CN106321185B - Engine motor oil switches separator - Google Patents
Engine motor oil switches separator Download PDFInfo
- Publication number
- CN106321185B CN106321185B CN201610849354.2A CN201610849354A CN106321185B CN 106321185 B CN106321185 B CN 106321185B CN 201610849354 A CN201610849354 A CN 201610849354A CN 106321185 B CN106321185 B CN 106321185B
- Authority
- CN
- China
- Prior art keywords
- oil
- pipe
- contents gauge
- fuel contents
- machine
- 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.)
- Active
Links
Classifications
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0033—Oilsumps with special means for guiding the return of oil into the sump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to technical field of engines, especially a kind of engine motor oil switches separator.It includes cylinder head, cylinder block, oil sump, bent axle, camshaft, machine oil storage device, lubricating oil pump, oil suction hose, send oil pipe line and machine oil reflux oil pipe.Machine oil flows back oil pipe equipped with fuel contents gauge two, separating valve and oil distributing pipe, send oil pipe line to be equipped with fuel contents gauge one, is rotated in separating valve and be connected with spool, fuel contents gauge two, fuel contents gauge one and spool are connect with the control system of engine respectively.Setting fuel contents gauge two, separating valve and oil distributing pipe on machine oil reflux oil pipe, fuel contents gauge one is set on sending oil pipe line simultaneously, fuel contents gauge two, fuel contents gauge one and spool are connect with the control system of engine respectively, it forms oil return and detaches control mechanism, the flow direction of controllable machine oil, the separation of different oil groove inner engine oils is realized, so that effectively having extenuated original machine oil is mixed into the situation that the greasy property of machine oil caused by work machine oil now changes.
Description
Technical field
The present invention relates to technical field of engines, especially a kind of engine motor oil switches separator.
Background technology
Present engine is generally lubricated using machine oil, however in the oil sump in engine for storing machine oil,
Generally only store a type of machine oil.Available there are many machine oil model in the market, the machine oil of each model has one
A best operating ambient temperature range is more than this best operating ambient temperature range, then the greasy property of machine oil can go out
It now drops, engine can be damaged under serious conditions.The larger country of the latitude span as China, winter is from northernmost to most
The temperature difference of the south, temperature is big, if automobile from drive to northernmost southernmost or from southernmost driving to northernmost, in order to make
Engine is preferably lubricated, and is needed it is necessary to replace different machine oil halfway, to adapt to different temperatures environment.Invention at present
It is a kind of to store the switching device of two kinds of machine oil simultaneously, but there are problems that two kinds of oil are mixed in use.
Invention content
In order to overcome the shortcomings of that existing engine motor oil switching device has oil product mixing, the present invention provides
A kind of engine motor oil switching separator.
The technical solution adopted by the present invention to solve the technical problems is：A kind of engine motor oil switching separator, packet
It includes cylinder head, cylinder block, oil sump, bent axle, camshaft, machine oil storage device, lubricating oil pump, oil suction hose, send oil pipe line and machine
Oil reflux oil pipe, cylinder block are equipped with crankshaft position sensor, and oil sump is equipped with sliding rail, motor and cover board, and cover board is equipped with
Notch, machine oil storage device include oil groove one, oil groove two and link block, and machine oil storage device is connected by screw body and motor
It connects, slides on the sliding rail in oil sump, crankshaft position sensor and motor are connect with the control system of engine respectively.Machine oil
The oil pipe that flows back is equipped with fuel contents gauge two, separating valve and oil distributing pipe, send oil pipe line to be equipped with fuel contents gauge one, is rotatably connected in separating valve
There are spool, fuel contents gauge two, fuel contents gauge one and spool to be connect respectively with the control system of engine.
According to another embodiment of the invention, further comprise that fuel contents gauge one is located at the top of lubricating oil pump, fuel contents gauge two
Positioned at the top of oil distributing pipe, separating valve is mounted on oil distributing pipe.
According to another embodiment of the invention, further comprise that oil distributing pipe is cross four-way pipe, distinguish up and down
Equipped with oil inlet pipe, flowline three, flowline one and flowline two.
According to another embodiment of the invention, further comprise oil inlet pipe and machine oil reflux oil pipe unicom, flowline three
It extends in notch, flowline one extends to the limiting edge position of oil groove one, and flowline two extends to the limit side of oil groove two
Edge position.
According to another embodiment of the invention, further comprise that separating valve is located at the right-angled intersection portion of oil distributing pipe, thereon
The orientation of lower left and right four is respectively equipped with fuel feed hole, oil outlet three, oil outlet one and oil outlet two, fuel feed hole, oil outlet three, fuel-displaced
Hole one and oil outlet two dock unicom with oil inlet pipe, flowline three, flowline one and flowline two respectively.
According to another embodiment of the invention, further comprise being equipped with by oil duct one, oil duct two, three and of oil duct in spool
The oblique fork-shaped oil circuit for the intercommunication that oil duct four forms, oil duct four and about three oil ducts connect in line, and oil duct one and oil duct two are symmetrical
It is distributed in the left and right sides of oil duct four, the angle with oil duct four is all 45 ゜.
The invention has the advantages that setting fuel contents gauge two, separating valve and oil distributing pipe on machine oil reflux oil pipe, oil distributing pipe
Three branch pipes be respectively protruding into the limiting edge position of oil groove one, oil groove two limiting edge position and notch in, separating valve peace
On oil distributing pipe, rotation is connected with spool in separating valve, while fuel contents gauge one being arranged on sending oil pipe line, fuel contents gauge two, oil
Gauge one and spool are connect with the control system of engine respectively, are formed oil return and are detached control mechanism.When work, two He of fuel contents gauge
Fuel contents gauge one calculates separately instantaneous flow, and flow signal is included in ECU, when machine oil storage device switches oil groove, ECU controls
Valve core rotation processed changes the flow direction of machine oil by the combination of each oil duct, is returned to come from the machine oil in machine oil reflux oil pipe
Before flowing in the oil groove in operating position, then, by the comparison of fuel contents gauge one and fuel contents gauge two, calculates and cut in oil groove
Before alternatively, whether flow back into unrefined oil tank by the machine oil of fuel contents gauge one, when the calculating flow of fuel contents gauge two reaches setting value,
Then ECU controls valve core rotation and resets, and the new machine oil in machine oil reflux oil pipe is made to be back to the new oil groove for being now arranged in operating position
In, so that effectively having extenuated original machine oil is mixed into the situation that the greasy property of machine oil caused by work machine oil now changes.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the oil distributing pipe stereogram of the present invention；
Fig. 3 is the oil distributing pipe and machine oil storage device connection diagram of the present invention；
Fig. 4 is the separating valve normal work of the present invention and resets working state figure；
Fig. 5 is separating valve switching state figure in the embodiment of the present invention one；
Fig. 6 is separating valve switching state figure in the embodiment of the present invention two.
1. cylinder head in figure, 2. cylinder block, 3. oil sumps, 4. bent axles, 5. camshafts, 6. machine oil storage devices,
61. cover board, 62. notches, 64. oil grooves one, 65. oil grooves two, 66. link blocks, 67. sliding rails, 68. motors, 69. lead screws
Mechanism, 7. crankshaft position sensors, 9. lubricating oil pump, 10. oil suction hoses, 11. send oil pipe line, and 12. machine oil flow back oil pipe,
13. fuel contents gauge two, 14. separating valves, 141. oil outlets one, 142. oil outlets two, 143. oil outlets three, 144. oil inlets
Hole, 15. oil distributing pipes, 151. flowlines one, 152. flowlines two, 153. flowlines three, 154. oil inlet pipes, 16. oil masses
Meter one, 17. spools, 171. oil ducts one, 172. oil ducts two, 173. oil ducts three, 174. oil ducts four.
Specific implementation mode
If Fig. 1 is the structural schematic diagram of the present invention, Fig. 2 is the oil distributing pipe stereogram of the present invention, and Fig. 3 is point oil of the present invention
Pipe and machine oil storage device connection diagram, Fig. 4 is the separating valve normal work of the present invention and resets working state figure, and Fig. 5 is
Separating valve switching state figure in the embodiment of the present invention one, Fig. 6 are separating valve switching state figures in the embodiment of the present invention two, one
Kind engine motor oil switches separator, including cylinder head 1, cylinder block 2, oil sump 3, bent axle 4, camshaft 5, machine oil storage dress
It sets 6, lubricating oil pump 9, oil suction hose 10, oil pipe line 11 and machine oil reflux oil pipe 12, cylinder block 2 is sent to be equipped with crankshaft position sensor
7, oil sump 3 is equipped with sliding rail 67, motor 68 and cover board 61, and cover board 61 is equipped with notch 62, and machine oil storage device 6 includes oil groove
One 64, oil groove 2 65 and link block 66, machine oil storage device 6 are connect with motor 68 by screw body 69, are slided in oil sump 3
On interior sliding rail 67, crankshaft position sensor 7 and motor 68 are connect with the control system of engine respectively.Crankshaft position sensor
Whether 7 each trunnions for detecting bent axle stretch into notch 62, only when each trunnion is all located at 62 top of notch, can just make
Oil groove 1, oil groove 2 65 slide to realize the switching of oil groove positions.Machine oil flows back oil pipe 12 equipped with fuel contents gauge 2 13, point oil
Valve 14 and oil distributing pipe 15 send oil pipe line 11 to be equipped with fuel contents gauge 1, are rotated in separating valve 14 and be connected with spool 17, fuel contents gauge two
13, fuel contents gauge 1 and spool 17 are connect with the control system of engine respectively.Fuel contents gauge 1 is located at the top of lubricating oil pump 9,
Fuel contents gauge 2 13 is located at the top of oil distributing pipe 15, and separating valve 14 is mounted on oil distributing pipe 15.Oil distributing pipe 15 is cross four-way pipe,
It is respectively equipped with oil inlet pipe 154, flowline 3 153, flowline 1 and flowline 2 152 up and down.Oil inlet pipe 154 and machine
Oil reflux 12 unicom of oil pipe, flowline 3 153 extend in notch 62, and flowline 1 extends to the limit side of oil groove 1
Edge position, flowline 2 152 extend to the limiting edge position of oil groove 2 65.Separating valve 14 is located at the right-angled intersection of oil distributing pipe 15
Portion, up and down four orientation be respectively equipped with fuel feed hole 144, oil outlet 3 143, oil outlet 1 and oil outlet 2 142,
Fuel feed hole 144, oil outlet 3 143, oil outlet 1 and oil outlet 2 142 respectively with oil inlet pipe 154, flowline 3 153, go out
Oil pipe 1 and flowline 2 152 dock unicom.It is equipped with by oil duct 1, oil duct 2 172,3 173 and of oil duct in spool 17
The oblique fork-shaped oil circuit for the intercommunication that oil duct 4 174 forms, oil duct 4 174 and about 3 173 oil duct connect in line, oil duct 1
The left and right sides of oil duct 4 174 is symmetrically distributed in oil duct 2 172, the angle with oil duct 4 174 is all 45 ゜.
Setting fuel contents gauge 2 13, separating valve 14 and oil distributing pipe 15 on machine oil reflux oil pipe 12, three branch of oil distributing pipe 15
Pipe is respectively protruding into oil groove 1, oil groove 2 65 and notch 2, and separating valve 14 is mounted on oil distributing pipe 15, rotation in separating valve 14
It is connected with spool 17, while fuel contents gauge 1 is set on sending oil pipe line 11, fuel contents gauge 2 13, fuel contents gauge 1 and spool 17 divide
It is not connect with the control system of engine, forms oil return and detach control mechanism.When work, one 16 points of fuel contents gauge 2 13 and fuel contents gauge
Instantaneous flow is not calculated, and flow signal is included in the control system ECU of engine, when machine oil storage device 6 switches oil groove
When, ECU controls spool 17 and rotates, and by the combination of each oil duct, changes the flow direction of machine oil, to come from machine oil reflux oil pipe
Before machine oil in 12 is back in the oil groove in operating position, then, pass through the ratio of fuel contents gauge 1 and fuel contents gauge 2 13
Compared with, calculate oil groove switching before, whether flow back into unrefined oil tank by the machine oil of fuel contents gauge 1, when fuel contents gauge 2 13
Calculating flow reach setting value, then ECU control spool 17 rotation reset, make machine oil reflux oil pipe 12 in new machine oil be back to
It is now arranged in the new oil groove of operating position, so that effectively having extenuated original machine oil is mixed into machine caused by work machine oil now
The situation that the greasy property of oil changes.
Embodiment one：Initialization oil groove is oil groove 1, is located at the lower section of notch 62, when normal work, 4 174 He of oil duct
About 3 173 oil duct connects in line, state in a vertical shape, up and down respectively with 3 143 unicom of fuel feed hole 144 and oil outlet, oil duct
1 and oil duct 2 172 blocked by separating valve 14 so that the machine oil come in from oil inlet pipe 154, run through oil duct 4 174 and oil duct
3 173 enter flowline 3 153, flow into notch 62, return in oil groove 1, circulate；When switching oil groove, one 64 quilt of oil groove
Limiting edge position is moved to, oil groove 2 65 is moved to 62 lower section of notch and enters working condition, at this point, ECU control spools 17 rotate,
Oil duct 2 172 and oil duct 1 form the bend of 90 ゜, respectively with one 141 unicom of fuel feed hole 144 and oil outlet, oil duct 4 174
It is blocked by separating valve 14 with oil duct 3 173 so that the machine oil come in from oil inlet pipe 154 flows into oil duct 2 172, enters back into oil duct
One 171 90 ゜ turns of completions go backward through the inflow of flowline 1 and are in the oil groove 1 of limiting edge position, ensure that original
Oil returns former slot；It is resetted when the calculating flow of fuel contents gauge 2 13 reaches setting value, ECU control spools 17 rotate backward multiple
Position makes the fresh oil for aspirating to come from oil groove 2 65 run through oil duct 4 174 and oil duct 3 173, by flowline 3 153, flows into slot
In the oil groove 2 65 of 62 lower section of mouth, it ensure that fresh oil returns new slot.
Embodiment two：Initialization oil groove is oil groove 2 65, and program is same as above, only the rotation switching direction phase of spool 17
Instead.
In the handoff procedure of oil groove 1 and oil groove 2 65, the lower end of oil suction hose 10 is suitable for utilizing the elasticity of its own
Enter another oil groove from an oil groove, consequently facilitating lubricating oil pump 9 utilizes oil suction hose 10 from oil groove 1 or oil groove 2 65
Machine oil is aspirated, since the switching time of oil groove 1 and oil groove 2 65 is short, the break period that lubricating oil pump 9 aspirates machine oil is short, will not
The pumping of machine oil is had an impact.
Claims (6)
1. a kind of engine motor oil switches separator, including cylinder head（1）, cylinder block（2）, oil sump（3）, bent axle（4）, it is convex
Wheel shaft（5）, machine oil storage device（6）, lubricating oil pump（9）, oil suction hose（10）, send oil pipe line（11）With machine oil reflux oil pipe
（12）, cylinder block（2）It is equipped with crankshaft position sensor（7）, oil sump（3）It is equipped with sliding rail（67）, motor（68）And cover board
（61）, cover board（61）It is equipped with notch（62）, machine oil storage device（6）Including oil groove one（64）, oil groove two（65）And link block
（66）, machine oil storage device（6）Pass through screw body（69）With motor（68）Connection, is slided in oil sump（3）Interior sliding rail
（67）On, crankshaft position sensor（7）And motor（68）It is connect respectively with the control system of engine；It is characterized in that：Machine oil returns
Flow oil pipe（12）It is equipped with fuel contents gauge two（13）, separating valve（14）And oil distributing pipe（15）, send oil pipe line（11）It is equipped with fuel contents gauge
One（16）, separating valve（14）Interior rotation is connected with spool（17）, fuel contents gauge two（13）, fuel contents gauge one（16）And spool（17）Respectively
It is connect with the control system of engine.
2. engine motor oil according to claim 1 switches separator, characterized in that fuel contents gauge one（16）Positioned at machine oil
Pump（9）Top, fuel contents gauge two（13）Positioned at oil distributing pipe（15）Top, separating valve（14）Mounted on oil distributing pipe（15）On.
3. engine motor oil according to claim 1 switches separator, characterized in that oil distributing pipe（15）For cross four
Siphunculus is respectively equipped with oil inlet pipe up and down（154）, flowline three（153）, flowline one（151）With flowline two（152）.
4. engine motor oil according to claim 1 switches separator, characterized in that oil inlet pipe（154）It is returned with machine oil
Flow oil pipe（12）Unicom, flowline three（153）Extend to notch（62）It is interior, flowline one（151）Extend to oil groove one（64）'s
Limiting edge position, flowline two（152）Extend to oil groove two（65）Limiting edge position.
5. engine motor oil according to claim 1 switches separator, characterized in that separating valve（14）Positioned at oil distributing pipe
（15）Right-angled intersection portion, up and down four orientation be respectively equipped with fuel feed hole（144）, oil outlet three（143）, oil outlet one
（141）With oil outlet two（142）, fuel feed hole（144）, oil outlet three（143）, oil outlet one（141）With oil outlet two（142）Point
Not and oil inlet pipe（154）, flowline three（153）, flowline one（151）With flowline two（152）Dock unicom.
6. engine motor oil according to claim 1 switches separator, characterized in that spool（17）It is interior to be equipped with by oil duct
One（171）, oil duct two（172）, oil duct three（173）With oil duct four（174）The oblique fork-shaped oil circuit of the intercommunication of composition, oil duct four
（174）With oil duct three（173）Connect up and down in line, oil duct one（171）With oil duct two（172）It is symmetrically distributed in oil duct four
（174）The left and right sides, with oil duct four（174）Angle all be 45 ゜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849354.2A CN106321185B (en) | 2016-09-26 | 2016-09-26 | Engine motor oil switches separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849354.2A CN106321185B (en) | 2016-09-26 | 2016-09-26 | Engine motor oil switches separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321185A CN106321185A (en) | 2017-01-11 |
| CN106321185B true CN106321185B (en) | 2018-10-30 |
Family
ID=57820042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610849354.2A Active CN106321185B (en) | 2016-09-26 | 2016-09-26 | Engine motor oil switches separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842199B (en) * | 2018-09-07 | 2023-12-22 | 福建景丰科技有限公司 | Rotary switching type multipath spinning oiling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160135A (en) * | 1996-02-28 | 1997-09-24 | 卡明斯发动机公司 | Electronically controlled continuous lubricating oil replacement system |
| CN2335818Y (en) * | 1997-05-05 | 1999-09-01 | 邹亚雄 | Automotive speed change box oil replacing device |
| US5960908A (en) * | 1996-11-26 | 1999-10-05 | Suzuki Motor Corporation | Oil pan baffle plate |
| CN200951755Y (en) * | 2006-04-18 | 2007-09-26 | 立晏企业有限公司 | Synchronous oil changing apparatus for power direction machine |
| CN204664485U (en) * | 2014-12-26 | 2015-09-23 | 上海力申科学仪器有限公司 | Oil path distributor |
-
2016
- 2016-09-26 CN CN201610849354.2A patent/CN106321185B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160135A (en) * | 1996-02-28 | 1997-09-24 | 卡明斯发动机公司 | Electronically controlled continuous lubricating oil replacement system |
| US5960908A (en) * | 1996-11-26 | 1999-10-05 | Suzuki Motor Corporation | Oil pan baffle plate |
| CN2335818Y (en) * | 1997-05-05 | 1999-09-01 | 邹亚雄 | Automotive speed change box oil replacing device |
| CN200951755Y (en) * | 2006-04-18 | 2007-09-26 | 立晏企业有限公司 | Synchronous oil changing apparatus for power direction machine |
| CN204664485U (en) * | 2014-12-26 | 2015-09-23 | 上海力申科学仪器有限公司 | Oil path distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321185A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106321185B (en) | Engine motor oil switches separator | |
| CN207513998U (en) | Rise off line hydraulic power unit | |
| CN105156411B (en) | Novel hydraulic servo system of full-rotating rudder propeller | |
| CN107448425A (en) | Control valve and land leveller front wheel driven hydraulic system | |
| CN201714450U (en) | Filter system capable of replacing core without shutdown | |
| CN106194324B (en) | Engine motor oil switches separation method | |
| CN106437929B (en) | Mobile type engine motor oil switches separator | |
| CN106337708B (en) | Mobile type engine motor oil switches separation method | |
| CN205244000U (en) | Steering wheel master control valves | |
| CN203699748U (en) | Hydraulic system and crane | |
| CN106741152B (en) | Sweeping machine steering system, sweeping machine and sweeping machine rotating direction control method and device | |
| CN107061388B (en) | It is a kind of to prevent descending from shaking and turning to the lifting working platform Ye Qu mechanisms being emptied | |
| CN203130849U (en) | Clutch control valve | |
| CN106382266B (en) | A kind of Multifunctional vehicle special hydraulic system | |
| CN106640265A (en) | Engine oil collecting device capable of preventing pitch and inhaling air | |
| CN213451852U (en) | Electric multi-way valve | |
| CN206280122U (en) | A kind of Anti-inclining is emptied oil trap | |
| CN208089439U (en) | The double fuel tank oil feed line switching constructions of parallel connection of commercial car | |
| CN207920987U (en) | Rotary blade type hydraulic steering gear hydraulic system | |
| CN204227663U (en) | Air-conditioner and drip tray thereof | |
| CN206694340U (en) | It is a kind of to prevent descending from shaking and turning to the lifting working platform Ye Qu mechanisms being emptied | |
| CN104675767A (en) | Speed control system | |
| CN204805503U (en) | Automatically controlled operating system of car mechanical transmission | |
| CN2569928Y (en) | Sewer canal combined dredger | |
| CN106246279B (en) | Engine motor oil switching method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |