CN2199315Y - Top stop type two stroke IC engine - Google Patents
Top stop type two stroke IC engine Download PDFInfo
- Publication number
- CN2199315Y CN2199315Y CN 94204423 CN94204423U CN2199315Y CN 2199315 Y CN2199315 Y CN 2199315Y CN 94204423 CN94204423 CN 94204423 CN 94204423 U CN94204423 U CN 94204423U CN 2199315 Y CN2199315 Y CN 2199315Y
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- CN
- China
- Prior art keywords
- plug
- power piston
- top stop
- top plug
- stroke
- 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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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a top stop type two stroke IC engine, comprising an air cylinder 14, a power stop 13, a burning chamber 12, a crankshaft 7, a connecting rod 6, a sparking plug 4, an air outlet 5, an intake duct 1, an intake charge one-way valve 2. The utility model also comprises a top stop 10, an air delivering check valve 3, a top stop spring 8, a suction chamber 9 and an ejector rod 11. The top stop is fixed at the upper part of the power stop, on which is provided with the air delivering check valve. The spring of the top stop spring is acted on the upper side of the top stop, the ejector rod is arranged between the top stop and the power stop, and the intake charge one-way valve is arranged at the exit of the intake duct. The utility model solves the problems of big fuel consumption of the existing two stroke gas engine and serious exhaust pollution.
Description
The top stop type two stroke IC engine belongs to the field of motor.
The gas exchange process of existing two-stroke gasoline engine is last cycle gas is driven away and to be replaced by the fuel-air mixture in the crankcase, consequently toxic emission efficient is low, it is not thorough to take a breath, and some fuel-air mixture is discharged from company with waste gas when ventilation, cause fuel consumption rate big, exhaust emission is serious.
The purpose of this utility model is to set up an auxiliary piston, in order to combustion gas and inspiration inflammable mixture, makes waste gas after burning and unburned inflammable mixture separate fully in gas exchange process.Do not contact mutually, thereby solve two-stroke gas and oil machine effectively because the problem that the unreasonable fuel consumption rate that causes of air-exchanging structure is big, exhaust emission is serious.
The utility model includes cylinder, power piston, firing chamber, bent axle, connecting rod, relief opening, spark plug, intake duct, breather check valve, and it also includes top plug, fore-set, induction chamber, top plug spring, gas transmission safety check.Power piston and top plug all are installed in the cylinder, and power piston is contained in the bottom of top plug, and power piston is connected with bent axle by connecting rod.The top plug is installed in the top of power piston, and the top of top plug and the top of power piston are opposed, and the top is provided with a gas transmission safety check beyond the Great Wall, enters the firing chamber in order to the control inflammable mixture.The elastic force of top plug spring act on the top plug above, the top plug derives from the elastic force of spring to the motoricity of lower dead center.Also be provided with fore-set between top plug and the power piston, its effect is the propulsion power that the transferring power piston makes progress to the top plug, and keeps the minimum clearance between the two-piston.Both the minimum space of firing chamber was beneficial to flowing and burning of mixed gas.Breather check valve is located at the place, air outlet of intake duct.The utility model has been cancelled suction port and the scavenging air belt that existing two stroke engine scavenging is used, so crankcase can not need be sealed.
The utility model makes two-stroke gas and oil machine be solved owing to the unreasonable fuel consumption rate that causes of air-exchanging structure problem big, that exhaust emission is serious owing to increased the top plug of a ventilation usefulness at all.And top plug has pre-heat effect to the fuel mixture that sucks, and helps fuel gasification; The top plug also obtains the cooling of fuel mixture simultaneously, helps improving the combustion performance and the thermal efficiency of motor like this, and the working life that prolongs the top plug.The top plug drives by power piston, so do not need complicated driving mechanism.Therefore the utility model is simple in structure, reliable operation.
Fig. 1 is the utility model overall structure schematic representation.
Fig. 2 is that the utility model overall structure schematic representation when being in lower dead center is filled on power piston and top.
Fig. 3 is that fill in from lower dead center overall structure schematic representation of the present utility model when top dead center moves on power piston and top.
Fig. 4 is that overall structure schematic representation of the present utility model when being in top dead center is filled on power piston and top.
Fig. 5 is that fill in from top dead center overall structure schematic representation of the present utility model when lower dead center is moved on power piston and top.
Embodiment: present embodiment is made up of cylinder 14, power piston 13, firing chamber 12, fore-set 11, top plug 10, induction chamber 9, top plug spring 8, bent axle 7, connecting rod 6, relief opening 5, spark plug 4, gas transmission safety check 3, breather check valve 2, intake duct 1.Power piston 13 and top plug 10 all are installed in the cylinder 14, and power piston is contained in the bottom of top plug, and power piston is connected with bent axle 7 by connecting rod 6, and moving up and down of power piston makes the crankshaft rotating work done.Top plug 10 is contained in the top of power piston, and the top of top plug is provided with a gas transmission safety check 3.Pressed top plug spring 8 on the spring seat of top plug quilt cover, the other end of top plug spring 8 is bearing on the cylinder head.(top plug spring can be contained in and also can be contained in the cylinder outside the cylinder, can directly contact with the top plug, also can contact with the top plug by connecting rod.) also being provided with the intake duct 1 that links to each other with vaporizer on the cylinder head, breather check valve 2 is equipped with in the intake duct outlet port.The top plug constitutes induction chamber 9 with the top of the cylinder 14 that is separated by it, and its effect is to suck inflammable mixture.Four fore-sets 11 are equipped with at the top of power piston 13, constitute firing chamber 12 between (fore-set 11 can also be located at the top of top plug) power piston top and the plug top, top.Top gas transmission safety check 3 beyond the Great Wall can make the inflammable mixture in the induction chamber flow into the firing chamber, and can not make the waste gas in the firing chamber flow into induction chamber, in near the top dead center of top, cylinder 14 tops plug the cylinder wall spark plug 4 is housed, is provided with relief opening 5 near the cylinder 14 bottom power piston lower dead center.
The structure of top stop type two stroke IC engine is not only applicable to two-stroke gasoline engine, but also to can be used for inflammable gass such as coal gas, petroleum gas be the two stroke engine of fuel, only needs that fuel system is changed into gaseous propellant engine gas mixer and pressure regulator commonly used this moment and get final product.
Working procedure of the present utility model is as follows: power piston and top are filled in when being in lower dead center such as Fig. 2, this moment, power piston was filled in together up by the top that fore-set 11 promotes to be positioned at lower dead center by lower dead center when top dead center move, close relief opening 5 at up process medium power piston, compression top plug spring 8 forces induction chamber 9 spaces to diminish gradually.Because this moment, breather check valve 2 was closed, so upward the pressure of the inflammable mixture of one-stroke inspiration is increasing in the induction chamber, when pressure during greater than beyond the Great Wall the spring force of gas transmission safety check 3 of top, mixed gas backs down gas transmission safety check 3, and constantly is pressed in the firing chamber 12 by induction chamber 9.When power piston and the common arrival of top plug top dead center, the pressure maximum in the firing chamber 12.Pressure difference between induction chamber 9 and the firing chamber 12 reduces, so the gas transmission safety check cuts out under the effect of its spring force, the mixed gas process finishes.This process such as Fig. 3 and Fig. 4.When the firing chamber moves to spark-plug location, spark plug sparking, the mixed gas in the ignition combustion chamber, the rapid burning expansion of mixed gas forces power piston to move to lower dead center, promotes bent axle 7 rotation works done by connecting rod 6.
Power piston from top dead center to lower dead center movement process such as Fig. 4, Fig. 5, because gas pressure is greater than the elastic force of top plug spring 8 in the firing chamber, the top plug still is in top dead center, but descending along with power piston, the space of firing chamber increases gradually, waste gas after burning pressure also reduces gradually in the firing chamber, when pressure is filled in spring force less than the top, top plug beginning is descending, the waste gas that promotes in the firing chamber moves to relief opening 5 directions, open relief opening up to power piston, waste gas under the promotion of self pressure and top plug rapidly outside relief opening discharge machine.The space of induction chamber increases gradually in the descending process of top plug, produces vacuum, and the inflammable mixture that is produced by vaporizer backs down breather check valve 2, and inflammable mixture constantly enters the induction chamber from intake duct 1.When power piston arrived lower dead center, the top plug also contacted with fore-set thereupon and arrives lower dead center under top plug spring promotes, and the waste gas in the firing chamber is discharged from relief opening, and exhaust process finishes.The volume of induction chamber reaches maximum simultaneously, and the negative pressure of induction chamber reduces, so breather check valve is closed under its spring force, intake process finishes, and prepares the next circulation of beginning.
Claims (2)
1, top stop type two stroke IC engine, it includes cylinder (14), power piston (13), firing chamber (12), bent axle (7), connecting rod (6), spark plug (4), intake duct (1), relief opening (5), breather check valve (2), gas transmission safety check (3), top plug spring (8), fore-set (11), induction chamber (9); Top plug (10) is installed in the top of power piston (13), a gas transmission safety check (3) is established on the top beyond the Great Wall, the elastic force of top plug spring (8) act on top plug (10) above, be provided with the place, air outlet that fore-set (11) breather check valve (2) is located at intake duct (1) between top plug and the power piston.
2, top stop type two stroke IC engine according to claim 1, it is characterized in that the top plug (10) and the top of the cylinder (14) that is separated by it constitute induction chamber (9), constitute firing chamber (12) between the top of the top of power piston (13) and top plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94204423 CN2199315Y (en) | 1994-02-23 | 1994-02-23 | Top stop type two stroke IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94204423 CN2199315Y (en) | 1994-02-23 | 1994-02-23 | Top stop type two stroke IC engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199315Y true CN2199315Y (en) | 1995-05-31 |
Family
ID=33823662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94204423 Expired - Fee Related CN2199315Y (en) | 1994-02-23 | 1994-02-23 | Top stop type two stroke IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199315Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996229A (en) * | 2011-06-22 | 2013-03-27 | 库尔班·海比布 | A kind of air intake method of two-stroke internal combustion engine |
| CN103174505A (en) * | 2013-02-20 | 2013-06-26 | 邱文化 | Two-stroke engine |
| CN108625980A (en) * | 2018-07-19 | 2018-10-09 | 高文峰 | A kind of variable combustion two-cycle gasoline engine |
| CN111173615A (en) * | 2019-12-06 | 2020-05-19 | 谭智 | Two-stroke internal combustion engine and working method thereof |
| CN111946456A (en) * | 2020-09-28 | 2020-11-17 | 付克印 | Novel double-piston two-stroke engine |
-
1994
- 1994-02-23 CN CN 94204423 patent/CN2199315Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996229A (en) * | 2011-06-22 | 2013-03-27 | 库尔班·海比布 | A kind of air intake method of two-stroke internal combustion engine |
| CN103174505A (en) * | 2013-02-20 | 2013-06-26 | 邱文化 | Two-stroke engine |
| CN103174505B (en) * | 2013-02-20 | 2016-02-17 | 邱文化 | Two stroke engine |
| CN108625980A (en) * | 2018-07-19 | 2018-10-09 | 高文峰 | A kind of variable combustion two-cycle gasoline engine |
| CN108625980B (en) * | 2018-07-19 | 2023-08-18 | 高文峰 | Two-stroke gasoline engine with variable combustion chamber |
| CN111173615A (en) * | 2019-12-06 | 2020-05-19 | 谭智 | Two-stroke internal combustion engine and working method thereof |
| CN111946456A (en) * | 2020-09-28 | 2020-11-17 | 付克印 | Novel double-piston two-stroke 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 |