CN201159093Y - Variable air valve mechanism of hydraulic internal combustion engine - Google Patents
Variable air valve mechanism of hydraulic internal combustion engine Download PDFInfo
- Publication number
- CN201159093Y CN201159093Y CNU2008200791012U CN200820079101U CN201159093Y CN 201159093 Y CN201159093 Y CN 201159093Y CN U2008200791012 U CNU2008200791012 U CN U2008200791012U CN 200820079101 U CN200820079101 U CN 200820079101U CN 201159093 Y CN201159093 Y CN 201159093Y
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- valve
- main piston
- piston cylinder
- piston
- combustion engine
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Abstract
Disclosed is a variable valve mechanism of a hydraulic internal combustion engine, which utilizes hydraulic pressure to control the air gas distribution of the internal combustion engine to continuously change the air distribution phase. The variable valve mechanism is structurally composed of a cylinder head, a valve, a valve piston, a valve piston cylinder, a main piston, a main piston cylinder body and a camshaft. The operating principle comprises that when the internal combustion engine is in operation, a cam pushes the main piston downwards, when the lower end of the main piston moves to a position of the upper edge of the inclined surface of an adjusting cylinder without sealing an oil outlet, the valve piston doesn't move and the valve is in closed state under the action of a valve spring, and when the lower end of the main piston moves to a position of the upper edge of the inclined surface of the adjusting cylinder by sealing the oil outlet, oil in the main piston cylinder enters the valve piston cylinder via a oil conveying pipe to push the valve piston to open the valve, thereby enabling gas to enter or to be discharged from a combustion chamber via a gas flue to realize gas changing. The opening time and the lift range of the valve can be adjusted by adjusting the position of the adjusting cylinder, thereby continuously changing the air distribution phase.
Description
Technical field
The utility model belongs to that vapour rubs and the accessory technical field.
Background technique
Modern Internal-Combustion Engine is to send bigger power, and its rotating speed is more and more higher, and speed range is more and more wideer; For realizing better ventilation, this just requires the variable needs that could satisfy various operating modes of port timing.Many for this reason internal-combustion engines adopt variable valve timing mechanism, generally adopt the variable variable valve actuator for air of cam phase; But this variable valve actuator for air intake duration angle is constant, closes the angle late though may strengthen air inlet during high speed, and valve overlap reduces, air inlet when being unfavorable for high speed.
The model utility content
The purpose of this utility model is: provide a kind of and produce pressure oil with the motion of camshaft actuated master cylinder piston, and promote the valve piston by the pressure oil that produces, realize the unlatching of valve; By the position of gear ring, tooth bar control master cylinder adjusting tube, control the T/A of master cylinder to the valve oil oil supply cylinder, and then the opening and closing time and the lift of control valve, realize continuously changing port timing.Can change the opening time and the aperture of valve easily according to the needs of various operating modes, realize best port timing.And can independently control the size that intake valve closes the angle late, the negative pressure when reducing intake stroke in the cylinder makes pump inhale loss and reduces; Reach energy-conservation purpose.
The concrete structure of the utility model is made up of cylinder head, valve, valve piston, valve piston cylinder, main piston, main piston cylinder body, camshaft, valve spring, main piston spring, throttle valve, adjusting tube etc.Wherein, the valve piston is made drum shape, places in the valve piston cylinder, be fixed together with the valve afterbody, and if the valve spring of its return; The valve piston cylinder is barrel-shaped, is fixed on the cylinder body to link to each other with the main piston cylinder body with oil pipe.The main piston cylinder body is a cylindrical shape, has oil outlet on it, and the oil inlet pipe of following terminal strip individual event valve is screwed on cylinder head.Main piston is cylindrical, places in the main piston cylinder body; The main piston spring that is used to make its return is established in the main piston lower end, regulates jacket casing outside the main piston cylinder body, and can relatively rotate; Contact oil outlet position, top Bevel, the lower end is shaped on a gear ring, and gear ring is meshed by step motor drive with control valve opening and closing time with an adjusting tube tooth bar.Throttle valve is in parallel with the transport pipe one-way valve, be loaded between valve piston cylinder and the main piston cylinder body, and be meshed with the throttle valve tooth bar with gear ring, by step motor drive to regulate its aperture.
Working principle: during internal combustion engine, oil pump with the lubricant oil of internal-combustion engine by the oil inlet pipe on the main piston cylinder body in one-way valve is sent into the main piston cylinder body, make in the main piston cylinder body to be full of lubricant oil, unnecessary lubricant oil is then discharged from oil outlet.When camshaft rotated, cam pushed away main piston downwards, and when the main piston lower end moved to the top edge of regulating the tube inclined-plane and oil outlet do not sealed the position, the oil in the cylinder was discharged from oil outlet; Pressure in the main piston cylinder body does not raise, and the valve piston is motionless, and valve is in closed condition under the effect of valve spring.When the main piston lower end moved to the top edge of regulating the tube inclined-plane oil outlet is sealed the position, the oil in the main piston cylinder can not be discharged from oil outlet; Pressure in the main piston cylinder body raises, and oil enters throttle valve and transport pipe one-way valve through transport pipe; Enter the valve piston cylinder then and promote the valve piston, open valve, make gas enter or discharge the firing chamber by air flue, realize ventilation.Ventilation finishes back valve piston, main piston is got back to original position respectively under the effect of valve spring, main piston spring.This moment the transport pipe closed check valve, the oil in the valve piston cylinder can only flow back in the main piston cylinder body by throttle valve; When the little load operation of internal-combustion engine, by step motor drive throttle valve tooth bar, regulate throttle valve opening, the oil that can control in the valve piston cylinder flows back to the interior speed of main piston cylinder body, makes the valve piston be later than main piston and gets back to original position; Intake valve closes the angle late and becomes big, and the negative pressure when reducing intake stroke in the cylinder makes pump inhale loss and reduces.Control system for internal combustion engine can be according to rotating speed, load and the tail gas inspection results of internal-combustion engine, and the control step motor driving is regulated the action of tube tooth bar, thereby rotates gear ring, and drive is regulated tube and rotated, and changes the relative position of inclined-plane top edge and oil outlet; And then the opening time and the aperture of change valve, realize the best port timing that becomes.
Description of drawings
Accompanying drawing is a structural drawing of the present utility model, and 1 one-way valve, 2 oil inlet pipes, 3 are regulated tube tooth bar, 4 throttle valve tooth bars, 5 throttle valve, 6 transport pipe one-way valves, 7 adjusting tubes, 8 main piston cylinders, 9 camshafts, 10 main pistons, 11 oil outlets, 12 valve piston cylinders, 13 valve pistons, 14 valve spring, 15 valves, 16 cylinder head, 17 air flues, 18 inclined-planes, 19 main piston springs, 20 transport pipe among the figure.
Embodiment
In the accompanying drawings, the valve piston places in the valve piston cylinder, is fixed together with the valve afterbody; Valve piston cylinder, main piston cylinder body are screwed on cylinder head; Main piston places main piston cylinder body top, and the upper end contacts with camshaft, main piston lower end dress main piston spring.Throttle valve is in parallel with the transport pipe one-way valve, is loaded between valve piston cylinder and the main piston cylinder body.
Claims (1)
- A kind of hydraulic internal combustion engine variable valve actuator for air is characterized in that: hydraulic internal combustion engine variable valve actuator for air structure is made up of cylinder head, valve, valve piston, valve piston cylinder, main piston, main piston cylinder body, camshaft, valve spring, main piston spring, throttle valve, adjusting tube; Wherein the valve piston is made drum shape, places in the valve piston cylinder, is fixed together with the valve afterbody; Establish valve spring in the valve piston cylinder, the valve piston cylinder is a drum shape, is fixed on the cylinder head, links to each other with the main piston cylinder body with oil pipe; The main piston cylinder body is a cylindrical shape, has oil outlet on it, and the lower end is connected to the oil inlet pipe of band individual event valve, is screwed on cylinder head; Main piston is cylindrical, places in the main piston cylinder body, and the main piston spring is established in the main piston lower end; Regulate jacket casing outside the main piston cylinder body, the top Bevel, the lower end is shaped on a gear ring, and gear ring is meshed with an adjusting tube tooth bar; Throttle valve is in parallel with the transport pipe one-way valve to be loaded between valve piston cylinder and the main piston cylinder body, is meshed by step motor drive to regulate its aperture with the throttle valve tooth bar with gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200791012U CN201159093Y (en) | 2008-02-15 | 2008-02-15 | Variable air valve mechanism of hydraulic internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200791012U CN201159093Y (en) | 2008-02-15 | 2008-02-15 | Variable air valve mechanism of hydraulic internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159093Y true CN201159093Y (en) | 2008-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200791012U Expired - Fee Related CN201159093Y (en) | 2008-02-15 | 2008-02-15 | Variable air valve mechanism of hydraulic internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159093Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886562A (en) * | 2010-06-30 | 2010-11-17 | 龚文资 | Variable valve timing and variable valve lift control system for automobile engine |
| CN104160120A (en) * | 2012-03-09 | 2014-11-19 | 瓦锡兰芬兰有限公司 | Valve actuator arrangement |
| CN104454065A (en) * | 2014-10-29 | 2015-03-25 | 浙江大学 | Electro-hydraulic driven fully-variable valve mechanism of pneumatic engine and fully-variable implementation method thereof |
| CN104454065B (en) * | 2014-10-29 | 2017-01-04 | 浙江大学 | Air motor electro-hydraulic driving fully variable valve actuator for air and complete variable implementation method |
| CN110185551A (en) * | 2019-07-09 | 2019-08-30 | 朱国钧 | A kind of oil-free air power engine |
| WO2020057098A1 (en) * | 2018-09-20 | 2020-03-26 | 天津大学 | Engine combustion system having efficient multiple combustion modes |
| CN111188662A (en) * | 2020-01-07 | 2020-05-22 | 绵阳华博精工机械有限公司 | Valve mechanism |
-
2008
- 2008-02-15 CN CNU2008200791012U patent/CN201159093Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886562A (en) * | 2010-06-30 | 2010-11-17 | 龚文资 | Variable valve timing and variable valve lift control system for automobile engine |
| CN104160120A (en) * | 2012-03-09 | 2014-11-19 | 瓦锡兰芬兰有限公司 | Valve actuator arrangement |
| CN104160120B (en) * | 2012-03-09 | 2016-12-28 | 瓦锡兰芬兰有限公司 | Valve actuator is arranged |
| CN104454065A (en) * | 2014-10-29 | 2015-03-25 | 浙江大学 | Electro-hydraulic driven fully-variable valve mechanism of pneumatic engine and fully-variable implementation method thereof |
| CN104454065B (en) * | 2014-10-29 | 2017-01-04 | 浙江大学 | Air motor electro-hydraulic driving fully variable valve actuator for air and complete variable implementation method |
| WO2020057098A1 (en) * | 2018-09-20 | 2020-03-26 | 天津大学 | Engine combustion system having efficient multiple combustion modes |
| US11143091B2 (en) | 2018-09-20 | 2021-10-12 | Tianjin University | Efficient engine combustion system with multiple combustion modes |
| CN110185551A (en) * | 2019-07-09 | 2019-08-30 | 朱国钧 | A kind of oil-free air power engine |
| CN111188662A (en) * | 2020-01-07 | 2020-05-22 | 绵阳华博精工机械有限公司 | Valve mechanism |
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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: 20081203 Termination date: 20110215 |