Claims:We claim:
1. An engine starting delay system (100) comprising:
a first relay (112) receiving an input voltage from an alternator of an engine when an ignition switch is operated to crank a starter of the engine, wherein the first relay (112) is to output a voltage after being built-up;
a second relay (122) receiving the voltage from the first relay (112) for a predetermined delay time to energize a relay coil (126) present in the second relay (122); and
a third relay (132) receiving the voltage from an output end (130) of the relay coil (126) when the relay coil (126) is energized, to allow increment in the revolution per minute (RPM) of an engine crankshaft.
2. The system (100) as claimed in claim 1, wherein one end (114) of the first relay (112) receives input voltage from the alternator and another end (118) of the first relay (112) is grounded.
3. The system (100) as claimed in claim 1, wherein the first relay (112) is to make an electrical connection with an input sensing point (120) of the second relay (122) through a first inter-relay switch (124).
4. The system (100) as claimed in claim 1, wherein the second relay (122) is configured as a delay circuit to output a voltage after elapse of the predetermined delay time from a time of receipt of the voltage from the first relay (112).
5. The system (100) as claimed in claim 1, wherein one end (128) of the relay coil (126) is grounded and another end (130) transfers the voltage to the third relay (132) through a second inter-relay switch (134).
6. The system (100) as claimed in claim 1, wherein the third relay (132) is configured as an RPM relay outputting the voltage to an RPM switch (138), to allow increment in the RPM of the engine crankshaft.
7. The system (100) as claimed in claim 1, wherein the predetermined delay time ranges from 30 seconds to 2 minutes.
8. The system (100) as claimed in claim 1, wherein when the ignition switch (108) is operated to crank the starter of the engine, the ignition switch (108) simultaneously supplies the voltage from a battery to the starter and the ignition coil.
9. The system (100) as claimed in claim 1, comprising a first fuse (116) disposed in relay connection line between the alternator and the first relay (112), and a second fuse (136) disposed in an ignition coil connection line between the ignition switch (108) and the second inter-relay switch (134).
10. The system (100) as claimed in claim 9, wherein the first fuse (116) is a 5-ampere fuse and the second fuse (136) is a 10-ampere fuse.
, Description:[0001] The present disclosure, in general, relates to systems mounted on a vehicle for delaying start of an engine mounted on the vehicle, and, more particularly, to an engine starting delay system for allowing pre-lubrication of engine components.
BACKGROUND
[0002] Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed subject matter, or that any publication specifically or implicitly referenced is prior art.
[0003] Machines, including construction, on-highway, and agriculture vehicles, have a main power source for moving the machine, powering a tool, or driving other operations. The main power source typically includes an internal combustion engine, such as a diesel engine, a petrol engine, a gaseous fuel-powered engine, or any other type of engine. Components of such engines are subjected to high loads to effect combustion and transmit power to driven components. Accordingly, proposer lubrication of the engine components is necessary to protect them from wear and tear caused by operating under high loads. However, it has been often observed that the engine components are exhausted before expected, even though they were properly installed, and the lubrication was performed as per guidelines of original equipment manufacturer (OEM).
[0004] Much wear and tear occur at engine starting condition. That is, when an engine is cold, the lubricant normally coating the engine components has typically seeped out of the galleys among these engine components. Thus, during ignition cranking, the engine components interact in an un-lubricated condition and suffer a relatively great amount of wear before adequate oil pressure and lubrication can be built up.
[0005] In view of the above, it will be apparent to the skilled artisan that there exists a need in the state of the art for an engine starting delay system for allowing proper pre-lubrication of engine components.
OBJECTS OF THE DISCLOSURE
[0006] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed hereinbelow.
[0007] It is a general object of the present disclosure to provide an engine starting delay system for allowing proper pre-lubrication of engine components.
[0008] It is another object of the present disclosure to provide an engine starting delay system having a delay module configured to output a connection permission signal after elapse of a predetermined delay time from a time.
[0009] It is another object of the present disclosure to provide an engine starting delay system which is configured to delay increase in revolution per minute (RPM) of engine crankshaft beyond idle RPM fixed for the engine crankshaft for a set period of time.
[0010] These and other objects and advantages will become more apparent when reference is made to the following description and accompanying drawings.
SUMMARY
[0011] This summary is provided to introduce concepts related to an engine starting delay system for allowing pre-lubricating of engine components. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0012] In an embodiment, the present disclosure relates to an engine starting delay system for allowing proper pre-lubrication of engine components. The engine starting delay system includes a first relay receiving an input voltage from an alternator of an engine when a manual ignition switch is operated to crank a starter of the engine, where the first relay is to output a voltage after a predetermined voltage is build-up in the first relay. The system further includes a second relay receiving the voltage from the first relay for a predetermined delay time to energize a relay coil present in the second relay; and a third relay receiving the voltage from an output end of the relay coil of the second relay when the relay coil is energized, so as to allow increment in the revolution per minute (RPM) of an engine crankshaft.
[0013] In an aspect, one end of the first relay receives input voltage from the alternator and another end of the first relay is grounded.
[0014] In an aspect, the first relay is to make an electrical connection with an input sensing point of the second relay through a first inter-relay switch.
[0015] In an aspect, the second relay is configured as a delay circuit to output a voltage after elapse of the predetermined delay time from a time of receipt of the voltage from the first relay.
[0016] In an aspect, one end of the relay coil is grounded, and another end transfers the voltage to the third relay through a second inter-relay switch.
[0017] In an aspect, the third relay is configured as an RPM relay outputting the voltage to an RPM switch, to allow increment in the RPM of the engine crankshaft.
[0018] In an aspect, the predetermined delay time ranges from 30 seconds to 2 minutes.
[0019] In an aspect, when the ignition switch is operated to crank the starter of the engine, the ignition switch simultaneously supplies the voltage from a battery to the starter and the ignition coil.
[0020] In an aspect, the system includes a first fuse disposed in relay connection line between the alternator and the first relay, and a second fuse disposed in ignition coil connection line between the ignition switch and the second inter-relay switch. In said aspect, the first fuse is a 5-ampere fuse, and the second fuse is a 10-ampere fuse.
[0021] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] 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, wherein:
[0023] FIG. 1 illustrates a circuit diagram of an engine starting delay system in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0024] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0025] It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0026] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
[0027] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0029] Embodiments explained herein pertain to an engine starting delay system for allowing proper pre-lubrication of engine components. Regardless of their specific construction, a diagram of the engine starting delay system 100 proposed in accordance with the present disclosure is shown in FIG. 1.
[0030] FIG. 1 shows a voltage output end 102 of a battery of a vehicle (not shown). The voltage output end 102 of the battery simultaneously supplies the voltage to an input end 104 of a starter (not shown) and an input end 106 of an ignition coil (not shown) of an engine (not shown), when a user manually operates an ignition switch 108 to crank the starter of the engine.
[0031] Once the ignition switch 108 is operated or actuated, an electrical impulse is also provided to initiate the rotation of a starter motor armature shaft (not shown) to drive the supplemental oil pump, thereby bringing oil pressure up to operational levels. Thereafter, supplemental oil pump communicates with the engine lubrication system and distributes oil under pressure through a plurality of conduits to the engine's crankshaft bearings, turbocharger unit, valve train assembly, pistons, filtering assembly, and other engine components requiring lubrication.
[0032] Simultaneously, an alternator (not shown) of the engine provides an its output end 110 an input voltage for a first relay 112. The first relay 112 receives the input voltage at its input end 114 through a first fuse 116. The first relay 112 is grounded at its end 118. In an aspect, the first fuse 116 is a 5-ampere fuse.
[0033] In an aspect, the first relay 112 is a sensing relay and is designed to output a voltage after a predetermined voltage is build-up in the first relay 112. Once the predetermined voltage is build-up in the first relay 112, the first relay 112 makes an electrical connection with an input sensing point 120 of a second relay 122 through a first inter-relay switch 124. Once the connection is established, the input sensing point 120 of the second relay 122 receives the voltage from the first relay 112 for a predetermined delay time to energize a relay coil 126 present in the second relay 122. In an aspect, the predetermined delay time ranges from 30 seconds to 2 minutes. Such delay facilitates the engine lubrication system with sufficient time to distribute the oil to the surfaces of the cylinders, pistons, crankshaft, and bearings come into contact with each other.
[0034] In an aspect, the second relay 122 is configured as a delay circuit to output a voltage after elapse of the predetermined delay time from a time of receipt of the voltage from the first relay 112 sensed by the sensing point 120 . After elapse of the predetermined delay time, the relay coil 126 is energized. In an aspect, one end 128 of the relay coil 126 is grounded and another end 130 transfers the voltage to a third relay 132 through a second inter-relay switch 134. In an aspect, the second inter-relay switch 134 is connected to the input end 106 through a second fuse 136. The second fuse 136 is disposed in an ignition coil connection line between the ignition switch 108 and the second inter-relay switch 134 mounted in the second inter-relay switch 122. The second fuse 136 is a 10-ampere fuse.
[0035] Once the relay coil 126 is energized, the third relay 132 receives the voltage from the end 106. The third relay 132 is configured as RPM relay outputting the voltage to an RPM switch 138, so as to allow increment in the RPM of the engine crankshaft.
[0036] Thus, with the implementation of the present disclosure, the system 100 having three relays 112, 122, 132 provides sufficient time to the lubrication system to lubricate various component of the engine before the user can increase the RPM of engine crankshaft beyond idle RPM fixed for the engine crankshaft.
[0037] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing 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.