CN103670580B - A kind of lubricating oil system of high-power diesel engine - Google Patents
A kind of lubricating oil system of high-power diesel engine Download PDFInfo
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- CN103670580B CN103670580B CN201310637768.5A CN201310637768A CN103670580B CN 103670580 B CN103670580 B CN 103670580B CN 201310637768 A CN201310637768 A CN 201310637768A CN 103670580 B CN103670580 B CN 103670580B
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Abstract
The invention provides a kind of lubricating oil system of high-power diesel engine, comprise oil pump, machine oil pressure-gradient control valve, machine oil centrifugal oil purifier, pressurized machine and pressurized machine filter cleaner and pressure regulator valve.Oil pump is connected with machine oil centrifugal oil purifier and communicates, pressurized machine to be connected with pressurized machine filter cleaner by pressure regulator valve and to communicate, oil pump first oil outlet tube in oil pump is connected with the machine oil pressure-gradient control valve main oil gallery entrance on machine oil pressure-gradient control valve and communicates, oil pump second oil outlet tube is connected with the machine oil pressure-gradient control valve auxiliary oil channel entrance on machine oil pressure-gradient control valve and communicates, and the machine oil pressure-gradient control valve on machine oil pressure-gradient control valve to cooling piston oil duct interface to be connected with diesel engine cooling piston oil duct and to communicate.Adopt the present invention can improve diesel engine lubricating oil from filtering ability, reduce System Computer oil consumption and the Stress control of whole lubricating oil system is more reliable, and make the overall structure of lubricating oil system more reasonable, compact, be conducive to the power character of guarantee diesel engine, Economy, reliability and durability.
Description
Technical field
The present invention relates to Diesel Engine Technique Field, especially relate to a kind of lubricating oil system of high-power diesel engine.
Background technique
The lubricating oil system of diesel engine is the important component part of diesel engine, the component of lubricating oil system to diesel engine play lubrication, heat conduction, cleaning, sealing, rust inhibition, the moving cell of diesel engine is made to obtain lubrication fully, thus minimizing frictional loss, alleviate parts wear, to ensure the power character of diesel engine, Economy, reliability and durability.
Existing diesel engine oil system is primarily of compositions such as oil pump and the assembling of turnover oil pipe, machine oil centrifugal oil purifier, pressurized machine filter cleaner, safety valve, gear lubrication piping, left and right pressurized machine lubricant pipe assembly, pressure regulator valve and machine oil pipelines.Its system is specifically arranged as follows: (1) oil pump is a constant volume gear-type oil pump, is driven by diesel engine crankshaft gear, is installed on the free end plate neutral position of diesel engine oil pan, as the power plant of whole lubricating oil system; (2) machine oil centrifugal oil purifier arranges two, is arranged on the crankcase peep hole position of forward end on the right of diesel engine side by side; (3) one, safety valve, is arranged on the free end plate upper left quarter of oil sump; (4) the lubricating pipe design of the pitman arm shaft in diesel engine cylinder cover and injection cam is at engine body exterior; (5) diesel engine cooling piston oil duct is arranged in the left and right sides in body, the machine oil entering left side cooling piston oil duct goes lubrication and cooling left column piston and cylinder liner, the machine oil entering right side cooling piston oil duct goes the right row piston of lubrication and cooling and cylinder liner, and the machine oil lubricated enters oil sump; (6) pressurized machine filter cleaner is two, is arranged in connecting box both sides, and one end of every platform pressurized machine filter cleaner connects diesel engine main oil gallery end, and the other end enters pressurized machine after connecting pressure regulator valve.Because machine oil centrifugal oil purifier only has two, poor from filtering ability to whole lubricating oil system; Safety valve is a kind of safety valve of cracking pressure value working method, is unfavorable for that diesel engine reduces consumption of lubricating oil; Because the lubricating pipe design of the pitman arm shaft in cylinder cap and injection cam is at engine body exterior, diesel engine lubricating oil system architecture is disperseed, not compact, take space outerpace; In addition, the filter precision of pressurized machine filter cleaner is wherein 25 microns, is also unfavorable for the lubrication of pressurized machine, reduces the working life of pressurized machine.
Summary of the invention
The technical problem to be solved in the present invention is: for prior art Problems existing, a kind of lubricating oil system of high-power diesel engine is provided, improve lubricating oil system from filtering ability, reduce the consumption of lubricating oil of diesel engine, and the system pressure of lubricating oil system controls more reliable, more compact structure.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of lubricating oil system of high-power diesel engine, comprise oil pump, machine oil pressure-gradient control valve, machine oil centrifugal oil purifier, pressurized machine and pressurized machine filter cleaner and pressure regulator valve, oil pump to be connected with machine oil centrifugal oil purifier by oil pump the 3rd oil outlet tube and to communicate, pressurized machine to be connected with pressurized machine filter cleaner by pressure regulator valve and to communicate, oil pump first oil outlet tube in oil pump is connected with the machine oil pressure-gradient control valve main oil gallery entrance on machine oil pressure-gradient control valve and communicates, and communicated to the main lubricating oil duct of main oil gallery interface and body by machine oil pressure-gradient control valve, oil pump second oil outlet tube in oil pump is connected with the machine oil pressure-gradient control valve auxiliary oil channel entrance on machine oil pressure-gradient control valve and communicates, and communicated with diesel engine oil pan to oil pan of diesel engine body interface by machine oil pressure-gradient control valve, machine oil pressure-gradient control valve on machine oil pressure-gradient control valve to cooling piston oil duct interface to be connected with diesel engine cooling piston oil duct and to communicate.
Further, the main lubricating oil duct of described body is arranged in middle upper portion in diesel-engine body, and be provided with three tunnel branches, one tunnel branch enters left camshaft lubrication oil duct through diesel-engine body left gusset hole, one tunnel branch enters right camshaft lubrication oil duct through diesel-engine body right web plate hole, and road branch stud plate hole immediately below diesel-engine body enters crankshaft lubrication oil duct.
Further, described diesel engine cooling piston oil duct is arranged on the left and right sides in diesel-engine body, and is connected with left cooling piston oil leab, right cooling piston oil leab respectively and communicates.
Further, described machine oil centrifugal oil purifier is provided with three, is arranged on the crankcase peep hole position of forward end on the right of diesel-engine body side by side, and is all connected with oil pump the 3rd oil outlet tube and communicates.
Further, described pressurized machine arranges two, be divided into the first pressurized machine and the second pressurized machine, the first pressurized machine to be wherein connected with the first pressurized machine filter cleaner by the first pressure regulator valve and to communicate, and the second pressurized machine to be connected with the second pressurized machine filter cleaner by the second pressure regulator valve and to communicate.
Further, the first described pressurized machine filter cleaner and the second pressurized machine filter cleaner to be all filter precisioies the be pressurized machine filter cleaner of 20 microns, all main with the body lubricating oil duct end in one end of every platform pressurized machine filter cleaner is connected and communicates, and the other end to connect with corresponding pressurized machine respectively by the pressure regulator valve of correspondence and communicates.
Further, described lubricating oil system also comprises lubricating oil heat exchanger and oil filter, and oil pump first oil outlet tube in oil pump is connected successively with lubricating oil heat exchanger, oil filter, machine oil pressure-gradient control valve main oil gallery entrance and communicates.
Compared with prior art, the invention has the beneficial effects as follows: make can reduce System Computer oil consumption during diesel engine low speed by adopting machine oil pressure-gradient control valve and the Stress control of whole lubricating oil system is more reliable; By pressurized machine filter cleaner improve diesel engine lubricating oil from filtering ability, thus improve the operating life of pressurized machine, reduce pressurized machine input cost; By the layout of the design of rational piping layout and key components and parts, the exterior line of reduce engine oil system of trying one's best, makes the overall structure of lubricating oil system more reasonable, compact, is conducive to the overall weight alleviating lubricating oil system.Lubricating oil system of the present invention enables diesel engine moving cell obtain sufficient lubrication, decrease the frictional loss of moving cell, improve operating life and the reliability of parts and components of diesel engine, thus can ensure the power character of diesel engine, Economy, reliability and durability.
Accompanying drawing explanation
Fig. 1 is the system construction figure of the lubricating oil system of a kind of high-power diesel engine of the present invention.
Fig. 2 is the structure sectional view of machine oil pressure-gradient control valve in Fig. 1.
Fig. 3 is the internal lubrication oil duct layout chart of diesel engine oil system.
Mark in figure: 1-oil pump, 2-oil feeding pipe of oil pump, 3-oil pump first oil outlet tube, 4-lubricating oil heat exchanger, 5-oil filter, 6-oil pump second oil outlet tube, 7-oil pump the 3rd oil outlet tube, 8-machine oil pressure-gradient control valve, 9-machine oil centrifugal oil purifier, 10-left pressurized machine lubricant pipe assembly, 11-first pressurized machine filter cleaner, 12-first pressure regulator valve, 13-first pressurized machine, 14-second pressurized machine, 15-second pressurized machine filter cleaner, 16-right pressurized machine lubricant pipe assembly, 17-diesel-engine body, the main lubricating oil duct of 18-body, 19-gear lubrication piping, 20-machine oil pressure-gradient control valve main oil gallery entrance, 21-machine oil pressure-gradient control valve auxiliary oil channel entrance, the left camshaft lubrication oil duct of 22-, the left cooling piston oil leab of 23-, 24-crankshaft lubrication oil duct, the right cooling piston oil leab of 25-, the right camshaft lubrication oil duct of 26-, 27-second pressure regulator valve, 28-machine oil pressure-gradient control valve is to main oil gallery interface, 29-machine oil pressure-gradient control valve is to cooling piston oil duct interface, 30-first piston, 31-machine oil pressure-gradient control valve is to oil pan of diesel engine body interface, 32-first spring, 33-second piston, 34-second spring.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The lubricating oil system of a kind of high-power diesel engine as shown in Figure 1, primarily of oil pump 1, lubricating oil heat exchanger 4, oil filter 5, machine oil pressure-gradient control valve 8, machine oil centrifugal oil purifier 9, pressurized machine and pressurized machine filter cleaner and pressure regulator valve composition, pressurized machine wherein arranges two, is divided into the first pressurized machine 13 and the second pressurized machine 14.Described pressurized machine filter cleaner is provided with two, the first pressurized machine filter cleaner 11 and the second pressurized machine filter cleaner 15 respectively, all main with body lubricating oil duct 18 end in one end of every platform pressurized machine filter cleaner is connected and communicates, and the other end to connect with corresponding pressurized machine respectively by the pressure regulator valve of correspondence and communicates.Described pressure regulator valve is also provided with two, be divided into the first pressure regulator valve 12 and the second pressure regulator valve 27, further, the first pressurized machine 13 to be connected with the first pressurized machine filter cleaner 11 by the first pressure regulator valve 12 and to communicate, and the second pressurized machine 14 to be connected with the second pressurized machine filter cleaner 15 by the second pressure regulator valve 27 and to communicate.Described oil pump 1 is installed on the free end plate neutral position of diesel engine oil pan, it to be connected with machine oil centrifugal oil purifier 9 by oil pump the 3rd oil outlet tube 7 and to communicate, described machine oil centrifugal oil purifier 9 is provided with three, be arranged on the crankcase peep hole position of forward end on the right of diesel-engine body 17 side by side, and be all connected with oil pump the 3rd oil outlet tube 7 and communicate.Oil pump first oil outlet tube 3 in described oil pump 1 is connected successively with lubricating oil heat exchanger 4, oil filter 5, machine oil pressure-gradient control valve main oil gallery entrance 20 and communicates.Described machine oil pressure-gradient control valve 8 is one, be arranged on diesel-engine body 17 front end upper right quarter, it to be connected to the main lubricating oil duct 18 of main oil gallery interface 28 and body by machine oil pressure-gradient control valve and to communicate, oil pump second oil outlet tube 6 in oil pump 1 is connected with the machine oil pressure-gradient control valve auxiliary oil channel entrance 21 on machine oil pressure-gradient control valve 8 and communicates, and is communicated with diesel engine oil pan to oil pan of diesel engine body interface 31 by machine oil pressure-gradient control valve; Machine oil pressure-gradient control valve on machine oil pressure-gradient control valve 8 to 29, cooling piston oil duct interface to be connected with diesel engine cooling piston oil duct and to communicate.
Described diesel engine cooling piston oil duct is arranged on the left and right sides in diesel-engine body 17, and is connected with left cooling piston oil leab 23, right cooling piston oil leab 25 respectively and communicates.Therefore, the machine oil entering left cooling piston oil leab 23 can lubrication and cooling left column piston and cylinder liner, and the machine oil entering right cooling piston oil leab 25 can go the right row piston of lubrication and cooling and cylinder liner, and the machine oil lubricated enters oil sump; The cylinder sleeve of left and right two row of lubrication and cooling, the oil duct circuit design of piston ring are in diesel-engine body 17, such structural configuration can the exterior line of reduce engine oil system, make the structure of lubricating oil system more reasonable, compact, but also alleviate the overall weight of lubricating oil system.
As shown in Figure 1, Figure 3, the main lubricating oil duct 18 of body of diesel engine is arranged in middle upper portion in diesel-engine body 17, the main lubricating oil duct 18 of this body is provided with three tunnel branches, one tunnel branch enters left camshaft lubrication oil duct 22 through diesel-engine body 17 left gusset hole, to lubricate the left camshaft bearing of diesel engine and left inlet and outlet cam and injection cam, after then entering left bank cylinders lid lubrication pitman arm shaft and seat, flow into oil sump; One tunnel branch enters right camshaft lubrication oil duct 26 through diesel-engine body 17 right web plate hole, to lubricate right camshaft bearing and right inlet and outlet cam and injection cam, flows into oil sump after then entering right row cylinder head lubricating pitman arm shaft and seat; Also have road branch stud plate hole immediately below diesel-engine body 17 to enter crankshaft lubrication oil duct 24, to lubricate crankshaft bearing, then also flow into oil sump.Left bank cylinders lid pitman arm shaft wherein and the circuit design of seat are in diesel-engine body 17, the pipeline of right row cylinder head pitman arm shaft and seat also designs at diesel-engine body 17 inner, adopt this arrangement can the exterior line of reduce engine oil system, make the structure of lubricating oil system more reasonable, compact, be conducive to the overall weight alleviating lubricating oil system.
The working procedure of the lubricating oil system of a kind of high-power diesel engine of said structure is as follows, from the inlet port ingress engine pump inlet pipe 2 of lubricant oil bottom oil pump 1 of diesel-engine body 17, export respectively through oil pump 1 Hou Fen tri-tunnel of pressurizeing, wherein a road outputs to lubricating oil heat exchanger 4 from oil pump first oil outlet tube 3, then flow through oil filter 5 and output to machine oil pressure-gradient control valve 8, an other road directly outputs to machine oil pressure-gradient control valve 8 from oil pump second oil outlet tube 6, a road is also had then to output to three the machine oil centrifugal oil purifiers 9 installed side by side respectively from oil pump the 3rd oil outlet tube 7, finally all flow back to diesel-engine body 17 from machine oil centrifugal oil purifier 9.The structure of machine oil pressure-gradient control valve 8 wherein as shown in Figure 2, the second spring 34 mainly comprising first piston 30 and the first spring 32 be attached thereto and the second piston 33 and be attached thereto.First piston 30, second piston 33 wherein can move right under the pressure effect of lubricant oil entering into machine oil pressure-gradient control valve 8, and make corresponding first spring 32, second spring 34 produce resiliently deformable, meanwhile, the first spring 32, second spring 34 also can drive first piston 30, second piston 33 to left movement due to the reply of resiliently deformable.Therefore, the actual pressure size of the lubricant oil entering into machine oil pressure-gradient control valve main oil gallery entrance 20 and machine oil pressure-gradient control valve auxiliary oil channel entrance 21 is just depended in the actual motion direction of first piston 30, second piston 33.According to the difference of actual pressure, machine oil pressure-gradient control valve 8 can have three kinds of working methods corresponding from different range of pressure values, and these three kinds of working methods are corresponding respectively: the first, the only channel conductive of the main lubricating oil duct 18 of organic oil pressure-gradient control valve 8 to body; The second, the main lubricating oil duct 18 of machine oil pressure-gradient control valve 8 to body and the passage conducting simultaneously to cooling piston oil duct; 3rd, the main lubricating oil duct 18 of machine oil pressure-gradient control valve 8 to body, to cooling piston oil duct and the passage simultaneously conducting to diesel-engine body 17 oil sump.Adopt the machine oil pressure-gradient control valve 8 of this structure and working method can reduce the consumption of machine oil when diesel engine low cruise, be conducive to machine oil saving cost.The machine oil part exported from machine oil pressure-gradient control valve 8 outlet end enters gear lubrication piping 19 to meet the lubrication needs of gear, other major parts then enter in the main lubricating oil duct 18 of body, then through left pressurized machine lubricant pipe assembly 10, finally output in the first pressurized machine 13, simultaneously through right pressurized machine lubricant pipe assembly 16, finally output in the second pressurized machine 14.
Oil pump 1 in the present invention adopts a constant volume gear-type oil pump, is driven by diesel engine crankshaft gear, as the power plant of whole lubricating oil system; Machine oil centrifugal oil purifier 9 wherein arranges three, and machine oil centrifugal oil purifier 9 flow is 35 liters/min, with improve diesel engine lubricating oil from filtering ability, make the quality of lubrication oil of parts and components of diesel engine higher; Pressurized machine filter cleaner wherein arranges two, the first pressurized machine filter cleaner 11 and the second pressurized machine filter cleaner 15 respectively, and its filter precision is 20 microns, to improve the filter precision of the first pressurized machine 13 and the second pressurized machine 14 lubricant oil, and then improve the operating life of pressurized machine, reduce the user cost of pressurized machine.
Owing to adopting above-mentioned technological scheme, the present invention can make can reduce System Computer oil consumption during diesel engine low speed by machine oil pressure-gradient control valve 8, and the Stress control of whole lubricating oil system is more reliable, simultaneously, lubricating oil system of the present invention also enables diesel engine moving cell obtain sufficient lubrication, decrease the frictional loss of moving cell, improve operating life and the reliability of parts and components of diesel engine, improve the cycle changing diesel engine lubricating oil further, thus can ensure the power character of diesel engine, Economy, reliability and durability.Following parameter is adopted to assess, the expense of machine oil saving is calculated as follows: setting machine oil price m is 34.5 yuan/kilogram, diesel engine power Ne is 3800kW, machine oil saving ge is 0.05g/kW.h, annual operating time n is 350 days/year, operating time every day B is 21 hours/day, and diesel load rate V is 75%, then this diesel engine runs the expense can saved for a year and is:
B*V*Ne*ge*n*m/1000=21*75%*3800*0.05*350*34.5/1000=36.3 ten thousand (unit), " * " expression is wherein multiplied.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the lubricating oil system of a high-power diesel engine, comprise oil pump (1), machine oil centrifugal oil purifier (9), pressurized machine and pressurized machine filter cleaner and pressure regulator valve, oil pump (1) to be connected with machine oil centrifugal oil purifier (9) by oil pump the 3rd oil outlet tube (7) and to communicate, pressurized machine to be connected with pressurized machine filter cleaner by pressure regulator valve and to communicate, it is characterized in that: also comprise machine oil pressure-gradient control valve (8), oil pump first oil outlet tube (3) in oil pump (1) is connected with machine oil pressure-gradient control valve main oil gallery entrance (20) on machine oil pressure-gradient control valve (8) and communicates, and communicated with the main lubricating oil duct of body (18) to main oil gallery interface (28) by machine oil pressure-gradient control valve, oil pump second oil outlet tube (6) in oil pump (1) is connected with machine oil pressure-gradient control valve auxiliary oil channel entrance (21) on machine oil pressure-gradient control valve (8) and communicates, and communicated with diesel engine oil pan to oil pan of diesel engine body interface (31) by machine oil pressure-gradient control valve, machine oil pressure-gradient control valve on machine oil pressure-gradient control valve (8) to cooling piston oil duct interface (29) to be connected with diesel engine cooling piston oil duct and to communicate.
2. the lubricating oil system of a kind of high-power diesel engine according to claim 1, it is characterized in that: the main lubricating oil duct of described body (18) is arranged in diesel-engine body (17) interior middle upper portion, and be provided with three tunnel branches, one tunnel branch enters left camshaft lubrication oil duct (22) through diesel-engine body (17) left gusset hole, one tunnel branch enters right camshaft lubrication oil duct (26) through diesel-engine body (17) right web plate hole, and road branch stud plate hole immediately below diesel-engine body (17) enters crankshaft lubrication oil duct (24).
3. the lubricating oil system of a kind of high-power diesel engine according to claim 1, it is characterized in that: described diesel engine cooling piston oil duct is arranged on diesel-engine body (17) the interior left and right sides, and be connected with left cooling piston oil leab (23), right cooling piston oil leab (25) respectively and communicate.
4. the lubricating oil system of a kind of high-power diesel engine according to any one of claim 1-3, it is characterized in that: described machine oil centrifugal oil purifier (9) is provided with three, be arranged on the crankcase peep hole position of the forward end in diesel-engine body (17) the right side by side, and be all connected with oil pump the 3rd oil outlet tube (7) and communicate.
5. the lubricating oil system of a kind of high-power diesel engine according to any one of claim 1-3, it is characterized in that: described pressurized machine arranges two, be divided into the first pressurized machine (13) and the second pressurized machine (14), the first pressurized machine (13) to be wherein connected with the first pressurized machine filter cleaner (11) by the first pressure regulator valve (12) and to communicate, and the second pressurized machine (14) to be connected with the second pressurized machine filter cleaner (15) by the second pressure regulator valve (27) and to communicate.
6. the lubricating oil system of a kind of high-power diesel engine according to claim 5, it is characterized in that: the first described pressurized machine filter cleaner (11) and the second pressurized machine filter cleaner (15) to be all filter precisioies the be pressurized machine filter cleaner of 20 microns, one end all main with body lubricating oil duct (18) end of every platform pressurized machine filter cleaner is connected and communicates, and the other end to connect with corresponding pressurized machine respectively by the pressure regulator valve of correspondence and communicates.
7. the lubricating oil system of a kind of high-power diesel engine according to any one of claim 1-3, it is characterized in that: described lubricating oil system also comprises lubricating oil heat exchanger (4) and oil filter (5), and oil pump first oil outlet tube (3) in oil pump (1) is connected successively with lubricating oil heat exchanger (4), oil filter (5), machine oil pressure-gradient control valve main oil gallery entrance (20) and communicates.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103867257B (en) * | 2014-02-28 | 2016-01-06 | 南车玉柴四川发动机股份有限公司 | A kind of pressure-gradient control valve reducing medium speed diesel oil consumption |
| CN106437934A (en) * | 2016-10-14 | 2017-02-22 | 中车大连机车车辆有限公司 | Lubrication structure for upper-layer gas distribution parts of high-power diesel engine power units |
| CN113550808B (en) * | 2021-08-18 | 2022-11-29 | 河南柴油机重工有限责任公司 | Throttle control lubricating system |
| CN114033571A (en) * | 2021-11-25 | 2022-02-11 | 中车大连机车车辆有限公司 | Integral casting integrated diesel engine body |
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