CN1175659A - Gas converted internal combustion engines - Google Patents
Gas converted internal combustion engines Download PDFInfo
- Publication number
- CN1175659A CN1175659A CN97117501A CN97117501A CN1175659A CN 1175659 A CN1175659 A CN 1175659A CN 97117501 A CN97117501 A CN 97117501A CN 97117501 A CN97117501 A CN 97117501A CN 1175659 A CN1175659 A CN 1175659A
- Authority
- CN
- China
- Prior art keywords
- pit
- engine
- cylinder head
- piston
- cylinder
- 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.)
- Granted
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A method for converting a diesel engine to an engine using gas fuel and a gas fuel engine improved by the method are provided. The method includes the steps of machining a combustion chamber limited by a dent on the top of the engine piston and an adjacent and offset dent on the cylinder cap and disposing a lighter to ignite. The width of the superposing part between the dent on the cylinder cap and the dent on the top of the piston is mainly one third of the width of the dent on the cylinder cap. The engine has an ignition device and a speed regulating device, the two devices are united to control the gas valve for supplying fuel to the engine and limit the rotate speed of the engine.
Description
Petrol engine and diesel engine are through suitably transferring using gases fuel to after the repacking.
Though the initial manufacture cost of diesel engine is than other petrol engine height of ad eundem, putative is the diesel engine long service life, and the maintaining cost is low, and this is considered to very attractive factor under the situation that high strength is used.
Petrol engine is changed into using gases fuel not to be needed motor is done big change, yet this transformation that realizes diesel engine then must be done bigger change to the cylinder head of motor, this is owing to the compression-ignition system transition need be become spark ignition system, and may need to change compression ratio.Speed control system also is necessary in addition.
Purpose of the present invention is exactly that a kind of method and apparatus that diesel engine can be changed over using gases fuel will be provided.
More further purpose of the present invention and advantage will be along with the following explanations of being done with way of example and are become more obvious.
The invention provides and a kind of diesel engine is changed over the method for using gases fuel, comprise and change or revise cylinder head with the size that strengthens the firing chamber and set up spark ignition.But this change is included in and processes by the pit of piston head on the motor and be adjacent the firing chamber that pit limited near biasing in cylinder head.
The biasing of cylinder head pit makes to have produced between cylinder head pit and the engine piston top pit and overlaps.
Lap between cylinder head pit and the piston head pit can be less than the width of cylinder head pit.
The width of lap can be equivalent to 1/3rd of cylinder head pit width substantially between cylinder head pit and the piston head pit.
The method can be used for single-cylinder engine or multicylinder engine.
The method can further comprise and be equipped with ignition mechanism and arrangements for speed regulation, and they join together to control a gas valve to the motor fueling with the limiting engine rotating speed.
According to a further aspect in the invention, described transformed reciprocating engine have one by the pit at engine piston top and in engine cylinder cap one adjoining but the firing chamber that pit limited of biasing.
The biasing of cylinder head pit makes to have produced between cylinder head pit and the engine piston top pit and overlaps.
Lap between cylinder head pit and the piston crater can be less than the width of cylinder head pit.
The width of lap is equivalent to 1/3rd of cylinder head pit width substantially between cylinder head pit and the piston head pit.
This altered piston engine can have one or more cylinders.
This transformed piston engine can comprise ignition mechanism and arrangements for speed regulation, and they join together to control one to the gas valve of motor fueling and the rotating speed of limiting engine.
The piston head pit is so-called " Omega " shape.
The shape of cylinder head pit is a hemisphere substantially.
Further aspect of the present invention will along with following only by way of example and the explanation of being done with reference to the accompanying drawings and become more obvious, wherein
Fig. 1 is the sectional schematic diagram according to the cylinder head after engine piston body of the present invention and the change.
Fig. 2 is the schematic top view of structure shown in Figure 1.
Fig. 3 has shown the overlapping situation of engine cylinder cap pit and engine piston pit.
Fig. 4 is a presentation graphs 1, the speed control system of Fig. 2 and improved motor shown in Figure 3 and the skeleton diagram of ignition system.
Fig. 5 is the schematic representation that is provided with of speed regulator output of the present invention and gas valve.
See figures.1.and.2, comprise according to motor transformation of the present invention and change or revise cylinder head as shown in arrow 1, so that the firing chamber of an increasing to be provided, this firing chamber generally represents with arrow 2, limited by the head 3 and the pit on cylinder head 15 of piston 4.
A cell 6 provides the fitting seat of spark plug 7 near pit 5, be exactly traditional inlet and exhaust valve 8 and 9 in addition.The part of cylinder head cooling jacket is represented with numeral 10.
As can be seen from the figure the pit 5 of cylinder head 1 be substantially hemispheric and with the head 3 of piston 4 on " Omega " shape pit 11 overlaids (shown in legend). Pit 5 and 11 shape and size can change, and the shape shown in the figure only is for example.
Fig. 3 has represented according to pit 5 and 11 peripheral situation on the cylinder head of the transformed motor of the present invention and on the piston head.
Can reach good fuel economy when by following arrangements: width is that the pit 5 of D has one section overlap distance D with pit 11
1, D
1Also littler than half of D, D preferably
1Approximately be 1/3rd of D.
Fig. 4 and Fig. 5 have represented that a kind of of speed control system of the present invention and ignition system may form.This system comprises that an engine speed and 22, one vacuum advance controlling devices 24 of 21, one speed regulator output units of 20, one rotating speed-electric pressure converters of flywheel position transducer and a speed shift to an earlier date controlling device 25.
Speed regulator output unit 22 control gas valves 23, device 24 and 25 and the spark coil 27 of SPOUT Spark Output 26 and engine spark plug can carry out information exchange.
Speed regulator output unit 22 is noted rotating speed voltage, and comparator 28 and a relay have information exchange and remove to control gas valve 23 by a solenoid valve.So the input of combustion gas just is subjected to the control of arrangements for speed regulation.
International discharge regulation requires to force to use catalyst on internal-combustion engine.
Carbon monoxide in the combustion gas must all remain on below a certain limit value under a series of operating conditionss at motor when arriving transducer.Traditional way is to insert an electronic control system to realize this limitation standard between engine fuel supply system and firing chamber.Because the burning of the fuel of described transformed motor is so efficient, does not therefore need this electric control device to remove to control carbon monoxide content.
More than feature of the present invention only is described with way of example, but should correct understanding be, do not leave of the present invention will the situation of restricted portion in claims under, might do some modification or augment the content of invention.
Claims (12)
1. one kind changes over the method for using gases fuel with diesel engine, comprises changing or revise cylinder head with the size that strengthens the firing chamber and set up spark ignition.This change comprise process one by the pit at engine piston top and adjoining on cylinder head but the firing chamber that pit limited of biasing, it is characterized in that the biasing of cylinder head pit makes to have produced between cylinder head pit and the engine piston top pit and overlaps.
2. in accordance with the method for claim 1, it is characterized in that the lap between cylinder head pit and the piston head pit is less than the width of cylinder head pit.
3. in accordance with the method for claim 2, it is characterized in that the width of the lap between cylinder head pit and the piston head pit is equivalent to 1/3rd of cylinder head pit width substantially.
4. according to the described method of arbitrary claim in the claim 1 to 3, it is characterized in that can be used for single cylinder or multicylinder engine.
5. according to the described method of arbitrary claim in the claim 1 to 4, it is characterized in that having ignition mechanism and arrangements for speed regulation, they join together to control to the gas valve of motor fueling and the rotating speed of limiting engine.
6. gaseous propellant engine, have by engine piston top pit and be adjacent the firing chamber that pit limited in engine cylinder cap near but biasing, it is characterized in that the biasing of cylinder head pit makes to have produced between cylinder head pit and the engine piston top pit and overlaps.
7. according to the described transformed piston engine of claim 6, it is characterized in that the lap between cylinder head pit and the piston head pit is less than the width of cylinder head pit.
8. according to the described transformed piston engine of claim 7, it is characterized in that the width of the lap between cylinder head pit and the piston head pit is equivalent to 1/3rd of cylinder head pit width substantially.
9. according to the described transformed piston engine of arbitrary claim in the claim 6 to 8, it is characterized in that described motor has a cylinder or a plurality of cylinder.
10. according to the described transformed piston engine of arbitrary claim in the claim 6 to 9, it is characterized in that comprising ignition mechanism and arrangements for speed regulation, they join together to control to the gas valve of motor fueling and the rotating speed of limiting engine.
11., it is characterized in that the pit of piston head is so-called " Omega " shape according to the described transformed piston engine of arbitrary claim in the claim 6 to 10.
12., it is characterized in that the pit in the cylinder head is semi-spherical shape substantially according to the described transformed piston engine of arbitrary claim in the claim 6 to 11.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ299267 | 1996-08-30 | ||
| NZ299267A NZ299267A (en) | 1996-08-30 | 1996-08-30 | Diesel engine conversion to run on gas: well in piston and offset chamber in head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1175659A true CN1175659A (en) | 1998-03-11 |
| CN1091489C CN1091489C (en) | 2002-09-25 |
Family
ID=19925916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97117501A Expired - Fee Related CN1091489C (en) | 1996-08-30 | 1997-08-27 | Gas converted internal combustion engines |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1091489C (en) |
| NZ (1) | NZ299267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536502A (en) * | 2010-12-15 | 2012-07-04 | 合肥信朗动力科技有限公司 | Method for transforming diesel engine to gasoline engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP581098A0 (en) * | 1998-09-11 | 1998-10-01 | Ecotrans Pty. Limited | Engine conversions |
| AU768769B2 (en) * | 1998-09-11 | 2004-01-08 | Advanced Vehicle Technologies Pty Limited | Engine conversions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703886A (en) * | 1970-11-09 | 1972-11-28 | Julius E Witzky | Pumpless stratified charge gas engine |
-
1996
- 1996-08-30 NZ NZ299267A patent/NZ299267A/en unknown
-
1997
- 1997-08-27 CN CN97117501A patent/CN1091489C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536502A (en) * | 2010-12-15 | 2012-07-04 | 合肥信朗动力科技有限公司 | Method for transforming diesel engine to gasoline engine |
| CN102536502B (en) * | 2010-12-15 | 2013-12-25 | 合肥宝发动力技术有限公司 | Method for transforming diesel engine to gasoline engine |
Also Published As
| Publication number | Publication date |
|---|---|
| NZ299267A (en) | 1998-04-27 |
| CN1091489C (en) | 2002-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PEIXIN NATURAL GAS EQUIPMENT CO., LTD. Free format text: FORMER OWNER: TRANSPORT FUEL SYSTEMS LTD. Effective date: 20030516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030516 Address after: Hongkong, China Patentee after: Pui sing natural gas equipment Co., Ltd. Address before: Oakland, New Zealand Patentee before: Transport Fuel Systems Ltd. |
|
| 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 |