CN104727889B - A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil - Google Patents
A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil Download PDFInfo
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- CN104727889B CN104727889B CN201510021941.8A CN201510021941A CN104727889B CN 104727889 B CN104727889 B CN 104727889B CN 201510021941 A CN201510021941 A CN 201510021941A CN 104727889 B CN104727889 B CN 104727889B
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- oil
- input channel
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- machine
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Classifications
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- 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
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
-
- 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
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
- F01M2001/0261—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the camshaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil, which includes：Oil sump, the vertical oil input channel being connected with the oil sump in the diesel-engine body, the machine oil prevented in vertical oil input channel set on the vertical oil input channel bottom are back to the check valve of the oil sump, the lubricating oil pump with being connected at the top of the vertical oil input channel；Lubricating oil pump is all sealed in machine oil in the vertical oil input channel after shutting down using check valve, and when being again started up, machine oil can be extracted into oil leab by lubricating oil pump rapidly.It solves the problems, such as to obtain slowly on machine oil during engine start, effectively solves the problems such as engine Bearing score, scuffing of cylinder bore.
Description
The application is divisional application, the application number of original application：2012102229247, the applying date：2012-06-29, invention
Title：The lubricant passage way and its method of work of diesel engine.
Technical field
The present invention relates to a kind of lubricant passage ways and its method of work of diesel engine for preventing machine oil from flowing back for engine.
Background technology
Engine lubrication mode, which is generally divided into, gets rid of two kinds of oil lubrication and forced draught lubrication, and it is to utilize disc to get rid of oil lubrication
Splashing machine oil in crankcase is got rid of to oil leab, if its feature be engine operating will machine oil throw away, work can
It leans on, but lubrication pressure is small, so general only use on subminiature engine.Most of engine can all use forced draught
The mode of lubrication, i.e., set lubricating oil pump in lubricant passage way, and machine oil suction is pressed to each of engine by lubricating oil pump again from oil sump
Locate lubricant passage way, this machine oil with certain pressure can guarantee that friction pair is adequately lubricated everywhere.But forced draught
The shortcomings that lubricating system be it is each the time that lubricating oil pump sucks out oil can lag when starting engine, often engine has been
Through operation one or two minute, there are no machine oil for lubricant passage way, longer especially for lubricating oil pump oil suction road, lubricating oil pump installation site compared with
High situation, pump oil lag time with regard to longer, at this moment if engine continues to run with and cannot get oil lubricating, will result in
Dry grinding, leads to the abrasion of connecting rod bearing shell, bent axle, piston, serious situation can cause Bearing score, scuffing of cylinder bore.After engine is shut down, vertical machine
Machine oil in oil duct will be flowed back into oil sump, and when starting engine every time, inorganic oil, lubricating oil pump need on lubricating oil pump oil suction road
By the air of oil suction road intracavitary it is all drained after can just pump out machine oil, lubricating oil pump oil suction road is longer and lubricating oil pump installation site
Higher situation, pump oil time will be very long.
Invention content
The technical problems to be solved by the invention be to provide it is a kind of can make machine oil quickly pump out and Rapid Implementation lubrication
The lubricant passage way and its method of work of diesel engine.
To solve the above problems, the lubricant passage way of diesel engine provided by the invention, including：Oil sump, set on the diesel engine machine
The vertical oil input channel being connected with the oil sump in body, the machine oil prevented in vertical oil input channel set on the vertical oil input channel bottom
The check valve for being back to the oil sump, the lubricating oil pump being connected with the vertical oil input channel top.Between lubricating oil pump and oil sump
Check valve is set, the machine oil in the vertical oil input channel after a shutdown can be avoided all to be back in the oil sump, i.e.,：After shutdown
Machine oil is all sealed in the vertical oil input channel using check valve, when being again started up, machine oil can be extracted into profit by lubricating oil pump rapidly
Grease way.It solves the problems, such as to obtain slowly on machine oil during engine start, effectively solves the problems such as engine Bearing score, scuffing of cylinder bore.
As a preferred option, the check valve includes：It tightly fits in the tube-like envelope of the vertical oil input channel bottom, set
In the valve body in shell and the sealing plate being covered in the top port of shell, in the top of the valve body and the sealing plate
Centre is connected.
As further preferred scheme, the valve body includes center valve rod, the multi-disc set on the center stem bottom is led
To flap, each flap that is oriented to is suitable for being immersed in the oil sump, with the buoyancy using machine oil to each guiding flap, to mitigate gravity
Influence to the valve body conducive to after lubricating oil pump is opened, can open the check valve easily.
Outer diameter at the top port of shell is less than the outer diameter of the middle and lower part of shell, and the diameter of sealing plate is less than in shell
The outer diameter of lower part, and the internal diameter of the top port more than shell, described in realizing and be completely covered using the smaller sealing plate of diameter
The purpose of the top port of shell, and then avoid the occurrence of the inner wall of sealing plate and shell there is a situation where rub, it is ensured that it is unidirectional
The smooth unlatching of valve.
Each flap central symmetry that is oriented to is centrally located on valve rod；Each flap that is oriented to is suitable for and small of the inner wall of the shell
Gap coordinates, so that during the check valve is opened and closed, center valve rod is suitable for axial displacement, it is ensured that check valve is opened and closed reliable
Property.
It is described to be oriented to flap and radius of the radial clearance of the outer casing inner wall less than the sealing plate and the shell
The difference of top port radius, the top end that the shell cannot be completely covered to prevent the sealing plate from occurring in use
The situation of mouth, it is ensured that cut-off effect.
The lubricating oil pump is rotor-type oil pump, and the end transmission of the camshaft of rotor and diesel engine in lubricating oil pump connects
It connects.
Further, the high-pressure oil passage being connected with the high-voltage oil cavity of the lubricating oil pump is equipped with oil strainer transition seat；Oil strainer
The end face of transition seat and organization seal oil chamber, being equipped between the seal oil chamber and the oil sump prevents the seal oil chamber
The excessively high pressure limiting valve of oil pressure；Pressure limiting valve makes filtering base end face be connected with the seal oil chamber of organization with oil sump, it is also one
Check valve just leads to when engine oil pressure is high, and engine oil pressure low hold is closed.
The method of work of the lubricant passage way of above-mentioned diesel engine, it is characterised in that including：After lubricating oil pump is opened, described vertical
Negative pressure is formed in oil input channel, check valve is opened, the vertical oil inlet that the machine oil in oil sump enters after coarse strainer coarse filtration through check valve
Road, then the dark oil duct by the twice square crossing in body enter the low pressure oil pocket of lubricating oil pump, the high-voltage oil cavity of lubricating oil pump
The high pressure oil of output enters one by the end face of oil strainer transition seat and the seal oil chamber of organization；In the seal oil chamber
Machine oil introduces oil cooler through the first external oil pipe, then enters oil filter through the second external oil pipe（The oil filtration
Device is fixed on oil strainer transition seat）, then dark oil duct before the oil strainer stud introducing main bearing shell through oil filter, reaches
It is divided to oil circuit at two after main bearing shell, lubricates connecting rod bearing shell by crankshaft oil passage all the way, then returned in engine oil pond through oil return hole；Another way
Oil cylinder head way is introduced and into rocker arm shaft by third external oil pipe, rocking arm is lubricated, is then flowed back by pushing rod sleeve
In engine oil pond.
The present invention has positive effect relative to the prior art：Being set between lubricating oil pump and oil sump for the present invention prevents
The check valve of machine oil reflux solves the problems, such as to obtain slowly on machine oil during engine start, effectively solves the drawing of engine Bearing score
The problems such as cylinder.The sealing plate is formed by sheet metal punching, and valve body employs nylon material to mitigate its weight.This check valve
The dead weight of valve body and sealing plate is utilized to be tightly attached to shell upper surface, so that machine oil more than shell is blocked without flowing
In oil return bottom case.For unidirectional valve position substantially in oil sump, machine oil can be by there are buoyancy, when making the first oil suction of lubricating oil pump to valve body
The buoyancy overcomes the gravity of valve body and sealing plate, machine oil is sucked out, machine oil is all sealed in oil using check valve after shutdown
In road, machine oil can be extracted into oil leab by lubricating oil pump soon when being again started up.
Description of the drawings
Fig. 1 is the structure diagram of the lubricant passage way of the diesel engine of the present invention；
Fig. 2 is the cross section view of the check valve of the present invention；
Fig. 3 is the vertical view of Fig. 2；
Fig. 4 is the structure chart of valve body；
Fig. 5 is the A-A cross section views of the valve body in Fig. 4；
Fig. 6 is the bottom view of Fig. 4.
Specific embodiment
See Fig. 1 to 6, the lubricant passage way of the diesel engine of the present embodiment includes：Oil sump, in the diesel-engine body with institute
State vertical oil input channel, the machine oil prevented in vertical oil input channel set on the vertical oil input channel bottom that oil sump is connected be back to it is described
The check valve 2 of oil sump, the coarse strainer 1 set on 2 bottom of check valve（Coarse strainer 1 is tiny mesh plate）, with it is described it is vertical into
The lubricating oil pump 3 being connected at the top of oil duct.Check valve 2 between lubricating oil pump 3 and oil sump is set, can be avoided described vertical after a shutdown
Machine oil in oil input channel is all back in the oil sump, i.e.,：Using check valve machine oil is all sealed in after shutdown described vertical
In oil input channel, when being again started up, machine oil can be extracted into oil leab by lubricating oil pump rapidly.When solving engine start on machine oil
Slow problem effectively solves the problems such as engine Bearing score, scuffing of cylinder bore.Conventional one-way valve can be selected in the check valve.
As the preferred embodiment of the check valve, the check valve 2 includes：Tightly fit in the vertical oil input channel bottom
Tube-like envelope c, the valve body b in shell c and the sealing plate a being covered in the top port of shell c, the top of the valve body b
Portion is connected with the center of the sealing plate a.
The valve body b includes center valve rod b1, the multi-disc set on the center valve rod b1 bottoms is oriented to flap b2, each guide valve
Valve b2 is suitable for being immersed in the oil sump, with the buoyancy using machine oil to each guiding flap b2, to mitigate gravity to the valve body
Influence, make during 3 first oil suction of lubricating oil pump that the gravity of valve body b and sealing plate a can be overcome and quickly by machine by the buoyancy
Oil is sucked out.
The outer diameter of middle and lower part of the outer diameter less than shell c at the top port of shell c, the diameter of sealing plate a are less than shell c
Middle and lower part outer diameter, and more than shell c top port internal diameter, with realize be completely covered using the smaller sealing plate of diameter
The purpose of the top port of the shell c, and then avoid the occurrence of the inner wall of sealing plate and shell c there is a situation where rub, it is ensured that
The smooth unlatching of check valve 2.
Each flap b2 central symmetries that are oriented to are centrally located on valve rod b1；Each flap b2 that is oriented to is suitable for the shell c's
Inner wall small―gap suture coordinates, so that during the check valve 2 is opened and closed, center valve rod b1 is suitable for axial displacement, it is ensured that unidirectional
The reliability that valve 2 is opened and closed.
It is described to be oriented to flap b2 and radius of the radial clearance of the shell c inner walls less than the sealing plate and the shell
Top port radius difference, the top that the shell cannot be completely covered to prevent the sealing plate from occurring in use
The situation of port, it is ensured that cut-off effect.
The lubricating oil pump 3 is rotor-type oil pump, and the end transmission of the camshaft of rotor and diesel engine in lubricating oil pump connects
It connects.
The high-pressure oil passage being connected with the high-voltage oil cavity of the lubricating oil pump 3 is equipped with oil strainer transition seat 10；Oil strainer transition
The end face of seat 10 and organization seal oil chamber, are equipped with the oil for preventing the seal oil chamber between the seal oil chamber and the oil sump
Press through high pressure limiting valve 4.
The method of work of the lubricant passage way of above-mentioned diesel engine, including：After lubricating oil pump 3 is opened, in the vertical oil input channel
Negative pressure is formed, check valve 2 is opened, the vertical oil input channel that the machine oil in oil sump enters after 1 coarse filtration of coarse strainer through check valve 2, so
The dark oil duct by the twice square crossing in body enters the low pressure oil pocket of lubricating oil pump 3, the high-voltage oil cavity output of lubricating oil pump 3 afterwards
High pressure oil enter one by the end face of oil strainer transition seat 10 and the seal oil chamber of organization；Machine in the seal oil chamber
Oil introduces oil cooler 9 through the first external oil pipe 7, then enters oil filter 8 through the second external oil pipe（The oil filtration
Device 8 is fixed on oil strainer transition seat 10）, it is then dark oily before the oil strainer stud introducing main bearing shell 5 through oil filter 8
Road be divided to oil circuit at two after reaching main bearing shell 5, all the way by crankshaft oil passage lubrication connecting rod bearing shell and other main bearing shell, Ran Houjing at two
Oil return hole is returned in engine oil pond；Another way introduces oil cylinder head way and into rocker arm shaft by third external oil pipe 6, and rocking arm is carried out
Lubrication, is then flowed back by pushing rod sleeve in engine oil pond, a cycle of lubricant passage way entire so just completes.
Oil cooler 9 is by enough groups of fins into and being arranged in flywheel fan end face, can prevent machine oil temperature in this way
Spend height.
The check valve is vertically mounted in engine oil pump oil input channel, and valve body b is manufactured using nylon material, to mitigate
Its weight, valve body b are linked together with sealing plate a by the way of rivet hot, and sealing plate a is formed using sheet metal punching, the machine
The dead weight that valve body b and sealing plate a is utilized in one-way valve of oil duct is tightly attached to shell c upper surfaces so that the machine oil of more than shell c is blocked
Without flowing back into oil sump.
The check valve installation site need to only overcome valve substantially in oil sump when ensuring that the first oil suction of lubricating oil pump in this way
Machine oil can be sucked out, machine oil is all sealed in oil duct using check valve after shutdown, again after the gravity of body b and sealing plate a
Machine oil can be extracted into oil leab by lubricating oil pump soon during startup.
Claims (2)
1. a kind of lubricant passage way of diesel engine, it is characterised in that including：Oil sump, in the diesel-engine body with the oil sump
Connected vertical oil input channel, the machine oil prevented in vertical oil input channel set on the vertical oil input channel bottom are back to the oil sump
Check valve, the lubricating oil pump with being connected at the top of the vertical oil input channel；Lubricating oil pump all seals machine oil after shutting down using check valve
In the vertical oil input channel, when being again started up, machine oil can be extracted into oil leab by lubricating oil pump rapidly；
The check valve includes：It tightly fits in the tube-like envelope of the vertical oil input channel bottom, the valve body in shell and covers
The sealing plate being placed in the top port of shell, the top of the valve body are connected with the center of the sealing plate；
The valve body includes：Center valve rod, the multi-disc set on the center stem bottom are oriented to flap, and each flap that is oriented to is suitable for impregnating
In the oil sump;
Outer diameter at the top port of the shell is less than the outer diameter of the middle and lower part of shell, and the diameter of sealing plate is less than in shell
The outer diameter of lower part, and the internal diameter of the top port more than shell；The radial clearance for being oriented to flap and the outer casing inner wall is small
In the difference of the top port radius of the radius and shell of the sealing plate；
The lubricating oil pump is rotor-type oil pump, and the end of the camshaft of rotor and diesel engine in lubricating oil pump is sequentially connected.
2. a kind of method of work of the lubricant passage way of diesel engine as described in claim 1, it is characterised in that including：Lubricating oil pump is opened
Qi Hou forms negative pressure in the vertical oil input channel, and check valve is opened, and the machine oil in oil sump is after coarse strainer coarse filtration through check valve
Enter vertical oil input channel, then the dark oil duct by the twice square crossing in body enter the low pressure oil pocket of lubricating oil pump, machine
The high pressure oil of the high-voltage oil cavity output of oil pump enters one by the end face of oil strainer transition seat and the seal oil chamber of organization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021941.8A CN104727889B (en) | 2012-06-29 | 2012-06-29 | A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222924.7A CN102691543B (en) | 2012-06-29 | 2012-06-29 | Lubricant oil passage of diesel engine and working method of lubricant oil passage |
| CN201510021941.8A CN104727889B (en) | 2012-06-29 | 2012-06-29 | A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222924.7A Division CN102691543B (en) | 2012-06-29 | 2012-06-29 | Lubricant oil passage of diesel engine and working method of lubricant oil passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104727889A CN104727889A (en) | 2015-06-24 |
| CN104727889B true CN104727889B (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510021941.8A Active CN104727889B (en) | 2012-06-29 | 2012-06-29 | A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil |
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| Country | Link |
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| CN (1) | CN104727889B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218098B (en) * | 2017-06-22 | 2019-06-07 | 中车大连机车车辆有限公司 | High-power diesel engine machine oil pre-lubrication method |
| CN112392571B (en) * | 2020-10-30 | 2024-04-05 | 广西玉柴机器股份有限公司 | Engine oil pump and engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190417A (en) * | 1983-04-12 | 1984-10-29 | Mitsubishi Heavy Ind Ltd | Oil feeding apparatus cylinder |
| CN201095993Y (en) * | 2007-11-05 | 2008-08-06 | 江苏常发实业集团有限公司 | Small-sized single cylinder diesel engine lubricating system |
| CN201162554Y (en) * | 2008-03-08 | 2008-12-10 | 罗康 | Pre-lubrication system for engine valve actuating mechanism |
| CN102159826A (en) * | 2008-07-15 | 2011-08-17 | 德尔福技术控股有限公司 | Improvements relating to fuel pumps |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006097491A (en) * | 2004-09-28 | 2006-04-13 | Aisin Seiki Co Ltd | Oil feeding device for engine |
-
2012
- 2012-06-29 CN CN201510021941.8A patent/CN104727889B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190417A (en) * | 1983-04-12 | 1984-10-29 | Mitsubishi Heavy Ind Ltd | Oil feeding apparatus cylinder |
| CN201095993Y (en) * | 2007-11-05 | 2008-08-06 | 江苏常发实业集团有限公司 | Small-sized single cylinder diesel engine lubricating system |
| CN201162554Y (en) * | 2008-03-08 | 2008-12-10 | 罗康 | Pre-lubrication system for engine valve actuating mechanism |
| CN102159826A (en) * | 2008-07-15 | 2011-08-17 | 德尔福技术控股有限公司 | Improvements relating to fuel pumps |
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| CN104727889A (en) | 2015-06-24 |
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