CN104727886A - Lubricating oil way for preventing engine oil backflow - Google Patents
Lubricating oil way for preventing engine oil backflow Download PDFInfo
- Publication number
- CN104727886A CN104727886A CN201510021384.XA CN201510021384A CN104727886A CN 104727886 A CN104727886 A CN 104727886A CN 201510021384 A CN201510021384 A CN 201510021384A CN 104727886 A CN104727886 A CN 104727886A
- Authority
- CN
- China
- Prior art keywords
- oil
- input channel
- shell
- pump
- way valve
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a lubricating oil way for preventing engine oil backflow. The lubricating oil way comprises an oil sump, a vertical oil inlet way arranged in a diesel engine body and connected with the oil sump, a one-way valve arranged at the bottom of the vertical oil inlet way and used for preventing engine oil in the vertical oil inlet way from flowing back to the oil sump and an oil pump communicated with the top of the vertical oil inlet way. After the oil pump is shut down, the one-way valve is utilized to seal all engine oil in the vertical oil inlet way. When starting is performed again, the oil pump can rapidly pump engine oil into the lubricating oil way. The problem that engine oil supply is slow during engine starting is solved, and the problems of bearing scoring, cylinder scoring and the like of an engine are effectively solved.
Description
The application is divisional application, the application number of original application: 2012102229247, the applying date: 2012-06-29, denomination of invention: the lubricating oil path of diesel engine and method of work thereof.
Technical field
The present invention relates to a kind of lubricating oil path and method of work thereof of the diesel engine preventing machine oil from refluxing for motor.
Background technique
Engine lubrication mode is generally divided into gets rid of oil lubrication and forced draught lubricates two kinds, getting rid of oil lubrication is utilize disc that the splashing machine oil in crankcase is got rid of to oil leab, will throw away by machine oil as long as its feature is engine running, reliable operation, but lubrication pressure is little, only use on subminiature motor so general.The mode that major part motor all can use forced draught to lubricate, namely oil pump is set in lubricating oil path, oil pump presses to machine oil sucking-off the lubricating oil path everywhere of motor again from oil sump, this machine oil with certain pressure can ensure that friction pair is lubricated fully everywhere.But the shortcoming of forced draught lubricating system is when piloting engine at every turn, oil pump can be delayed the time that oil sucks out, motor has run one or two minute often, lubricating oil path does not also have machine oil, special longer for oil pump oil suction road, the situation that oil pump mounting point is higher, pump oil is just longer for lag time, if at this moment motor continues run and can not get oil lubricating, dry grinding will be caused, cause the wearing and tearing of connecting rod bearing shell, bent axle, piston, serious situation can cause Bearing score, scuffing of cylinder bore.After motor is shut down; machine oil in vertical Oil passage will be back in oil sump; when piloting engine at every turn; oil pump oil suction road inorganic oil; oil pump needs just can pump machine oil afterwards by all drained for the air in chamber, oil suction road; the situation that oil pump oil suction road is longer and oil pump mounting point is higher, the pump oil time will be very long.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly machine oil can be made to pump fast and the lubricating oil path of diesel engine of Rapid Implementation lubrication and method of work thereof.
For solving the problem, the lubricating oil path of diesel engine provided by the invention, comprising: oil sump, the vertical oil input channel be connected with described oil sump be located in this diesel-engine body, be located at and prevent the one-way valve that the machine oil in vertical oil input channel is back to described oil sump, the oil pump be connected with described vertical oil input channel top bottom this vertical oil input channel.Between oil pump and oil sump, one-way valve is set; the machine oil in described vertical oil input channel after a shutdown can be avoided all to be back in described oil sump; that is: utilize one-way valve that machine oil is all sealed in described vertical oil input channel after shutdown; when again starting, machine oil can be extracted into oil leab rapidly by oil pump.When solving engine start on machine oil a difficult problem slowly, effectively solve the problems such as motor Bearing score, scuffing of cylinder bore.
As preferred scheme, described one-way valve comprises: the sealing plate tightly fit in the tube-like envelope bottom described vertical oil input channel, being located at the valve body in shell and being covered in the top port of shell, the top of described valve body and described sealing plate central authorities be connected.
As further preferred scheme, described valve body comprises center valve rod, is located at the multi-disc of this center stem bottom guiding flap, each guiding flap is suitable for being immersed in described oil sump, to utilize machine oil to the buoyancy of each guiding flap, alleviate the impact of gravity on described valve body, be beneficial to after oil pump is opened, this one-way valve can be opened easily.
The external diameter at the top port place of shell is less than the external diameter of the middle and lower part of shell, sealing plate diameter be less than the external diameter of the middle and lower part of shell, and be greater than the internal diameter of the top port of shell, to realize adopting the less sealing plate of diameter to cover the object of the top port of described shell completely, and then avoid occurring the situation of sealing plate with the inwall generation friction of shell, ensure that the smooth unlatching of one-way valve.
Each guiding flap Central Symmetry is distributed on the valve rod of center; Each guiding flap is suitable for coordinating with the inwall small―gap suture of described shell, and to make in the process of one-way valve described in opening and closing, center valve rod is suitable for axial displacement, guarantees the reliability of one-way valve opening and closing.
The radial clearance of described guiding flap and described outer casing inner wall be less than described sealing plate the difference of top port radius of radius and described shell, in use there is the situation that can not cover the top port of described shell completely to prevent described sealing plate, ensure that cut-off effect.
Described oil pump is rotor-type oil pump, and the end of the rotor in oil pump and the camshaft of diesel engine is in transmission connection.
Further, the high-pressure oil passage be connected with the high-voltage oil cavity of described oil pump is provided with oil strainer transition seat; The end face of oil strainer transition seat and organization seal oil chamber, be provided with the pressure-limit valve preventing the oil pressure of described seal oil chamber too high between sealing oil pocket and described oil sump; Pressure-limit valve makes filtering base end face be communicated with oil sump with the seal oil chamber of organization, and it is also an one-way valve, and just logical during engine oil pressure height, the low maintenance of engine oil pressure is closed.
The method of work of the lubricating oil path of above-mentioned diesel engine, it is characterized in that comprising: after oil pump is opened, negative pressure is formed in described vertical oil input channel, one-way valve is opened, machine oil in oil sump after thick filtering net coarse filtration through vertical oil input channel that one-way valve enters, the low pressure oil pocket of the dark oil duct ingress engine oil pump of the twice square crossing then in body, the high pressure oil that the high-voltage oil cavity of oil pump exports enters one by the end face of oil strainer transition seat and the seal oil chamber of organization; Machine oil in described seal oil chamber introduces machine oil cooler through the first external oil pipe, then through the second external oil pipe ingress engine oil rectifier (this oil filter is fixed on oil strainer transition seat), then dark oil duct before the oil strainer stud of oil filter introduces main axle bush, two place's oil circuits are divided after arriving main axle bush, connecting rod bearing shell is lubricated through crankshaft oil gallery in one tunnel, then gets back in machine oil pond through spill port; The 3rd external oil pipe of separately leading up to is introduced oil cylinder head way and enters pitman arm shaft, lubricates, be then back in machine oil pond by pushing rod sleeve rocking arm.
The present invention has positive effect relative to prior art: of the present inventionly between oil pump and oil sump, arrange the one-way valve preventing machine oil from reflux, must a slow difficult problem on machine oil when solving engine start, effectively solves the problems such as motor Bearing score scuffing of cylinder bore.Described sealing plate is formed by sheet metal punching, and valve body have employed nylon material to alleviate its weight.This one-way valve make use of valve body and sealing plate deadweight to be close to shell upper-end surface, make the machine oil of more than shell block and can not flow back in oil sump like this.One-way valve position is substantially in oil sump; buoyancy is there is in machine oil to valve body; when making the first oil suction of oil pump can by described buoyancy to overcome valve body and sealing plate gravity; by machine oil sucking-off; utilize one-way valve that machine oil is all sealed in oil duct after shutdown, when again starting, oil pump just can be extracted into oil leab machine oil soon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lubricating oil path of diesel engine of the present invention;
Fig. 2 is the cross section view of one-way valve of the present invention;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the structural drawing of valve body;
Fig. 5 is the A-A cross section view of the valve body in Fig. 4;
Fig. 6 is the worm's eye view of Fig. 4.
Embodiment
See Fig. 1 to 6, the lubricating oil path of the diesel engine of the present embodiment comprises: oil sump, the vertical oil input channel be connected with described oil sump be located in this diesel-engine body, be located at bottom this vertical oil input channel prevent that the machine oil in vertical oil input channel is back to the one-way valve 2 of described oil sump, the thick filtering net 1(thick filtering net 1 be located at bottom this one-way valve 2 is tiny mesh plate), the oil pump 3 that is connected with described vertical oil input channel top.One-way valve 2 is set between oil pump 3 and oil sump; the machine oil in described vertical oil input channel after a shutdown can be avoided all to be back in described oil sump; that is: utilize one-way valve that machine oil is all sealed in described vertical oil input channel after shutdown; when again starting, machine oil can be extracted into oil leab rapidly by oil pump.When solving engine start on machine oil a difficult problem slowly, effectively solve the problems such as motor Bearing score, scuffing of cylinder bore.Described one-way valve can select conventional one-way valve.
As the preferred version of described one-way valve, described one-way valve 2 comprises: the sealing plate a tightly fitting in the tube-like envelope c bottom described vertical oil input channel, be located at the valve body b in shell c and be covered in the top port of shell c, and the top of described valve body b is connected with the central authorities of described sealing plate a.
Described valve body b comprises center valve rod b1, the multi-disc be located at bottom the valve rod b1 of this center leads flap b2, each guiding flap b2 is suitable for being immersed in described oil sump, to utilize machine oil to the buoyancy of each guiding flap b2, alleviate the impact of gravity on described valve body, can by described buoyancy to overcome the gravity of valve body b and sealing plate a and quick by machine oil sucking-off when making the first oil suction of oil pump 3.
The external diameter at the top port place of shell c is less than the external diameter of the middle and lower part of shell c, the diameter of sealing plate a is less than the external diameter of the middle and lower part of shell c, and be greater than the internal diameter of the top port of shell c, to realize adopting the less sealing plate of diameter to cover the object of the top port of described shell c completely, and then avoid occurring the situation of sealing plate with the inwall generation friction of shell c, ensure that the smooth unlatching of one-way valve 2.
Each guiding flap b2 Central Symmetry is distributed on the valve rod b1 of center; Each guiding flap b2 is suitable for coordinating with the inwall small―gap suture of described shell c, and to make in the process of one-way valve described in opening and closing 2, center valve rod b1 is suitable for axial displacement, guarantees the reliability of one-way valve 2 opening and closing.
The radial clearance of described guiding flap b2 and described shell c inwall be less than described sealing plate the difference of top port radius of radius and described shell, in use there is the situation that can not cover the top port of described shell completely to prevent described sealing plate, ensure that cut-off effect.
Described oil pump 3 is rotor-type oil pump, and the end of the rotor in oil pump and the camshaft of diesel engine is in transmission connection.
The high-pressure oil passage be connected with the high-voltage oil cavity of described oil pump 3 is provided with oil strainer transition seat 10; The end face of oil strainer transition seat 10 and organization seal oil chamber, be provided with the pressure-limit valve 4 preventing the oil pressure of described seal oil chamber too high between sealing oil pocket and described oil sump.
The method of work of the lubricating oil path of above-mentioned diesel engine, comprise: after oil pump 3 is opened, negative pressure is formed in described vertical oil input channel, one-way valve 2 is opened, machine oil in oil sump after thick filtering net 1 coarse filtration through vertical oil input channel that one-way valve 2 enters, the low pressure oil pocket of the dark oil duct ingress engine oil pump 3 of the twice square crossing then in body, the high pressure oil that the high-voltage oil cavity of oil pump 3 exports enters one by the end face of oil strainer transition seat 10 and the seal oil chamber of organization; Machine oil in described seal oil chamber introduces machine oil cooler 9 through the first external oil pipe 7, then be fixed on oil strainer transition seat 10 through second this oil filter 8 of external oil pipe ingress engine oil rectifier 8(), then dark oil duct before the oil strainer stud of oil filter 8 introduces main axle bush 5, two place's oil circuits are divided after arriving main axle bush 5, one tunnel, through crankshaft oil gallery lubrication connecting rod bearing shell and other two places main axle bushs, is then got back in machine oil pond through spill port; The 3rd external oil pipe 6 of separately leading up to is introduced oil cylinder head way and enters pitman arm shaft, lubricates rocking arm, is then back in machine oil pond by pushing rod sleeve, and a circulation of whole like this lubricating oil path just completes.
Machine oil cooler 9 is made up of abundant radiating fin, and is arranged in flywheel fan end face, and oil temperature can be prevented so too high.
This one-way valve is vertically mounted in engine oil pump oil input channel, valve body b adopts nylon material manufacture, in order to alleviate its weight, valve body b and sealing plate a adopts the mode of rivet hot to link together, sealing plate a adopts sheet metal punching to form, the deadweight that this Oil passage one-way valve make use of valve body b and sealing plate a is close to shell c upper-end surface, makes the machine oil of more than shell c block and can not flow back in oil sump.
Described one-way valve mounting point is substantially in oil sump; just can by machine oil sucking-off after only need overcoming the gravity of valve body b and sealing plate a when this ensures that thering the first oil suction of oil pump; utilize one-way valve that machine oil is all sealed in oil duct after shutdown, when again starting, oil pump just can be extracted into oil leab machine oil soon.
Claims (2)
1. a lubricating oil path for diesel engine, is characterized in that comprising: oil sump, the vertical oil input channel be connected with described oil sump be located in this diesel-engine body, be located at and prevent the one-way valve that the machine oil in vertical oil input channel is back to described oil sump, the oil pump be connected with described vertical oil input channel top bottom this vertical oil input channel; Oil pump utilizes one-way valve that machine oil is all sealed in described vertical oil input channel after shutting down, and when again starting, machine oil can be extracted into oil leab rapidly by oil pump;
Described one-way valve comprises: the sealing plate tightly fit in the tube-like envelope bottom described vertical oil input channel, being located at the valve body in shell and being covered in the top port of shell, the top of described valve body and described sealing plate central authorities be connected;
Described valve body comprises: center valve rod, be located at the multi-disc guiding flap of this center stem bottom, and each guiding flap is suitable for being immersed in described oil sump;
The external diameter at the top port place of described shell is less than the external diameter of the middle and lower part of shell, sealing plate diameter be less than the external diameter of the middle and lower part of shell, and be greater than the internal diameter of the top port of shell;
Described oil pump is rotor-type oil pump, and the end of the rotor in oil pump and the camshaft of diesel engine is in transmission connection.
2. the method for work of the lubricating oil path of a diesel engine as claimed in claim 1, it is characterized in that comprising: after oil pump is opened, negative pressure is formed in described vertical oil input channel, one-way valve is opened, machine oil in oil sump after thick filtering net coarse filtration through vertical oil input channel that one-way valve enters, the low pressure oil pocket of the dark oil duct ingress engine oil pump of the twice square crossing then in body, the high pressure oil that the high-voltage oil cavity of oil pump exports 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 |
|---|---|---|---|
| CN201510021384.XA CN104727886A (en) | 2012-06-29 | 2012-06-29 | Lubricating oil way for preventing engine oil backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021384.XA CN104727886A (en) | 2012-06-29 | 2012-06-29 | Lubricating oil way for preventing engine oil backflow |
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 (1)
| Publication Number | Publication Date |
|---|---|
| CN104727886A true CN104727886A (en) | 2015-06-24 |
Family
ID=53452210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510021384.XA Pending CN104727886A (en) | 2012-06-29 | 2012-06-29 | Lubricating oil way for preventing engine oil backflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104727886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764370A (en) * | 2015-11-23 | 2017-05-31 | 湖南机油泵股份有限公司 | A kind of uniform rotor-type oil pump of new fuel feeding |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679367Y (en) * | 2004-02-06 | 2005-02-16 | 王玉武 | Lubricating device of I.C. engine |
| US20060065217A1 (en) * | 2004-09-28 | 2006-03-30 | Aisin Seiki Kabushiki Kaisha | Oil supply device for engine |
| 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 |
| JP2009264291A (en) * | 2008-04-25 | 2009-11-12 | Daikyonishikawa Corp | Pump |
| CN102159826A (en) * | 2008-07-15 | 2011-08-17 | 德尔福技术控股有限公司 | Improvements relating to fuel pumps |
-
2012
- 2012-06-29 CN CN201510021384.XA patent/CN104727886A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679367Y (en) * | 2004-02-06 | 2005-02-16 | 王玉武 | Lubricating device of I.C. engine |
| US20060065217A1 (en) * | 2004-09-28 | 2006-03-30 | Aisin Seiki Kabushiki Kaisha | Oil supply device for engine |
| 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 |
| JP2009264291A (en) * | 2008-04-25 | 2009-11-12 | Daikyonishikawa Corp | Pump |
| CN102159826A (en) * | 2008-07-15 | 2011-08-17 | 德尔福技术控股有限公司 | Improvements relating to fuel pumps |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764370A (en) * | 2015-11-23 | 2017-05-31 | 湖南机油泵股份有限公司 | A kind of uniform rotor-type oil pump of new fuel feeding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104879183B (en) | A kind of engine lubrication system | |
| CN103403407B (en) | Internal combustion engine | |
| CN205689435U (en) | Compressor | |
| CN101832252B (en) | Energy-saving automobile water-cooling air compressor | |
| CN107725208A (en) | Cooling engine for motor cycle water | |
| CN104727888A (en) | Lubricating oil way which fast pumps oil into lubricating oil channel and is used for diesel engine | |
| CN104727889A (en) | Diesel engine lubricating oil way suitable for rapidly pumping out engine oil | |
| CN102691543B (en) | Lubricant oil passage of diesel engine and working method of lubricant oil passage | |
| CN104727886A (en) | Lubricating oil way for preventing engine oil backflow | |
| JP3231192B2 (en) | Breather device in engine | |
| CN104675474A (en) | Diesel engine lubricating oil way pumping oil and lubricating rapidly | |
| CN202732020U (en) | Lubricating oil passage of diesel engine | |
| CN104727885A (en) | Lubricating oil way of diesel engine with one-way valve and working method thereof | |
| CN104727884A (en) | Lubricant passage way of diesel engine suitable for solving scuffing of cylinder bore of engine and working method of lubricant passage way | |
| CN104727890A (en) | Lubricating oil way of diesel engine and working method thereof | |
| CN104727887A (en) | Lubricating oil path of diesel engine and working method thereof | |
| CN104675475A (en) | Lubricating oil circuit for quickly lubricating diesel engine and method for operating lubricating oil circuit | |
| CN104696041A (en) | Diesel engine oil gallery capable of solving engine bearing score | |
| CN203742931U (en) | Compressor and crankshaft thereof | |
| CN207297184U (en) | A kind of cooling engine for motor cycle water | |
| CN104454075A (en) | Novel universal gasoline engine lubricating system | |
| CN203476434U (en) | Configuration improvement of engine oil one-way valve | |
| CN202732024U (en) | Machine oil passage one-way valve capable of preventing machine oil from flowing back | |
| CN204253125U (en) | General gasoline engine self lubricating system | |
| CN2864152Y (en) | Totally-enclosed refrigeration compressor oil-reducing housing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |