CN105673122B - A kind of variable air valve lift range mechanism oil channel structures - Google Patents
A kind of variable air valve lift range mechanism oil channel structures Download PDFInfo
- Publication number
- CN105673122B CN105673122B CN201610172680.4A CN201610172680A CN105673122B CN 105673122 B CN105673122 B CN 105673122B CN 201610172680 A CN201610172680 A CN 201610172680A CN 105673122 B CN105673122 B CN 105673122B
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- Prior art keywords
- oil
- cylinder cap
- oil duct
- control valve
- duct
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- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 149
- 230000001360 synchronised effect Effects 0.000 description 8
- 239000010721 machine oil Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000000243 solution Substances 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
- 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
- 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
Abstract
The invention discloses a kind of variable air valve lift range mechanism oil channel structures, including oil cylinder head way and rocking arm slinger and rocking arm oil duct, also include control valve oil duct and valve element, the oil cylinder head way is connected with rocking arm slinger; rocking arm slinger is connected with rocking arm oil duct; is provided with the draining chamber oil duct and cylinder cap oil input channel being connected between the control valve oil duct and oil cylinder head way side by side; the valve element, which is located in control valve oil duct, can correspond to draining chamber oil duct and the movement of cylinder cap oil input channel, and the control valve oil duct is provided with control valve oil input channel.It is controlled by a magnetic valve, oil channel structures are simple, and processing and assembling are easy, and technique is relatively easy, and cost is low.
Description
Technical field
The present invention relates to engine valve actuating mechanism technical field, more particularly, to a kind of variable air valve lift range mechanism oil circuit knot
Structure.
Background technology
Valve actuating mechanism is one of two great institutions crucial on engine, and valve actuating mechanism is the controlling organization of inlet and outlet, and it is pressed
According to the requirement of the job order and the course of work of cylinder, periodically it is opened and closed inlet and outlet door, supplies combustion mixture (gas to cylinder
Road injected petrol machine) or fresh air (diesel engine) and waste gas is discharged in time, meet the air intake-exhaust demand of engine, pass through conjunction
The intake and exhaust moment design of reason, meet the performance requirement of engine.When inlet and outlet door is closed, ensure cylinder seal.Gazogene
Structure movement parts are more, more by other influences factor, and the stressing conditions of each are more complicated in motion process, to the precision of each
Higher with intensity requirement, the performance level of valve actuating mechanism is very big to the power performance and NVH and reliability effect of engine.
As discharge standard plus tight and oil consumption reduce, increasing engine uses direct-injection supercharging technology, valve actuating mechanism
Using VVT (VVT) mechanisms and VVL (lift range variable) mechanism, to meet that the performance of high-performance enginer will
Ask, while obtain lower engine consumption and Geng Gao discharge standard.In view of these requirements, VVT systems and VVL is increasingly
More engines uses.Traditional valve actuating mechanism valve stroke is fixed with crank angle change curve, in no VVL feelings
The valve stroke of same crankshaft angles is constant under condition.But engine rotating speed and load variations in real work are very frequent, fortune
Row operating mode is also very complicated, and fixed valve stroke can not take into account various operating modes, and different valve strokes can not be provided in different operating modes,
So as to cause can not just to play optimum performance in other non-optimal valve strokes.Compared with fixed air-distributing valve lift, changeable air valve
Lift then can be under the rotating speed and load in the whole working range of engine, there is provided suitable valve opening, height is closed, from
And improve engine inlet and outlet performance, preferably meet engine power in high rotating speed and the slow-speed of revolution, big load and Smaller load
Property, the requirement of economy, waste gas discharge, it is overall to improve engine performance.
As discharge and fuel economy regulation are more and more stricter, lift range variable technology has turned into the mark of lifting engine performance
One of cause property key technology.But how complicated existing variable air valve lift range mechanism oil channel structures are, the corresponding cylinder of a magnetic valve
The one-to-one control of rocking arm, oil circuit arrangement is complicated, and processing is cumbersome, and cost is high.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention are to provide a kind of variable air valve lift range mechanism oil
Line structure, to reach simple in construction, the low purpose of cost.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of variable air valve lift range mechanism oil channel structures, including oil cylinder head way and rocking arm slinger and rocking arm oil duct, also
Including control valve oil duct and valve element, the oil cylinder head way is connected with rocking arm slinger, and rocking arm slinger is connected with rocking arm oil duct, institute
The draining chamber oil duct and cylinder cap oil input channel for being provided with and being connected side by side between control valve oil duct and oil cylinder head way are stated, the valve element is located at control
Draining chamber oil duct and the movement of cylinder cap oil input channel can be corresponded in valve oil road processed, the control valve oil duct is provided with control valve oil input channel.
Further, the oil cylinder head way includes cylinder cap main oil gallery, cylinder cap transverse direction oil duct and cylinder cap longitudinal direction oil duct, described to shake
Arm axle oil duct is connected by cylinder cap transverse direction oil duct and cylinder cap longitudinal direction oil duct with cylinder cap main oil gallery.
Control valve oil input channel is corresponded in the control valve oil duct and is provided with screen pack.
It is connected between the oil cylinder head way and rocking arm slinger by bearing cap oil duct.
Described control valve oil input channel one end is connected with control valve oil duct, the control valve oil input channel other end and cylinder cap main oil gallery one
Section is connected, and another section of cylinder cap main oil gallery is be connected with draining chamber oil duct and cylinder cap oil input channel section, one section of cylinder cap main oil gallery and cylinder
It is provided with and blocks between another section of lid main oil gallery.
The cylinder cap main oil gallery is connected with cylinder cap transverse direction oil duct, and cylinder cap transverse direction oil duct is connected with cylinder cap longitudinal direction oil duct.
The rocking arm oil duct is one group, and one group of rocking arm oil duct is connected with rocking arm slinger.
The present invention compared with prior art, has advantages below：It is controlled by a magnetic valve, oil channel structures letter
Single, processing and assembling are easy, and technique is relatively easy, and cost is low；Reasonable in design, stable and reliable in work, system responsiveness is good,
Improve engine performance.
Brief description of the drawings
The content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is oil channel structures schematic diagram of the present invention.
In figure：1. control valve oil duct, 2. draining chamber oil ducts, 3. cylinder cap oil input channels, 4. control valve oil input channels, the main oil of 5. cylinder caps
Road, 6. cylinder cap transverse direction oil ducts, 7. cylinder cap longitudinal direction oil ducts, 8. bearing cap oil ducts, 9. rocking arm slingers, 10. rocking arm oil ducts I, 11. shake
Arm oil duct II, 12. rocking arm oil ducts III.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Explanation.
As shown in figure 1, the variable air valve lift range mechanism oil channel structures, including control valve oil duct 1, oil cylinder head way, bearing cap
Oil duct 8, rocking arm slinger 9 and rocking arm oil duct, wherein, oil cylinder head way includes cylinder cap main oil gallery 5, cylinder cap transverse direction oil duct 6, cylinder cap
Longitudinal oil duct 7, cylinder cap main oil gallery upper end are connected with cylinder cap transverse direction oil duct, and cylinder cap transverse direction oil duct is connected with cylinder cap longitudinal direction oil duct.
Control valve oil duct 1 and the side by side parallel of cylinder cap main oil gallery 5 are set, by letting out between control valve oil duct and cylinder cap main oil gallery
Oil pocket oil duct 2, cylinder cap oil input channel 3, control valve oil input channel 4 be connected, draining chamber oil duct, cylinder cap oil input channel, control valve oil input channel from
It is up to lower to set.
Be divided to not communicate directly two sections of cylinder cap main oil gallery 5, cylinder cap main oil gallery epimere and cylinder cap main oil gallery hypomere, cylinder cap master
Blocking, draining chamber oil duct and cylinder cap oil input channel and cylinder cap main oil gallery epimere are provided between oil duct epimere and cylinder cap main oil gallery hypomere
It is connected, control valve oil input channel is connected with cylinder cap main oil gallery hypomere；Control valve oil input channel one end is connected with control valve oil duct, control valve
The oil input channel other end is connected with cylinder cap main oil gallery hypomere.
The draining chamber oil duct being connected is provided between control valve oil duct and cylinder cap main oil gallery side by side and cylinder cap oil input channel, valve element are set
Draining chamber oil duct and the movement of cylinder cap oil input channel can be corresponded in control valve oil duct, controls draining chamber oil duct and cylinder cap oil input channel to lead to
It is disconnected.
Oil cylinder head way includes cylinder cap main oil gallery, cylinder cap transverse direction oil duct and cylinder cap longitudinal direction oil duct, cylinder cap longitudinal direction oil duct and bearing
Lid oil duct is connected, and bearing cap oil duct 8 is connected with rocking arm slinger 9；Rocking arm oil duct is one group, respectively rocking arm oil duct I 10, rocking arm
Oil duct II 11, rocking arm oil duct III 12, one group of rocking arm oil duct are connected with rocking arm slinger.
Control valve oil input channel is corresponded in control valve oil duct and is provided with screen pack.I.e. in control valve oil duct, screen pack is located at cylinder
Between lid oil input channel port and control valve oil input channel port, specific screen pack can be arranged in the control valve in control valve oil duct.
The variable air valve lift range mechanism oil circuit arrangement of the present invention is completed based on the two-stage roller rocker arms with rocker arm shaft, the machine
Structure realizes lift range variable by the diminution between oil pressure actuated height lift rocker arm.Machine oil is controlled to enter from cylinder cap oil input channel
Cylinder cap main oil gallery, machine oil is delivered to bearing cap oil duct by cylinder cap transverse direction oil duct and cylinder cap longitudinal direction oil duct again, then is delivered to rocking arm
Slinger, it is delivered in each rocking arm oil duct.Machine oil promotes height lift rocker arm synchronous piston by rocking arm gallery pressure, realizes
Variable valve lift.
Engine in low-speed running, OCV Oil Control Valve reduce control valve oil duct inner engine oil pressure, height lift rocker arm it
Between synchronous piston be compressed in the presence of back-moving spring and spring guide in low lift rocker arm, two rocking arms are each independent
Motion, it is non-interference.At this moment two drive high lift rocker arm to control inlet valve to be in low liter by low lift cams respectively
Journey position, low lift cams lift is small, so that IO Intake Valve Opens very little, thus the gaseous mixture for entering engine cylinder is also relative
It is few.By controlling air inflow, improve engine performance, vehicle demand under speed operation in satisfaction.
With the rise of engine speed, when reaching switch condition, rocker arm shaft inner engine oil pressure is injected in control valve increase,
Active synchronization piston removes under oil pressure actuated to master rocker direction, after spring-compressed, synchronous piston press-in master rocker pin-and-hole
Interior, major-minor rocking arm is connected by synchronous piston.At this moment synchronous piston makes two rocking arms while acted through two rocking arms.It is now high
Lift cams drive rocking arm, control IO Intake Valve Opens, the opening time of inlet valve and lift increase.When engine is in high speed shape
State, extend into, exhaust valve at the same open " valve overlap " time, be improved engine power and moment of torsion.Meet vehicle
Power demand under at a high speed.
When engine is down to low speed Smaller load state by high speed high load working condition, oil in rocker arm shaft is controlled by control valve
Pressure, the machine oil that oil pressure is reduced in rear arm axis hole start off-load, and synchronous piston resets under action of reset spring, by synchronous piston
It is pushed into the synchronous piston hole of secondary-rocker, two rocking arms are disconnected and respective self-movement again.
Variable air valve lift range mechanism oil pressure control is made up of magnetic valve, hydraulic valve two parts.Controller mainly passes through machine
Oil pressure come control variable lift mechanisms realization act.Machine oil flows into cylinder cap oil input channel from control valve oil input channel through filter screen.Work as electricity
Magnet valve controls needle-valve state, i.e. control valve wick-like state, meets that machine oil enters from cylinder cap oil input channel under different operating modes, from draining chamber oil
Road pressure release outflow.
The design is a kind of brand-new existing form of valve actuating mechanism variable valve actuator for air oil circuit arrangement, using control valve control machine
Flow direction of the oil in control valve oil duct, whole oil circuit arrangement is succinct, and easy to process, oil circuit bang path is short, different air valve lift
Handoff response speed is fast.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as employ the present invention design and technical scheme carry out various unsubstantialities improvement, or it is not improved will
The design and technical scheme of the present invention directly applies to other occasions, within protection scope of the present invention.
Claims (7)
1. a kind of variable air valve lift range mechanism oil channel structures, including oil cylinder head way and rocking arm slinger and rocking arm oil duct, it is special
Sign is：Also include control valve oil duct and valve element, the oil cylinder head way is connected with rocking arm slinger, rocking arm slinger and rocking arm oil
Road is connected, and is provided with the draining chamber oil duct and cylinder cap oil input channel being connected between the control valve oil duct and oil cylinder head way side by side, described
Valve element, which is located in control valve oil duct, can correspond to draining chamber oil duct and the movement of cylinder cap oil input channel, and the control valve oil duct is provided with control
Valve oil input channel.
2. variable air valve lift range mechanism oil channel structures as claimed in claim 1, it is characterised in that：The oil cylinder head way includes cylinder cap
Main oil gallery, cylinder cap transverse direction oil duct and cylinder cap longitudinal direction oil duct, the rocking arm slinger pass through cylinder cap transverse direction oil duct and cylinder cap longitudinal oil
Road is connected with cylinder cap main oil gallery.
3. variable air valve lift range mechanism oil channel structures as claimed in claim 1, it is characterised in that：It is corresponding in the control valve oil duct
Control valve oil input channel is provided with screen pack.
4. variable air valve lift range mechanism oil channel structures as claimed in claim 1, it is characterised in that：The oil cylinder head way and rocker arm shaft
It is connected between oil duct by bearing cap oil duct.
5. variable air valve lift range mechanism oil channel structures as claimed in claim 2, it is characterised in that：Described control valve oil input channel one end
It is connected with control valve oil duct, the control valve oil input channel other end is connected for one section with cylinder cap main oil gallery, and another section of cylinder cap main oil gallery is
Be connected section with draining chamber oil duct and cylinder cap oil input channel, is provided with and blocks between one section of cylinder cap main oil gallery and another section of cylinder cap main oil gallery.
6. variable air valve lift range mechanism oil channel structures as claimed in claim 2, it is characterised in that：The cylinder cap main oil gallery and cylinder cap
Horizontal oil duct is connected, and cylinder cap transverse direction oil duct is connected with cylinder cap longitudinal direction oil duct.
7. variable air valve lift range mechanism oil channel structures as claimed in claim 2, it is characterised in that：The rocking arm oil duct is one group,
One group of rocking arm oil duct is connected with rocking arm slinger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172680.4A CN105673122B (en) | 2016-03-22 | 2016-03-22 | A kind of variable air valve lift range mechanism oil channel structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172680.4A CN105673122B (en) | 2016-03-22 | 2016-03-22 | A kind of variable air valve lift range mechanism oil channel structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673122A CN105673122A (en) | 2016-06-15 |
| CN105673122B true CN105673122B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610172680.4A Active CN105673122B (en) | 2016-03-22 | 2016-03-22 | A kind of variable air valve lift range mechanism oil channel structures |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554517U (en) * | 2009-10-14 | 2010-08-18 | 奇瑞汽车股份有限公司 | Engine lubricating oil channel |
| CN102269028A (en) * | 2011-06-30 | 2011-12-07 | 奇瑞汽车股份有限公司 | Lubrication oil way of engine |
| CN101655021B (en) * | 2009-09-21 | 2011-12-14 | 奇瑞汽车股份有限公司 | Lubricating oil passage of engine cylinder body assembly |
| CN202851102U (en) * | 2012-10-26 | 2013-04-03 | 东风汽车公司 | Oil duct structure of variable valve lift mechanism of internal combustion engine |
| CN204984524U (en) * | 2015-07-28 | 2016-01-20 | 重庆长安汽车股份有限公司 | Engine variable valve lift system oil circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101154412B1 (en) * | 2010-11-11 | 2012-06-15 | 현대자동차주식회사 | Hydraulic variable vavlve lift apparatus |
| JP5859493B2 (en) * | 2013-07-09 | 2016-02-10 | 本田技研工業株式会社 | Oil passage structure of internal combustion engine |
-
2016
- 2016-03-22 CN CN201610172680.4A patent/CN105673122B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655021B (en) * | 2009-09-21 | 2011-12-14 | 奇瑞汽车股份有限公司 | Lubricating oil passage of engine cylinder body assembly |
| CN201554517U (en) * | 2009-10-14 | 2010-08-18 | 奇瑞汽车股份有限公司 | Engine lubricating oil channel |
| CN102269028A (en) * | 2011-06-30 | 2011-12-07 | 奇瑞汽车股份有限公司 | Lubrication oil way of engine |
| CN202851102U (en) * | 2012-10-26 | 2013-04-03 | 东风汽车公司 | Oil duct structure of variable valve lift mechanism of internal combustion engine |
| CN204984524U (en) * | 2015-07-28 | 2016-01-20 | 重庆长安汽车股份有限公司 | Engine variable valve lift system oil circuit |
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| Publication number | Publication date |
|---|---|
| CN105673122A (en) | 2016-06-15 |
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