CN2716512Y - Internal combustion engine air valve - Google Patents
Internal combustion engine air valve Download PDFInfo
- Publication number
- CN2716512Y CN2716512Y CN 200420073518 CN200420073518U CN2716512Y CN 2716512 Y CN2716512 Y CN 2716512Y CN 200420073518 CN200420073518 CN 200420073518 CN 200420073518 U CN200420073518 U CN 200420073518U CN 2716512 Y CN2716512 Y CN 2716512Y
- Authority
- CN
- China
- Prior art keywords
- air valve
- spool
- air
- shaft shoulder
- explosive motor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an internal combustion engine air valve. The utility model comprises an air valve core which is connected with a time gauge sprocket wheel, the outside of which is respectively provided with an outlet of an air inlet path and an inlet of an air exhausting path, and a sealing section of the valve core is covered with an air valve sleeve whose flank is provided with an air valve opening. Compared wit prior art, the utility model reduces the vibration and the noise of the engine, reduces the self-consumption power of the engine, the air inlet and air outlet are more corresponding, and the utility model is suitable for using in various internal combustion engines.
Description
Technical field
The utility model relates to internal combustion engine, especially a kind of revolvable explosive motor air valve.
Background technique
At present, the air valve of traditional piston internal-combustion engine, form by air valve stem, air valve seat, spring, spring seat, camshaft and rocking arm etc., it is the distribution device that adopts the camshaft top spring type, be to open air valve, rebound by the spring handle air valve stem again and close that gas check valve finishes by cam roof pressure air valve stem.Its structure is very complicated, number of parts is many, not only manufacture cost height, poor reliability, and cam roof pressure air valve stem unlatching air valve can bump, the frequency shake of spring for valve when resilience all can produce bigger vibrations and noise, and when running up, suction valve and exhaust valve opening and close not to the time, like this with regard to loss the workmanship power of motor, the output power of motor is descended.Therefore, existing valve train has formed the principal element that the restriction engine power performance improves, the key factor that has been formed into the raising of restriction engine reliability of air valve structure.
Summary of the invention
The utility model provides a kind of explosive motor air valve, and it can solve in the prior art, and engine output is low, vibrations and the big problem of noise.
In order to address the above problem, the scheme that the utility model adopts is: this explosive motor air valve include one with the time advise the gas valve core of the import of sprocket wheel is connected, the outside is respectively equipped with intake duct outlet and air outlet flue, outside this spool one seal section, be set with the air valve cover that its side is provided with the air valve mouth.
The part of above-mentioned seal spool section can be columniform body, in described body, can be provided with the dividing plate that described intake duct and described air outlet flue are cut off, this dividing plate with the two-port of this body respectively as the import of described intake duct and the outlet of described air outlet flue.Above-mentioned spool is positioned at the outer part of described air valve cover can be provided with the shaft shoulder, and the rule sprocket wheel is contained in a side of this shaft shoulder when described, and described spool is contained in the air valve shell by bearing.
The part of above-mentioned seal spool section can also be conical body, in described body, can be provided with the dividing plate that described intake duct and described air outlet flue are cut off, this dividing plate and with the two-port of this body respectively as the import of described intake duct and the outlet of described air outlet flue.Above-mentioned spool is positioned at the outer part of described air valve cover can be provided with the shaft shoulder, in a side of this shaft shoulder holddown spring is housed, and the rule sprocket wheel then can be contained on this shaft shoulder side when described, and described spool is contained in the air valve shell by bearing.Above-mentioned air valve cover also can be equipped with the compensating ring with proper temperature expansion coefficient over against an end of the described spool shaft shoulder, and it and the effect of cooperatively interacting of above-mentioned holddown spring can make described spool keep good sealing state with described air valve cover under different temperature.
The utility model is contained in compared with prior art has following beneficial effect on the explosive motor:
1, the vibrations and the noise of motor have been reduced.Because the utility model only is made of air valve cover and spool, is rotating operation, during running, do not have the collision of available engine air valve when work and frequently shake, it is more steady and quiet therefore to get into smooth.
2, reduce the consumable power of motor, improve the output power of motor.Because the technology that existing air valve adopts cam roof pressure air valve stem to open air valve, back down in the process of air valve stem at cam, overcome the elastic force of spring for valve and cylinder inner high voltage gas pressure to air valve stem, the working power of loss motor, and there are not these resistances of available engine air valve in this rotary air valve basically when work, therefore, improve the output power of motor, reached fuel-saving purpose.
3, air inlet and exhaust more to the time.Because the outer shaft shoulder that is provided with of air valve cover, the time rule sprocket wheels be contained in a side of this shaft shoulder, during the running of this air valve directly by the bent axle transmission, therefore, the opening and closing of air valve all to the time.
4, simple in structure, manufacturing process and cost are low, and it is little to take up room.
Description of drawings
Fig. 1 is the utility model embodiment 1 engine-mounted user mode figure.
Fig. 2 is the utility model embodiment 2 engine-mounted user mode figure.
Embodiment
Below in conjunction with the accompanying drawing example structure of the present utility model is described in further detail:
Among the embodiment 1 as shown in Figure 1, this explosive motor air valve includes a gas valve core 3 that is connected with time rule sprocket wheel 8, this gas valve core outside is respectively equipped with the outlet 5 of intake duct and the import 4 of air outlet flue, the opening angle of outlet 5 and import 4 equals 56 ° of gas valve core body circumference respectively, import 4 and the angle that exports between 5 are 45 °, outside this spool one seal section, be set with air valve cover 1, this air valve overlaps its side and is provided with air valve mouth 2, the opening angle of this air valve mouth equals 45 ° of valve cover circumference, the part of spool 3 seal sections is columniform bodys, in body, can be provided with dividing plate 6 with intake duct and air outlet flue partition, this dividing plate with the two-port of this body respectively as the import 15 of intake duct and the outlet 14 of air outlet flue, spool 3 is positioned at air valve cover 1 outer part the shaft shoulder 7 is set, time rule sprocket wheel 8 is contained in a side of this shaft shoulder, spool 3 is contained in the air valve shell by bearing 9, and air valve shell is provided with radiating fin 10 outward.The utility model is contained on the explosive motor, and air valve cover 1 is embedded on the cylinder head 13, and air valve mouth 2 is connected with the firing chamber 16 of cylinder 17, the time rule sprocket wheels 8 join by the timing gear on chain and the bent axle.
Among the embodiment 2 as shown in Figure 2, this explosive motor air valve includes a gas valve core 18 that is connected with time rule sprocket wheel, the part of spool 18 seal sections is conical bodys, in body, be provided with dividing plate equally with intake duct and air outlet flue partition, spool is positioned at the outer part of air valve cover the shaft shoulder is set equally, side at this shaft shoulder is equipped with holddown spring 11, time rule sprocket wheel then is contained on this shaft shoulder side, spool is contained in the air valve shell by bearing, air valve shell is provided with radiating fin outward, the air valve cover also is equipped with the compensating ring 12 with proper temperature expansion coefficient over against an end of the described spool shaft shoulder, it and holddown spring 11 effect of cooperatively interacting can make spool keep good sealing state with the air valve cover under different temperature.
During work, when piston when cylinder top turns round downwards, gas valve core the time rule sprocket wheels by under the drive of chain, also and then rotation makes overlapping the opening of the gentle valve port of outlet of intake duct, fresh inflammable gas is inhaled into cylinder, has finished intake stroke; Piston up moves at the bottom of cylinder again, and in the forward part of compression stroke, the air valve mouth also is not closed fully, inner pressure of air cylinder still is lower than atmospheric pressure, the speed of moving on the piston is slower, still can utilize air-flow inertia and pressure difference to continue air inlet, so air valve mouth pass in evening a bit helps cylinder charge; Piston continues up to move, close gas check valve, inflammable gas is compressed in the firing chamber, at this moment, and plug ignition blast acting, piston is under the promotion of explosive power, operation acting downwards, when piston will arrive cylinder bottom, the gentle valve port of the import of air outlet flue began overlapping opening, exhaust in advance, exhaust in advance is favourable to the exhaust resistance that reduces exhaust stroke; Piston moves to the top from cylinder bottom, and the gentle valve port of the import of air outlet flue is overlapping, and waste gas is discharged, and when piston ran to cylinder head, air valve was closed.
Claims (6)
1, a kind of explosive motor air valve is characterized in that: have one to be connected with time rule sprocket wheel, the outside is respectively equipped with the gas valve core of the import of the outlet of intake duct and air outlet flue, is set with the air valve cover that its side is provided with the air valve mouth outside this spool one seal section.
2, explosive motor air valve according to claim 1 is characterized in that: the part of described seal spool section is columniform body, is provided with the dividing plate with described intake duct and described air outlet flue partition in described body; The import of described intake duct and the outlet of described air outlet flue are respectively the two-port of this body.
3, explosive motor air valve according to claim 2 is characterized in that: described spool is positioned at the outer part of described air valve cover and is provided with the shaft shoulder, and the rule sprocket wheel is contained in a side of this shaft shoulder when described, and described spool is contained in the air valve shell by bearing.
4, explosive motor air valve according to claim 1 is characterized in that: the part of described seal spool section is conical body, is provided with the dividing plate with described intake duct and described air outlet flue partition in described body; The import of described intake duct and the outlet of described air outlet flue are respectively the two-port of this body.
5, explosive motor air valve according to claim 4 is characterized in that: described spool is positioned at the outer part of described air valve cover and is provided with the shaft shoulder; The rule sprocket wheel is contained on this shaft shoulder side when described, and described spool is contained in the air valve shell by bearing.
6, explosive motor air valve according to claim 5 is characterized in that: described air valve cover is equipped with compensating ring over against a side of the described spool shaft shoulder, at the opposite side of this shaft shoulder holddown spring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073518 CN2716512Y (en) | 2004-07-06 | 2004-07-06 | Internal combustion engine air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420073518 CN2716512Y (en) | 2004-07-06 | 2004-07-06 | Internal combustion engine air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2716512Y true CN2716512Y (en) | 2005-08-10 |
Family
ID=34874240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420073518 Expired - Fee Related CN2716512Y (en) | 2004-07-06 | 2004-07-06 | Internal combustion engine air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2716512Y (en) |
-
2004
- 2004-07-06 CN CN 200420073518 patent/CN2716512Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |