a housing consisting of an oil pan. The oil pan may be proximal to the counter shaft (120) of the system (200) such that at least a portion of the second set of gears (125) are partially immersed within the oil pan. In an embodiment, the oil in the oil pan may be filled up to half the diameter of the counter shaft. During operation of the input shaft (110), the second set of gears (125) in rotatable coupling with the first set of gears (115) are configured to rotate and splash the oil within the housing and thereby lubricate the first set of gears (115), the second set of gears (125) and the plurality of synchronous gears (130). In an embodiment, the counter shaft (120) may be rotatably coupled to an output shaft to transfer rotational motion from the counter shaft (120) to the transmission system. The splasher (100) may be connectable to a portion of the counter shaft (120) proximal to the output shaft and proximal to at least one synchronous gear on at least one of input shaft (110) or output shaft. Further, the splasher (100) may be partially immersed in the oil pan and during rotation of the counter shaft (120), the fins (60) of the splasher may agitate the oil in the oil pan. Such agitation of the oil due to rapid rotation of the splasher (100) may result in splashing of the oil within the housing resulting in lubrication of at least some of the first set of gears (115), at least some of the second set of gears (125) and at least some of the synchronous gears (130). In an embodiment, the splasher (100) may be configured to lubricate a plurality of synchronous gears (130) positioned proximal to the output shaft of the transmission system. In an embodiment the splasher (100) may be configured to lubricate at least one synchronous gear closest to the output shaft. Fig. 4 illustrates a perspective view of the system (200) consisting a splasher (100). Fig. 4 is an example for mounting the splasher (100) on a counter shaft (120) of a transmission of a vehicle.
Fig. 5 illustrates a sectional view of the system including the splasher (100). As seen from the figure, due to the space constraint between the counter shaft (120) and the synchronous gears (130), lubrication of the synchronous gears (130) would be difficult. The splasher (100) mounted on the counter shaft (120) may enable lubrication of the synchronous gears (130) proximal to the splasher (100) by the splashing mechanism. Further, mounting the splasher

(100) along the counter shaft (120) such that the key (40) may be mating with the key way may also result in accommodating the splasher (100) within the space available between the input shaft (110) and the counter shaft (120). Such configuration may also assist in maintaining the compactness of the rotary system (200).
The splasher (100) may be fitted onto a shaft of rotary system (200) to improve or enable lubrication of the rotary system (200). Further, the splasher (100) may also include a split type configuration to allow multiple locking arms and cavities. Furthermore, the splasher (100) may be retrofittable onto a grove on the counter shaft (120) and thereby achieve optimal lubrication of rotational components of the rotary system (200). Additionally, the device may be fitted onto a shaft of the impeller turbines, motors and other rotary system (200) to lubricate rotary components of such rotary system (200).
EQUIVALENTS
With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to 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 typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite

articles used to introduce claim recitations. 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, 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 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 one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

Referral numerals:

Referral Numeral Description
200 Rotary system
100 Splasher
10 Body
20 First end
25 First locking pattern
25-A Protrusions
25-B Coupling member
30 Second end
35 Second locking pattern
35-A Cavity
35-B Counter coupling member
40 Key
60 Fins
110 Input shaft
120 counter shaft
115 First set of gears
125 Second set of gears
130 Synchronous gears

We Claim:
1. A splasher (100) for lubrication of a rotary system (200), the splasher (100) comprising:
a body (10) adapted to be accommodated on a shaft of the rotary system (200), the body (10) defined with a first end (20) and a second end (30),
wherein, the first end (20) is defined with a first locking pattern (25) and the second end (30) is defined with a second locking pattern (35) complementary to the first locking pattern (25) to connect the first end (20) and the second end (30) and arrest axial and radial degree of freedom between the first end (20) and second end (30) of the body relative to the shaft;
a plurality of fins (60) extending outwardly from an outer surface of the body (10), each of the plurality of fins (60) being configured to convey a lubricant within the rotary system (200).
2. The splasher (100) as claimed in claim 1 comprises at least one key (40) extending inwards from the body (10) and configured to mate a complementary key way provisioned on the shaft of the rotary system (200) to restrict degrees of freedom of the body (10) in rotational direction relative to the shaft of the rotary system (200).
3. The splasher (100) as claimed in claim 1, wherein the first locking pattern (25) comprises a plurality of protrusions (25-A) extending perpendicular from the first end (20) towards the second end (30), each of the plurality of protrusions (25-A) defining a locking arm.
4. The splasher (100) as claimed in claim 1, wherein the second locking pattern (35) comprises a cavity (35-A) to accommodate the plurality of protrusions (25-A) of the first locking pattern (25) and restrict degrees of freedom of the first end (20) and second end (30) of the body (10) in axial direction relative to the shaft.
5. The splasher (100) as claimed in claim 1, wherein the first locking pattern (25) comprises a plurality of coupling members (25-B) extending perpendicular from the first end (20) towards the second end (30).
6. The splasher (100) as claimed in claim 1, wherein the second locking pattern (35) comprises a plurality of counter coupling members (35-B) extending perpendicular

from the second end (30) and parallel to a plane of the coupling members (25-B) towards the first end (20).
7. The splasher (100) as claimed in claims 5 and 6, wherein at least one of the plurality of coupling members (25-B) are configured to mate with at least one of the plurality of counter coupling members (35-B) to restrict degrees of freedom of the first end (20) and second end (30) of the body (10) in the radial direction relative to the shaft.
8. A gear lubrication system for a vehicle comprising:
an input shaft (110) comprising a plurality of first set of gears (115); a counter shaft (120) comprising a plurality of second set of gears (125) configured to mesh with the first set of gears;
a plurality of synchronous gears (130) disposed on the input shaft (110) and configured allow easy transition between gears;
a splasher (100) for gear lubrication, the splasher (100) comprising:
a body (10) adapted to be accommodated on the countershaft (120) of the gear lubrication system, the body (10) defined with a first end (20) and a second end (30),
wherein, the first end (20) is defined with a first locking pattern (25) and the second end (30) is defined with a second locking pattern (35) complementary to the first locking pattern (25) to connect the first end (20) and the second end (30) and arrest axial and radial degree of freedom between the first end (20) and second end (30) of the body (10) relative to the shaft;
a plurality of fins (60) extending outwardly from an outer surface of the body (10), each of the plurality of fins (60) being configured to convey a lubricant within the gear lubrication system.
9. The gear lubrication system as claimed in claim 8 comprises at least one key (40) extending inwards from the body (10) and configured to mate a complementary key way provisioned on the shaft of the gear lubrication system to restrict degrees of freedom of the splasher (100) in rotational direction relative to the shaft of the gear lubrication system.
10. The gear lubrication system as claimed in claim 8, wherein the first locking pattern (25) comprises a plurality of protrusions (25-A) extending perpendicular from the first end

(20) towards the second end (30), each of the plurality of protrusions (25-A) defining a locking arm.
11. The gear lubrication system as claimed in claim 8, wherein the second locking pattern (35) comprises a cavity (35-A) to accommodate the plurality of protrusions (25-A) of the first locking pattern (25) and restrict degrees of freedom of the first end (20) and second end (30) of the body (10) in axial direction relative to the shaft.
12. The gear lubrication system as claimed in claim 8, wherein the first locking pattern (25) comprises a plurality of coupling members (25-B) extending perpendicular from the first end (20) towards the second end (30).
13. The gear lubrication system as claimed in claim 8, wherein the second locking pattern (35) comprises a plurality of counter coupling members (35-B) extending perpendicular from the second end (30) and parallel to a plane of the coupling members (25-B) towards the first end (20).
14. The gear lubrication system as claimed in claims 12 and 13, wherein at least one of the plurality of coupling members (25-B) are configured to mate with at least one of the plurality of counter coupling members (35-B) to restrict degrees of freedom of the first end (20) and second end (30) of the body (10) in the radial direction relative to the shaft.