EP2449227A2 - Inline-doppelkolbenmotor - Google Patents
Inline-doppelkolbenmotorInfo
- Publication number
- EP2449227A2 EP2449227A2 EP10740133A EP10740133A EP2449227A2 EP 2449227 A2 EP2449227 A2 EP 2449227A2 EP 10740133 A EP10740133 A EP 10740133A EP 10740133 A EP10740133 A EP 10740133A EP 2449227 A2 EP2449227 A2 EP 2449227A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- combustion chamber
- double
- receptacle
- engine according
- 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
Links
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
- F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F02B75/30—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with one working piston sliding inside another
-
- 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
- F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F01B7/20—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other
Definitions
- the invention relates to a four-stroke internal combustion engine, designed as
- Double-piston engine according to the inline principle, in which two pistons sliding into one another move in one cylinder.
- the object of the invention is to provide an efficient internal combustion engine with a particularly simple and efficient construction.
- the invention is based on the idea of exploiting the residual pressure, as it can be represented in a p-V diagram, by making available a larger displacement volume during the power stroke.
- Fig. 1 is a schematic section through the double piston during the four
- Fig. 2 shows the p-V diagram of a typical gasoline engine with residual volume fraction according to the prior art.
- the entire working piston consists of two nested pistons, one (outer) piston 1 and the other (inner) piston 3.
- Fig. Ia sucks the inner small piston 3 through the opening in the outer piston 1, the fuel Air mixture, while the outer piston 1 remains at top dead center.
- Fig. Ib During the working cycle, Fig. Ic, the upper piston 1 is unlocked by the preferably ring-shaped locking element 2, so that the piston pair 1, 3 with the entire, so enlarged piston area for
- the entire piston surface can be adjusted in this device so that the residual pressure when opening the exhaust valve can be kept much lower than the known power stroke of a four-stroke gasoline engine.
- simulation method according to the model of the Gleichraumvones can be shown that the device can be optimized so far that when opening the exhaust valve, the residual pressure in the cylinder chamber corresponds to the ambient pressure, which increases the energy yield of the cycle.
- the energy gain is shown in Fig. 2, in the diagram area 8 and resulted in
- the power transmission takes place with known means such as connecting rod 4, crank 5 and crank pin. 7
- Simulation methods are shown that is expected to maintain a constant friction and uneven running characteristics of the engine are damped by the invention.
- the simulation model is based on the consideration that the sum of the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910031860 DE102009031860A1 (de) | 2009-07-03 | 2009-07-03 | Inline-Doppelkolbenmotor |
PCT/DE2010/000660 WO2011000342A2 (de) | 2009-07-03 | 2010-06-14 | Inline-doppelkolbenmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2449227A2 true EP2449227A2 (de) | 2012-05-09 |
EP2449227B1 EP2449227B1 (de) | 2013-04-24 |
Family
ID=43257759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10740133.3A Not-in-force EP2449227B1 (de) | 2009-07-03 | 2010-06-14 | Inline-doppelkolbenmotor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2449227B1 (de) |
DE (1) | DE102009031860A1 (de) |
WO (1) | WO2011000342A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004981A1 (de) * | 2012-03-14 | 2013-09-19 | Fachhochschule Lübeck | Ansteuerung für einen Inline-Doppelkolbenmotor |
US8893671B2 (en) * | 2012-08-22 | 2014-11-25 | Jack R. Taylor | Full expansion internal combustion engine with co-annular pistons |
CN104632381A (zh) * | 2015-01-07 | 2015-05-20 | 吕建伟 | 汽车双活塞变容式发动机 |
CN106014626A (zh) * | 2016-07-12 | 2016-10-12 | 魏伯卿 | 变缸发动机多级套缸变缸装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR652172A (fr) * | 1928-01-28 | 1929-03-05 | Perfectionnements aux moteurs à combustion interne | |
DE2709939A1 (de) | 1977-03-08 | 1978-09-14 | Horst Lubbe | Doppelkolbenmotor mit zwei ineinander gleitenden kolben |
US4164916A (en) * | 1978-08-07 | 1979-08-21 | Wuerfel Robert P | Variable displacement arrangement in four cycle, reciprocating, internal combustion engine |
JPS6336030A (ja) * | 1985-12-27 | 1988-02-16 | Watanabe Kikai Kogyo Kk | 二重ピストンを備えた内燃機関 |
DE4006012A1 (de) | 1990-02-26 | 1991-09-05 | Horst Dipl Ing Pehlemann | Veraenderbarer verdichtungsraum fuer brennkraftmaschinen |
US7438028B1 (en) * | 2007-04-05 | 2008-10-21 | Edward Lawrence Warren | Four stroke engine with a fuel saving sleeve |
-
2009
- 2009-07-03 DE DE200910031860 patent/DE102009031860A1/de not_active Ceased
-
2010
- 2010-06-14 WO PCT/DE2010/000660 patent/WO2011000342A2/de active Application Filing
- 2010-06-14 EP EP10740133.3A patent/EP2449227B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2011000342A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102009031860A1 (de) | 2011-01-13 |
WO2011000342A3 (de) | 2011-03-17 |
WO2011000342A2 (de) | 2011-01-06 |
EP2449227B1 (de) | 2013-04-24 |
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