CN203130163U - Pneumatic automobile engine valve mechanism based on sliding valves - Google Patents
Pneumatic automobile engine valve mechanism based on sliding valves Download PDFInfo
- Publication number
- CN203130163U CN203130163U CN 201220386405 CN201220386405U CN203130163U CN 203130163 U CN203130163 U CN 203130163U CN 201220386405 CN201220386405 CN 201220386405 CN 201220386405 U CN201220386405 U CN 201220386405U CN 203130163 U CN203130163 U CN 203130163U
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- valve
- pneumatic
- sliding valves
- valve mechanism
- air
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Abstract
The utility model belongs to the field of pneumatic automobile engines, and discloses a pneumatic automobile engine valve mechanism based on sliding valves. The mechanism mainly comprises a valve base, a junction block, the sliding valves, a cam shaft, a chain wheel, a rocker arm shaft and a rocker arm. A main air intake and air exhaust mechanism is composed of the two sliding valves, and allocation of an air inlet and an air outlet is achieved through moving of valve cores in the sliding valves. According to the pneumatic automobile engine valve mechanism based on the sliding valves, an original cam mechanism is reserved, a traditional valve mechanism is improved, therefore resistance on a valve by airflow when a pneumatic engine carries out air intake and air exhaust is effectively reduced, accordingly, force transmitted to a cam by a main shaft and used for driving the valve is reduced, and efficiency of the pneumatic engine is improved; and meanwhile, force balance on an airflow inlet and outlet is achieved through adoption of a sliding valve type mechanism, compared with a traditional valve mechanism, the pneumatic automobile engine valve mechanism based on the sliding valves has the advantages that pre-tightening force of a pre-tightening spring is reduced greatly, and therefore reliability of the pneumatic engine valve mechanism is improved.
Description
Technical field
The present invention relates to the distribution device of air powered engine.
Background technique
The development of automobile is faced with the problem of environment and the energy.Automobile consumption half of global oil production rate, vehicle exhaust becomes the principal element of urban air pollution and global warming.The continuous minimizing of non-renewable energy resources will certainly propose new challenge to automotive industry.Because pressurized air has cleaning, advantage such as renewable, in order to realize sustainable development, is the air motor of energy source with pressurized air, and be that the concept of the Pneumatic automobile of power source is suggested with this motor.Air powered engine is a kind of dynamic power machine that the pressurized air energy stored is converted into mechanical energy output.
The medium of air motor stored energy that different with the orthodox car motor is is pressurized air, for improving the energy storage volume to improve the automobile flying power, the compressed-air actuated pressure that stores is far above atmospheric pressure, so will be far away traditional motor pressure of inspiration(Pi) of the suction pressure of air powered engine generally speaking, if adopt traditional cam like this---valve distribution mechanism is as the distribution device of air motor, the resistance of valve open can increase along with bleed pressure forms doubly, to such an extent as to valve can not normally be opened, therefore be necessary the distribution device of air motor is done corresponding the improvement.
The model utility content
The objective of the invention is: a kind of air powered engine guiding valve distribution device based on guiding valve is provided, to adapt to the job requirement of air powered engine intake and exhaust, improves the economic performance of air powered engine simultaneously.
Technological scheme of the present invention is:
A kind of air powered engine distribution device based on guiding valve is characterized in that: adopt guiding valve to be connected between suction port and the cylinder and between relief opening and the cylinder, the sliding valve style valve mechanism comprises spool (8), valve pocket (9), seal ring (11), spring (12), valve gap (13) is formed; Spool adopts double blade structure, and the area of two leaf cross-sections equates that during valve open, gas acts on the equilibrium of forces on two blades.
Sealing configuration between suction port (14) and the relief opening (10) has not only adopted seal ring (11) to do axial seal, adopts upper blade (15) lower surface to contact with valve pocket (9) simultaneously and does radial seal.
The efficient guiding valve distribution device of air powered engine mainly comprises valve base, the piece that confluxes, guiding valve, camshaft, sprocket wheel, pitman arm shaft, rocking arm.Basic cam mechanism keeps the cam mechanism of original conventional engines.Change traditional valve mechanism and become the sliding valve style valve mechanism.Its working procedure is as follows:
When air inlet, cam jack-up rocking arm moves up spool under the effect of rocking arm, valve open, and suction port is communicated with relief opening, the equilibrium of forces about gas acts on two blades; Traditional distribution device based on seat valve, during valve open, the gas flow direction is opposite with the direction that spool is opened, and gas has drag effect to spool, and therefore the distribution device based on guiding valve adopts force balance principle, has reduced the drag effect of air-flow to spool.
After air inlet finished, spool moved down under the effect of initial tension of spring, suction port and exhaust close, and upper blade (15) lower surface contacts with valve pocket (9) and is radially forming sealing.
Exhaust process is identical with intake process.
This distribution device has following characteristics: 1. have the gas of certain pressure, the active force to spool in air-inlet cavity is in a basic balance.2. not only adopted seal ring (11) to do axial seal, adopted upper blade (15) lower surface to contact with valve pocket (9) simultaneously and do radial seal, made entire mechanism more superior in sealability.
Description of drawings
The distribution device of Fig. 1 air powered engine;
The internal cross section figure of Fig. 2 guiding valve;
The conflux sectional view of piece of Fig. 3, wherein: 1. valve base, piece, 3. slide block 2. conflux, 4. camshaft, 5. sprocket wheel, 6. pitman arm shaft, 7. rocking arm, 8. valve core rod, 9. valve pocket, 10. relief opening, 11. seal ring, 12. springs, 13. valve gaps, 14. suction port, 15. upper blades, 16. lower blades, 17. interface 1,18. interface 2,19. interfaces 3
Embodiment
Below the present invention is further illustrated.
The guiding valve distribution device of air powered engine of the present invention comprises valve base (1), the piece that confluxes (2), guiding valve (3), camshaft (4), sprocket wheel (5), pitman arm shaft (6), rocking arm (7).Drive sprocket wheel (5) rotation by chain on the main shaft, thereby drive camshaft (4) motion; The phase configuration of camshaft (4) overhead cam satisfies the requirement of orthodox car motor, during air inlet, the point of contact of cam (4) and rocking arm (7) moves to far point from the point close to cam heart distance; rocking arm (7) one ends are jack-up upwards gradually; the other end is gradually to pressing down, and promotes spool valve core bar (8), compression spring (12); suction port (14) is communicated with relief opening (10), and air inlet; After air inlet finishes, rotation along with camshaft, cam (4) moves near point from the point from cam heart distance with the point of contact of rocking arm (7); rocking arm (7) one ends fall after rise downwards gradually; the other end upwards rises gradually; and spur spool valve core bar (8), extension spring (12), suction port and relief opening are closed gradually.So just finished one distribution circulation.
In order to reduce the wearing and tearing of spool, improve the tightness that guarantee this structure its working life simultaneously, this slide-valve gear increases the wearing and tearing that wear ring reduces spool, adopts seal ring to strengthen the tightness of guiding valve, and the form of structurally having added conical surface seal simultaneously makes its tightness more reliable.
Because pressurized gas is in a basic balance to the active force of two blades of spool in air-inlet cavity, the resistance of opening spool reduces greatly, and then can reduce to be passed to by main shaft the thrust that is used for opening spool of cam, the labour-saving has been improved the efficient of whole air powered engine simultaneously.
Because the relief opening of air inlet guiding valve finally communicates with the cylinder of air motor with the suction port of exhaust slide valve, so the relief opening of air inlet guiding valve is connected with interface 1 (17), the suction port of exhaust slide valve is connected with interface 2 (19), and interface 3 (18) is connected with the piston cylinder suction port of air motor.Will make total compacter like this.
Claims (2)
1. air powered engine distribution device based on guiding valve is characterized in that: adopt guiding valve to be connected between suction port and the cylinder and between relief opening and the cylinder, the sliding valve style valve mechanism is by spool (8), valve pocket (9), seal ring (11), spring (12), valve gap (13) is formed; Spool adopts double blade structure, and the area of two leaf cross-sections equates that during valve open, gas acts on the equilibrium of forces on two blades.
2. a kind of air powered engine distribution device based on guiding valve according to claim 1, it is characterized in that: the sealing configuration between suction port (14) and the relief opening (10), not only adopted seal ring (11) to do axial seal, adopted upper blade (15) lower surface to contact with valve pocket (9) simultaneously and do radial seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386405 CN203130163U (en) | 2012-08-06 | 2012-08-06 | Pneumatic automobile engine valve mechanism based on sliding valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386405 CN203130163U (en) | 2012-08-06 | 2012-08-06 | Pneumatic automobile engine valve mechanism based on sliding valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130163U true CN203130163U (en) | 2013-08-14 |
Family
ID=48938154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386405 Withdrawn - After Issue CN203130163U (en) | 2012-08-06 | 2012-08-06 | Pneumatic automobile engine valve mechanism based on sliding valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817637A (en) * | 2012-08-06 | 2012-12-12 | 北京航空航天大学 | Gas distribution mechanism of pneumatic automobile engine based on sliding valves |
| CN108035924A (en) * | 2017-11-29 | 2018-05-15 | 重庆维庆液压机械有限公司 | A kind of hydraulic regulation valve gear |
-
2012
- 2012-08-06 CN CN 201220386405 patent/CN203130163U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817637A (en) * | 2012-08-06 | 2012-12-12 | 北京航空航天大学 | Gas distribution mechanism of pneumatic automobile engine based on sliding valves |
| CN102817637B (en) * | 2012-08-06 | 2014-10-29 | 北京航空航天大学 | Gas distribution mechanism of pneumatic automobile engine based on sliding valves |
| CN108035924A (en) * | 2017-11-29 | 2018-05-15 | 重庆维庆液压机械有限公司 | A kind of hydraulic regulation valve gear |
| CN108035924B (en) * | 2017-11-29 | 2019-07-23 | 重庆维庆液压机械有限公司 | A kind of hydraulic regulation valve gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |