CN108286464A - A kind of variable exhaust phase device and engine - Google Patents
A kind of variable exhaust phase device and engine Download PDFInfo
- Publication number
- CN108286464A CN108286464A CN201810267355.5A CN201810267355A CN108286464A CN 108286464 A CN108286464 A CN 108286464A CN 201810267355 A CN201810267355 A CN 201810267355A CN 108286464 A CN108286464 A CN 108286464A
- Authority
- CN
- China
- Prior art keywords
- exhaust phase
- engine
- valve rod
- control valve
- variable exhaust
- 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
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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
- F01L1/38—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
-
- 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
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
- F01L2013/11—Sensors for variable valve timing
Abstract
The present invention relates to technical field of engines, it is intended to which the performance for improving two stroke engine in the prior art optimizes incomplete problem, provides a kind of variable exhaust phase device and engine.Variable exhaust phase device provided by the invention includes testing agency, control mechanism and gas exhausting valve.The engine condition signal detected is sent to control mechanism by testing agency, and operation is identified to the information of acquisition in control mechanism, and controls gas exhausting valve movement, and the exhaust phase of engine is adjusted to best angle.Variable exhaust phase device can be adjusted exhaust phase according to the operating condition of engine, make engine be under best exhaust phase always to work, the performance of engine is set to be in optimum state, to achieve the purpose that while improve two stroke engine low speed, middling speed and high speed performance.
Description
Technical field
The present invention relates to technical field of engines, in particular to a kind of variable exhaust phase device and engine.
Background technology
Two stroke engine is due to having the advantages that simple in structure, dynamic property is strong, quilt more light compared with four-stroke engine
It is widely used.
The existing result that performance optimization is carried out to two stroke engine is more single, such as the two-stroke hair that motor is automobile-used
Motivation is fluctuated by improving crankcase compression ratio (crankcase air inlet), using asymmetric air inlet (reed valve type) or using air inlet
Effect etc. further promotes engine performance to improve the volumetric efficiency of engine.However these modes are to low speed in engine
Promotion with high speed performance can not take into account, and when high speed performance gets a promotion, the economy and stability of middle low speed are poor.
Invention content
It is an object of the present invention to provide a kind of variable exhaust phase devices, are sent out with improving two-stroke in the prior art
The performance of motivation optimizes incomplete problem.
It is another object of the present invention to provide a kind of engines, have above-mentioned variable exhaust phase device.
What the embodiment of the present invention was realized in：
A kind of variable exhaust phase device, is applied to two stroke engine, and variable exhaust phase device includes：Detection machine
Structure, testing agency is for detecting engine operating condition；The control mechanism being electrically connected with testing agency；And it is electrically connected with control mechanism
Gas exhausting valve, the cylinder block of gas exhausting valve and engine is movably connected；The activity of gas exhausting valve is for adjusting
The exhaust phase of engine.
In one embodiment of the invention：
Above-mentioned testing agency is velocity sensor, and velocity sensor is used to detect the rotating speed of engine crankshaft.
In one embodiment of the invention：
Above-mentioned gas exhausting valve includes control valve rod and driving mechanism；The exhaust ports in cylinder block are arranged in control valve rod,
And it is rotatably coupled with cylinder block；Driving mechanism is electrically connected with control mechanism；Driving mechanism is rotated for drive control valve rod.
In one embodiment of the invention：
Above-mentioned gas exhausting valve further includes sealed valve cap；One far from driving mechanism in control valve rod is arranged in sealed valve cap
End, and be rotatably coupled with control valve rod.
In one embodiment of the invention：
Above-mentioned driving mechanism includes driving motor and switch zipper mechanism, and driving motor drives with switch zipper mechanism to be connected
It connects；Switch zipper mechanism is fixedly connected with control valve rod, and driving motor is electrically connected with control mechanism.
In one embodiment of the invention：
Above-mentioned switch zipper mechanism includes zipper and switch member；Zipper is connect with driving motor, for driving switch member to turn
It is dynamic；Switch member is fixedly connected with control valve rod, for driving control valve rod rotation.
In one embodiment of the invention：
Above-mentioned switch zipper mechanism further includes switch protecgulum and opening and closing tailgate, and switch protecgulum is fixedly connected with opening and closing tailgate,
Form the accommodating chamber for accommodating switch member；Switch protecgulum is fixedly connected with cylinder block.
In one embodiment of the invention：
Compression spring is provided between above-mentioned sealed valve cap and control valve rod, the axis of compression spring is parallel with the control axis of valve rod.
In one embodiment of the invention：
It is provided with bushing between above-mentioned control valve rod and cylinder block.
A kind of engine, including any one of the above variable exhaust phase device.
The advantageous effect of the embodiment of the present invention is：
Variable exhaust phase device provided in an embodiment of the present invention comprising testing agency, control mechanism and gas exhaust inspecting
Valve.Testing agency is for detecting engine operating condition；Control mechanism is electrically connected with testing agency；Gas exhausting valve and control mechanism electricity
Connection, gas exhausting valve are movably connected with engine cylinder block, and the activity of gas exhausting valve is used to adjust the row of engine
Gas phase.In use, testing agency is by the data signal transmission to control mechanism of the engine operating condition detected, control mechanism
Operation then is identified to data-signal, and controls gas exhausting valve activity, the exhaust phase of engine is adjusted in real time, makes to start
Machine is under arbitrary operating mode when working, and exhaust phase is in the best angle with the Conditions Matching, to reduce fuel consumption
Rate reduces scavenging loss, improves engine emission performance.
Engine provided in an embodiment of the present invention, including above-mentioned variable exhaust phase device, therefore also disappear with fuel oil
The advantageous effect that consumption rate is low, scavenging loss is small, emission performance is good.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic diagram for the variable exhaust phase device that the embodiment of the present invention 1 provides；
Fig. 2 is that gas exhausting valve is assemblied in cylinder block in the variable exhaust phase device that the embodiment of the present invention 1 provides
Structural schematic diagram；
Fig. 3 is the cross-sectional view at III-III place in Fig. 2；
Fig. 4 is the Structure explosion diagram of gas exhausting valve in the variable exhaust phase device that the embodiment of the present invention 1 provides；
When Fig. 5 is that control valve rod is in the second predeterminated position in the variable exhaust phase device that the embodiment of the present invention 1 provides
Diagrammatic cross-section；
When Fig. 6 is that control valve rod is in the first predeterminated position in the variable exhaust phase device that the embodiment of the present invention 1 provides
Diagrammatic cross-section；
Fig. 7 is the partial enlarged view at VII in Fig. 3.
Icon：010- variable exhaust phase devices；100- testing agencies；200- control mechanisms；300- gas exhausting valves；
310- controls valve rod；311- grooves；312- mounting grooves；320- switchs zipper mechanism；321- zippers；322- switch members；323- is opened
Close protecgulum；324- opening and closing tailgates；325- accommodating chambers；330- sealed valve caps；The first sealing rings of 331-；The first copper bush of 332-；
341- compression springs；342- spring conductor rods；351- bushings；The second sealing rings of 352-；The second copper bush of 353-；361- oil sealings；400-
Clutch lacing wire positioning plate；020- cylinder block；021- mounting holes；022- cylinders；023- exhaust outlets.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the embodiment of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
Embodiment 1
Fig. 1 be variable exhaust phase device 010 provided in this embodiment schematic diagram, Fig. 2 be it is provided in this embodiment can
Become gas exhausting valve 300 in exhaust phase device 010 and be assemblied in the structural schematic diagram in cylinder block 020, Fig. 3 is III-III in Fig. 2
The cross-sectional view at place.Incorporated by reference to referring to FIG. 1, FIG. 2 and FIG. 3, present embodiments providing a kind of variable exhaust phase device
010 comprising testing agency 100, control mechanism 200 and gas exhausting valve 300.Testing agency 100 is for detecting engine work
Condition；Control mechanism 200 is electrically connected with testing agency 100；Gas exhausting valve 300 is electrically connected with control mechanism 200.In use, inspection
Mechanism 100 is surveyed by the data signal transmission of the engine operating condition detected to control mechanism 200, the then logarithm of control mechanism 200
It is believed that number operation is identified, and 300 activity of gas exhausting valve is controlled, adjusts the exhaust phase of engine in real time, make engine
When working under arbitrary operating mode, exhaust phase is in the best angle to match with the operating mode.
Variable exhaust phase device 010 provided in this embodiment is further described below：
In the present embodiment, testing agency 100 is velocity sensor.In use, velocity sensor setting is in engine song
On axis, for detecting speed of crankshaft.It, can be with it should be noted that do not limit here the detection mode of testing agency 100
Understand, in other specific embodiments, other modes can also be selected to detect engine operating condition, example according to the demand of user
Such as detect throttle opening, detection air inflow.
In the present embodiment, control mechanism 200 is electronic control unit commonly used in the prior art (ECU).Control mechanism
Relevant parameter containing engine speed Yu the variation relation of best exhaust phase in 200, the hair that testing agency 100 will detect
Motivation tach signal is transferred in control mechanism 200, and operation is identified to the tach signal of reception in control mechanism 200, obtains
The best exhaust phase of engine under current working, and control actual exhaust air phase adjustment of the gas exhausting valve 300 by engine
To the best exhaust phase.It should be understood that in other specific embodiments, it can also according to the demand of user, selection is started
The controller that machine itself has is as control mechanism 200.
Fig. 4 is the Structure explosion diagram of gas exhausting valve 300 in variable exhaust phase device 010 provided in this embodiment.Please
In conjunction with reference to Fig. 3 and Fig. 4, in the present embodiment, gas exhausting valve 300 includes control valve rod 310 and driving mechanism.Driving mechanism
It is electrically connected with control mechanism 200, driving mechanism is drivingly connected with control valve rod 310.In cylinder block 020 at exhaust outlet 023
It is provided with the mounting hole 021 of perforation cylinder block 020, control valve rod 310 is arranged in mounting hole 021, when control valve rod 310 rotates
The top of exhaust outlet 023 can be blocked (as shown in Figure 5) to when the second predeterminated position.It is provided with and arranges on control valve rod 310
The groove 311 that 023 upper dimension shape of gas port matches, when control valve rod 310 turns to the first predeterminated position, groove 311
Setting make exhaust outlet 023 completely open wide (as shown in Figure 6)；When control valve rod 310 rotates clockwise, valve rod 310 is controlled
Gradually portion discharge mouth 023 is blocked, exhaust outlet 023 highly reduces, and piston moves downward arrives exhaust outlet 023 and cylinder 022
The height of connection reduces, and exhaust phase is postponed；When control valve rod 310 turns to the second predeterminated position, control valve rod 310 will be arranged
The top of gas port 023 is blocked, and the exhaust phase of engine postpones till maximum angle (as shown in Figure 5) at this time.
In the present embodiment, gas exhausting valve 300 further includes sealed valve cap 330,330 company of being bolted of sealed valve cap
It is connected in cylinder block 020.Sealed valve cap 330 is arranged in the one end of control valve rod 310 far from driving mechanism, sealing cover and cylinder block
It is provided with the first sealing ring 331 between 020, the one end for controlling valve rod 310 is sealed by the way that sealed valve cap 330 is arranged, is prevented
During use, the exhaust gas in cylinder 022 is revealed from this.
Further, the first copper bush 332, the first copper bush are provided between sealed valve cap 330 and control valve rod 310
332 are set on control valve rod 310.Since control valve rod 310 is rotatably coupled with sealed valve cap 330, in sealed valve cap 330
First copper bush 332 is set between control valve rod 310, abrasion can be reduced, reduce cost.
Continuing with combining with reference to Fig. 3 and Fig. 4, in the present embodiment, driving mechanism include servo motor (not shown) and
Zipper mechanism 320 is switched, servo motor is electrically connected with control mechanism 200, servo motor and 320 company of driving of switch zipper mechanism
It connects.Specifically, switch zipper mechanism 320 includes zipper 321, switch member 322, switch protecgulum 323 and opening and closing tailgate 324.Zipper
321 around being located in switch member 322, and zipper 321 is connect with servo motor, in use, servo motor pulls zipper 321, and band
Dynamic switch member 322 rotates.Switch protecgulum 323 is bolted to connection in cylinder block 020, and opening and closing tailgate 324 passes through bolt
It is fixedly connected on switch protecgulum 323, switch protecgulum 323 is together formed with opening and closing tailgate 324 for accommodating switch member 322
Accommodating chamber 325.Switch member 322 is arranged in accommodating chamber 325, and control valve rod 310, which passes through to switch protecgulum 323 and fix with quick closing valve part, to be connected
It connects, switch member 322 is oppositely arranged on the both ends of control valve rod 310 with sealed valve cap 330.When switch member 322 rotates, control valve
Bar 310 rotates equal angular with switch member 322.It is rotated by switching 320 drive control valve rod 310 of zipper mechanism, makes control valve
It is 310 the operation is stable of bar, reliable.
In the present embodiment, it controls between valve rod 310 and cylinder block 020 and is provided with bushing 351.The size of bushing 351 with
021 size lines matching of mounting hole, is equipped with the second sealing ring 352 on bushing 351, and the second sealing ring 352 is by bushing 351 and installation
Gap closing between hole 021, avoids gas leakage.Further, it controls between valve rod 310 and bushing 351 and is additionally provided with the second bronze medal
Bushing 353.
In the present embodiment, it is provided with oil sealing 361 between switch member 322 and control valve rod 310, oil sealing 361 is set in control
On valve rod 310 processed, and one end of oil sealing 361 is fastened between bushing 351 and control valve rod 310.
Fig. 7 is the partial enlarged view at VII in Fig. 3.Fig. 7 is please referred to, in the present embodiment, in order to ensure the close of oil sealing 361
Effect is sealed, controls and is provided with compression spring 341 between valve rod 310 and sealed valve cap 330, the axis direction along control valve rod 310 opens up
There are mounting groove 312, compression spring 341 to be arranged in mounting groove 312, and the axis of compression spring 341 is parallel with the control axis of valve rod 310.
During the work time, compression spring 341 is in compressive state, applies the bullet of directing switch part 322 in the axial direction to control valve rod 310
Spring force, control valve rod 310 under spring force compress oil sealing 361, ensure that oil sealing 361 is in sealing state.Further
, it controls and is additionally provided with spring conductor rod 342 between valve rod 310 and sealed valve cap 330, compression spring 341 is set in spring conductor rod
On 342, one end of compression spring 341 is abutted with spring conductor rod 342, and the other end is abutted with control valve rod 310.
In the present embodiment, the one end of sealed valve cap 330 far from control valve rod 310 is also associated with clutch lacing wire positioning plate
400.Clutch lacing wire positioning plate 400 is connected to 310 one end of control valve rod so that structure is compacter, satisfies the use demand.
The variable exhaust phase device 010 provided in the embodiment of the present invention, starts in use, velocity sensor is got
The tach signal of machine crankshaft, and the tach signal is transferred in control mechanism 200；Control mechanism 200 is by turning acquisition
Operation is identified in fast signal, obtains engine and is presently in work information, then control command servo motor pulls zipper 321,
Make switch member 322 that control valve rod 310 be driven to turn to suitable position, to make exhaust phase be in best angle.Such as Fig. 5 institutes
Show, when engine is in speed operation, control mechanism 200 turns to by control servomotor drive control valve rod 310
Two predeterminated positions, when piston moves downward to exhaust height H, when cylinder 022 is connected to exhaust duct, the exhaust gas in cylinder 022
It is discharged by exhaust duct, exhaust phase is in the best exhaust phase under speed operation；When engine is in middling speed operating mode,
Under the control of control mechanism 200, control valve rod 310 rotates counterclockwise to corresponding position, and exhaust height H is increased, and piston is transported downwards
Shift to an earlier date at the time of moving exhaust height H, exhaust phase advances to the best exhaust phase under current working；As shown in fig. 6, when hair
When motivation is in high-speed working condition, 200 drive control valve rod 310 of control mechanism rotates counterclockwise to the first predeterminated position, exhaust outlet
023 opens wide completely, and exhaust height H is located at maximum height, and exhaust phase advances to the best exhaust phase under high-speed working condition.
To sum up, the variable exhaust phase device 010 that the embodiment of the present invention provides, engine is obtained by velocity sensor
Speed of crankshaft signal, to make control mechanism 200 drive 300 turns of gas exhausting valve according to engine operating condition, control servomotor
Dynamic corresponding position, makes exhaust phase be in the best exhaust phase under the operating mode.When engine is in low speed, middling speed, high speed work
It can work under the best exhaust phase to match with residing operating mode under condition, so that engine performance is in best, can reduce
Scavenging loss improves effective compression ratio, to improve the thermal efficiency, reduces fuel consumption rate, and hoisting power improves emission performance.And
It is compact-sized, good seal, reliable operation.
The embodiments of the present invention also provide a kind of engine, which includes above-mentioned variable exhaust phase device
010 and cylinder block 020, the gas exhausting valve 300 of variable exhaust phase device 010 runs through cylinder block 020, is arranged in cylinder block
At 020 exhaust outlet 023.Since the engine includes above-mentioned variable exhaust device, also have in different operating conditions
It is lower to obtain best exhaust phase, scavenging loss is reduced, effective compression ratio is improved, to improve the thermal efficiency, reduces fuel consumption
Rate, hoisting power improve the advantageous effect of emission performance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of variable exhaust phase device, which is characterized in that be applied to two stroke engine, the variable exhaust phase device
Including：
Testing agency, the testing agency is for detecting the engine operating condition；
The control mechanism being electrically connected with the testing agency；And
The cylinder block of the gas exhausting valve being electrically connected with the control mechanism, the gas exhausting valve and the engine is movable
Ground connects；The activity of the gas exhausting valve is used to adjust the exhaust phase of the engine.
2. variable exhaust phase device according to claim 1, it is characterised in that：
The testing agency is velocity sensor, and the velocity sensor is used to detect the rotating speed of the engine crankshaft.
3. variable exhaust phase device according to claim 1, it is characterised in that：
The gas exhausting valve includes control valve rod and driving mechanism；The exhaust outlet in the cylinder block is arranged in the control valve rod
Place, and be rotatably coupled with the cylinder block；The driving mechanism is electrically connected with the control mechanism；The driving mechanism is used
It is rotated in driving the control valve rod.
4. variable exhaust phase device according to claim 3, it is characterised in that：
The gas exhausting valve further includes sealed valve cap；The sealed valve cap is arranged in the control valve rod far from the driving machine
One end of structure, and be rotatably coupled with the control valve rod.
5. variable exhaust phase device according to claim 3, it is characterised in that：
The driving mechanism includes servo motor and switch zipper mechanism, and the servo motor drives with the switch zipper mechanism
Connection；The switch zipper mechanism is fixedly connected with the control valve rod, and the servo motor is electrically connected with the control mechanism.
6. variable exhaust phase device according to claim 5, it is characterised in that：
The switch zipper mechanism includes zipper and switch member；The zipper is connect with the servo motor, described for driving
Switch member rotates；The switch member is fixedly connected with the control valve rod, for driving the control valve rod to rotate.
7. variable exhaust phase device according to claim 6, it is characterised in that：
The switch zipper mechanism further includes switch protecgulum and opening and closing tailgate, and the switch protecgulum is fixed with the opening and closing tailgate to be connected
It connects, forms the accommodating chamber for accommodating the switch member；The switch protecgulum is fixedly connected with the cylinder block.
8. variable exhaust phase device according to claim 4, it is characterised in that：
Compression spring, the axis of the axis of the compression spring and the control valve rod are provided between the sealed valve cap and the control valve rod
Line is parallel.
9. variable exhaust phase device according to claim 3, it is characterised in that：
It is provided with bushing between the control valve rod and the cylinder block.
10. a kind of engine, it is characterised in that：
The engine includes such as claim 1-9 any one of them variable exhaust phase devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267355.5A CN108286464A (en) | 2018-03-28 | 2018-03-28 | A kind of variable exhaust phase device and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267355.5A CN108286464A (en) | 2018-03-28 | 2018-03-28 | A kind of variable exhaust phase device and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108286464A true CN108286464A (en) | 2018-07-17 |
Family
ID=62834234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810267355.5A Pending CN108286464A (en) | 2018-03-28 | 2018-03-28 | A kind of variable exhaust phase device and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108286464A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202297A (en) * | 1977-06-22 | 1980-05-13 | Yamaha Hatsudoki Kabushiki Kaisha | Two-stroke engine having variable exhaust port timing |
| JPH04284126A (en) * | 1991-03-08 | 1992-10-08 | Yamaha Motor Co Ltd | Exhaust variable valve for internal combustion engine |
| JPH09291827A (en) * | 1996-04-30 | 1997-11-11 | Yamaha Motor Co Ltd | Two-cycle engine |
| US20030168027A1 (en) * | 2000-10-12 | 2003-09-11 | Kabushiki Kashia Moric | Exhaust timing controller for two-stroke engine |
| CN208024418U (en) * | 2018-03-28 | 2018-10-30 | 重庆隆鑫发动机有限公司 | A kind of variable exhaust phase device and engine |
-
2018
- 2018-03-28 CN CN201810267355.5A patent/CN108286464A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202297A (en) * | 1977-06-22 | 1980-05-13 | Yamaha Hatsudoki Kabushiki Kaisha | Two-stroke engine having variable exhaust port timing |
| JPH04284126A (en) * | 1991-03-08 | 1992-10-08 | Yamaha Motor Co Ltd | Exhaust variable valve for internal combustion engine |
| JPH09291827A (en) * | 1996-04-30 | 1997-11-11 | Yamaha Motor Co Ltd | Two-cycle engine |
| US20030168027A1 (en) * | 2000-10-12 | 2003-09-11 | Kabushiki Kashia Moric | Exhaust timing controller for two-stroke engine |
| CN208024418U (en) * | 2018-03-28 | 2018-10-30 | 重庆隆鑫发动机有限公司 | A kind of variable exhaust phase device and engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1498588B1 (en) | Two-stroke internal combustion engine | |
| JP4977146B2 (en) | Piston reciprocating internal combustion engine | |
| US4577597A (en) | Method and apparatus for supplying fuel to internal combustion engine | |
| EP0141650A2 (en) | Exhaust port system | |
| CN208024418U (en) | A kind of variable exhaust phase device and engine | |
| EP1977094B1 (en) | A two-stroke internal combustion engine with variable compression ratio and an exhaust port shutter | |
| US20010018899A1 (en) | Two-stroke engine | |
| EP0526538B1 (en) | Internal combustion engine | |
| CN108286464A (en) | A kind of variable exhaust phase device and engine | |
| US5205245A (en) | Two stroke engines | |
| US20090107446A1 (en) | Apparatus for the operation of a work object | |
| CN209875295U (en) | Electric control layered air inlet system for layered scavenging engine | |
| US7213546B2 (en) | Engine airflow management system | |
| US1318781A (en) | James mckechnie | |
| EP1088155B1 (en) | Engine intake system | |
| US20180149047A1 (en) | Method and device for operating a drive unit, drive unit, motor vehicle | |
| JPH05195788A (en) | Two-cycle internal combustion engine | |
| GB2088472A (en) | I.C. engine rotary cylindrical valves | |
| JP3622019B2 (en) | Internal combustion engine | |
| KR100262622B1 (en) | Induction system of internal combustion engine | |
| CN105822378A (en) | Electric air inlet valve mechanism with half-moon-shaped head | |
| KR880001742B1 (en) | Two cycle engine | |
| RU2002105687A (en) | INTERNAL COMBUSTION ENGINE (options) | |
| KR200151137Y1 (en) | Intake system for turbo-charger engines | |
| JPH06280575A (en) | Exhaust control device of two cycle engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |