CN110656996A - Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism - Google Patents
Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism Download PDFInfo
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- CN110656996A CN110656996A CN201911103658.4A CN201911103658A CN110656996A CN 110656996 A CN110656996 A CN 110656996A CN 201911103658 A CN201911103658 A CN 201911103658A CN 110656996 A CN110656996 A CN 110656996A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 201
- 230000009849 deactivation Effects 0.000 title claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 230000001276 controlling effect Effects 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims 4
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 35
- 239000010705 motor oil Substances 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F01L13/0005—Deactivating valves
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- 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
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
-
- 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
- F01L13/0005—Deactivating valves
- F01L2013/001—Deactivating cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention is suitable for the technical field of engines, and provides a cylinder deactivation mechanism, which comprises a driving mechanism and a lift mechanism, and also comprises: the elastic containing mechanism is arranged on the lift mechanism and used for limiting the transmission of the driving mechanism to the lift mechanism through elastic expansion and contraction and providing a fluid containing space; the output end of the pressurizing mechanism is communicated with the elastic accommodating mechanism and is used for injecting fluid into the elastic accommodating mechanism so that the elastic accommodating mechanism drives the lift mechanism to move up and down under the transmission of the driving mechanism; the input end of the pressure reducing mechanism is communicated with the elastic containing mechanism and is used for flowing and collecting the fluid in the elastic containing mechanism so as to enable the elastic containing mechanism to stop the transmission of the lift mechanism; the output end of the pressurizing mechanism and the input end of the pressure reducing mechanism are communicated with the elastic containing mechanism through the same channel, and the pressurizing mechanism and the pressure reducing mechanism are staggered in opening and closing states. The invention has simple structure, and effectively reduces the fuel consumption rate of the engine; the combustion is more thorough under medium and small loads, and the emission performance is good.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a cylinder deactivation mechanism and a hydraulic control variable valve device based on the cylinder deactivation mechanism.
Background
In recent years, with the strictness of emission regulations and the continuous rising of oil price, the energy-saving and emission-reducing technology of automobile engines is more and more regarded.
In the prior art, for a multi-cylinder engine working under medium and small loads for a long time, the working environment is severe, the effective fuel consumption rate under the medium and small loads is high, the combustion is insufficient, the emission performance is poor, and the fuel consumption of the multi-cylinder engine under the medium and small loads is reduced, so that the method becomes an important development direction for upgrading and improving the multi-cylinder engine at present.
However, in the prior art, the overall efficiency of the multi-cylinder engine is low when the multi-cylinder engine is under a small load, and the work of stopping a part of cylinders in the multi-cylinder engine is required.
Disclosure of Invention
The embodiment of the invention aims to provide a cylinder deactivation mechanism, and aims to solve the problem that oil leakage is caused when the cylinder deactivation mechanism works under the control of an electromagnetic valve in a small load state by stopping the work of partial cylinders in a multi-cylinder machine.
The embodiment of the invention is realized in such a way that the cylinder deactivation mechanism comprises a driving mechanism and a lift mechanism, and further comprises:
the elastic containing mechanism is arranged on the lift mechanism and used for limiting the transmission of the driving mechanism to the lift mechanism through elastic expansion and contraction and providing a fluid containing space;
the output end of the pressurizing mechanism is communicated with the elastic accommodating mechanism and is used for injecting fluid into the elastic accommodating mechanism so that the elastic accommodating mechanism drives the lift mechanism to move up and down under the transmission of the driving mechanism; and
the input end of the pressure reducing mechanism is communicated with the elastic containing mechanism and is used for flowing and collecting the fluid in the elastic containing mechanism so as to enable the elastic containing mechanism to stop the transmission of the lift mechanism;
the output end of the pressurizing mechanism and the input end of the pressure reducing mechanism are communicated with the elastic containing mechanism through the same channel, and the pressurizing mechanism and the pressure reducing mechanism are staggered in opening and closing states.
Another object of the embodiments of the present invention is that the elastic accommodating mechanism includes a transmission accommodating structure and a movable structure for operating the transmission accommodating structure, and the interior of the transmission accommodating structure is communicated with the pressurization mechanism and the depressurization mechanism through a passage provided on the movable structure.
Another objective of the embodiments of the present invention is that the transmission accommodating structure includes a tappet assembly elastically connected and matched with the transmission accommodating structure, and an accommodating cavity formed by the tappet assembly in a matching manner, wherein the size of the accommodating cavity is controlled by the elastic matching of the tappet assembly, and the accommodating cavity is communicated with a channel located on the movable structure.
Another object of the embodiment of the present invention is that one end of the tappet assembly is fixedly connected to the lift mechanism, and the other end of the tappet assembly is movably abutted to the driving mechanism.
It is a further object of an embodiment of the present invention that the pressurization mechanism includes a pump set structure for injecting fluid into the passage and a pressurization control structure for regulating the passage of fluid.
It is a further object of an embodiment of the present invention that the pressurization control structure includes a first control valve assembly for controlling the pumping arrangement to inject fluid into the passageway and a first one-way valve assembly for restricting the backflow of fluid within the passageway to the pumping arrangement.
It is a further object of an embodiment of the present invention that the pressure relief mechanism includes a collection structure and a pressure relief control structure that regulates the passage of fluid from the passage into the collection structure.
It is a further object of an embodiment of the present invention that the reduced pressure control structure includes a second control valve assembly for controlling fluid flow from the passageway to the collection structure and a second one-way valve assembly for restricting backflow of fluid in the collection structure into the passageway.
The embodiment of the present invention is realized in this way, and a hydraulic control variable valve device includes a valve mechanism, and further includes:
and the cylinder stopping mechanism is movably connected with the valve mechanism and used for driving the elastic containing mechanism and the lift mechanism to move through the driving mechanism and matching with the pressurizing mechanism and the pressure reducing mechanism to pressurize and reduce the pressure of the elastic containing mechanism.
According to the cylinder deactivation mechanism provided by the embodiment of the invention, after the pressurization mechanism is started, the purpose that the driving mechanism drives the lift mechanism to move through the elastic accommodating mechanism is realized through controlling the internal pressure of the elastic accommodating mechanism, and after the pressurization mechanism is closed and the decompression mechanism is started, the purpose that the driving mechanism cannot drive the lift mechanism to move through the elastic accommodating mechanism can be realized through controlling the internal pressure of the elastic accommodating mechanism, so that the lift mechanism is in a stop state, the purpose of cylinder deactivation can be realized, the structure is simple, and the change is small on the original valve actuating mechanism; the electromagnetic valve is adopted, so that the response is quick; the energy of the engine can be fully utilized, and the heat efficiency of the engine is improved; the fuel consumption rate of the engine is effectively reduced; the combustion is more thorough under medium and small loads, and the emission performance is good.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic control variable valve device based on a cylinder deactivation mechanism according to an embodiment of the invention.
In the drawings: 1. adjusting the screw; 2. adjusting the nut; 3. a rocker arm; 4. a locking plate; 5. a valve spring seat; 6. a valve chamber cover; 7. a valve main spring; 8. a valve train spring; 9. a valve guide; 10. an air valve; 11. a cylinder head; 12. a push rod; 13. a first tappet; 14. a return spring; 15. a cylinder body; 16. a second tappet; 17. a camshaft; 18. an oil discharge port; 19. a valve seat; 20. a first solenoid valve; 21. a first check valve; 22. a second solenoid valve; 23. a second one-way valve; 24. an oil pan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a cylinder deactivation mechanism provided for an embodiment of the present invention includes a driving mechanism and a lift mechanism, and further includes:
the elastic containing mechanism is arranged on the lift mechanism and used for limiting the transmission of the driving mechanism to the lift mechanism through elastic expansion and contraction and providing a fluid containing space;
the output end of the pressurizing mechanism is communicated with the elastic accommodating mechanism and is used for injecting fluid into the elastic accommodating mechanism so that the elastic accommodating mechanism drives the lift mechanism to move up and down under the transmission of the driving mechanism; and
the input end of the pressure reducing mechanism is communicated with the elastic containing mechanism and is used for flowing and collecting the fluid in the elastic containing mechanism so as to enable the elastic containing mechanism to stop the transmission of the lift mechanism;
the output end of the pressurizing mechanism and the input end of the pressure reducing mechanism are communicated with the elastic containing mechanism through the same channel, and the pressurizing mechanism and the pressure reducing mechanism are staggered in opening and closing states.
In the embodiment of the invention, after the pressurizing mechanism is started, the purpose that the driving mechanism drives the lift mechanism to move through the elastic accommodating mechanism is realized by controlling the internal pressure of the elastic accommodating mechanism, and after the pressurizing mechanism is closed and the decompression mechanism is started, the purpose that the driving mechanism cannot drive the lift mechanism to move through the elastic accommodating mechanism is realized by controlling the internal pressure of the elastic accommodating mechanism, so that the lift mechanism is in a stop state, and the purpose of cylinder stopping can be realized.
As shown in fig. 1, as a preferred embodiment of the present invention, the elastic accommodating mechanism includes a transmission accommodating structure and a movable structure for operating the transmission accommodating structure, and the interior of the transmission accommodating structure is communicated with the pressurization mechanism and the depressurization mechanism through a passage provided on the movable structure.
The transmission accommodating structure comprises a tappet assembly in elastic connection and matching and an accommodating cavity formed by matching the tappet assembly, the space size of the accommodating cavity is controlled by the elastic matching of the tappet assembly, and the accommodating cavity is communicated with a channel on the movable structure.
One end of the tappet component is fixedly connected with the lift mechanism, and the other end of the tappet component is movably abutted against the driving mechanism.
In the embodiment of the present invention, preferably, the movable structure includes a cylinder body 15, a through channel is formed in the cylinder body 15, a driving mechanism is arranged below the cylinder body 15, and the driving mechanism is preferably a cam shaft 17; the cylinder body 15 is provided with a transmission accommodating structure in a sliding fit manner, and the transmission accommodating structure comprises a tappet assembly and an accommodating cavity formed by matching the tappet assembly.
In the embodiment of the present invention, preferably, the tappet assembly includes a first tappet 13 and a second tappet 16 slidably engaged with the first tappet 13, the first tappet 13 and the second tappet 16 are slidably engaged, and a closed accommodating cavity is formed at the engagement position, a return spring 14 is disposed in the accommodating cavity, and two ends of the return spring 14 are respectively connected and fixed with the first tappet 13 and the second tappet 16, so that the first tappet 13 and the second tappet 16 form an elastic connection through the return spring 14.
In the embodiment of the present invention, preferably, the passage preferably includes an annular groove embedded in the periphery of the first tappet 13 and a duct penetrating one side of the cylinder body 15, and the annular groove is communicated with the accommodating chamber, so that the pressurizing mechanism and the pressure reducing mechanism can be communicated with the accommodating chamber through the duct and the annular groove.
In the embodiment of the present invention, preferably, an oil discharge port 18 is further disposed through one side of the cylinder 15 below the duct, so that when the pressure increasing mechanism is opened and the pressure reducing mechanism is closed, fluid injected into the accommodating chamber through the pressure increasing mechanism can flow out through the annular groove and the oil discharge port 18 when the first tappet 13 slides down to be opposite to the oil discharge port 18, thereby avoiding an excessive pressure in the accommodating chamber.
In the embodiment of the present invention, preferably, the lower end of the second tappet 16 is movably attached to the surface of the camshaft 17, and the upper end of the first tappet 13 is connected to the lift mechanism by welding, riveting or hinge connection.
In the embodiment of the present invention, preferably, the lift mechanism includes a push rod 12, an upper end of the push rod 12 is connected to the valve mechanism, and the push rod 12 can be driven by the first tappet 13 to open and close the valve mechanism.
As a preferred embodiment of the present invention, as shown in fig. 1, the pressurizing mechanism includes a pump assembly structure for injecting a fluid into the passage and a pressurization control structure for regulating the passage of the fluid.
The pressurization control structure includes a first control valve assembly for controlling the pumping arrangement to inject fluid into the passageway and a first one-way valve assembly for restricting backflow of fluid within the passageway to the pumping arrangement.
In the embodiment of the invention, preferably, the pump set structure can adopt an oil pump, the output end of the oil pump is communicated with the channel through a pipeline, and a pressurization control structure is further arranged on the pipeline at the output end of the oil pump.
In the embodiment of the present invention, preferably, the pressurization control structure includes a first electromagnetic valve 20 and a first check valve 21, the opening and closing of the first electromagnetic valve 20 can control the oil pump to deliver oil into the passage, and the first check valve 21 restricts the one-way communication formed from the oil pump to the passage, so as to prevent the oil in the accommodating chamber from flowing back into the pipeline at the output end of the oil pump.
In the embodiment of the present invention, it is preferable that the first check valve 21 is provided between the first solenoid valve 20 and the passage.
In the embodiment of the present invention, preferably, when the cylinder deactivation mechanism is in an inactive state, the first electromagnetic valve 20 is opened, the second electromagnetic valve 22 is closed, and at this time, the engine oil in the pump set structure enters the accommodating chamber through the first one-way valve 21 after being pressurized by the engine oil pump, so that the hydraulic pressure in the accommodating chamber is rapidly raised, because the second electromagnetic valve 22 is in a closed state, the engine oil can only enter the one-way path of the accommodating chamber through the pipe of the pump set structure, part of the engine oil in the accommodating chamber during operation will flow into the cavities of the second tappet 16 and the first tappet 13, and then flow out through the oil discharge port 18, so to ensure that sufficient pressure exists in the accommodating chamber to make the second tappet 16 and the camshaft 17 tightly adhere, the first electromagnetic valve 20 will always be opened, the second tappet 16 and the first tappet 13 perform upward synchronous movement along with the rotation of the camshaft 17, and the second tappet 16 is pushed by the elastic force of the valve mechanism when moving downward, the rotating motion of the camshaft 17 can be accurately converted into the reciprocating motion of the lift mechanism only by ensuring a certain hydraulic pressure in the accommodating cavity, and the cylinder engine is ensured to be in a normal working state.
As shown in fig. 1, as a preferred embodiment of the present invention, the pressure reducing mechanism includes a collecting structure and a pressure reducing control structure that regulates the passage of fluid from the passage into the collecting structure.
The reduced pressure control structure includes a second control valve assembly for controlling fluid flow from the passageway to the collection structure and a second one-way valve assembly for restricting fluid backflow from the collection structure into the passageway.
In the embodiment of the present invention, it is preferable that the collecting structure may adopt an oil pan 24, the oil pan 24 is communicated with the passage through a pipeline, and a pressure reduction control structure is further provided on the pipeline communicated with the oil pan 24.
In the embodiment of the invention, it is preferable that the pressure reduction control structure includes the second solenoid valve 22 for controlling communication of the oil pan 24 and the passage, and the second check valve 23 for restricting the direction of fluid flow from the passage to the oil pan 24, and the second check valve 23 is provided between the second solenoid valve 22 and the oil pan 24, so that backflow of the oil into the passage through the oil pan 24 can be avoided.
In the embodiment of the present invention, preferably, when in the working state, the valve mechanism is in the closed state, at which the first solenoid valve 20 is closed and the second solenoid valve 22 is opened, the oil in the pump set structure cannot enter the accommodating chamber, the second tappet 16 moves up and down along with the rotation of the camshaft 17, and the engine oil in the accommodating cavity is pressed into the oil pan 24 in the process of moving up, so that in order to prevent back suction, a second one-way valve 23 is added after the second solenoid valve 22, and also to prevent the oil contained therein from being pressed into the pump package structure, the first check valve 21 is arranged in front of the first electromagnetic valve 20, the engine oil in the accommodating cavity is squeezed into the oil pan 24, the oil pressure in the accommodating cavity is low, the second tappet 16 moves upwards while the first tappet 13 does not move, so that the valve mechanism does not work, thereby achieving the purpose of cylinder deactivation, and then the second tappet 16 is returned to the original state by the return spring 14 as the camshaft 17 rotates.
As shown in fig. 1, a hydraulically controlled variable valve device according to an embodiment of the present invention includes a valve mechanism, and further includes:
and the cylinder stopping mechanism is movably connected with the valve mechanism and used for driving the elastic containing mechanism and the lift mechanism to move through the driving mechanism and matching with the pressurizing mechanism and the pressure reducing mechanism to pressurize and reduce the pressure of the elastic containing mechanism.
In the embodiment of the invention, preferably, the valve mechanism comprises a rocker arm 3, the upper end of a push rod 12 of which is matched and connected through an adjusting screw 1 and an adjusting nut 2, and a valve 10, the end of which 9 is movably matched with a valve seat 19, the valve 10 is limited to be opened and closed through a valve guide rod 9, the rocker arm 3 is far away from one end of the push rod 12, the valve 10 is matched and opened and closed through the movable lifting of the valve guide rod 9, the valve seat 19 is arranged on a cylinder cover 11, a valve chamber cover 6 is further covered and arranged on the cylinder cover 11, a valve spring seat 5 is arranged on the periphery of the valve guide rod 9, which is close to the right side of the rocker arm 3, the valve spring seat 5 is assembled and fixed through a locking plate 4 and the valve guide rod 9, a valve main spring 7 and a valve auxiliary spring 8 are assembled and connected between the valve spring seat 5 and the cylinder cover 11, the valve guide rod 9 compresses the valve main spring 7 and, thereby ensuring that the second tappet 16 can be ensured to be closely attached to the camshaft 17.
In the embodiment of the present invention, preferably, the rocker arm 3 is rotatably connected to the cylinder head 11, and the valve guide 9 is slidably disposed on the cylinder head 11, and the lifting of the push rod 12 drives the rocker arm 3 to rotate, so that the end of the rocker arm 3 away from the push rod 12 descends when the push rod 12 is lifted, and the valve guide 9 moves downward.
In the embodiment of the present invention, preferably, when the cylinder deactivation mechanism is in an inactive state, the first electromagnetic valve 20 is opened, the second electromagnetic valve 22 is closed, and at this time, the engine oil in the pump set structure enters the accommodating chamber through the first one-way valve 21 after being pressurized by the engine oil pump, so that the hydraulic pressure in the accommodating chamber is rapidly raised, because the second electromagnetic valve 22 is in a closed state, the engine oil can only enter the one-way path of the accommodating chamber through the pipe of the pump set structure, part of the engine oil in the accommodating chamber during operation will flow into the hollow cavities of the second tappet 16 and the first tappet 13, and then flow out through the oil discharge port 18, so to ensure that sufficient pressure exists in the accommodating chamber to make the second tappet 16 and the camshaft 17 tightly adhere, the first electromagnetic valve 20 will always be opened, the second tappet 16 and the first tappet 13 perform upward synchronous movement along with the rotation of the camshaft 17, when the second tappet 16 goes downward, the engine oil is pushed by the elastic forces of the valve main spring 7 and the valve, the rotating motion of the camshaft 17 must be accurately converted to the reciprocating motion of the valve guide rod 9 by ensuring a certain hydraulic pressure in the accommodating cavity, so that the cylinder engine is ensured to be in a normal working state.
In the embodiment of the present invention, preferably, when the valve guide rod 9 and the cooperating valve seat 19 make the valve 10 in a closed state, when the first solenoid valve 20 is closed and the second solenoid valve 22 is opened, the oil in the pump set structure cannot enter the accommodating cavity, the second tappet 16 moves up and down along with the rotation of the camshaft 17, and the engine oil in the accommodating cavity is pressed into the oil pan 24 in the process of moving up, so that in order to prevent back suction, a second one-way valve 23 is added after the second solenoid valve 22, and also to prevent the oil contained therein from being pressed into the pump package structure, a first check valve 21 is arranged in front of the first electromagnetic valve 20, the engine oil in the accommodating cavity is squeezed into an oil pan 24, the oil pressure in the accommodating cavity is low, the second tappet 16 moves upwards while the first tappet 13 does not move, so that the valve guide rod 9 cannot be driven by the lifting of the push rod 12, thereby achieving the purpose of cylinder deactivation, and then the second tappet 16 is returned to the original state by the return spring 14 as the camshaft 17 rotates.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A cylinder deactivation mechanism includes a driving mechanism and a lift mechanism, and is characterized by further comprising:
the elastic containing mechanism is arranged on the lift mechanism and used for limiting the transmission of the driving mechanism to the lift mechanism through elastic expansion and contraction and providing a fluid containing space;
the output end of the pressurizing mechanism is communicated with the elastic accommodating mechanism and is used for injecting fluid into the elastic accommodating mechanism so that the elastic accommodating mechanism drives the lift mechanism to move up and down under the transmission of the driving mechanism; and
the input end of the pressure reducing mechanism is communicated with the elastic containing mechanism and is used for flowing and collecting the fluid in the elastic containing mechanism so as to enable the elastic containing mechanism to stop the transmission of the lift mechanism;
the output end of the pressurizing mechanism and the input end of the pressure reducing mechanism are communicated with the elastic containing mechanism through the same channel, and the pressurizing mechanism and the pressure reducing mechanism are staggered in opening and closing states.
2. The cylinder deactivation mechanism as claimed in claim 1, wherein the elastic accommodation mechanism includes a transmission accommodation structure and a movable structure for the transmission accommodation structure to operate, and the transmission accommodation structure is communicated with the pressurization mechanism and the depressurization mechanism through a passage provided on the movable structure.
3. The cylinder deactivation mechanism according to claim 2, wherein the transmission accommodating structure comprises a tappet assembly and an accommodating cavity, the tappet assembly is elastically connected and matched with the accommodating cavity, the accommodating cavity is formed by matching the tappet assembly, the size of the accommodating cavity is controlled by elastic matching of the tappet assembly, and the accommodating cavity is communicated with the channel on the movable structure.
4. The cylinder deactivation mechanism of claim 3 wherein said tappet assembly is fixedly connected to said lift mechanism at one end and movably urged against said drive mechanism at the other end.
5. The cylinder deactivation mechanism of claim 2 wherein said pressurization mechanism includes a pumping arrangement for injecting fluid into the passageway and a pressurization control arrangement for regulating the passage of fluid.
6. The cylinder deactivation mechanism of claim 5 wherein said pressurization control structure includes a first control valve assembly for controlling the pumping arrangement to inject fluid into the passageway and a first one-way valve assembly for restricting the flow of fluid back into the pumping arrangement.
7. The cylinder deactivation mechanism of claim 2 wherein said pressure relief mechanism includes a collection structure and a pressure relief control structure, said pressure relief control structure regulating fluid flow from the passage into the collection structure.
8. The cylinder deactivation mechanism of claim 7, wherein said pressure relief control structure includes a second control valve assembly for controlling fluid flow from the passage to the collection structure and a second one-way valve assembly for restricting fluid flow back into the passage in the collection structure.
9. A hydraulically controlled variable valve device including a valve mechanism, characterized by further comprising:
the cylinder deactivation mechanism as claimed in any one of claims 1 to 8, wherein the lift mechanism and the valve mechanism are movably connected to each other, and the lift mechanism and the valve mechanism are driven by the driving mechanism to move, and the pressurizing mechanism and the depressurizing mechanism are matched to pressurize and depressurize the elastic accommodating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103658.4A CN110656996A (en) | 2019-11-13 | 2019-11-13 | Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103658.4A CN110656996A (en) | 2019-11-13 | 2019-11-13 | Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN110656996A true CN110656996A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911103658.4A Pending CN110656996A (en) | 2019-11-13 | 2019-11-13 | Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism |
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| CN (1) | CN110656996A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2926327A1 (en) * | 1979-06-29 | 1981-01-29 | Volkswagenwerk Ag | Hydraulic valve gear for IC engine - has adjustable rotary valve controlling oil flow to vary inlet valve timing |
| CN206707788U (en) * | 2017-03-24 | 2017-12-05 | 潍柴动力股份有限公司 | Valve adjustments device, Fully variable valve train and engine |
| CN206737967U (en) * | 2016-12-21 | 2017-12-12 | 潍柴动力股份有限公司 | A kind of tappet, valve actuating mechanism and the engine of achievable cylinder deactivation function |
| CN210829426U (en) * | 2019-11-13 | 2020-06-23 | 吉林大学 | Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism |
-
2019
- 2019-11-13 CN CN201911103658.4A patent/CN110656996A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2926327A1 (en) * | 1979-06-29 | 1981-01-29 | Volkswagenwerk Ag | Hydraulic valve gear for IC engine - has adjustable rotary valve controlling oil flow to vary inlet valve timing |
| CN206737967U (en) * | 2016-12-21 | 2017-12-12 | 潍柴动力股份有限公司 | A kind of tappet, valve actuating mechanism and the engine of achievable cylinder deactivation function |
| CN206707788U (en) * | 2017-03-24 | 2017-12-05 | 潍柴动力股份有限公司 | Valve adjustments device, Fully variable valve train and engine |
| CN210829426U (en) * | 2019-11-13 | 2020-06-23 | 吉林大学 | Cylinder deactivation mechanism and hydraulic control variable valve device based on cylinder deactivation mechanism |
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