CN102691543A - Lubricant oil passage of diesel engine and working method of lubricant oil passage - Google Patents
Lubricant oil passage of diesel engine and working method of lubricant oil passage Download PDFInfo
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- CN102691543A CN102691543A CN2012102229247A CN201210222924A CN102691543A CN 102691543 A CN102691543 A CN 102691543A CN 2012102229247 A CN2012102229247 A CN 2012102229247A CN 201210222924 A CN201210222924 A CN 201210222924A CN 102691543 A CN102691543 A CN 102691543A
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Abstract
The invention relates to a lubricant oil passage of a diesel engine and a working method of the lubricant oil passage. The lubricant oil passage comprises an oil bath, a vertical lubricant oil feeding passage, a one-way valve and an engine oil pump, wherein the vertical lubricant oil feeding passage is arranged inside a diesel engine body and is connected with the oil bath; the one-way valve is arranged at the bottom of the vertical lubricant oil feeding passage and is used for preventing the engine oil in the vertical lubricant oil feeding passage from flowing back to the oil bath; and the engine oil pump is communicated with the top part of the vertical lubricant oil feeding passage. By arranging the one-way valve between the engine oil pimp and the oil bath, the engine oil in the vertical lubricant oil feeding passage is prevented from flowing back to the oil bath completely when the engine is stopped, i.e., the engine oil is completely sealed in the vertical lubricant oil feeding passage by using the one-way valve after the engine is stopped; when the engine is started again, the engine oil can be pumped into the lubricant oil passage by the engine oil pump rapidly. The difficult problem that the engine oil is fed slowly when the engine is started is solved; and the problems of bearing score, scuffing of cylinder bore and the like of engines are solved effectively.
Description
Technical field
The present invention relates to a kind of lubricating oil path and method of work thereof of preventing the diesel engine that machine oil refluxes that is used for motor.
Background technique
The engine lubrication mode generally is divided into gets rid of lubricated two kinds of oil lubrication and forced draught; Getting rid of oil lubrication is to utilize disc to get rid of the machine oil that splashes in the crankcase to oil leab; Its feature is as long as engine running will throw away by machine oil; Reliable operation, but lubrication pressure is little, so general is used on subminiature motor.Most of motor all can use the lubricated mode of forced draught; Oil pump promptly is set in lubricating oil path; Oil pump is pressed to the lubricating oil path everywhere of motor to the machine oil sucking-off again from oil sump, and this machine oil that has certain pressure can guarantee that friction pair obtains lubricated fully everywhere.But the shortcoming of forced draught lubricating system is when piloting engine at every turn, and oil pump can lag behind the time that oil sucks out, and motor moved one or two minute often; Lubricating oil path does not also have machine oil; Longer for oil pump oil suction road especially, oil pump mounting point condition with higher, pump oil is just longer lag time; If at this moment motor continues operation and can not get oil lubricating; Will cause dry grinding, cause connecting rod bearing shell, bent axle, wearing for piston, serious situation can cause Bearing score, scuffing of cylinder bore.Behind the engine shutdown; Machine oil in the vertical Oil passage will be back in the oil sump; When piloting engine, oil pump oil suction road is inorganic oil at every turn, and oil pump just can pump machine oil after need the air in the chamber, oil suction road all having been arranged; The long and oil pump mounting point condition with higher in oil pump oil suction road, the pump oil time will be very long.
Summary of the invention
Technical problem to be solved by this invention provides a kind of lubricating oil path and method of work thereof that machine oil is pumped fast and implement lubricated diesel engine fast.
For addressing the above problem; The lubricating oil path of diesel engine provided by the invention comprises: oil sump, be located at the vertical oil input channel that links to each other with said oil sump in this diesel-engine body, be located at the oil pump that the machine oil in the vertical oil input channel is back to the one-way valve of said oil sump, is connected with said vertical oil input channel top that prevents of this vertical oil input channel bottom.Between oil pump and oil sump, one-way valve is set; Can avoid that the machine oil in the said vertical oil input channel all is back in the said oil sump after shutdown; That is: utilize one-way valve all to be sealed in machine oil in the said vertical oil input channel after the shutdown; When starting once more, oil pump can be extracted into oil leab with machine oil rapidly.Get a difficult problem slowly when having solved engine start on the machine oil, effectively solved problems such as motor Bearing score, scuffing of cylinder bore.
As preferred scheme, said one-way valve comprises: tightly fit in said vertical oil input channel bottom tube-like envelope, be located at the valve body in the shell and be covered in the sealing plate on the top port of shell, the top of said valve body and said sealing plate central authorities link to each other.
As further preferred scheme; Said valve body comprises the center valve rod, is located at the multi-disc guiding flap of this center stem bottom; Each flap that leads is suitable for being immersed in the said oil sump, to utilize the buoyancy of machine oil to each guiding flap, alleviates the influence of gravity to said valve body; Be beneficial to after oil pump is opened, can open this one-way valve 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 less than the external diameter of the middle and lower part of shell; And internal diameter greater than the top port of shell; Adopt the less sealing plate of diameter to cover the purpose of the top port of said shell fully with realization, and then avoid occurring the inwall generation friction situation of sealing plate, guaranteed the smooth unlatching of one-way valve with shell.
Each flap center of leading is symmetrically distributed on the valve rod of center; Each flap that leads is suitable for the little Spielpassung of inwall with said shell, so that in the process that opens and closes said one-way valve, the center valve rod is suitable for axial displacement, guarantees the reliability that one-way valve opens and closes.
The radial clearance of said guiding flap and said outer casing inner wall less than said sealing plate top port radius poor of radius and said shell; To prevent that the situation of the top port of said shell from use appearring covering fully in said sealing plate, guaranteed by effect.
Said oil pump is a rotor-type oil pump, and the end of the rotor in the oil pump and the camshaft of diesel engine is in transmission connection.
Further, the high-pressure oil passage that links to each other with the high-voltage oil cavity of said oil pump is provided with oil strainer transition seat; The end face of oil strainer transition seat and organization seal oil chamber are provided with the too high pressure-limit valve of oil pressure that prevents said seal oil chamber between sealing oil pocket and the said oil sump; Pressure-limit valve makes the filtering base end face be communicated with oil sump with the seal oil chamber of organization, and it also is an one-way valve, and is just logical when engine oil pressure is high, and 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; In said vertical oil input channel, form negative pressure, one-way valve is opened, the machine oil in the oil sump through the thick filtering net coarse filtration after the vertical oil input channel that one-way valve gets into; Get into the low pressure oil pocket of oil pump then through the dark oil duct of the twice square crossing in the body, the high pressure oil of the high-voltage oil cavity output of oil pump gets in the seal oil chamber by the end face of oil strainer transition seat and organization; Machine oil in the said seal oil chamber is introduced machine oil cooler through the first external oil pipe; Get into oil filter (this oil filter is fixed on the oil strainer transition seat) through the second external oil pipe then; Introduce the preceding dark oil duct of main axle bush then through the oil strainer double-screw bolt of oil filter; Divide two place's oil circuits after arriving main axle bush, the one tunnel through the lubricated connecting rod bearing shell of crankshaft oil gallery, gets back in the machine oil pond through spill port then; Another road is introduced the cylinder cap oil duct and is got into pitman arm shaft through the 3rd external oil pipe, and rocking arm is lubricated, and is back in the machine oil pond through pushing rod sleeve then.
The present invention has positive effect with respect to existing technology: the one-way valve that prevents that machine oil from refluxing that between oil pump and oil sump, is provided with of the present invention, get a difficult problem slowly when having solved engine start on the machine oil, and effectively solved problems such as motor Bearing score scuffing of cylinder bore.Said sealing plate is to be formed by the sheet metal punching out, and valve body has adopted nylon material to alleviate its weight.This one-way valve utilized valve body and sealing plate deadweight be close to the shell upper-end surface, make the above machine oil of shell block and can not flow back in the oil sump like this.The one-way valve position is basically in oil sump; There is buoyancy in machine oil to valve body; When making the first oil suction of oil pump can by said buoyancy overcome valve body and sealing plate gravity; With the machine oil sucking-off, utilize one-way valve all to be sealed in machine oil in the oil duct after the shutdown, oil pump just can be extracted into oil leab to machine oil soon when starting once more.
Description of drawings
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 among 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 present embodiment comprises: oil sump, be located at the vertical oil input channel that links to each other with said oil sump in this diesel-engine body, the machine oil in the vertical oil input channel that prevents of being located at this vertical oil input channel bottom is back to the one-way valve 2 of said oil sump, is located at the thick filtering net 1 (thick filtering net 1 is tiny mesh plate) of these one-way valve 2 bottoms, the oil pump 3 that is connected with said vertical oil input channel top.One-way valve 2 is set between oil pump 3 and oil sump; Can avoid that the machine oil in the said vertical oil input channel all is back in the said oil sump after shutdown; That is: utilize one-way valve all to be sealed in machine oil in the said vertical oil input channel after the shutdown; When starting once more, oil pump can be extracted into oil leab with machine oil rapidly.Get a difficult problem slowly when having solved engine start on the machine oil, effectively solved problems such as motor Bearing score, scuffing of cylinder bore.Said one-way valve can be selected conventional one-way valve for use.
Preferred version as said one-way valve; Said one-way valve 2 comprises: tightly fit in said vertical oil input channel bottom tube-like envelope c, be located at the valve body b in the shell c and be covered in the sealing plate a on the top port of shell c, the top of said valve body b links to each other with the central authorities of said sealing plate a.
Said valve body b comprises center valve rod b1, is located at the multi-disc guiding flap b2 of this center valve rod b1 bottom; Each flap b2 that leads is suitable for being immersed in the said oil sump; To utilize the buoyancy of machine oil to each guiding flap b2; Alleviate the influence of gravity, can overcome the gravity of valve body b and sealing plate a and fast with the machine oil sucking-off by said buoyancy when making the first oil suction of oil pump 3 said valve body.
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 internal diameter greater than the top port of shell c; Adopt the less sealing plate of diameter to cover the purpose of the top port of said shell c fully with realization, and then avoid occurring the inwall generation friction situation of sealing plate, guaranteed the smooth unlatching of one-way valve 2 with shell c.
Each flap b2 center of leading is symmetrically distributed on the valve rod b1 of center; Each flap b2 that leads is suitable for the little Spielpassung of inwall with said shell c, so that in the process that opens and closes said one-way valve 2, center valve rod b1 is suitable for axial displacement, guarantees the reliability that one-way valve 2 opens and closes.
The radial clearance of said guiding flap b2 and said shell c inwall less than said sealing plate top port radius poor of radius and said shell; To prevent that the situation of the top port of said shell from use appearring covering fully in said sealing plate, guaranteed by effect.
Said oil pump 3 is a rotor-type oil pump, and the end of the rotor in the oil pump and the camshaft of diesel engine is in transmission connection.
The high-pressure oil passage that links to each other with the high-voltage oil cavity of said 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 are provided with the too high pressure-limit valve 4 of oil pressure that prevents said seal oil chamber between sealing oil pocket and the said oil sump.
The method of work of the lubricating oil path of above-mentioned diesel engine; Comprise: after oil pump 3 is opened; In said vertical oil input channel, form negative pressure, one-way valve 2 is opened, the machine oil in the oil sump through thick filtering net 1 coarse filtration after the vertical oil input channel that one-way valve 2 gets into; Get into the low pressure oil pocket of oil pump 3 then through the dark oil duct of the twice square crossing in the body, the high pressure oil of the high-voltage oil cavity output of oil pump 3 gets in the seal oil chamber by the end face of oil strainer transition seat 10 and organization; Machine oil in the said seal oil chamber is introduced machine oil cooler 9 through the first external oil pipe 7; Get into oil filter 8 (this oil filter 8 is fixed on the oil strainer transition seat 10) through the second external oil pipe then; Introduce the preceding dark oil duct of main axle bush 5 then through the oil strainer double-screw bolt of oil filter 8; Arrive main axle bush 5 backs and divide two place's oil circuits, the one tunnel through the lubricated connecting rod bearing shell of crankshaft oil gallery and other two places main axle bushs, get back in the machine oil pond through spill port then; Another road is introduced the cylinder cap oil duct and is got into pitman arm shaft through the 3rd external oil pipe 6, and rocking arm is lubricated, and is back in the machine oil pond through pushing rod sleeve then, and a circulation of whole like this lubricating oil path has just been accomplished.
Machine oil cooler 9 is made up of abundant radiating fin, and is arranged in the flywheel fan end face, can prevent that like this oil temperature is too high.
This one-way valve is vertically mounted in the engine oil pump oil input channel; Valve body b adopts the nylon material manufacturing; In order to alleviate its weight, valve body b and sealing plate a adopt the mode of rivet hot to link together, and sealing plate a adopts the sheet metal punching out to form; This Oil passage one-way valve has utilized the deadweight of valve body b and sealing plate a to be close to shell c upper-end surface, makes the above machine oil of shell c block and can not flow back in the oil sump.
Said one-way valve mounting point is basically in oil sump; Only need overcome when so just having guaranteed the first oil suction of oil pump just can be with the machine oil sucking-off behind the gravity of valve body b and sealing plate a; Utilize one-way valve all to be sealed in machine oil in the oil duct after the shutdown, oil pump just can be extracted into oil leab to machine oil soon when starting once more.
Claims (9)
1. the lubricating oil path of a diesel engine is characterized in that comprising: oil sump, be located at the vertical oil input channel that links to each other with said oil sump in this diesel-engine body, be located at the oil pump that the machine oil in the vertical oil input channel is back to the one-way valve of said oil sump, is connected with said vertical oil input channel top that prevents of this vertical oil input channel bottom.
2. the lubricating oil path of diesel engine according to claim 1; It is characterized in that: said one-way valve comprises: tightly fit in said vertical oil input channel bottom tube-like envelope, be located at the valve body in the shell and be covered in the sealing plate on the top port of shell, the top of said valve body and said sealing plate central authorities link to each other.
3. the lubricating oil path of diesel engine according to claim 2, it is characterized in that: said valve body comprises: the center valve rod, be located at the multi-disc guiding flap of this center stem bottom, each flap that leads is suitable for being immersed in the said oil sump.
4. the lubricating oil path of diesel engine according to claim 2; It is characterized in that: the external diameter at the top port place of said shell is less than the external diameter of the middle and lower part of shell; Sealing plate diameter less than the external diameter of the middle and lower part of shell, and greater than the internal diameter of the top port of shell.
5. the lubricating oil path of diesel engine according to claim 3, it is characterized in that: each flap center of leading is symmetrically distributed on the valve rod of center; Each flap that leads is suitable for the little Spielpassung of inwall with said shell.
6. the lubricating oil path of diesel engine according to claim 5 is characterized in that: the radial clearance of said guiding flap and said outer casing inner wall less than said sealing plate top port radius poor of radius and said shell.
7. the lubricating oil path of diesel engine according to claim 1, it is characterized in that: said oil pump is a rotor-type oil pump, the end of the rotor in the oil pump and the camshaft of diesel engine is in transmission connection.
8. the lubricating oil path of diesel engine according to claim 1, it is characterized in that: the high-pressure oil passage that links to each other with the high-voltage oil cavity of said oil pump is provided with oil strainer transition seat;
The end face of oil strainer transition seat and organization seal oil chamber are provided with the too high pressure-limit valve of oil pressure that prevents said seal oil chamber between sealing oil pocket and the said oil sump.
9. 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; In said vertical oil input channel, form negative pressure; One-way valve is opened; After the vertical oil input channel that one-way valve gets into gets into the low pressure oil pocket of oil pump then through the dark oil duct of the twice square crossing in the body, the high pressure oil of the high-voltage oil cavity output of oil pump gets in the seal oil chamber by the end face of oil strainer transition seat and organization machine oil in the oil sump through the thick filtering net coarse filtration;
Machine oil in the said seal oil chamber is introduced machine oil cooler through the first external oil pipe; Get into oil filter through the second external oil pipe then; Introduce the preceding dark oil duct of main axle bush then through the oil strainer double-screw bolt of oil filter; Divide two place's oil circuits after arriving main axle bush, the one tunnel through the lubricated connecting rod bearing shell of crankshaft oil gallery, gets back in the machine oil pond through spill port then; Another road is introduced the cylinder cap oil duct and is got into pitman arm shaft through the 3rd external oil pipe, and rocking arm is lubricated, and is back in the machine oil pond through pushing rod sleeve then.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020639.0A CN104727884B (en) | 2012-06-29 | 2012-06-29 | Suitable for solving the lubricant passage way and its method of work of the diesel engine of engine scuffing |
| CN201510020727.0A CN104675474B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way for the diesel engine that machine oil is quickly pumped out and Rapid Implementation lubricates can be made |
| CN201510021365.7A CN104727885B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of the diesel engine with check valve |
| CN201210222924.7A CN102691543B (en) | 2012-06-29 | 2012-06-29 | Lubricant oil passage of diesel engine and working method of lubricant oil passage |
| CN201510021560.XA CN104696041B (en) | 2012-06-29 | 2012-06-29 | Diesel engine oil gallery capable of solving engine bearing score |
| CN201510021792.5A CN104727888B (en) | 2012-06-29 | 2012-06-29 | Machine oil can be extracted into rapidly the lubricant passage way of the diesel engine of oil leab |
| 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 |
| CN201510021772.8A CN104675475B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of a kind of diesel engine of energy Rapid Implementation lubrication |
| CN201510022037.9A CN104727890B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of diesel engine |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (10)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020639.0A Division CN104727884B (en) | 2012-06-29 | 2012-06-29 | Suitable for solving the lubricant passage way and its method of work of the diesel engine of engine scuffing |
| CN201510022037.9A Division CN104727890B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of diesel engine |
| CN201510021772.8A Division CN104675475B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of a kind of diesel engine of energy Rapid Implementation lubrication |
| CN201510021560.XA Division CN104696041B (en) | 2012-06-29 | 2012-06-29 | Diesel engine oil gallery capable of solving engine bearing score |
| CN201510021755.4A Division CN104727887A (en) | 2012-06-29 | 2012-06-29 | Lubricating oil path of diesel engine and working method thereof |
| CN201510021365.7A Division CN104727885B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way and its method of work of the diesel engine with check valve |
| CN201510021384.XA Division CN104727886A (en) | 2012-06-29 | 2012-06-29 | Lubricating oil way for preventing engine oil backflow |
| CN201510021941.8A Division CN104727889B (en) | 2012-06-29 | 2012-06-29 | A kind of lubricant passage way of diesel engine quickly pumped out suitable for machine oil |
| CN201510020727.0A Division CN104675474B (en) | 2012-06-29 | 2012-06-29 | The lubricant passage way for the diesel engine that machine oil is quickly pumped out and Rapid Implementation lubricates can be made |
| CN201510021792.5A Division CN104727888B (en) | 2012-06-29 | 2012-06-29 | Machine oil can be extracted into rapidly the lubricant passage way of the diesel engine of oil leab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102691543A true CN102691543A (en) | 2012-09-26 |
| CN102691543B CN102691543B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222924.7A Active CN102691543B (en) | 2012-06-29 | 2012-06-29 | Lubricant oil passage of diesel engine and working method of lubricant oil passage |
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| CN (1) | CN102691543B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780992A (en) * | 2017-11-02 | 2018-03-09 | 广西玉柴机器股份有限公司 | The lubricating oil pump oil-returning structure of engine |
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| CN2854095Y (en) * | 2005-10-27 | 2007-01-03 | 扬动股份有限公司 | Lubricating protection device for supercharger |
| CN101392670A (en) * | 2008-10-24 | 2009-03-25 | 江苏科技大学 | Non-stopping device for lifeboat diesel engine while inversion |
| CN202732020U (en) * | 2012-06-29 | 2013-02-13 | 常州科普动力机械有限公司 | Lubricating oil passage of diesel engine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854095Y (en) * | 2005-10-27 | 2007-01-03 | 扬动股份有限公司 | Lubricating protection device for supercharger |
| CN101392670A (en) * | 2008-10-24 | 2009-03-25 | 江苏科技大学 | Non-stopping device for lifeboat diesel engine while inversion |
| CN202732020U (en) * | 2012-06-29 | 2013-02-13 | 常州科普动力机械有限公司 | Lubricating oil passage of diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107780992A (en) * | 2017-11-02 | 2018-03-09 | 广西玉柴机器股份有限公司 | The lubricating oil pump oil-returning structure of engine |
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| CN102691543B (en) | 2015-02-04 |
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Address after: 213000 No. 6 Xiang Xiang Road, Wujin Economic Development Zone, Jiangsu, Changzhou, China Applicant after: Changzhou Koop Power Machinery Co.,Ltd. Address before: 213000, building 3, California science and technology port, No. 218 Fumin Road, Qishuyan District, Jiangsu, Changzhou Applicant before: Changzhou Koop Power Machinery Co.,Ltd. |
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