EP1012456A1 - Internal combustion engine comprising means for recirculating exhaust and turbo boost gases - Google Patents
Internal combustion engine comprising means for recirculating exhaust and turbo boost gasesInfo
- Publication number
- EP1012456A1 EP1012456A1 EP98942834A EP98942834A EP1012456A1 EP 1012456 A1 EP1012456 A1 EP 1012456A1 EP 98942834 A EP98942834 A EP 98942834A EP 98942834 A EP98942834 A EP 98942834A EP 1012456 A1 EP1012456 A1 EP 1012456A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- exhaust
- valve
- branch
- manifold
- 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- Withdrawn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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
-
- 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
- F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
-
- 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
- F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
- F02B27/04—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues in exhaust systems only, e.g. for sucking-off combustion gases
- F02B27/06—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues in exhaust systems only, e.g. for sucking-off combustion gases the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
-
- 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
-
- 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
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to an internal combustion engine comprising means for recirculating exhaust gases and supercharging.
- the present invention therefore has as an object an internal combustion engine devoid of mechanical supercharging means comprising n cylinders each provided with a reciprocating translation piston, each cylinder being equipped with q exhaust valves and r valves intake, q and r being integers greater than or equal to 1, possibly different from one cylinder to another, each cylinder having, in an operating cycle, a filling of air and fuel, combustion with expansion subsequent supplying the energy delivered by the engine and an exhaust to evacuate the burnt gases, the exhaust valves of n cylinders being connected to p branches of exhaust manifold so that, on the same branch of manifold, one connects n '' cylinders with n ' ⁇ n and p ⁇ n, characterized in that each branch of the exhaust manifold is connected to the outlet of the exhaust gases by a closure member and is connected to the atmosphere by at least one valve in the open air and that each cylinder of the engine comprises, over part of its operating cycle, three successive phases ⁇ l, ⁇ l, ⁇ 3, the n '
- said shutter member is closed as well as the valve (s) for venting said collector branch, all the intake valves are closed, at least one exhaust valve is open; at least one other cylinder C among the n 'of the same manifold branch has at least one open exhaust valve and is in its exhaust gas emptying phase, its piston rising towards its top dead center, the pressure wave, which, in said manifold branch, comes from cylinder C in exhaust, pushing air and possibly burnt gases into cylinder C, which is not in exhaust;
- said shutter member is open, the valve (s) for venting is (or are) closed, the exhaust and intake valves of cylinder C are closed, the piston of cylinder C rises to its top dead center while cylinder C, connected to the same manifold branch, has at least one of its exhaust valves open, all of its intake valves being closed, the ascent of the piston of the cylinder C towards its top dead center causing the emptying of its burnt gases through the shutter member; after which the cylinder C, during compression, goes into the combustion phase, its piston then being pushed back, by expansion of the burnt gases, towards its bottom dead center until returning to the start of phase ⁇ l of its cycle.
- the engine according to the invention is characterized in that it comprises: at least one exhaust manifold branch connecting at least two associated cylinders in which the pistons perform the same movement towards top dead center or towards point low death; said exhaust manifold branch being, on the one hand, provided with at least one venting valve piloted by any suitable means and, on the other hand, connected to the gas outlet pipe exhaust with interposition of a shutter member, also controlled by any appropriate means; the intake, exhaust and vent valves and the shutter members being controlled in synchronism so that it occurs in the engine: air intake by the intake valve a cylinder performing the admission time; suction by the exhaust valve of said cylinder of the exhaust gases located in the branch of the manifold associated with the cylinder with air intake in said branch by the vent valve; then pushed into said cylinder through said air exhaust valve previously admitted into the manifold branch by the vent valve, by the effect of a burst of pressure from the burnt gases of another cylinder associated, the exhaust valve of the latter being open, which achieves a supercharging
- the engine according to the invention is a four-cylinder engine operating in a four-stroke cycle, said cylinders being synchronized according to the system 1, 3,4,2, said engine comprising two manifold branches each associating a pair of cylinders , each manifold branch comprising at least one vent valve and being connected to the discharge of exhaust gases with the interposition of a shutter member so that during the operating cycle of the engine, there occurs: a) an intake of air by the intake valve (s) of the first cylinder performing the intake time; b) a suction, by the exhaust valve (s) of said first cylinder, of the exhaust gases located in the exhaust manifold branch associated with said first cylinder, at least one interlock valve the free air of said collector branch being open; c) a suction in said exhaust manifold branch of a certain amount of air; d) the opening of the cylinder exhaust valve (s) advantageously connected to the first cylinder with introduction into the corresponding manifold branch of a pressure wave which pushes into the first cylinder
- the shutter member B is controlled by any suitable means making it possible to determine at will the time and duration of its opening and closing.
- the shutter member comprises a rotary plug provided with two openings separated by two zones, associated or not with a phase shift system, so that by determining the speed of rotation of the plug and the dimensions of the openings , we can determine at will the time and duration of its opening and closing.
- the shutter member is a rotating disc comprising two pairs of orifices, the orifices of the two pairs being symmetrical with respect to the axis of the disc, but at different distances from this axis.
- each vent valve is controlled by any suitable means making it possible to determine the moment and the duration of its opening and closing.
- a vent valve is actuated at the opening by the vacuum prevailing in the branch of the exhaust manifold, on which it is located.
- FIG. 1 to 3 show, schematically, two cylinders of an internal combustion injection engine comprising four cylinders and operating according to a four-stroke cycle, the cylinders operating in the usual manner in the order 1, 3, 4 , 2, these three figures representing three successive operating phases of said engine;
- FIG. 4 shows, schematically in plan, an engine according to the invention of the type shown in Figures 1 to 3;
- FIG. 5 shows, schematically in perspective, a first embodiment of a shutter member usable for the engine of Figure 4;
- FIG. 6 shows, schematically in perspective, a second embodiment of a shutter member usable for the engine of Figure 4;
- - Figure 7 schematically shows the shutter member of Figure 6 seen along the axis of its rotating disc;
- FIG. 8 shows the valve liftings L in cylinders 1 and 4 shown in Figures 1 to 3, depending on the angle of rotation ⁇ of the crankshaft throughout the duration of a cycle as well as the opening phases and closing the shutter member (curve 20), on the one hand, and the vent valve (curve 30), on the other hand, the open and closed positions for these two curves being identified respectively by the letters O and F; the valve lift curves for cylinder 4 are shown at the top of the graph, the curves for cylinder 1 being arranged below the previous ones but above curve 20; the valve lifts relating to each of the intake and exhaust valves are marked with indication of the valve concerned.
- FIG. 4 it can be seen that the cylinders Cl and C4 are coupled to each other by a branch of identical length of manifold D while the cylinders C2 and C3 are coupled to each other by a branch of identical length of collector D '.
- the manifold branches D and D ' are connected to a shutter member B, the movable part of which is driven by the engine crankshaft; this drive is carried out by means of a transmission 11a, 11b, link shown diagrammatically in the form of a system of pulleys and belts in FIG. 4, the drive also taking place via a phase shifter system 12, which allows to shift the drive of the movable part of the shutter member relative to the crankshaft.
- the engine is supplied by a supply system 13.
- FIGS. 13 In the embodiment of FIGS.
- the cylinders Cl and C4 are coupled to one another by an exhaust manifold branch D which connects the valves El and E4 exhaust from cylinders Cl and C4.
- an additional valve SS for venting, said valve being piloted by any appropriate means 14.
- the manifold branch D communicates with the outlet pipe F of the exhaust gases by the intermediate of the shutter member B, which is controlled so as to be sometimes closed (see FIGS. 1 and 2) and sometimes open (see FIG. 3).
- a cylindrical plug which comprises a fixed cylinder in which a movable cylinder 10 which comprises two pairs of diametrically opposite lights B1 rotates on the cylinder; one of the light pairs moves to the right of the arrival of the branch D and the other to the right of the arrival of the collector branch D ', so that when a pair of lights is opposite from the outlet of a manifold branch, the exhaust gases can pass through the obstacle constituted by the movable cylinder 10 to join, on a generator opposite to that where the manifold branches D and D 'are fixed, the manifold exhaust F which must be wide enough to receive the gases from the orifices Bl.
- the lights Bl of the movable cylinder 10 are shown in the position where there is a connection between the manifold branch D 'and the exhaust outlet pipe F.
- the movable cylinder 10 is rotated by the device l ia, 11b, l ie, 12 shown in FIG. 4.
- FIG. 6 and 7 there is shown another embodiment of the shutter member B.
- the manifold branches D and D ' open on the basis of a truncated cone in front of which rotates a disc 15 which has two pairs of holes Bl, the holes of the two pairs being symmetrical with respect to the axis of the disc 15 but at different distances from this axis.
- One of the collector branches is connected to the base of the truncated cone so as to be in the path of the orifices Bl of one of the pairs while the other collector branch D ′ is connected to the base of the trunk of cone so as to be opposite the trajectory of the other pair of orifices Bl.
- the disc 15 can be driven in rotation by an electric motor 16 or by a system such as that shown in FIG. 4.
- FIGS. 1 to 3 The operation of the device which has just been described is shown diagrammatically in FIGS. 1 to 3 and the complete progress of the operating cycle is shown on the curves of FIG. 8.
- the operation comprises three successive phases ⁇ l, ⁇ 2, ⁇ 3.
- Each phase ⁇ i for cylinder 1 is designated by ( ⁇ i) l while each phase ⁇ i for cylinder 4 is designated by ( ⁇ i) 4.
- each of the 4 cylinders of the engine has a single intake valve (Aj for the cylinder of number j) and a single exhaust valve (Ej for the cylinder of number j).
- Aj for the cylinder of number j
- Ej for the cylinder of number j
- the pistons PI and P4 of cylinders Cl and C4 have just passed the bottom dead center and begin to go up in the cylinder.
- the intake valves A1 and A4 close and the two exhaust valves El and E4 are open.
- the burnt gases which are relaxed by pushing the piston P4, are still at a fairly high pressure (approximately 10 bars for a light load or 40 bars for a heavy load, the load corresponding to a position of accelerator).
- the pressure wave travels towards the cylinder Cl, the shutter member remaining closed, although it has rotated relative to the position of the phase ⁇ l.
- the pressure wave pushes back into the cylinder Cl the air which is in the branch of collector D and which was returned by the valve SS now closed; from which there results an overfeeding of the cylinder C1.
- the invention therefore allows both overfeeding and a reduction of pollution with nitrogen oxides thanks to EGR.
- valve SS In phase ⁇ 3, the valve SS remains closed but the valve B opens. Valves Al and El are closed.
- the valve A4 is also closed but the valve E4 remains open and the valve B is open.
- the exhaust gases from cylinder C4 pass through valve B and go to exhaust F.
- the piston P4 ensures the emptying of cylinder C4 and the piston PI ensures the compression of the air introduced into cylinder Cl until the fuel injection is carried out; after which, the combustion of the mixture takes place in the cylinder Cl, which is pushed towards the bottom dead center until reaching the position which had the cylinder C4 in the phase ⁇ l previously described.
- the shutter member B is constituted by a rotating plug comprising two orifices B1 separated by two solid parts B2. But this shutter member could also be constituted by a piloted valve or a piloted valve.
- the dimensions of the shutter parts B2 and of the opening parts Bl and the speed of rotation of the plug make it possible to determine at will the durations of the opening or closing periods.
- the plug of the shutter member B is shown in the closed position; but we can offset the opening of the plug by the phase shifter 12 and thus play on the importance of the EGR. after overeating.
- valves can be controlled from in any way, for example by a camshaft, by hydraulic or electromagnetic or pneumatic controls, or by a hybrid of these different solutions.
- the system can operate with any number n of cylinders (n being greater than 1) and with a number p of manifold branches D by connecting n 'cylinders on a branch, with n' ⁇ n and p ⁇ n.
- n being greater than 1
- p manifold branches
- Each of the p collector branches must be provided with a shutter member such as B. The operation is the same as that described previously in relation to FIGS. 1 to 3.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Characterised By The Charging Evacuation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9711294 | 1997-09-11 | ||
FR9711294A FR2768178B1 (en) | 1997-09-11 | 1997-09-11 | INTERNAL COMBUSTION ENGINE COMPRISING MEANS FOR RECIRCULATION OF EXHAUST AND SUPPLY GASES |
PCT/FR1998/001908 WO1999013205A1 (en) | 1997-09-11 | 1998-09-07 | Internal combustion engine comprising means for recirculating exhaust and turbo boost gases |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1012456A1 true EP1012456A1 (en) | 2000-06-28 |
Family
ID=9510970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98942834A Withdrawn EP1012456A1 (en) | 1997-09-11 | 1998-09-07 | Internal combustion engine comprising means for recirculating exhaust and turbo boost gases |
Country Status (9)
Country | Link |
---|---|
US (1) | US6308666B1 (en) |
EP (1) | EP1012456A1 (en) |
JP (1) | JP2001515986A (en) |
KR (1) | KR20010023886A (en) |
CN (1) | CN1269866A (en) |
AU (1) | AU9081598A (en) |
BR (1) | BR9812636A (en) |
FR (1) | FR2768178B1 (en) |
WO (1) | WO1999013205A1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2780099B1 (en) * | 1998-06-22 | 2001-01-05 | Daniel Drecq | TWO-STROKE INTERNAL COMBUSTION ENGINE HAVING A PARTIAL EXHAUST GAS SUPPLY AND RECIRCULATION DEVICE |
US7028648B2 (en) * | 2001-04-09 | 2006-04-18 | Daihatsu Motor Co., Ltd. | Multiple cylinder internal combustion engine |
JP3956783B2 (en) * | 2002-07-02 | 2007-08-08 | マツダ株式会社 | Control device for spark ignition engine |
JP3846393B2 (en) * | 2002-09-30 | 2006-11-15 | マツダ株式会社 | Control device for spark ignition engine |
US6880500B2 (en) * | 2002-10-04 | 2005-04-19 | Honeywell International, Inc. | Internal combustion engine system |
JP3885206B2 (en) * | 2002-11-11 | 2007-02-21 | 胡 龍潭 | Eight stroke internal combustion engine |
FR2857697B1 (en) * | 2003-07-15 | 2006-01-21 | Inst Francais Du Petrole | FOUR-STAGE SUPERIOR INTERNAL COMBUSTION ENGINE WITH VARIABLE VOLUME EXHAUST GAS EXHAUST DEVICE AND METHOD OF OPERATING SAME |
EP1628014B1 (en) * | 2004-08-19 | 2014-12-03 | Perkins Engines Company Limited | Exhaust manifold arrangement |
US7753037B2 (en) * | 2004-10-20 | 2010-07-13 | Koichi Hatamura | Engine |
US7213553B2 (en) * | 2004-11-12 | 2007-05-08 | Detroit Diesel Corporation | Internal EGR for an internal combustion engine |
GB0506006D0 (en) | 2005-03-23 | 2005-04-27 | Howes Jonathan S | Apparatus for use as a heat pump |
US8468800B2 (en) * | 2007-02-09 | 2013-06-25 | Koichi Hatamura | Secondary air and exhaust gas recirculation for a four-stroke internal combustion engine |
DE102007033675A1 (en) * | 2007-07-17 | 2009-01-22 | Pierburg Gmbh | Exhaust gas recirculation device for an internal combustion engine |
DE102007033679B4 (en) | 2007-07-19 | 2009-07-09 | Mtu Friedrichshafen Gmbh | Exhaust pipe of an internal combustion engine |
DE102008024571B4 (en) | 2008-05-21 | 2010-03-04 | Pierburg Gmbh | Exhaust gas recirculation device for an internal combustion engine |
DE102011018249A1 (en) | 2011-04-19 | 2014-01-02 | Pierburg Gmbh | Exhaust gas retainer assembly for an internal combustion engine and method for controlling an internal combustion engine with such an exhaust gas retainer assembly |
CN102852633A (en) * | 2011-08-18 | 2013-01-02 | 摩尔动力(北京)技术股份有限公司 | Unequal loading capacity piston-type thermal power system |
US9551288B2 (en) * | 2012-06-29 | 2017-01-24 | Ford Global Technologies, Llc | Method and system for pre-ignition control |
EP3171013B1 (en) * | 2015-11-17 | 2019-08-14 | Volvo Car Corporation | Tunable intake system for exhaust gas recirculation in an internal combustion engine |
KR101886095B1 (en) * | 2016-08-04 | 2018-08-07 | 현대자동차 주식회사 | Engine system having egr apparatus |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924576A (en) * | 1972-05-12 | 1975-12-09 | Gen Motors Corp | Staged combustion engines and methods of operation |
FR2413547A1 (en) * | 1977-12-29 | 1979-07-27 | Ruyer Charles | IMPROVED REDUCED LOAD OPERATING CYCLE FOR FOUR STROKE EXPLOSION ENGINES AND ENGINES USING THIS CYCLE |
DE3125647A1 (en) * | 1981-06-30 | 1983-01-13 | Robert Bosch Gmbh, 7000 Stuttgart | "INTERNAL COMBUSTION ENGINE WITH SEVERAL CYLINDERS" |
FR2512496A1 (en) * | 1981-09-10 | 1983-03-11 | Semt | METHOD FOR THE AMENAGEMENT OF THE OPERATING CONDITIONS OF AN INTERNAL COMBUSTION ENGINE AND A MOTOR THUS DONE |
DE3142891A1 (en) * | 1981-09-21 | 1983-05-11 | Volkswagenwerk Ag, 3180 Wolfsburg | Internal combustion engine, especially for motor vehicles, with utilisation of the exhaust gas pressure to improve the cylinder charging |
DE3137454A1 (en) * | 1981-09-21 | 1983-03-31 | Volkswagenwerk Ag, 3180 Wolfsburg | Internal combustion engine, especially for motor vehicles, with the exhaust gas pressure used to improve the cylinder charging |
BE1000774A5 (en) * | 1987-07-30 | 1989-04-04 | Schmitz Gerhard | SIX - TIME INTERNAL COMBUSTION ENGINE. |
FR2712922B1 (en) * | 1993-11-22 | 1996-01-05 | Remi Curtil | Method for improving the operation of a supercharged and air-swept heat engine, and heat engine arranged for implementing the process. |
JP3852142B2 (en) * | 1996-10-24 | 2006-11-29 | いすゞ自動車株式会社 | Exhaust gas recirculation device |
-
1997
- 1997-09-11 FR FR9711294A patent/FR2768178B1/en not_active Expired - Fee Related
-
1998
- 1998-09-07 BR BR9812636-9A patent/BR9812636A/en not_active Application Discontinuation
- 1998-09-07 US US09/485,811 patent/US6308666B1/en not_active Expired - Fee Related
- 1998-09-07 EP EP98942834A patent/EP1012456A1/en not_active Withdrawn
- 1998-09-07 WO PCT/FR1998/001908 patent/WO1999013205A1/en not_active Application Discontinuation
- 1998-09-07 JP JP2000510970A patent/JP2001515986A/en active Pending
- 1998-09-07 CN CN98808970A patent/CN1269866A/en active Pending
- 1998-09-07 KR KR1020007002569A patent/KR20010023886A/en not_active Application Discontinuation
- 1998-09-07 AU AU90815/98A patent/AU9081598A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9913205A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1269866A (en) | 2000-10-11 |
AU9081598A (en) | 1999-03-29 |
FR2768178B1 (en) | 1999-11-19 |
FR2768178A1 (en) | 1999-03-12 |
US6308666B1 (en) | 2001-10-30 |
WO1999013205A1 (en) | 1999-03-18 |
KR20010023886A (en) | 2001-03-26 |
JP2001515986A (en) | 2001-09-25 |
BR9812636A (en) | 2000-08-22 |
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