CN109139171B - Device capable of controlling engine valve to be closed - Google Patents
Device capable of controlling engine valve to be closed Download PDFInfo
- Publication number
- CN109139171B CN109139171B CN201710559868.9A CN201710559868A CN109139171B CN 109139171 B CN109139171 B CN 109139171B CN 201710559868 A CN201710559868 A CN 201710559868A CN 109139171 B CN109139171 B CN 109139171B
- Authority
- CN
- China
- Prior art keywords
- valve
- arm
- rocker
- rocker arm
- support plate
- 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
- 230000008093 supporting effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009849 deactivation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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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
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a device capable of controlling the closing of an engine valve, which consists of a rocker main arm, a rocker movable arm, a rocker spring, a guide rod, a pin shaft a, a pin shaft b, a main pin shaft, a valve support plate, an electromagnet support, a cushion block support and a control module. When the valve is required to be closed, the driving cushion block moves between the valve support plate and the cushion block support, the supporting force of the valve support plate exceeds the elasticity of the rocker arm spring, the rocker arm spring is compressed and deformed, and the rocker arm rotates clockwise around the main pin shaft relative to the rocker arm main arm to tilt, so that the valve can not be opened, and meanwhile, the mechanical parts are prevented from being damaged. When the valve is required to work normally, the cushion block is retracted from the valve support plate to the cushion block support plate, the cushion block does not obstruct the up-and-down movement of the valve and the valve support plate any more, and the valve can be opened normally.
Description
Technical Field
The present invention relates to a control device, in particular for controlling an engine valve in a closed state.
Background
The cylinder deactivation and fuel cut-off (variable displacement) are a technology capable of effectively realizing energy conservation and emission reduction of an engine. To achieve cylinder deactivation and fuel cut, it is necessary to cut off the fuel supply to some cylinders, and to cut off the valve control of the deactivated cylinders to bring the valve to a normally closed state. The difficulty of the technology is that the valve is in a normally closed state by cutting off the valve control of the stopped cylinder, and the existing valve control cutting device has complex structure and high cost.
Disclosure of Invention
Aiming at the problems of complex structure and high cost of the existing valve control cutting device, the device capable of cutting off the valve control of part of the cylinders according to the needs is provided, and the cylinder stopping and oil cutting technology is served.
The invention comprises a rocker main arm, a rocker movable arm, a rocker spring, a guide rod, a pin shaft a, a pin shaft b, a main pin shaft, a valve support plate, an electromagnet support, a cushion block support and a control module. The method is characterized in that: the rocker arm main arm is hinged with the rocker arm movable arm, one end of the guide rod is hinged on the rocker arm movable arm, the guide groove in the middle of the guide rod is sleeved on the pin shaft a, the pin shaft a is arranged on the pin hole a on the rocker arm main arm, the rocker arm spring is sleeved on the guide rod, the rocker arm spring is arranged between the rocker arm main arm and the rocker arm movable arm, a certain pretightening force is arranged after the rocker arm spring is arranged, the pretightening force is larger than the force required by opening a valve, the rocker arm movable arm is pressed on a valve support plate, the valve support plate is pressed on a valve, cushion block supports are respectively arranged on cylinder covers on the front side and the rear side of the valve, an electromagnet support is arranged on a cylinder cover on the left side of the valve, the electromagnet is arranged on the electromagnet support, and the electromagnet can drive the Y-shaped fork to move left and right.
When the tappet drives the rocker arm to rotate anticlockwise, the pretightening force of the rocker arm spring is larger than the opening force of the valve, the rocker arm and the rocker arm main arm do not rotate (or rotate by a small angle), the rocker arm can prop up the valve, and the valve works normally. When the valve is in a fully closed state, the valve support plate is propped to the highest position by the valve, the control module sends an instruction to enable the electromagnet to act, the Y-shaped fork is driven to drive the cushion block to move between the valve support plate and the cushion block support, the valve cannot be pressed down by the rocker arm due to the supporting action of the cushion block, the valve support plate and the cushion block support, the supporting force of the valve support plate exceeds the elasticity of the rocker arm spring in the pressing process of the rocker arm, the rocker arm spring is compressed and deformed, the rocker arm rotates clockwise around the main pin shaft relative to the rocker arm main arm to tilt, and therefore the valve cannot be opened, and meanwhile, the mechanical parts are prevented from being damaged. When the valve is required to work normally, the electromagnet is made to act reversely, the Y-shaped fork drives the cushion block to retract from the valve support plate and the cushion block support plate, the cushion block does not obstruct the up-and-down movement of the valve and the valve support plate any more, and the valve can be opened normally.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a schematic structural view of the rocker arm main arm.
Fig. 5 is a schematic structural view of a swing arm.
Fig. 6 is a schematic structural view of the guide rod.
Fig. 7 is a schematic diagram of the connection relationship among the rocker arm main arm, the rocker arm swing arm, the guide rod, and the rocker arm spring.
In the figure: 1, a cylinder cover; 2 lifters; 3a rocker arm main arm; a rocker shaft; 5 guiding a rod; 6, a pin shaft a; a rocker arm spring; 8, a rocker arm swing arm; 9 valve support plates; 10 electromagnets; 11 cushion blocks; 12 electromagnet support; 13 cushion block supports; 14 valve spring; 15 valves; 16 pin b;17 main pin shafts; 18Y-fork; 19 guiding grooves; a 20 pin hole a;21 rocker arm shaft holes; 22 main pin hole a;23 limiting blocks; 24 kingpin ring a;25 kingpin ring b;26 main pin holes b;27 hinge slots; 28 hinge holes a;29 guide grooves; 30 hinge holes b;31 a rocker arm seat; 32 a control module; 33 rocker arm spring clip groove a;34 rocker arm spring catch b.
Detailed Description
The invention comprises a rocker main arm, a rocker movable arm, a rocker spring, a guide rod, a pin shaft a, a pin shaft b, a main pin shaft, a valve support plate, an electromagnet support, a cushion block support and a control module.
In fig. 1, a rocker arm main arm 3 and a rocker arm movable arm 8 are hinged together through a main pin shaft 17, the rocker arm main arm 3 is mounted on a rocker arm seat 31, one end of a guide rod 5 is hinged on the rocker arm movable arm 8, a guide groove 19 in the middle of the guide rod 5 is sleeved on a pin shaft a6, the pin shaft a6 is mounted on a pin hole a20 on the rocker arm main arm 3, a rocker arm spring 7 is sleeved on the guide rod 5, and the rocker arm spring 7 is mounted between the rocker arm main arm 3 and the rocker arm movable arm 8. The rocker arm 8 is pressed on the valve support plate 9, the valve support plate 9 is pressed on the valve 15, a cushion block support 13 is respectively arranged on the cylinder cover 1 at the front side and the rear side of the valve 15, an electromagnet support 12 is arranged on the cylinder cover 1 at the left side of the valve 15, an electromagnet 10 is arranged on the electromagnet support 12, the electromagnet 10 can drive a Y-shaped fork 18 to move left and right, a cushion block 11 is arranged at the end part of the Y-shaped fork 18, and the action of the electromagnet 10 is controlled by a control module 32.
In fig. 2, two pad supports 13 are respectively arranged on the front side and the rear side of the rocker arm 3, an electromagnet support 12 is arranged on the left side of the rocker arm main arm 3, an electromagnet 10 is arranged on the electromagnet support 12, the electromagnet 10 can drive a Y-shaped fork 18 to move left and right, and a pad 11 is arranged at the end part of the Y-shaped fork 18.
In fig. 3, the rocker arm 8 is pressed on the valve support plate 9, the valve support plate 9 is pressed on the valve 15, the cushion block 11 can be moved between the valve support plate 9 and the cushion block support 13, and the valve 15 cannot be pressed down by the rocker arm 8 due to the supporting actions of the cushion block 11, the valve support plate 9 and the cushion block support 13, so that the valve 15 cannot be opened.
In fig. 4, a guiding groove 19 is provided at one end of a main arm 3 of the rocker arm, pin holes a20 are provided at both sides of the guiding groove 19, a rocker arm spring clamping groove a33 is provided below the pin holes a20, a main pin ring a24 is provided at the lower part of the main arm 3 of the rocker arm, a main pin hole a22 is provided at the middle part of the main pin ring a24, and a stopper 23 is provided at the lower part of the main pin ring a 24.
In fig. 5, one end of the swing arm 8 is a main pin ring b25, the middle part of the main pin ring b25 is a main pin hole b26, the other end of the swing arm 8 is provided with a hinge groove 27, two sides of the hinge groove 27 are provided with hinge holes a28, and a swing arm spring clamping groove b34 is arranged above the hinge holes a 28.
In fig. 6, the guide bar 5 has a guide groove 29 in the middle, and one end of the guide bar 5 has a hinge hole b30.
In fig. 7, the main arm 3 and the movable arm 8 are hinged together by a main pin 17, a pin b16 articulates a hinge hole b30 of the guide rod 5 and a hinge hole a 28 of the movable arm 8 together, a guide groove 19 in the middle of the guide rod 5 is sleeved on a pin a6, the pin a6 is mounted on a pin hole a20 of the main arm 3, a rocker spring 7 is sleeved on the guide rod 5, the rocker spring 7 is mounted between the main arm 3 and the movable arm 8, and the rocker spring 7 is respectively clamped on a rocker spring clamping groove a33 and a rocker spring clamping groove b 34.
The limiting block 23 on the rocker arm main arm 3 can block the rocker arm 8 from rotating downwards relative to the rocker arm main arm 3, and when the arm spring 7 is installed between the rocker arm main arm 3 and the rocker arm 8, the rocker arm spring 7 can be compressed to generate pretightening force due to the blocking of the limiting block 23. The preload of the rocker spring 7 is greater than the force required to open the valve 15. When the cylinder works normally, the tappet rod 2 jacks up one end of the rocker arm main arm 3, the rocker arm main arm 3 rotates around the rocker arm shaft 4, the other end of the rocker arm main arm 3 is pressed down, and the rocker arm 8 and the rocker arm main arm 3 do not rotate (or rotate by a small angle) because the pretightening force of the rocker arm spring 7 is larger than the opening force of the valve 15, the rocker arm 8 can jack up the valve 15, and the valve 15 works normally. When the control of the valve needs to be cut off, when the valve 15 runs to a fully closed state, the valve support plate 9 is propped to the highest position by the valve 15, the control module 32 sends an instruction to enable the electromagnet 10 to act, the Y-shaped fork 18 is driven to drive the cushion block 11 to move between the valve support plate 9 and the cushion block support 13, the valve 15 cannot be pressed down by the rocker arm 8 due to the supporting action of the cushion block 11, the valve support plate 9 and the cushion block support 13, the supporting force of the valve support plate 9 exceeds the elastic force of the rocker arm spring 7 in the pressing process of the rocker arm 8, the rocker arm spring 7 is compressively deformed, and the rocker arm 8 rotates around the main pin shaft 17 to lift up, so that the valve 15 cannot be opened, and meanwhile, the mechanical parts are not damaged. When the valve 15 is required to work normally, the control module 32 enables the electromagnet 10 to act reversely, the Y-shaped fork 18 drives the cushion block 11 to retract from between the valve support plate 9 and the cushion block support 13, the cushion block 11 does not block the valve 15 and the valve support plate 9 to move up and down, and the valve 15 can be opened normally. The rocker spring engagement groove a33 and the rocker spring engagement groove b34 are for restricting the movement of the rocker spring 7 relative to the rocker main arm 3 and the rocker arm 8, and the guide lever 5 functions to prevent the rocker spring 7 from coming off from between the rocker main arm 3 and the rocker arm 8.
Claims (1)
1. A device capable of controlling engine valve to be closed comprises a rocker main arm, a rocker movable arm, a rocker spring, a guide rod, a pin shaft a, a pin shaft b, a main pin shaft, a valve support plate, an electromagnet support, a cushion block support and a control module, and is characterized in that: the rocker arm main arm is hinged with the rocker arm movable arm, one end of the guide rod is hinged on the rocker arm movable arm, the guide groove in the middle of the guide rod is sleeved on the pin shaft a, the pin shaft a is arranged on the pin hole a on the rocker arm main arm, the rocker arm spring is sleeved on the guide rod, the rocker arm spring is arranged between the rocker arm main arm and the rocker arm movable arm, a certain pretightening force is arranged after the rocker arm spring is arranged, the pretightening force is larger than the force required by opening a valve, the rocker arm movable arm is pressed on a valve support plate, the valve support plate is pressed on a valve, cushion block supports are respectively arranged on cylinder covers on the front side and the rear side of the valve, an electromagnet support is arranged on a cylinder cover on the left side of the valve, the electromagnet is arranged on the electromagnet support, and the electromagnet can drive the Y-shaped fork to move left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559868.9A CN109139171B (en) | 2017-06-28 | 2017-06-28 | Device capable of controlling engine valve to be closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559868.9A CN109139171B (en) | 2017-06-28 | 2017-06-28 | Device capable of controlling engine valve to be closed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139171A CN109139171A (en) | 2019-01-04 |
| CN109139171B true CN109139171B (en) | 2024-05-24 |
Family
ID=64803230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710559868.9A Active CN109139171B (en) | 2017-06-28 | 2017-06-28 | Device capable of controlling engine valve to be closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139171B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544628A (en) * | 1994-07-06 | 1996-08-13 | Volkswagen Ag | Valve control arrangement for an internal combustion engine |
| CN201924978U (en) * | 2010-12-21 | 2011-08-10 | 上海尤顺汽车部件有限公司 | Combined rocker arm device used for generating auxiliary air valve movement of engine |
| CN102562214A (en) * | 2010-12-21 | 2012-07-11 | 上海尤顺汽车部件有限公司 | Compound rocker arm device used for producing auxiliary valve movement of engine |
| CN103244233A (en) * | 2012-11-06 | 2013-08-14 | 牛刚学 | Internal combustion engine decompressor with inserted cushion |
| CN206903711U (en) * | 2017-06-28 | 2018-01-19 | 黄河水利职业技术学院 | A kind of device that can control engine throttled back |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009002234A1 (en) * | 2007-06-26 | 2008-12-31 | Volvo Lastvagnar Ab | Exhaust valve mechanism for an internal combustion engine |
| CN102588030B (en) * | 2011-01-05 | 2016-08-10 | 上海尤顺汽车部件有限公司 | The auxiliary valve driving mechanism of electromotor |
| DE102013215946A1 (en) * | 2013-08-12 | 2015-02-12 | Avl List Gmbh | Valve operating device for changing the valve lift |
-
2017
- 2017-06-28 CN CN201710559868.9A patent/CN109139171B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544628A (en) * | 1994-07-06 | 1996-08-13 | Volkswagen Ag | Valve control arrangement for an internal combustion engine |
| CN201924978U (en) * | 2010-12-21 | 2011-08-10 | 上海尤顺汽车部件有限公司 | Combined rocker arm device used for generating auxiliary air valve movement of engine |
| CN102562214A (en) * | 2010-12-21 | 2012-07-11 | 上海尤顺汽车部件有限公司 | Compound rocker arm device used for producing auxiliary valve movement of engine |
| CN103244233A (en) * | 2012-11-06 | 2013-08-14 | 牛刚学 | Internal combustion engine decompressor with inserted cushion |
| CN206903711U (en) * | 2017-06-28 | 2018-01-19 | 黄河水利职业技术学院 | A kind of device that can control engine throttled back |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109139171A (en) | 2019-01-04 |
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