FR2619856A2 - Device for varying, while running, the volume of the combustion chamber of internal combustion engines - Google Patents
Device for varying, while running, the volume of the combustion chamber of internal combustion engines Download PDFInfo
- Publication number
- FR2619856A2 FR2619856A2 FR8711998A FR8711998A FR2619856A2 FR 2619856 A2 FR2619856 A2 FR 2619856A2 FR 8711998 A FR8711998 A FR 8711998A FR 8711998 A FR8711998 A FR 8711998A FR 2619856 A2 FR2619856 A2 FR 2619856A2
- Authority
- FR
- France
- Prior art keywords
- spark plug
- injector
- fixed
- screw
- wire
- 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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- 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
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/041—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning
- F02B75/042—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning the cylinderhead comprising a counter-piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
-
- 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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/241—Cylinder heads specially adapted to pent roof shape of the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
Abstract
Description
La présente addition concerne un perfectionnement à l'objet du brevet d'invention principal no 86.03483 demandé le 12 mars 1986. This addition relates to an improvement to the subject of main patent No. 86.03483 requested on March 12, 1986.
Ce dispositif permet d'augmenter considérablement la puissance spécifique des moteurs tout en assurant un excellent rendement. Cependant, il est désirable que les moteurs, qui en sont équipés, respirent très largement. Pour cela, il importe de ménager, dans la culasse, un maximum de place pour les soupapes et de les disposer au mieux. C'est un objectif de la présente addition. This device considerably increases the specific power of the engines while ensuring excellent efficiency. However, it is desirable that the engines, which are equipped with it, breathe very widely. For this, it is important to provide, in the cylinder head, a maximum of space for the valves and to arrange them as well as possible. This is an objective of this addition.
D'autres caractéristiques de l'addition apparaitront au cours de la description qui suivra en se reportant aux dessins annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation actuellement préféré de l'addition et dans lesquels
- la figure 1 est une vue fragmentaire en coupe axiale d'un cylindre et de la culasse d'un moteur à combustion interne pourvu du perfectionnement conforme à l'addition
- la figure la est une vue en coupe transversale suivant la ligne Ia-Ia de la figure i
- la figure lb est une vue fragmentaire isolée de l'élément mobile auquel est incorporé la bougie d'allumage ou l'injecteur ;
- la figure 2 est semblable à la figure 1 mais montre un connecteur spécial pour le fil de bougie d'allumage
- la figure 2a est une vue fragmentaire en coupe représentant un connecteur pour fil de bougie ;;
- la figure 2b est une vue fragmentaire en coupe représentant un connecteur pour tube d'injection
- la figure 3 est une vue semblable à la figure 1 ou 2 mais représentant une variante ; et
- la figure 4 est une vue semblable à la figure 3 mais représentant une autre variante.Other characteristics of the addition will appear during the description which follows with reference to the appended drawings given solely by way of example illustrating a currently preferred embodiment of the addition and in which
- Figure 1 is a fragmentary view in axial section of a cylinder and the cylinder head of an internal combustion engine provided with the improvement according to the addition
- Figure la is a cross-sectional view along line Ia-Ia of Figure i
- Figure lb is a fragmentary isolated view of the movable member which is incorporated in the spark plug or the injector;
- Figure 2 is similar to Figure 1 but shows a special connector for the spark plug wire
- Figure 2a is a fragmentary sectional view showing a connector for spark plug wire;
- Figure 2b is a fragmentary sectional view showing a connector for an injection tube
- Figure 3 is a view similar to Figure 1 or 2 but showing a variant; and
- Figure 4 is a view similar to Figure 3 but showing another variant.
La figure 1 montre schématiquement un dispositif dans lequel la bougie d'allumage 30 ou l'injecteur, est
soit placé dans l'élément mobile ou petit piston 3, soit incorporé à celui-ci en en formant une partie intégrante 32. La bougie d'allumage 30 ou l'injecteur est placé au centre de l'élément mobile ou petit piston 3 qui voyage verticalement dans l'axe du cylindre moteur.FIG. 1 schematically shows a device in which the spark plug 30 or the injector is
either placed in the mobile element or small piston 3, or incorporated therein forming an integral part 32. The spark plug 30 or the injector is placed in the center of the mobile element or small piston 3 which travels vertically in the axis of the engine cylinder.
Cette disposition centrale de la bougie ou de l'injecteur permet de disposer les soupapes, dans la culasse, tout autour de la bougie ou de l'injecteur. This central arrangement of the spark plug or the injector allows the valves to be placed in the cylinder head, all around the spark plug or the injector.
Le plateau 33 fait corps avec une partie tubulaire 34 filetée intérieurement et est muni d'ergots 35 coulissant dans des rainures 31 pratiquées dans le boîtier 5. Le plateau 33 est vissé sur le petit piston 3. Grâce à ces ergots et à ces rainures, le plateau 33 et le petit piston 3 ne peuvent pas tourner. Quand la vis 6, entratnée par l'élément de transmission 8, tourne dans un sens ou dans l'autre, le petit piston 3 monte ou descend. The plate 33 is integral with a tubular part 34 internally threaded and is provided with lugs 35 sliding in grooves 31 made in the housing 5. The plate 33 is screwed on the small piston 3. Thanks to these lugs and these grooves, the plate 33 and the small piston 3 cannot rotate. When the screw 6, driven by the transmission element 8, turns in one direction or the other, the small piston 3 goes up or down.
La bougie ou l'injecteur, étant fixé au plateau 33, voyage avec celui-ci et avec le petit piston 3 dont les déplacements font varier le volume de la chambre de combustion 9. Ce volume augmente quand la bougie ou l'injecteur monte et ce volume diminue quand la bougie ou l'injecteur descend. L'invention prévoit un moyen de relier la bougie au distributeur d'allumage ou l'injecteur à la pompe d'injection, de manière adéquate pendant ces déplacements. The spark plug or the injector, being fixed to the plate 33, travels with the latter and with the small piston 3 whose movements vary the volume of the combustion chamber 9. This volume increases when the spark plug or the injector rises and this volume decreases when the candle or the injector descends. The invention provides a means of connecting the spark plug to the ignition distributor or the injector to the injection pump, in an appropriate manner during these movements.
Le fil de la bougie ou le tube d'injection est rigide à partir de la bougie ou de l'injecteur, passe en biais dans le plateau 33 auquel est fixé puis devient vertical en 36 et entre dans un connecteur spécial 37 fixé au bottier 5 pour être connecté, à l'extérieur du dispositif, à un fil venant du distributeur d'allumage ou à un tube venant de la pompe d'injection.The wire of the spark plug or the injection tube is rigid from the spark plug or the injector, passes obliquely into the plate 33 to which is fixed then becomes vertical at 36 and enters a special connector 37 fixed to the case 5 to be connected, outside the device, to a wire coming from the ignition distributor or to a tube coming from the injection pump.
La figure 2 montre schématiquement ce connecteur spécial 37 dans lequel s'engage un fil de bougie rigide. Figure 2 shows schematically this special connector 37 in which engages a rigid spark plug wire.
La figure 2a schématise un connecteur pour fil de bougie. Figure 2a shows schematically a connector for spark plug wire.
La figure 2b schématise un connecteur pour tube d'injection. Figure 2b shows a connector for an injection tube.
La figure 3 montre une variante dans laquelle l'invention prévoit un fil de bougie - ou un tube d'injection - droit, vertical et rigide depuis la bougie ou l'injecteur, passant par le plateau 33 dans lequel il est fixé, ce qui ne pose pas de problème puisque le plateau 33 et le fil de bougie - ou le tube d'injection - rigide voyagent ensemble ; plus haut, le fil de bougie - le tube d'injection - toujours rigide, tout droit et vertical, passe par le centre du plateau 33 puis librement et facilement par un canal cylindrique foré dans la vis 6 puis par un trou percé dans l'élément de transmission 8 ou 48 (figure 3 et 4) fixé sur cette vis 6.Le fil de bougie - ou le tube d'injection - reste rigide Jusqu'à sa partie supérieure qui est connectée : soit à un fil de bougie - ou un tube d'injection - flexible, venant respectivement du distributeur d'allumage ou de la pompe d'injection, soit à un connecteur spécial schématisé aux figures 2a (fil) et 2b (tube). Figure 3 shows a variant in which the invention provides a spark plug wire - or an injection tube - straight, vertical and rigid from the spark plug or the injector, passing through the plate 33 in which it is fixed, which not a problem since the plate 33 and the spark plug wire - or the rigid injection tube - travel together; higher, the spark plug wire - the injection tube - always rigid, straight and vertical, passes through the center of the plate 33 then freely and easily through a cylindrical channel drilled in the screw 6 then through a hole drilled in the transmission element 8 or 48 (FIGS. 3 and 4) fixed on this screw 6. The spark plug wire - or the injection tube - remains rigid Up to its upper part which is connected: either to a spark plug wire - or an injection tube - flexible, coming respectively from the ignition distributor or from the injection pump, or to a special connector shown diagrammatically in FIGS. 2a (wire) and 2b (tube).
Le dispositif comporte, en cas d'allumage par bougie, un connecteur spécial (figure 2a) composé d'un bottier 38 en bakélite ou en une autre matière isolante dans lequel voyage l'extrémité du fil de bougie rigide sur laquelle est soudée une électrode métallique 39 qui voyage verticalement le long d'une plaquette métallique 40, bonne conductrice, noyée dans la paroi de gauche (sur la figure 2a) du bottier 38 et pourvue d'une connexion 40a-40b au fil de bougie venant du distributeur d'allumage. The device comprises, in the event of ignition by candle, a special connector (FIG. 2a) composed of a boot 38 made of bakelite or another insulating material in which the end of the rigid candle wire travels on which an electrode is welded metal 39 which travels vertically along a metal plate 40, good conductor, embedded in the left wall (in Figure 2a) of the shoemaker 38 and provided with a connection 40a-40b to the spark plug wire coming from the distributor ignition.
Dans le cas de l'allumage par compression comme dans les moteurs Diesel, le dispositif comporte un connecteur spécial (figure 2b) dont la pièce principale est une gaine 41 en acier à haute résistance dans laquelle voyage, verticalement, l'extrémité du tube d'injection en passant par une boIte à bourrage 42 faisant corps avec la gaine 41, laquelle possède, à sa partie supérieure, une sortie 43 prévue pour connexion à un tube d'injection venant de la pompe d'injection du moteur. In the case of compression ignition as in diesel engines, the device comprises a special connector (Figure 2b) whose main part is a sheath 41 of high strength steel in which travels, vertically, the end of the tube d injection through a stuffing box 42 integral with the sheath 41, which has, at its upper part, an outlet 43 provided for connection to an injection tube coming from the injection pump of the engine.
Dans la boute à bourrage 42 se trouvent des joints annulaires dont la section est en U, lesquels assurent l'étanchéité par le fait que la pression, exercée par le carburant, applique les parties verticales du U contre les parois intérieures-de la botte à bourrage et contre la paroi extérieure du tube d'injection à l'endroit de son passage dans les joints. In the stuffing bottle 42 there are annular seals, the cross section of which is U-shaped, which ensure that the pressure exerted by the fuel presses the vertical parts of the U against the inner walls of the boot. jamming and against the outside wall of the injection tube at the point of its passage through the seals.
L'invention prévoit l'utilisation de bougies ou d'injecteurs formant eux-mêmes les éléments mobiles ou petits pistons 3 et dont la hauteur sera réduite au minimum afin de diminuer l'encombrement en hauteur du moteur. The invention provides for the use of spark plugs or injectors themselves forming the mobile elements or small pistons 3 and the height of which will be reduced to a minimum in order to reduce the overall height of the engine.
Elle prévoit également la dépose facile et rapide de l'ensemble de la superstructure du dispositif fixée sur la culasse en desserrant simplement les écrous ou les vis qui fixent le boîtier 5 sur la culasse 2. En cas d'encrassement ou de défectuosité de la bougie ou de l'injecteur, il suffira de disposer d'un tel ensemble de rechange pour effectuer un dépannage immédiat. It also provides for quick and easy removal of the entire superstructure of the device attached to the cylinder head by simply loosening the nuts or screws which fix the housing 5 to the cylinder head 2. In the event of fouling or defective plug or the injector, it will suffice to have such a spare set for immediate troubleshooting.
La figure 3 montre schématiquement un dispositif pourvu d'un support ou carter 45 fixé ou monté sur le bottier 5 et qui supporte le connecteur spécial 37 et comporte un bossage 49 dans lequel se trouve un coussinet 50. FIG. 3 schematically shows a device provided with a support or casing 45 fixed or mounted on the case 5 and which supports the special connector 37 and comprises a boss 49 in which there is a bearing 50.
Dans le coussinet 50 tourne un arbre 51 entraîné par l'élément de transmission 8 et commandant la vis 6 par l'intermédiaire des engrenages d'angle 47 et 48. In the bearing 50 turns a shaft 51 driven by the transmission element 8 and controlling the screw 6 via the angle gears 47 and 48.
La figure 4 montre schématiquement un dispositif pourvu d'un support ou carter 45 tel que décrit ci-dessus, dans lequel tourne l'arbre 51 accouplé par l'accouplement 52 à un servo-moteur 53 monté sur un support 54. FIG. 4 schematically shows a device provided with a support or casing 45 as described above, in which the shaft 51 rotates coupled by the coupling 52 to a servomotor 53 mounted on a support 54.
Le servo-moteur 53, asservi soit à l'accélérateur, soit à un système plus complexe comme, par exemple, un appareillage électronique, commande ou entrasse la vis 6 par l'intermédiaire des engrenages d'angle 47 et 48. The servo motor 53, slaved either to the accelerator, or to a more complex system such as, for example, electronic equipment, controls or braces the screw 6 via the angle gears 47 and 48.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8711998A FR2619856B2 (en) | 1986-03-12 | 1987-08-27 | DEVICE FOR VARIATION, ON THE GO, OF THE VOLUME OF THE COMBUSTION CHAMBER OF INTERNAL COMBUSTION ENGINES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8603483A FR2595760B1 (en) | 1986-03-12 | 1986-03-12 | DEVICE FOR VARIATION, IN OPERATION, OF THE VOLUME OF THE COMBUSTION CHAMBER OF INTERNAL COMBUSTION ENGINES |
FR8711998A FR2619856B2 (en) | 1986-03-12 | 1987-08-27 | DEVICE FOR VARIATION, ON THE GO, OF THE VOLUME OF THE COMBUSTION CHAMBER OF INTERNAL COMBUSTION ENGINES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2619856A2 true FR2619856A2 (en) | 1989-03-03 |
FR2619856B2 FR2619856B2 (en) | 1990-08-03 |
Family
ID=26225077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8711998A Expired - Lifetime FR2619856B2 (en) | 1986-03-12 | 1987-08-27 | DEVICE FOR VARIATION, ON THE GO, OF THE VOLUME OF THE COMBUSTION CHAMBER OF INTERNAL COMBUSTION ENGINES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2619856B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5031582A (en) * | 1989-04-26 | 1991-07-16 | Volkswagen Ag | Internal combustion engine providing scavenging with combustion chamber volume control |
WO1992003647A2 (en) * | 1990-08-24 | 1992-03-05 | Alex Matesic | Single piece internal combustion engine with removable inlet/exhaust system |
US6202604B1 (en) * | 2000-01-10 | 2001-03-20 | Craig D. Silvers | Maximum compression spark plug |
CN105201658A (en) * | 2014-06-18 | 2015-12-30 | 福特环球技术公司 | Method and system for adjusting a compression ratio |
CN107013325A (en) * | 2017-06-06 | 2017-08-04 | 林培青 | Automatically controlled variable compression ratio and the engine of oil spout position |
CN107013358A (en) * | 2017-06-06 | 2017-08-04 | 林培青 | Variable compressive piston |
CN107131071A (en) * | 2017-05-17 | 2017-09-05 | 石狮市恒鑫电子科技有限公司 | The cylinder head of variable compression ratio |
CN108119254A (en) * | 2017-05-17 | 2018-06-05 | 石狮市恒鑫电子科技有限公司 | Variable compressive piston |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR544931A (en) * | 1921-04-21 | 1922-10-03 | Anciens Etablissements Chenard | Improvements to single or multiple cylinder internal combustion engines |
FR769165A (en) * | 1934-02-24 | 1934-08-21 | Variable compression engine cylinder head | |
US2145017A (en) * | 1936-04-16 | 1939-01-24 | Tsuneda Kenjiro | Variable compression ratio internal combustion engine |
GB752895A (en) * | 1954-01-20 | 1956-07-18 | Armstrong Siddeley Motors Ltd | Supercharged, fuel-injection, two-stroke engines |
DE1576011A1 (en) * | 1967-11-24 | 1970-09-03 | Daimler Benz Ag | Pre-chamber injection internal combustion engine with variable compression ratio |
FR2402076A1 (en) * | 1977-09-05 | 1979-03-30 | Peugeot | Variable compression ratio IC engine - has second piston in cylinder head controlled by inlet depression |
WO1983000901A1 (en) * | 1981-09-07 | 1983-03-17 | Hedelin, Lars, G., B. | Method of controlling the combustion cycle in a combustion engine, and a combustion engine |
CA1149750A (en) * | 1982-02-08 | 1983-07-12 | Gerald J. Williams | Internal combustion engine with improved expansion ratio |
US4449489A (en) * | 1981-05-21 | 1984-05-22 | Williams Gerald J | Varying geometric compression ratio engine |
-
1987
- 1987-08-27 FR FR8711998A patent/FR2619856B2/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR544931A (en) * | 1921-04-21 | 1922-10-03 | Anciens Etablissements Chenard | Improvements to single or multiple cylinder internal combustion engines |
FR769165A (en) * | 1934-02-24 | 1934-08-21 | Variable compression engine cylinder head | |
US2145017A (en) * | 1936-04-16 | 1939-01-24 | Tsuneda Kenjiro | Variable compression ratio internal combustion engine |
GB752895A (en) * | 1954-01-20 | 1956-07-18 | Armstrong Siddeley Motors Ltd | Supercharged, fuel-injection, two-stroke engines |
DE1576011A1 (en) * | 1967-11-24 | 1970-09-03 | Daimler Benz Ag | Pre-chamber injection internal combustion engine with variable compression ratio |
FR2402076A1 (en) * | 1977-09-05 | 1979-03-30 | Peugeot | Variable compression ratio IC engine - has second piston in cylinder head controlled by inlet depression |
US4449489A (en) * | 1981-05-21 | 1984-05-22 | Williams Gerald J | Varying geometric compression ratio engine |
WO1983000901A1 (en) * | 1981-09-07 | 1983-03-17 | Hedelin, Lars, G., B. | Method of controlling the combustion cycle in a combustion engine, and a combustion engine |
CA1149750A (en) * | 1982-02-08 | 1983-07-12 | Gerald J. Williams | Internal combustion engine with improved expansion ratio |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5031582A (en) * | 1989-04-26 | 1991-07-16 | Volkswagen Ag | Internal combustion engine providing scavenging with combustion chamber volume control |
WO1992003647A2 (en) * | 1990-08-24 | 1992-03-05 | Alex Matesic | Single piece internal combustion engine with removable inlet/exhaust system |
WO1992003647A3 (en) * | 1990-08-24 | 1992-04-02 | Alex Matesic | Single piece internal combustion engine with removable inlet/exhaust system |
US6202604B1 (en) * | 2000-01-10 | 2001-03-20 | Craig D. Silvers | Maximum compression spark plug |
CN105201658A (en) * | 2014-06-18 | 2015-12-30 | 福特环球技术公司 | Method and system for adjusting a compression ratio |
CN107131071A (en) * | 2017-05-17 | 2017-09-05 | 石狮市恒鑫电子科技有限公司 | The cylinder head of variable compression ratio |
CN108119254A (en) * | 2017-05-17 | 2018-06-05 | 石狮市恒鑫电子科技有限公司 | Variable compressive piston |
CN107013325A (en) * | 2017-06-06 | 2017-08-04 | 林培青 | Automatically controlled variable compression ratio and the engine of oil spout position |
CN107013358A (en) * | 2017-06-06 | 2017-08-04 | 林培青 | Variable compressive piston |
Also Published As
Publication number | Publication date |
---|---|
FR2619856B2 (en) | 1990-08-03 |
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