CN109026257A - A kind of variable lift reed valve device - Google Patents
A kind of variable lift reed valve device Download PDFInfo
- Publication number
- CN109026257A CN109026257A CN201811086233.2A CN201811086233A CN109026257A CN 109026257 A CN109026257 A CN 109026257A CN 201811086233 A CN201811086233 A CN 201811086233A CN 109026257 A CN109026257 A CN 109026257A
- Authority
- CN
- China
- Prior art keywords
- valve
- stop baffle
- hole
- valve seat
- variable lift
- 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.)
- Pending
Links
- 235000014676 Phragmites communis Nutrition 0.000 title claims abstract description 15
- 230000001154 acute effect Effects 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 6
- 230000037452 priming Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002000 scavenging effect Effects 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
- F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
- F01L15/02—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00 with valves other than cylindrical, sleeve, or part-annularly-shaped, e.g. flat D-valves
-
- 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
- F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
- F01L15/20—Component parts, details, or accessories, not provided for in preceding subgroups of this main group
-
- 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
- F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
- F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
- F01L31/18—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear specially for rotary or oscillatory valves
Abstract
The invention discloses a kind of variable lift reed valve devices characterized by comprising the valve seat equipped with valve opening；It is mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block is equipped with free end and the fixing end fixed with the valve seat；Be rotatably connected on the stop baffle on the valve seat by being rotatablely connected end, the fixing end and the rotation connection end are located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.Stop baffle is arranged in the present invention, valve block is because valve seat inside and outside differential pressure is opened, unlatching can limit priming line-spacing because of the position of stop baffle every time for it, because the angle between stop baffle and valve block is adjustable, therefore pass through the position of adjusting stop baffle, so that lift of valve plate is adjustable, solve the problems, such as to encounter in the prior art.
Description
Technical field
The present invention relates to a kind of variable lift reed valve devices.
Background technique
Two-stroke piston engine is abutted due to the intake and exhaust cylinder cap system without four reciprocating piston engine complexity
Traditional dislocation crankcase air inlet scavenging mechanism, which is be easy to cause in crankcase at high speed, mixes gas time deficiency.Air intake duct reed
Valve realizes the air mixing process of a circulation in advance using air intake duct with the pressure difference variation of crankcase in a duty cycle, provides abundance
The mixed gas time, promote engine performance.But the reed lift of a valve depends primarily on inside and outside differential pressure size and determines stop catch at this stage
Plate opening angle determines the presence limitation leaf valve priming line-spacing of stop baffle, influences gas quantity in different operating condition lower crankcases, increase
The hysteresis under engine variable working condition is added.
With the development of two-stroke piston engine technology, engine the response under variable working condition is required it is higher and higher, because
This, the technical method for needing one kind new is to solve the above problems.
Summary of the invention
The object of the present invention is to provide one kind to adjust the device that valve block opens lift according to corresponding demand.
To solve the above problems, the present invention provides a kind of variable lift reed valve devices characterized by comprising
Valve seat equipped with valve opening；
Be mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block be equipped with free end and with institute
State the fixed fixing end of valve seat；
The stop baffle on the valve seat, the fixing end and the rotation connection are rotatably connected on by being rotatablely connected end
End is located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.
As a further improvement of the present invention, further includes:
It is slidably connected on the valve seat, and can be along the adjustment slided with the straight path of the valve opening axis parallel
Slide bar；
The crank being rotatably connected on the adjustment litter free end, the other end of the crank are rotatably connected on described stop
The middle position of dynamic baffle.
It as a further improvement of the present invention, further include the through-hole on the valve seat, the axis of the through-hole and institute
The axis for stating valve opening is parallel, and the adjustment slide bar slides in the through-hole.
It as a further improvement of the present invention, is frictional fit, the friction between the adjustment litter and the through-hole
Cooperation are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter can slide in the through-hole.
As a further improvement of the present invention, it is provided with damping sleeve in the through-hole, which is used for and the adjustment
Litter contact, between with being combined into frictional fit, the frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter can slide in the through-hole.
As a further improvement of the present invention, the fixing end of the valve block is bolted on the valve seat.
As a further improvement of the present invention, the rotation connection end on the stop baffle is rotatably connected on institute by hinge
It states on valve seat.
As a further improvement of the present invention, the stop baffle have enough areas make the valve plate movement to institute
State stop baffle contact when, between keep completely fitting.
The beneficial effects of the present invention are stop baffle is arranged in the present invention, and valve block is every because valve seat inside and outside differential pressure is opened
Secondary unlatching can limit priming line-spacing because of the position of stop baffle, because the angle between stop baffle and valve block is adjustable, because
This solves the problems, such as to encounter in the prior art by the position of adjusting stop baffle so that lift of valve plate is adjustable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Wherein: 1- valve opening；2- valve seat；3- valve block；4- stop baffle；5- adjusts litter；6- crank；7- through-hole；8- bolt.
Specific embodiment
A specific embodiment of the invention is described in further detail below.
As shown in Figure 1, the present invention includes:
Valve seat equipped with valve opening；
Be mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block be equipped with free end and with institute
State the fixed fixing end of valve seat；
The stop baffle on the valve seat, the fixing end and the rotation connection are rotatably connected on by being rotatablely connected end
End is located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.
As a further improvement of the present invention, further includes:
It is slidably connected on the valve seat, and can be along the adjustment slided with the straight path of the valve opening axis parallel
Slide bar；
The crank being rotatably connected on the adjustment litter free end, the other end of the crank are rotatably connected on described stop
The middle position of dynamic baffle.
It as a further improvement of the present invention, further include the through-hole on the valve seat, the axis of the through-hole and institute
The axis for stating valve opening is parallel, and the adjustment slide bar slides in the through-hole.
It as a further improvement of the present invention, is frictional fit, the friction between the adjustment litter and the through-hole
Cooperation are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter can slide in the through-hole.
As a further improvement of the present invention, it is provided with damping sleeve in the through-hole, which is used for and the adjustment
Litter contact, between with being combined into frictional fit, the frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter can slide in the through-hole.
As a further improvement of the present invention, the fixing end of the valve block is bolted on the valve seat.
As a further improvement of the present invention, the rotation connection end on the stop baffle is rotatably connected on institute by hinge
It states on valve seat.
As a further improvement of the present invention, the stop baffle have enough areas make the valve plate movement to institute
State stop baffle contact when, between keep completely fitting.
Specific implementation step of the invention is as follows:
(1) valve block uses Carbon fibe material, and free end rides on the edge outer wall of valve opening, and fixing end is fixed on valve seat
On, under the action of valve seat inside and outside differential pressure, valve block is opened around fixing end；
(2) stop baffle, the valve block setting at an acute angle under stop baffle and tranquility are set, and the effect of stop baffle is
After limitation valve block is contacted with stop baffle, valve block continues to move, that is, limits the priming line-spacing of valve block；
(3) angle between stop baffle and valve block is adjustable, specifically, is arranged through-hole on valve seat, in through-hole
Equipped with that can adjust in axial sliding litter along it, the free end for adjusting litter is rotatably connected to crank, and the other end of crank turns
The dynamic middle position for being connected to stop baffle, middle position here are not the geometric center for referring to stop baffle, should
Including the other positions other than stop catch board ends portion；
(4) litter is adjusted in through-holes, the fit system with through-hole is frictional fit, that is to say, that at work, adjust
After the position restriction of litter in through-holes, the effect without other external force will not occur position movement, but pass through manpower or behaviour
It is position of the adjustable adjusting litter in through-hole, certainly, this frictional fit should not when author is by other external force
It is confined to through-hole and directly contacts generation with litter is adjusted, be also possible to fix damping sleeve in through-holes, adjust litter and be inserted in resistance
It is above-mentioned so-called frictional fit between damping sleeve in Buddhist nun's set.
(5) valve seat uses heat resistant epoxide resin material ejection formation, and stop baffle is formed using aluminum alloy forged.Make its symbol
Close corresponding operating condition.
Above embodiments are only the one such embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of variable lift reed valve device characterized by comprising
Valve seat (2) equipped with valve opening (1)；
It is mounted on the valve seat (2), and the valve block (3) of the valve opening (1) can be covered, the valve block (3) has free end
And the fixing end fixed with the valve seat (2)；
It is rotatably connected on the stop baffle (4) on the valve seat (2) by being rotatablely connected end, the fixing end and the rotation connect
Connect the same side that end is located at the valve opening (1), the stop baffle (4) and the valve block (3) setting at an acute angle, and between angle
It spends adjustable.
2. a kind of variable lift reed valve device according to claim 1, which is characterized in that further include:
It is slidably connected on the valve seat (2), and can be along the tune slided with the straight path of the valve opening (1) axis parallel
Whole slide bar (5)；
The crank (6) being rotatably connected on described adjustment litter (5) free end, the other end of the crank (6) are rotatably connected on
The middle position of the stop baffle (4).
3. a kind of variable lift reed valve device according to claim 2, which is characterized in that further include being located at the valve seat
(2) axis of the through-hole (7) on, the through-hole (7) is parallel with the axis of the valve opening (1), and the adjustment slide bar (5) is described
Sliding in through-hole (7).
4. a kind of variable lift reed valve device according to claim 3, which is characterized in that the adjustment litter (5) and
It is frictional fit, the frictional fit between the through-hole (7) are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of adjustment slide bar (5) between the through-hole (7) inner wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter (5) can the sliding in the through-hole (7).
5. a kind of variable lift reed valve device according to claim 4, which is characterized in that setting in the through-hole (7)
Have damping sleeve, the damping sleeve for being contacted with the adjustment litter (5), between match and be combined into frictional fit, the friction is matched
It is combined into:
Under running conditions, it is relatively sliding can to limit it for frictional force of adjustment slide bar (5) between the through-hole (7) inner wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment litter (5) can the sliding in the through-hole (7).
6. a kind of variable lift reed valve device according to claim 4 or 5, which is characterized in that the valve block (3)
Fixing end is fixed on the valve seat (2) by bolt (8).
7. a kind of variable lift reed valve device according to claim 6, which is characterized in that on the stop baffle (4)
Rotation connection end be rotatably connected on the valve seat (2) by hinge.
8. a kind of variable lift reed valve device according to claim 7, which is characterized in that stop baffle (4) tool
Have enough areas make the valve block (3) move to the stop baffle (4) contact when, between keep completely fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086233.2A CN109026257A (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086233.2A CN109026257A (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109026257A true CN109026257A (en) | 2018-12-18 |
Family
ID=64616932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086233.2A Pending CN109026257A (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131137A (en) * | 2019-05-28 | 2019-08-16 | 珠海凌达压缩机有限公司 | A kind of baffle, valve member, compressor and air-conditioning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1020633A1 (en) * | 1998-07-07 | 2000-07-19 | Man Nutzfahrzeuge Ag | One way valve for exhaust gas recirculation |
| JP2000249242A (en) * | 1999-03-03 | 2000-09-12 | Isuzu Motors Ltd | Egr device equipped with reed valve |
| JP2009138534A (en) * | 2007-12-03 | 2009-06-25 | Yamaha Motor Co Ltd | Reed valve device, internal combustion engine and vehicle |
| CN201618652U (en) * | 2010-01-20 | 2010-11-03 | 厦门松霖科技有限公司 | Clamp sliding seat and lifting mechanism |
| CN201892815U (en) * | 2010-10-22 | 2011-07-06 | 崔定楠 | Ground lifting projection screen |
| CN208918615U (en) * | 2018-09-18 | 2019-05-31 | 江苏心源航空科技有限公司 | A kind of variable lift reed valve device |
-
2018
- 2018-09-18 CN CN201811086233.2A patent/CN109026257A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1020633A1 (en) * | 1998-07-07 | 2000-07-19 | Man Nutzfahrzeuge Ag | One way valve for exhaust gas recirculation |
| JP2000249242A (en) * | 1999-03-03 | 2000-09-12 | Isuzu Motors Ltd | Egr device equipped with reed valve |
| JP2009138534A (en) * | 2007-12-03 | 2009-06-25 | Yamaha Motor Co Ltd | Reed valve device, internal combustion engine and vehicle |
| CN201618652U (en) * | 2010-01-20 | 2010-11-03 | 厦门松霖科技有限公司 | Clamp sliding seat and lifting mechanism |
| CN201892815U (en) * | 2010-10-22 | 2011-07-06 | 崔定楠 | Ground lifting projection screen |
| CN208918615U (en) * | 2018-09-18 | 2019-05-31 | 江苏心源航空科技有限公司 | A kind of variable lift reed valve device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131137A (en) * | 2019-05-28 | 2019-08-16 | 珠海凌达压缩机有限公司 | A kind of baffle, valve member, compressor and air-conditioning |
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