EP0727013A1 - Moteur a combustion interne - Google Patents
Moteur a combustion interneInfo
- Publication number
- EP0727013A1 EP0727013A1 EP94931022A EP94931022A EP0727013A1 EP 0727013 A1 EP0727013 A1 EP 0727013A1 EP 94931022 A EP94931022 A EP 94931022A EP 94931022 A EP94931022 A EP 94931022A EP 0727013 A1 EP0727013 A1 EP 0727013A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- working
- piston
- combustion engine
- internal combustion
- 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- Withdrawn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
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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
- F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
-
- 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
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Definitions
- the invention relates to an internal combustion engine with a working cylinder, in which a working piston is movable up and down, which is connected via a piston rod to a second piston, which is movable up and down in a supercharger cylinder, the common piston rod being connected to the crank mechanism of the Internal combustion engine is connected and corresponding inlet, outlet and connecting channels are provided on the working cylinder and the loader cylinder.
- Such an internal combustion engine is known from GB-PS 1 467 394 (Fig. 6).
- a cylinder body is closed by a cylinder head and divided into a working cylinder, a supercharger cylinder and a crankshaft housing by first and second partition walls, wherein respective pistons are arranged in the working cylinder and the supercharger cylinder and are connected to the crank mechanism via a common piston rod .
- an air inlet opening provided with a valve which enables a flow into the loader cylinder and an air outlet line are provided on the loader cylinder in the vicinity of the top dead center and are connected via a connecting line to the working cylinder at a point such that the air inlet opening in the working cylinder at the bottom Dead center of the working piston is released, as well as an exhaust duct, which is also arranged in the working cylinder.
- a fresh gas mixture is introduced into the loader cylinder below the via a check valve which enables flow into the loader cylinder Supercharged piston.
- This inlet opening for the mixture is arranged near the bottom dead center of the supercharger piston and is closed by the latter at bottom dead center.
- the inlet opening is also connected via a line to the line connecting the space above the supercharger piston to the inlet opening of the working cylinder.
- the invention has for its object to provide an internal combustion engine of the type mentioned, which has a further improved exhaust gas behavior. This object is achieved by the features specified in claim 1.
- the inventive design of the internal combustion engine ensures perfect flushing of the burned mixture at the bottom dead center of the working piston due to the fresh gas mixture flowing from the charger cylinder into the working cylinder with increased pressure. Since the fresh gas mixture is fed to the working cylinder with increased pressure, suction losses are avoided, and the inlet slot of the working piston, which is closed and opened by the working piston, can have a very low height and thus improved controllability.
- the region of the working cylinder lying below the working piston is connected to the crank gear chamber via a connecting channel and an oil atomizer, which is provided with an air inlet opening, via which air is sucked in when the working piston moves in the direction of the top dead center and a corresponding amount of air via the
- Connection channel with oil enrichment is introduced into the space below the working piston.
- This space below the working piston can be connected to the combustion chamber via an overflow channel when the working piston clears the outlet slot during its movement towards bottom dead center. This results in an additional purging of the working cylinder with fresh air enriched with only a small amount of oil before the fresh gas mixture is introduced into the working cylinder.
- This connecting channel from the crank gear housing can also be connected to the loader cylinder via a further inlet slot, which opens into the region of the upper end of the loader cylinder and lubricates the loader piston.
- a further inlet slot which opens into the region of the upper end of the loader cylinder and lubricates the loader piston.
- the fuel / air mixture suddenly flows into the vacuum chamber formed by the supercharger. This results in a more effective and low-loss fresh gas supply to the working cylinder.
- the fuel / air mixture is swirled twice, which significantly increases the ignition efficiency and improves combustion, so that hardly any unburned fuel / oil particles get into the exhaust duct.
- the common piston rod of the working and the loading piston leads in a well-sealed manner through two bores in the partitions between the working and loading cylinders, or between the loading cylinder and crankcase, while being rigidly connected to the two pistons .
- the pistons are not subject to a “tilting movement 1” as in conventional piston machines, as a result of which the seal between the piston and the cylinder wall is significantly improved and the wear and the running noise are reduced. As a result, the pistons and cylinders can be kept much lower, which leads to a reduction in weight.
- the openings of the channels for the fresh air supply from the crankcase into the working and loading cylinders are placed so that a part of this fresh air mixed with oil is pressed back into the crankcase.
- the oil quantity absolutely necessary for the lubrication of the cylinders / pistons can be controlled by the oil sprayer or oil separator.
- This construction of the internal combustion engine is also advantageously suitable for use in an internal combustion engine with rotating cylinders, as described in DE-Al-43 37 668 by the same applicant with the same filing date, preferably two cylinders arranged symmetrically with respect to the cylinder axis of rotation with an associated one Working pistons are provided which are connected on a common piston rod to the loading piston arranged between the working pistons in a loading chamber. The supercharger piston is then connected to the crank of the crank mechanism of this internal combustion engine via an output member.
- This output member can either be a pin extending through a slot in the loader cylinder wall, the slot normally being closed by the loader piston in each of its positions, or a further piston rod can be connected to the loader piston if the loader cylinder has a correspondingly large diameter, wherein the further piston rod extends through a sealed bore in the end faces of the loader cylinder and is connected to the crank mechanism.
- Such an arrangement with two working cylinders, between which a common supercharger cylinder is arranged, the two working pistons being arranged at the ends of a piston rod, on the central region of which the supercharger piston is arranged, is of course also suitable for an engine with stationary cylinders.
- the embodiment of the internal combustion engine shown in the drawing comprises a working cylinder, generally designated I, a supercharger cylinder, generally designated II, and a crankcase, generally designated III, which are arranged one above the other.
- a piston 2 is arranged in the working cylinder I, which is connected via a piston rod 3 to a piston 10 arranged in the loading cylinder II and then via a bearing 18 to the connecting rod 16 of a crank mechanism 14 with the counterweight 15.
- the loader cylinder II preferably has a cylinder bore with a larger diameter than the cylinder bore of the working cylinder I in order to achieve better compression and an improved suction process in the manner described below.
- An outlet channel 4 for combustion gases is arranged in the working cylinder and is closed by the working piston 2 until it has almost reached its bottom dead center.
- the outlet opening of a flushing channel 8 which can also be closed in the working piston 2, the other end of which opens into the working cylinder I at the lower end thereof.
- an overflow channel 6 opens into the working cylinder via an inlet opening 5 at a point which is only released by the working piston 2 when bottom dead center is reached.
- This flushing channel 6 is connected at its other end to the lower end of the loading cylinder II.
- another overflow duct 7 opens into the working cylinder I at a point which is at a certain distance below the lower edge of the working piston 2 when it is at its top dead center.
- This further overflow channel 7 opens at its other end into the crankcase III, an oil atomizer being arranged at this end, which part of the oil in the crankcase III together with air into the working cylinder I and via another line to be explained in the Loader cylinder II initiates.
- an inlet duct 11 for the fresh gas mixture opens into the loader cylinder II, this inlet duct 11 being arranged at a point which is only released by the loader piston 10 in its top dead center position.
- Working mixture 2 burned mixture and presses the two pistons 2, 10 downward, whereby air located below the working piston 2 and fresh gas mixture located below the charger piston 10 is compressed. As soon as the working piston 2 releases the outlet channel 4 and the flushing channel 8, on the one hand the burned gases emerge from the outlet channel 4 and at the same time the air compressed below the working piston 2 is moved via the channel 8 into the space above the working piston 2 and leads to purging of the combustion chamber.
- the fresh gas mixture compressed below the supercharger piston can reach the combustion chamber via the overflow channel 6 and the inlet channel 5 when the working piston 2 is near bottom dead center, this fresh gas mixture being introduced into the combustion chamber at high pressure.
- the loader cylinder 10 has a considerably larger diameter than the working cylinder 2, a considerably increased amount of fresh gas mixture is sucked in, which is already considerably pre-compressed when it is transferred to the combustion chamber.
- the precompressed fresh gas mixture is then compressed again by the working piston 2, which results in a compressor effect which leads to a high efficiency of the internal combustion engine.
- the inlet slots 5 can be of low height, so that there is a more precise control option.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4337670A DE4337670C2 (de) | 1993-11-04 | 1993-11-04 | Verbrennungsmotor |
DE4337670 | 1993-11-04 | ||
PCT/EP1994/003586 WO1995012753A1 (fr) | 1993-11-04 | 1994-10-31 | Moteur a combustion interne |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0727013A1 true EP0727013A1 (fr) | 1996-08-21 |
Family
ID=6501807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94931022A Withdrawn EP0727013A1 (fr) | 1993-11-04 | 1994-10-31 | Moteur a combustion interne |
Country Status (4)
Country | Link |
---|---|
US (1) | US5694891A (fr) |
EP (1) | EP0727013A1 (fr) |
DE (1) | DE4337670C2 (fr) |
WO (1) | WO1995012753A1 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446478C2 (de) * | 1994-12-23 | 1999-07-08 | Hammerl Sabine Erika | Schmiersystem für einen Verbrennungsmotor |
US5884590A (en) * | 1997-09-19 | 1999-03-23 | Minculescu; Mihai C. | Two-stroke engine |
US6067952A (en) * | 1998-12-10 | 2000-05-30 | Brunswick Corporation | Cylinder bore lubrication with residual oil |
DE102005041992A1 (de) * | 2005-09-05 | 2007-03-15 | Schabinger, Günter Wilhelm | Brennkraftmaschine |
US7159544B1 (en) | 2005-10-06 | 2007-01-09 | Studdert Andrew P | Internal combustion engine with variable displacement pistons |
AU2006230688B2 (en) * | 2005-10-20 | 2012-02-02 | James Anderson | Engine |
US7428886B1 (en) * | 2007-01-26 | 2008-09-30 | Minculescu Mihai C | Two-cycle engine and compressor |
RU2500908C2 (ru) * | 2012-02-29 | 2013-12-10 | Виктор Васильевич Казаков | Прямодействующий симметричный двигатель внутреннего сгорания |
JP5997790B2 (ja) * | 2015-02-09 | 2016-09-28 | 本田技研工業株式会社 | 内燃機関の潤滑装置 |
US10753308B2 (en) | 2017-03-30 | 2020-08-25 | Quest Engines, LLC | Internal combustion engine |
US10590813B2 (en) | 2017-03-30 | 2020-03-17 | Quest Engines, LLC | Internal combustion engine |
US10526953B2 (en) | 2017-03-30 | 2020-01-07 | Quest Engines, LLC | Internal combustion engine |
US10598285B2 (en) | 2017-03-30 | 2020-03-24 | Quest Engines, LLC | Piston sealing system |
US10465629B2 (en) | 2017-03-30 | 2019-11-05 | Quest Engines, LLC | Internal combustion engine having piston with deflector channels and complementary cylinder head |
US11041456B2 (en) | 2017-03-30 | 2021-06-22 | Quest Engines, LLC | Internal combustion engine |
US10590834B2 (en) * | 2017-03-30 | 2020-03-17 | Quest Engines, LLC | Internal combustion engine |
US10989138B2 (en) | 2017-03-30 | 2021-04-27 | Quest Engines, LLC | Internal combustion engine |
KR102468662B1 (ko) | 2017-04-28 | 2022-11-18 | 퀘스트 엔진스, 엘엘씨 | 가변 체적 챔버 장치 |
WO2018204684A1 (fr) | 2017-05-04 | 2018-11-08 | Quest Engines, LLC | Chambre à volume variable pour interaction avec un fluide |
US10808866B2 (en) | 2017-09-29 | 2020-10-20 | Quest Engines, LLC | Apparatus and methods for controlling the movement of matter |
US11134335B2 (en) | 2018-01-26 | 2021-09-28 | Quest Engines, LLC | Audio source waveguide |
US10753267B2 (en) | 2018-01-26 | 2020-08-25 | Quest Engines, LLC | Method and apparatus for producing stratified streams |
US10690043B2 (en) | 2018-04-18 | 2020-06-23 | Boyesen, Inc. | Two-stroke engine and components thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB397824A (en) * | 1930-11-21 | 1933-08-31 | Selco Motor Company Aktiebolag | Improvements in and relating to internal combustion engines |
US2381832A (en) * | 1943-05-08 | 1945-08-07 | Mansoff Arthur Percival | Internal-combustion engine |
US3053342A (en) * | 1959-03-18 | 1962-09-11 | Mansoff Arthur Percival | Internal combustion engine |
DE2308127C3 (de) * | 1973-02-19 | 1979-09-06 | Walter 2105 Seevetal Franke | Zweitaktbrennkraftmaschine mit zwei bzw. drei Kompressionsräumen |
FR2384110A1 (fr) * | 1977-03-16 | 1978-10-13 | Bourguignon Pierre | Perfectionnements apportes aux moteurs a deux temps |
US4858571A (en) * | 1985-10-25 | 1989-08-22 | Yang Tai Her | Liquid pump driven by a two-cycle, dual piston internal combustion engine |
EP0263117A1 (fr) * | 1986-02-17 | 1988-04-13 | URQUHART, Robert | Moteur a deux temps suralimente |
DE3715750A1 (de) * | 1987-05-12 | 1988-11-24 | Joern Martens | Verbrennungskraftmaschine |
-
1993
- 1993-11-04 DE DE4337670A patent/DE4337670C2/de not_active Expired - Fee Related
-
1994
- 1994-10-31 US US08/637,755 patent/US5694891A/en not_active Expired - Fee Related
- 1994-10-31 EP EP94931022A patent/EP0727013A1/fr not_active Withdrawn
- 1994-10-31 WO PCT/EP1994/003586 patent/WO1995012753A1/fr not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9512753A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5694891A (en) | 1997-12-09 |
DE4337670C2 (de) | 1995-10-05 |
WO1995012753A1 (fr) | 1995-05-11 |
DE4337670A1 (de) | 1995-05-18 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19960528 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT ES FR GB IT SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19961115 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970701 |