Description:FIELD
The present disclosure relates to a field of fuel injection system.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
Conventional fuel system setups often involve gear systems or direct drive mechanisms connected to the engine camshaft. However, implementing such methods can require significant changes to the overall engine and vehicle architecture. This can be a challenge, especially when trying to optimize space and address packaging constraints. In these traditional setups, the timing chain system is not utilized. Instead, the fuel system is typically linked to the engine camshaft through standard mechanical connections, without the incorporation of a chain and sprocket mechanism.
Further, the traditional fuel system housing assemblies may take up a considerable amount of space and can be difficult to integrate seamlessly into the engine and vehicle configuration. This is because the components are not configured to work together in a cohesive manner, potentially increasing the number of parts and the complexity of the assembly process. The conventional arrangement could not simplify maintenance procedures. Access to the fuel system components may be more complicated, making it difficult to perform inspections, repairs, or replacements when necessary. Existing fuel systems demand substantial changes to both the engine and vehicle architecture. These alterations, in turn, lead to a more direct requirement for extensive modifications to the overall design of the engine.
There is, therefore felt a need for an arrangement and method for mounting a fuel injection system on an engine that alleviates the aforementioned drawbacks.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present disclosure is to provide an arrangement and method for mounting a fuel injection system on an engine.
Another object of the present disclosure is to provide an arrangement that facilitates ease of assembly and servicing of the components.
Yet another object of the present disclosure is to provide an arrangement that is compact and allows for a more efficient use of space.
Still yet another object of the present disclosure is to provide an arrangement that reduces the number of parts and the complexity of the assembly process.
Another object of the present disclosure is to provide an arrangement that facilitates ease of maintenance making it easier to perform inspections, repairs, or replacements.
Yet another object of the present disclosure is to provide an arrangement that eliminates the need for extensive modifications to the engine.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
The present disclosure envisages an arrangement for mounting a fuel injection system on an engine. The engine includes a cylinder block, the arrangement comprises a housing, configured to be mounted on the cylinder block; the housing, configured with a first aperture leading to a first passage and a second aperture leading to a second passage positioned orthogonally to each other; a pump camshaft configured to be received within the first aperture and extend longitudinally along the first passage, the pump camshaft defined by a shaft having an operative inserted end and an operative outer end, the operative outer end of the pump camshaft configured to be rotated in relation to the movement of the crankshaft of the engine; a set of grooves configured on the operative outer end of the pump camshaft; a fuel pump having a follower, the follower configured to be received through the second passage of the second aperture, to abut on a cam of the pump camshaft, the follower configured to linearly oscillate in tandem with the rotation of the pump camshaft to actuate the fuel pump; a timing plate configured to be mounted on an outer end of the first aperture to enclose the pump camshaft therein. The timing plate is characterized by a set of protrusions configured to be nested in the grooves to facilitate synchronized movement of the follower of the fuel pump with the pump camshaft such that in an operative configuration of the arrangement the valve timing of the fuel pump is synchronized with the reciprocating motion of at least one of pistons from top dead center TDC.
In an embodiment, the housing has a plurality of first lobes configured thereon, each of the first lobes having a plurality of first holes configured thereon, wherein the timing plate having a plurality of second lobes, each of the second lobes having a plurality of second holes configured thereon complementary to the first holes to facilitate mounting of the timing plate on the housing.
In an embodiment, the arrangement includes a pump sprocket mounted on the operative inserted end of the pump camshaft, the pump sprocket configured to enable transfer of power from the crankshaft of the engine to the fuel pump at a predetermined drive ratio.
In an embodiment, the arrangement includes a back plate configured to be mounted on the housing, the back plate having a third set of lobes complementary to the first lobes of the housing to facilitate mounting of the back plate on the housing, wherein the back plate having a first set of mounting provisions configured thereon.
In an embodiment, the arrangement includes a fuel control unit configured with a second set of mounting provisions complementary to the first set of mounting provisions to facilitate attachment of the fuel control unit with the back plate.
In an embodiment, the set of grooves has a depth ranging between 5.5 mm to 8 mm,
In an embodiment, the set of grooves are configured to be spaced apart from each other at an angle ranging between 90° to 130°.
In an embodiment, an axis G of the set of grooves is configured to be spaced apart from a follower axis F at an angle ranging between 55° to 60°.
In an embodiment, the axis G of the set of grooves is configured to be spaced apart from cam lobes at an angle ranging between 60° to 63°.
In an embodiment, an axis of the follower is configured to be spaced apart from an axis of the piston P at an angle ranging between 15° to 18°.
In an embodiment, the arrangement includes a locking pin configured to arrest the movement of the follower.
Further, the present disclosure also envisages a method for mounting a fuel injection system on the engine, the method comprises the steps of:
• providing a housing, the housing having a first aperture leading to a first passage and a second aperture leading to a second passage;
• providing a pump camshaft, the pump camshaft includes a set of grooves, an operative inserted end, and an operative outer end;
• inserting the pump camshaft through the first aperture of the first passage of a housing;
• providing a fuel pump, the fuel pump includes a follower,
• installing the fuel pump with the follower through the second passage of the second aperture of the housing;
• providing a timing plate, the timing plate includes a set of protrusions:
• aligning the protrusions with the grooves;
• mounting the timing plate to the housing by using a plurality of fasteners;
• synchronizing the movement of the follower of the fuel pump with the pump camshaft, thereby synching the valve timing of the fuel pump with the reciprocating motion of at least one piston from TDC; and
• mounting the timing plate to the housing.
In an embodiment, the method further includes:
• aligning a plurality of second lobes having a plurality of second holes to the first lobes of the housing,
• mounting the second lobes with the first lobes of the housing by using fasteners on the cylinder block at a predetermined position with a gasket therebetween;
• removing the timing plate after aligning the protrusions with the set of grooves and synchronizing the movement of the follower of the fuel pump with the pump camshaft and thereby synching the valve timing of the fuel pump with the reciprocating motion of at least one piston from TDC;
• providing a back plate, the back plate includes a first set of mounting provisions;
• providing a fuel control unit, the fuel control unit includes a second set of mounting provisions complementary to the first set of mounting provisions;
• attaching the back plate with the fuel control unit with the help of the first set of mounting provisions and the second set of mounting provisions; and
• installing timing chains by engaging the pump sprocket with the pump camshaft.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWING
An arrangement and a method for mounting a fuel injection system on an engine, of the present disclosure will now be described with the help of the accompanying drawing in which:
FIGURE 1A illustrates an isometric view of an engine with a housing arrangement fitted with a timing plate in accordance with the present disclosure;
FIGURE 1B illustrates a front view of an engine in accordance with the present disclosure;
FIGURE 1C illustrates an isometric view of an engine with the housing arrangement fitted with a back plate with a fuel control unit in accordance with the present disclosure;
FIGURE 2 illustrates an exploded view of a fuel system housing a fuel injection system in accordance with the present disclosure;
FIGURE 3 illustrates a side view of an engine with the housing arrangement fitted with the back plate with the fuel control unit of Figure 1B;
FIGURE 4 illustrates a sectional view of the fuel system housing in accordance with the present disclosure;
FIGURES 5A-5C illustrate different isometric views of the timing plate in accordance with the present disclosure;
FIGURES 6A-6B illustrate different isometric views of a pump camshaft in accordance with the present disclosure;
FIGURE 7 illustrates a back view of the housing of Figure 2; and
FIGURES 8A-8B illustrate a rear of a camshaft mounted on the housing at a predetermined angle with respect to the piston in accordance with the present disclosure.
LIST OF REFERENCE NUMERALS
1000 – engine
100 – cylinder block
102 – engine camshaft sprockets
103 – engine crankshaft sprocket
104A, 104B – pair of timing chain
200 – Mounting arrangement
205 – housing
207 – first lobes
208 – second lobes
209 – third lobes
210 – pump camshaft
211 – grooves
212 – first passage
213 – second passage
214 – shaft
215 – timing plate
216 – protrusions
217 – operative outer end of the pump camshaft
218 – inserted end of the pump camshaft
220 – first aperture
225 – second aperture
226 – locking pin
227 – dummy plug
230 – fuel pump
235 – cam
240 – follower
245 – pump sprocket
250 – back plate
251 – first set of mounting provisions
255 – oil supply line
260 – fuel supply pipe
270 – fuel control unit
271 – second set of mounting provisions
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open-ended transitional phrases and therefore specify the presence of stated features, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, elements, components, and/or groups thereof.
Conventional fuel system setups often rely on gear systems or direct drive mechanisms connected to the engine camshaft, necessitating significant alterations to engine and vehicle architecture. However, this approach poses challenges in optimizing space and addressing packaging constraints. These setups typically lack integration with timing chain systems and require complex mechanical connections, resulting in bulky housing assemblies that complicate maintenance procedures. Accessing fuel system components for inspections, repairs, or replacements becomes cumbersome, adding to the complexity of assembly processes. Moreover, integrating traditional fuel systems into engine and vehicle configuration demands extensive modifications, further complicating overall assembly requirements.
A preferred embodiment of an arrangement 200 for mounting a fuel injection system on an engine 1000 of the present disclosure will now be described with reference to Figure 1A through Figure 8B. The preferred embodiment does not limit the scope and ambit of the present disclosure.
In an embodiment, the arrangement 200 is for a four-cylinder engine.
Figure 1A illustrates a view of the engine 1000 with the mounting arrangement 200 fitted with a timing plate 215 in accordance with the present disclosure and Figure 1B illustrates a front view of an engine in accordance with the present disclosure. The engine 1000 includes a cylinder block 100, a camshaft (not shown) with a pair of camshaft sprockets 102, a crankshaft (not shown) with a crankshaft sprocket 103, and a timing chain 104A, 104B contributing to its synchronized operation of the engine 1000. The piston (not shown) reciprocates within each cylinder of the cylinder block 100 that is driven by the crankshaft housed in the engine block. This crankshaft includes the crankshaft sprocket 103 which is intricately connected to the camshaft’s sprocket 102 via the timing chain 104A, 104B, ensuring precise timing of intake and exhaust valve operations. Furthermore, a fuel pump 230 is synchronized with the engine's rotation through the timing chain 104A, linked to a pump sprocket 245. This arrangement optimizes fuel delivery to the injectors, promoting efficient combustion. As the crankshaft rotates, it drives both the camshafts and the fuel pump, ensuring that the valve timing and fuel delivery remain precisely aligned with the engine's cycle. This synchronization is essential for the engine's smooth and reliable operation, enhancing its overall performance and efficiency.
The arrangement 200 for mounting a fuel injection system on the engine 1000 comprises a housing 205, a pump camshaft 210, a set of grooves 211, the fuel pump 230 having a follower 240, and the timing plate 215.
The housing 205 is configured to be mounted on the engine's cylinder block 100 as shown in Figure 1C and Figure 2. The housing 205 includes a first aperture 220 extending to a first passage 212 and a second aperture 225 extending to a second passage 213 as shown in Figure 4. The first aperture 220 and the second aperture 225 are positioned orthogonally to each other.
In an embodiment, the housing 205 is configured with a plurality of oil drill holes.
In an embodiment, the fuel pump 230 is an oil lubricated pump.
In an embodiment, the oil drill holes are configured to facilitate the flow of oil through the housing 205 to facilitate the lubrication of the fuel pump, the pump camshaft 210, and the follower 240.
In an embodiment, dummy plugs 227 are configured to close the oil drill holes for lubrication and to arrest the leakage of oil.
The pump camshaft 210 is defined by a shaft 214 having an operative inserted end 218 and an operative outer end 217. The shaft 214 has at least one cam profile 235 thereon. The set of grooves 211 are configured on the operative outer end 217 of the pump camshaft 210 as shown in Figure 2. Further, the pump camshaft 210 is configured to be received within the first aperture 220 of the housing 205 and extends longitudinally along the first passage 212 as shown in Figure 4. The pump sprocket 245 is mounted on the operative inserted end 218 of the pump camshaft 210. The pump camshaft 210 is configured to be rotated in relation to the movement of the crankshaft. The pump sprocket 245 is configured to be in communication with the crankshaft sprocket 103 via the timing chain 104A to enable the transfer of power from the crankshaft of the engine 1000 to the fuel pump 230 at a predetermined drive ratio.
The fuel pump 230 with the follower 240 is configured to be received through the second passage 213 of the housing 205, and the follower 240 abuts on the cam 235 of the pump camshaft 210 in an operative configuration, as shown in Figure 4. The fuel pump is connected to the housing 205 with a set of fasteners and a gasket positioned therebetween. The follower 240 linearly oscillates in tandem with the rotation of the pump camshaft 210 to actuate the fuel pump 230.
In an embodiment, the fuel pump 230 is in fluid connection with a fuel control unit 270 via a fuel supply pipe 260. The fuel supply pipe 260 facilitates the transfer of fuel from the fuel control unit 270 to the fuel pump 230 as shown in Figure 3.
In an embodiment, the housing is in fluid connection with the cylinder block 100 via an oil supply line 255. The oil supply line 255 facilitates the transfer of the oil from the cylinder block 100 to the fuel pump 230 as shown in Figure 3.
The timing plate 215 is configured to be mounted on the outer end of the first aperture 220 to enclose the pump camshaft 210 therein. The timing plate 215 includes a set of protrusions 216, configured to be nested in the grooves 211. This facilitates synchronized movement of the follower 240 of the fuel pump 230 with the pump camshaft 210 such that in an operative configuration of the arrangement 200 the valve timing of the fuel pump 230 is synchronized with the reciprocating motion of at least one of the pistons from top dead center TDC as shown in Figures 8A and 8B.
In an embodiment, the housing 205 has a plurality of first lobes 207 configured thereon as shown in Figure 2. Each of the first lobes 207 has a plurality of first holes configured thereon.
In an embodiment, the timing plate 215 has a plurality of second lobes 208. Each of the second lobes 208 has a plurality of second holes configured thereon complementary to the first holes to facilitate the mounting of the timing plate 215 on the housing 205.
In an embodiment, a back plate 250 is configured to be mounted on the housing 205 when the timing plate 215 is removed. The back plate 250 has a third set of lobes 209 configured thereon. Each of the third set of lobes 209 are complementary to each of the first lobes 207 of the housing 205 to facilitate the mounting of the back plate 250 on the housing 205.
In an embodiment, the back plate 250 has a first set of mounting provisions 251 configured thereon.
In an embodiment, the fuel control unit 270 is configured with a second set of mounting provisions 271 complementary to the first set of mounting provisions 251 to facilitate attachment of the fuel control unit 270 with the back plate 250.
In an embodiment, cam lobes have a lobe lift ranging between 5.5 mm to 8 mm. In another embodiment, the cam lobes are asymmetric.
In an embodiment, each of the grooves are configured to be spaced apart at an angle ranging between 90° to 130° as shown in Figures 8A and 8B.
In an embodiment, an axis of the groove G is configured to be spaced apart from a follower axis F at an angle ranging between 55° to 60° as shown in Figures 8A and 8B.
In an embodiment, the axis of grooves G is configured to be spaced apart from the cam lobes at an angle ranging between 60° to 63°.
In an embodiment, an axis of the follower F is configured to be spaced apart from an axis of the piston P at an angle ranging between 15° to 18°.
In an embodiment, a locking pin 226 is configured to arrest the movement of the follower 240.
In an embodiment, the housing 205 is configured with lubrication provision to provide lubrication to the pump camshaft 210 and other components of the fuel system.
In an embodiment, a gasket is placed between the housing 205 and the cylinder block 100 to prevent oil leakage.
Further, the present disclosure also envisages a method for mounting a fuel injection system 200 on the engine 1000, the method comprises the following steps:
• providing a housing 205, the housing having a first aperture 220 leading to a first passage 212 and a second aperture 225 leading to a second passage 213;
• providing a pump camshaft 210, the pump camshaft 210 includes a set of grooves 211, an operative inserted end 215, and an operative outer end 217;
• inserting the pump camshaft 210 through the first aperture 220 of the first passage 212 of the housing 205;
• providing a fuel pump 230, the fuel pump 230 includes a follower 240,
• installing the fuel pump 230 with the follower 240 through the second passage 213 of the second aperture 225 of the housing 205;
• providing a timing plate 215, the timing plate includes a set of protrusions 216:
• aligning the protrusions 216 with the grooves 211; and
• mounting the timing plate 215 to the housing 205 by using a plurality of fasteners;
• synchronizing the movement of the follower 240 of the fuel pump 230 with the pump camshaft 210, thereby synching the valve timing of the fuel pump 230 with the reciprocating motion of at least one piston from TDC;
• mounting the timing plate 215 to the housing 205;
• aligning a plurality of second lobes 208 having a plurality of second holes to the first lobes 207 of the housing 205;
• mounting the second lobes 208 with the first lobes 207 of the housing 205 by using fasteners on the cylinder block 100 at a predetermined position with a gasket therebetween;
• removing the timing plate 215 after aligning the protrusions 216 with the set of grooves 211 and synchronizing the movement of the follower 240 of the fuel pump 230 with the pump camshaft 210 and thereby synching the valve timing of the fuel pump 230 with the reciprocating motion of at least one piston from TDC;
• providing a back plate 250, the back plate 250 includes a first set of mounting provisions 251;
• providing a fuel control unit 270, the fuel control unit 270 includes a second set of mounting provisions 271 complementary to the first set of mounting provisions 251;
• attaching the back plate 250 with the fuel control unit 270 with the help of the first set of mounting provisions 251 and the second set of mounting provisions 271; and
• installing the timing chains 104A, 104B by engaging the pump sprocket 245 with the pump camshaft 210.
The foregoing description of the embodiments has been provided for purposes of illustration and is not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
TECHNICAL ADVANCEMENTS
The present disclosure described hereinabove has several technical advantages including, but not limited to, an arrangement and method for mounting a fuel injection system on an engine, that:
• eliminates the need for extensive modifications to the engine;
• facilitates ease of maintenance making it easier to perform inspections, repairs, or replacements;
• reduces the number of parts and the complexity of the assembly process;
• is compact and allows for more efficient use of space; and
• is easy to assemble and service the components.
The foregoing disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description.
Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments 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 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 embodiments. 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 embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
Any discussion of devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation. , Claims:WE CLAIM:
1. An arrangement (200) for mounting a fuel injection system on an engine (1000), wherein the engine (1000) includes a cylinder block (100), said arrangement (200) comprising:
• a housing (205) configured to be mounted on the cylinder block (100), said housing (205) configured with a first aperture (220) leading to a first passage (212) and a second aperture (225) leading to a second passage (213) positioned orthogonally to each other;
• a pump camshaft (210) configured to be received within said first aperture (220) and extend longitudinally along said first passage (212), said pump camshaft (210) defined by a shaft (214) having an operative inserted end (218) and an operative outer end (217), said operative outer end (217) of said pump camshaft (210) configured to be rotated in relation to the movement of the crankshaft of the engine (1000);
• a set of grooves (211) configured on said operative outer end (217) of said pump camshaft (210);
• a fuel pump (230) having a follower (240), said follower (240) configured to be received through said second passage (213) of said second aperture (225) to abut on a cam (235) of said pump camshaft (210), said follower (240) configured to linearly oscillate in tandem with the rotation of said pump camshaft (210) to actuate said fuel pump (230); and
• a timing plate (215) configured to be mounted on an outer end of said first aperture (220) to enclose said pump camshaft (210) therein,
wherein said timing plate (215) is characterized by a set of protrusions (216) configured to be nested in said grooves (211) to facilitate synchronized movement of said follower (240) of said fuel pump (230) with said pump camshaft (210) such that in an operative configuration of said arrangement (200) the valve timing of said fuel pump (230) is synchronized with the reciprocating motion of at least one piston from top dead center (TDC).
2. The arrangement (200) as claimed in claim 1, wherein said housing (205) has a plurality of first lobes (207) configured thereon, each of said first lobes (207) having a plurality of first holes configured thereon, wherein said timing plate (215) having a plurality of second lobes (208), each of said second lobes (208) having a plurality of second holes configured thereon complementary to said first holes to facilitate mounting of said timing plate (215) on said housing (205).
3. The arrangement (200) as claimed in claim 1, wherein said arrangement (200) includes a pump sprocket (245) mounted on said operative inserted end (218) of said pump camshaft (210), said pump sprocket (245) is configured to enable transfer of power from the crankshaft of the engine (1000) to said fuel pump (230) at a predetermined drive ratio.
4. The arrangement (200) as claimed in claim 1, wherein said arrangement (200) includes a back plate (250) configured to be mounted on said housing (205), said back plate (250) having a third set of lobes (209) complementary to said first lobes (207) of said housing (205) to facilitate mounting of said back plate (250) on said housing (205), wherein said back plate (250) having a first set of mounting provisions (251) configured thereon.
5. The arrangement (200) as claimed in claim 1, wherein said arrangement (200) includes a fuel control unit (270) configured with a second set of mounting provisions (271) complementary to said first set of mounting provisions (251) to facilitate attachment of said fuel control unit (270) with said back plate (250).
6. The arrangement (200) as claimed in claim 1, wherein said set of grooves (211) has a depth ranging between 5.5 mm to 8 mm,
7. The arrangement (200) as claimed in claim 1, wherein said set of grooves (211) are configured to be spaced apart from each other at an angle ranging between 90° to 130°.
8. The arrangement (200) as claimed in claim 1, wherein an axis (G) of said set of grooves (211) are configured to be spaced apart from a follower axis (F) at an angle ranging between 55° to 60°.
9. The arrangement (200) as claimed in claim 1, wherein said axis (G) of said set of grooves (211) is configured to be spaced apart from cam lobes at an angle ranging between 60° to 63°.
10. The arrangement (200) as claimed in claim 1, wherein an axis (F) of said follower (240) is configured to be spaced apart from an axis of the piston (P) at an angle ranging between 15° to 18°.
11. The arrangement (200) as claimed in claim 1, wherein said arrangement (200) includes a locking pin (226) configured to arrest the movement of said follower (240).
12. A method for mounting a fuel injection system (200) on the engine (1000), said method comprising the steps of:
• providing a housing (205), said housing having a first aperture (220) leading to a first passage (212) and a second aperture (225) leading to a second passage (213);
• providing a pump camshaft (210), said pump camshaft (210) includes a set of grooves (211), an operative inserted end (215), and an operative outer end (217);
• inserting said pump camshaft (210) through said first aperture (220) of said first passage (212) of said housing (205);
• providing a fuel pump (230), said fuel pump (230) includes a follower (240),
• installing said fuel pump (230) with said follower (240) through said second passage (213) of said second aperture (225) of said housing (205);
• providing a timing plate (215), said timing plate includes a set of protrusions (216):
• aligning said protrusions (216) with said grooves (211);
• mounting said timing plate (215) to said housing (205) by using a plurality of fasteners;
• synchronizing the movement of said follower (240) of said fuel pump (230) with said pump camshaft (210), thereby synching the valve timing of said fuel pump (230) with the reciprocating motion of at least one piston from TDC; and
• mounting said timing plate (215) to said housing (205).
13. The method as claimed in claim 12, wherein said method includes:
• aligning a plurality of second lobes (208) having a plurality of second holes to first lobes (207) of said housing (205),
• mounting said second lobes (208) with said first lobes (207) of said housing (205) by using one or more fasteners on the cylinder block (100) at a predetermined position with a gasket therebetween;
• removing said timing plate (215) after aligning said protrusions (216) with said set of grooves (211) and synchronizing the movement of said follower (240) of said fuel pump (230) with said pump camshaft (210) and thereby synching the valve timing of said fuel pump (230) with the reciprocating motion of at least one piston from TDC;
• providing a back plate (250), said back plate (250) includes a first set of mounting provisions (251);
• providing a fuel control unit (270), said fuel control unit (270) includes a second set of mounting provisions (271) complementary to said first set of mounting provisions (251);
• attaching said back plate (250) with said fuel control unit (270) with the help of said first set of mounting provisions (251) and said second set of mounting provisions (271); and
• installing said timing chains (104A, 104B) by engaging said pump sprocket (245) with said pump camshaft (210).

Dated this 08th day of March, 2024

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
OF R.K.DEWAN & CO.
AUTHORIZED AGENT OF APPLICANT

TO,
THE CONTROLLER OF PATENTS
THE PATENT OFFICE, AT CHENNAI