GB2366326A - Six-stroke cycle for internal combustion engines - Google Patents
Six-stroke cycle for internal combustion engines Download PDFInfo
- Publication number
- GB2366326A GB2366326A GB0021029A GB0021029A GB2366326A GB 2366326 A GB2366326 A GB 2366326A GB 0021029 A GB0021029 A GB 0021029A GB 0021029 A GB0021029 A GB 0021029A GB 2366326 A GB2366326 A GB 2366326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stroke
- engine
- valve
- valves
- cycle
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 78
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B75/021—Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A six-stroke cycle for a petrol or diesel internal combustion engine, the engine having at least one cylinder 34 with one piston 6 and at least three engine cylinder valves 2, 4 and 16 for petrol engines, figures 1 to 6, or at least two engine cylinder valves 2, 4 for diesel engines, figures 7 to 12. The six-stroke cycle comprises of three downward movements and three upward movements of any one piston 6. First stroke: induction of air or air/fuel mixture; second stroke: compression; third stroke: expansion (working stroke); fourth stroke: exhaust; fifth stroke, fig. 5: induction of air only, and sixth stroke: exhaust of air and any remaining gases from the combustion chamber. The six-stroke cycle is equal to thee turns of the engine which is equal to thee turns of the crankshaft. Because strokes five and six use air and not fuel, this means an increase in fuel economy, and lower exhaust emissions. The valve timing arrangements are arranged to open and close all the engine cylinder valves within the appropriate timing constraints of the six-stroke cycle.
Description
<Desc/Clms Page number 1>
IMPROVEMENTS TO INTERNAL COMBUSTION ENGINES This invention relates to internal combustion engines and in particular the strokes of the engine cycle.
It is known that the four strokes of an internal combustion engine are stroke one, induction stroke, stroke two, compression stroke. Stroke three, power stroke, and stroke four, exhaust stroke. Stroke one induction stroke, the inlet valve is open, the exhaust valve closed. The piston descends, drawing a flow of air and fuel mixture into the combustion chamber, soon after this stroke, the inlet valve is closed. Stroke two compression stroke, both inlet and exhaust valves are closed. The rising piston compresses the air and fuel mixture in the combustion chamber. Stroke three power stroke, both valves remain closed. A spark from the spark-plug ignites the compressed air and fuel mixture in the combustion chamber. Expansion of burning gas drives the piston down. Just before the end of this stroke the exhaust valve starts to open. Stroke four exhaust stroke, the inlet valve is closed, and exhaust valve open. The piston rises to expel burnt gases from the combustion chamber. Just before the end of this stroke the inlet valve starts to open, exhaust valve closing. Then the cycle starts again. The four strokes are equal to two complete turns of the crankshaft, and one complete turn of the camshaft.
The expulsion of burnt gases happens every forth stroke any reduction in these gases will be beneficial, and result in lower exhaust emissions for a cleaner environment.
It is an object of the invention to provide an improved cycle for an internal combustion engine petrol or diesel,
<Desc/Clms Page number 2>
According to the present invention there is provided A six-stroke cycle for an internal combustion engine petrol or diesel, the said engine having at least one cylinder, wherein the or each cylinder having one piston, and at least two engine cylinder valves for diesel engines. At least three engine cylinder valves for petrol engines. The engine cylinder valves being operated by one or more camshafts. The or each camshaft being arranged to open and close each valve within the appropriate timing constraint of the six-stroke cycle. Each stroke of the six-stroke cycle is equivalent to a downward or an upward movement of any one piston of any one cylinder; therefore the six-stroke cycle comprises of three upward and three downward movements of a piston. The six-stroke cycle is also equivalent to three complete turns of the engine, which is equivalent to three complete turns of the crankshaft. Every valve of each cylinder opening and closing at different times, although two valves can be slightly open at once (valve overlap). The six strokes in order are stroke one piston moving down, drawing fuel and air mixture into the combustion chamber, with diesel engines air only being drawn into the combustion chamber. Stroke two piston moving up, the fuel and air mixture is compressed in the combustion chamber, with diesel engines air only being compressed in the combustion chamber. Stroke three piston moving down, the ignited fuel and air mixture forces the piston down. Stroke four piston moving up, the burnt gases are expelled from the combustion chamber. Stroke five piston moving down, drawing air only into the combustion chamber. Stroke six piston moving up, expelling air and any remaining burnt gases from the combustion chamber, then the cycle begins again.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: - Figure 1 is a cross-sectional view of a single cylinder petrol internal combustion engine, the exhaust valve is closed one inlet valve is closed one inlet valve is open, and the piston is descending.
Figure 2 is a cross-sectional view of a single cylinder petrol internal combustion engine, all three valves are closed, and the piston is rising.
Figure 3 is a cross-sectional view of a single cylinder petrol internal combustion engine, all three valves are closed, and the piston is descending.
<Desc/Clms Page number 3>
Figure 4 is a cross-sectional view of a single cylinder petrol internal combustion engine, both inlet valves are closed the exhaust valve is open, and the piston is rising.
Figure 5 is a cross-sectional view of a single cylinder petrol internal combustion engine, the exhaust valve is closed one inlet valve is closed one inlet valve is open, and the piston is descending.
Figure 6 is a cross-sectional view of a single cylinder petrol internal combustion engine, both inlet valves are closed the exhaust valve is open, and the piston is rising.
Figure 7 is a cross-sectional view of a single cylinder diesel internal combustion engine, the exhaust valve is closed the inlet valve is open and the piston is descending.
Figure 8 is a cross-sectional view of a single cylinder diesel internal combustion engine, the inlet and exhaust valves are closed and the piston is rising.
Figure 9 is a cross-sectional view of a single cylinder diesel internal combustion engine, the inlet and exhaust valves are closed and the piston is descending.
Figure 10 is a cross-sectional view of a single cylinder diesel internal combustion engine, the inlet valve is closed the exhaust valve is open and the piston is rising.
Figure 11 is a cross-sectional view of a single cylinder diesel internal combustion engine, the exhaust valve is closed the inlet valve is open and the piston is descending.
Figure 12 is a cross-sectional view of a single cylinder diesel internal combustion engine, the inlet valve is closed the exhaust valve is open and the piston is rising. Referring to figures I to 6 illustrating the six-stroke cycle for petrol engines in accordance with the invention, in which figure I shows, stroke one. The inlet valve (16) is closed the exhaust valve (4) is closed the inlet valve (2) is open. The piston (6) descends in the cylinder (34) drawing a flow of fuel and air mixture (8) into the combustion chamber. (10) Soon after this stroke, the inlet valve (2) is closed.
Figure 2 shows stroke two. Both inlet valves, (2) and (16) and the exhaust valve, (4) are closed. The rising piston (6) compresses the fuel and air mixture (8) in the combustion chamber. (10) Figure 3 shows stroke three. Both inlet valves, (2) and (16), and the exhaust valve, (4)
<Desc/Clms Page number 4>
remain closed. A spark from the spark plug (36) ignites the compressed fuel and air mixture in the combustion chamber. (10) Expansion of burning gas (22) drives the piston (6) down, just before the end of this stroke the exhaust valve (4) starts to open.
Figure 4 shows stroke four. Both inlet valves (2) and (16) are closed the exhaust valve (4) is open the piston (6) rises to expel burnt gases (24) from the combustion chamber. (10) Soon after this stroke the exhaust valve (4) closes.
Figure 5 shows stroke five. The inlet valve (2) is closed the exhaust valve (4) is closed the inlet valve (16) is open the piston (6) descends drawing a flow of air (26) into the combustion chamber (10) soon after this stroke the inlet valve (16) closes.
Figure 6 shows stroke six. Both inlet valves (2) and (16) are closed the exhaust valve (4) is open the piston (6) rises to expel air (26) from the combustion chamber. (10) Soon after this stroke the exhaust valve (4) closes. Then the cycle starts again.
Reference is now to figures 7 to 12 illustrating the six-stroke cycle for diesel engines in accordance with the invention in which Figure 7 shows, stroke one. The exhaust valve (4) is closed the inlet valve (2) is open. The piston (6) descends in the cylinder (34) drawing a flow of air (26) into the combustion chamber. (10) Soon after this stroke, the inlet valve (2) is closed.
Figure 8 shows stroke two. The inlet valve, (2) and exhaust valve (4) are closed. The rising piston (6) compresses the air (26) in the combustion chamber. (10) Figure 9 shows stroke three. The inlet valve, (2) and exhaust valve (4) remain closed. Fuel (28) is squirted into the combustion chamber (10) by means of the diesel injector, (30) to vaporise in hot air. Heat ignites the mixture in the combustion chamber (10) Expansion of burning gas (22) drives the piston (6) down.
<Desc/Clms Page number 5>
Figure 10 shows stroke four. The inlet valve (2) is closed the exhaust valve (4) is open the piston (6) rises to expel burnt gases (24) from the combustion chamber (10) Soon after this stroke the exhaust valve (4) closes.
Figure I I shows stroke five. The exhaust valve (4) is closed the inlet valve (2) is open the piston (6) descends drawing a flow of air (26) into the combustion chamber (10) soon after this stroke the inlet valve (2) closes.
Figure 12 shows stroke six. The inlet valve (2) is closed the exhaust valve (4) is open the piston (6) rises to expel air (26) from the combustion chamber (10) soon after this stroke the exhaust valve (4) closes. Then the cycle starts again.
It will be appreciated that the described system can be applied to any internal combustion engine having at least one piston and cylinder incorporating at least two valves per cylinder for diesel engines and at least three valves per cylinder for petrol engines. One or more camshafts, and the said camshafts operating the valves within the appropriate timing constraints of the six-stroke cycle. For example opening and closing the valves at the right time and in some cases opening and closing the valves twice in the said six-stroke cycle. Because stroke five draws air into the combustion chamber and stroke six expels air from the combustion chamber these two strokes are cleaning the combustion chamber of burnt gases and unburned fuel. So that ignition of the fuel and air mixture in the next power stroke (stroke three) of the next cycle is improved.
Because there is a stroke that expels air from the combustion chamber this will mean lower exhaust emissions.
<Desc/Clms Page number 6>
Because stroke five draws air into the combustion chamber and stroke six expels air from the combustion chamber this means that the engine cylinder valves will operate at a lower temperature because of the air passing over them thus an increase in the valves lifetime.
With diesel engines it will be easier four the engine to rotate the diesel pump, because the diesel pump will rotate at a slower speed than a conventional diesel engines diesel pump to keep the diesel pump timing correct within the six-stroke cycle. For example a conventional diesel pump will inject diesel into the or each combustion chamber once in every fourth stroke which is equal to two complete turns of the crankshaft. With the six-stroke cycle engine, the diesel pump injects diesel into the or each combustion chamber once in every sixth stroke which is equal to three complete turns of the crankshaft.
Because stroke five and stroke six use air and not fuel this means an increase in fuel economy.
Thus in accordance with the invention, there is provided an internal combustion engine, petrol or diesel comprising a six-stroke cycle, for improving fuel economy, lowering exhaust emissions, longer life for the engine cylinder valves, and less mechanical wear on the diesel PUMP.
<Desc/Clms Page number 7>
Claims (8)
- CLAIMS 1. A six-stroke cycle for an internal combustion engine petrol or diesel, the said engine having at least one cylinder, wherein the or each cylinder having one piston, and at least two engine cylinder valves for diesel engines. At least three engine cylinder valves for petrol engines. The engine cylinder valves being operated by one or more camshafts. The or each camshaft being arranged to open and close each valve within the appropriate timing constraint of the six-stroke cycle. Each stroke of the six-stroke cycle is equivalent to a downward or an upward movement of any one piston of any one cylinder; therefore the six- stroke cycle comprises of three upward and three downward movements of any one piston. The six-stroke cycle is also equivalent to three complete turns of the engine, which is equivalent to three complete turns of the crankshaft. Every valve of each cylinder opening and closing at different times, although two valves can be slightly open at once (valve overlap). The six strokes in order are stroke one piston moving down, drawing fuel and air mixture into the combustion chamber, with diesel engines air only being drawn into the combustion chamber. Stroke two piston moving up, the fuel and air mixture is compressed in the combustion chamber, with diesel engines air only being compressed in the combustion chamber. Stroke three piston moving down, the ignited fuel and air mixture forces the piston down. Stroke four piston moving up, the burnt gases are expelled from the combustion chamber. Stroke five piston moving down, drawing air only into the combustion chamber. Stroke six piston moving up, expelling air from the combustion chamber, then the cycle begins again.
- 2. An internal combustion engine petrol or diesel comprising a six-stroke cycle as claimed in claim 1.
- 3. A six-stroke cycle for an internal combustion engine petrol or diesel as claimed in claim I and claim 2, the said engine having at least one cylinder, wherein the or each cylinder having one piston, and two, three, or four engine cylinder valves. If two valves per cylinder there is one inlet valve, and one exhaust valve, which is for diesel engines but more valves can be used if preferred. In this case the inlet valve allows air only into the combustion<Desc/Clms Page number 8>chamber when the valve is open, and at a certain point in the engine cycle. The exhaust valve allows burnt gases and air out of the combustion chamber when the valve is open, and at a certain point in the engine cycle. The valve timing arrangement being arranged to open and close the inlet valve and exhaust valve twice in the six-stroke cycle and all valves opening and closing at different times, although both valves can be slightly open at once (valve overlap). If three valves per cylinder are used as preferred for petrol engines there are two inlet valves, and one exhaust valve. One of the two inlet valves allows air and fuel mixture into the combustion chamber when the valve is open and at a certain point in the engine cycle. The other inlet valve allows air only into the combustion chamber when the valve is open and at a certain point in the engine cycle. The exhaust valve allows burnt gases and air out of the combustion chamber when the valve is open and at a certain point in the engine cycle. The valve timing arrangement being arranged to open and close both inlet valves once In the six-stroke cycle and open and close the exhaust valve twice in the six-stroke cycle and all valves opening and closing at different times, although two valves can be slightly open at once (valve overlap). If four valves per cylinder are used also preferred for petrol engines their are two inlet valves, and two exhaust valves. One of the two inlet valves allows air and fuel mixture into the combustion chamber when the valve is open, and at a certain point in the engine cycle. The other inlet valve allows air only into the combustion chamber when the valve is open, and at a certain point in the engine cycle. One of the two exhaust valves allows burnt gases out of the combustion chamber when the valve is open and at a certain point in the engine cycle. The other exhaust valve allows air out of the combustion chamber when the valve is open and at a certain point in the engine cycle. The valve timing arrangement being arranged to open and close each valve once in the six-stroke cycle and all valves opening and closing at different times, although two valves can be slightly open at once (valve overlap).
- 4. A six-stroke cycle for an internal combustion engine petrol or diesel as claimed in any preceding claim, wherein the said engine having one or more cylinders, each cylinder having two, three, or four valves, and each valve opening and closing at different times.
- 5. A six-stroke cycle for an internal combustion engine petrol or diesel as claimed in any preceding claim, wherein the six-stroke cycle is equal to three complete turns of the<Desc/Clms Page number 9>crankshaft, three upward and downward movements of any one piston, and one complete turn of one or more camshafts.
- 6. A six-stroke cycle for an internal combustion engine as claimed in any preceding claim, wherein if a diesel engine the six-stroke cycle is equal to three turns of the engine, which is equal to one turn of the diesel pump.
- 7. A six-stroke cycle for an internal combustion engine petrol or diesel as claimed in any preceding claim, the said engine having at least one camshaft, wherein the or each camshaft opening and closing the engine cylinder valves within the appropriate timing constraints of the six-stroke cycle.
- 8. A six-stroke cycle for an internal combustion engine petrol or diesel substantially described herein with reference to figures 1-12 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0021029A GB2366326A (en) | 2000-08-29 | 2000-08-29 | Six-stroke cycle for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0021029A GB2366326A (en) | 2000-08-29 | 2000-08-29 | Six-stroke cycle for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0021029D0 GB0021029D0 (en) | 2000-10-11 |
| GB2366326A true GB2366326A (en) | 2002-03-06 |
Family
ID=9898341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0021029A Withdrawn GB2366326A (en) | 2000-08-29 | 2000-08-29 | Six-stroke cycle for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2366326A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7726268B2 (en) * | 2008-10-20 | 2010-06-01 | Howard Kelem | Six stroke internal combustion engine and method of operation |
| CN101791942A (en) * | 2010-03-04 | 2010-08-04 | 栾继胜 | Configuration, layout and control of hybrid electric drive system |
| GB2476852A (en) * | 2010-09-16 | 2011-07-13 | Anthony Edgar Blackburn | Variable inlet valve actuation arrangement for a six-stroke IC engine |
| US20140158068A1 (en) * | 2012-12-12 | 2014-06-12 | Caterpillar Inc. | Six-Stroke Engine System with Blowdown Exhaust System |
| GB2530085A (en) * | 2014-09-12 | 2016-03-16 | Michael Willoughby Essex Coney | An internal combustion engine with a novel 4-stroke cycle and optional compressed air energy storage |
| CN106321235A (en) * | 2016-08-30 | 2017-01-11 | 潘晓德 | Six-stroke gasoline engine without ignition system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB214697A (en) * | 1923-01-18 | 1924-04-22 | George Devancourt Westropp | Improvements in internal combustion engines |
| GB526310A (en) * | 1939-03-13 | 1940-09-16 | George Henry Taylor | Improvements relating to air cooled internal combustion engines |
| GB1563770A (en) * | 1977-09-24 | 1980-04-02 | Mezaki S | Internal combustion engine operating cycles |
| JPS5735120A (en) * | 1980-08-11 | 1982-02-25 | Moriyuki Shima | Six-stroke reciprocating engine |
| US4367700A (en) * | 1981-01-19 | 1983-01-11 | Hotspur International Corporation, Inc. | Apparatus for insuring the complete burning of fuel in a six cycle combustion engine |
| JPS5818523A (en) * | 1981-07-23 | 1983-02-03 | Yamaha Motor Co Ltd | Six-cycle engine |
| FR2547625A1 (en) * | 1983-06-17 | 1984-12-21 | Roumieux Jean Claude | Six-stroke engine device with three valves per cylinder |
| DE3324137A1 (en) * | 1983-07-05 | 1985-07-18 | Emil 7500 Karlsruhe Kovacs | Six-stroke engine |
| DE3534941A1 (en) * | 1985-10-01 | 1987-04-09 | Popan Viorel | Reciprocating piston internal combustion engine operating on the spark ignition or diesel principle in a six-stroke cycle |
| JPS63134816A (en) * | 1986-11-13 | 1988-06-07 | Hiroyasu Hayakawa | Six-cycle engine and air cooling engine |
| GB2210666A (en) * | 1987-10-07 | 1989-06-14 | Honda Motor Co Ltd | Six-stroke engine |
| JPH09273430A (en) * | 1996-04-08 | 1997-10-21 | Osamu Nakada | Six-cycle gasoline engine |
-
2000
- 2000-08-29 GB GB0021029A patent/GB2366326A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB214697A (en) * | 1923-01-18 | 1924-04-22 | George Devancourt Westropp | Improvements in internal combustion engines |
| GB526310A (en) * | 1939-03-13 | 1940-09-16 | George Henry Taylor | Improvements relating to air cooled internal combustion engines |
| GB1563770A (en) * | 1977-09-24 | 1980-04-02 | Mezaki S | Internal combustion engine operating cycles |
| JPS5735120A (en) * | 1980-08-11 | 1982-02-25 | Moriyuki Shima | Six-stroke reciprocating engine |
| US4367700A (en) * | 1981-01-19 | 1983-01-11 | Hotspur International Corporation, Inc. | Apparatus for insuring the complete burning of fuel in a six cycle combustion engine |
| JPS5818523A (en) * | 1981-07-23 | 1983-02-03 | Yamaha Motor Co Ltd | Six-cycle engine |
| FR2547625A1 (en) * | 1983-06-17 | 1984-12-21 | Roumieux Jean Claude | Six-stroke engine device with three valves per cylinder |
| DE3324137A1 (en) * | 1983-07-05 | 1985-07-18 | Emil 7500 Karlsruhe Kovacs | Six-stroke engine |
| DE3534941A1 (en) * | 1985-10-01 | 1987-04-09 | Popan Viorel | Reciprocating piston internal combustion engine operating on the spark ignition or diesel principle in a six-stroke cycle |
| JPS63134816A (en) * | 1986-11-13 | 1988-06-07 | Hiroyasu Hayakawa | Six-cycle engine and air cooling engine |
| GB2210666A (en) * | 1987-10-07 | 1989-06-14 | Honda Motor Co Ltd | Six-stroke engine |
| JPH09273430A (en) * | 1996-04-08 | 1997-10-21 | Osamu Nakada | Six-cycle gasoline engine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7726268B2 (en) * | 2008-10-20 | 2010-06-01 | Howard Kelem | Six stroke internal combustion engine and method of operation |
| CN101791942A (en) * | 2010-03-04 | 2010-08-04 | 栾继胜 | Configuration, layout and control of hybrid electric drive system |
| WO2011106944A1 (en) * | 2010-03-04 | 2011-09-09 | Luan Jisheng | Hybrid drive system and control method thereof |
| GB2476852A (en) * | 2010-09-16 | 2011-07-13 | Anthony Edgar Blackburn | Variable inlet valve actuation arrangement for a six-stroke IC engine |
| GB2476852B (en) * | 2010-09-16 | 2012-01-11 | Anthony Edgar Blackburn | Six stroke 'Blackburn Cycle' |
| US20140158068A1 (en) * | 2012-12-12 | 2014-06-12 | Caterpillar Inc. | Six-Stroke Engine System with Blowdown Exhaust System |
| US8978601B2 (en) * | 2012-12-12 | 2015-03-17 | Caterpillar Inc. | Six-stroke engine system with blowdown exhaust system |
| GB2530085A (en) * | 2014-09-12 | 2016-03-16 | Michael Willoughby Essex Coney | An internal combustion engine with a novel 4-stroke cycle and optional compressed air energy storage |
| CN106321235A (en) * | 2016-08-30 | 2017-01-11 | 潘晓德 | Six-stroke gasoline engine without ignition system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0021029D0 (en) | 2000-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |