CN2929196Y - Rotary valve air distribution mechanism of reciprocating engine - Google Patents
Rotary valve air distribution mechanism of reciprocating engine Download PDFInfo
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- CN2929196Y CN2929196Y CN 200620115800 CN200620115800U CN2929196Y CN 2929196 Y CN2929196 Y CN 2929196Y CN 200620115800 CN200620115800 CN 200620115800 CN 200620115800 U CN200620115800 U CN 200620115800U CN 2929196 Y CN2929196 Y CN 2929196Y
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- rotary valve
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Abstract
To resolve the problem that the to-and-fro open-and-close aeriduct utilized in engines vibrates badly, the utility model which is a rotation valve distribution device utilized in engines provides a simple structure rotation aeriduct distribution device. The utility model adopts a rotation valve, the rotation valve is a body of revolution which is arranged in the cylinder cover, and the bent shaft goes through timing wheel and timing belt and drives the rotation valve to rotate. The air intakes and outtakes are arranged axially along the valve body, air inlets and outlets arranged on the outer periphery of the valve respectively channel with the air intakes and outtakes. Because of the adoption of rotation aeriduct, which eliminates the to-and-fro movement of aeriducts, the utility model effectively reduces the vibrations caused by the open-and-close of aeriducts, thereby effectively reducing the vibration of the whole engine. The intakes and the outtakes are arranged in a single rotary body, thereby only very little driving media are utilized, the utility model is especially applicable to small-sized single-cylinder or multi-cylinder engines.
Description
Technical field
The rotary valve distribution device of a kind of Reciprocating engine of the utility model is the cyclically operating valve that a kind of motor is used, and particularly a kind of have a columnar rotary valve.
Background technique
The tie point that vibration is fastening to each fixed connection point, particularly screw of system causes loosening especially easily.Therefore, reducing to vibrate is the important topic of development motor.The distribution device of Reciprocating engine usually adopts is cam-push rod-lever-back and forth open and close the form of valve, or cam-lever-back and forth open and close valve.In a word, the valve that all has a cover back and forth to open and close.Because the effect of inertia, valve back and forth the to-and-fro motion meeting of switching and push rod, lever produce useless vibration.This vibration has promptly consumed energy, and the stability of engine system is also had a negative impact.
Summary of the invention
In order to overcome the big problem of reciprocal switching valve vibration that known motor adopts, the utility model proposes a kind of rotary valve distribution device simple in structure, get rid of to-and-fro motion fully, produce the switching of valve to rotatablely move, and with the inlet and outlet channels designs in a solid of rotation.
The purpose of this utility model is achieved in that a kind of rotary valve distribution device of Reciprocating engine, comprising: cylinder, piston, cylinder head, connecting rod, bent axle, the timing driving wheel, timing driven wheel, Timing Belt, suction tude, outlet pipe, firing chamber, it is characterized in that rotary valve induction mouth, rotary valve relief opening, the rotary valve induction road, rotary valve air outlet flue, rotary valve.Described rotary valve is a tubular revolving body, and described rotary valve is installed in the cylinder head, and bent axle drives described rotary valve by timing driving wheel, Timing Belt, timing driven wheel and rotates.Described rotary valve induction road and described rotary valve air outlet flue are along described rotary valve axially-aligned, described rotary valve outer peripheral surface has described rotary valve induction mouth and described rotary valve relief opening, described rotary valve induction mouth and described rotary valve relief opening are communicated with described rotary valve induction road, described rotary valve air outlet flue respectively with the firing chamber, described rotary valve induction road is connected with suction tude, outlet pipe respectively with described rotary valve air outlet flue.
Radially be in transmission connection by gear between the rotary valve in multicylinder engine, each cylinder rotary valve central axis is arranged in parallel.Another kind of multi-cylinder scheme is: be that axial restraint connects each cylinder rotary valve central axis conllinear between each cylinder rotary valve of multicylinder engine.
The beneficial effect that the utility model produces is: owing to adopted rotary valve, exempted the to-and-fro motion of distribution device fully, effectively reduced the vibrations that valve opens and closes, the vibrations of whole motor are reduced greatly.Because the inlet and outlet channels designs is in a solid of rotation, driving component seldom.The minimizing of distribution device part makes motor simpler, and rate of fault reduces, and regulates convenient.The utility model is specially adapted to small-sized list or multicylinder engine.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the utility model embodiment one a structural representation, is the A-A sectional view of Fig. 2;
Fig. 2 is the B-B sectional view of Fig. 1;
Fig. 3 is rotary valve induction mouth and the position view of rotary valve relief opening on the rotary valve circumference;
Fig. 4 is embodiment two a structural representation, a kind of multi-cylinder scheme;
Fig. 5 be the C of Fig. 4 to view, be embodiment two transmission schematic representation;
Fig. 6 is embodiment three a structural representation, another kind of multi-cylinder scheme.
Embodiment
Embodiment one:
Fig. 1 and Fig. 2 are embodiment's one of the present utility model structural representations, and what describe among the figure is the scheme of a single-cylinder four-stroke engine, and what sequence number was expressed among the figure is:
1. timing driving wheel, 2. Timing Belt, 3. firing chamber, 4. suction tude, 5. rotary valve, 6. timing driven wheel, 7. rotary valve induction road, 8. rotary valve induction mouth, 9. Stamping Steel Ribbon, 10. rotary valve relief opening, 11. rotary valve air outlet flues, 12. cylinder head, 13. seal ring, 14. outlet pipes, 15. cylinders, 16. piston, 17. connecting rods, 18. bent axles.
As shown in Figure 1, 2, rotary valve 5 is tubular revolving bodies, and rotary valve is installed in the cylinder head 12, and bent axle 18 rotates by timing driving wheel 1, Timing Belt 2, timing driven wheel 6 driven rotary valve bodies.Rotary valve induction road 7 and rotary valve air outlet flue 11 are along the rotary valve axially-aligned, and rotary valve can be interpreted as a pipeline, block in the middle of the pipeline, and pipeline is truncated into two halves, and half is an intake duct, and second half is an air outlet flue.At the rotary valve outer peripheral surface, just have rotary valve induction mouth 8 and rotary valve relief opening 10 at end place near two halfpipes.Rotary valve induction mouth and rotary valve relief opening different angle of circumference of correspondence on the rotary valve circumference.Rotary valve induction mouth and rotary valve relief opening are communicated with rotary valve induction road, rotary valve air outlet flue respectively with firing chamber 3.The rotary valve induction road is connected with suction tude 4, outlet pipe 14 respectively with the rotary valve air outlet flue.Working procedure is such: bent axle is by timing driving wheel, Timing Belt, the rotation of timing driven wheel driven rotary valve body, and air can enter the rotary valve induction road by suction tude along the direction of arrow among the figure.Suction tude can not be rotated, and it is connected with the rotary valve induction road by a rotating seal ring, and suction tude both can not influence the rotary valve rotation like this, can guarantee that again the air that enters is hedged off from the outer world.In the time of aspirating stroke, the rotary valve induction mouth of the rotary valve induction road the other end screws in the firing chamber, this means INO, and firing chamber and suction tude are connected, and air enters the firing chamber along the direction of arrow among the figure.Behind overcompression, two strokes of acting, the beginning exhaust stroke, the relief opening on the rotary valve screws in the firing chamber, this means that outlet valve opens, firing chamber and outlet pipe connection, air is discharged from the firing chamber along the direction of arrow among the figure.The arrangement on the external circumferential surface of rotary process of rotary valve induction mouth and rotary valve relief opening must meet the rule of the inlet and outlet of four stroke engine.Fig. 3 is 360 ° of pairing four strokes of rotary valve rotation.As can be seen from the figure, the bent axle revolution moved for two weeks, and just 720 °, rotary valve rotates 360 °.The rotary valve revolution moves stroke of 90 ° of correspondences.The α correspondence is aspirating stroke among the figure, the β correspondence be compression stroke, the γ correspondence be expansion stroke, the δ correspondence be exhaust stroke.The mouth wide pairing angle of circumference of rotary valve induction mouth on the valve body outer peripheral surface should be α, but outlet valve is before closing in practice, and suction valve just should be opened, so the pairing angle of circumference of rotary valve induction mouth width is α '.
Embodiment two:
The utility model also can be applied on the multicylinder engine, and problem is how rotating power to be delivered on the rotary valve of each cylinder.Present embodiment has proposed a kind of scheme, and as shown in Figure 3, although only drawn two cylinders among the figure, and three cylinders, four cylinders or multi-cylinder can be with this kind methods.What the sequence number among the figure was expressed is: 19. active cone gears, 20. passive cone gears, 21. first cylinder drive wheels, 22. the first cylinder suction tude, 23. intermediary wheel, 24. second cylinder suction tude, 25. second cylinder drive wheels, 26. the second cylinder rotary valve, 27. second cylinder, 28. second cylinder outlet pipes, 29. first cylinder outlet pipes, 30. the first cylinder rotary valve, 31. first cylinders.
In the present embodiment, radially connect by gear between the rotary valve, each cylinder rotary valve central axis is arranged in parallel.Transmission process as shown in Figure 4, bent axle 18 drives initiatively cone gears 19, initiatively cone gear drives passive cone gear 20, the effect of using cone gear is to change the running shaft direction to adapt to the sense of rotation of rotary valve.Passive cone gear and the coaxial transmission of timing driving wheel, the timing driving wheel drives the timing driven wheel by Timing Belt, the timing driven wheel drives 30 rotations of the first cylinder rotary valve, the gear that also has with the coaxial transmission of timing driven wheel, be exactly that the first cylinder drive wheel, 21, the first cylinder drive wheels are passed to the second cylinder drive wheel 25 by intermediary wheel 23 with power.The second cylinder drive wheel drives rotary valve 26 rotations of second cylinder.The first cylinder suction tude 22 and the second cylinder suction tude 24 are connected by rotating seal ring and the first cylinder rotary valve and the second cylinder rotary valve respectively, owing to be gas-entered passageway, pressure is less, so rotary seal can be competent at fully, and hermetic resistance is also less.And aspect the exhaust passage, first cylinder advances comb 29 and first cylinder and advances comb 28 and all be fixed on the cylinder head, owing to be that the fixing seal effect is better, can bear the pressure of exhaust.
Embodiment three:
Fig. 6 is the schematic representation of present embodiment structure, among the figure: 32. transmission of power pieces.
The scheme of another kind of multicylinder engine during present embodiment, the transmission of power are to rely on axial restraint connection between the rotary valve.As shown in Figure 6, the first cylinder rotary valve 30 and the second cylinder rotary valve, 26 central axis conllinear, and by a transmission of power piece 32, both are fixedly connected, promptly become an axle, rotate simultaneously.Also can two cylinder rotary valves be fixed together, rotate synchronously, realize that two cylinder inlet and outlet are synchronous with bent axle with other fixation methods.The first cylinder outlet pipe can not be fixed on the cylinder head, must combine with ring packing, forms motive sealing.
Present embodiment can be applied in the multicylinder engine equally.
Claims (3)
1. the rotary valve distribution device of a Reciprocating engine comprises: cylinder, piston, cylinder head, connecting rod, bent axle, the timing driving wheel, timing driven wheel, Timing Belt, suction tude, outlet pipe, firing chamber, it is characterized in that rotary valve induction mouth, rotary valve relief opening, the rotary valve induction road, rotary valve air outlet flue, rotary valve; Described rotary valve is a tubular revolving body, and described rotary valve is installed in the cylinder head, and bent axle drives described rotary valve by timing driving wheel, Timing Belt, timing driven wheel and rotates; Described rotary valve induction road and described rotary valve air outlet flue are along described rotary valve axially-aligned, described rotary valve outer peripheral surface has described rotary valve induction mouth and described rotary valve relief opening, described rotary valve induction mouth and described rotary valve relief opening are communicated with described rotary valve induction road, described rotary valve air outlet flue respectively with the firing chamber, described rotary valve induction road is connected with suction tude, outlet pipe respectively with described rotary valve air outlet flue.
2. the rotary valve distribution device of a kind of Reciprocating engine according to claim 1 is characterized in that, radially is in transmission connection by gear between the rotary valve of each cylinder of multicylinder engine, and each cylinder rotary valve central axis is arranged in parallel.
3. the rotary valve distribution device of a kind of Reciprocating engine according to claim 1 is characterized in that, is that axial restraint connects each cylinder rotary valve central axis conllinear between the rotary valve of each cylinder of multicylinder engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620115800 CN2929196Y (en) | 2006-06-08 | 2006-06-08 | Rotary valve air distribution mechanism of reciprocating engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620115800 CN2929196Y (en) | 2006-06-08 | 2006-06-08 | Rotary valve air distribution mechanism of reciprocating engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929196Y true CN2929196Y (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620115800 Expired - Fee Related CN2929196Y (en) | 2006-06-08 | 2006-06-08 | Rotary valve air distribution mechanism of reciprocating engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929196Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865055A (en) * | 2009-04-06 | 2010-10-20 | 株式会社电装 | The air inlet system that is used for internal-combustion engine |
| CN105927306A (en) * | 2016-05-03 | 2016-09-07 | 胡和萍 | Internal combustion engine with novel air inlet and outlet structure |
-
2006
- 2006-06-08 CN CN 200620115800 patent/CN2929196Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865055A (en) * | 2009-04-06 | 2010-10-20 | 株式会社电装 | The air inlet system that is used for internal-combustion engine |
| CN101865055B (en) * | 2009-04-06 | 2012-07-25 | 株式会社电装 | Air intake device for internal combustion engine |
| CN105927306A (en) * | 2016-05-03 | 2016-09-07 | 胡和萍 | Internal combustion engine with novel air inlet and outlet structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |