WO2006002982A1 - Gaswechselsteuerung für gegenkolbenmotoren - Google Patents
Gaswechselsteuerung für gegenkolbenmotoren Download PDFInfo
- Publication number
- WO2006002982A1 WO2006002982A1 PCT/EP2005/007250 EP2005007250W WO2006002982A1 WO 2006002982 A1 WO2006002982 A1 WO 2006002982A1 EP 2005007250 W EP2005007250 W EP 2005007250W WO 2006002982 A1 WO2006002982 A1 WO 2006002982A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas exchange
- exchange control
- opposed
- piston
- sliding
- Prior art date
Links
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
- F01L5/00—Slide valve-gear or valve-arrangements
- F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L5/06—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
-
- 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
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/04—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
-
- 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
- F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
-
- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
Definitions
- the principle of the opposed-piston engine due to the absence of a cylinder head, has the thermodynamic advantage of significantly reducing the heat-removing surface exposed to the working gas. Therefore, the present invention primarily relates to opposed piston engines, although in principle it can be applied to all slot-controlled engines.
- Counter-piston engines operate according to the two-stroke process, since due to the missing top plate no controlled valves can be attached to control the gas exchange.
- the pistons run on their way from the top to the bottom dead center via in-cylinder slots, whereby the inlet and outlet ports are opened and the gas exchange is enabled.
- a disadvantage of this method is that the piston rings sealing the piston when overflowing the slots would jump, so that the ring cross-section must be narrowed by appropriate Fahrungsstege.
- compliance with ever stricter emission specifications is very difficult due to the oil-wiping effect of the rings in the slots.
- the use of ringless pistons is not indicated in the trend towards ever higher spit pressures.
- a change in the resulting by the position of the control slots timing for the gas exchange is possible only by the introduction of differently positioned slots or by adjusting the synchronous operation of the crankshaft.
- the pistons run most of their way under gas pressure in a fixed liner.
- the piston rings overflow towards the end of the expansion stroke a virtually gapless shock at the transition from the fixed liner into the movable sliding sleeve.
- this shock is still closed and only then opened to release the underlying slot. It is closed again in good time before the piston returns.
- the sliding bushes are only very slightly loaded by gas pressures and temperatures. This control of the sliding bushes can be done by a camshaft, which also simultaneously takes over the control of the injection.
- Fig. 1 shows a schematic cross section through an opposed piston engine. It shows the mutually bolted housing halves 1 and 2, in which the Crankshafts 3 and 4 are mounted, which move the piston 7 and 8 via the connecting rods 5 and 6. These are guided in the longitudinally displaceable sliding bushes 9 and 10. About the camshafts 11 and 12, the sliding bushes can be moved so that they can open and close the gas guide channels 13 and 14 located in the housing. A camshaft simultaneously serves as a drive for the injection pump 15, which injects the fuel via the nozzle 16 into the combustion chamber 17. About a gear train 18, the two crankshafts 3 and 4 are synchronously connected continuously, with 2 intermediate wheels serve as a drive for the camshafts 11 and 12.
- Fig. 2 shows details of the above-described illustration with the same reference numerals.
- Fig. 3 shows both pistons 7 and 8 at top dead center. Both sliding bushes 9 and 10 keep the gas guide channels 13 and 14 closed.
- Fig. 4 shows the piston position shortly before the end of the expansion stroke.
- the sliding sleeve 9 is already open and discharges the used gas into the outlet channel 13, while the sliding sleeve 10 keeps the inlet channel still closed.
- Fig. 5 shows the piston position at bottom dead center. Both sliding sleeves have the channels 13 and 14 open. Fresh gas 20 flows through the inlet channel 14 through the cylinder and flows off via the outlet channel 13 again.
- Fig. 6 shows the piston position shortly after the beginning of the compression stroke.
- the sliding sleeve 9 has already closed the outlet channel 13, while the still open sliding sleeve 10 fresh air 20 fills the cylinder via the inlet channel 14.
- 7 shows another embodiment of the gas exchange control according to the invention by the sliding bushes 9 and 10 and the outlet channel 13 and the inlet channel 14.
- the pistons run in a non-movable cylinder 20 and only reach the sliding bushes 9 and 10 towards the end of the expansion stroke.
- Fig. 8 shows a piston position shortly before the end of the expansion stroke.
- the spent gas 21 begins to flow via the gap just opened through the sliding sleeve 9 into the outlet channel 13.
- Fig. 9 shows the piston position at bottom dead center. Fresh gas 22 flows through the inlet channel 14 beyond the gap opened by the sliding sleeve 10 through the cylinder and through the outlet channel 13.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/630,566 US7669560B2 (en) | 2004-07-05 | 2005-07-05 | Gas exchange control mechanism for an opposed-piston engine |
DE202005021624U DE202005021624U1 (de) | 2004-07-05 | 2005-07-05 | Gegenkolbenmotor mit Gaswechselsteuerung |
JP2007519701A JP2008505282A (ja) | 2004-07-05 | 2005-07-05 | 対向ピストンエンジン用ガス交換制御機構 |
EP05755971A EP1776514A1 (de) | 2004-07-05 | 2005-07-05 | Gaswechselsteuerung für gegenkolbenmotoren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032452.2 | 2004-07-05 | ||
DE102004032452A DE102004032452A1 (de) | 2004-07-05 | 2004-07-05 | Gaswechselsteuerung für Gegenkolbenmotoren |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006002982A1 true WO2006002982A1 (de) | 2006-01-12 |
Family
ID=34982248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/007250 WO2006002982A1 (de) | 2004-07-05 | 2005-07-05 | Gaswechselsteuerung für gegenkolbenmotoren |
Country Status (5)
Country | Link |
---|---|
US (1) | US7669560B2 (de) |
EP (1) | EP1776514A1 (de) |
JP (1) | JP2008505282A (de) |
DE (2) | DE102004032452A1 (de) |
WO (1) | WO2006002982A1 (de) |
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JP2009534578A (ja) * | 2006-04-18 | 2009-09-24 | クリーヴス エンジンズ インコーポレイテッド | 内燃機関 |
CN103168148A (zh) * | 2010-08-16 | 2013-06-19 | 阿凯提兹动力公司 | 对置活塞发动机的燃料喷射的喷洒模式 |
US9163506B2 (en) | 2010-01-27 | 2015-10-20 | Two Stroke Developments Limited | Engine |
US9175609B2 (en) | 2010-10-08 | 2015-11-03 | Pinnacle Engines, Inc. | Control of combustion mixtures and variability thereof with engine load |
US9206749B2 (en) | 2009-06-04 | 2015-12-08 | Pinnacle Engines, Inc. | Variable compression ratio systems for opposed-piston and other internal combustion engines, and related methods of manufacture and use |
US9316150B2 (en) | 2012-07-02 | 2016-04-19 | Pinnacle Engines, Inc. | Variable compression ratio diesel engine |
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DE102009053720A1 (de) | 2009-11-18 | 2011-05-19 | Daude, Otto, Dr.-Ing. MBA | Dichtungs-Ausführung für Schiebebüchsen zur Gaswechselsteuerung in Verbrennungsmotoren |
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CN102947545B (zh) | 2010-04-27 | 2015-11-25 | 阿凯提兹动力公司 | 用于对置活塞发动机的燃烧室构造 |
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US9512779B2 (en) | 2010-04-27 | 2016-12-06 | Achates Power, Inc. | Swirl-conserving combustion chamber construction for opposed-piston engines |
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GB2493260A (en) | 2011-07-26 | 2013-01-30 | Ecomotors Internat Inc | Opposed piston engine with tumble flow in shaped combustion chamber |
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US20130104848A1 (en) | 2011-10-27 | 2013-05-02 | Achates Power, Inc. | Fuel Injection Strategies in Opposed-Piston Engines with Multiple Fuel Injectors |
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DE102012004912A1 (de) | 2012-03-09 | 2013-09-12 | Günter Elsbett | Gegenkolbenmotor mit Gaswechselsteuerung durch hydraulisch bewegte Schiebebüchsen |
DE102012010982A1 (de) | 2012-06-02 | 2013-12-05 | Otto Daude | Gaswechselsteuerung für Hubkolbenmotor |
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DE202012005573U1 (de) | 2012-06-05 | 2012-07-10 | Günter Elsbett | Brennraum für Gegenkolbenmotor |
DE102013003537A1 (de) | 2013-03-02 | 2014-09-04 | Otto Daude | Zweitakt-Viertakt-Umschaltung bei Hubkolbenmotoren mit Gaswechselsteuerung durch Schiebebüchsen |
DE102013004723A1 (de) | 2013-03-20 | 2014-09-25 | Günter Elsbett | Gaswechselsteuerung von Verbrennungsmotoren mit hydraulisch betätigten Gaswechselorganen |
DE202013002671U1 (de) | 2013-03-20 | 2013-04-15 | Günter Elsbett | Gaswechselsteuerung von Verbrennungsmotoren mit hydraulisch betätigten Gaswechselorganen |
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US9211797B2 (en) | 2013-11-07 | 2015-12-15 | Achates Power, Inc. | Combustion chamber construction with dual mixing regions for opposed-piston engines |
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JP6488877B2 (ja) * | 2015-05-18 | 2019-03-27 | いすゞ自動車株式会社 | 内燃機関 |
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US11085297B1 (en) * | 2016-02-24 | 2021-08-10 | Enginuity Power Systems, Inc | Opposed piston engine and elements thereof |
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CN107916964B (zh) * | 2017-12-01 | 2019-10-18 | 北京理工大学 | 一种基于滑动缸套的可变配气相位机构 |
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DE633278C (de) * | 1936-07-23 | Ernst Schmid | Schiebersteuerung fuer Viertaktbrennkraftmaschinen mit gegenlaeufigen Kolben | |
GB477975A (en) | 1935-04-06 | 1938-01-06 | United Aircraft Corp | Improvements in or relating to engines of the sleeve valve type |
GB497300A (en) * | 1937-09-14 | 1938-12-16 | Richard Porkman | Improvements in or relating to internal combustion engines of the opposed piston type |
US2781749A (en) * | 1954-06-04 | 1957-02-19 | Stucke John | Opposed piston sleeve valve outboard motor |
GB1015189A (en) | 1963-03-20 | 1965-12-31 | Maurice Eustace Lindsay | Improvements in or relating to internal combustion engines |
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2004
- 2004-07-05 DE DE102004032452A patent/DE102004032452A1/de not_active Withdrawn
-
2005
- 2005-07-05 US US11/630,566 patent/US7669560B2/en not_active Expired - Fee Related
- 2005-07-05 WO PCT/EP2005/007250 patent/WO2006002982A1/de active Application Filing
- 2005-07-05 JP JP2007519701A patent/JP2008505282A/ja active Pending
- 2005-07-05 DE DE202005021624U patent/DE202005021624U1/de not_active Expired - Lifetime
- 2005-07-05 EP EP05755971A patent/EP1776514A1/de not_active Withdrawn
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DE633278C (de) * | 1936-07-23 | Ernst Schmid | Schiebersteuerung fuer Viertaktbrennkraftmaschinen mit gegenlaeufigen Kolben | |
US1075386A (en) * | 1912-02-03 | 1913-10-14 | Huntington Smith | Device for electrocuting animals. |
GB477975A (en) | 1935-04-06 | 1938-01-06 | United Aircraft Corp | Improvements in or relating to engines of the sleeve valve type |
GB497300A (en) * | 1937-09-14 | 1938-12-16 | Richard Porkman | Improvements in or relating to internal combustion engines of the opposed piston type |
US2781749A (en) * | 1954-06-04 | 1957-02-19 | Stucke John | Opposed piston sleeve valve outboard motor |
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US5081963A (en) * | 1986-09-04 | 1992-01-21 | Galbraith Engineering Pty. Ltd. | Reciprocatory machines |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009534578A (ja) * | 2006-04-18 | 2009-09-24 | クリーヴス エンジンズ インコーポレイテッド | 内燃機関 |
US8365697B2 (en) | 2006-04-18 | 2013-02-05 | Pinnacle Engines, Inc. | Internal combustion engine |
JP2013083266A (ja) * | 2006-04-18 | 2013-05-09 | Pinnacle Engines Inc | 内燃機関 |
US9745915B2 (en) | 2006-04-18 | 2017-08-29 | Pinnacle Engines, Inc | Internal combustion engine |
KR101349902B1 (ko) | 2006-04-18 | 2014-01-13 | 피너클 엔진스, 인코포레이티드 | 내연 기관 |
US8651086B2 (en) | 2006-04-18 | 2014-02-18 | Pinnacle Engines, Inc. | Internal combustion engine |
KR101377163B1 (ko) | 2006-04-18 | 2014-03-25 | 피너클 엔진스, 인코포레이티드 | 내연 기관 |
US9206749B2 (en) | 2009-06-04 | 2015-12-08 | Pinnacle Engines, Inc. | Variable compression ratio systems for opposed-piston and other internal combustion engines, and related methods of manufacture and use |
US9163506B2 (en) | 2010-01-27 | 2015-10-20 | Two Stroke Developments Limited | Engine |
CN103168148A (zh) * | 2010-08-16 | 2013-06-19 | 阿凯提兹动力公司 | 对置活塞发动机的燃料喷射的喷洒模式 |
US9175609B2 (en) | 2010-10-08 | 2015-11-03 | Pinnacle Engines, Inc. | Control of combustion mixtures and variability thereof with engine load |
US9650951B2 (en) | 2010-10-08 | 2017-05-16 | Pinnacle Engines, Inc. | Single piston sleeve valve with optional variable compression ratio capability |
US9316150B2 (en) | 2012-07-02 | 2016-04-19 | Pinnacle Engines, Inc. | Variable compression ratio diesel engine |
Also Published As
Publication number | Publication date |
---|---|
DE202005021624U1 (de) | 2008-12-18 |
US20080115771A1 (en) | 2008-05-22 |
US7669560B2 (en) | 2010-03-02 |
DE102004032452A1 (de) | 2006-01-26 |
EP1776514A1 (de) | 2007-04-25 |
JP2008505282A (ja) | 2008-02-21 |
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