EP0959233B1 - Moteur à combustion interne équipé d'un compresseur - Google Patents
Moteur à combustion interne équipé d'un compresseur Download PDFInfo
- Publication number
- EP0959233B1 EP0959233B1 EP99401038A EP99401038A EP0959233B1 EP 0959233 B1 EP0959233 B1 EP 0959233B1 EP 99401038 A EP99401038 A EP 99401038A EP 99401038 A EP99401038 A EP 99401038A EP 0959233 B1 EP0959233 B1 EP 0959233B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- compressor
- internal combustion
- combustion engine
- cylinder head
- 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.)
- Expired - Lifetime
Links
Images
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
- F02B33/22—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
Definitions
- the present invention relates to an internal combustion engine comprising at least one cylinder associated with a fuel air injection compressor under pressure in the combustion chamber of this cylinder.
- motors of this type in which the compressor is adapted to draw carburetted air through a suction pipe fitted with a first shutter and for discharging carburetted air under pressure in the combustion chamber through a discharge pipe fitted with a second shutter.
- the object of the invention is therefore to solve these problems.
- the invention relates to an internal combustion engine of the two-stroke and scanning type comprising at least one cylinder associated with an air injection compressor fuel under pressure in the combustion chamber of this cylinder, this compressor being adapted for sucking fuel air through a suction pipe fitted with a first shutter and to discharge pressurized carburetted air into the combustion chamber through a discharge pipe fitted with a second shutter, characterized in that the suction duct and the discharge duct are formed in a cylinder head arranged on a cylinder block of the engine in which the cylinder and the compressor are arranged side by side and in this at least the second shutter is formed by a blade valve detachably attached to a support piece removably engaged in a cylinder head well in the path of the conduit discharge between the compressor and the combustion chamber, to facilitate maintenance of this valve.
- This engine comprises at least one cylinder designated by the reference general 2, associated with a compressed air injection compressor 3 in the combustion chamber 4 of this cylinder.
- Compressor 3 is suitable for vacuuming from everything suitable supply device (not shown), fuel air through a suction duct designated by general reference 6, provided with a first shutter, designated by the general reference 7, and to discharge fuel air under pressure in the combustion chamber 4, through a discharge pipe, designated by the general reference 8, provided with a second shutter designated by the general reference 9.
- the discharge conduit 8 is formed in a cylinder head designated by the general reference 10, arranged on a cylinder block 11 of this engine and the second shutter designated by the general reference 9, is formed by a reed valve carried by a support piece designated by the reference general 12, engaged in a well designated by the general reference 13 of the cylinder head 10, in the path of the discharge conduit between the compressor 3 and the combustion chamber 4.
- the suction duct 6 is also provided for example in the cylinder head 10 of this engine.
- cylinder 2 and the compressor 3 are arranged side by side in the engine cylinder block and the first shutter designated by the general reference 7, can be formed by a valve integral with a cylinder head gasket designated by the general reference 14 in this figure, interposed between the cylinder head 10 and the cylinder block 11 of the engine.
- the support part 13 of the reed valve 9 is fixed so removable in the cylinder head well designated by the general reference 13.
- This fixing can for example be ensured by screwing means materialized by mixed lines designated by the general reference 15 on this figure.
- An O-ring designated by the general reference 16 can be provided between this support piece and the rest of the cylinder head to ensure a seal between these organs.
- the reed valve designated by the general reference 9 which can have any suitable structure, can also be fixed from removable way on the support piece 12.
- the fixing of this reed valve on the part can by example be provided by screwing means designated by the general reference 17 in this figure, associated with a clamping piece 18 of the valve on the rest of the support piece.
- the support piece has abutment surfaces, for example 19 and 20, delimiting the opening and closing positions of the reed valve, the valve moving between these surfaces according to the pressures on both sides of it.
- the delivery duct designated by the reference 8 opens into the combustion chamber 4 of the cylinder at level of a combustion stratification bowl designated by the general reference 21 in this figure and which is preferably provided in the cylinder head 10.
- the first shutter 7 closes, while the second shutter constituted by the reed valve 9, opens due to pressure in this compressor, to allow injection of pressurized carburetted air in the combustion chamber of the cylinder.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Check Valves (AREA)
Description
Claims (5)
- Moteur à combustion interne du type à deux temps et à balayage comportant au moins un cylindre (2) associé à un compresseur (3) d'injection d'air carburé sous pression dans la chambre de combustion (4) de ce cylindre, ce compresseur étant adapté pour aspirer de l'air carburé à travers un conduit d'aspiration (6) muni d'un premier obturateur (7) et pour refouler de l'air carburé sous pression dans la chambre de combustion à travers un conduit de refoulement (8) muni d'un second obturateur (9), caractérisé en ce que le conduit d'aspiration (6) et le conduit de refoulement (8) sont ménagés dans une culasse (10) disposée sur un bloc-cylindre (11) du moteur dans lequel sont ménagés côte à côte, le cylindre et le compresseur et en ce qu'au moins le second obturateur (9) est formé par un clapet à lame fixé de façon démontable sur une pièce de support (12) engagée de façon démontable dans un puits (13) de la culasse (10) dans le trajet du conduit de refoulement (8) entre le compresseur et la chambre de combustion, pour faciliter l'entretien de ce clapet.
- Moteur à combustion interne selon la revendication 1, caractérisé en ce que le premier obturateur (7) est formé par un clapet venu de matière avec un joint de culasse (14) interposé entre la culasse (10) et le bloc-cylindre (11 ) du moteur.
- Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce de support (12) comporte des surfaces de butée (19,20) délimitant des positions d'ouverture et de fermeture du clapet à lame.
- Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que le conduit de refoulement (8) débouche dans la chambre de combustion (4) du cylindre au niveau d'un bol de stratification (21) de la combustion.
- Moteur à combustion interne selon la revendication 4, caractérisé en ce que le bol de stratification (21) est prévu dans la culasse (10).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9806318A FR2778944B1 (fr) | 1998-05-19 | 1998-05-19 | Moteur a combustion interne equipe d'un compresseur |
FR9806318 | 1998-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0959233A1 EP0959233A1 (fr) | 1999-11-24 |
EP0959233B1 true EP0959233B1 (fr) | 2004-01-21 |
Family
ID=9526507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99401038A Expired - Lifetime EP0959233B1 (fr) | 1998-05-19 | 1999-04-28 | Moteur à combustion interne équipé d'un compresseur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0959233B1 (fr) |
DE (1) | DE69914253T2 (fr) |
ES (1) | ES2213989T3 (fr) |
FR (1) | FR2778944B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3885206B2 (ja) * | 2002-11-11 | 2007-02-21 | 胡 龍潭 | 八行程内燃機関 |
US8371256B2 (en) | 2009-05-27 | 2013-02-12 | GM Global Technology Operations LLC | Internal combustion engine utilizing dual compression and dual expansion processes |
US8646421B2 (en) | 2009-10-23 | 2014-02-11 | GM Global Technology Operations LLC | Engine with internal exhaust gas recirculation and method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4359017A (en) * | 1981-06-12 | 1982-11-16 | May Claude H | Internal combustion engine |
US4886424A (en) * | 1987-03-11 | 1989-12-12 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Multi-piston swash plate type compressor with damping arrangement for discharge reed valves |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB408075A (en) * | 1933-01-14 | 1934-04-05 | William George Goodwin | Improvements in the fuel supply to internal combustion engines of the compression ignition type |
DE807565C (de) * | 1949-03-15 | 1951-07-02 | Fritz Cockerell | Zweitaktmotor |
FR2449198A1 (fr) * | 1979-02-13 | 1980-09-12 | Soubis Jean Pierre | Perfectionnements au cycle de fonctionnement d'un moteur deux temps, et moteurs deux temps de type a piston d'equilibrage et a injection du melange carbure |
JPS59226229A (ja) * | 1983-06-07 | 1984-12-19 | Daihatsu Motor Co Ltd | 過給式多気筒内燃機関における過給用気筒の弁装置 |
-
1998
- 1998-05-19 FR FR9806318A patent/FR2778944B1/fr not_active Expired - Fee Related
-
1999
- 1999-04-28 ES ES99401038T patent/ES2213989T3/es not_active Expired - Lifetime
- 1999-04-28 DE DE69914253T patent/DE69914253T2/de not_active Expired - Lifetime
- 1999-04-28 EP EP99401038A patent/EP0959233B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4359017A (en) * | 1981-06-12 | 1982-11-16 | May Claude H | Internal combustion engine |
US4886424A (en) * | 1987-03-11 | 1989-12-12 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Multi-piston swash plate type compressor with damping arrangement for discharge reed valves |
Also Published As
Publication number | Publication date |
---|---|
DE69914253D1 (de) | 2004-02-26 |
DE69914253T2 (de) | 2004-11-04 |
FR2778944B1 (fr) | 2001-03-23 |
ES2213989T3 (es) | 2004-09-01 |
EP0959233A1 (fr) | 1999-11-24 |
FR2778944A1 (fr) | 1999-11-26 |
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