GB2476495A - Free piston engine - Google Patents
Free piston engine Download PDFInfo
- Publication number
- GB2476495A GB2476495A GB0922539A GB0922539A GB2476495A GB 2476495 A GB2476495 A GB 2476495A GB 0922539 A GB0922539 A GB 0922539A GB 0922539 A GB0922539 A GB 0922539A GB 2476495 A GB2476495 A GB 2476495A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- cylinder
- engine
- intake
- valve
- 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- Withdrawn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
- 230000006835 compression Effects 0.000 claims abstract description 82
- 238000007906 compression Methods 0.000 claims abstract description 82
- 238000002485 combustion reaction Methods 0.000 claims abstract description 81
- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000004907 flux Effects 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 3
- 239000000446 fuel Substances 0.000 claims description 69
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 230000002829 reductive effect Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 6
- 230000002459 sustained effect Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 40
- 230000002000 scavenging effect Effects 0.000 description 19
- 238000006073 displacement reaction Methods 0.000 description 13
- 239000012530 fluid Substances 0.000 description 12
- 230000009471 action Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 230000001976 improved effect Effects 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009736 wetting Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101100180051 Danio rerio isl2a gene Proteins 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/14—Multiple-valve arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
- F01B11/001—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in the two directions is obtained by one double acting piston motor
-
- 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
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- 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
- F02B71/00—Free-piston engines; Engines without rotary main shaft
-
- 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
- F02B71/00—Free-piston engines; Engines without rotary main shaft
- F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
-
- 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
- F02B75/002—Double acting engines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0922539A GB2476495A (en) | 2009-12-24 | 2009-12-24 | Free piston engine |
| US13/517,161 US8794198B2 (en) | 2009-12-24 | 2010-12-17 | Free piston engine |
| BR112012015390A BR112012015390A2 (pt) | 2009-12-24 | 2010-12-17 | motor de pistão livre, veículo e gerador de energia elétrica |
| EP10801238.6A EP2516805B1 (en) | 2009-12-24 | 2010-12-17 | Free piston engine |
| PCT/GB2010/052123 WO2011077119A2 (en) | 2009-12-24 | 2010-12-17 | Free piston engine |
| RU2012131482/06A RU2539906C2 (ru) | 2009-12-24 | 2010-12-17 | Свободнопоршневой двигатель |
| KR1020127017340A KR101677314B1 (ko) | 2009-12-24 | 2010-12-17 | 자유 피스톤 엔진 |
| JP2012545439A JP5732472B2 (ja) | 2009-12-24 | 2010-12-17 | フリーピストンエンジン |
| CN201080058788.1A CN102667060B (zh) | 2009-12-24 | 2010-12-17 | 自由活塞式发动机 |
| KR1020127017341A KR20120098864A (ko) | 2009-12-24 | 2010-12-23 | 연소 관리 시스템 |
| PCT/GB2010/052199 WO2011077162A1 (en) | 2009-12-24 | 2010-12-23 | Combustion management system |
| EP10801692.4A EP2516826B1 (en) | 2009-12-24 | 2010-12-23 | Combustion management system |
| US13/517,166 US20120266842A1 (en) | 2009-12-24 | 2010-12-23 | Combustion Management System |
| ES10801692T ES2435815T3 (es) | 2009-12-24 | 2010-12-23 | Sistema de gestión de combustión |
| CN201080058784.3A CN102770637B (zh) | 2009-12-24 | 2010-12-23 | 燃烧管理系统 |
| BR112012015388A BR112012015388A2 (pt) | 2009-12-24 | 2010-12-23 | sistema de gerenciamento de combustível para um motor de pistão livre tendo pelo menos um cilíndro com um meio de admissão |
| ZA2012/04049A ZA201204049B (en) | 2009-12-24 | 2012-06-04 | Combustion management system |
| ZA2012/04087A ZA201204087B (en) | 2009-12-24 | 2012-06-05 | Free piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0922539A GB2476495A (en) | 2009-12-24 | 2009-12-24 | Free piston engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0922539D0 GB0922539D0 (en) | 2010-02-10 |
| GB2476495A true GB2476495A (en) | 2011-06-29 |
Family
ID=41716888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0922539A Withdrawn GB2476495A (en) | 2009-12-24 | 2009-12-24 | Free piston engine |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US8794198B2 (https=) |
| EP (2) | EP2516805B1 (https=) |
| JP (1) | JP5732472B2 (https=) |
| KR (2) | KR101677314B1 (https=) |
| CN (2) | CN102667060B (https=) |
| BR (2) | BR112012015390A2 (https=) |
| ES (1) | ES2435815T3 (https=) |
| GB (1) | GB2476495A (https=) |
| RU (1) | RU2539906C2 (https=) |
| WO (2) | WO2011077119A2 (https=) |
| ZA (2) | ZA201204049B (https=) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488850A (en) * | 2011-08-10 | 2012-09-12 | Libertine Fpe Ltd | Piston for a free piston engine generator |
| WO2016115160A1 (en) * | 2015-01-15 | 2016-07-21 | Etagen, Inc. | Energy storage and conversion in free-piston combustion engines |
| WO2019010412A1 (en) | 2017-07-06 | 2019-01-10 | Bunjes Douglas David | COMBUSTION SYSTEMS AND METHODS |
| US11525391B2 (en) | 2010-11-23 | 2022-12-13 | Mainspring Energy, Inc. | High-efficiency linear generator |
| US11616428B2 (en) | 2018-07-24 | 2023-03-28 | Mainspring Energy, Inc. | Linear electromagnetic machine system |
| RU2809423C1 (ru) * | 2023-01-18 | 2023-12-11 | Глеб Владимирович Пономаренко | Поршневой двигатель внутреннего сгорания с линейным генератором |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201021406D0 (en) * | 2010-12-17 | 2011-01-26 | Libertine Fpe Ltd | Free piston engine generator |
| GB2494217B (en) * | 2012-01-19 | 2014-10-08 | Libertine Fpe Ltd | A linear electrical machine with a piston and axially segmented cylinder |
| US10502177B2 (en) | 2013-08-12 | 2019-12-10 | Ford Global Technologies, Llc | Methods and systems for improving engine starting |
| US11008864B2 (en) | 2014-04-24 | 2021-05-18 | Aquarius Engines (A.M.) Ltd. | Engine with work stroke and gas exchange through piston rod |
| US11346219B2 (en) | 2014-04-24 | 2022-05-31 | Aquarius Engines (A.M.) Ltd. | Engine with work stroke and gas exchange through piston rod |
| ES2973012T3 (es) | 2014-04-24 | 2024-06-18 | Aquarius Engines A M Ltd | Motor de pistón libre |
| US9551221B1 (en) | 2015-07-15 | 2017-01-24 | Aquarius Engines (A.M.) Ltd. | Engine with continuous gas exchange during momentum stroke |
| US9664103B2 (en) * | 2015-08-08 | 2017-05-30 | John E Wacholtz, JR. | Virtual variable displacement two-stroke internal combustion piston engine |
| US11255405B2 (en) | 2015-10-20 | 2022-02-22 | Aquarius Engines (A.M.) Ltd. | Vibration prevention in a linear actuator |
| CN106089541A (zh) * | 2016-06-14 | 2016-11-09 | 吉林大学 | 基于极值搜索的自由活塞发动机控制系统点火位置优化方法 |
| CN106050517A (zh) * | 2016-07-26 | 2016-10-26 | 北京理工大学 | 一种用于点燃式自由活塞直线发电机的点火控制方法 |
| WO2019123493A1 (en) * | 2017-12-21 | 2019-06-27 | Ceme S.P.A | A mass shifting mechanism between twin equilibrium points, and electro-pump or electro-valve having such shifting mechanism |
| US10641166B1 (en) | 2018-12-03 | 2020-05-05 | Aquarius Engines (A.M.) Ltd. | Piston rod and free piston engine |
| US11008959B2 (en) | 2019-06-28 | 2021-05-18 | Aquarius Engines Central Europe Sp. z o.o. | System and method for controlling engine using reference point |
| GB2590407B (en) * | 2019-12-16 | 2025-06-18 | Libertine Fpe Ltd | Power coupling for free piston mover |
| IL281086A (en) * | 2021-02-24 | 2022-09-01 | Yafa Innovations Ltd | Linear power generator |
| US20250323552A1 (en) * | 2024-04-10 | 2025-10-16 | Hyliion Holdings Corp | Integrated piston assembly for an electric machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3105153A (en) * | 1960-08-05 | 1963-09-24 | Exxon Research Engineering Co | Free-piston generator of electric current |
| GB1132974A (en) * | 1964-11-25 | 1968-11-06 | Citroen Sa | Improvements in hydraulic transmission power plants |
| US4484082A (en) * | 1980-10-15 | 1984-11-20 | Bucknam Donald C | Power plant and process utilizing gravitational force |
| US4924956A (en) * | 1986-10-24 | 1990-05-15 | Rdg Inventions Corporation | Free-piston engine without compressor |
| EP0397359A2 (en) * | 1989-05-09 | 1990-11-14 | Isuzu Motors Limited | Cycle changeable engine |
| US5727639A (en) * | 1996-03-11 | 1998-03-17 | Lee Matherne | Pile driving hammer improvement |
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| FR1439104A (fr) * | 1965-03-23 | 1966-05-20 | Anciens Etablissements Panhard | Perfectionnements apportés aux dispositifs de mise en marche des moteurs monocylindriques à piston libre à double effet |
| US4205528A (en) * | 1978-11-06 | 1980-06-03 | Grow Harlow B | Compression ignition controlled free piston-turbine engine |
| JPS5713235A (en) * | 1980-05-27 | 1982-01-23 | Bobiaa Gurou Haarurou | Free piston-turbine scavenge thermal engine |
| US4342920A (en) * | 1980-10-15 | 1982-08-03 | Bucknam Donald C | Power plant and process utilizing gravitational force |
| DE3224723A1 (de) * | 1982-07-02 | 1984-01-05 | Wolfgang 8501 Oberasbach Täuber | Freikolbenbrennkraftmaschine mit generator |
| US4653274A (en) * | 1984-03-06 | 1987-03-31 | David Constant V | Method of controlling a free piston external combustion engine |
| SU1508001A1 (ru) * | 1984-06-11 | 1989-09-15 | Л. М. Жмуд к | Свободнопоршневой генератор газа |
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| JPH06100094B2 (ja) * | 1989-05-09 | 1994-12-12 | いすゞ自動車株式会社 | ２サイクル断熱エンジンの制御装置 |
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| RU2084663C1 (ru) * | 1991-12-25 | 1997-07-20 | Александр Алексеевич Пустынцев | Свободнопоршневой двигатель |
| US5788003A (en) * | 1996-01-29 | 1998-08-04 | Spiers; Kent | Electrically powered motor vehicle with linear electric generator |
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| AUPQ806500A0 (en) * | 2000-06-09 | 2000-07-06 | Wechner, Edward | Improvements to free-piston engines |
| US6595187B1 (en) * | 2000-10-12 | 2003-07-22 | Ford Global Technologies, Llc | Control method for internal combustion engine |
| US7082909B2 (en) * | 2002-04-25 | 2006-08-01 | Deutsches Zentrum Fur Luft- Und Raumfahrt E.V. | Free-piston device with electric linear drive |
| SE525796C2 (sv) * | 2002-09-16 | 2005-04-26 | Volvo Technology Corp | Energiomvandlare inrättad så att den anpassar sin uteffekt beroende på den erforderliga lasten |
| WO2005100769A2 (en) * | 2004-04-19 | 2005-10-27 | Volvo Technology Corporation | Method and system for controlling a free-piston energy converter |
| JP2006170071A (ja) * | 2004-12-15 | 2006-06-29 | Denso Corp | フリーピストンエンジンの制御装置及び制御方法 |
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- 2010-12-17 WO PCT/GB2010/052123 patent/WO2011077119A2/en not_active Ceased
- 2010-12-17 KR KR1020127017340A patent/KR101677314B1/ko not_active Expired - Fee Related
- 2010-12-17 EP EP10801238.6A patent/EP2516805B1/en not_active Not-in-force
- 2010-12-17 JP JP2012545439A patent/JP5732472B2/ja active Active
- 2010-12-17 RU RU2012131482/06A patent/RU2539906C2/ru not_active IP Right Cessation
- 2010-12-17 BR BR112012015390A patent/BR112012015390A2/pt not_active Application Discontinuation
- 2010-12-17 US US13/517,161 patent/US8794198B2/en active Active
- 2010-12-23 EP EP10801692.4A patent/EP2516826B1/en not_active Not-in-force
- 2010-12-23 KR KR1020127017341A patent/KR20120098864A/ko not_active Ceased
- 2010-12-23 US US13/517,166 patent/US20120266842A1/en not_active Abandoned
- 2010-12-23 CN CN201080058784.3A patent/CN102770637B/zh not_active Expired - Fee Related
- 2010-12-23 ES ES10801692T patent/ES2435815T3/es active Active
- 2010-12-23 WO PCT/GB2010/052199 patent/WO2011077162A1/en not_active Ceased
- 2010-12-23 BR BR112012015388A patent/BR112012015388A2/pt not_active Application Discontinuation
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- 2012-06-05 ZA ZA2012/04087A patent/ZA201204087B/en unknown
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12421890B2 (en) | 2010-11-23 | 2025-09-23 | Mainspring Energy, Inc. | High-efficiency linear generator |
| US12000331B2 (en) | 2010-11-23 | 2024-06-04 | Mainspring Energy, Inc. | High-efficiency linear generator |
| US11525391B2 (en) | 2010-11-23 | 2022-12-13 | Mainspring Energy, Inc. | High-efficiency linear generator |
| GB2488850B (en) * | 2011-08-10 | 2013-12-11 | Libertine Fpe Ltd | Piston for a free piston engine generator |
| GB2488850A (en) * | 2011-08-10 | 2012-09-12 | Libertine Fpe Ltd | Piston for a free piston engine generator |
| US11578646B2 (en) | 2015-01-15 | 2023-02-14 | Mainspring Energy, Inc. | Energy storage and conversion in linear generators |
| WO2016115160A1 (en) * | 2015-01-15 | 2016-07-21 | Etagen, Inc. | Energy storage and conversion in free-piston combustion engines |
| US9719415B2 (en) | 2015-01-15 | 2017-08-01 | Etagen, Inc. | Energy storage and conversion in free-piston combustion engines |
| US10190490B2 (en) | 2015-01-15 | 2019-01-29 | Etagen, Inc. | Energy storage and conversion in free-piston combustion engines |
| US10738688B2 (en) | 2015-01-15 | 2020-08-11 | Mainspring Energy, Inc. | Energy storage and conversion in free-piston combustion engines |
| US11352947B2 (en) | 2015-01-15 | 2022-06-07 | Mainspring Energy, Inc. | Energy storage and conversion in linear generators |
| US11041431B2 (en) | 2017-07-06 | 2021-06-22 | Douglas David Bunjes | Combustion systems and methods |
| EP3649329A4 (en) * | 2017-07-06 | 2020-12-09 | Bunjes, Douglas David | COMBUSTION SYSTEMS AND PROCESSES |
| WO2019010412A1 (en) | 2017-07-06 | 2019-01-10 | Bunjes Douglas David | COMBUSTION SYSTEMS AND METHODS |
| US11616428B2 (en) | 2018-07-24 | 2023-03-28 | Mainspring Energy, Inc. | Linear electromagnetic machine system |
| RU2809423C1 (ru) * | 2023-01-18 | 2023-12-11 | Глеб Владимирович Пономаренко | Поршневой двигатель внутреннего сгорания с линейным генератором |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0922539D0 (en) | 2010-02-10 |
| EP2516805A2 (en) | 2012-10-31 |
| EP2516826B1 (en) | 2013-10-16 |
| ES2435815T3 (es) | 2013-12-23 |
| WO2011077119A2 (en) | 2011-06-30 |
| US20120280513A1 (en) | 2012-11-08 |
| BR112012015388A2 (pt) | 2017-12-12 |
| KR20120102743A (ko) | 2012-09-18 |
| JP2013515900A (ja) | 2013-05-09 |
| WO2011077162A1 (en) | 2011-06-30 |
| KR20120098864A (ko) | 2012-09-05 |
| JP5732472B2 (ja) | 2015-06-10 |
| CN102770637B (zh) | 2015-10-21 |
| US20120266842A1 (en) | 2012-10-25 |
| KR101677314B1 (ko) | 2016-11-17 |
| CN102667060A (zh) | 2012-09-12 |
| RU2539906C2 (ru) | 2015-01-27 |
| EP2516826A1 (en) | 2012-10-31 |
| ZA201204049B (en) | 2013-03-27 |
| WO2011077119A3 (en) | 2011-11-10 |
| CN102770637A (zh) | 2012-11-07 |
| ZA201204087B (en) | 2016-01-27 |
| CN102667060B (zh) | 2015-05-06 |
| RU2012131482A (ru) | 2014-01-27 |
| BR112012015390A2 (pt) | 2017-12-12 |
| EP2516805B1 (en) | 2018-10-17 |
| US8794198B2 (en) | 2014-08-05 |
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| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |