CN2316463Y - Two-stroke IC engine - Google Patents
Two-stroke IC engine Download PDFInfo
- Publication number
- CN2316463Y CN2316463Y CN 97230621 CN97230621U CN2316463Y CN 2316463 Y CN2316463 Y CN 2316463Y CN 97230621 CN97230621 CN 97230621 CN 97230621 U CN97230621 U CN 97230621U CN 2316463 Y CN2316463 Y CN 2316463Y
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- CN
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- Prior art keywords
- cylinder
- piston
- air
- stroke
- suction valve
- Prior art date
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- Expired - Fee Related
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a two-stroke IC engine which is composed of a cylinder, a piston, a connecting rod, a crank shaft, an oil spray port, etc. A scavenging hole and an exhaust hole are not arranged below the cylinder wall, and an air inlet valve and an exhaust valve are arranged on a cylinder cover. The air inlet valve is communicated with an air admission device, high pressure air generated by the air admission device is controlled by the air inlet valve and is orderly conveyed to a combustion chamber of the cylinder. Compared with the existing two-stroke IC engine, the working stroke of the utility model is long, and the intensity and the service life of the cylinder are improved.
Description
The utility model relates to a kind of two stroke IC engine.
Existing two stroke IC engine, generally be provided with transfer port and exhaust port on cylinder wall, as direct current air valve scavenging type two-stroke internal-combustion engine, a circle transfer port is arranged at the cylinder wall bottom, it highly accounts for 12% of whole piston stroke, and scavenging air enters combustion chamber of air cylinder by scavenging pump by transfer port.Owing on cylinder wall, be provided with transfer port and exhaust port, make the piston working stroke reduce a part, be the height in hole, make the intensity of cylinder and working life reduce simultaneously.
The purpose of this utility model provides a kind of two stroke IC engine of total travel acting.
To achieve these goals, technical solution of the present utility model is: by cylinder, piston, connecting rod, bent axle, jets etc. are formed two stroke IC engine, do not establish transfer port and exhaust port on the cylinder wall, and on cylinder head, be provided with suction valve, outlet valve, suction valve is connected with an air intake device, the high pressure air that air intake device produces is supplied gas to combustion chamber of air cylinder regularly by suction valve control, outlet valve is opened when piston is moved upward by lower dead centre, suction valve cuts out, INO is pressed into high pressure air when piston moves upward to the about 60 ° of crank angles of before top dead center, after this outlet valve is followed by closing in the very short time, suction valve cuts out when piston moves upward to the about 50 ° of crank angles of before top dead center, when piston moves upward to about 30 ° to the 10 ° crank angles of before top dead center, fuel sprays into combustion chamber of air cylinder with vaporific by jet, contact with the indoor High Temperature High Pressure air of cylinder combustion and mix after promptly produce spontaneous combustion and burning, the high temperature and high pressure gas burning expansion also promotes piston and moves downward work done, outlet valve is opened when piston moves downward near lower dead centre, when piston motion when lower dead centre moves upward again, just repeat another circulation again.
Owing to do not establish transfer port and exhaust port on the cylinder wall of above-mentioned technical solution, two stroke IC engine can be realized the total travel acting, its effect is near the total travel acting effect of quartastroke engine, and while the utility model is compared the intensity and the working life of its cylinder and obviously improved with existing two stroke IC engine.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model example structure schematic representation.
Wherein: 1. cylinder, 2. piston, 3. connecting rod, 4. bent axle, 5. jet, 6. suction valve, 7. outlet valve,
8. air intake device, 9. cylinder combustion amount, 10. pneumatic tube, 11. high pressure air-storage chambers, 12. pneumatic tube pistons,
13. unidirectional self-acting valve.
As shown in the figure, the utility model is by cylinder 1, piston 2, connecting rod 3, bent axle 4, jet 5, suction valve 6, outlet valve 7, constitute power section, air intake device provides high pressure air then for combustion chamber of air cylinder 9, air intake device is made of pneumatic tube 10 and high pressure air-storage chamber 11, pneumatic tube piston 12 is driven by bent axle 4, the suction port of high pressure air-storage chamber 11 is provided with unidirectional self-acting valve 13, the air outlet of high pressure air-storage chamber 11 is communicated with suction valve 6, and the high pressure air that air intake device 8 produces is supplied gas to combustion chamber of air cylinder 9 regularly by suction valve 6 controls.In work cycle process of the present utility model, suction valve 6 is in closed condition when drawing together plug 2 and being moved upward by lower dead centre, outlet valve 7 is opened, when piston 2 arrives 60 ° of bent axle 4 corners of before top dead center, suction valve 6 is opened, when piston 2 arrives 58 ° of bent axle 4 corners of before top dead center, outlet valve 7 is closed, in suction valve 6 opens to a period of time that outlet valve 7 closes, pressurized gas are extruded combustion chamber of air cylinder 9 to partial combustion tail gas, piston 2 continues to move upward when arriving 50 ° of bent axle 4 corners of before top dead center, suction valve 6 cuts out, at this moment, confining gas in combustion chamber of air cylinder 9 is that high pressure air-storage chamber 11 is sent into the pressurized gas of combustion chamber of air cylinder 9 and the mixed gas of a small amount of combustion tail gas, when drawing together 30 ° to 10 ° bent axle 4 corners of plug 2 arrival before top dead center, fuel sprays into combustion chamber of air cylinder 9 with vaporific by jet 5, contact with wherein high temperature and high pressure gas and mix, produce spontaneous combustion and burning, the temperature and pressure of combustion chamber of air cylinder 9 is further raise, piston 2 surpasses after top dead center, gas promptly begins to expand, and promotes piston 2 and move downward, when arriving 20 ° of bent axle 4 corners of lower dead centre precontract; Outlet valve 7 is opened, the beginning exhaust, and piston 2 moves to lower dead centre, moves upward and continues exhaust, repeats another circulation again.In multi-cylinder engine, the energy of piston 2 up strokes is to be supplied with by other cylinders of working, and in single-cylinder engine, the energy of piston 2 up strokes is then provided by the flywheel of stored energy.
Claims (3)
1, a kind of two stroke IC engine, by cylinder, draw together plug, connecting rod, bent axle, jet etc. and form, it is characterized in that: do not establish transfer port and exhaust port on the cylinder wall, be connected with an air intake device (8) and be provided with suction valve (6), outlet valve (7), suction valve (6) on cylinder head, the high pressure air that air intake device (8) produces is supplied gas to combustion chamber of air cylinder (9) regularly by suction valve (6) control.
2, two stroke IC engine according to claim 1, it is characterized in that: air intake device (8) is made of pneumatic tube (10) and high pressure air-storage chamber (11), pneumatic tube piston (12) is driven by bent axle (4), the suction port of high pressure air-storage chamber (11) is provided with unidirectional self-acting valve (13), and the outlet of high pressure air-storage chamber (11) is communicated with suction valve (6).
3, two stroke IC engine according to claim 1 and 2, it is characterized in that: at piston (2) move up and down each once (i.e. two strokes), correspondingly in 360 ° of work cycle being finished of bent axle (4) rotation, when piston (2) arrives 60 ° of bent axles of before top dead center (4) corner, suction valve (6) is opened, when drawing together plug (2) arrival 58 ° of bent axles of before top dead center (4) corner, outlet valve (7) is closed, when piston (2) arrives 50 ° of bent axles of before top dead center (4) corner, suction valve (6) cuts out, when piston (2) arrived 30 ° to 10 ° bent axles of before top dead center (4) corner, fuel sprayed into combustion chamber of air cylinder (9) with vaporific by jet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230621 CN2316463Y (en) | 1997-12-15 | 1997-12-15 | Two-stroke IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230621 CN2316463Y (en) | 1997-12-15 | 1997-12-15 | Two-stroke IC engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2316463Y true CN2316463Y (en) | 1999-04-28 |
Family
ID=33943078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230621 Expired - Fee Related CN2316463Y (en) | 1997-12-15 | 1997-12-15 | Two-stroke IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2316463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678861A (en) * | 2016-07-08 | 2017-05-17 | 吴鹏 | Air inlet device of boiler combustion chamber |
| CN108223121A (en) * | 2018-03-26 | 2018-06-29 | 郏政广 | Two stroke engine |
-
1997
- 1997-12-15 CN CN 97230621 patent/CN2316463Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678861A (en) * | 2016-07-08 | 2017-05-17 | 吴鹏 | Air inlet device of boiler combustion chamber |
| CN106678861B (en) * | 2016-07-08 | 2019-05-10 | 广西靖西市一洲锰业有限公司 | A kind of boiler furnace inlet duct |
| CN108223121A (en) * | 2018-03-26 | 2018-06-29 | 郏政广 | 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 |