CN104847435A - Valve timing mechanism of engine, engine and vehicle - Google Patents
Valve timing mechanism of engine, engine and vehicle Download PDFInfo
- Publication number
- CN104847435A CN104847435A CN201410234938.XA CN201410234938A CN104847435A CN 104847435 A CN104847435 A CN 104847435A CN 201410234938 A CN201410234938 A CN 201410234938A CN 104847435 A CN104847435 A CN 104847435A
- Authority
- CN
- China
- Prior art keywords
- leading screw
- distribution device
- valve
- screw nut
- feed screw
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title abstract description 7
- 239000010721 machine oil Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 14
- 210000003746 feather Anatomy 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009194 climbing Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000010705 motor oil Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a valve timing mechanism of an engine and further discloses the engine and a vehicle. The valve timing mechanism comprises a camshaft, a valve (11), a rocker arm (12), a lead screw (13), a lead screw nut (14) and an impeller (15), wherein the impeller is driven by oil provided by an oil pump of the engine. The lead screw nut (14) is arranged on the lead screw (13) in a matched manner, and the impeller (15) is coaxially connected to the lead screw (13) or the lead screw nut (14) so as to drive the lead screw (13) to axially move; a cam (10) of the camshaft abuts against and ejects the rocker arm (12); and the valve (11) is connected to one end of the rocker arm (12), and the lead screw (13) is connected to the other end of the rocker arm (12), so that the rocker arm (12) is driven to rotate. The engine comprises the valve timing mechanism, and the vehicle comprises the engine. Through the scheme, the engine valve timing mechanism with the changeable valve lifting range can be provided.
Description
Technical field
The present invention relates to engine art, particularly, relate to a kind of distribution device of motor, also relate to and a kind of there is the motor of this distribution device and a kind of vehicle with this motor.
Background technique
The valve lift of traditional motor is fixing immutable, and namely the cam profile of camshaft only has one.This just causes this lift can not make motor all obtain good response in high velocity and low velocity zone.
The object of variable valve lift is exactly to change air inflow, promotes usefulness to reach thus reduces oil consumption.Automobile run into always in the process of moving idling, acceleration, at the uniform velocity with deceleration these elementary processes, if all processes be use non-lift range variable, will cost performance be reduced.For example, when automobile ground zero, if at this time suck a large amount of air, so this time, air fuel ratio will decline, and motor is in the state of lean-burn, moment of torsion Slow lifting, and rotating speed improves but is short of power, and cannot shift gears rapidly, only have excessive fuel consumption like this.On the contrary, when travelling on a highway, if at this moment air is inadequate, gasoline just cannot burn fully, also can very excessive fuel consumption.So when fuel injection quantity is fixing, changing air inflow to meet the requirement to power under different situations, is exactly the effect of variable valve lift technology.
Summary of the invention
The object of this invention is to provide a kind of engine valve actuating mechanism of variable valve lift.
To achieve these goals, the invention provides a kind of distribution device of motor, this distribution device comprises camshaft, valve, rocking arm, leading screw, the impeller that feed screw nut and the machine oil provided by the oil pump of motor drive, described feed screw nut is engaged on described leading screw, described impeller is connected to described leading screw or feed screw nut coaxially, move axially to drive described leading screw, the cam of described camshaft is supported on described rocking arm, described valve is connected to one end of described rocking arm, described leading screw is connected to the other end of described rocking arm, rotate to drive described rocking arm.
Preferably, described distribution device comprises cylinder head, this cylinder head is formed with host cavity and oil passageway, and described impeller to be arranged in described host cavity and to be positioned on the path of described oil passageway, can be driven by described machine oil.
Preferably, described feed screw nut circumference is fixed on described cylinder head, and described impeller is connected to described leading screw coaxially.
Preferably, described cylinder head is formed with shoulder hole, this shoulder hole comprises large footpath section and path section, described large footpath section is communicated with described host cavity by described path section, described feed screw nut is arranged in the section of described large footpath, described leading screw to enter in described host cavity, is provided with seal ring between the outer circumferential face of described leading screw and the hole wall of described path section through described shoulder hole.
Preferably, described feed screw nut is connected to described cylinder head by feather key, and described leading screw is arranged with spring, and this spring is supported between the end face of described feed screw nut and the step surface of described shoulder hole.
Preferably, guide sleeve is provided with between the hole wall of described feed screw nut and described large footpath section, described guide sleeve is fixed on described cylinder head, and the outer circumferential face of described feed screw nut and the inner peripheral surface of described guide sleeve are formed with corresponding keyway respectively, and described feather key is arranged in described keyway.
Preferably, one end ball-and-socket of described leading screw is connected to described rocking arm.
Preferably, described distribution device comprises valve guide bushing and valve spring, and this valve guide bushing and valve spring are set on described valve.
Pass through technique scheme, when engine speed raises, engine oil pressure and flow increase, the rotary driving force that machine oil acts on impeller increases, and the climbing power of leading screw increases, when climbing power increase to can overcome cam act on the downforce of rocking arm time, leading screw or feed screw nut rotate forward, thus make leading screw increase, with the end of jack-up rocking arm, valve opening is increased; When engine speed is reduced, engine oil pressure and flow reduce, the rotary driving force that machine oil acts on impeller reduces, the climbing power of leading screw reduces, when climbing power be not enough to overcome cam act on the downforce of rocking arm time, leading screw or feed screw nut counterrotating, thus leading screw is declined, drive the end of rocking arm to decline, valve opening is reduced.
The present invention also provides a kind of motor, and this motor comprises distribution device as above.
The present invention also provides a kind of vehicle, and this vehicle comprises motor as above.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the cross-sectional schematic of the distribution device of the motor of a preferred embodiment of the invention.
Description of reference numerals
10 cam 11 valve 12 rocking arm 13 leading screws
14 feed screw nut 15 impeller 16 cylinder head 161 oil passageways
162 shoulder holes 1621 large footpath section 1622 path section 163 host cavity
17 seal ring 18 feather key 19 spring 20 guide sleeves
21 valve guide bushing 22 valve spring 23 spring seats
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower " of use refers to reference to shown in the drawings upper and lower; It is inside and outside that " inside and outside " refers to relative to the profile of each parts own.
According to an aspect of the present invention, a kind of distribution device of motor is provided, this distribution device comprises camshaft, valve 11, rocking arm 12, leading screw 13, the impeller 15 that feed screw nut 14 and the machine oil provided by the oil pump of motor drive, described feed screw nut 14 is engaged on described leading screw 13, described impeller 15 is connected to described leading screw 13 or feed screw nut 14 coaxially, move axially to drive described leading screw 13, the cam 10 of described camshaft is supported on described rocking arm 12, described valve 11 is connected to one end of described rocking arm 12, described leading screw 13 is connected to the other end of described rocking arm 12, rotate to drive described rocking arm 12.
First it should be noted that, in motor car engine, engine speed is different, then engine oil pressure and flow are also different.Particularly, when engine speed raises, engine oil pressure increases, and flow increases; When engine speed reduces, engine oil pressure reduces, and flow reduces.
In distribution device of the present invention, because impeller 15 is connected to leading screw 13 or feed screw nut 14 coaxially, therefore, the rotary driving force that machine oil acts on impeller 15 will make leading screw 13 produce climbing power.When engine speed raises, engine oil pressure and flow increase, the rotary driving force that machine oil acts on impeller 15 increases, the climbing power of leading screw 13 increases, when climbing power increase to can overcome cam 10 act on the downforce of rocking arm 12 time, leading screw 13 or feed screw nut 14 rotate forward, thus make leading screw 13 increase, with the end of jack-up rocking arm 12, valve opening is increased; When engine speed is reduced, engine oil pressure and flow reduce, the rotary driving force that machine oil acts on impeller 15 reduces, the climbing power of leading screw 13 reduces, when climbing power be not enough to overcome cam 10 act on the downforce of rocking arm 12 time, leading screw 13 or feed screw nut 14 counterrotating, thus leading screw 13 is declined, drive the end of rocking arm 12 to decline, valve opening is reduced.
Therefore, pass through technique scheme, make the present invention can provide a kind of engine valve actuating mechanism of variable valve lift, this distribution device can realize mating applicable valve lift under different engine, less valve lift is used during the slow-speed of revolution, be conducive to increasing turbulent flow in cylinder, improve velocity of combustion, increase low engine speed output torque; Use larger valve lift then can limit raising air inflow during high rotating speed, and then power stage when promoting high rotating speed.
It is pointed out that in distribution device of the present invention, valve lift determines primarily of the molded line of cam 10, and leading screw 13 only plays auxiliary control.In the process that valve is opened, cam 10 presses down rocking arm 12, makes rocking arm 12 produce downward translation, and when engine speed raises, when leading screw 13 rises, rocking arm 12 rotates around rocking arm axis, and the one end being connected to valve declines, and increases the aperture of valve; When engine speed reduces, when leading screw 13 declines, rocking arm 12 rotates around rocking arm axis, and the one end being connected to valve rises, and reduces the aperture of valve.Here, rocking arm 12 can be interpreted as the lever of point floating, its in the course of the work existing translation have rotation again.
Usually be provided with oil passageway in the cylinder head of motor, bear the larger friction surface of load for oil delivery oil pump pumped out to crankshaft main bearing, camshaft bearing etc.Preferably, as shown in Figure 1, described distribution device comprises cylinder head 16, this cylinder head 16 is formed with host cavity 163 and oil passageway 161, described impeller 15 to be arranged in described host cavity 163 and to be positioned on the path of described oil passageway 161, can be driven by described machine oil.Here, in order to make impeller 15 obtain larger rotary driving force, preferably, as shown in Figure 1, the axes normal of impeller 15 is in the flow direction of machine oil.
Those skilled in the art it is easily understood that impeller 15 can be connected in leading screw 13 and feed screw nut 14 coaxially any one, move axially to drive leading screw 13.
As a kind of mode of execution, impeller 15 is connected to feed screw nut 14 coaxially, rotate to drive feed screw nut 14, in this case, by arranging upper limit plate and lower limiting board respectively above and below feed screw nut 14, can move axially to limit feed screw nut 14, thus when feed screw nut 14 rotates forward, the climbing power that feed screw nut 14 will apply upwards to leading screw 13, rises to make leading screw 13.
As another kind of mode of execution, as shown in Figure 1, described feed screw nut 14 circumference is fixed on described cylinder head 16, and described impeller 15 is connected to described leading screw 13 coaxially.When impeller 15 rotates, drive leading screw 13 to rotate, feed screw nut 14 circumference is fixing, leading screw 13 spiral.
When impeller 15 is connected to leading screw 13, preferably, as shown in Figure 1, described cylinder head 16 is formed with shoulder hole 162, this shoulder hole 162 comprises large footpath section 1621 and path section 1622, described large footpath section 1621 is communicated with described host cavity 163 by described path section 1622, described feed screw nut 14 is arranged in described large footpath section 1621, described leading screw 13 to enter in described host cavity 163, is provided with seal ring 17 between the outer circumferential face of described leading screw 13 and the hole wall of described path section 1622 through described shoulder hole 162.By arranging seal ring 17, host cavity 163 and large footpath section 1621 being separated, can prevent machine oil from flowing to cylinder head 16 by large footpath section 1621 outside, causing machine oil to lose.
Feed screw nut 14 can be connected to cylinder head 16 by feather key or feather key, is fixed on cylinder head 16. to make feed screw nut 14 circumference
As a kind of preferred implementation of the present invention, as shown in Figure 1, described feed screw nut 14 is connected to described cylinder head 16 by feather key 18, and described leading screw 13 is arranged with spring 19, and this spring 19 elastic support is between the end face and the step surface of described shoulder hole 162 of described feed screw nut 14.Here, spring 19 is in compressive state all the time, with the spring force that can apply upwards to feed screw nut 14, due to screw-thread fit between leading screw 13 and feed screw nut 14, therefore feed screw nut 14 can apply upwards to leading screw 13 active force, to make leading screw 13 support all the time on rocking arm 12, thus ensure that rocking arm 12 contacts all the time with cam 10.
Preferably, guide sleeve 20 is provided with between the hole wall of described feed screw nut 14 and described large footpath section 1621, described guide sleeve 20 is fixed on described cylinder head 16, the outer circumferential face of described feed screw nut 14 and the inner peripheral surface of described guide sleeve 20 are formed with corresponding keyway respectively, and described feather key 18 is arranged in described keyway.Here, the keyway for holding feather key 18 can be processed in advance on guide sleeve 20, and then by guide sleeve 20 compression fit in large footpath section 1621.This method is processed compared with keyway with direct on the body of cylinder head 16, is very easy to the processing of keyway and shaping.
Preferably, one end of described leading screw 13 can be connected to described rocking arm 12 by ball-and-socket, can not cause interference to make the rotation of leading screw 14 to rocking arm 12.
Particularly, described distribution device also comprises valve guide bushing 21, valve spring 22, spring seat 23, valve guide bushing 21 and valve spring 22 are set on described valve 11, valve guide bushing 21 is for giving the motion guide of valve 11, valve spring 22 resets for making valve 11, valve spring 22 one end is supported on cylinder head or cylinder block, and the other end is pressed against on spring seat 23.
According to a further aspect in the invention, provide a kind of motor, this motor comprises according to distribution device of the present invention.
According to also one side of the present invention, provide a kind of vehicle, this vehicle comprises according to motor of the present invention.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the distribution device of a motor, it is characterized in that, this distribution device comprises camshaft, valve (11), rocking arm (12), leading screw (13), the impeller (15) that feed screw nut (14) and the machine oil provided by the oil pump of motor drive, described feed screw nut (14) is engaged on described leading screw (13), described impeller (15) is connected to described leading screw (13) or feed screw nut (14) coaxially, move axially to drive described leading screw (13), the cam (10) of described camshaft is supported on described rocking arm (12), described valve (11) is connected to one end of described rocking arm (12), described leading screw (13) is connected to the other end of described rocking arm (12), rotate to drive described rocking arm (12).
2. distribution device according to claim 1, it is characterized in that, described distribution device comprises cylinder head (16), this cylinder head (16) is formed with host cavity (163) and oil passageway (161), described impeller (15) to be arranged in described host cavity (163) and to be positioned on the path of described oil passageway (161), can be driven by described machine oil.
3. distribution device according to claim 2, is characterized in that, described feed screw nut (14) circumference is fixed on described cylinder head (16), and described impeller (15) is connected to described leading screw (13) coaxially.
4. distribution device according to claim 3, it is characterized in that, described cylinder head (16) is formed with shoulder hole (162), this shoulder hole (162) comprises large footpath section (1621) and path section (1622), described large footpath section (1621) is communicated with described host cavity (163) by described path section (1622), described feed screw nut (14) is arranged in described large footpath section (1621), described leading screw (13) through described shoulder hole (162) to enter in described host cavity (163), seal ring (17) is provided with between the outer circumferential face of described leading screw (13) and the hole wall of described path section (1622).
5. distribution device according to claim 4, it is characterized in that, described feed screw nut (14) is connected to described cylinder head (16) by feather key (18), described leading screw (13) is arranged with spring (19), this spring (19) elastic support is between the end face and the step surface of described shoulder hole (162) of described feed screw nut (14).
6. distribution device according to claim 5, it is characterized in that, guide sleeve (20) is provided with between the hole wall of described feed screw nut (14) and described large footpath section (1621), described guide sleeve (20) is fixed on described cylinder head (16), the outer circumferential face of described feed screw nut (14) and the inner peripheral surface of described guide sleeve (20) are formed with corresponding keyway respectively, and described feather key (18) is arranged in described keyway.
7. distribution device according to claim 3, is characterized in that, one end ball-and-socket of described leading screw (13) is connected to described rocking arm (12).
8. distribution device according to claim 1, it is characterized in that, described distribution device comprises valve guide bushing (21) and valve spring (22), and this valve guide bushing (21) and valve spring (22) are set on described valve (11).
9. a motor, is characterized in that, this motor comprises the distribution device according to any one of claim 1-8.
10. a vehicle, is characterized in that, this vehicle comprises motor according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234938.XA CN104847435B (en) | 2014-05-29 | 2014-05-29 | Valve actuating mechanism, engine and the vehicle of engine |
| DE102015101659.1A DE102015101659A1 (en) | 2014-05-29 | 2015-02-05 | Distribution device for an internal combustion engine, internal combustion engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234938.XA CN104847435B (en) | 2014-05-29 | 2014-05-29 | Valve actuating mechanism, engine and the vehicle of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847435A true CN104847435A (en) | 2015-08-19 |
| CN104847435B CN104847435B (en) | 2017-07-11 |
Family
ID=53847357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410234938.XA Active CN104847435B (en) | 2014-05-29 | 2014-05-29 | Valve actuating mechanism, engine and the vehicle of engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104847435B (en) |
| DE (1) | DE102015101659A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113468748A (en) * | 2021-07-02 | 2021-10-01 | 温州大学 | Method and device for constructing friction model of engine gas distribution device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867112A (en) * | 1987-04-24 | 1989-09-19 | Fuji Jukogyo Kabushiki Kaisha | Method of assembling a valve-lash adjuster for internal combustion engines |
| US5233951A (en) * | 1992-09-25 | 1993-08-10 | Hausknecht Louis A | Flow restriction controlled variable engine valve system |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| CN101338703A (en) * | 2008-08-15 | 2009-01-07 | 黎伟权 | Engine air valve lift stepless regulating mechanism |
| US20090151676A1 (en) * | 2007-12-14 | 2009-06-18 | Hyundai Motor Company | Variable valve lift apparatus |
| CN102705027A (en) * | 2012-06-11 | 2012-10-03 | 吉林大学 | Valve stroke variable adjusting system |
-
2014
- 2014-05-29 CN CN201410234938.XA patent/CN104847435B/en active Active
-
2015
- 2015-02-05 DE DE102015101659.1A patent/DE102015101659A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867112A (en) * | 1987-04-24 | 1989-09-19 | Fuji Jukogyo Kabushiki Kaisha | Method of assembling a valve-lash adjuster for internal combustion engines |
| US5233951A (en) * | 1992-09-25 | 1993-08-10 | Hausknecht Louis A | Flow restriction controlled variable engine valve system |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| US20090151676A1 (en) * | 2007-12-14 | 2009-06-18 | Hyundai Motor Company | Variable valve lift apparatus |
| CN101338703A (en) * | 2008-08-15 | 2009-01-07 | 黎伟权 | Engine air valve lift stepless regulating mechanism |
| CN102705027A (en) * | 2012-06-11 | 2012-10-03 | 吉林大学 | Valve stroke variable adjusting system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113468748A (en) * | 2021-07-02 | 2021-10-01 | 温州大学 | Method and device for constructing friction model of engine gas distribution device |
| CN113468748B (en) * | 2021-07-02 | 2024-04-09 | 温州大学 | Method and device for constructing friction model of engine gas distribution device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015101659A1 (en) | 2015-12-03 |
| CN104847435B (en) | 2017-07-11 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 102206 North of Laoniuwan Village, Shayang Road, Shahe Town, Changping District, Beijing Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20150819 Assignee: Zhucheng Futian International Trade Co.,Ltd. Assignor: BEIQI FOTON MOTOR Co.,Ltd. Contract record no.: X2023980043791 Denomination of invention: The valve train of the engine, the engine, and the vehicle Granted publication date: 20170711 License type: Common License Record date: 20231018 |
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| EE01 | Entry into force of recordation of patent licensing contract |