CN103573326A - Prelubrication system of engine - Google Patents
Prelubrication system of engine Download PDFInfo
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- CN103573326A CN103573326A CN201310594520.5A CN201310594520A CN103573326A CN 103573326 A CN103573326 A CN 103573326A CN 201310594520 A CN201310594520 A CN 201310594520A CN 103573326 A CN103573326 A CN 103573326A
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a prelubrication system of an engine. The system comprises an engine main oil pump, an auxiliary oil pump and a control valve, wherein a first bypass check valve is arranged in the engine main oil pump; a main oil inlet oil way of the control valve is communicated with the engine main oil pump through a pipe. When the engine main oil pump is not turned on, the auxiliary oil pump is turned on, the oil in the engine sump can be pumped into the main oil inlet oil way of the control valve through the first bypass check valve, and then to the engine main lubricating oil way sequentially through an auxiliary oil inlet oil way, the auxiliary oil pump, an auxiliary oil outlet oil way and the main oil outlet oil way. By virtue of the prelubrication system of the engine, when the engine is not started, the lubricating oil is pumped to the designated part in advance, so that the service life of the engine can be prolonged.
Description
Technical field
The present invention relates to engine lubrication technical field; Specifically, the present invention relates to a kind of motor pre-lubricating system.
Background technique
Why the taxi engine overhaul phase can reach 500,000 kilometers, and 250,000 kilometers of private car overhaul phases less than, be that what reason causes this situation, be that the lubricating oil quality that taxi uses is better than private car, also non-.Immediate cause has following several:
First, Vehicle-Miles of Travel number and engine start number of times have relation, i.e. the automobile 100 kilometers of engine start number of times that often travel.Generally taxi is 0.5-1 time, and private car is 2-3 time.
Secondly, have relation with engine stoping operation time length, generally, engine stoping operation 2-5 minutes, restarts motor little to parts wear, and now lubricated parts formation lubricating oil oil film not yet destroys.Wearing and tearing that the engine stoping operation time is longer when motor is started are again larger, because the lubricating oil oil film of engine running parts is destroyed, residual lubricant oil, along with the time is put off longlyer, runs off more, and finally disappearance totally.When motor starts again, its moving element, in dry condition, is now serious to parts wear.This situation will become more serious in the winter time.
Its three, be lubricating oil quality, full synthetic oil is better than mineral oil, what the low specific viscosity of viscosity was high will get well when starting a cold engine.The Zao slogan that arrives lubricant housings 5 seconds than other producers is got by certain world famous lubricant oil producer.The invention of same famous lubricant oil producer of another family does not start and first protects lubricant oil kind etc.The world each relevant technologies personage works hard for it, and target only has one, allows exactly motor when starting, and allows lubricant oil arrive as early as possible appointed part.
In sum, engine start number of times and start interval time, the grade no less important with using lubricant oil, all can exert an influence to engine life.
Summary of the invention
The object of the present invention is to provide a kind of motor pre-lubricating system, when motor starts, lubricant oil is not delivered to appointed part in advance, reach and extend engine life object.
For achieving the above object, motor pre-lubricating system of the present invention, comprise: motor main oil pump, auxiliary oil pump and control valve, in described motor main oil pump, be provided with the first bypass one-way valve, in described control valve, be provided with main oil-feed oil circuit, with the fuel-displaced oil circuit of the master who starts owner's oil leab to be connected and the auxiliary oil-feed oil circuit being communicated with respectively with the oil inlet and outlet of described auxiliary oil pump and auxiliary fuel-displaced oil circuit, described auxiliary oil-feed oil circuit can be communicated with main oil-feed oil circuit, described auxiliary fuel-displaced oil circuit can be communicated with main fuel-displaced oil circuit, main oil-feed oil circuit and the described motor main oil pump of described control valve pass through pipeline connection, when motor main oil pump does not start, start auxiliary oil pump, the oil of engine sump tank can enter the main oil-feed oil circuit of described control valve after the first bypass one-way valve, again successively through auxiliary oil-feed oil circuit, auxiliary oil pump, auxiliary fuel-displaced oil circuit and main fuel-displaced oil circuit enter and start owner's oil leab.
Described control valve comprises valve body, the spool that can slide in valve body, and the lower limit bolt being connected with valve body screw thread respectively and upper limit bolt, described lower limit bolt and upper limit bolt form respectively lower oil cavitie and upper oil cavitie in described valve body with spool, described lower oil cavitie is communicated with main oil-feed oil circuit, on described spool, offer auxiliary oil-feed tank and assist out oil groove, when motor main oil pump does not start, described auxiliary oil-feed tank and assist out oil groove corresponding with described auxiliary oil-feed oil circuit and auxiliary fuel-displaced oil circuit respectively, and make respectively described auxiliary oil-feed oil circuit be communicated with main oil-feed oil circuit, and described auxiliary fuel-displaced oil circuit is communicated with main fuel-displaced oil circuit.
In described control valve, be provided with the oil return circuit being connected with engine crankcase, described oil return circuit is communicated with described upper oil cavitie, in described spool, offers spill port, and described oil return circuit can be communicated with described auxiliary fuel-displaced oil circuit by described upper oil cavitie and spill port.
In described upper oil cavitie, be provided with Returnning spring.
Described valve body is provided with a signaling switch outward, and described spool is provided with a push rod, and the end of described push rod is through described upper limit bolt, and when described push rod moves, described signaling switch can be opened in its end.
Between described main oil-feed oil circuit and main fuel-displaced oil circuit, be provided with the second bypass one-way valve.
Motor pre-lubricating system of the present invention, when motor starts, lubricant oil is not delivered to appointed part in advance, after reaching certain pressure, in running gear, form oil film, now restart motor and will reach us and envision object, alleviate friction, reduce wear, reduce discharge, reduce costs, extend engine life.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will be more obvious.Should understand, these accompanying drawings are only that schematically not drawn on scale is also not intended to limit scope of the present invention.In figure:
Fig. 1 is the structural representation of motor pre-lubricating system of the present invention;
Fig. 2 is the schematic diagram of motor pre-lubricating system of the present invention after engine start;
Fig. 3 is the enlarged diagram of spool and push rod in Fig. 1;
Fig. 4 is the worm's eye view of Fig. 3.
Embodiment
Explain with reference to the accompanying drawings the specific embodiment of the present invention.These explanations are only descriptive, exemplary.
Referring to Fig. 1～4, motor pre-lubricating system of the present invention comprises: motor main oil pump 10, auxiliary oil pump 20 and control valve 40, in described motor main oil pump 10, be provided with the first bypass one-way valve 11, in described control valve 40, be provided with main oil-feed oil circuit 301, with the fuel-displaced oil circuit 302 of the master who starts owner's oil leab to be connected and the auxiliary oil-feed oil circuit 201 being communicated with respectively with the oil inlet and outlet of described auxiliary oil pump 20 and auxiliary fuel-displaced oil circuit 202, described auxiliary oil-feed oil circuit 201 can be communicated with main oil-feed oil circuit 301, described auxiliary fuel-displaced oil circuit 202 can be communicated with main fuel-displaced oil circuit 302, main oil-feed oil circuit 301 and the described motor main oil pump 10 of described control valve 40 pass through pipeline connection, when motor main oil pump 10 does not start, start auxiliary oil pump 20, the oil of engine sump tank can enter the main oil-feed oil circuit 301 of described control valve 40 after the first bypass one-way valve 11, again successively through auxiliary oil-feed oil circuit 201, auxiliary oil pump 20, auxiliary fuel-displaced oil circuit 202 and main fuel-displaced oil circuit 302 enter and start owner's oil leab, oil flow direction as shown in solid arrow in Fig. 1.
Described control valve 40 comprises valve body 41, can be at the spool 42 of valve body 41 interior slips, and the lower limit bolt 43 being threaded with valve body 41 respectively and upper limit bolt 44, described lower limit bolt 43 and upper limit bolt 44 respectively with spool 42 at the interior formation lower oil cavitie 401 of described valve body 41 and upper oil cavitie 402, described lower oil cavitie 401 is communicated with main oil-feed oil circuit 301, on described spool 42, offer auxiliary oil-feed tank 421 and assist out oil groove 422, when motor main oil pump 10 does not start, described auxiliary oil-feed tank 421 and assist out oil groove 422 corresponding with described auxiliary oil-feed oil circuit 201 and auxiliary fuel-displaced oil circuit 202 respectively, and make respectively described auxiliary oil-feed oil circuit 201 be communicated with main oil-feed oil circuit 301, and described auxiliary fuel-displaced oil circuit 202 is communicated with main fuel-displaced oil circuit 302.
In described upper oil cavitie 402, be provided with Returnning spring 47, when motor main oil pump 10 does not start or stops after startup, spool 42 rests on initial position under the effect of Returnning spring 47, spacing by lower limit bolt 43.
When motor main oil pump 10 starts, stop auxiliary oil pump 20, the first bypass one-way valve 11 is closed automatically, lubricant oil enters lower oil cavitie 401 through main oil pump 10 by main oil-feed oil circuit 301 from engine sump tank, at the interior rapid mineralization pressure of lower oil cavitie 401, the active force that makes spool 42 overcome Returnning spring 47 moves up, and has upper limit bolt 44 spacing, as shown in Figure 2.At this moment main fuel-displaced oil circuit 302 is communicated with lower oil cavitie 401, and the oil that enters into lower oil cavitie 401 enters and starts owner's oil leab from main fuel-displaced oil circuit 302, starts normally to lubricate the direction that the flow direction of lubricant oil is as indicated in solid arrow in Fig. 2.During normal lubricating, close auxiliary oil pump 20.
At this moment, the auxiliary oil-feed oil circuit 201 of auxiliary oil pump 20 and auxiliary fuel-displaced oil circuit 202 are cut off because spool 42 moves.For preventing the raw leakage of oil of fry dried food ingredients in auxiliary oil pump 20, in described control valve 40, be provided with the oil return circuit 303 being connected with engine crankcase, described oil return circuit 303 is communicated with described upper oil cavitie 402, in described spool 42, offer spill port 423, described oil return circuit 303 can be communicated with described auxiliary fuel-displaced oil circuit 202 by described upper oil cavitie 402 and spill port 423, and auxiliary oil-feed oil circuit 201 and auxiliary fuel-displaced oil circuit 202 move described oil return circuit 303 of cut while and described path unlatching of assisting between fuel-displaced oil circuit 202 because of spool 42.Owing to being negative pressure state in engine crankcase, the excess oil in auxiliary oil pump 20 can enter upper oil cavitie 402 through the spill port 423 in spool 42, then from oil return circuit 303, enters engine crankcase, the flow direction as shown in dotted arrow in Fig. 2.After motor main oil pump 10 quits work, spool 42 resets under the effect of Returnning spring 47, the oil remaining in upper oil cavitie 402 still can flow back into engine crankcase through oil return circuit 303, flow direction as shown in dotted arrow in Fig. 1, so under any state, can there is not oil leakage phenomenon in native system yet.
Described valve body 40 is outer is provided with a signaling switch 46, and described spool 42 is provided with a push rod 45, and the end of described push rod 45 is through described upper limit bolt 44, and when described push rod 45 moves, described signaling switch 46 can be opened in its end.By signaling switch 46, can be to the working signal of this system of external communication.Described push rod 45 can be structure as a whole with described spool 42, but processes for convenience spill port 423, can make independent parts, is then fixedly connected with spool 42.
The safe operation of motor is quite important, just in case when spool 42 occurs by card, cannot rise to assigned position, will be unable to supply the phenomenon of lubricant oil, therefore, between described main oil-feed oil circuit 301 and main fuel-displaced oil circuit 302, be provided with the second bypass one-way valve 48.When spool 42 occurs by card, the oil pressure in pipeline can raise rapidly, causes the second bypass one-way valve 48 to be opened, and lubricant oil enters main fuel-displaced oil circuit 302 by the second bypass one-way valve 48 and flows to main oil leab, and motor is normally lubricated.
Claims (6)
1. a motor pre-lubricating system, is characterized in that, comprising: motor main oil pump (10), auxiliary oil pump (20) and control valve (40),
In described motor main oil pump (10), be provided with the first bypass one-way valve (11),
In described control valve (40), be provided with main oil-feed oil circuit (301), with the fuel-displaced oil circuit of the master who starts owner's oil leab to be connected (302) and the auxiliary oil-feed oil circuit (201) being communicated with respectively with the oil inlet and outlet of described auxiliary oil pump (20) and auxiliary fuel-displaced oil circuit (202), described auxiliary oil-feed oil circuit (201) can be communicated with main oil-feed oil circuit (301), described auxiliary fuel-displaced oil circuit (202) can be communicated with main fuel-displaced oil circuit (302)
The main oil-feed oil circuit (301) of described control valve (40) passes through pipeline connection with described motor main oil pump (10),
When motor main oil pump (10) does not start, start auxiliary oil pump (20), the oil of engine sump tank can enter the main oil-feed oil circuit (301) of described control valve (40) after the first bypass one-way valve (11), then through auxiliary oil-feed oil circuit (201), auxiliary oil pump (20), auxiliary fuel-displaced oil circuit (202) and main fuel-displaced oil circuit (302), enters and start owner's oil leab successively.
2. motor pre-lubricating system as claimed in claim 1, it is characterized in that, described control valve (40) comprises valve body (41), the spool (42) that can slide in valve body (41) and the lower limit bolt (43) being threaded with valve body (41) respectively and upper limit bolt (44)
Described lower limit bolt (43) and upper limit bolt (44) form respectively lower oil cavitie (401) and upper oil cavitie (402) in described valve body (41) with spool (42), described lower oil cavitie (401) is communicated with main oil-feed oil circuit (301),
On described spool (42), offer auxiliary oil-feed tank (421) and assist out oil groove (422), when motor main oil pump (10) does not start, described auxiliary oil-feed tank (421) and assist out oil groove (422) corresponding with described auxiliary oil-feed oil circuit (201) and auxiliary fuel-displaced oil circuit (202) respectively, and make respectively described auxiliary oil-feed oil circuit (201) be communicated with main oil-feed oil circuit (301), and described auxiliary fuel-displaced oil circuit (202) is communicated with main fuel-displaced oil circuit (302).
3. motor pre-lubricating system as claimed in claim 2, it is characterized in that, in described control valve (40), be provided with the oil return circuit (303) being connected with engine crankcase, described oil return circuit (303) is communicated with described upper oil cavitie (402), in described spool (42), offer spill port (423), described oil return circuit (303) can be communicated with described auxiliary fuel-displaced oil circuit (202) by described upper oil cavitie (402) and spill port (423).
4. motor pre-lubricating system as claimed in claim 2, is characterized in that, is provided with Returnning spring (47) in described upper oil cavitie (402).
5. motor pre-lubricating system as claimed in claim 2, it is characterized in that, the outer signaling switch (46) that is provided with of described valve body (40), described spool (42) is provided with a push rod (45), the end of described push rod (45) is through described upper limit bolt (44), and when described push rod (45) is mobile, described signaling switch (46) can be opened in its end.
6. motor pre-lubricating system as claimed in claim 1 or 2, is characterized in that, between described main oil-feed oil circuit (301) and main fuel-displaced oil circuit (302), is provided with the second bypass one-way valve (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594520.5A CN103573326B (en) | 2013-11-21 | 2013-11-21 | Prelubrication system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594520.5A CN103573326B (en) | 2013-11-21 | 2013-11-21 | Prelubrication system of engine |
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| Publication Number | Publication Date |
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| CN103573326A true CN103573326A (en) | 2014-02-12 |
| CN103573326B CN103573326B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310594520.5A Expired - Fee Related CN103573326B (en) | 2013-11-21 | 2013-11-21 | Prelubrication system of engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454074A (en) * | 2014-12-04 | 2015-03-25 | 星月集团有限公司 | Novel universal gasoline engine self-lubricating system |
| CN108661746A (en) * | 2017-03-28 | 2018-10-16 | 株式会社斯巴鲁 | Engine oil supplying device |
| CN112833320A (en) * | 2019-11-22 | 2021-05-25 | 沪东重机有限公司 | Pre-lubricating device and method for bearing of oil supply unit of low-speed diesel engine for ship |
| CN112922692A (en) * | 2021-02-03 | 2021-06-08 | 南昌济铃新能源科技有限责任公司 | Lubricating system of range extender engine and control method thereof |
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| JPS55101729A (en) * | 1979-01-25 | 1980-08-04 | Nissan Motor Co Ltd | Lubricating system for internal combustion engine equipped with exhaust turbocharger |
| CN1580507A (en) * | 2004-05-10 | 2005-02-16 | 王立华 | Advanced lubricating system of engine |
| CN2742145Y (en) * | 2004-11-24 | 2005-11-23 | 刘军 | Device for eliminating engine dry friction |
| CN202810990U (en) * | 2012-06-15 | 2013-03-20 | 浙江吉利汽车研究院有限公司杭州分公司 | Pre-lubricating device for engine |
| JP2013204769A (en) * | 2012-03-29 | 2013-10-07 | Honda Motor Co Ltd | Oil pressure supply structure |
| CN203584496U (en) * | 2013-11-21 | 2014-05-07 | 夏成川 | Pre-lubrication system of engine |
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2013
- 2013-11-21 CN CN201310594520.5A patent/CN103573326B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55101729A (en) * | 1979-01-25 | 1980-08-04 | Nissan Motor Co Ltd | Lubricating system for internal combustion engine equipped with exhaust turbocharger |
| CN1580507A (en) * | 2004-05-10 | 2005-02-16 | 王立华 | Advanced lubricating system of engine |
| CN2742145Y (en) * | 2004-11-24 | 2005-11-23 | 刘军 | Device for eliminating engine dry friction |
| JP2013204769A (en) * | 2012-03-29 | 2013-10-07 | Honda Motor Co Ltd | Oil pressure supply structure |
| CN202810990U (en) * | 2012-06-15 | 2013-03-20 | 浙江吉利汽车研究院有限公司杭州分公司 | Pre-lubricating device for engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454074A (en) * | 2014-12-04 | 2015-03-25 | 星月集团有限公司 | Novel universal gasoline engine self-lubricating system |
| CN108661746A (en) * | 2017-03-28 | 2018-10-16 | 株式会社斯巴鲁 | Engine oil supplying device |
| CN108661746B (en) * | 2017-03-28 | 2022-01-04 | 株式会社斯巴鲁 | Engine oil supply device |
| CN112833320A (en) * | 2019-11-22 | 2021-05-25 | 沪东重机有限公司 | Pre-lubricating device and method for bearing of oil supply unit of low-speed diesel engine for ship |
| CN112922692A (en) * | 2021-02-03 | 2021-06-08 | 南昌济铃新能源科技有限责任公司 | Lubricating system of range extender engine and control method thereof |
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| Publication number | Publication date |
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| CN103573326B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20181121 |