CN2407129Y - Air valve control of engine - Google Patents
Air valve control of engine Download PDFInfo
- Publication number
- CN2407129Y CN2407129Y CN 00204586 CN00204586U CN2407129Y CN 2407129 Y CN2407129 Y CN 2407129Y CN 00204586 CN00204586 CN 00204586 CN 00204586 U CN00204586 U CN 00204586U CN 2407129 Y CN2407129 Y CN 2407129Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- camshaft
- cam
- air valve
- hydraulic cylinder
- 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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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to an air valve control device of an engine, which is composed of an air valve driving cylinder, a hydraulic cylinder, and a cam. A gear pair is arranged between a crankshaft and a camshaft. The cam top of the cam shaft touches to a piston of the hydraulic cylinder. An air valve is arranged on the piston rod end of the air valve driving cylinder. The air valve driving cylinder and the hydraulic cylinder are communicated by a pipeline. As the shaft distance of the crankshaft and the camshaft is reduced, the height of the engine can be dropped. The utility model has the advantages of simpler structure, and low noise, and the service life of the engine is prolonged.
Description
The utility model relates to a kind of engine air controlling device for doors, is mainly used in four stroke engine, the usefulness that the keying of valve is controlled.
Prior art is to control rocking arm so that valve is carried out opening and closing by camshaft, and the rotation of camshaft is driven by sprocket wheel wheel bar pair by bent axle.Its deficiency is: because the distance between bent axle and the camshaft is big, thereby, cause the height of engine structure big; Volume is bigger; Structure is also complicated; Mounting or dismounting and maintenance be trouble; Be easy to generate noise.
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and provides a kind of and make that the motor height reduces, structure is simple, noise is lower and mounting or dismounting, the more convenient engine air controlling device for doors of maintenance.
The purpose of this utility model can reach by following measure: the utility model is made up of valve actuation cylinder, oil hydraulic cylinder and cam, between bent axle and the camshaft gear pair is arranged, the cam of camshaft contacts cylinder plunger, the tailpiece of the piston rod of valve actuation cylinder has valve, and pipeline UNICOM is arranged between valve actuation cylinder and the oil hydraulic cylinder.
Small gear on the bent axle and the engagement of the gearwheel on the camshaft.
The plunger head of oil hydraulic cylinder has spring.
There is spring the piston below of valve actuation cylinder.
The drawing of accompanying drawing is described as follows:
Fig. 1 is total figure of the present utility model;
Fig. 2 be the A of Fig. 1 to view, only represent the structure of cam 16 among the figure;
Fig. 3 be the A of Fig. 1 to view, only represent the structure of cam 14 among the figure.
The accompanying drawing piece number is represented:
1, valve actuation cylinder 2, oil hydraulic cylinder 3, camshaft 4, cylinder sleeve
5, cylinder body 6, piston 7, piston rod 8, valve
9, spring 10, bent axle 11, connecting rod 12, piston
13, small gear 14, cam 15, gearwheel 16, cam
17, pipeline 18, valve 19, Returnning spring 20, hydraulic cylinder
21, oil hydraulic cylinder 22, plunger
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
Fig. 1-Fig. 3 represents structure of the present utility model, is made up of valve actuation cylinder 1, oil hydraulic cylinder 2 and camshaft 3.The valve actuation cylinder is positioned at the cylinder cap of cylinder sleeve 4 tops, and V-shaped layout has piston 6 in the cylinder body 5, and there are valve 8 and 18 in piston rod 7 lower ends, and there is spring 9 cylinder inner carrier below, for the usefulness of piston reset (valve-closing).
Bent axle 10, connecting rod 11, piston 12 and cylinder sleeve 4 are prior art.On bent axle one end, be fixedly connected with small gear 13, be positioned near the camshaft 3 the bent axle and be fixedly connected with gearwheel 15, small gear and gearwheel engagement.Two cams 14 and 16 that differ 90 ° of layouts are arranged on the camshaft, from gearwheel near be cam 14, far away is cam 16.Hydraulic cylinder 20 is arranged above cam 14, and there is hydraulic cylinder 21 cam 16 tops.There is Returnning spring 19 plunger 22 tops in the hydraulic cylinder 20 and 21.Between two valve actuation cylinder bodies and two hydraulic cylinders pipeline 17 UNICOMs are arranged respectively.
During use, piston 12 drives bent axle by connecting rod and rotates with work done the gearwheel of the pinion drive camshaft of bent axle.Camshaft whenever revolves and turns around, and jack-up cam 14 and 16 respectively once respectively.Plunger in the cam 14 jack-up hydraulic cylinders 20, with hydraulic oil pressure to the valve actuation cylinder to open valve 8, in hydraulic cylinder 20 above Returnning spring 19 and the valve 8 under the effect of spring 9, respectively hydraulic cylinder 20 inner plunger are resetted and valve 8 top piston resets, to reach the purpose of closing after valve 8 is opened once.After, plunger in the cam 16 jack-up hydraulic cylinders 21, with hydraulic oil pressure to the valve actuation cylinder to open valve 18, in hydraulic cylinder 21 above Returnning spring 19 and the valve 18 under the effect of spring 9, respectively hydraulic cylinder 21 inner plunger are resetted and valve 18 upper pistons reset, to reach the purpose of closing after valve 18 is opened once.Circulation and so forth is to finish the continuously running of motor.
The utility model contrast prior art has following advantage:
Because the distance between axles of bent axle and camshaft reduces greatly, thereby the height of engine can be reduced; Structure is simpler; Reducing noise; Service life of aeroengine prolongs.
Claims (4)
1, a kind of engine air controlling device for doors, it is characterized in that, form by valve actuation cylinder, oil hydraulic cylinder and cam, between bent axle and the camshaft gear pair is arranged, the cam of camshaft contacts cylinder plunger, the tailpiece of the piston rod of valve actuation cylinder has valve, and pipeline UNICOM is arranged between valve actuation cylinder and the oil hydraulic cylinder.
2, engine air controlling device for doors according to claim 1 is characterized in that, small gear on the bent axle and the engagement of the gearwheel on the camshaft.
3, engine air controlling device for doors according to claim 1 is characterized in that, the plunger head of oil hydraulic cylinder has spring.
4, engine air controlling device for doors according to claim 1 is characterized in that, there is spring the piston below of valve actuation cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00204586 CN2407129Y (en) | 2000-02-13 | 2000-02-13 | Air valve control of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00204586 CN2407129Y (en) | 2000-02-13 | 2000-02-13 | Air valve control of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2407129Y true CN2407129Y (en) | 2000-11-22 |
Family
ID=33572916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00204586 Expired - Fee Related CN2407129Y (en) | 2000-02-13 | 2000-02-13 | Air valve control of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2407129Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606253A (en) * | 2012-04-01 | 2012-07-25 | 五邑大学 | Hydraulic type continuously variable valve device of engine |
-
2000
- 2000-02-13 CN CN 00204586 patent/CN2407129Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606253A (en) * | 2012-04-01 | 2012-07-25 | 五邑大学 | Hydraulic type continuously variable valve device of engine |
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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 |