CN105888773A - Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method - Google Patents
Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method Download PDFInfo
- Publication number
- CN105888773A CN105888773A CN201410603244.9A CN201410603244A CN105888773A CN 105888773 A CN105888773 A CN 105888773A CN 201410603244 A CN201410603244 A CN 201410603244A CN 105888773 A CN105888773 A CN 105888773A
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- engine oil
- crankcase
- oil
- piston
- air
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Abstract
The invention relates to a crankcase pressure reducing and piston crankshaft lubricating and cooling method and device. The device comprises a crankcase internal air pressure reducing device and an engine oil cooling device. Firstly, according to the crankcase internal air pressure reducing device, air in an engine crankcase passes through an electronic control air return vacuum pump 3 to be pumped into an engine oil gas filter 4, after engine oil is filtered out, the air enters an engine air inlet pipe 1, and the aims are that the air in the crankcase 2 is pumped out and the piston movement resistance is reduced. Secondly, piston crankshaft lubricating and cooling processes include that high-temperature internal engine oil of the crankcase 2 is pumped into a filter 6 through a large-flow engine oil pump 5, and the engine oil is divided into two ways after being filtered; one way of the engine oil passes through an engine oil cooling heat exchanger 7, and then cold engine oil is injected to a piston through a piston cooling engine oil nozzle 11 to cool the piston; and the other way of the engine oil is pressurized through a high-pressure engine oil pump 8 to be pumped into an engine oil fine filter 9, after micro particles are filtered out, the engine oil enters a bearing of a crankshaft 10 to lubricate the bearing, and therefore the running reliability of the bearing of the crankshaft is improved.
Description
Technical field
The present invention relates to a kind of crankcase decompression and piston crankshaft lubrication chiller and method.
Background technology
Engine piston comes and goes at a high speed and causes air also flow at high speed in crankcase, and piston is produced certain resistance.
Air movement in crankcase and air inlet pipe air exchange can bring the machine oil loss in sump, the problem that also can bring burn oil.
Crankshaft lubrication needs machine oil to have higher pressure, and piston cooling needs lubricating oil to need pressure the highest but requires that flow is big.
Summary of the invention
Therefore the present invention solves the method for problem above is crankcase decompression and piston crankshaft lubrication chiller and method.Reduce engine crankshaft
The energy resource consumption of air movement in case, the method bringing engine piston kinetic energy loss；Improve crankshaft lubrication engine oil pressure, strengthen cold oil to piston
Cooling flow.
The present invention is crankcase decompression and piston crankshaft lubrication chiller and method.Apparatus of the present invention include: engine air inlet tube 1., crankcase
2., Electronic Control return-air vacuum pump 3., machine oil pneumatic filter 4., big flow machine oil pump 5., oil filter 6., machine oil cooling heat exchanger 7.,
High pressure lubricating oil pump 8., filter thin oil 9., bent axle 10., piston cooling machine oil nozzleRadiator
Flow process of the present invention is: be divided into air decompressor and machine oil cooler.1, air decompressor is: engine crankcase 2. interior air
3. extract out through Electronic Control return-air vacuum pump, deliver to machine oil pneumatic filter 4. middle filtering machine oil rear engine air inlet pipe 1.；2, piston bent axle profit
Sliding cooling process is: 6. 5. crankcase 2. high temperature inner engine oil pumped into cleaner by big flow machine oil pump, and machine oil is divided into two-way after filtering: a road is passed through
Machine oil cooling heat exchanger 7. (external radiatorDispel the heat), it is directly entered piston cooling machine oil nozzle after coolingPiston is sprayed machine oil,
With cold oil, piston is cooled down；8. machine oil after another passes by filter pressurizeed by high pressure lubricating oil pump through filter thin oil 9. (filtering minute metallic
Grain) afterwards high-pressure oil enter bent axle 10. bearing be lubricated.
Design philosophy of the present invention is that electromotor is when high speed piston back and forth movement so that crankcase 2. in air also at high-speed motion, produce sky
Flow of air resistance, in using crankcase, air decompression method solves.Electronic Control return-air vacuum pump is used 3. to extract the air (bent axle that crankcase is 2. interior out
Case obturator to be designed to, crankcase 2. inner air is free flow), reduce piston and come and go the air drag in high-speed motion.Crankcase is 2.
Use big flow cold oil to carry out cooling with the cooling problem of piston to solve.Crankcase and piston cooling method be: use big flow machine oil pump 5.
The high temperature oil of oil sump is extracted out and is delivered to oil filter 6..The machine oil of filtering is divided into two-way, and a road hot engine oil is 7. (outer through machine oil cooling heat exchanger
Connect radiatorDispel the heat), the cold oil after cooling is directly from piston cooling machine oil nozzleTo piston spray machine oil, allow cold oil absorb piston and
Piston/cylinder heat, it is provided that the oil level of injection is bigger, thus reach quickly to reduce piston and piston/cylinder temperature purpose；After another passes by filter
9. machine oil enter filter thin oil after 8. being pressurizeed by high pressure lubricating oil pump, and after filtering minute metallic granule, 10. bearing is moistened by high-pressure oil entrance bent axle
Sliding.High pressure lubricating oil pump can more effectively lubricate crankshaft bearing after 8. improving pressure, through filter thin oil 9. except molecule, increases Crankshaft
Hold operational reliability.
The key device of the present invention be Electronic Control return-air vacuum pump 3..Electronic Control return-air vacuum pump 3. operation principle is: during tail-off
Electronic Control return-air vacuum pump return-air function 3. is opened, and crankcase 2. inside and outside no pressure is poor, and during electromotor work, return-air function is closed, Electronic Control
3. return-air vacuum pump is opened and 2. crankcase is carried out vacuum, and Electronic Control can control vacuum pump and be automatically switched off after reaching vacuum and not up to vacuum
Degree automatically turns on when requiring.Crankcase 2. interior air is drawn out of, and reduces the air drag impact on piston movement, thus improves engine power.
The piston crankshaft lubrication cooling process of the present invention.6. big flow machine oil pump sends into oil filter after 5. the high temperature oil of oil sump being pressurizeed.
In order to ensure the flow of machine oil, particle filtering slightly larger in oil filter is removed, and 7. cools down through machine oil cooling heat exchanger that (flow of machine oil is wanted
Determine according to the flow needing cooling to need under engine crankcase 2. appropriate working temperature).Cooled machine oil is divided into two-way, and a road is directly entered
Enter piston cooling machine oil nozzleTo piston injection machine oil carry out cooling down, another road after 8. high pressure lubricating oil pump pressurizes filter thin oil 9., filtering
After molecule, entrance bent axle is 10. to bearing lubrication, and after 8. high pressure lubricating oil pump improves pressure, machine oil more can enter small spaces, thus more effectively lubricates
Bent axle, has 9. filtered molecule through filter thin oil, increases bent axle operational reliability.
Accompanying drawing explanation
Accompanying drawing is crankcase decompression and piston crankshaft lubrication chiller and the schematic diagram of method.
Detailed description of the invention
Parts labelling mark in explanation is such as labelling mark in accompanying drawing.
Crankcase decompressor and method: during tail-off, Electronic Control return-air vacuum pump return-air function 3. is opened, crankcase 2. inside and outside nothing
Pressure differential, after electromotor work, return-air function is closed, and 3. Electronic Control return-air vacuum pump is opened and 2. crankcase is carried out vacuum, and Electronic Control can be controlled
Vacuum pump processed be automatically switched off after reaching vacuum and not up to vacuum level requirements time automatically turn on.Crankcase 2. interior air is drawn out of, and reduces air resistance
The power impact on piston movement, thus improve engine power.3. engine crankcase 2. interior air delivers to machine oil through Electronic Control return-air vacuum pump
1. pneumatic filter 4. middle filtering machine oil rear engine air inlet pipe enters electromotor, gas leakage poisonous and unpleasant in preventing crankcase 2..
Piston crankshaft lubrication cooling process is: to oil filter 6. 5. big flow machine oil pump extract force feed out the high temperature oil of oil sump.In order to
Ensureing the flow of machine oil, particle filtering slightly larger in oil filter is removed, and 7. cools down through machine oil cooling heat exchanger that (flow of machine oil will basis
Amount of cooling water is needed to determine under engine crankcase 2. appropriate working temperature).Machine oil through filtering is divided into two-way, and a road was entered machine oil cooling heat and handed over
Parallel operation 7. (external radiatorDispel the heat), after cooling, machine oil is directly from piston cooling machine oil nozzlePiston is sprayed machine oil, allows machine oil absorb and live
Plug and piston/cylinder heat, it is provided that the oil level of injection is bigger, more reaches quickly to reduce piston temperature purpose；Another passes by the machine oil after filter through height
Press oil pump 8. pressurize after filter thin oil 9., after filtering minute metallic granule high-pressure oil enter bent axle 10. bearing be lubricated.High pressure lubricating oil pump is 8.
After improving pressure, machine oil can more effectively lubricate crankshaft bearing after more entering small spaces, 9. eliminates molecule through filter thin oil, increases
Add crankshaft bearing operational reliability.
List of numerals
1. engine air inlet tube
2. crankcase
3. Electronic Control return-air vacuum pump
4. machine oil pneumatic filter
The biggest flow machine oil pump
6. oil filter
7. machine oil cooling heat exchanger
8. high pressure lubricating oil pump
9. filter thin oil
10. bent axle
Piston cooling machine oil nozzle
Radiator
Claims (4)
1. in crankcase, air decompression method and device is characterized in that: 3. Electronic Control return-air vacuum pump uses and extract the air (bent axle that crankcase is 2. interior out
Case obturator to be designed to, crankcase 2. inner air is free flow), it is automatically switched off and does not reaches vacuum after reaching vacuum level requirements certainly
Dynamic startup, thus reduce the air drag in high speed piston back and forth movement, can automatically recover again normal pressure under tail-off.
2. piston crankshaft lubrication cooling means and device is characterized in that: big flow machine oil pump 5. for provide crankcase 2. with piston needed for the big stream of certain pressure
Amount cold oil.8. machine oil provide bent axle 10. bearing high-tension lubrication through high pressure lubricating oil pump.
3. high-pressure oil crankshaft lubrication method and apparatus is characterized in that: machine oil is after 8. high pressure lubricating oil pump pressurizes, and high-pressure oil can allow machine oil enter bent axle
10., in bearing fine gap, oil lubricating effect is improved.
4. filter thin oil 9. filter is characterized in that: filters the molecule entered in bent axle 10. bearing high-pressure oil, filters fine particle machine oil
Crankshaft bearing abrasion can be reduced, increase bent axle operational reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603244.9A CN105888773A (en) | 2014-10-31 | 2014-10-31 | Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603244.9A CN105888773A (en) | 2014-10-31 | 2014-10-31 | Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888773A true CN105888773A (en) | 2016-08-24 |
Family
ID=56697848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603244.9A Pending CN105888773A (en) | 2014-10-31 | 2014-10-31 | Crankcase pressure reducing and piston crankshaft lubricating and cooling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194164A (en) * | 2017-12-22 | 2018-06-22 | 江苏理工学院 | A kind of crankcase ventilation and pumping device |
| CN113356991A (en) * | 2020-03-04 | 2021-09-07 | 一汽解放汽车有限公司 | Piston cooling system with pressure detection function and filtering function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202582899U (en) * | 2012-03-28 | 2012-12-05 | 南车戚墅堰机车有限公司 | Crankcase ventilation system of diesel engine experimental station |
| CN203035538U (en) * | 2012-12-29 | 2013-07-03 | 凯盛重工有限公司 | Automatic cooling lubricating system of five-plunger emulsion pump |
| CN203241834U (en) * | 2013-04-26 | 2013-10-16 | 大唐苏州热电有限责任公司 | Anti-oil leak device of crankcase |
| US20140014080A1 (en) * | 2012-07-13 | 2014-01-16 | Ford Global Technologies, Llc | Aspirator for crankcase ventilation and vacuum generation |
| CN103711897A (en) * | 2012-10-08 | 2014-04-09 | 现代自动车株式会社 | Hydraulic pressure supply system of automatic transmission |
| CN203847202U (en) * | 2014-03-17 | 2014-09-24 | 东风朝阳朝柴动力有限公司 | Apparatus capable of keeping pressure inside engine crankcase constant |
-
2014
- 2014-10-31 CN CN201410603244.9A patent/CN105888773A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202582899U (en) * | 2012-03-28 | 2012-12-05 | 南车戚墅堰机车有限公司 | Crankcase ventilation system of diesel engine experimental station |
| US20140014080A1 (en) * | 2012-07-13 | 2014-01-16 | Ford Global Technologies, Llc | Aspirator for crankcase ventilation and vacuum generation |
| CN103711897A (en) * | 2012-10-08 | 2014-04-09 | 现代自动车株式会社 | Hydraulic pressure supply system of automatic transmission |
| CN203035538U (en) * | 2012-12-29 | 2013-07-03 | 凯盛重工有限公司 | Automatic cooling lubricating system of five-plunger emulsion pump |
| CN203241834U (en) * | 2013-04-26 | 2013-10-16 | 大唐苏州热电有限责任公司 | Anti-oil leak device of crankcase |
| CN203847202U (en) * | 2014-03-17 | 2014-09-24 | 东风朝阳朝柴动力有限公司 | Apparatus capable of keeping pressure inside engine crankcase constant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194164A (en) * | 2017-12-22 | 2018-06-22 | 江苏理工学院 | A kind of crankcase ventilation and pumping device |
| CN113356991A (en) * | 2020-03-04 | 2021-09-07 | 一汽解放汽车有限公司 | Piston cooling system with pressure detection function and filtering function |
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Application publication date: 20160824 |