CN107218099A - High-power diesel engine engine oil pressure control method - Google Patents
High-power diesel engine engine oil pressure control method Download PDFInfo
- Publication number
- CN107218099A CN107218099A CN201710479492.0A CN201710479492A CN107218099A CN 107218099 A CN107218099 A CN 107218099A CN 201710479492 A CN201710479492 A CN 201710479492A CN 107218099 A CN107218099 A CN 107218099A
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- Prior art keywords
- engine oil
- diesel engine
- oil
- oil pressure
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
Abstract
The invention discloses high-power diesel engine engine oil pressure control method, one overflow control valve is installed in the main lubricating oil pump outlet bypass line of diesel engine lubricating oil system；Monitor the engine oil pressure in diesel engine oil duct；When the engine oil pressure in diesel engine oil duct reaches engine oil pressure overflow critical value, overflow control valve is opened, starts pressure release；When the engine oil pressure in diesel engine oil duct is less than engine oil pressure overflow critical value, overflow control valve magnetic valve is closed, stops pressure release.Improve the lubrication and radiating effect of diesel engine movement parts, extend the service life of parts and components of diesel engine, so as to improve the economy of diesel engine.
Description
Technical field
The present invention relates to Diesel Engine Technique Field, and in particular to a kind of high-power diesel engine engine oil pressure method.
Background technology
The engine oil pressure control of high-power diesel engine, has vital to the functional reliability and durability of diesel engine
Effect.The abrasion of part is reduced, frictional work is reduced；Lubricated surface is cooled down and cleaned；Specific position is sealed,
Damping, these are required for a stable engine oil pressure environment.Traditional way, is usually pumped out in the Oil gallery of diesel engine
Mouth pipeline bypasses an overflow valve, and when main lubricating oil pump export pipeline oil pressure exceedes setting value, overflow valve is opened, and carries out pressure release,
Ensure that main lubricating oil pump export pipeline inner engine oil pressure will not be too high with this.But this way, can only be to main lubricating oil pump outlet
Oil pressure in road carries out pressure limiting.After diesel engine uses a period of time, as oil filter filter core is gradually dirty, resistance becomes big
And the factor such as some other external force, the reduction of diesel engine oil duct inner engine oil pressure can be caused, make lubrication, the radiating of diesel engine
Effect declines, and now, overflow valve but still carries out pressure limiting to the oil pressure that main lubricating oil pump is exported, and can further deteriorate diesel oil on the contrary
The lubrication of machine, radiating effect.
To improve the engine oil pressure control of high-power diesel engine, CN 103670580A Chinese patent applications propose one
Plant the scheme that machine oil pressure-gradient control valve is installed before diesel engine oil duct.This machine oil pressure-gradient control valve is according to the actual engine oil of installation site
Pressure is different, and three kinds of different working methods are corresponded to respectively：First, only organic oil pressure-gradient control valve to main oil gallery is turned on；Second, to master
Oil duct is simultaneously turned on extremely cooling piston oil duct；3rd, led simultaneously with the oil duct to oil sump to main oil gallery, extremely cooling piston
It is logical.As can be seen that the similar overflow valve of the operation principle of machine oil pressure-gradient control valve, when engine oil pressure is too high, machine oil pressure-gradient control valve to cooling
Piston oil duct is turned on, and is carried out pressure release, when engine oil pressure is higher, is also simultaneously turned on to oil sump duct, increases pressure relief capability.This
Engine oil pressure control method is planted, equivalent to an overflow valve is mounted with before main oil conduit, directly main oil conduit can be carried out
Engine oil pressure is controlled, and solves the unstable shortcoming of conventional diesel engine engine oil pressure control method pressure regulation.But, because pressure-gradient control valve phase
When then giving main oil conduit pressure release, and the flow of diesel engine fuel pump outlet can fully enter oil cooler and oil filter
In, therefore to the filter capacity requirement of the cooling requirements of oil cooler, and oil filter, all will increase.
The content of the invention
The purpose of the present invention is exactly to overcome the deficiency of above-mentioned prior art there is provided a kind of high-power diesel engine engine oil pressure control
Method processed, shortens the pre-lubrication time of diesel engine.
The technical solution adopted in the present invention is, a kind of high-power diesel engine engine oil pressure control method, it is characterised in that
Take the following steps：
A. the main lubricating oil pump of diesel engine lubricating oil system is exported to bypass line one overflow control valve of installation of oil sump；
B. engine oil pressure overflow critical value is set；
C. the engine oil pressure in diesel engine oil duct is monitored；
D. when the engine oil pressure in diesel engine oil duct reaches engine oil pressure overflow critical value, overflow control is opened
Valve, starts pressure release；When the engine oil pressure in diesel engine oil duct is less than engine oil pressure overflow critical value, overflow control is closed
Valve, stops pressure release.
The beneficial effects of the invention are as follows：Engine oil pressure in thus according to diesel engine oil duct is come control main frame oil pump
The keying of bypass line overflow flow control valve is exported, so as to both avoid traditional scheme because of the gradually dirty, resistance of oil filter filter core
Power becomes big and causes the fault open of overflow control valve, it also avoid pressure-gradient control valve scheme and comes because directly to main oil conduit pressure release, making
Excessively enter from the machine oil of diesel engine fuel pump outlet in oil cooler and oil filter, so as to increase oil cooler and cleaner
The drawbacks of burden, improve the lubrication and radiating effect of diesel engine movement parts, extend the service life of parts and components of diesel engine, so as to carry
The high economy of diesel engine.
Brief description of the drawings
Fig. 1 is the principle schematic of the embodiment of the present invention.
Marked in figure：1- stop valves；The pre- oil feed pump of 2- accessory system machine oil；3- check valves；4- overflow control valves；5- from
Heart cleaner；6- main lubricating oil pumps；7- oil cooler；8- oil filter；9- engine oil filter for booster；10- turbochargings
Device；11- body main oil conduits；12- inlet ports；13- oil sumps；
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, the scope of protection of the invention is belonged to.
Referring to accompanying drawing 1, when diesel engine prepares Qi Jishi, open diesel engine auxiliary system equipment machine oil and supply pump 2 in advance, machine oil from
Oil sump inlet port 12 is flowed into oil cooler 7 for pump 2 in advance through machine oil, then flows to diesel oil owner by oil filter 8
Oil passage 11.The one of branch of machine oil in main oil conduit 11 flows into the assembling such as each cylinder head of diesel engine, and it is lubricated；
One branch's splash is assembled to gear drive, is its lubrication；Main oil conduit 11 end one branch flows into booster machine oil refined filtration
Device 9, then turbocharger 10 is flowed into, it is lubricated；The connecting rod, bent axle, work of main flow machine oil in main oil conduit 11 to diesel engine
The main movement pairs such as plug are lubricated.All machine oil loops, finally because of Action of Gravity Field, flow back to diesel engine oil pan 13.Bavin
The lubrication of all parts of oil machine, since main oil conduit 11, it can thus be seen that the engine oil pressure control of main oil conduit 11
System, is to influence a key factor of Diesel Engine Complete Machine greasy property.After diesel engine starting, diesel engine accessory system machine oil is pre-
It is stopped for pump 2, diesel engine oil pump 6 is extracted machine oil from oil sump out, hereafter machine oil as the power source of engine oil flow
All flow directions are same with pre- fuel feeding pump work phase.The outlet of main lubricating oil pump 6 bypass line installs an overflow control valve 4, main
Draw a control oil circuit on Oil passage 11 to overflow control valve remote control hole, monitor the engine oil pressure in diesel engine oil duct 11.
When the engine oil pressure in diesel engine oil duct 11 reaches engine oil pressure overflow critical value, overflow control valve 4 is opened, starts to let out
Pressure；When the engine oil pressure in diesel engine oil duct 11 is less than engine oil pressure overflow critical value, closes overflow control valve 4 and stop
Pressure release.Overflow control valve 4 can also use electromagnetic control structure, set engine oil pressure pickup in main oil conduit 11, pass through
The signal of the engine oil pressure pickup, to control the keying of overflow control valve.
Claims (1)
1. high-power diesel engine engine oil pressure control method, it is characterised in that take the following steps：
A. the main lubricating oil pump of diesel engine lubricating oil system is exported to one overflow control valve of installation on the bypass line of oil sump；
B. engine oil pressure overflow critical value is set；
C. the engine oil pressure in diesel engine oil duct is monitored；
D. when the engine oil pressure in diesel engine oil duct reaches engine oil pressure overflow critical value, overflow control valve is opened, is opened
Beginning pressure release；When the engine oil pressure in diesel engine oil duct is less than engine oil pressure overflow critical value, overflow control valve is closed, is stopped
Stopping leak pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479492.0A CN107218099A (en) | 2017-06-22 | 2017-06-22 | High-power diesel engine engine oil pressure control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479492.0A CN107218099A (en) | 2017-06-22 | 2017-06-22 | High-power diesel engine engine oil pressure control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218099A true CN107218099A (en) | 2017-09-29 |
Family
ID=59950831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710479492.0A Withdrawn CN107218099A (en) | 2017-06-22 | 2017-06-22 | High-power diesel engine engine oil pressure control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218099A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905625A (en) * | 2019-12-10 | 2020-03-24 | 潍柴重机股份有限公司 | Engine lubricating system capable of preventing engine oil from impacting and control method |
| CN114323660A (en) * | 2022-01-10 | 2022-04-12 | 中车大连机车车辆有限公司 | Visible high-efficient diesel engine of low misstatement rate tile grinding position grinds tile alarm device |
| US11920535B2 (en) | 2020-02-14 | 2024-03-05 | Cummins Inc. | Apparatuses, methods, systems, and techniques of misfire detection using engine speed sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD141939A1 (en) * | 1979-02-07 | 1980-05-28 | Peter Schuessler | ARRANGEMENT FOR AUTOMATIC SHUT-OFF OF RESERVE OR PREMIERING PUMPS |
| JP2000186520A (en) * | 1998-12-22 | 2000-07-04 | Hino Motors Ltd | Pressurized oil supply circuit |
| CN101624927A (en) * | 2009-07-30 | 2010-01-13 | 奇瑞汽车股份有限公司 | Lubricating system of engine |
| CN204344191U (en) * | 2014-11-27 | 2015-05-20 | 北汽福田汽车股份有限公司 | Lubrication system for internal combustion engine and there is its vehicle |
| CN205117445U (en) * | 2015-11-30 | 2016-03-30 | 汉格斯特滤清系统(昆山)有限公司 | Machine oil filter module |
-
2017
- 2017-06-22 CN CN201710479492.0A patent/CN107218099A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD141939A1 (en) * | 1979-02-07 | 1980-05-28 | Peter Schuessler | ARRANGEMENT FOR AUTOMATIC SHUT-OFF OF RESERVE OR PREMIERING PUMPS |
| JP2000186520A (en) * | 1998-12-22 | 2000-07-04 | Hino Motors Ltd | Pressurized oil supply circuit |
| CN101624927A (en) * | 2009-07-30 | 2010-01-13 | 奇瑞汽车股份有限公司 | Lubricating system of engine |
| CN204344191U (en) * | 2014-11-27 | 2015-05-20 | 北汽福田汽车股份有限公司 | Lubrication system for internal combustion engine and there is its vehicle |
| CN205117445U (en) * | 2015-11-30 | 2016-03-30 | 汉格斯特滤清系统(昆山)有限公司 | Machine oil filter module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905625A (en) * | 2019-12-10 | 2020-03-24 | 潍柴重机股份有限公司 | Engine lubricating system capable of preventing engine oil from impacting and control method |
| US11920535B2 (en) | 2020-02-14 | 2024-03-05 | Cummins Inc. | Apparatuses, methods, systems, and techniques of misfire detection using engine speed sensor |
| CN114323660A (en) * | 2022-01-10 | 2022-04-12 | 中车大连机车车辆有限公司 | Visible high-efficient diesel engine of low misstatement rate tile grinding position grinds tile alarm device |
| CN114323660B (en) * | 2022-01-10 | 2023-09-26 | 中车大连机车车辆有限公司 | High-efficiency diesel engine tile grinding alarm device with visual tile grinding position and low false alarm rate |
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Application publication date: 20170929 |