CN2067760U - Internal combustion engine operating on gaseous fuel - Google Patents
Internal combustion engine operating on gaseous fuel Download PDFInfo
- Publication number
- CN2067760U CN2067760U CN 90200483 CN90200483U CN2067760U CN 2067760 U CN2067760 U CN 2067760U CN 90200483 CN90200483 CN 90200483 CN 90200483 U CN90200483 U CN 90200483U CN 2067760 U CN2067760 U CN 2067760U
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- CN
- China
- Prior art keywords
- gas
- combustion engine
- valve
- gaseous fuel
- oil
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- Expired - Lifetime
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- Lubrication Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an internal combustion engine using gaseous fuel, which uses inflammable gas of hydrogen gas, high hydrogen coking gas, etc., as fuel. The internal combustion engine using gaseous fuel comprises a crank connecting rod mechanism, a gas distribution mechanism, a fuel supply system, a lubricating system, a cooling system, etc. The internal combustion engine using gaseous fuel is characterized in that the top portion of a piston is provided with the combustion chamber of a double-annular cavity, and the inflammable gas is provided by a gas valve in a timing mode. The internal combustion engine using gaseous fuel has the advantages that the internal combustion engine using gaseous fuel uses the gas to replace oil to moderate the supply and demand contradiction of the oil, and adopts thin mixing gas to be combusted, which can improve compression ratio and prevent explosion.
Description
The utility model relates to a kind of internal-combustion engine.
After nineteen twenties, because the development and use of oil, diesel engine and the petrol engine ， And that obtained developing by leaps and bounds is gradually improved.After entering nineteen seventies, oil crisis is recognized people clear-headedly, and limited petroleum resources can't satisfy the needs of increasing internal-combustion engine for a long time.
The purpose of this utility model is to provide a kind of internal-combustion engine that uses gaseous fuel in order to overcome above-mentioned deficiency, with the fuel of inflammable gass such as hydrogen, high hydrogen coking gas, water gas as internal-combustion engine, to relax the imbalance between supply and demand of oil.
Description of the present utility model is as follows, the internal-combustion engine that uses gaseous fuel has crankshaft ﹠ connecting, distribution device, fuel supply system, lubrication system, the cooling system of internal-combustion engine equally, just adopt inflammable gas to make fuel, thus the structure of the shape of corresponding change combustion chambers of internal combustion engines and fuel supply system.The fire extend of hydrogen and high hydrogen coking gas is wide, and the gas of hydrogen content 4～75% all can burn, and velocity of propagation of flame is fast especially during burning, is about 4～5 times of gasoline.Velocity of propagation of flame is too fast, and easily detonation can cause the chamber temperature height, inlet and outlet door and spark plug heat load height, easy deformation is the velocity of propagation of gas flames such as the hydrogen that slows down, high hydrogen coking gas, dual torus is made in the firing chamber, to form a plurality of combustion spaces.Open an annular cavity at the piston head of aiming at spark plug or oil nozzle position, be called primary combustion chamber, around annular cavity, an annular cavity is arranged again, be called main combustion chamber, 2～8 passages that wait branch to distribute are arranged between two annular cavity.When plug ignition or oil nozzle oil spout were ignited, inflammable gas at first in the annular cavity burning of primary combustion chamber, continued you, and flame is entered in the annular cavity in the main combustion chamber by passage and burns away.
The supply of inflammable gass such as hydrogen, high hydrogen coking gas, water gas is achieved in that inflammable gass such as hydrogen, high hydrogen coking gas, water gas are contained in the gas storage barrel, and the supply of inflammable gas is controlled by the unlatching of gas valve.The valve rod card of gas valve has pressure spring, and gas valve is in normally off.The time requirement in accordance with regulations of the hydraulic oil of internal-combustion engine oil pump acts on the driving oil cylinder of the utility model fuel supply system, oil cylinder plunger and gas valve boom end contact, under hydraulic pressure, overcome the effect of pressure spring, gas valve is opened, inflammable gas is introduced the cylinder cap inner chamber by the pipeline of special setting, tentatively mixes with air outside intake valve, enters the firing chamber by intake valve then.The unlatching of intake valve is still controlled by original cam mechanism.
Use hydrogen, high hydrogen coking gas, inflammable gass such as water gas are made the internal-combustion engine of fuel, sealing requirements to valve and valve seat insert is very high, the utility model is oil-collecting cover of fixed installation on the close position of valve valve of valve stem, between oil-collecting cover and the valve stem grease channel is arranged, lubricant oil is pooled in the oil-collecting cover in the valve guide bushing, enter between valve and the valve seat by the grease channel in the oil-collecting cover, on the position of valve valve, form one deck oil film, to guarantee that valve seals reliably, prevent that the free radical or the scorching hot has channeling that produce from going into suction tude when in-cylinder combustion.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Figure is the combustion-chamber shape of the internal-combustion engine that uses gaseous fuel of the present utility model and the sectional view of inflammable gas supply system.Among the figure: 1-piston, 2-just fire the chamber, 3-main combustion chamber, 4-exhaust valve, 5-oil-collecting cover, 6-spark plug or oil injecting nozzle, 7-intake valve, 8-inflammable gas suction tude, 9-air intake duct, the 10-gas valve, 11-driving oil cylinder, 12-pressure spring, 13-gasoline tank.
Embodiment makes like this: the high hydrogen coking gas with hydrogeneous 50% is made combustible fuel gas, is contained in the gas storage barrel (13) 500 liters of gas storage barrel volumes.The supply of high hydrogen coking gas is controlled by gas valve (10).Gas valve (10) is closed the pipeline of combustible gas under the effect of pressure spring (12).When the hydraulic oil time requirement in accordance with regulations of oil pump acts on driving oil cylinder (11), overcome the elastic force of pressure spring (12), breakdown gas valve (10), high hydrogen coking gas enters the cylinder head inner chamber by inflammable gas suction tude (8), and the air that air intake duct (9) is come in tentatively mixes, and enters the firing chamber by intake valve (7).Intake valve (7) and exhaust valve (4) are still by original cam mechanism time opening and closing.Piston (1) diameter is 135 millimeters, on the cylinder head of aiming at the piston middle position spark plug (6) is housed, and has the first combustion chamber (2) of annular cavity in the piston head central authorities of aiming at spark plug (6), just fires 35 millimeters of the diameter phi of chamber (2), dark 12 millimeters.The annular cavity internal diameter that just fires chamber (2) one annular cavity main combustion chamber (3) main combustion chamber (3) is arranged again on every side in annular cavity is 50 millimeters of φ, external diameter is 110 millimeters of φ, dark 20 millimeters, just firing between chamber (2) and the main combustion chamber (3) has 4 passages to communicate, 8 millimeters of channel diameter φ.When compression stroke at the end, spark plug (6) igniting makes high hydrogen coking gas earlier in first combustion chamber (2) internal combustion, flame enters in the main combustion chamber (3) by the passage between two annular cavity and burns away, does work.Make the internal-combustion engine of fuel with inflammable gas, to the sealing requirements of valve and valve seat insert requirement height than petrol engine, diesel engine, a fixed installation oil-collecting cover (5) on the close valve stem of valve valve, between oil-collecting cover and the valve stem grease channel is arranged, lubricant oil in the valve guide bushing is pooled to the oil-collecting cover, and (5) Nei ， And enter between valve and the valve seat insert by oil leab, form one deck oil film, improve sealability, the free radical or the scorching hot has channeling that produce when preventing to burn are gone into suction tude.
The advantage of the internal combustion engine of operating on gaseous fuel of the present utility model: for oil, relax contradiction between oil supply and demand with gas; Adopt rare mixed combustion, can improve compression ratio, prevent detonation, reduce the thermic load of the parts such as valve system, spark plug, piston, cylinder cap.
Claims (4)
1, a kind of internal-combustion engine that uses gaseous fuel, be by crankshaft ﹠ connecting, distribution device, fuel supply system, lubrication system, compositions such as cooling system, it is characterized in that using hydrogen, high hydrogen coking gas, after inflammable gass such as water gas and the air mixing as the fuel of internal-combustion engine, the supply of inflammable gas is controlled by gas valve (10), import the cylinder cap inner chamber by inflammable gas suction tude (8), with enter the firing chamber by intake valve after the air mixing, open an annular cavity at the piston head of aiming at spark plug or oil nozzle position and just fire chamber (2), in first combustion chamber (2) an annular cavity main combustion chamber (3) is arranged again on every side, 2-8 bar passage is arranged between two annular cavity.
2, the internal-combustion engine that uses gaseous fuel according to claim 1 is characterized in that near on the valve stem of valve valve oil-collecting cover (5) being housed, and between oil-collecting cover and the valve stem grease channel is arranged.
3, the internal-combustion engine that uses gaseous fuel according to claim 1, the passage between two annular cavity of piston head are that five equilibrium distributes.
4, the internal-combustion engine that uses gaseous fuel according to claim 1 is characterized in that the valve rod end of gas valve and oil cylinder plunger contact, and the valve rod card has pressure spring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200483 CN2067760U (en) | 1990-01-10 | 1990-01-10 | Internal combustion engine operating on gaseous fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200483 CN2067760U (en) | 1990-01-10 | 1990-01-10 | Internal combustion engine operating on gaseous fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2067760U true CN2067760U (en) | 1990-12-19 |
Family
ID=4882264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90200483 Expired - Lifetime CN2067760U (en) | 1990-01-10 | 1990-01-10 | Internal combustion engine operating on gaseous fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2067760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403406A (en) * | 2011-03-01 | 2013-11-20 | 马勒国际公司 | Piston for an internal combustion engine |
| EP2718548A1 (en) * | 2011-06-08 | 2014-04-16 | Bergen Engines AS | Valve system for a gas engine |
-
1990
- 1990-01-10 CN CN 90200483 patent/CN2067760U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403406A (en) * | 2011-03-01 | 2013-11-20 | 马勒国际公司 | Piston for an internal combustion engine |
| EP2718548A1 (en) * | 2011-06-08 | 2014-04-16 | Bergen Engines AS | Valve system for a gas engine |
| EP2718548A4 (en) * | 2011-06-08 | 2014-12-24 | Bergen Engines As | Valve system for a gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |