КЛАПАН ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

FIELD: internal combustion engines.SUBSTANCE: invention can be used in the internal combustion engines. Combination of valve (1) and seat (5) of valve for internal combustion engine of vehicle. Valve is gas outlet and/or gas exchange. Valve has valve stem (2) and valve plate (3). Valve plate has front surface (3.1) and rear surface (3.2). Front surface of valve plate is convex outside. Valve is made in form of solid valve. Neutral axis (4) of valve plate passes separate sections on side of load of imaginary base plane (BE). Base plane (BE) passes through effective center (M) of bearing surface (3.3) of valve on valve plate and across valve stem. Neutral axis of valve plate is convex in direction of load side (P). Area (4.1) of the neutral axis apex relative to the valve stem passes eccentrically. Disclosed is an industrial vehicle.EFFECT: technical result consists in reduction of valve and valve seat wear at low content of soot in exhaust gas and absence of hydrodynamic disadvantages.11 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 704 711 C2 (51) МПК F01L 3/20 (2006.01) F01L 3/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01L 3/02 (2018.08); F01L 3/06 (2018.08); F01L 3/08 (2018.08); F01L 3/22 (2018.08) (21)(22) Заявка: 2015131340, 28.07.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): МАН ТРАК УНД БАС АГ (DE) Дата регистрации: 30.10.2019 11.09.2014 DE 102014013503.9 (43) Дата публикации заявки: 31.01.2017 Бюл. № 4 (45) Опубликовано: 30.10.2019 Бюл. № 31 2 7 0 4 7 1 1 R U (54) КЛАПАН ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ (57) Реферат: Изобретение может быть использовано в через эффективную середину (М) опорной двигателях внутреннего сгорания. Комбинация поверхности (3.3) клапана на тарелке клапана и клапана (1) и седла (5) клапана для двигателя поперек стержня клапана. Нейтральная ось внутреннего сгорания автомобиля. Клапан тарелки клапана является выпуклой в является ...

Клапан для двигателя внутреннего сгорания

Zylinderkopf für eine Brennkraftmaschine

Verfahren und Vorrichtung zur Steuerung der Ventilbetätigung eines Kolbenmotors

Verfahren zum Betätigen eines Verbrennungsmotors (100) mit einem Kolben (108), aufweisend:Bewegen eines Auslassventils (140) während eines Kolbenhubs in eine erste geöffnete Stellung, um dem Auslassprodukt zu ermöglichen, durch eine Auslass-Öffnung (152) des Verbrennungsmotors (100) zu strömen;Halten des Auslassventils (140) in der ersten geöffneten Stellung für eine vorbestimmte Zeitspanne;Bewegen des Einlassventils (136) in eine zweite geöffnete Stellung während der vorbestimmten Zeitspanne, um dem Einlassprodukt zu ermöglichen durch eine Einlass-Öffnung (144) des Verbrennungsmotors (100) zu strömenBewegen des Auslassventils (140) in eine dritte geöffnete Stellung bevor das Auslassventil (140) in die erste geöffnete Stellung bewegt wird,wobei ein Hub des Auslassventils (140) in der ersten geöffneten Stellung im Wesentlichen gleich einem Hub des Einlassventils (136) in der zweiten geöffneten Stellung ist, undwobei ein Hub des Auslassventils (140) in der dritten geöffneten Stellung größer ...

Gasoline engine for vehicle, has cylinder in which piston moves longitudinally, for implementing operating cycle comprising multiple stroke between lower and upper dead centers

The gasoline engine has a cylinder in which a piston moves longitudinally for implementing an operating cycle has multiple strokes between lower and upper dead centers. A spark plug is provided for igniting the fuel in a combustion chamber in the range of the upper dead center of the piston. A surface (10) of the piston opposite to the combustion chamber or a gas exchange valve (18) or an inlet channel or a tulip valve or a cylinder head is partly provided with a relief (12). An independent claim is included for a method for the operation of a gasoline engine of a vehicle.

Articulated poppet valve assembly and operating system

Improvements in or relating to valves and valve gear of 4-stroke internal combustionengines

... 589,602. Valves and valve gear. NATIONAL GAS & OIL ENGINE CO., Ltd., SMITH, J., and JONES, J. July 11, 1944, No. 13260. [Classes 7 (ii) and 7 (vi)] In ,an engine in which the valves are duplicated, the inlet and exhaust valves 1, E alternate round the cylinder head and the inlet valves have shrouds a to promote swirl. Cam shafts D, F on each side of the engine operate the the valves by separate rockers. The inlet valve shrouds extend over an angle of about 60 degrees and swirl the charge in the same or opposite directions, and the passages leading to the valves may be arranged to assist the swirling. The valves are preferably fed by separate manifolds but there may be a single inlet or a single exhaust manifold. Specification 589,642 is referred to.

Improvements relating to valves for internal combustion engines

... 262,921. Armishaw, W., and Bailey, H. A. Dec. 1, 1925. valves.-In order to minimize the deteriorating effect of the hot gases on the valve stem, particularly of exhaust valves, a freely movable sleeve b is fitted to the stem between the valve head and guide. The sleeve may be fitted with vanes e, or may be grooved, so as to be rotated by the flow of gases. The sleeve may merely slide on the. stem without rotating.

Improvement with the engines with lighting order and heterogeneous food.

Improvement of the operating conditions of the engines with external carburation.

VENTILSITZEINSATZ

EINLASSKANAL FUR BRENNKRAFTMASCHINEN, INSBESONDERE DIESELMOTOREN

VALVE SEAT IN EXECUTION WITH SEVERAL CHAMFERS

GASWECHSELKANAL FÜR EINE BRENNKRAFTMASCHINE

GASWECHSELKANAL FÜR EINE BRENNKRAFTMASCHINE

Improvements to engines

VALVE

The invention is related to an arrangement that is designed to govern inlet and outlet gas mixtures and is used mainly in four stroke combustion engines. Already existing designees is of a nature that they limit the performance of the four-stroke engine mainly as a result of the weight and its flow-technical design. The invention resolve this problem mainly as a result of that the new valve is lighter and has a better flow-technical design. This is a result of that the new valve design allows both the inlet and outlet gas mixtures to flow inside and through the valve body (find drawing A2) thus as a result the valve design is lighter and has an higher efficiency due to the flow-technical design that allows for that no valve shaft is put in the middle of the flow path. The invention is mainly used in the transportation industry.

Vorrichtung zur Führung von Ventilen bei ihrer Hubbewegung

Soupape d'admission pour moteurs à combustion interne

Ventilgesteuerte Viertakt-Brennkraftmaschine mit direkter Brennstoffeinspritzung

Anordnung zur Erzeugung einer Drallbewegung der Zylinderfüllung einer Kolbenbrennkraftmaschine

Moteur à allumage commandé et à alimentation hétérogène

Moteur pourvu d'un dispositif pour l'admission de deux fluides distincts dans la chambre de combustion

MECHANISM FOR THE PRODUCTION OF A SPIN MOVEMENT OF THE CYLINDER LOAD IN A VALVE-STEERED PISTON COMBUSTION ENGINE.

CLAPPER SEAT FOR AN INLET CHANNEL OF VALVE-STEERED INTERNAL-COMBUSTION ENGINES.

Improvements brought to the mixture of two or several fluids and in particular to carburation in the engines

INLET CHANNEL OPENING IN THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE

Diesel internal combustion engine`s cylinder head, has deviation valve deviating gas flow to cooperate with head, to reduce section of gas passage from rear zone till front zone by forcing outlet of gas flow by rear zone

La présente invention concerne une culasse d'un moteur à combustion interne comportant une tête (51) de cylindre (5), pourvue de deux conduits d'admission de gaz (10, 100), chaque conduit comportant à proximité de son embouchure un logement destiné à accueillir un siège d'une tête d'une soupape et au-delà de ce logement, suivant le sens d'écoulement du gaz, une paroi conique facilitant l'insertion du siège dans ledit logement. Selon l'invention, au moins un des deux conduits d'admission de gaz comporte au-delà de la paroi conique, dans le sens de l'écoulement du flux de gaz (40), une paroi de déviation (14) du flux de gaz conformée pour, en coopération avec la tête de la soupape, diminuer progressivement la section de passage de gaz depuis une zone arrière (AR) située à proximité de la paroi latérale (52) du cylindre jusqu'à une zone avant (AV) située du côté du centre du cylindre afin de forcer la sortie du flux de gaz par cette zone arrière.

FOUR-STROKE ENGINE COMPRISING a SEPARATING BODY ON the DRAIN Of ADMISSION

Le moteur à combustion interne, à essence ou au gaz, de l'invention fonctionne selon un cycle à quatre temps; sa culasse comprend pour chaque cylindre une chambre de combustion (1), un conduit d'admission (1) et une soupape d'admission (6); il comporte une tubulure d'admission raccordée sur le conduit d'admission et munie d'un papillon (8) de réglage du débit et également un organe séparateur (9), placé dans le conduit et/ ou la tubulure d'admission entre la soupape (6) et le papillon (8), ledit organe (9) étant conformé en sorte de limiter le mélange des gaz de combustion et des gaz frais dans le conduit et la tubulure d'admission en fin du cycle d'échappement. L'organe séparateur (9) est conformé pour cloisonner la section transversale du conduit ou de la tubulure d'admission en sorte de diviser cette section en une pluralité de canalisations individuelles sur une longueur déterminée L; il s'agit par exemple d'une pièce flexible, comprimée lors de son introduction dans le conduit ou la ...

Inlet valve for internal combustion engines

INLOPPSKANAL TRAVELED FORBRENNINGSMOTORER, IN PARTICULAR DIESEL ENGINES, TRAVELED BRINGING FORTH OF A SWIRL in the cylinder report

DEVICE TO CONTROL the JET OF CARBIDE MIXTURE DELIVERS BY a PNEUMATIC SYSTEM Of INJECTION

DISPOSITIF D'ALIMENTATION D'UN MOTEUR A COMBUSTION ALTERNATIF EN MELANGE CARBURE. CE DISPOSITIF EST CARACTERISE EN CE QUE L'ORIFICE D'INJECTION 3 EST EQUIPE D'UN ORGANE DEFLECTEUR 5, 5A A 5D DU JET DE MELANGE CARBURE DELIVRE PAR LE SYSTEME D'INJECTION PNEUMATIQUE 8. APPLICATION A L'INJECTION PNEUMATIQUE DANS LES MOTEURS A COMBUSTION ALTERNATIFS.

INTERNAL COMBUSTION ENGINE INCLUDING/UNDERSTANDING OF the CONDUITS Of ADMISSION FACTORIES IN CHAMFER

Ce moteur (2) comprend un premier cylindre (6), un deuxième cylindre (6), et une culasse (4) formant avec chaque cylindre, une chambre de combustion, la culasse comportant :- au moins un premier et au moins un deuxième conduits d'admission de gaz débouchant sur une face de sortie de la culasse dans la chambre de combustion respectivement du premier et du deuxième cylindres, le ou chaque conduit comportant successivement, dans le sens orienté vers la face de sortie un siège de soupape adapté pour recevoir une soupape puis une embouchure vers la face de sortie.Les géométries de l'embouchure du premier conduit et de l'embouchure du deuxième conduit sont différentes et sont adaptées pour que le niveau de swirl dans le premier cylindre soit égal au niveau de swirl dans le deuxième cylindre. This engine (2) comprises a first cylinder (6), a second cylinder (6), and a cylinder head (4) forming with each cylinder, a combustion chamber, the cylinder head comprising: - at least a first and at least a second gas inlet ducts opening onto an outlet face of the cylinder head in the combustion chamber respectively of the first and second cylinders, the or each duct comprising successively, in the direction facing the outlet face, a valve seat adapted to receiving a valve and a mouth towards the outlet face. The geometries of the mouth of the first conduit and the mouth of the second conduit are different and are adapted so that the level of swirl in the first cylinder is equal to the level of swirl in the second cylinder.

PISTON ENGINE

PURPOSE: A piston engine is provided to obtain certain sealing lubricating effect in a region of a valve guide by improving a reciprocating piston engine through a simple and low cost way. CONSTITUTION: A piston engine includes at least one cylinder(1). A combustion chamber of the cylinder can be closed through at least one valve(5). The valve is disposed to the upper part and is guided by a valve housing(9) including a duct(8) connected to the combustion chamber. The valve can rise on a valve seat attached in the opposite direction of the force of a restoring device through a fluid control device positioned on the valve housing. Thus, sufficient sealing and lubricating effects are obtained by a simple method in a region of a valve guide(10) and an actuating fluid can be supplied to the valve guide. The actuating fluid has a lubricating function in the form of controlled leakage. The direction of the actuating fluid can be changed by the high pressure of a fluid control device in the form ...

IMPROVEMENTS IN CAM CONTACTING DEVICES

The invention relates to improved cam contacting devices for use in internal combustion engines and preferably for use in internal combustion engines having variable valve timing. In particular, the use of ceramics including silicon nitride and silicon carbide have been demonstrated as providing effective cam contacting surfaces allowing an axially displaceable cam shaft having a variable profile cam to be run with resulting improvements in idle speed and volumetric efficiency. © KIPO & WIPO 2007 ...

ACCUMULATOR-REGENERATIVE INTERNAL COMBUSTION ENGINE

The engine can be used as a multifunctional energy converting unit for driving different types of transport vehicles. It performs efficacious reduction of the running speed of the driven machine, thus accumulating and regenerating any surplus kinetic energy taken away from the inertia mass of the driven machine, recuperation of part of the heat energy contained in the exhaust gases of any four-stroke operating cycle after the process of scrubbing before and after leaving the operating space of the working cylinders and direct cooling of their walls heated during the combustion, expansion and regeneration during the time of the individual operating cycle of the heat taken away due to the cooling. The engine consists of a reconstructed four-stroke internal combustion engine, in the cylinder head (2) of which, for each of the operating cylinders (11) of the central shaft (300) a crossbar (3) is pivotly suspended with a distribution shaft (4) and a second distribution shaft (5) resting on bearings ...

CONJUGATE VORTEX STRATIFIED EXHAUST GAS RECIRCULATION SYSTEM

A four-stroke reciprocating internal combustion engine that uses stratified exhaust gas recirculation to improve combustion is disclosed. The engine includes at least one combustion chamber defined by a cylinder, a reciprocating piston contained within the cylinder, and a cylinder head. Each combustion chamber is in fluide communication with at least one intake port and at least one exhaust port. At least one intake port includes an associated intake valve and an intake flow motion generating device for creating an intake fluid flow near the intake port. At least one exhaust port includes an exhaust valve that opens during the intake stroke at part load, and an exhaust flow motion generating device for creating an exhaust fluid flow near the exhaust port during the intake stroke at part load. An engine controller processes signals from at least one sensor and outputs a control signal to a variable valve lift and timing system for operating each intake valve and each exhaust valve such that ...

INTERNAL COMBUSTION ENGINE, EXHAUST VALVE AND CYLINDER HEAD THEREFOR, AND PRODUCTION, OPERATION AND USE OF AN INTERNAL COMBUSTION ENGINE

The invention relates to an internal combustion engine, in particular a large two-stroke diesel engine, comprising at least one combustion chamber (2) delimited by a cylinder (1) and a piston (3) interacting with a crankshaft, said combustion chamber comprising at least one combustion gas outlet (20; 120; 320; 420), which is formed between a valve disk (8; 108; 308) of an exhaust valve (9; 109; 309) and an associated disk seat, and at least one charge air inlet (4). The exhaust valve (9; 109; 309) can be actuated between an open position and a closed position. The combustion gas outlet (20; 120; 320; 420) is connected to at least one outlet channel (11) and to at least one combustion gas draw-off duct (18; 118a, 118b; 318, 318a; 418, 418a), for example in order to recirculate part of the combustion gas generated during combustion to the charge air inlet (4). The invention further relates to an exhaust valve (9; 109; 309) and to a cylinder head for such an internal combustion engine. The ...

Shroud and combustion chamber for an internal combustion engine

The present invention provides an internal combustion engine combustion chamber with at least one shrouded exhaust valve. The combustion chamber is partially defined by a cylinder head having an exhaust port and a throat opening to the combustion chamber with an exhaust valve with an enlarged head portion cooperative with the throat to regulate exhaust flow therethrough. The exhaust valve shroud is formed by a projecting portion of the cylinder head interiorly of the combustion chamber and located adjacent to the exhaust valve. During the exhaust cycle of the combustion chamber, the shroud cooperates with the peripheral edge of the exhaust valve head to inhibit a direct flow of exhaust rich in unburned hydrocarbons between the surface of the shroud and the edge of the exhaust valve.

Engine valve

TURBO-LAG COMPENSATION SYSTEM FOR AN ENGINE

A boost system for an engine, comprising an engine having at least a cylinder; a fuel injector coupled to said cylinder; a compression device coupled to said engine; a compressed air storage device coupled to said compression device and configured to deliver compressed air to an air flow amplifier device located in the inlet air passageway to said cylinder; and a controller to adjust an amount of fuel injection to account for variation of air delivered to said cylinder from said flow amplifier device.

CYLINDER HEAD

COMBUSTION CHAMBER STRUCTURE OF ENGINE

PROBLEM TO BE SOLVED: To restrain reduction in engine output, particularly, reduction in wide-open-throttle performance of an engine, by improving combustion stability, exhaust gas performance and fuel economy of the engine. SOLUTION: When a lift quantity of an intake valve 26 driven by a continuously variable valve lift mechanism 27 is small, a flow of an air current in a combustion chamber 17 is promoted. When the lift quantity of the intake valve 26 by the continuously variable valve lift mechanism 27 is maximum, a flow promoting part 28 is provided for restraining reduction in a flow rate of intake air flowing in the combustion chamber 17 via an intake hole part 22. COPYRIGHT: (C)2007,JPO&INPIT ...

Fremdgezündete Brennkraftmaschine mit Direkteinspritzung

Brennkraftmaschine mit einer Brennstoffeinspritzung direkt in einen Brennraum

Brennkraftmaschine mit einer Brennstoffeinspritzung direkt in einen Brennraum der Brennkraftmaschine, mit einer Aufladevorrichtung und mit einem variablen Ventiltrieb für Gaswechselventile zur Veränderung der Steuerzeiten zumindest der Einlass-Gaswechselventile, wobei eine Öffnungsdauer zumindest der Einlass-Gaswechselventile veränderbar ist. DOLLAR A Durch die vorgeschlagene Ausgestaltung kann das Brennverhalten einer aufgeladenen Otto-Brennkraftmaschine mit einer Brennstoffeinspritzung direkt in einen Brennraum im Niedriglastbereich deutlich verbessert werden.

Gaswechselventil mit Korrosionsschutzschicht

Gaswechselventil einer Brennkraftmaschine mit einem Ventilkegel (1) im Wesentlichen aus einem Ventilschaft (2), der unter Ausbildung einer Hohlkehle (11) in einen Ventilteller (4) übergeht und der Ventilkegel (1) oder zumindest der Ventilschaft (2) bis in den Bereich der Hohlkehle (11) aus einem Warmarbeitsstahl aus einer nitridbildenden Basislegierung gefertigt ist, dadurch gekennzeichnet, dass der Ventilkegel (1) zumindest in Teilbereichen mit einer Korrosionsschutzschicht (8) in Form einer Nitrid- oder Carbonitridschicht versehen ist, wobei die Korrosionsschutzschicht (8) durch Umsetzung der nitridbildenden Basislegierung durch Plasmanitrieren oder Plasmanitrocarburieren in einer Stickstoffatmosphäre erzeugt ist.

Steuerungsvorrichtung

Hubkolbenmaschine, insbesondere Zweitakt-Großdieselmotor

Adjustable I.C. engine intake valve guide and baffle

The intake valve guide 18 is mounted slidably and/or rotatably relative to the intake port 10 to enable the cross section of the intake port 10 to the restricted in the immediate vicinity of the intake valve 12. The guide 18 may adjust the position of a resilient vane (54, Figs. 3 and 4). The guide may regulate the speed, swirl or turbulence in accordance with throttle position. ...

Improvements in or relating to the passages leading to and from the cylinders of internal combustion engines and air compressors

... 448,286. Compressing air. DAY, C., c/o Mirrlees Bickerton & Day, Ltd., Hazel Grove, near Stockport. March 2,1935, No. 6574. [Class 8 (i)] [See also Group XXVII] In an air compressor, guide vanes 6, mounted in the passage on a valve guide 5, or a detachable liner or valve cage, or on the walls of the passages, enable sharper bends and thus shorter and lighter valve stems to be used. The vanes mav be made of different material from the part to which they are attached.

Saugkanal for internal-combustion engines, in particular diesel engines

CYLINDER HEAD FOR AN INTERNAL-COMBUSTION ENGINE

INLET CHANNEL FUR INTERNAL-COMBUSTION ENGINES

INLET CHANNEL FUR INTERNAL-COMBUSTION ENGINES, IN PARTICULAR DIESEL ENGINES

INTERNAL COMBUSTION ENGINE WITH DUAL INDUCTION SYSTEM

A dual induction system has a primary induction passage to direct a fluid charge into a cylinder to swirl therein and a secondary induction passage to direct a second fluid charge into the cylinder in such a direction as to impede the swirl of the first fluid charge and lower the "swirl ratio" within the cylinder. A primary throttle valve controls the first fluid charge while a secondary throttle valve which is coordinated with the primary and remains closed until the primary opens wider than a predetermined amount, controls the second fluid charge. When only the primary throttle valve is open a high "swirl ratio" of 1.5 to 6 prevails in the cylinder while when both open the "swirl ratiol" drops to 0.5 to 1 and simultaneously provides a high volumetric efficiency.

METHOD FOR INTRODUCING HIGHLY PRECOMPRESSED COMBUSTION AIR INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, HIGH-PRESSURE INLET VALVE THEREFOR AND INTERNAL COMBUSTION ENGINE HAVING SUCH A HIGH-PRESSURE INLET VALVE

A method for introducing combustion air into a cylinder (25) of an internal combustion engine, a high-pressure inlet valve (1) provided therefor and an internal combustion engine that operates using the method and the high-pressure inlet valve are described. All the combustion air for the respective cylinders (25) is introduced into the cylinder (25) of the internal combustion engine, by means of a high-pressure inlet valve (1) arranged in the relevant cylinder head (26) and on the basis of a controlled mass flow, such that mixture formation and charge exchange are intensified. In addition, the temperature and/or pressure of the combustion air is measured and the quantity of combustion air is introduced into the cylinder (25), in a controlled manner and on the basis of the measurement results, by means of the high-pressure inlet valve (1) by opening or closing a sliding piston (3) of the high-pressure inlet valve (1) by displacement. As a result of an axial displacement of the sliding piston ...

GAS INTAKE SYSTEM IN a COMBUSTION CHAMBER WHOSE CONDUITD' ADMISSION COMPRISES a VEIN

INTERNAL COMBUSTION ENGINE AND SEAT OF VALVE DESIGNED TO PRODUCE SWIRLING UNMOUVEMENT

DEVICE INTENDS FOR THE IMPROVEMENT OF THE PERMEABILITY VALVES DITESCHAMPIGNONS OF THE THERMAL ENGINES

Device for the admission of two fluids distinct in the combustion chamber from an engine

Valve for IC engine - has seat and heat shaped to give coanda effect flow without turbulence

La tête 3 de la soupape 1 comporte une surface inférieure 6 sensiblement plane et perpendiculaire à l'axe de soupape 2a. La surface de jonction entre le conduit 4 et la chambre de combustion 8 est constituée par une première portion évasée 11 de rayon R1 suivie d'une deuxième portion évasée 13 de rayon R2 environ double du rayon R1 . Le siège de soupape est ainsi évasé de façon à définir un passage progressivement agrandi en forme de diffuseur. Lors de l'ouverture de la soupape, l'écoulement reste appliqué sur cet évasement par effet Coanda supprimant ainsi les tourbillons de décollement des parois et réduisant les pertes de charge.

GAS INTAKE SYSTEM IN a COMBUSTION CHAMBER WHOSE CONDUIT Of ADMISSION COMPRISES a VEIN

Air intake device for internal-combustion engine and implementation method

Dispositif d'admission d'air comburant pour moteur à combustion interne comprenant au moins un conduit d'admission (8) débouchant dans une chambre de combustion (9) et une soupape d'admission (1) associée audit conduit, munie de moyens déflecteurs de l'air comburant caractérisé en ce qu'il comporte des moyens additionnels de mise en rotation de la soupape (1) autour de son axe, asservis au fonctionnement du moteur.

SIT OF VALVE MACHINES IN TWO EXCENTRIC CHAMFERS

La culasse (4) comporte un conduit (8) de circulation de gaz débouchant sur une face de sortie (10) de la culasse, le conduit (8) comportant successivement, dans le sens vers la face de sortie (10), un siège (14) de soupape d'axe (X-X'), puis une embouchure (16) comprenant : - une première portion (40) de tronc de profil de révolution désaxée par rapport à l'axe (X-X') et s'évasant vers la face de sortie (10) ; et - une deuxième portion (42) de tronc de profil de révolution désaxée par rapport à l'axe (X-X') et par rapport à l'axe de la première portion désaxée (40), et s'évasant vers la face de sortie (10).

SIT OF VALVE MACHINES IN SEVERAL CHAMFERS

La culasse (4) comporte au moins un conduit (8) de circulation de gaz débouchant sur une face de sortie (10) de la culasse, le conduit comportant successivement, dans le sens vers la face de sortie (10), un siège (14) de soupape d'axe (X-X'), puis une embouchure (16) comprenant : - une première face (40) comprenant une portion désaxée (42) par rapport à l'axe (X-X') et s'évasant vers la face de sortie (10) ; et - une deuxième face (44) comprenant : • une première portion (46) de tronc de profil de révolution s'évasant vers la face de sortie (10), la première face (40) et ladite première portion (46) étant en vis-à-vis ; et • une deuxième portion (48) de tronc de profil de révolution, la première face (40) et ladite deuxième portion (48) étant en vis-à-vis, ladite deuxième portion (48) étant moins évasée que ladite première portion et la précédant.

SIT OF VALVE MACHINES IN SEVERAL CHAMFERS

Swirl/tumble type intake pipe restricting device for internal combustion engine, has metallic insert inserted between valve seat and cylinder head, and semi-torus supported against cylinder head and extended towards interior of intake pipe

Dispositif de restriction d'un conduit d'admission (2) ménagé dans une culasse (1) de moteur de manière à déboucher dans une chambre de combustion de ce dernier par un orifice de sortie obturé par une soupape d'admission (4) lorsqu'elle vient en appui contre un siège de soupape (7) monté dans un épaulement (8) du conduit (2), caractérisé en ce qu'il est constitué par un insert métallique (9) de faible épaisseur inséré entre le siège de la soupape et la culasse.

PISTON WITH INTEGRAL VALVE

Axial flow impeller for cylinder head of spark ignition engine, has vanes integrated to end of carrier ring and extended from ring radially in direction of axis of through-opening, where each vane has length of specific millimeter

The impeller (40) has a rectangular sectioned carrier ring (41) inserted and blocked in outlets i.e. cylindrical holes, of an exhaust gas intake duct of a cylinder head. The ring defines a circular through-opening (44) with a given axis (S) and radius (R). Vanes (43) are integrated to an end of the ring and extended from the ring radially in a direction of the axis of the opening. Each vane has length ranging from 2 to 5 millimeters, where the length is 0.75 to 0.9 times of the radius of the opening. The ring and the vanes are formed from a single piece by molding of a plastic material.

Heat engine i.e. spark ignition engine, for motor vehicle, has annular element with upstream section, whose lower bearing forms step provoking rotational movement of admission gas along rotation axis of axis perpendicular to valve seat axis

L'invention propose un moteur thermique de véhicule automobile, du type qui comporte au moins une culasse (10) dont au moins un conduit d'admission moulé (12) comporte un tronçon final coudé (14), qui débouche dans une chambre de combustion (20) dudit moteur par l'intermédiaire d'un élément annulaire (22) rapporté formant siège de soupape, caractérisé en ce que l'élément annulaire (22) comporte un tronçon aval (28) comportant le siège (30) de soupape et un tronçon amont (32) comportant une portée intérieure tronconique (34) d'angle déterminé formant une marche (40) provoquant la formation d'un mouvement tourbillonnaire des gaz d'échappement, selon un axe de rotation d'axe perpendiculaire à l'axe du siège (30) de soupape.

Valve seat ring for IC engine inlet duct

CIRCUIT Of ADMISSION COMPRISING an OPENING PROVIDED With a NOTCH TO CONFER SWIRLING UNMOUVEMENT ON ALLOWED GASES

L'invention concerne un système d'admission de gaz dans une chambre de combustion (22) cylindrique d'axe vertical (A1) d'un moteur à combustion, comportant un premier conduit (26) d'admission des gaz qui débouche dans la chambre de combustion (22) par un premier orifice d'admission (30) et qui est conformé pour que le flux de gaz admis forme un mouvement tourbillonnaire (S) dans la chambre de combustion (22), et comportant un second conduit d'admission (28) qui débouche dans la chambre de combustion (22) par un second orifice d'admission (32) et qui est conformé pour que le flux de gaz débouche selon une direction sensiblement radiale dans la chambre de combustion (22), chacun des orifices d'admission (30, 32) étant susceptibles d'être obturés par une soupape (34, 36), caractérisé en ce que le degré d'ouverture extrême de la seconde soupape (36) est commandé, et en ce que le pourtour (46) du second orifice d'admission (32) comporte un secteur angulaire entaillé (66) qui s'étend sur un arc ...

sistema para controle de ar de admissão para motor de combustão de múltiplos cilindros

IMPROVED INTAKE VALVE FOR INTERNAL COMBUSTION ENGINE

VALVE

The invention is related to an arrangement that is designed to govern inlet and outlet gas mixtures and is used mainly in four stroke combustion engines. Already existing designees is of a nature that they limit the performance of the four-stroke engine mainly as a result of the weight and its flow-technical design. The invention resolve this problem mainly as a result of that the new valve is lighter and has a better flow-technical design. This is a result of that the new valve design allows both the inlet and outlet gas mixtures to flow inside and through the valve body (find drawing A2) thus as a result the valve design is lighter and has an higher efficiency due to the flow-technical design that allows for that no valve shaft is put in the middle of the flow path. The invention is mainly used in the transportation industry.

Coaxial poppet valve

A two-piece intake assembly such as a coaxial poppet valve includes a main poppet valve with a stem attached to a head and an auxiliary poppet valve movable on the inner valve. A guiding element on the outer valve is configured to receive the inner valve stem, and is connected to an outer valve head configured to mate with the inner valve head and form a seal. The assembly provides a first vent opening formed by the action of a rocker arm on the inner valve stem and a second opening formed by the pressure differential between the combustion chamber and the intake port.

Internal combustion engine

Spark ignited internal combustion engine of the reciprocal piston type, having inlet means 7 for substantially tangentially introducing a combustible mixture into a combustion chamber 6 to generate a swirling motion of the mixture and provided with means 16 for breaking up the swirling motion so as to produce turbulence at or near the end of the compression stroke of the piston 3.

Mixing device

Inlet valve, internal combustion engine and transportation apparatus including the same

Device for injecting fuel pneumatically in a cylinder of an internal combustion engine

The device comprises an injection chamber (3) connected to the internal chamber of the cylinder (1) by way of two ports (4a, 4b) to each of which a valve (5a, 5b) is assigned. The injector (8) comprises two outlet ducts (9a, 9b) each directed towards one of the ports (4a, 4b) in the injection chamber (3). The valves (5a, 5b) are controlled so as to open and close simultaneously. The invention has applications, particularly on high powered two-stroke engines. ...

Valve for an internal combustion engine

УСТРОЙСТВО В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ ДЛЯ УПРАВЛЕНИЯ ПРОТЕКАНИЕМ ВХОДНОЙ И ВЫХОДНОЙ ГАЗОВЫХ СМЕСЕЙ

Изобретение относится к устройству, предназначенному для управления входной и выходной газовыми смесями, и используется преимущественно в четырехтактных двс. Известные конструкции ограничивают возможности четырехтактного двигателя из-за их веса и условий для протекания потока. Изобретение устраняет эти недостатки, поскольку предлагаемый клапан имеет меньший вес и лучшие условия для протекания потока. Это достигается тем, что в предлагаемом клапане входная и выходная газовые смеси могут протекать внутри корпуса клапана. Таким образом, предлагаемый клапан имеет меньший вес и обеспечивает больший к.п.д. потока благодаря тому, что стержень клапана не находится в средней части пути потока. Изобретение предназначено для использования главным образом в транспортной промышленности. 5 з.п. ф-лы, 4 ил.

ВЫПУСКНОЙ КЛАПАН ДЛЯ КРУПНОРАЗМЕРНОГО ДВУХТАКТНОГО ДИЗЕЛЬНОГО ДВИГАТЕЛЯ, СПОСОБ СНИЖЕНИЯ ОБРАЗОВАНИЯ NOx В УКАЗАННОМ ДВИГАТЕЛЕ И УКАЗАННЫЙ ДВИГАТЕЛЬ

FIELD: engines and pumps. SUBSTANCE: exhaust valve to adjust exhaust orifice 12 has valve disc 15 arranged nearby lower end of valve stem 14. Valve disc lower side facing combustion chamber 12 has cup made up of rotary symmetric cavity 18 open downward with confined perimetre. To retain combusted gas, maximum of valve disc concave lower side lift with respect to imaginary flat face surface 23 that makes direct support for valve disc 15, varies from 2 to 10% of valve disc OD. Invention covers also NOx reduction procedure, versions of exhaust valve fabrication, versions of large-size diesel engine fabrication, method of large-size diesel engine fabrication, and method of large-size diesel engine alteration. EFFECT: reduced NOx emission. 41 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 458 229 (13) C1 (51) МПК F01L 3/20 (2006.01) F02M 25/07 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010150791/06, 12.05.2009 (24) Дата начала отсчета срока действия патента: 12.05.2009 (73) Патентообладатель(и): МАН ДИЗЕЛЬ ЭНД ТУРБО, ФИЛИАЛ АФ МАН ДИЗЕЛЬ ЭНД ТУРБО СЕ, ТИСКЛАНД (DK) (45) Опубликовано: 10.08.2012 Бюл. № 22 2 4 5 8 2 2 9 (56) Список документов, цитированных в отчете о поиске: GB 2227055 A, 18.07.1990. US 2882886 A, 21.04.1959. GB 129015 A, 10.07.1919. RU 2004129711 A1, 27.03.2006. RU 95112530 A1, 10.02.1997. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.12.2010 2 4 5 8 2 2 9 R U (87) Публикация заявки РСТ: WO 2009/138085 (19.11.2009) C 1 C 1 (86) Заявка PCT: DK 2009/000109 (12.05.2009) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.В.Пинчуку, рег.№ 656 (54) ВЫПУСКНОЙ КЛАПАН ДЛЯ КРУПНОРАЗМЕРНОГО ДВУХТАКТНОГО ДИЗЕЛЬНОГО ДВИГАТЕЛЯ, СПОСОБ СНИЖЕНИЯ ОБРАЗОВАНИЯ NOx В УКАЗАННОМ ДВИГАТЕЛЕ И УКАЗАННЫЙ ДВИГАТЕЛЬ (57) Реферат: Изобретение может быть использовано в крупноразмерных двухтактных дизельных двигателях. Выпускной клапан, предназначенный для ...

Впускной клапан дизеля

Изобретение относится к двигателестроению. Впускной клапан дизеля состоит из стержня (1), плавно переходящего по образующей усеченного конуса (2) в головку (3), снабженную рабочей поверхностью, взаимодействующей с седлом (6), установленным в блоке цилиндров. На образующей усеченного конуса (2) расположены 3 спиральных направляющих (4), выполненных по клотоиде с высотой, не превышающей высоты подъёма клапана, представляющих собой прямоугольник, завершающийся сверху полукругом, и начинающихся сразу от стержня (1) клапана, создающих турбулентный поток воздуха в цилиндре дизеля в процессе сгорания для разрушения зон влияния топливных факелов. Технический результат заключается в снижении диссипации энергии поступающего воздушного заряда, уменьшении вихреобразования в клапанной щели, снижении импульса воздушного заряда при прохождении узкого места. 3 ил.

VALVE SEAT INSERTS FOR INTERNAL COMBUSTION ENGINES

VENTILMECHANISMUS.

Device for increasing the transmission of inlet and exhaust port in reciprocating piston internal combustion engines

In a device for increasing the transmission of the inlet and exhaust port in reciprocating piston internal combustion engines with a cylinder, having a combustion chamber, and a cylinder head which has the inlet port and the exhaust port, which open out into a common port connecting with the combustion chamber and can be controlled by valves, the increase of the transmission can be reliably achieved in that a poppet valve (8) is arranged between the ends of inlet port (3) and exhaust port (4) facing the common port (5), which valve has valve seat surfaces (8' and 8'') on both sides and can be alternately applied with the valve seat surfaces (8', 8'') to valve seat surfaces (3', 4') of the inlet port (3) or exhaust port (4), and the common port (5) of which can be closed or opened by a further valve (7). ...

Method for reducing carbon deposits around inlet valve of fuel injection IC engine has voids in the valve stem guides to reduce thermal losses and provide a high temperatures to burn off the carbon

A method for reducing the build up of carbon deposits inside the cylinder head, and especially around the inlet valve, has the valve stem guides (16) provided with voids to reduce thermal losses and to increase the temperatures around the inlet valve in order to prevent build up of carbon and even to burn off carbon deposits. The surface of the inlet valve can be coated with a catalytic layer for added handling of the combustion gasses. Typical coatings include oxidised vanadium nitride.

Hubkolbenbrennkraftmaschine mit wenigstens einem Zylinder

Einlasssystem für eine Brennkraftmaschine

I C Engine inlet valve form

The valve head includes a transitional portion 19 between the seating surface 16 and the constant diameter valve stem 131 which flares outwardly from the end of the stem to the seating surface. The axial length of the transitional portion is more than 80% up to 100% of the diameter of the seating surface to provide a smooth flow passage for a charge when the inlet valve is open. ...

Improvements in or relating to the inlet valves of internal combustion engines

... 404,197. Valves ; mixing charge. WEDLAKE, W. A., and CASSON, W., Ashville, Victoria Esplanade, Heysham, Morecambe, Lancashire. Aug. 17, 1933, No. 14838. [Classes 7 (ii) and 7 (vi).] Inlet valves 14 are provided with a skirt portion 24 of smaller diameter than the inlet port, and with an enlargement 23 of the stem located in the inlet passage 11. The skirt portion 24 may be scored spirally at its underside, as shown at 25 in Fig. 3, to promote turbulence of the mixture. A smaller fuel jet than normal may be used in the carburetter with valves of this construction.

Charge motion control valve

Cylinder structure for internal combustion engine

A cylinder structure satisfies the following conditions: 12%≦d/a≦27%, where d is a distance between a cylinder inner surface 12 a and an exhaust valve member 20 b, and a is a diameter of the exhaust valve member; 40%≦c/b≦50%, where c is a length of a non-guided portion of the exhaust valve 20 located below a lower end of a sleeve 26 when the exhaust valve 20 is closed, and b is a diameter of a cylinder bore; and 0.5%≦e/S≦0.8%, where e is a gap between an exhaust valve rod 20 a and the sleeve 26 and S is a diameter of the exhaust valve rod 20 a.

Hollow Exhaust Poppet Valve

In a hollow exhaust poppet valve including a fillet increasing in diameter toward a leading end, a stem, and a head and having a coolant within a hollow part formed from the head to the stem, the stem includes a first stem part on a base end side, and a second stem part integrated with the first stem part via a step part and integrated with the fillet, and the hollow part includes a first hollow part formed inside the first stem part, and a second hollow part formed inside the second stem part, the fillet, and the head in such fashion as to have a constant inner diameter greater than the first hollow part and formed so as to be continuous with the first hollow part via a tapered part or a curved part. 1. A hollow exhaust poppet valve including a stem and a head integrated via a fillet that increases in diameter toward a leading end and having coolant within a hollow part formed from the head to the stem , whereinthe stem includesa first stem part on a base end side, and a second stem part integrated with the first stem part via a step part, integrated with the fillet, and having a wall thickness and an outer diameter larger than the first stem part, and whereinthe hollow part includesa first hollow part formed inside the first stem part, anda second hollow part formed inside the second stem part, the fillet, and the head in such fashion as to have a constant inner diameter larger than the first hollow part and formed so as to be continuous with the first hollow part via a connecting portion.2. The hollow exhaust poppet valve according to claim 1 , wherein the second hollow part has a shape of a plurality of hollow parts different in inner diameter continuously arranged from a base end part to a leading end part in ascending order of inner diameter.3. The hollow exhaust poppet valve according to claim 2 , wherein the connecting portion is one among a plurality of connecting portions by way of which the plurality of hollow parts different in inner diameter are ...

VALVE ARRANGEMENT AND VALVE GUIDE

A valve arrangement for supplying air to an internal combustion engine includes a first valve and a second valve arranged within the first valve. A valve guide for use in a valve arrangement is also provided. 1. A valve arrangement for supplying air to an internal combustion engine , the valve arrangement comprising:a first valve for controlling an air supply to a cylinder, the first valve being movable between a closed position in which the air cannot be supplied to the cylinder and an open position in which the air is supplied to the cylinder, the first valve comprising: a first valve head, and a first valve stem comprising an inlet in a side wall of the first valve stem, wherein the inlet is configured to receive additional air from a feeder channel, the first valve stem further comprising an internal passage, arranged in the length direction of the valve stem and fluidly connected to the inlet and configured to supply the additional air to the cylinder;a second valve arranged within the first valve and configured to control the flow of additional air to the cylinder, the second valve comprising a second valve stem and a second valve head in contact with an inner surface of the first valve head when the second valve is in a closed position;a tubular valve guide arranged to surround a portion of the first valve stem such that the first valve stem is movable in the valve guide;wherein the valve guide comprises an inner groove forming a cavity between the valve guide and the first valve stem, wherein the valve guide further comprises a valve guide aperture configured to fluidly connect the inner groove to the feeder channel, and wherein the inlet of the first valve stem is aligned with the valve guide aperture when the first valve is in a closed position.2. The valve arrangement according to claim 1 , wherein the valve guide is made from a single piece.3. The valve arrangement according to claim 1 , wherein the inner groove is arranged to span the inner ...

Multi-part roller tappet

A roller tappet, in particular for a high-pressure fuel pump, is provided that is guided in the direction of the longitudinal axis thereof in a housing receptacle and is driven translatably in the longitudinal direction by cams of a camshaft. The roller tappet has a tappet body. This tappet body has a tappet skirt, a pump piston contact point (9), and a rotatably mounted roller (4), by which the roller tappet is supported on the camshaft. The tappet body has a guide cylinder (1), which is mounted in the housing receptacle and on which the roller (4) is supported, and a cup-shaped sleeve (7) having the pump piston contact point (9), which cup-shaped sleeve is supported in the guide cylinder (1) by a radial ring (8). A cylindrical constriction (5) is formed in the guide cylinder (1) in the region of the radial ring support.

VALVE FOR AN INTERNAL COMBUSTION ENGINE

The present disclosure relates to a valve, preferably an exhaust gas or gas exchange valve, having a valve head which has a front face and a rear face, the front face of the valve head including an edge region and a bulge towards the outside which has a crest region. The valve, in order to reduce the mass of the bulge of the valve head, including a laterally outer part section of the edge region that is of flatter configuration in comparison with a laterally inner part section of the edge region, or the edge region includes at least one discontinuity in cross section. 1. A valve comprising:a valve head which has a front face and a rear face, the front face of the valve head including an edge region and a bulge which has a crest region, wherein in order to reduce the mass of the bulge of the valve head, a laterally outer part section of the edge region is of flatter configuration in comparison with a laterally inner part section of the edge region, or the edge region includes at least one discontinuity in cross section.2. The valve according to claim 1 , wherein the valve is an exhaust gas or gas exchange valve.3. The valve according to claim 1 , wherein the at least one discontinuity includes at least one vertex claim 1 , inflection point or reversal point.4. The valve according to claim 1 , wherein claim 1 , in cross section claim 1 , the at least one discontinuity is arranged on the outside relative to a laterally inner end of the edge region or is arranged on the inside relative to a laterally outer end of the edge region.5. The valve according to claim 4 , wherein the inner lateral end adjoins the crest region or the outer lateral end is the outermost lateral end of the front face.6. The valve according to claim 1 , wherein the outer part section of the edge region has a lower slope in comparison with the inner part section of the edge region claim 1 , or the outer part section of the edge region has a slope in a range of less than ±5°.7. The valve according to ...

INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

An intake system for an internal combustion engine is provided. The intake system may include an intake manifold fluidly connected to a cylinder, an intake valve coupled to the cylinder having an air supply duct longitudinally extending through a portion of a valve stem and having an outlet opening into the intake manifold and an inlet fluidly connected to a supply line fluidly connected to an intake passage downstream of a compressor and upstream of a throttle, and a shut-off valve positioned in the supply line configured to adjust the flow of gas through the supply line. 1. An internal combustion engine comprising:at least one cylinder head; and where each lifting valve has a valve stem, on whose end facing toward the cylinder there is arranged a valve head corresponding to the inlet opening and whose other end faces toward the valve actuating device and which is mounted so as to be displaceable in translational fashion in a bushing-like valve stem guide such that the valve, when actuated and during rotation of the camshaft, performs an oscillating lifting movement in the direction of its longitudinal axis between a valve closed position and a valve open position so as to open up and close off the inlet opening; and', 'where in the valve stem of at least one valve, there is provided an air supply duct which extends in a main section along the longitudinal axis of the valve, wherein, at a cylinder-side end of the air supply duct, at least one rectilinear section of the air supply duct branches off and emerges from the valve, and the air supply duct is, toward an end facing away from the cylinder, fluidly connected to the intake system via a line., 'at least one cylinder which has at least one inlet opening fluidly connected to an intake system configured to generate charge air, and a valve assembly comprising a lifting valve for each inlet opening and comprising a valve actuating device for actuating the at least one lifting valve, which valve actuating device ...

METHOD FOR INTRODUCING HIGHLY PRECOMPRESSED COMBUSTION AIR INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, HIGH-PRESSURE INLET VALVE THEREFOR AND INTERNAL COMBUSTION ENGINE HAVING SUCH A HIGH-PRESSURE INLET VALVE

A method for introducing combustion air into a cylinder () of an internal combustion engine, a high-pressure inlet valve () provided therefor and an internal combustion engine that operates using the method and the high-pressure inlet valve are described. All the combustion air for the respective cylinders () is introduced into the cylinder () of the internal combustion engine, by means of a high-pressure inlet valve () arranged in the relevant cylinder head () and on the basis of a controlled mass flow, such that mixture formation and charge exchange are intensified. In addition, the temperature and/or pressure of the combustion air is measured and the quantity of combustion air is introduced into the cylinder (), in a controlled manner and on the basis of the measurement results, by means of the high-pressure inlet valve () by opening or closing a sliding piston () of the high-pressure inlet valve () by displacement. As a result of an axial displacement of the sliding piston () between guide sections () in the housing () of the high-pressure inlet valve (), passage areas () for combustion air are blocked in a closed position () and opened in an open position (). In the passage area (), the sliding piston () has two pressurization areas () facing each other, the surfaces of which are of equal size or differ from each other when projected in one plane. The first pressurization area () can be designed as a poppet valve () and the second pressurization area () can be designed as an annular surface (). The internal combustion engine has a high-pressure line () for the combustion air, which line is connected to the high-pressure inlet valve (). With respect to the longitudinal axis of the cylinder (), the high-pressure inlet valve () is arranged in the cylinder head () in an upright or horizontal position. 1. A method for introducing combustion air into a cylinder of an internal combustion engine , in which method the entirety of the combustion air for the respective ...

ROCKER ARM MOTION DETECTION FOR DIAGNOSTIC FEEDBACK AND CONTROL

A method of operating an internal combustion engine having an electrical circuit that includes a connection closed by abutment between two distinct parts, one of which is mounted to a rocker arm of a rocker arm assembly and another that is mounted to a part distinct from the rocker arm. The connection is structured such that the movement of the rocker arm causes relative motion between the surfaces of the distinct parts that close the connection. The relative motion causes the circuit resistance to transition between values within a first range and values within a second range. The transitions of resistance between those ranges are detected and their presence, absence, or timing used for purposes of providing diagnostic feedback or control. 1. A method of operating an internal combustion engine of a type that has a combustion chamber , a moveable valve having a seat formed in the combustion chamber , a camshaft , and a rocker arm assembly that actuates the valve and includes a rocker arm and a cam follower configured to engage a cam mounted on a camshaft as the camshaft rotates , the method comprising:providing an electrical circuit having a resistance and comprising an electrical connection made by abutment between surfaces of two distinct parts, one of which is mounted to the rocker arm;over an interval, determining times at which the resistance transitions between a value within a first range to a value within a second range, wherein the second range is disjoint from the first range; andperforming a diagnostic or control operation based on the times or the absence of any times.2. The method of claim 1 , comprising using the timing of at least one of the transitions in the diagnostic or control operation.3. The method of claim 2 , further comprising:determining a first time and a second time at which the resistance transitions between a value within the first range and a value within the second range;wherein the diagnostic or control operation is performed based ...

Moment-cancelling 4-stroke engine

A moment-cancelling, four-stroke engine is disclosed. The engine includes a first cylinder having a first piston and a second cylinder having a second piston, a first crankshaft operably connected to the first piston and a second crankshaft operably connected to the second piston. The first crankshaft rotates in a first direction and the second crankshaft rotates in a second direction that is opposite the first direction to cancel the moments applied to the engine and reduce engine vibration.

ENGINE VALVE WITH RAISED RING OR DIMPLE

An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple. 1. An engine head assembly for an internal combustion engine comprising:an engine head having a fluid conduit formed therein; andan engine valve including a stem, a head comprising an outer lip surface, a seating surface interposed between the stem toward and the outer lip surface, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface;wherein the combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.2. The engine head assembly of wherein the engine valve includes a body of revolution claim 1 , defining an axis of revolution claim 1 , a radial direction perpendicular to the axis of revolution claim 1 , and a circumferential direction about the axis of revolution claim 1 , and the raised ring and the dimple that extend circumferentially about the axis of revolution.3. The engine head assembly of wherein the first convex arcuate surface is spaced away a first radial distance from the outer lip surface claim 2 , and the first concave arcuate surface is spaced away from the outer lip surface a second radial distance from the outer lip surface that is greater than the first radial distance.4. The engine head assembly of wherein the combustion surface further comprises a first ...

ENGINE VALVE

A valve for use in an internal combustion engine is provided. The valve includes a valve head. The valve head includes a combustion face configured to face a combustion chamber of the internal combustion engine. The combustion face includes an angular side portion. The combustion face also includes a central recess portion defining an inner diameter and an outer diameter. The inner diameter and the outer diameter together define a depth of the central recess portion. The valve also includes a neck portion configured to connect the valve head with a valve stem of the valve. 1. A valve for use in an internal combustion engine , the valve comprising: an angular side portion; and', 'a central recess portion defining an inner diameter and an outer diameter, wherein the inner diameter and the outer diameter together define a depth of the central recess portion; and, 'a combustion face configured to face a combustion chamber of the internal combustion engine, the combustion face comprising, 'a valve head comprisinga neck portion configured to connect the valve head with a valve stem of the valve.2. The valve of claim 1 , wherein the valve includes at least one of an intake valve and an exhaust valve.3. The valve of claim 1 , wherein a deflection of the combustion face relative to an imaginary plane is between 0.07 mm and 0.082 mm.4. The valve of claim 1 , wherein the depth of the central recess portion is between 3 mm and 4 mm.5. The valve of claim 1 , wherein a radius of the neck portion is between 12 mm and 20 mm.6. The valve of claim 5 , wherein the radius of the neck portion is 17 mm.7. The valve of claim 1 , wherein an angle defined between the angular side portion of the combustion face and a planar surface of the combustion face is between 9° and 10° claim 1 , the planar surface being disposed between the angular side portion and the central recess portion.8. An engine comprising:a cylinder block having at least one combustion chamber;a cylinder head positioned on ...

MOMENT-CANCELLING 4-STROKE ENGINE

A moment-cancelling, four-stroke engine is disclosed. The engine includes a first cylinder having a first piston and a second cylinder having a second piston, a first crankshaft operably connected to the first piston and a second crankshaft operably connected to the second piston. The first crankshaft rotates in a first direction and the second crankshaft rotates in a second direction that is opposite the first direction to cancel the moments applied to the engine and reduce engine vibration. 18-. (canceled)9. An internal combustion engine , comprising:a first cylinder having a first piston;a second cylinder having a second piston;a first crankshaft operably connected to the first piston;a second crankshaft operably connected to the second piston;a cylinder head comprising at least one intake port and at least one exhaust port per cylinder, said at least one intake port connected to the first cylinder such that fluid can pass through the at least one intake port into the first cylinder and said at least one exhaust port connected to the first cylinder such that fluid can pass from the first cylinder through the at least one exhaust port;a movable intake valve positioned at least partially within the at least one intake port configured to control the flow of fluid through the at least one intake port, a diameter of the intake valve greater than 0.55 inches and less than 2.56 inches;a movable exhaust valve positioned at least partially within the at least one exhaust port configured to control the flow of fluid through the at least one exhaust port, a diameter of the exhaust valve greater than 0.44 inches and less than 2.06 inches;wherein the at least one intake port has a minimum intake port diameter and a first inside radius positioned toward an intake port valve seat from the minimum intake port diameter smoothly transitions to a second inside radius positioned toward the intake port valve seat from the first radius so that the intake port expands to meet the ...

METALLIC HOLLOW VALVE FOR AN INTERNAL COMBUSTION ENGINE OF A UTILITY MOTOR VEHICLE

A metallic hollow valve for an internal combustion engine of a utility vehicle may include a tubular valve stem and a valve head merging into the valve stem. The valve head may have an outer diameter that is enlarged compared to the valve stem. The valve stem and the valve head may together delimit a hollow space. The valve stem may have an outer diameter of more than 7 mm, for example between 8 mm and 11 mm. The valve stem may have an inner diameter of at least 4.5 mm, for example between 5 mm and 7 mm. 1. A metallic hollow valve for an internal combustion engine of a utility vehicle , comprising:a tubular valve stem and a valve head merging into the valve stem, the valve head having an outer diameter that is enlarged compared to the valve stem;the valve stem and the valve head together delimiting a hollow space;wherein the valve stem has an outer diameter of more than 7 mm; andwherein the valve stem has an inner diameter of at least 4.5 mm.2. The metallic hollow valve according to claim 1 , wherein the valve head includes a head base facing away from the valve stem claim 1 , and wherein the head base has a base thickness between 2 mm and 5 mm.3. The metallic hollow valve according to claim 1 , wherein the valve stem has a wall thickness between 1.5 mm and 5 mm.4. The metallic hollow valve according to claim 1 , further comprising a valve neck arranged between valve stem and valve head claim 1 , wherein the valve neck has a wall thickness between 1.5 mm and 5 mm.5. The metallic hollow valve according to claim 1 , wherein the valve head is at least one of forged and electrochemically machined.6. The metallic hollow valve according to claim 1 , wherein the hollow space is at least partly filled with a fluid.7. An internal combustion engine for a utility vehicle claim 1 , comprising:at least one cylinder including a combustion chamber having an air inlet and an exhaust outlet; a tubular valve stem and a valve head merging into the valve stem;', 'the valve stem and the ...

INTERNAL COMBUSTION ENGINE WITH A HYDRAULICALLY VARIABLE GAS EXCHANGE VALVE TRAIN

A hydraulically variable gas exchange valve train for an internal combustion engine is proposed that includes a hydraulic housing with a pressure chamber, a pressure relief chamber, and a vent duct. The vent duct is connected hydraulically on a housing inner side via a restriction to the pressure relief chamber, and opens on the housing outer side below the pressure relief chamber with regard to a direction of gravity. The vent duct opens into a hydraulic reservoir, wherein the vent duct opening lies below a normal level of the hydraulic reservoir with regard to the direction of gravity. 1. An internal combustion engine having a hydraulically variable gas exchange valve train , which comprises: a pressure chamber,', 'a pressure relief chamber, and,', 'a vent duct, and,', 'the pressure chamber, the pressure relief chamber and the vent duct connected to one another hydraulically,, 'a hydraulic housing havinga master piston, guided within the hydraulic housing, the master piston driven on a housing outer side by a cam and defining the pressure chamber on a housing inner side,a slave piston, guided within the hydraulic housing, the slave piston driving a gas exchange valve on the housing outer side and defining the pressure chamber on the housing inner side, and,a hydraulic valve, which, in a closed state, interrupts a hydraulic connection between the pressure relief chamber and the pressure chamber, and, the vent duct is connected hydraulically on the housing inner side via a restriction to the pressure relief chamber, and opens on the housing outer side below the pressure relief chamber in relation to a direction of gravity, wherein the vent duct opens into a hydraulic reservoir, and a vent duct opening is below a normal hydraulic fluid level of the hydraulic reservoir in relation to the direction of gravity.2. The internal combustion engine as claimed in claim 1 , wherein when the gas exchange valve is closed claim 1 , the vent duct opening is below a boundary of the ...

VALVE ARRANGEMENT AND VALVE GUIDE

A valve arrangement for supplying air to an internal combustion engine includes a first valve and a second valve arranged within the first valve. A valve guide for use in a valve arrangement is also provided. 1. A valve arrangement for supplying air to an internal combustion engine , the valve arrangement comprising:{'b': '240', 'a first valve for controlling an air supply to a cylinder, the first valve being movable between a closed position in which the air cannot be supplied to the cylinder and an open position in which the air is supplied to the cylinder, the first valve comprising: a first valve head, and a first valve stem comprising an inlet in a side wall of the valve stem, wherein the inlet is configured to receive additional air from a feeder channel (), the first valve stem further comprising an internal passage, arranged in the length direction of the valve stem and fluidly connected to the inlet and configured to supply the additional air to the cylinder;'}{'b': 226', '232', '228', '230, 'a second valve () arranged within the first valve and configured to control the flow of additional air to the cylinder, the second valve comprising a second valve stem () and a second valve head () in contact with an inner surface () of the first valve head when the second valve is in a closed position;'}a tubular valve guide arranged to surround a portion of the first valve stem such that the first valve stem is movable in the valve guide;wherein the valve guide comprises an inner groove forming a cavity between the valve guide and the first valve stem, wherein the valve guide further comprises a valve guide aperture configured to fluidly connect the inner groove to the feeder channel, and wherein the inlet of the first valve stem is aligned with the valve guide aperture when the first valve is in a closed position.2. The valve arrangement according to claim 1 , wherein the valve guide is made from a single piece.3. The valve arrangement according to claim 1 , wherein ...

VALVE SEAT INSERT WITH SOFT LANDING INSERT DESIGN WITH CONTOURED RADII

A valve seat insert includes a top convex arcuate blend for improving fluid flow, and a valve seating surface for slowing down valve recession. The valve seating surface includes a radially outer convex arcuate segment defining an outer radius of curvature forming a first wear crown for contacting the valve at an early wear state, a radially inner convex arcuate segment defining an inner radius of curvature forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the radially outer convex arcuate segment and the radially inner convex arcuate segment. 1. An engine head assembly for an internal combustion engine comprising:an engine head having a fluid conduit formed therein;a valve;a valve seat insert positioned at least partially within the engine head, and the valve seat insert includingan at least partially annular body, defining a longitudinal axis, and a radial direction that is perpendicular to the longitudinal axis, a first axial end surface disposed proximate to the engine head, and a second axial end surface;a radially inner surface forming a throat, a radially outer peripheral surface, and a valve seating surface disposed axially and radially between the radially inner surface and the second axial end surface; anda top convex arcuate blend extending from the first axial end surface to the radially inner surface;wherein in a plane containing the longitudinal axis and the radial direction, the valve seating surface includes a radially outer convex arcuate segment defining an outer radius of curvature forming a first wear crown for contacting the valve at an early wear state, a radially inner convex arcuate segment defining an inner radius of curvature forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the radially outer convex arcuate segment and the radially inner convex arcuate segment.2. The engine head assembly of further comprising a ...

Valve seat insert with soft landing insert design with contoured radii

A valve seat insert includes a top convex arcuate blend for improving fluid flow, and a valve seating surface for slowing down valve recession. The valve seating surface includes a radially outer convex arcuate segment defining an outer radius of curvature forming a first wear crown for contacting the valve at an early wear state, a radially inner convex arcuate segment defining an inner radius of curvature forming a second wear crown for contacting the valve at a later wear state, and a linear segment extending between the radially outer convex arcuate segment and the radially inner convex arcuate segment.

INSIDE-COOLED DISC VALVE AND A SEMI-FINISHED PRODUCT AND METHOD FOR ITS PRODUCTION

A method for the production for a semi-finished valve product (), includes casting, forging, deep-drawing, pressing and/or drop-welding of one or several metal material into a semi-finished valve product () that corresponds to a circle segment of a valve cut open in the axial direction. A valve is produced by welding together at least two semi-finished valve products () into an internally cooled valve, with the weld running in the axial direction of the valve. 1484. A method for the production of a semi-finished valve product () , comprising partially folding a sheet , wherein the folded part () of the sheet being forge-welded in forging of drop-welding , forging , deep-drawing , pressing and/or drop-forging of said folding over sheet into a semi-finished valve produce () that corresponds to a circle segment of a valve cut open in the axial direction;{'b': '12', 'wherein the folded part forming a segment of a valve head () after forming.'}2444. The method for the production of a semi-finished valve product () according to claim 1 , with the circle segment corresponding to a semi-circle and therefore the semi-finished valve product () to a half shell claim 1 , or with the circle segment at least corresponding to a third-circle and thus the semi-finished valve product () at least to a third-shell.34. A semi-finished valve product () claim 1 , in the form of a circle segment of a valve cut open in the axial direction claim 1 , produced according to one of the method of .4444. The semi-finished valve product () according to claim 3 , with the circle segment corresponding to a semi-circle and thus the semi-finished valve product () to a half shell claim 3 , or with the circle segment at least corresponding to a third-circle and thus the semi-finished valve product () at least to a third-shell.5444244. The method for the production of a valve of at least two semi-finished valve products () according to claim 3 , with the method comprising provision of at least two semi- ...

Two-cycle internal combustion engine

CYLINDER HEAD

Die Erfindung betrifft einen Zylinderkopf, der einen Brennraum (6) einer Brennkraftmaschine mit innerer Verbrennung abschließt, wobei der Zylinderkopf zumindest einen Einlasskanal (5), einen Ventilsitzring (7) mit einer Sitzkante (8) und ein Einlassventil (1) aufweist, das in einer geschlossenen Stellung an der Sitzkante (8) anliegt und durch das eine Einlassöffnung (12) in den Brennraum (6) freigebbar ist, wobei in dem Einlasskanal (5) eine verschiebbare Leiteinrichtung angeordnet ist. Aufgabe der vorliegenden Erfindung ist es eine Verbrennung für Ottomotoren zu verbessern, wobei Sekundärströmungen reduziert oder eliminiert werden sollen. Diese Aufgabe wird durch einen eingangs erwähnten Zylinderkopf erfindungsgemäß dadurch gelöst, dass die Leiteinrichtung eine Blende (3) aufweist, die im Wesentlichen in einer Ebene (ε) parallel zur Sitzkante (8) verschiebbar ist, um eine Tumbleströmung zu erhalten. The invention relates to a cylinder head which closes off a combustion chamber (6) of an internal combustion engine, the cylinder head having at least one inlet duct (5), a valve seat ring (7) with a seat edge (8) and an inlet valve (1), which in is in a closed position on the seat edge (8) and through which an inlet opening (12) can be opened into the combustion chamber (6), a displaceable guide device being arranged in the inlet channel (5). The object of the present invention is to improve combustion for gasoline engines, secondary flows to be reduced or eliminated. This object is achieved according to the invention by a cylinder head mentioned at the outset in that the guide device has an orifice (3) which can be displaced essentially in one plane (ε) parallel to the seat edge (8) in order to obtain a tumble flow.

Intake passage for internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Exhaust valves for large two-cycle diesel engines, processes for reducing NOx formation in such engines, and such engines

Engine valve

提供一种用于内燃机(100)中的阀门。所述阀门包括阀头。所述阀头(138)包括被构造成面向所述内燃机(100)的燃烧室(110)的燃烧面(140)。所述燃烧面(140)包括成角度的侧部(152)。所述燃烧面(140)还包括限定内径(Di)和外径(Do)的中央凹部(144)。所述内径(Di)和所述外径(Do)一起限定所述中央凹部(144)的深度(DR)。所述阀门还包括被构造成将所述阀头(138)与所述阀门的阀杆(168)连接的颈部(166)。

Air intake device in engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Engine valve operating system

로커 아암(36)에 제1 및 제2 연결부가(61a, 62a)가 병렬적으로 상대 회동 가능하게 연결되고, 제2 링크 아암(62)의 가동 지지부(62b)가, 제1 링크 아암(61)의 고정 지지부(61b)보다도 기관 밸브(19) 측에 배치된다. 이에 의해 컴팩트화를 도모하는 동시에 개폐 작동의 추종성을 확보하도록 한 뒤에, 구동 수단의 신뢰성 및 내구성을 높일 수 있도록 하면서 기관 밸브의 리프트량을 연속적으로 변화시킬 수 있다.

Air flow spraying and flow disturbing device in cylinder of internal combustion engine

本发明公开了一种内燃机缸内气流喷雾扰流装置，包括壳体机构、点火机构、曲柄连杆机构、喷雾扰流机构，所述壳体机构内部设置有所述点火机构，所述点火机构下侧设置有所述曲柄连杆机构，所述点火机构和所述曲柄连杆机构之间设置有所述喷雾扰流机构。本发明利用加速阀和锥形加速块形成侧向低压，正向高压气流，从而对油雾进行加速，提高喷油效果，利用扰流槽的螺旋结构，提高扰流效果，并且能够利用下开口大的情况，提高雾化冲击效果，且保证油雾的扩散性，提高燃烧性。

Engine valve

提供一种用于内燃机(100)中的阀门。所述阀门包括阀头。所述阀头(138)包括被构造成面向所述内燃机(100)的燃烧室(110)的燃烧面(140)。所述燃烧面(140)包括成角度的侧部(152)。所述燃烧面(140)还包括限定内径(Di)和外径(Do)的中央凹部(144)。所述内径(Di)和所述外径(Do)一起限定所述中央凹部(144)的深度(DR)。所述阀门还包括被构造成将所述阀头(138)与所述阀门的阀杆(168)连接的颈部(166)。

Variable valve gear of internal combustion engine

【課題】製造作業や組付作業能率の向上によるコストの低減化が図れると共に、機関の低速低負荷時などにおける最小リフト制御時の機関回転の安定化と燃費の向上が図れる可変動弁装置を提供する。 【解決手段】駆動軸４に一体的に設けられた一気筒当たり一つの駆動カム５と、該駆動カムの回転力を揺動運動に変換する駆動伝達機構７を介して各吸気弁３，３をそれぞれ開閉作動させる２つの揺動カム６，６と、駆動伝達機構の姿勢を変化させて、各吸気弁のリフト量と作動角を可変にする制御機構８と、を備えている。駆動伝達機構のロッカアーム１３は、Ｙ字形状の各他端部１３ｂ、１３ｃの第１連係部１３ｅを第２連係部１３ｆより所定量だけ突出させて、ロッカアームの各揺動カムに対するロッカ比をそれぞれ変えることによって最小リフト制御時の両吸気弁のリフト量を異ならせた。 【選択図】図１

Patent RU2015131340A3

ВУ“? 2015131340” АЗ Дата публикации: 04.02.2019 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2015131340/06(048282) 28.07.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 192014013503.9 14.09.2014 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) КЛАПАН ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ Заявитель: МАН ТРАК УНЛД БАС АГ, РЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕОЛТ. 3/20 (2006.01) ЕОТТ. 3/22 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е011.3/00-Е011.3/24 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепес РАТЕМТЗСОРЕ, Рабеагсв, ОЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 3 ХУ |195 1160028 (УВЮНТ ЗОНМ Т,, 09.11. ...

Valve timing control device of internal combustion engine

본 발명은 타이밍 스프로켓(1)과 캠축(2)을 하우징(6) 내의 진각측 유압실(32)과 지각측 유압실(33)에의 상대적인 유압의 공급 배출에 의해서 베인(3)을 정역 회전시켜 상대 회전 위상을 변환시켜서 흡기 밸브의 개폐 시기를 변경 가능하게 한다. 또, 캠축의 정의 회전 변동 토크에 따른 베인의 지각측으로부터 진각측으로의 회전시에 있어서의 역회전을 규제하는 규제 기구(10)를 설치했다. 이 규제 기구는 고압실(54)에 공급된 유압에 의해서 플런저(52)를 진출시켜 일측면(13a)에 항상 접촉시키고, 체크 밸브(56)에 의한 플런저(52)의 압박력에 의해 정의 변동 토크에 대하여 대항시키도록 했다. 베인의 회전중에 있어서의 캠축의 회전 변동 토크에 따른 역복귀 현상이 규제되어 밸브 타이밍의 제어 응답성이 향상된다. According to the present invention, the vane (3) is reversely rotated by the timing sprocket (1) and the camshaft (2) by supplying and discharging the relative hydraulic pressure to the advancing side hydraulic chamber (32) and the perceptual side hydraulic chamber (33) in the housing (6). By changing the relative rotation phase, the opening and closing timing of the intake valve can be changed. Moreover, the regulation mechanism 10 which regulates the reverse rotation at the time of rotation from the perception side of the vane to the advance side according to the positive rotational fluctuation torque of the camshaft was provided. This regulating mechanism advances the plunger 52 by the hydraulic pressure supplied to the high pressure chamber 54, and always makes contact with the one side surface 13a, and positive fluctuation torque by the pressing force of the plunger 52 by the check valve 56. I had to fight against. The reverse return phenomenon due to the rotational fluctuation torque of the camshaft during the rotation of the vanes is regulated, so that the control response of the valve timing is improved.

Cylinder structure of internal combustion engine

A cylinder structure satisfies the following conditions: 12% ‰¤ d/a ‰¤ 27%, where d is a distance between a cylinder inner surface 12a and an exhaust valve member 20b, and a is a diameter of the exhaust valve member; 40% ‰¤ c/b ‰¤ 50%, where c is a length of a non-guided portion of the exhaust valve 20 located below a lower end of a sleeve 26 when the exhaust valve 20 is closed, and b is a diameter of a cylinder bore; and 0.5% ‰¤ e/S ‰¤ 0.8%, where e is a gap between an exhaust valve rod 20a and the sleeve 26 and S is a diameter of the exhaust valve rod 20a. With the distance d increased, the length c of the non-guided portion shortened, and the gap e reduced, there is no unevenness in the flow of combustion exhaust gas g around the exhaust valve member 20b so that the exhaust valve member 20b does not contact the valve seat 24 on one side only, which prevents uneven wear on these components.

A device for pneumatic injection of fuel into the cylinder of a percussion piston engine

METHOD FOR MANUFACTURING A CYLINDER HEAD WITH A FLOW GUIDE WALL AT A VALVE SEAT

Valve, in particular inlet valve for gas engine

Cylinder head machining method for internal combustion engine i.e. four-stroke internal combustion engine, involves locating distinct machining plate far away from valve seat when another distinct machining plate machines valve seat

The method involves machining a connected valve seat (2) and a cylindrical side plate (3) in same direction respectively by distinct machining plates (53, 54). The side plate is formed in a cylinder head concentric with the valve seat. The plates are assembled on a same machining tool holder. One of the distinct machining plates is located far away from the valve seat when the other distinct machining plate machines the valve seat. A distinct orientation is presented with respect to cut direction by a set of plates (51, 52).

Intake valve for gasoline engine

L’invention concerne une soupape d’admission (1) de moteur à essence de véhicule automobile, comprenant : - une tige de soupape (11) d’axe longitudinal (L), - une tête de soupape (13) destinée à ouvrir ou à fermer une chambre de combustion (3) du moteur à essence, et- une zone de transition (12) reliant la tige de soupape (11) à la tête de soupape (13). Selon l’invention, la tige de soupape (11) comprend au moins deux portions cylindriques de diamètres différents (110,111, 112), dont une portion cylindrique primaire (110) présentant un premier rayon (R1) supérieur au rayon (R2, R3) de la ou des portion(s) restante(s) (111, 112) de la tige de soupape (11). La zone de transition (12) relie la portion cylindrique primaire (110) à la tête de la soupape (13). Enfin, la zone de transition (12) est sous forme d’un cône tronqué comprenant une grande base (122) située du côté de la tête de la soupape (13) et une petite base (121) située du côté de la portion cylindrique primaire (110).Figure pour l’abrégé : figure 1 The invention relates to an intake valve (1) for a gasoline engine of a motor vehicle, comprising: - a valve stem (11) of longitudinal axis (L), - a valve head (13) intended to open or to close a combustion chamber (3) of the gasoline engine, and- a transition zone (12) connecting the valve stem (11) to the valve head (13). According to the invention, the valve stem (11) comprises at least two cylindrical portions of different diameters (110, 111, 112), including a primary cylindrical portion (110) having a first radius (R1) greater than the radius (R2, R3) of the remaining portion (s) (111, 112) of the valve stem (11). The transition zone (12) connects the primary cylindrical portion (110) to the head of the valve (13). Finally, the transition zone (12) is in the form of a truncated cone comprising a large base (122) located on the side of the valve head (13) and a small base (121) located on the side of the cylindrical portion. primary (110) Figure for the ...

Improved structure of an intake duct associated with the combustion chamber of an internal combustion engine with intake air turbulence

CYLINDER HEAD COMPRISING INTAKE PIPES PROVIDED WITH ROTATION GENERATOR RINGS.

EXHAUST VALVE SEAT WITH AN OPTIMIZED AERODYNAMIC PROFILE

La présente invention a pour objet un siège de soupape (1) pour conduit d’échappement (2) et comprenant au moins deux chanfreins successifs et ayant des angles d’ouverture différents. Selon l’invention, le siège de soupape (1) comprend en outre un tronçon courbe (13) disposé à la suite des chanfreins successifs. Ledit tronçon courbe (13) est délimité par une surface de révolution (S) qui est générée par la rotation d’un arc de cercle autour d’un axe principal (X-X’) du siège. Ledit arc de cercle s’étend entre une extrémité amont et une extrémité avale. Ladite extrémité avale est destinée à former un point tangent entre l’arc de cercle et une droite génératrice d’un tronçon sensiblement cylindrique (220) du conduit d’échappement (2) adjacent au tronçon courbe (13). Figure pour l'abrégé : Figure 1 The present invention relates to a valve seat (1) for an exhaust duct (2) and comprising at least two successive chamfers and having different opening angles. According to the invention, the valve seat (1) further comprises a curved section (13) arranged after successive chamfers. Said curved section (13) is delimited by a surface of revolution (S) which is generated by the rotation of an arc of a circle around a main axis (X-X ’) of the seat. Said circular arc extends between an upstream end and a downstream end. Said downstream end is intended to form a tangent point between the arc of a circle and a line generating a substantially cylindrical section (220) of the exhaust duct (2) adjacent to the curved section (13). Figure for abstract: Figure 1

HEAD OF AN INTERNAL COMBUSTION ENGINE

La présente invention concerne une culasse d'un moteur à combustion interne comprenant au niveau du débouché d'un conduit d'échappement dans un cylindre sous un logement (20) d'insertion d'un siège de soupape, un premier chanfrein (21) se terminant par une surface cylindrique (22), la surface cylindrique (22) se terminant par un second chanfrein (23) en forme de croissant qui s'étend sur un angle d'arc de telle sorte qu'il soit orienté par sa largeur maximale vers le centre du cylindre pour permettre d'augmenter la section de passage des gaz entre le siège de soupape et la tête de la soupape d'échappement et ainsi améliorer la perméabilité échappement. The present invention relates to a cylinder head of an internal combustion engine comprising at the outlet of an exhaust pipe in a cylinder under a housing (20) for inserting a valve seat, a first chamfer (21). terminating in a cylindrical surface (22), the cylindrical surface (22) ending in a second crescent-shaped bevel (23) extending at an arc angle so that it is oriented by its width to the center of the cylinder to increase the gas flow section between the valve seat and the head of the exhaust valve and thus improve the exhaust permeability.

Valves for internal combustion engines

VALVE SEAT FOR INTAKE DUCT, THERMAL MOTOR HEAD, AND METHOD OF MANUFACTURE.

Improvements to the intake valves of internal combustion engines

FOUR-STROKE ENGINE INCLUDING A SEPARATOR ON THE INTAKE PIPE

Patent FR2467972B1

INTERNAL COMBUSTION ENGINE WITH VARIABLE TIMING OF THE CAMSHAFT AND MASKING OF THE INTAKE VALVE

La présente invention a pour objet un moteur alternatif à combustion interne (10) comporte un masque pilote situé autour du siège de la soupape d'admission (32) et s'étendant jusque dans le cylindre du moteur (14), ainsi qu'un système de commande de calage d'arbre à cames variable (62, 64) qui positionne l'arbre à cames (54) de façon que la levée de la soupape d'admission (32) et la hauteur du masque pilote soient approximativement égales lorsque le piston se déplace au point de sa vitesse la plus grande pendant le temps d'admission.

Improvements in variable valve timing systems

A valve lifter or valve stem that provides a fine contact point with a variable profile cam that can enable its movement across the cam to provide a greater range of valve timing. The invention also includes a camshaft and camshaft journal system which allows for axial movement of a camshaft based on engine rpm and which further allows for advancing or retarding a camshaft system based on engine rpm.

Intake air guide structure of engine intake valve seat

본 발명은 엔진의 흡기 밸브시트에 관한 것으로 특히, 유체 이동중 흡기 밸브시트 벽에서 발생되는 와류의 형성을 없애 주기주어 기관의 동적성능을 좋게하기 위하여 흡입공기 유도면, 밸브 접촉면, 흡입공기 진입면을 차례로 갖고, 상기 밸브 접촉면이 밸브 페이스면 각각 동일한 45 동의 각도로 맞춰진 것에 대하여, 상기 흡입공기 유도면이 수직상으로 위치하여 형성된 흡입 밸브시트에 있어서, 상기 흡입공기 유도면의 보유각을 밸브 접촉면의 소유각보다 더 크게 적어도 한 개 이상으로 각의 크기가 점진적으로 확대되는 경사면을 형성한 밸브시트의 흡입공기 안내 구조를 구성한 것이다.

Patent FR2095767A5

CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE.

Culasse de moteur à combustion interne comportant au moins un conduit d'admission (3) en mélange air-carburant débouchant dans une chambre de combustion (2) par un siège (7) sur lequel peut s'appliquer une soupape (9), caractérisée en ce que le conduit d'admission (3) est muni de moyens déchireurs (8) du film de carburant qui se dépose sur les parois dudit conduit (3) pour en favoriser la vaporisation lors de l'admission des gaz dans la chambre de combustion (2). Cylinder head of an internal combustion engine comprising at least one air-fuel mixture intake duct (3) opening into a combustion chamber (2) via a seat (7) on which a valve (9) can be applied, characterized in that the intake duct (3) is provided with means (8) for tearing the film of fuel which is deposited on the walls of said duct (3) to promote vaporization thereof during the admission of gases into the chamber of combustion (2).

Cylinder cover for spark ignition internal combustion engine, has anti-reflux elements inserted in inlet and exhaust pipes, where elements have flanges extended from peripheral edge of openings and out of plane of openings

The cover (20) has a base (20A), which is formed at a cylinder head (29) and drilled at an inlet pipe (21) and an exhaust pipe (22). Anti-reflux elements (40A, 40B) inserted in the pipes, where the elements have bodies (41A, 41B) stuck between the base and a valve seat (31). The bodies are localized at openings (43A, 43B) located at a peripheral edge of the elements. The elements have flanges (42A, 42B) extended from the peripheral edge of the openings and out of plane of the openings. The flanges are localized at a circular free edge of the element.

Inlet valve for a cylinder in an combustion engine

INTAKE DUCT RESTRICTION DEVICE

INTAKE VALVE FOR INTERNAL COMBUSTION ENGINES

AIR INTAKE DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND METHOD OF IMPLEMENTING IT.

THERMAL ENGINE WITH INTAKE VALVE SEAT WITH INTRADO AND EXTRADO SHAPES OPTIMIZING AIR FILLING

Un moteur thermique (MT) comprend un conduit d’admission (CA) comprenant une extrémité (EA) munie d’un siège de soupape (SS) ayant un passage interne (PI) dans lequel se translate une soupape d’admission, et une chambre de combustion (CC) alimentée en air issu du conduit d’admission (CA) via le siège de soupape (SS). Ce passage interne (PI) a une partie amont (PA) recevant l’air du conduit d’admission (CA) et comprenant un extrado (EP) ayant une forme prolongeant de façon continue une portion d’une face interne du conduit d’admission (CA) en direction de la face interne de la chambre de combustion (CC) qui définit son toit (TC), et un intrado (IP) ayant une forme contraignant une partie de l’air à circuler en tourbillon autour d’un axe prédéfini dans la chambre de combustion (CC). Figure 1

VALVE SEAT RING FOR A VALVE CONTROLLED INTERNAL COMBUSTION ENGINE INTAKE DUCT

Liquid film evaporation system e.g. for I.C. engine fuel intake

- La présente invention concerne un dispositif destiné à évaporer un film liquide déposé sur une paroi (1) délimitant l'espace dans lequel un fluide est transporté vers un réacteur. - Selon l'invention, ladite paroi comporte des moyens (5) tels que des stries pour étaler ledit film, lesdites stries ayant une profondeur d'environ 100 m, afin d'augmenter l'échange thermique entre l'air, le film et les parois, lesdits moyens étant situés à proximité de l'endroit où ledit conduit débouche dans ledit réacteur. - Une application particulière de l'invention concerne l'évaporation de films de carburant à l'admission de moteurs à combustion interne.

Intake system for e.g. diesel engine, has intake ducts with ports, where ports are shifted radially with respect to central axis of combustion chamber to control variation of swirl level for same speed of internal combustion engine

The system has intake ducts (1, 1`) with ports (7, 7`) opening into a combustion chamber (9), where the opening is controlled by inlet valves. The ports are diametrically opposite with respect to a central axis of the combustion chamber. Two seal valves (6, 6`) disposed in the ducts vary the aerodynamic level such as swirl level, associated to each duct. The ports are shifted radially with respect to the axis of the chamber for controlling the variation of the swirl level for the same speed of an internal combustion engine. An independent claim is also included for a combustion method for an internal combustion engine using an intake system.

Procedure to influence mixture formation and charge movement in cylinders of internal combustion piston engine entails valves moving in dependence upon piston stroke with lift variation depending upon load conditions

The procedure is to influence the mixture formation and charge movement in the cylinders of an internal combustion piston engine with at least one inlet valve and at least one exhaust valve per cylinder. In a predetermined RPM range and/or with predetermined load conditions, at least a part of the gas inlet valves and/or exhaust valves is movable depending upon the piston stroke with a lift variation which is variable with regard to opening and closing points and/or opening time, opening width and/or opening duration and/or speed of movement.

Method for introducing highly precompressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve therefor and internal combustion engine having such a high-pressure inlet valve

Es werden ein Verfahren zum Einbringen von Verbrennungsluft in einen Zylinder (25) einer Verbrennungskraftmaschine, ein dafür vorgesehenes Hochdruckeinlassventil (1) und eine mit dem Verfahren und dem Hochdruckeinlassventil arbeitende Verbrennungskraftmaschine beschrieben. Dabei wird die komplette Verbrennungsluft für die jeweiligen Zylinder (25) mittels eines in dem jeweiligen Zylinderkopf (26) angeordneten Hochdruckeinlassventil (1) auf Basis eines gesteuerten Massenstromes so in den Zylinder (25) der Verbrennungskraftmaschine eingeführt, dass Gemischbildung und Ladungswechsel intensiviert werden. Zusätzlich werden Temperatur und/oder Druck der Verbrennungsluft gemessen und die Menge an Verbrennungsluft auf Basis der Messergebnisse mit dem Hochdruckeinlassventil (1) gesteuert in den Zylinder (25) eingeführt, indem ein Schiebekolben (3) des Hochdruckeinlassventils (1) durch Verschieben geöffnet oder geschlossen wird. Durch eine axiale Verschiebung des Schiebekolbens (3) zwischen Führungsabschnitten (5) im Gehäuse (2) des Hochdruckeinlassventils (1) werden Durchtrittsbereiche6für Verbrennungsluft in einer Schließposition (7) gesperrt und in einer Durchlassposition (8) geöffnet. Der Schiebekolben (3) weist im Durchtrittsbereich (6) zwei aufeinanderzugewandte Druckbeaufschlagungsbereiche (10, 11) auf, deren in eine Ebene projizierte Flächen gleich groß oder voneinander abweichend sind. Der erste Druckbeaufschlagungsbereich (10) kann in der Art eines Tellerventils (12) und der zweite Druckbeaufschlagungsbereich (11) als Ringfläche (13) ausgebildet sein. Die Verbrennungskraftmaschine weist eine Hochdruckleitung (27) für die Verbrennungsluft auf, welche an das Hochdruckeinlassventil (1) angeschlossenen ist. Bezogen auf die Längsachse des Zylinders (25) ist das Hochdruckeinlassventil (1) im Zylinderkopf 26 stehend oder liegend angeordnet.

Cylinder heads and valve seats for internal combustion engines

882,706. Cylinder inlet passages; valve seats. LEYLAND MOTORS Ltd. Sept. 18, 1958 [Sept. 18, 1957], No. 29390/57. Classes 7(2) and 7(6). In an engine having an air inlet passage 3 inclined to the cylinder head surface 1 and tangential to the cylinder, an inserted valve seat 5 has the axis of its opening inclined to the surface 1 and substantially aligned with the axis of the end of the air inlet passage. The passage 3 is inclined to the surface 1 at about 42 degrees and may be cast a little smaller than the valve opening and ground to exact alignment with the valve seat bore. Specifications 423,316 and 698,495 are referred to.

Internal injection engine

불꽃점화식 통내분사형 엔진에 있어서, 인젝터로부터의 분무가 연소실의 벽면에 부착하는 것을 방지하면서, 착화안정성을 확보하여 효과적으로 성층연소를 행하게할 수 있도록 한다. In a spark ignition type cylinder injection type engine, spraying from an injector is prevented from adhering to the wall surface of a combustion chamber, and ignition stability is made to perform stratified combustion effectively. 연소실(5)의 거의 주위 가장자리부에 배치한 인젝터(15)의 선단부로부터 이것에 대향하는 연소실단까지의 거리(L)를, 압축행정 후기분사에 있어서의 분사개시부터 점화시기까지 동안의 분무도달거리(11)보다도 크게 설정함과 동시에, 인젝터(15)로부터의 분무에리어 내에 점화갭(16a)을 개재시켜서, 인젝터 선단부로부터 점화갭(16a)까지의 거리(12)를 상기 분무도달거리(11)보다도 작게 설정함으로써, 인젝터(15)로부터의 분무가 점화시기에 연소실 벽면까지 달해있지 않고, 또한 점화갭(16a) 주위에 존재하고 있는 상태가 얻어지도록 한다. Spraying the distance L from the distal end of the injector 15 disposed near the periphery of the combustion chamber 5 to the end of the combustion chamber opposite to this, from the start of injection in the post-compression stroke injection to the ignition time While setting the distance larger than the distance 11 and interposing the ignition gap 16a in the spray area from the injector 15, the distance 12 from the injector tip to the ignition gap 16a is set to the spray reaching distance 11. By setting smaller than), it is possible to obtain a state in which the spray from the injector 15 does not reach the combustion chamber wall surface at the time of ignition and exists around the ignition gap 16a.

Internal combustion engine

Cylinder head and engine

IMPROVEMENT IN VALVE ARRANGEMENTS TO IMPROVE THE SUPPLY OF ALTERNATIVE ENDOTHERMAL MOTORS

Engine valve operating system

First and second connecting portions 61 a and 62 a are arranged in parallel and relatively turnably connected to a rocker arm 36 and a movable support portion 62 b of a second link arm 62 is placed nearer to an engine valve 19 than a fixed support portion 61 b of a first link arm 61 . This makes it possible to decrease the size of a valve operating system and ensure the follow-up ability of the opening/closing operation as well as to vary a lift amount of the engine valve continuously while maintaining the reliability and durability of drive means.

Intake port shape of internal combustion engine

Method for introducing highly precompressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve therefor and internal combustion engine having such a high-pressure inlet valve.

Se describen un método para introducir aire de combustión en un cilindro (25) de un motor de combustión interna, una válvula de admisión de alta presión (1) proporcionada para el mismo y un motor de combustión interna que opera utilizando el método y la válvula de admisión de alta presión. Todo el aire de combustión para los respectivos cilindros (25) se introduce en el cilindro (25) del motor de combustión interna, por medio de una válvula de admisión de alta presión (1) dispuesta en la culata del cilindro correspondiente (26) y sobre la base de un flujo másico controlado, de tal manera que se intensifiquen la formación de la mezcla y el intercambio de carga. Además, se mide la temperatura y/o la presión del aire de combustión y la cantidad de aire de combustión se introduce en el cilindro (25), de forma controlada y en base a los resultados de la medición, mediante la válvula de admisión de alta presión (1) abriendo o cerrando un pistón deslizante (3) de la válvula de admisión de alta presión (1) por desplazamiento. Como resultado de un desplazamiento axial del pistón deslizante (3) entre las secciones guía (5) en el alojamiento (2) de la válvula de admisión de alta presión (1), las áreas de paso (6) para el aire de combustión se bloquean en una posición cerrada (7) y se abren en una posición abierta (8). En el área de paso (6), el pistón deslizante (3) tiene dos áreas de presurización (10, 11) enfrentadas, cuyas superficies son de igual tamaño o difieren entre sí cuando se proyectan en un plano. La primera área de presurización (10) puede diseñarse como una válvula de vástago (12) y la segunda área de presurización (11) puede diseñarse como una superficie anular (13). El motor de combustión interna tiene una línea de alta presión (27) para el aire de combustión, cuya línea se conecta a la válvula de admisión de alta presión (1). Con respecto al eje longitudinal del cilindro (25), la válvula de admisión de alta presión (1) se dispone en la culata del cilindro (26) ...

Internal combustion engine

System for rotationally immobilising a valve

The present invention relates to a system for rotationally immobilising a valve 1, the said valve 1 being controlled by cyclic actuating means 12. This system includes first guide means 20, 21 rotationally secured to the said valve 1 and second guide means 18 secured to the said actuating means 12. The said first and second means mutually interact to prevent the rotation of the said valve. The present invention may be applied to valves of internal combustion engines.

Improvements relating to internal combustion engines with direct fuel injection

861,080. Direct-injection engines; inlet valves and ports. DAIMLER-BENZ A.G. Feb. 25, 1959, No. 6564/59. Classes 7(2), 7(3) and 7(6). In a fuel injection engine with a combustion chamber 2 formed as a body of rotation in the piston 1 with a wide outlet opening 3, the admission valve is provided with means such as a mask 7 to produce rotation of the air and is either countersunk, Fig. 1, or provided with a cylindrical portion 9, Fig. 3, above or below the seat 8 to produce rapid opening of the port, the valve being controlled by a cam 10, Fig. 4, with a flattened highest portion b<SP>11</SP> extending over at least 30 degrees. The mask 7 may be replaced by fins or by a deflecting grid in the intake passage, or the intake passage may be spirally shaped adjacent the port. The fuel injector provides four equally spaced jets.

Engine control system has calculation unit to compute valve opening timing of inlet valve, based on computed air fuel ratio target

Engine is provided with electromagnetic driving type intake and exhaust valves (2,3). Engine control system has a calculation unit to compute valve opening timing depending on air fuel ratio target, computed by air fuel ratio calculation unit.

Valve device and valve guide member

本发明涉及一种用于将空气供应到内燃机的阀装置。所述阀装置包括第一阀和第二阀，所述第二阀布置在所述第一阀内。本发明也涉及一种用于阀装置的阀引导部件。

Poppet valve and method of manufacturing the same

本发明提供了一种用于内燃机的提升阀，包括：阀体，具有阀杆和阀头；和至少一个凸起，该凸起具有预定形状，并位于阀杆上；其中，至少一个凸起由至少一个焊缝形成，至少一个焊缝通过使用焊接工艺将材料沉积在阀杆的外表面上而获得。此外，提供了一种制造在阀杆上具有凸起的提升阀的方法。

Inlet channel in IC engine cylinder head

The inlet channel is opened/closed by the valve plate of an inlet valve. It consists of a narrow section, with a connecting expanding section ending at a conical valve seat. This forms an acutely angled inlet nozzle with the rear of the valve plate. The narrowest part of the narrow channel section (2/1) is positioned eccentrically behind the inlet valve plate (3), to form an eccentrically acting nozzle (10). From its widest point, the channel extends, decreasing in size and unsymmetrically, towards the narrowest channel section, and then widens non-symmetrically towards the valve seat (8).

Valve timing control device of internal combustion engine

Cylinder head component and method for producing such

Die Erfindung betrifft Verfahren zur Herstellung eines Zylinderkopfbauteils (11) mit Bereitstellen einer Kokillenanordnung (1), umfassend ein Brennraum-bildendes Kühlelement (2) und ein Luftkanal-bildendes Kernelement (4), Koppeln des Kühlelements (2) und des Kernelements (4) mittels eines zwischen dem Kernelement (4) und dem Kühlelement (2) wirkenden Kernschlosses, wobei in einem Kernschlossbereich (5) des Kühlelements (2) ein Formelement (6) zum Vorformen einer Ventilsitzgeometrie (13) ausgebildet ist und zwischen Kühlelement (2) und Formelement (6) eine Koppelebene (10) verläuft, in der eine Anschlussfläche (7) des Kühlelements (2) und eine Anschlussfläche (8) des Kernelements (4) aneinander liegen, die Koppelebene (10) entlang einer zu dieser senkrecht verlaufenden Normalen (12) so zwischen Kernelement (4) und Kühlelement (2) angeordnet ist, und das Formelement (6) und das Kernelement (4) so ausgebildet sind, dass bei einer Bearbeitung eines mittels der Kokillenanordnung (1) hergestellten Zylinderkopfbauteils (11) entlang der Normalen (12) eine vollständige Ventilsitzgeometrie (13) in einem einzigen Arbeitsgang mit einer einzigen ersten Werkzeuggeometrie (20) herstellbar ist, Gießen eines Zylinderkopfbauteils (11) in der Kokillenanordnung (1), Ausbilden der Ventilsitzgeometrie (13) im Zylinderkopfbauteil (11) mittels eines einzigen Werkzeugs (18) welches die erste Werkzeuggeometrie (20) aufweist. Die Erfindung betrifft auch eine Kokillenanordnung (1) zum Ausführen des Verfahrens, ein entsprechend hergestelltes Zylinderkopfbauteil (11) und ein Werkzeug (18) zur Bearbeitung eines Zylinderkopfbauteils (11). The invention relates to a method for producing a cylinder head component (11) with provision of a mold assembly (1), comprising a combustion chamber-forming cooling element (2) and an air channel-forming core element (4), coupling the cooling element (2) and the core element (4). by means of a core lock acting between the core element (4) and the cooling ...

Valve gear system of engine

本发明提供一种发动机的气门传动装置，在其摇臂(36)上，并列且可相对转动地连接有第一和第二连接部(61a、62a)，第二连杆臂(62)的可动支承部(62b)与第一连杆臂(61)的固定支承部(61b)相比，更靠近发动机气门(19)侧配置。从而，在实现小型化的同时，可确保气门开闭动作的跟随性，此外，既可提高驱动单元的可靠性和耐久性，又可使发动机气门的升程量连续变化。

Improvements in and relating to inlet valves for internal combustion engines

465,261. Valves. BLANCHET, J. Jan. 18, 1937, Nos. 1492 and 1493. Convention dates, Jan. 16, 1936 and Jan. 14, 1937. [Class 7 (vi)] Inlet valves which are formed with a deflector at one side of the valve head for causing the gases to follow the wall of the cylinder are provided with a balancing mass or recess arranged to bring the centre of gravity of the valve substantially on to its axis. Fig. 2 shows a valve with a deflector 1, the balance being obtained by the addition of a mass 4 at the opposite side of the head. Fig. 9 shows a valve in which the deflector takes the form of a sector-shaped plate 5, the mass 4 being formed on the opposite side of the stem. Such a mass on the stem may be made of streamline profile to facilitate the flow of the gases. Instead of adding a mass 4, an equivalent recess may be formed in the valve at the same side as the deflector

Cylinder structure of internal combustion engine

DEVICE TO PRODUCE A TORSIONAL MOVEMENT TO LOAD THE CYLINDER OF AN INTERNAL COMBUSTION PLUG MACHINE, COMMANDED BY VALVE

Engine with direct fuel injection in combustion chamber

The engine has a combustion chamber into which fuel is injected directly, and a loading device. A variable valve operating mechanism is provided for a charge-cycle valve to change the control timing of the inlet charge cycle valve. The opening period of the inlet-charge cycle valve is modifiable, and the control timing of the charge cycle valve is varied between the maximum and minimum values. An independent claim is also included for a method for the operation of an internal combustion engine.

VALVE FOR INTERNAL COMBUSTION ENGINE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 131 340 A (51) МПК F01L 3/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015131340, 28.07.2015 (71) Заявитель(и): МАН ТРАК УНД БАС АГ (DE) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БЕМЕ Ульрих (DE) 14.09.2014 DE 102014013503.9 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 5 1 3 1 3 4 0 R U A (57) Формула изобретения 1. Клапан (1), предпочтительно газовыпускной и/или газообменный клапан (1), для двигателя внутреннего сгорания, предпочтительно для автомобиля, имеющий стержень (2) клапана и тарелку (3) клапана, которая имеет переднюю поверхность (3.1) и заднюю поверхность (3.2), отличающийся тем, что a) передняя поверхность (3.1) тарелки (3) клапана является выпуклой наружу, и клапан (1) выполнен в виде сплошного клапана, и/или b) нейтральное волокно (4) тарелки (3) клапана проходит отдельными участками со стороны нагрузки воображаемой базовой плоскости (BE), при этом базовая плоскость (BE) проходит через эффективную середину (М) опорной поверхности (3.3) клапана на тарелке (3) клапана и поперек стержня (2) клапана. 2. Клапан (1) по п. 1, отличающийся тем, что угол «тюльпана» (α) задней поверхности (3.2) тарелки (3) клапана меньше 20°, 15°, 12°, 10° или 8°. 3. Клапан (1) по п. 1 или 2, отличающийся тем, что опорная поверхность (3.3) клапана на тарелке (3) клапана выполнена скошенной, и/или угол (β) седла клапана опорной поверхности (3.3) на тарелке (3) клапана больше 25°, 30°, 35°, 40° или 45°. 4. Клапан (1) по п. 1, отличающийся тем, что угол (β) седла клапана опорной поверхности (3.3) на тарелке (3) клапана меньше 70°, 65°, 60°, 55° или 50°. 5. Клапан (1) по п. 1, отличающийся тем, что нейтральное волокно (4) тарелки (3) клапана является выпуклым в направлении стороны (Р) нагрузки. 6. Клапан (1) по п. 1, отличающийся тем, что область (4.1) вершины нейтрального ...

Internal combustion engine with direct fuel injection

Valve

The invention is related to an arrangement that is designed to govern inlet and outlet gas mixtures and is used mainly in four stroke combustion engines. Already existing designees is of a nature that they limit the performance of the four-stroke engine mainly as a result of the weight and its flow-technical design. The invention resolve this problem mainly as a result of that the new valve is lighter and has a better flow-technical design. This is a result of that the new valve design allows both the inlet and outlet gas mixtures to flow inside and through the valve body (find drawing A2) thus as a result the valve design is lighter and has an higher efficiency due to the flow-technical design that allows for that no valve shaft is put in the middle of the flow path. The invention is mainly used in the transportation industry.

Engine, preferably a reciprocating engine

Intake system for an internal combustion engine

Engine valve