CN1303991A - Rotary valve admission gear - Google Patents
Rotary valve admission gear Download PDFInfo
- Publication number
- CN1303991A CN1303991A CN 99123973 CN99123973A CN1303991A CN 1303991 A CN1303991 A CN 1303991A CN 99123973 CN99123973 CN 99123973 CN 99123973 A CN99123973 A CN 99123973A CN 1303991 A CN1303991 A CN 1303991A
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- CN
- China
- Prior art keywords
- rotary valve
- hole
- combustion engine
- admission gear
- valve
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- 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.)
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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention is a distributing mechanism of internal combustion engine, consisting of rotary valve, cylinder cap, driving mechanism of rotary valve and antifriction sealing blocks. Said mechanism is a rotary valve mounted on the cylinder cap of internal combustion engine, a through-hole is cut on the rotating plate of the rotary valve, and the said through-hole can be matched with inlet and outlet on the cylinder cap. Under the action of driving mechanism, the rotary valve can utilize said hole to control opening and closing of inlet and outlet. Said invented mechanism uses rotary valve to make distribution, it has no need of rockerarm to compress valve spring and has no incorrect distribution, and can reduce vibration and noise of said mechanism so that it can reduce oil consumption of internal combustion engine and raise its rotating speed.
Description
The present invention relates to a kind of distribution device that can effectively improve its performance of stroke piston combustion engine.
The distribution device of internal-combustion engine is to drive camshaft by timing gear, when the lift of camshaft overhead cam increases gradually, makes the rocking arm rotation overcome the pretightening force of valve spring, force valve to be opened downwards, when the lift of cam reduces gradually, because the effect of valve spring impels valve-closing again.Because valve must overcome spring tension when opening, this will consume certain energy, influences the output of its power.People are used as rigid body to this kind distribution device always in addition, think that valve motion is subjected to the control of cam profile fully.In fact, this kind distribution device can accurately distribution in when operation, can produce strong vibration and hot-tempered sound simultaneously.Promptly influence the raising of engine speed, also influence the reliability and the durability of internal-combustion engine.
In order to solve problem recited above, general way is to improve internal combustion (IC) Engine Design and manufacture level comprehensively.Strengthen the lubricated of cam portion, improve the quality of lubricant oil.But in any case, the shortcoming of this kind distribution device itself can't fundamentally change, so its structure of this distribution device itself has just limited the raising of output power of internal-combustion engine and the raising of rotating speed.
The distribution device that the purpose of this invention is to provide a kind of internal combustion engine, it can improve the output power and the rotating speed of internal-combustion engine effectively.
The object of the present invention is achieved like this, and a rotary valve is housed on the cylinder head of internal-combustion engine, is equipped with through hole at rotary valve, and be furnished with the antifriction seal arrangement on rotary valve.
Rotary valve is made up of rotating shaft, rotating disk, and leave on rotating disk in the hole on the rotary valve, configuration antifriction sealing block on the top and bottom of rotating disk, turn in the journey at rotating disk, open, close intake duct or air outlet flue, make its effect of playing inlet and exhaust valve, ventilation guarantees its proper functioning to internal-combustion engine.
The present invention has changed the distribution device of original internal-combustion engine, utilizes the valve that rotary valve has replaced spring.Cause the loss of energy so the tension force that has not had the cam driven rocking arm to overcome valve spring makes valve opening, the phenomenon of apneustic disengaging cam profile and the distribution device that causes produces judder and hot-tempered sound makes internal combustion engine more steady; Eliminated distribution misalignment phenomenon, so the rotating speed of internal-combustion engine is improved.
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof
Fig. 1 is the sectional drawing of the rotary valve admission gear of proposition according to the present invention.
Fig. 2 is the schematic representation of the single rotary valve admission gear working principle of the present invention.
Below in conjunction with drawings and Examples invention is described further:
Consult shown in Figure 1, rotary valve admission gear is to drive live axle 1 and the positive hour wheel of rotary valve by timing gear 2, and 3,9 rotate rotary valve 7, the 4th, and conduit, rotating disk at rotary valve 7 has antifriction sealing block 6,8 on the working surface up and down, and the rotary valve among Fig. 1 is in the position that communicates with air flue B.
Consult Fig. 2, A is an air outlet flue, and B intake duct, C are the air distribution hole on the rotary valve rotating disk.
Air distribution hole by 1, to move to 2 positions be intake stroke in the position.
By 2, to move to 3 positions be compression stroke in the position.
By 3, to move to 4 positions be expansion space stroke in the position.
By 4, to move to 1 position be exhaust stroke in the position.
When the piston of internal-combustion engine was in exhaust top dead center, the hole C on the rotary valve rotating disk was between intake duct B and air outlet flue A.As shown in Figure 2, when piston by top dead center when lower dead center is moved, rotary valve also rotates under the driving of rotating mechanism thereupon.When piston ran to lower dead center, crank angle turned over 180 °, and hole C skims over intake duct B, under the effect of descent of piston, the gas in the intake duct B was sucked cylinder, and hole C moves to position 2 by position 1, has finished intake stroke.When internal-combustion engine in compression, during working stroke, hole C does not cooperate with intake duct B and air outlet flue A, is in closed condition.This moment, crank angle was 540 °, and piston is in bottom dead center position.Hole C also moves on to position 4 by position 2.Under the flywheel action of inertia, when top dead center moved, hole C skimmed over exhaust road junction A to piston by the cylinder lower dead center, and air outlet flue is open-minded, and with waste gas after burning, under the effect of piston stroking upward, A extrudes cylinder by air flue.When piston was got back to top dead center again, hole C got back to initial position again, and this moment, crank angle was 720 °, had finished a work cycle of internal-combustion engine.
Distribution device recited above is to control intake duct and air outlet flue switching by a rotary valve, also can utilize two rotary valves to control intake duct and air outlet flue respectively, finishes the distribution of internal-combustion engine.
Claims (3)
1. a rotary valve admission gear is by rotary valve (7), rotary valve driving mechanism, cylinder cap, antifriction sealing block (6) and (8) composition, it is characterized in that: rotary valve (7) is housed on the cylinder head of internal-combustion engine, on rotary valve (7), has through hole, and on rotary valve (7), be furnished with the antifriction seal arrangement.
2. rotary valve admission gear according to claim 1, its feature is equipped with through hole on the rotating disk of rotary valve (7), and descends configuration antifriction sealing block (6), (8) on the working surface thereon, also is equipped with through hole on antifriction sealing block (6), (8).
3. rotary valve admission gear according to claim 1 is characterized in that being " circle " along the axial projection of the rotating shaft of rotary valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123973 CN1303991A (en) | 1999-11-22 | 1999-11-22 | Rotary valve admission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123973 CN1303991A (en) | 1999-11-22 | 1999-11-22 | Rotary valve admission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1303991A true CN1303991A (en) | 2001-07-18 |
Family
ID=5283082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99123973 Pending CN1303991A (en) | 1999-11-22 | 1999-11-22 | Rotary valve admission gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1303991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410582A (en) * | 2013-05-31 | 2013-11-27 | 中国人民解放军理工大学 | Two-dimensional centrifugal engine valve structure |
| CN106194311A (en) * | 2016-07-12 | 2016-12-07 | 广州富士汽车整线集成有限公司 | A kind of step motor drive I. C engine distribution mechanism and step motor drive internal combustion engine |
-
1999
- 1999-11-22 CN CN 99123973 patent/CN1303991A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410582A (en) * | 2013-05-31 | 2013-11-27 | 中国人民解放军理工大学 | Two-dimensional centrifugal engine valve structure |
| CN106194311A (en) * | 2016-07-12 | 2016-12-07 | 广州富士汽车整线集成有限公司 | A kind of step motor drive I. C engine distribution mechanism and step motor drive internal combustion engine |
| CN106194311B (en) * | 2016-07-12 | 2019-02-12 | 广州富士汽车整线集成有限公司 | A kind of stepper motor driving internal combustion engine valve actuating mechanism and stepper motor driving internal combustion engine |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| REG | Reference to a national code |
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