CN103670580A - Engine oil system of high-power diesel engine - Google Patents
Engine oil system of high-power diesel engine Download PDFInfo
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- CN103670580A CN103670580A CN201310637768.5A CN201310637768A CN103670580A CN 103670580 A CN103670580 A CN 103670580A CN 201310637768 A CN201310637768 A CN 201310637768A CN 103670580 A CN103670580 A CN 103670580A
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Abstract
The invention provides an engine oil system of a high-power diesel engine. The engine oil system comprises an engine oil pump, an engine oil priority valve, centrifugal engine oil filters, superchargers, supercharger filters and pressure regulating valves. The engine oil pump is connected and communicated with the centrifugal engine oil filters, the superchargers are connected and communicated with the supercharger filters via the pressure regulating valves, an engine oil pump first oil outlet tube on the engine oil pump is connected and communicated with an engine oil priority valve main oil passage inlet in the engine oil priority valve, an engine oil pump second oil outlet tube is connected and communicated with an engine oil priority valve auxiliary oil passage inlet in the engine oil priority valve, a certain interface in the engine oil priority valve is connected and communicated with a cooling piston oil passage of the diesel engine, and the certain interface extends from the engine oil priority valve to the cooling piston oil passage. The engine oil system has the advantages that the self engine oil filter ability of the diesel engine can be improved, engine oil consumption of the system can be reduced, and the pressure of the integral engine oil system can be reliably controlled; the engine oil system is reasonable and compact in integral structure and is favorable for guaranteeing the dynamic property, the economical efficiency, the reliability and the durability of the diesel engine.
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, lubricating oil system plays lubricated, heat conduction, cleaning, sealing, rust inhibition to the component of diesel engine, make the moving cell of diesel engine obtain lubricated fully, thereby minimizing frictional loss, alleviate parts wear, to guarantee power character, Economy, reliability and the durability of diesel engine.
Existing diesel engine oil system is mainly comprised of 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 pipeline etc.The concrete layout of its system is as follows: (1) oil pump is a constant volume gear-type oil pump, by diesel engine crankshaft gear, is driven, and is installed on the free end plate of diesel engine oil pan neutral position, as the power plant of whole lubricating oil system; (2) machine oil centrifugal oil purifier arranges two, is arranged on side by side the crankcase peep hole position of the forward end in diesel engine the right; (3) safety valve is one, is arranged on the free end plate upper left quarter of oil sump; (4) design of the lubricating pipe 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 that enters left side cooling piston oil duct goes lubrication and cooling left column piston and cylinder liner, the machine oil that enters right side cooling piston oil duct goes the right row piston of lubrication and cooling and cylinder liner, and the machine oil having lubricated enters oil sump; (6) pressurized machine filter cleaner is two, is arranged in connecting box both sides, and one end of every 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, make diesel engine lubricating oil system architecture disperse, not compact, take space outerpace; In addition, the filter precision of pressurized machine filter cleaner is wherein 25 microns, is also unfavorable for the lubricated of pressurized machine, the working life of having reduced pressurized machine.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existing for prior art, 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 is controlled 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 is connected and communicates with machine oil centrifugal oil purifier by oil pump the 3rd oil outlet tube, pressurized machine is connected and communicates with pressurized machine filter cleaner by pressure regulator valve, oil pump the first oil outlet tube in oil pump is connected and communicates with machine oil pressure-gradient control valve main oil gallery entrance on machine oil pressure-gradient control valve, and communicate by machine oil pressure-gradient control valve to the main lubricating oil duct of main oil gallery interface and body, oil pump the second oil outlet tube in oil pump is connected and communicates with machine oil pressure-gradient control valve auxiliary oil channel entrance on machine oil pressure-gradient control valve, and communicate with diesel engine oil pan by machine oil pressure-gradient control valve to oil pan of diesel engine body interface, machine oil pressure-gradient control valve on machine oil pressure-gradient control valve to cooling piston oil duct interface is connected and communicates with diesel engine cooling piston oil duct.
Further, the main lubricating oil duct of described body is arranged in middle upper portion in diesel-engine body, and be provided with San Lu branch, Yi Lu branch enters left camshaft lubrication oil duct through the left gusset of diesel-engine body hole, Yi Lu branch enters right camshaft lubrication oil duct through diesel-engine body right web plate hole, and Yi Lu branch stud plate hole under 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 and communicates with left cooling piston oil leab, right cooling piston oil leab respectively.
Further, described machine oil centrifugal oil purifier is provided with three, is arranged on side by side the crankcase peep hole position of the forward end in diesel-engine body the right, and is all connected and communicates with oil pump the 3rd oil outlet tube.
Further, described pressurized machine arranges two, be divided into the first pressurized machine and the second pressurized machine, the first pressurized machine is wherein connected and communicates with the first pressurized machine filter cleaner by the first pressure regulator valve, and the second pressurized machine is connected and communicates with the second pressurized machine filter cleaner by the second pressure regulator valve.
Further, the first described pressurized machine filter cleaner and the second pressurized machine filter cleaner are all that filter precision is the pressurized machine filter cleaner of 20 microns, one end of every pressurized machine filter cleaner is all connected and communicates with the main lubricating oil duct end of body, and the other end communicates with corresponding pressurized machine connection by corresponding pressure regulator valve respectively.
Further, described lubricating oil system also comprises lubricating oil heat exchanger and oil filter, and the first oil outlet tube of the oil pump in oil pump is connected and communicates successively with lubricating oil heat exchanger, oil filter, machine oil pressure-gradient control valve main oil gallery entrance.
Compared with prior art, the invention has the beneficial effects as follows: the pressure that can reduce System Computer oil consumption and whole lubricating oil system while making diesel engine low speed by employing machine oil pressure-gradient control valve is controlled more reliable; By pressurized machine filter cleaner improve diesel engine lubricating oil from filtering ability, thereby 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, reduce the exterior line of lubricating oil system as far as possible, make the overall structure of lubricating oil system more reasonable, compact, be conducive to alleviate the overall weight of lubricating oil system.It is lubricated fully that lubricating oil system of the present invention can obtain diesel engine moving cell, reduced the frictional loss of moving cell, improve operating life and the reliability of parts and components of diesel engine, thereby can guarantee power character, Economy, reliability and the durability of diesel engine.
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 the first oil outlet tube, 4-lubricating oil heat exchanger, 5-oil filter, 6-oil pump the 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, the left pressurized machine lubricant pipe of 10-assembly, 11-the first pressurized machine filter cleaner, 12-the first pressure regulator valve, 13-the first pressurized machine, 14-the second pressurized machine, 15-the second pressurized machine filter cleaner, the right pressurized machine lubricant pipe of 16-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-the 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-the first spring, 33-the second piston, 34-the second spring.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, 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, is not intended to limit the present invention.
The lubricating oil system of a kind of high-power diesel engine as shown in Figure 1, mainly by 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, formed, 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, respectively the first pressurized machine filter cleaner 11 and the second pressurized machine filter cleaner 15, one end of every pressurized machine filter cleaner is all connected and communicates with main lubricating oil duct 18 ends of body, and the other end communicates with corresponding pressurized machine connection by corresponding pressure regulator valve respectively.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, and the first pressurized machine 13 is connected and communicates with the first pressurized machine filter cleaner 11 by the first pressure regulator valve 12, the second pressurized machine 14 is connected and communicates with the second pressurized machine filter cleaner 15 by the second pressure regulator valve 27.Described oil pump 1 is installed on the free end plate of diesel engine oil pan neutral position, it is connected and communicates with machine oil centrifugal oil purifier 9 by oil pump the 3rd oil outlet tube 7, described machine oil centrifugal oil purifier 9 is provided with three, be arranged on side by side the crankcase peep hole position of the diesel-engine body 17 forward ends in the right, and be all connected and communicate with oil pump the 3rd oil outlet tube 7.Oil pump the first oil outlet tube 3 in described oil pump 1 is connected and communicates successively with lubricating oil heat exchanger 4, oil filter 5, machine oil pressure-gradient control valve main oil gallery entrance 20.Described machine oil pressure-gradient control valve 8 is one, be arranged on diesel-engine body 17 front end upper right quarters, it is connected and communicates to the main lubricating oil duct 18 of main oil gallery interface 28 and body by machine oil pressure-gradient control valve, oil pump the second oil outlet tube 6 in oil pump 1 is connected and communicates with the machine oil pressure-gradient control valve auxiliary oil channel entrance 21 on machine oil pressure-gradient control valve 8, and communicates with diesel engine oil pan by machine oil pressure-gradient control valve to oil pan of diesel engine body interface 31; Machine oil pressure-gradient control valve on machine oil pressure-gradient control valve 8 to 29, cooling piston oil duct interface is connected and communicates with diesel engine cooling piston oil duct.
Described diesel engine cooling piston oil duct is arranged on the interior left and right sides of diesel-engine body 17, and is connected and communicates with left cooling piston oil leab 23, right cooling piston oil leab 25 respectively.Therefore, the machine oil that enters left cooling piston oil leab 23 can lubrication and cooling left column piston and cylinder liner, and the machine oil that enters right cooling piston oil leab 25 can go the right row piston of lubrication and cooling and cylinder liner, and the machine oil having lubricated enters oil sump; The cylinder sleeves of left and right two row of lubrication and cooling, the oil duct circuit design of piston ring in diesel-engine body 17, such structural configuration can reduce the exterior line of lubricating oil system, make the structure of lubricating oil system more reasonable, compact, but also alleviated 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 the interior middle upper portion of diesel-engine body 17, the main lubricating oil duct 18 of this body is provided with San Lu branch, Yi Lu branch enters left camshaft lubrication oil duct 22 through the left gusset of diesel-engine body 17 hole, so that the left camshaft bearing of diesel engine and left inlet and outlet cam and injection cam are lubricated, flow into oil sump after then entering left column cylinder head lubricating pitman arm shaft and seat; Yi Lu branch enters right camshaft lubrication oil duct 26 through diesel-engine body 17 right web plate holes, so that right camshaft bearing and right inlet and outlet cam and injection cam are lubricated, flows into oil sump after then entering right row cylinder head lubricating pitman arm shaft and seat; Also have Yi Lu branch stud plate hole under diesel-engine body 17 to enter crankshaft lubrication oil duct 24, so that crankshaft bearing is lubricated, then also flow into oil sump.The circuit design of left column cylinder head pitman arm shaft wherein and seat is in diesel-engine body 17, the pipeline of right row cylinder head pitman arm shaft and seat also designs in diesel-engine body 17 inside, adopt this arrangement can reduce the exterior line of lubricating oil system, make the structure of lubricating oil system more reasonable, compact, be conducive to alleviate the overall weight of 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 lubricant oil of diesel-engine body 17, through the inlet port of oil pump 1 bottom, enter oil feeding pipe of oil pump 2, through oil pump 1 pressurization Hou Fen tri-tunnels, export respectively, wherein a road outputs to lubricating oil heat exchanger 4 from oil pump the first oil outlet tube 3, then the oil filter of flowing through 5 outputs to machine oil pressure-gradient control valve 8, an other road directly outputs to machine oil pressure-gradient control valve 8 from oil pump the second oil outlet tube 6, also have a road from oil pump the 3rd oil outlet tube 7, to output to respectively three machine oil centrifugal oil purifiers 9 of installation arranged side by side, finally all from machine oil centrifugal oil purifier 9, flow back to diesel-engine body 17.The structure of machine oil pressure-gradient control valve 8 wherein as shown in Figure 2, mainly comprises first piston 30 and the first spring 32 being attached thereto and the second piston 33 and the second spring 34 being attached thereto.First piston 30 wherein, the second piston 33 can move right under the pressure-acting of lubricant oil that enters into machine oil pressure-gradient control valve 8, and make corresponding the first spring 32, the second spring 34 produce resiliently deformable, meanwhile, the first spring 32, the second spring 34 are because the reply of resiliently deformable also can drive first piston 30, the second piston 33 to left movement.Therefore, the actual motion direction of first piston 30, the second piston 33 just depends on the actual pressure size of the lubricant oil that enters into machine oil pressure-gradient control valve main oil gallery entrance 20 and machine oil pressure-gradient control valve auxiliary oil channel entrance 21.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, and only organic oil pressure-gradient control valve 8 is to the passage conducting of the main lubricating oil duct 18 of body; The second, machine oil pressure-gradient control valve 8 is to the main lubricating oil duct 18 of body with to the conducting simultaneously of the passage of cooling piston oil duct; The 3rd, machine oil pressure-gradient control valve 8 is to the main lubricating oil duct 18 of body, to cooling piston oil duct with to the conducting simultaneously of the passage of diesel-engine body 17 oil sumps.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.From a machine oil part for machine oil pressure-gradient control valve 8 outlet end outputs, enter gear lubrication piping 19 to meet the lubricated needs of gear, other major parts enter in the main lubricating oil duct 18 of body, then pass through left pressurized machine lubricant pipe assembly 10, finally output in the first pressurized machine 13, pass through right pressurized machine lubricant pipe assembly 16 simultaneously, 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, as the power plant of whole lubricating oil system by diesel engine crankshaft gear; Machine oil centrifugal oil purifier 9 wherein arranges three, and machine oil centrifugal oil purifier 9 flows are 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, respectively the first pressurized machine filter cleaner 11 and the second pressurized machine filter cleaner 15, 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 the operating life of raising pressurized machine, the user cost of reduction pressurized machine.
Owing to adopting above-mentioned technological scheme, the present invention can reduce System Computer oil consumption in the time of can making diesel engine low speed by machine oil pressure-gradient control valve 8, and the pressure of whole lubricating oil system is controlled more reliable, simultaneously, it is lubricated fully that lubricating oil system of the present invention also makes diesel engine moving cell obtain, reduced the frictional loss of moving cell, operating life and the reliability of parts and components of diesel engine have been improved, further promoted and changed the cycle of diesel engine lubricating oil, thereby can guarantee power character, Economy, reliability and the durability of diesel engine.Adopt following parameter 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%, and the expense that this diesel engine operation can be saved for a year is:
B*V*Ne*ge*n*m/1000=21*75%*3800*0.05*350*34.5/1000=36.3 ten thousand (unit), " * " wherein represents to multiply each other.
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 modifications of doing within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in 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) is connected and communicates with machine oil centrifugal oil purifier (9) by oil pump the 3rd oil outlet tube (7), pressurized machine is connected and communicates with pressurized machine filter cleaner by pressure regulator valve, it is characterized in that: also comprise machine oil pressure-gradient control valve (8), oil pump the first oil outlet tube (3) in oil pump (1) is connected and communicates with machine oil pressure-gradient control valve main oil gallery entrance (20) on machine oil pressure-gradient control valve (8), and communicate with the main lubricating oil duct of body (18) by machine oil pressure-gradient control valve to main oil gallery interface (28), oil pump the second oil outlet tube (6) in oil pump (1) is connected and communicates with machine oil pressure-gradient control valve auxiliary oil channel entrance (21) on machine oil pressure-gradient control valve (8), and communicate with diesel engine oil pan by machine oil pressure-gradient control valve to oil pan of diesel engine body interface (31), machine oil pressure-gradient control valve on machine oil pressure-gradient control valve (8) to cooling piston oil duct interface (29) is connected and communicates with diesel engine cooling piston oil duct.
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 the interior middle upper portion of diesel-engine body (17), and be provided with San Lu branch, Yi Lu branch enters left camshaft lubrication oil duct (22) through the left gusset of diesel-engine body (17) hole, Yi Lu branch enters right camshaft lubrication oil duct (26) through diesel-engine body (17) right web plate hole, and Yi Lu branch stud plate hole under 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 the interior left and right sides of diesel-engine body (17), and be connected and communicate with left cooling piston oil leab (23), right cooling piston oil leab (25) respectively.
4. according to the lubricating oil system of a kind of high-power diesel engine described in claim 1-3 any one, it is characterized in that: described machine oil centrifugal oil purifier (9) is provided with three, be arranged on side by side the crankcase peep hole position of the forward end in diesel-engine body (17) the right, and be all connected and communicate with oil pump the 3rd oil outlet tube (7).
5. according to the lubricating oil system of a kind of high-power diesel engine described in claim 1-3 any one, 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) is wherein connected and communicates with the first pressurized machine filter cleaner (11) by the first pressure regulator valve (12), and the second pressurized machine (14) is connected and communicates with the second pressurized machine filter cleaner (15) by the second pressure regulator valve (27).
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) are all that filter precision is the pressurized machine filter cleaner of 20 microns, one end of every pressurized machine filter cleaner is all connected and communicates with the main lubricating oil duct of body (18) end, and the other end communicates with corresponding pressurized machine connection by corresponding pressure regulator valve respectively.
7. according to the lubricating oil system of a kind of high-power diesel engine described in claim 1-3 any one, it is characterized in that: described lubricating oil system also comprises lubricating oil heat exchanger (4) and oil filter (5), and oil pump the first oil outlet tube (3) in oil pump (1) is connected and communicates successively with lubricating oil heat exchanger (4), oil filter (5), machine oil pressure-gradient control valve main oil gallery entrance (20).
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Cited By (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 |
| CN113550808A (en) * | 2021-08-18 | 2021-10-26 | 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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| CN113550808A (en) * | 2021-08-18 | 2021-10-26 | 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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| CN103670580B (en) | 2015-09-16 |
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Address after: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee after: Sichuan Zhongche Yuchai engine Limited by Share Ltd Address before: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee before: YCSR Sichuan Engine Co.,Ltd. |
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Denomination of invention: Engine oil system of high-power diesel engine Effective date of registration: 20200710 Granted publication date: 20150916 Pledgee: Guangxi Yuchai Machinery Group Co.,Ltd. Pledgor: SICHUAN YCRRC ENGINE Co.,Ltd. Registration number: Y2020980003981 |