Method of compensating for injector aging

A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.

METHODS AND SYSTEMS FOR A FUEL INJECTOR

Methods and systems are provided for a fuel injector. In one example, a system may include an injection nozzle having a venturi shape with an upstream twisted fin arranged in a venturi inlet. The system may further include a downstream twisted fin arranged in a venturi outlet. 1. A system , comprising:an injector having a venturi-shaped nozzle, wherein the nozzle comprises a plurality of upstream twisted fins arranged in a venturi inlet of the nozzle, and where a leading edge of an upstream twisted fin of the plurality of upstream twisted fins is perpendicular to a trailing edge of the twisted fin.2. The system of claim 1 , wherein the nozzle further comprises a plurality of downstream twisted fins arranged in a venturi outlet of the nozzle claim 1 , and where the plurality of downstream twisted fins is identical to the plurality of upstream twisted fins in shape.3. The system of claim 2 , wherein a leading edge of a downstream twisted fin of the plurality of downstream twisted fins is oriented at an angle relative to the leading edge of the upstream twisted fin of the upstream twisted fins.4. The system of claim 3 , wherein the angle is equal to 45°.5. The system of claim 2 , wherein a width of each of the plurality of downstream twisted fins is equal to 40% of a diameter of the venturi outlet claim 2 , and where the diameter of the venturi outlet increases in a downstream direction.6. The system of claim 1 , wherein a venturi throat of the nozzle is arranged between the venturi inlet and a venturi outlet claim 1 , and where the upstream twisted fins do not extend into the venturi throat.7. The system of claim 1 , wherein a diameter of the venturi inlet decreases in a downstream direction claim 1 , and where a width of each of the plurality of upstream twisted fins decreases in the downstream direction claim 1 , and where the width is equal to 40% of the diameter of the venturi outlet.8. The system of claim 1 , where the plurality of upstream twisted fins is ...

METHODS AND SYSTEMS FOR A FUEL INJECTOR

Methods and systems are provided for an injector. In one example, the injector comprises at least two passages, wherein outlets of each of the passages are differently shaped than corresponding inlets of the passages. 1. An injector , comprising:a first injector nozzle passage twisting from a first inlet to a first outlet, the first inlet shaped differently than the first outlet; anda second injector nozzle passage twisting from a second inlet to a second outlet, the second inlet shaped differently than the second outlet.2. The injector of claim 1 , wherein the first and second injector nozzle passages are fluidly coupled to a combustion chamber.3. The injector of claim 1 , wherein the first inlet and the second inlet are identically shaped claim 1 , and where a shape of the first inlet and the second inlet is a circle claim 1 , a rectangle claim 1 , or a square.4. The injector of claim 1 , wherein the first outlet and second outlet are differently shaped claim 1 , and where a shape of the first outlet and the second outlet is one of a football claim 1 , a boat claim 1 , a sombrero claim 1 , a cross claim 1 , a smiley face claim 1 , a circle claim 1 , and a rectangle.5. The injector of claim 1 , wherein the first injector nozzle passage twists claim 1 , along a length of the first injector nozzle passage claim 1 , as it transitions from a shape of the first inlet to a shape of the first outlet.6. The injector of claim 1 , wherein the second injector nozzle passage twists claim 1 , along a length of the second injector nozzle passage claim 1 , as it transitions from a shape of the second inlet to a shape of the second outlet.7. The injector of claim 1 , wherein a cross-section at a midpoint of the first injector nozzle passage equally resembles a shape of the first inlet and a shape of the first outlet.8. The injector of claim 1 , wherein a cross-section at a midpoint of the second injector nozzle passage equally resembles a shape of the second inlet and a shape of ...

Working Method of Orifice and Fuel Injection Valve

An object of the present invention is to provide a working method of an orifice, which has excellent working accuracy and high productivity in order to work an inclination portion (tapered portion) on the entire circumference of an inner wall of an orifice. Therefore, a working method of an orifice includes a first step of forming an orifice hole in an orifice forming member, a second step of pressing a downstream end surface of the orifice forming member in which the orifice hole opens, in a direction toward an upstream side of the orifice hole by a punch having a cutting blade portion larger than a cross section of the orifice hole . The second step causes a material of the orifice forming member to flow from an entire circumference at the downstream end portion of the orifice hole to an inside of the orifice hole to form a cross-sectional area reduction portion in which a cross-sectional area of the orifice hole is reduced from an upstream side to a downstream side. 1. A working method of an orifice , the working method comprising:a first step of forming an orifice hole in an orifice forming member;a second step of pressing a downstream end surface of the orifice forming member in which the orifice hole opens, in a direction toward an upstream side of the orifice hole by a punch having a cutting blade portion larger than a cross section of the orifice hole,wherein the second step causes a material of the orifice forming member to flow from an entire circumference at a downstream end portion of the orifice hole to an inside of the orifice hole to form a cross-sectional area reduction portion in which a cross-sectional area of the orifice hole is reduced from an upstream side to a downstream side.2. The working method of an orifice according to claim 1 , wherein the orifice hole has a circular cross section.3. The working method of an orifice according to claim 2 , wherein claim 2 , in the second step claim 2 , a first recess portion is formed in a downstream ...

Control system for internal combustion engine and controlling method for internal combustion engine

A control system executes failure detection of a direct injector when a port injector stops injection and the direct injector injects, and executes the failure detection when a recirculation passage is closed by an EGR valve.

FUEL INJECTOR

The invention relates to a fuel injector (), comprising a nozzle body () in which a blind hole () is formed, wherein at least one injection opening () leads off same, comprising a nozzle needle (to ) that is reciprocatingly movable along a longitudinal axis (), wherein the nozzle needle (-) has a valve seat () which forms a sealing seat () with a seating surface () in the nozzle body () in a lowered position of the nozzle needle (-), and comprising at least one borehole (-) in the nozzle needle (-), wherein at least some portions of a borehole inlet () of the at least one borehole (-) are located in the region of the seating surface () when the sealing seat () is formed, and a borehole outlet () of the at least one borehole (-) is located below the valve seat () of the nozzle needle (-) in the direction of the longitudinal axis (). 110. A fuel injector () comprising{'b': 12', '19', '14, 'a nozzle body (), in which a blind hole () is formed, wherein at least one injection opening () leads off from the blind hole,'}{'b': 25', '25', '25', '18', '25', '25', '25', '29', '26', '21', '12', '25', '25', '25, 'i': a', 'c', 'a', 'c', 'a', 'c, 'a nozzle needle (; to ), configured to be moved in a reciprocating manner along a longitudinal axis (), wherein the nozzle needle (; to ) has a valve seat surface (), which forms a sealing seat () with a seat surface () in the nozzle body () in a lowered position of the nozzle needle (; to ), and'}{'b': 34', '34', '34', '25', '25', '25', '36', '34', '34', '34', '21', '26', '34', '34', '34', '29', '25', '25', '25', '18, 'i': a', 'c', 'a', 'c', 'a', 'c', 'a', 'c', 'a', 'c, 'at least one bore (; to ) in the nozzle needle (; to ), wherein at least some portions of a bore inlet () of the at least one bore (; to ) are arranged in a region of the seat surface () when the sealing seat () is formed, and a bore outlet of the at least one bore (; to ) is arranged below the valve seat surface () of the nozzle needle (; to ) in a direction of the ...

ANTI-COKING INJECTOR ASSEMBLY FOR A DIESEL DOSING UNIT, AND METHODS OF CONSTRUCTING AND UTILIZING SAME

An attachment assembly for a fluid injector includes a housing having a first end and a second end; a seat disposed within the housing; and a needle in the housing having a first end, the needle movable between a first position in which the first end of the needle provides a sealing engagement with the seat so as to prevent fluid from exiting the second end of the housing, and a second position in which the first end of the needle extends outwardly from the second end of the housing spaced apart from the seat for allowing fluid in the housing to exit through the second end; and a spring member biasing the needle towards the first position to prevent fluid in the housing from exiting the second end. The first end of the housing attaches to the fluid outlet of a fuel injector for providing an integrated injector assembly. 1. A fluid injector assembly , comprising:a fluid injector comprising a first housing, a fluid inlet disposed at a first end of the first housing for receiving fluid, a fluid outlet disposed at a second end of the first housing for exiting fluid from the first housing, the first housing defining at least in part a fluid path through the first housing between the fluid inlet and the fluid outlet, the fluid injector further including an actuator unit and a valve assembly operably coupled thereto for selectively discharging fluid in the fluid path from the fluid outlet when the valve assembly is in an open state and for preventing fluid in the fluid path from exiting the fluid outlet when the valve assembly is in a closed state; and a second housing having a first end attached or attachable to the second end of the first housing and a second end, the second housing at least partly defining a fluid path between the first end of the second housing and the second end thereof;', 'a seat fixedly disposed within the second housing;', 'an attachment assembly needle movably disposed within the second housing and including a first end portion, the attachment ...

ELECTROMAGNETICALLY ACTUATABLE SUCTION VALVE AND METHOD FOR PRODUCING AN ELECTROMAGNETICALLY ACTUATABLE SUCTION VALVE

The invention relates to an electromagnetically controllable suction valve () for a high-pressure fuel pump (), comprising a magnet assembly () and a hydraulic module (), the hydraulic module () engaging at least in sections in an annular magnet coil () of the magnet assembly (). According to the invention, a heat-conducting material () and/or a heat-conducting body () is/are arranged between the magnet coil () and the hydraulic module (). The invention further relates to a method for producing an electromagnetically actuatable suction valve (). 1121344536754. An electromagnetically actuatable suction valve () for a high-pressure fuel pump () , the valve () comprising a magnet assembly () and a hydraulic module () , wherein at least some section or sections of the hydraulic module () engages or engage in an annular magnet coil () of the magnet assembly () , characterized in that a heat-conducting material () and/or a heat-conducting body () is/are arranged between the magnet coil () and the hydraulic module ().267854. The suction valve as claimed in claim 1 , characterized in that the heat-conducting material () and/or the heat-conducting body () is/are arranged in an annular gap () between the magnet coil () and the hydraulic module ().36. The suction valve as claimed in claim 1 , characterized in that the heat-conducting material () is a heat transfer compound.47. The suction valve as claimed in claim 1 , characterized in that the heat-conducting body () has substantially the shape of a sleeve and/or is elastically deformable.567934. The suction valve as claimed in claim 1 , characterized in that the heat-conducting material () and/or the heat-conducting body () at least partially fills or fill an axial gap () between the magnet assembly () and the hydraulic module ().64115671113126712. The suction valve as claimed in claim 1 , characterized in that the hydraulic module () comprises a pole core () claim 1 , which engages in the magnet coil () and on which the heat ...

Fuel injection device for internal combustion engine

A cylinder injection valve that injects fuel inside a cylinder and an intake passage injection valve that injects fuel inside an intake passage are provided. When it is determined that deposit greater than or equal to a predetermined amount accumulates, the fuel is forcibly injected by the cylinder injection valve (deposit removing control). The deposit removing control is performed when a pressure of the fuel supplied to the cylinder injection valve is greater than or equal to a predetermined value and an engine load is relatively high. On the other hand, the deposit removing control is not performed when the pressure of the fuel supplied to the cylinder injection valve is greater than or equal to the predetermined value and the engine load is low.

IMPROVED INJECTOR ARRANGEMENT FOR DIESEL ENGINES USING SLURRY OR EMULSION FUELS

The present invention relates to a fuel injection arrangement for a diesel type engine configured to use carbonaceous aqueous slurry fuels. The fuel injection arrangement includes an injector nozzle for injecting fuel into a combustion chamber; a pump chamber housing a fuel pumping element for generating a pressurised fuel flow to the injector nozzle along an injection path between the pumping element and the injector nozzle; and a check valve connected to a fuel supply for regulating and supplying fuel to the injection path via a check valve outlet. A region immediately downstream of the check valve outlet defines an outlet region and the check valve is arranged to expose the outlet region to the pressurised fuel flow to facilitate flushing of the outlet region during fuel flow between the pumping element and the injector nozzle. 1. A fuel injection arrangement for a diesel type engine configured to use carbonaceous aqueous slurry fuels , the fuel injection arrangement including:an injector nozzle for injecting fuel into a combustion chamber;a pump chamber housing a fuel pumping element for generating a pressurised fuel flow to the injector nozzle along an injection path between the pumping element and the injector nozzle; anda check valve connected to a fuel supply for regulating and supplying fuel to the injection path via a check valve outlet,wherein a region immediately downstream of the check valve outlet defines an outlet region and wherein the check valve is arranged to expose the outlet region to the pressurised fuel flow to facilitate flushing of the outlet region during fuel flow between the pumping element and the injector nozzle.2. A fuel injection arrangement according to claim 1 , wherein the check valve is integrated within an injection path wall at a periphery of the injection path.3. A fuel injection arrangement according to claim 1 , wherein the outlet region is located within the injection path.4. A fuel injection arrangement according to claim 2 ...

Fuel Injector Valve Seat Assembly Including Insert Sealing Features

A fuel injector including a fuel injector housing (2), a valve seat (4) formed at one end of the fuel injector housing (2), and a valve body (10) disposed in the fuel injector housing (2) and operable to open and close a spray hole (8) in the valve seat. The valve seat (4) includes abase portion (16) and insert portion (26) having spray holes (8) that is secured to the base portion (16).

METHOD FOR RECOGNIZING A STATE OF CHANGE OF A FUEL INJECTOR

A method for recognizing a state change of a fuel injector of an internal combustion engine, in which fuel from a high-pressure accumulator is injected into a combustion chamber with the aid of the fuel injector. A value that is representative of a static flow rate of fuel through the fuel injector is ascertained. A state change of the fuel injector is deduced when the representative value differs from a comparative value by more than a first threshold value. 115-. (canceled)16. A method for recognizing a state change of a fuel injector of an internal combustion engine , in which fuel from a high-pressure accumulator is injected into a combustion chamber with the aid of the fuel injector , the method comprising:ascertaining a value that is representative of a static flow rate of fuel through the fuel injector; anddeducing a state change of the fuel injector when the representative value deviates from a comparative value by more than a first threshold value.17. The method as recited in claim 16 , wherein a functional limitation of the fuel injector is deduced as a state change when a comparative value claim 16 , for which at least one additional fuel injector of the internal combustion engine is taken into account claim 16 , is used as the comparative value.18. The method as recited in claim 17 , wherein a defect that has been present since the fuel injector began operation is deduced as a functional limitation when the representative value deviates from the comparative value without a preceding adaptation of a flow rate of the fuel injector.19. The method as recited in claim 17 , wherein a defect during operation of the fuel injector is deduced as a functional limitation when the representative value deviates from the comparative value after a preceding adaptation of a flow rate of the fuel injector.20. The method as recited in claim 17 , wherein carbonization is deduced as a functional limitation when the representative value deviates from the comparative value ...

INJECTOR FOR INTRODUCING A FLUID WITH IMPROVED JET PREPARATION

An injector for injecting a fluid, in particular for injecting fuel, includes at least one closing element for opening and closing at least one through opening. The through opening includes an injection hole having a first center axis, and a preliminary stage having a second center axis. The first center axis of the injection hole and the second center axis of the preliminary stage of at least one of the through openings diverge. 1. An injector for injecting a fluid , comprising:at least one closing element for opening and closing at least one through opening;wherein the through opening includes an injection hole having a first center axis, and a preliminary stage having a second center axis, andwherein the first center axis of the injection hole and the second center axis of the preliminary stage of at least one of the through openings diverging.2. The injector of claim 1 , wherein the first center axis is situated in parallel to and spaced apart from the second center axis.3. The injector of claim 1 , wherein the second center axis is oriented at an angle) with respect to the first center axis.4. The injector of claim 1 , wherein the second center axis intersects the first center axis within the through opening.5. The injector of claim 1 , wherein the preliminary stage is situated behind the injection hole in the flow direction through the through opening.6. The injector of claim 1 , wherein the injection hole and/or the preliminary stage has a cylindrical claim 1 , divergent claim 1 , or convergent flow channel.7. The injector of claim 1 , wherein the length of the injection hole in the flow direction is smaller than the length of the preliminary stage.8. The injector of claim 1 , wherein an area ratio of the smallest area of the injection hole through which flow passes to the smallest area of the preliminary stage through which flow passes is 1:1.3 to 1:12.9. The injector of claim 1 , wherein the center of mass of a jet is situated at the end of the injection ...

Fuel Additive Compositions, and Method of Use Thereof

The present invention relates to a fuel additive composition for controlling formation of deposits and for reducing already formed deposits formed in a fuel injection system and engine, or in an internal combustion engine, wherein the fuel additive composition comprises oxide derivative of (a) iso-borneol or (b) borneol, and to a method of use thereof. In one embodiment, the present invention relates to a fuel additive composition for controlling formation of deposits and for reducing already formed deposits formed in a fuel injection system and engine, or in an internal combustion engine, wherein the fuel additive composition comprises (a) iso-borneol or (b) borneol, and to a method of use thereof. In one embodiment, the present invention relates to a fuel additive composition for controlling formation of deposits and for reducing already formed deposits formed in a fuel injection system and engine, or in an internal combustion engine, wherein the fuel additive composition comprises a mixture of oxirane or an oxide compound with (a) iso-borneol or (b) borneol, and to a method of use thereof. In one embodiment, the present invention relates to a composition comprising a fuel and the fuel additive composition of the present invention.

Nozzle Body and Fuel Injection Valve

The present disclosure relates to a nozzle body for a fuel injection valve, the nozzle body including a cavity and an injection channel for dispensing fuel from the cavity. The injection channel includes a first section and a second section downstream of the first section, the first and second sections having a common interface. The first section extends from a fuel inlet opening to a second opening disposed at the common interface. The cross-sectional area of the first section monotonically decreases from the fuel inlet opening to the common interface. The cross-sectional area of the second section monotonically increases from the common interface to the fuel outlet opening.

Nozzle Head and Fluid Injection Valve

The invention relates to a nozzle head and to a fluid injection valve, in particular to a motor vehicle injection valve. A nozzle head for atomizing a fluid for a fluid injection valve with a valve body, through which flow can pass, may include a longitudinal axis and a nozzle perforated disk having a front surface and an opposite inner surface. The nozzle perforated disk may comprise at least one nozzle hole channel completely penetrating the nozzle perforated disk in the direction of the longitudinal axis and including includes an entry surface at a first channel end and an outlet surface at a second channel end wherein the entry surface is formed on the inner surface of the nozzle perforated disk. A nozzle hole projection of the nozzle hole channel has a channel wall with a wall height (h) extending away from the inner surface and is configured over a circumference of the nozzle hole projection so that the second channel end corresponds to a channel wall end of the channel wall configured so as to face away from the front surface.

COMBUSTOR WITH FLOW GUIDE IN DOUBLE PIPE TYPE LINER, AND GAS TURBINE HAVING SAME

A combustor includes a flow guide installed in an air channel to simultaneously implement collision cooling and convection cooling of a combustor liner and a transition piece. The air channel is formed by an inner casing and an outer casing which are spaced apart from each other by a predetermined distance, through which combustion air is introduced to the combustor in order to produce a fuel-air mixture. The flow guide is attached to an inner surface of the outer casing and extending a predetermined length towards the inner casing so as to guide the combustion air flowing through the air channel toward a surface of the inner casing. The flow guide includes a channel inlet formed on an upstream side; a channel outlet formed on a lower surface facing the inner casing; and a guide channel communicating with each of the channel inlet and the channel outlet. 1. A combustor comprising:an air channel formed by an inner casing and an outer casing which are spaced apart from each other by a predetermined distance, through which combustion air is introduced to the combustor in order to produce a fuel-air mixture; anda flow guide attached to an inner surface of the outer casing and extending a predetermined length towards the inner casing so as to guide the combustion air flowing through the air channel toward a surface of the inner casing.2. The combustor of claim 1 , wherein the flow guide includes:a channel inlet formed so as to face in a direction of the combustion air flowing through the air channel;a channel outlet formed on a lower surface of the glow guide facing the inner casing; anda guide channel communicating with each of the channel inlet and the channel outlet.3. The combustor of claim 2 , wherein the guide channel has a curved shape with a predetermined radius of curvature connecting the channel inlet and the channel outlet with each other.4. The combustor of claim 2 , wherein the channel outlet consists of two or more channel outlets respectively communicating ...

COMBUSTOR WITH FUEL INJECTION PEG, AND GAS TURBINE HAVING SAME

A combustor includes a nozzle casing; a head end plate coupled to one end of the nozzle casing and having a plurality of supply holes through which fuel and air are respectively supplied; a nozzle assembly provided inside the nozzle casing and having a plurality of nozzles fixed to the nozzle end plate to receive the fuel and air from the supply holes and a nozzle cap having a plurality of through-holes surrounding the nozzles; and a plurality of fuel pegs disposed at predetermined intervals along an inner circumferential surface of the nozzle casing to inject the fuel into an air channel between the nozzles and the nozzle cap. The fuel peg includes a support mounted on an inner surface of the nozzle casing; and an extension extending a predetermined length inside an air channel and having a fuel injection hole formed on one side. 1. A combustor comprising:a nozzle casing;a head end plate coupled to one end of the nozzle casing and having a plurality of supply holes through which fuel and air are respectively supplied;a nozzle assembly provided inside the nozzle casing and having a plurality of nozzles fixed to the nozzle end plate to receive the fuel and air from the supply holes and a nozzle cap having a plurality of through-holes surrounding the nozzles; anda plurality of fuel pegs mounted inside the nozzle casing and disposed at predetermined intervals along an inner circumferential surface of the nozzle casing to inject the fuel into an air channel between the nozzles and the nozzle cap.2. The combustor of claim 1 , wherein the fuel peg includes:a support part mounted on an inner surface of the nozzle casing and having a planar disk-shaped structure; andan extension part extending a predetermined length inside an air channel from the support part and including one side in which a fuel injection hole is formed.3. The combustor of claim 1 , wherein the fuel peg has a cross-sectional structure formed as either one of an oval or airfoil structure curved in a ...

Nozzle Assembly and Fuel Injection Valve for a Combustion Engine

The present disclosure generally relates to nozzles for a valve and, more specifically, to a fuel injection valve for a combustion engine. In some embodiments, a nozzle assembly for a fuel injection valve for a combustion engine may include: a valve body with a central longitudinal axis; a valve cavity within the valve body; a nozzle tip body comprising a protrusion limiting a free volume of the valve cavity; and at least one nozzle aperture out from the valve cavity through the protrusion. The protrusion may extend from an end surface of the nozzle tip body in an extending direction parallel to a longitudinal axis of the nozzle tip body away from the valve cavity and comprise a first section adjacent to the end surface, the first section having a cylindrical outer surface, and a second section adjacent to the first section, the second section having an outer surface of decreasing diameter in the course away from the end surface along the extending direction. 1. A nozzle assembly for a fuel injection valve for a combustion engine , the nozzle assembly comprising:a valve body with a central longitudinal axis;a valve cavity within the valve body; anda nozzle tip body comprising a protrusion limiting a free volume of the valve cavity;wherein the protrusion extends from an end surface of the nozzle tip body in an extending direction parallel to a longitudinal axis of the nozzle tip body away from the valve cavity; andthe protrusion comprises a first section adjacent to the end surface, the first section having a cylindrical outer surface, and a second section adjacent to the first section, the second section having an outer surface of decreasing diameter in the course away from the end surface along the extending direction; andat least one nozzle aperture out from the valve cavity through the protrusion.2. A nozzle assembly according to claim 1 , wherein the second section comprises a conical outer surface.3. A nozzle assembly according to claim 2 , wherein a cone angle ...

Control method and control device for internal combustion engine

A control method for internal combustion engine with a fuel injection valve configured to directly inject fuel into a cylinder and an ignition plug configured to directly spark-ignite the fuel injected from the fuel injection valve includes comparing an actual behavior, which is an actual changing behavior of an engine revolution speed at an engine start, to a reference behavior set in advance, and switching from stratified combustion in which a fuel spray injected from the fuel injection valve and staying around the ignition plug is directly spark-ignited to homogeneous combustion in which a homogeneous air-fuel mixture is formed in a combustion chamber and the fuel is burned and increasing a mechanical compression ratio of the internal combustion engine as compared to the case where the actual behavior and the reference behavior match if the actual behavior is different from the reference behavior.

Polyolefin-derived dispersants

Ethylene-C 3 -C 10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C 3 -C 10 alpha-olefin-derived units. The C 3 -C 10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C 3 -C 10 alpha-olefin-derived units may be propylene-derived units.

Diesel fuel composition

A diesel fuel composition comprises a major amount of a diesel fuel and a minor amount of the reaction product between a hydrocarbyl-substituted succinic acid or anhydride and hydrazine. At least 25%, preferably at least 50%, most preferably at least 80% by weight of the reaction product has a molecular weight which is more than 2 times, preferably more than 2.5 times the average molecular weight of the hydrocarbyl group of the hydrocarbyl-substituted succinic acid or anhydride.

폴리올레핀-유도된 분산제

에틸렌-C 3 -C 10 알파 올레핀 공중합체, 분산제, 및 분산제를 포함하는 윤활유/연료 조성물, 및 관련 방법이 본원에 전반적으로 기재된다. 상기 공중합체는 에틸렌-유도 단위 및 C 3 -C 10 알파-올레핀-유도 단위를 포함할 수 있다. C 3 -C 10 알파-올레핀-유도 단위는 3 내지 10개의 탄소수를 가질 수 있다. 예를 들어, C 3 -C 10 알파-올레핀-유도 단위는 프로필렌-유도 단위일 수 있다. 상기 분산제는 낮은 금속 및/또는 불소 함량을 갖는 공중합체로부터 제조될 수 있다.

Polyolefin-derived dispersants

Ethylene-C 3 -C 10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C 3 -C 10 alpha-olefin-derived units. The C 3 -C 10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C 3 -C 10 alpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents.

Polyolefin-derived dispersants

Ethylene-C3-C10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C3-C10 alpha-olefin-derived units. The C3-C10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C3-C10 alpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents.

Polyolefin-derived dispersants

Ethylene-C 3 -C 10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C 3 -C 10 alpha-olefin-derived units. The C 3 -C 10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C 3 -C 10 alpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents.

Fuel additive composition and its usage

Engine system, motor vehicle and method of engine operation

FIELD: engines and pumps. SUBSTANCE: engine system (5) contains the engine (20) with direct injection and the electronic controller (40). The engine (20) comprises a number of cylinders (11, 12, 13), each of which comprises a combustion chamber (30), each of which is protruded with a nozzle tip portion of the fuel injector (60). The tip of the fuel injector is coated with a catalytic material. The controller (40) is configured to control the operation of the engine (20) in the heating operation mode, if the tip portion of the fuel injector (60) is to be heated. By heating the nozzle portion of the fuel injector (60), the deposit is removed, which would otherwise accumulate on it. Various methods for heating the tip of the fuel injector (60) are proposed, comprising the steps of providing the engine (20) with a reduced number of cylinders (11, 12, 13) and changing one or both of the setting of the fuel injection timing and the amount of fuel injected and setting the ignition timing to increase the combustion temperature. EFFECT: creation of a system of a direct injection engine and a method of operating such an engine system that provides for the efficient use of such a catalytic material for all workloads. 25 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02D 35/02 F02D 41/04 F02M 53/06 F02M 61/16 F02M 69/04 (11) (13) 2 631 753 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2013123001, 20.05.2013 (24) Дата начала отсчета срока действия патента: 20.05.2013 Дата регистрации: (73) Патентообладатель(и): ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 21.05.2012 GB 1208936.3 (56) Список документов, цитированных в отчете о поиске: JP S5941662 A, 07.03.1984. US 2007227492 A1, 04.10.2007. WO 02055851 A1, 18.07.2002. SU 909265 A1, 28.02.1982. (45) Опубликовано: 26.09.2017 Бюл. № 27 2 6 3 1 7 5 3 R U (54) СИСТЕМА ДВИГАТЕЛЯ, ...

Method for operating applied-ignition internal combustion engine with direct injection

本发明公开一种运行具有直接喷射的发动机的方法。在一个实例中，一种用于运行具有至少一个汽缸和直接喷射的施加点火内燃发动机的方法，该方法包括，至少局部地升高至少一个汽缸的喷射装置在催化涂层区域中的部件温度，以便开始并协助焦化残余物的氧化。因此，即使在部分载荷运行下也可以减少焦化残余物的沉积物。

Fuel pump

본 발명은 펌프 실린더(11) 내에 움직일 수 있게 지지된 펌프 피스톤(12)을 구비한 연료 펌프, 특히 커먼 레일 연료 시스템의 고압 연료 펌프에 관한 것이다. 본 발명에 따라 상기 펌프 피스톤(12)은 공동부(14)를 가지며, 상기 공동부를 통해 상기 펌프 피스톤(12)이 내부로부터 냉각될 수 있다. The invention relates to a fuel pump with a pump piston 12 movably supported in a pump cylinder 11, in particular a high pressure fuel pump of a common rail fuel system. According to the invention the pump piston 12 has a cavity 14, through which the pump piston 12 can be cooled from the inside. 펌프 실린더, 펌프 피스톤, 공동부. Pump cylinder, pump piston, cavity.

Fuel injection valve

본 발명은 연료 분사 밸브(1), 특히 연소실 내로 연료를 직접 분사하기 위한 고압 분사 밸브에 관한 것이며, 상기 밸브는 연소실 측 하우징 단부면(12)을 가진 하우징(2), 액추에이터(3), 상기 액추에이터(3)에 의해 작동 가능하며 위치에 따라 배출구(5)를 폐쇄 또는 개방하는 밸브 폐쇄 바디(4), 연료용 상기 하우징 단부면(12) 내의 적어도 하나의 배출구(5), 및 연소실 측 하우징 단부면(12)에서 상기 배출구(5) 둘레에 연소실 측으로 형성된 링(15)을 포함한다. The present invention relates to a fuel injection valve (1), in particular a high pressure injection valve for injecting fuel directly into a combustion chamber, said valve comprising a housing (2), an actuator (3), said housing with a housing end surface (12) on the combustion chamber side. A valve closing body 4 operable by the actuator 3 to close or open the outlet 5 depending on the position, at least one outlet 5 in the housing end face 12 for fuel, and a housing on the combustion chamber side A ring 15 formed on the end face 12 around the outlet 5 is formed toward the combustion chamber.

Method and use for the prevention of fuel injector deposits

实质上消除或减少在使用包含较少量含金属物质的柴油进行操作的柴油机中出现喷油器沉积物的方法，所述方法包括向所述柴油中加入烃基－取代琥珀酸或酸酐与肼的反应产物，其中所述柴油机装配具有多个喷孔的喷油器，每个喷孔具有进口和出口，和其中所述喷油器具有一个或多个以下特征：(i)渐变而使得所述喷孔的进口直径大于出口直径的喷孔；(ii)具有0.10mm或更小的出口直径的喷孔；(iii)所述进口的内缘是倒圆的喷孔；(iv)6个或更多个喷孔；(v)超过250℃的操作尖端温度。另外描述了所述反应产物用于实质上消除或减少出现喷油器沉积物的用途和制备柴油清洁剂的方法。

DISPERSANTS BASED ON POLYOLEFIN DERIVATIVES

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 121 910 A (51) МПК C10M 171/00 (2006.01) C10L 1/16 (2006.01) C10L 1/238 (2006.01) C10L 10/14 (2006.01) C08F 210/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019121910, 12.12.2017 (71) Заявитель(и): ЭФТОН КЕМИКАЛ КОРПОРЕЙШН (US) Приоритет(ы): (30) Конвенционный приоритет: 13.12.2016 US 15/377,788 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.07.2019 R U (43) Дата публикации заявки: 15.01.2021 Бюл. № 2 (72) Автор(ы): КАИН, Натаниэль (US), ЛОПЕР, Джон (US), КАННИНГХЭМ, Лоуренс (US), РУС, Джозеф У. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/111846 (21.06.2018) R U (54) ДИСПЕРГАТОРЫ НА ОСНОВЕ ПРОИЗВОДНЫХ ПОЛИОЛЕФИНА (57) Формула изобретения 1. Диспергатор, полученный способом, включающим функционализацию сополимера, полученного из этилена и пропилена, причем сополимер имеет среднечисловую молекулярную массу менее чем 4000 г/ моль, как измерено с помощью ГПХ; при этом по меньшей мере 30% и менее чем 65% от общего количества звеньев в сополимере являются звеньями производных этилена; при этом 70% мол. или более сополимера имеет углерод-углеродную двойную связь в концевом мономерном звене, и по меньшей мере 70% мол. концевых мономерных звеньев, которые имеют углерод-углеродную двойную связь, имеют концевую группу, выбранную из винилиденовой группы и тризамещенного изомера винилиденовой группы, причем винилиденовая группа и тризамещенный изомер винилиденовой группы сополимера имеют одну или более из следующих структурных формул (А)-(В) и Стр.: 1 A 2 0 1 9 1 2 1 9 1 0 A Адрес для переписки: 101000, ул. Мясницкая, д. 13, стр. 5, Москва, Россия, ООО "Союзпатент" 2 0 1 9 1 2 1 9 1 0 US 2017/065767 (12.12.2017) где R представляет метильную группу, а обозначает связь, присоединенную к оставшейся части сополимера; при этом сополимер имеет значение средней длины этиленовой последовательности nc2, как определено с помощью 13С ЯМР- ...

Fuel-injection valve

本发明涉及燃料喷射阀(5)、特别是直接伸入到内燃机燃烧室中的燃料喷射阀,具有一个燃料入口(7);一个可被激励的操作元件(10,11,19),通过它可使一个阀关闭元件(28)移动;具有一个固定的阀座(27),该阀关闭元件(28)与该阀座(27)配合作用用于打开和关闭阀;并且具有一个构造在一个下游侧阀端部(8)中的燃料出口,其中,该燃料出口由至少一个设置在阀座(27)下游的排出口(32,90)构成,具有至少一个排出口(32)的阀座件(26)至少在排出口(32)的出口区域(55)中在其下游侧端面(54)上具有一个涂层,它阻止在该区域中的焦化。

Polyolefin-derived dispersant

Aftertreatment injector anti-fouling device

Control method and apparatus for direct injection internal combustion engine

실린더 내에 연료를 직접 분사하는 직접 분사식 내연 기관을 제어하는 제어 방법은 연료 분사 밸브 선단에 연료가 부착되는 것에 기인하는 PN의 증대를 억제하는 것을 목적으로 하고, 연료 분사 밸브의 분사 구멍을 통과할 때의 연료 온도가, 연료 분사 밸브 선단으로의 연료 부착량이 증대되는 온도에 도달하기 전에, 연료를 냉각한다. A control method for controlling a direct injection type internal combustion engine that directly injects fuel into a cylinder aims at suppressing the increase of PN due to the attachment of fuel to the tip of the fuel injection valve and, when passing through the injection hole of the fuel injection valve The fuel is cooled before the temperature of the fuel reaches the temperature at which the amount of fuel adhering to the tip of the fuel injection valve increases.

Fuel injection valve

Fuel injection valve for internal-combustion engine, has volume between front surface of valve closing section and front surface, and coating with non-stick effect for combustion residues provided at front surfaces that limit volume

The valve has an excitable actuator operating a valve closing section (28) that forms a sealing seat with a valve seat surface (27) at a valve seat unit (26). Discharge openings (32) are designed downstream of the surface. A volume (30) lies between a front surface (52) of the section and a front surface (53). A coating (50) with non-stick effect for combustion residues is provided at the front surfaces that limit the volume.

Fuel injector

Das erfindungsgemäße Brennstoffeinspritzventil zeichnet sich dadurch aus, dass eine Rußbildung und Verkokung im Bereich der in einem Ventilsitzkörper (5) eingebrachten Abspritzöffnungen (7) reduziert ist. Das Brennstoffeinspritzventil (1) umfasst einen erregbaren Aktuator zur Betätigung eines Ventilschließkörpers, der zusammen mit einer an dem Ventilsitzkörper (5) ausgebildeten Ventilsitzfläche (6) einen Dichtsitz bildet, und Abspritzöffnungen (7), die stromabwärts der Ventilsitzfläche (6) ausgebildet sind, wobei die Abspritzöffnungen (7) in einem kuppenartig in Abspritzrichtung nach außen stehenden Mittenbereich (44) des Ventilsitzkörpers (5) eingebracht sind. Der kuppenartig axial hervorstehende Mittenbereich (44) des Ventilsitzkörpers (5) endet radial außerhalb der Mündungsbereiche aller Abspritzöffnungen (7) und ist von einem in axialer Richtung abstehenden, dünnwandigen Hülsenelement (45) zumindest teilweise radial umgeben, wobei das Hülsenelement (45) an einem ringförmig verlaufenden Absatz (46) des Ventilsitzkörpers (5) montiert ist.Das Brennstoffeinspritzventil eignet sich besonders zum direkten Einspritzen von Brennstoff in einen Brennraum einer gemischverdichtenden fremdgezündeten Brennkraftmaschine.

Control method and control device of internal combustion engine with direct injection

FIELD: engines and pumps. SUBSTANCE: invention relates to control of internal combustion engine with direct fuel injection. Task of control method of internal combustion engine (1) with direct injection, which directly injects fuel into cylinder (2), is to reduce increase in solid particles caused by fuel sticking to far end of fuel injection valve. Control method cools fuel before fuel temperature when fuel passes through fuel injection opening (5A) on fuel injection valve reaches temperature, at which volume of fuel stuck to far end of fuel injection valve increases. EFFECT: reduced amount of solid particles in an internal combustion engine with direct injection. 2 cl, 21 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 685 757 C1 (51) МПК F02M 61/16 (2006.01) F02D 45/00 (2006.01) F02M 53/00 (2006.01) F02M 55/02 (2006.01) F01P 3/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01P 3/02 (2019.02); F01P 3/16 (2019.02); F01P 7/16 (2019.02); F02D 41/3818 (2019.02); F02D 41/3845 (2019.02); F02F 1/10 (2019.02) (21) (22) Заявка: 2018129377, 12.02.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 12.02.2016 (56) Список документов, цитированных в отчете о поиске: JP 2012197706 A, 18.10.2012. JP (45) Опубликовано: 23.04.2019 Бюл. № 12 2002098022 A, 05.04.2002. RU 2490510 C1, 20.08.2013. RU 156186 U1, 10.11.2015. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.09.2018 (86) Заявка PCT: JP 2016/054128 (12.02.2016) C 1 (87) Публикация заявки PCT: 2 6 8 5 7 5 7 C 1 WO 2017/138144 (17.08.2017) R U 2 6 8 5 7 5 7 (73) Патентообладатель(и): НИССАН МОТОР КО., ЛТД. (JP), РЕНО С.А.С (FR) 23.04.2019 R U 12.02.2016 (72) Автор(ы): ИМАОКА Йосихиро (JP), ИНОУЕ Такао (JP), ЦУЮКИ Такеси (JP) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ УПРАВЛЕНИЯ И УСТРОЙСТВО УПРАВЛЕНИЯ ...

Improved injector arrangement for diesel engines using slurry or emulsified fuel

本发明涉及用于柴油型发动机的燃料喷射装置，该柴油型发动机构造成使用含碳水性浆料燃料。所述燃料喷射装置包括：喷射器喷嘴，其用于将燃料喷射到燃烧室中；泵室，其容纳燃料泵送元件，燃料泵送元件用于生成沿着泵送元件和喷射器喷嘴之间的喷射路径达到喷射器喷嘴的加压燃料流；以及止回阀，其连接到燃料供应，用于经由止回阀出口调节燃料并向喷射路径供应燃料。紧接止回阀出口下游的区域界定了出口区域，并且止回阀被布置成将出口区域暴露于加压燃料流，以促进在燃料在泵送元件和喷射器喷嘴之间流动期间对出口区域的冲洗。

System and method for flashover operation control

提供了一种控制发动机系统的跳火汽缸停用系统的方法。该方法包括控制器停用发动机系统的汽缸以使发动机系统在跳火模式下操作。该方法还包括确定与汽缸相关联的喷射器尖端喷嘴的温度，并将喷射器尖端喷嘴的温度与阈值温度进行比较。响应于确定喷射器尖端喷嘴的温度大于阈值温度，通过控制器启用汽缸。

Method of forming a thermal protection device

Procédé de formage d’un dispositif de protection thermique La présente invention concerne un procédé de formage d’un dispositif de protection thermique (5) d’un injecteur à carburant (4), le dispositif de protection thermique (5) étant formé à partir d’une pièce primaire, caractérisé en ce qu’il comprend : une étape de préformage de la pièce primaire pour former une pièce intermédiaire,une étape d’insertion de la pièce intermédiaire au sein d’une culasse (3) d’un moteur à combustion interne (1) destiné à recevoir l’injecteur à carburant (4),une étape de déformation de la pièce intermédiaire pour former le dispositif de protection thermique (5), la déformation étant effectuée par injection d’un liquide sous pression au sein de la pièce intermédiaire (7). L’invention couvre également un dispositif de protection thermique (5) mis en œuvre par le procédé de formage. (figure 1) The present invention relates to a method of forming a thermal protection device (5) of a fuel injector (4), the thermal protection device (5) being formed from of a primary part, characterized in that it comprises: a step of preforming the primary part to form an intermediate part,a step of inserting the intermediate part into a cylinder head (3) of an engine combustion engine (1) intended to receive the fuel injector (4),a step of deforming the intermediate part to form the thermal protection device (5), the deformation being carried out by injecting a pressurized liquid into the within the intermediate piece (7). The invention also covers a thermal protection device (5) implemented by the forming process. (figure 1)

Method for detecting a change in state of a fuel injector

Die Erfindung betrifft ein Verfahren zum Erkennen einer Zustandsänderung eines Kraftstoffinjektors einer Brennkraftmaschine, bei der mittels des Kraftstoffinjektors Kraftstoff aus einem Hochdruckspeicher in einen Brennraum eingespritzt wird, wobei ein für eine statische Durchflussrate von Kraftstoff durch den Kraftstoffinjektor repräsentativer Wert (Rstat,2) ermittelt wird, wobei, wenn der repräsentative Wert (Rstat,2) um mehr als einen ersten Schwellwert (∆R1) von einem Vergleichswert stat) abweicht, auf eine Zustandsänderung des Kraftstoffinjektors geschlossen wird. The invention relates to a method for detecting a change in state of a fuel injector of an internal combustion engine in which fuel is injected from a high-pressure accumulator into a combustion chamber by means of the fuel injector, wherein a value representative of a static flow rate of fuel through the fuel injector (Rstat, 2) is determined. wherein, when the representative value (Rstat, 2) deviates by more than a first threshold value (ΔR1) from a comparison value stat), a state change of the fuel injector is concluded.

Reagent injection device for use in internal combustion engine, has thermal protection ring comprising middle body between support face and end including orifice, where body forms heat conducting interface between tip and cooling support

The device has an injector (2) connected to a reagent source and comprising a free end forming a nozzle tip (4). A reagent injection channel (20) emerges in a gas sending line through an end of the tip. A monoblock thermal protection ring (3) of the tip supports on a shoulder (E) of the injector on one side by a support face and provided with an orifice (32) on another side for passing a jet of reagent. The ring has a middle body (C) between the support face and an end including an orifice (32), where the body forms a thermal conducting interface between the tip and a cooling support.

Method of forming a thermal protection device

Procédé de formage d’un dispositif de protection thermique La présente invention concerne un procédé de formage d’un dispositif de protection thermique (5) d’un injecteur à carburant (4), le dispositif de protection thermique (5) étant formé à partir d’une pièce primaire, caractérisé en ce qu’il comprend : une étape de préformage de la pièce primaire pour former une pièce intermédiaire,une étape d’insertion de la pièce intermédiaire au sein d’une culasse (3) d’un moteur à combustion interne (1) destiné à recevoir l’injecteur à carburant (4),une étape de déformation de la pièce intermédiaire pour former le dispositif de protection thermique (5), la déformation étant effectuée par injection d’un liquide sous pression au sein de la pièce intermédiaire (7). L’invention couvre également un dispositif de protection thermique (5) mis en œuvre par le procédé de formage. (figure 1)

Inhibiting deposition, on a metallic surface, of products e.g. gum, obtained from thermal degradation of hydrocarbons derived from hydrocarbon fluid, comprises forming hydrogenated metallic oxide coating layer on metallic surface

Method for inhibiting deposition, on a metallic surface, products e.g. gum, obtained from the thermal degradation of hydrocarbons derived from a hydrocarbon fluid mixed with oxygen and/or sulfur, comprises forming at least a hydrogenated metallic oxide coating layer (a) on the metallic surface, in a distributed electron cyclotron resonance plasma reactor. Method for inhibiting deposition, on a metallic surface, of products e.g. gum, obtained from the thermal degradation of hydrocarbons derived from a hydrocarbon fluid mixed with oxygen and/or sulfur, comprises forming at least a hydrogenated metallic oxide coating layer of formula (M zO(x -y)H y) (a) on the metallic surface, in a distributed electron cyclotron resonance plasma reactor. M : metal valency of v, z or x; v, z : 2x; and y : 0-0.2. An independent claim is included for a metallic part, which is coated on a portion of surface by a hydrogenated metallic oxide coating layer.

Device for estimating amount of combustion product generation in internal combustion engine, device for estimating amount of deposit detachment, device for estimating amount of deposit accumulation, and device for controlling fuel injection

This invention relates to a deposit remove amount estimation device for estimating inlet and outlet deposit remove amounts by calculating an inlet deposit remove amount which is an amount of a removed combustion product among the combustion product accumulating on an injection hole inlet area and an outlet deposit remove amount which is an amount of a removed combustion product among the combustion product accumulating on an injection hole outlet area. In this invention, the inlet deposit remove amount is calculated on the basis of the inlet deposit accumulation amount which is an amount of the combustion product accumulating on the injection hole inlet area and the outlet deposit remove amount is calculated on the basis of the outlet deposit accumulation amount which is an amount of the combustion product accumulating on the injection hole outlet area.

Coating for a fuel injector seat

A fuel injector seat for a fuel injector assembly, and more particularly for a high-pressure fuel injector assembly, having a number of features for minimizing the formation of combustion chamber deposits on the seat, providing a selected finish on a needle-sealing portion, and reducing sac volume. These features include positioning a transition portion between the needle-sealing portion and an orifice portion, positioning a sharp edge at the outlet of the orifice portion, and applying a coating to certain surfaces of the seat. This invention also relates to a fuel injector seat and method of manufacturing the fuel injector seat, and a method of evaluating when the transition portion is required between the orifice and needle-sealing portions for a particular seat arrangement.

Fuel injection valve

The valve (1) has a housing (2) with a borehole (3) conveyable through a fuel, and a closure unit (4) actuatable by an actuator and arranged in the borehole. The closure unit has a closure body (5) at a side of the housing, where the closure body has a flow tearing edge (6) for the injected fuel. The borehole is openable out from the housing opposite to a surrounding (7) of the valve by the closure unit during changing of position. The closure body has a roughness (8) on a side in an area of the edge, where the side faces the surrounding.

Nozzle for a fuel injector

Nozzle body 14 of a fuel injector 10 adapted to receive a needle valve member (figure 4, 20) in a sliding fit in a bore (figure 4, 18) is surrounded by a peripheral wall (figure 4, 16) that has a wide upper cylindrical portion 36 and a narrow lower cylindrical portion 40 connected by a transverse shoulder face 38. The lower portion extends from the shoulder face to a spray extremity 42 which tapers and is adapted to spray fuel via spray holes 32 characterized in that the nozzle body further comprises a heat shield 46 arranged to protect the lower cylindrical portion. The heat shield may comprise a tubular sleeve 48 preferably fixed to the body which may have circular lower edge 56 and may also have a cup-like end cap (figure 3, 66) which may be integral with the sleeve. Space(s) (figure 4, S1, S2) may be defined between the sleeve and peripheral wall which can include a vacuum or thermally insulated material.

METHOD FOR INHIBITING THE DEPOSITION ON A METAL SURFACE OF THERMAL DEGRADATION PRODUCTS OF HYDROCARBONS, AND METAL PIECE SUCH AS AN INJECTOR, SO OBTAINED

Procédé d'inhibition du dépôt sur une surface métallique de produits issus de la dégradation thermique d'hydrocarbures, selon lequel on réalise le dépôt, sur ladite surface, d'un revêtement polymère à base de fluorure de polyvinylidène, caractérisé en ce que :- ledit revêtement est constitué par un mélange d'un homopolymère de fluorure de polyvinylidène, ou d'un copolymère de fluorure de polyvinylidène les autres composants étant présents à raison de 1 à 20% en poids du polymère, et d'un verre ;- ledit revêtement est obtenu à partir d'un mélange de particules de polymère ayant un index de débit de 10 à 300 grammes par 10 minutes déterminé selon la norme ASTM D1238 condition J et de particules de verre sphériques ou ovoïdes de taille comprise entre 1 et 300 mum ;- le rapport entre les pourcentages massiques du verre et du polymère est compris entre 0,05 et 0,50 ;- le revêtement est obtenu par un procédé à lit fluidisé, ou par un procédé électrostatique, ou par air comprimé, ou par vaporisation de flamme, ou par lit fluide électrostatique.Pièce métallique ainsi revêtue, telle qu'un injecteur pour moteur. A method for inhibiting the deposition on a metal surface of products resulting from the thermal degradation of hydrocarbons, according to which the deposition is carried out on said surface of a polyvinylidene fluoride-based polymer coating, characterized in that: said coating is constituted by a mixture of a homopolymer of polyvinylidene fluoride, or a copolymer of polyvinylidene fluoride, the other components being present in a proportion of 1 to 20% by weight of the polymer, and a glass; coating is obtained from a mixture of polymer particles having a flow index of 10 to 300 grams per 10 minutes determined according to ASTM D1238 condition J and spherical or ovoid glass particles of size between 1 and 300 mum the ratio between the mass percentages of the glass and the polymer is between 0.05 and 0.50; the coating is obtained by a ...

Fuel additive compositions and their application method

Настоящее изобретение относится к композиции топливной присадки и ее применению. Композиция топливной присадки для предотвращения образования отложений и устранения уже образовавшихся отложений, присутствующих в системе впрыска топлива и двигателе или в двигателе внутреннего сгорания, содержит оксидное производное (a) изоборнеола или (b) борнеола; при этом оксидное производное (a) изоборнеола или (b) борнеола представляет собой продукт реакции оксиранового соединения и изоборнеола или борнеола; при этом оксирановое соединение выбрано из группы, состоящей из (i) этиленоксида, (ii) пропиленоксида и (iii) бутиленоксида. Также раскрывается топливная композиция, содержащая топливо и указанную композицию топливной присадки, и способы предотвращения образования отложений и устранения уже образовавшихся отложений, и применения композиции топливной присадки для предотвращения образования отложений и для устранения уже образовавшихся отложений, присутствующих в системе впрыска топлива и двигателе или в двигателе внутреннего сгорания. Технический результат заключается в предотвращении образования отложений и устранении уже образовавшихся отложений, присутствующих в системе впрыска топлива и двигателе внутреннего сгорания. 4 н. и 1 з.п. ф-лы, 1 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 761 385 C1 (51) МПК C10L 10/04 (2006.01) C10L 1/185 (2006.01) C10L 1/198 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C10L 10/04 (2021.08); C10L 1/185 (2021.08); C10L 1/198 (2021.08) (21)(22) Заявка: 2020113098, 05.11.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ДОРФ КЕТАЛ КЕМИКАЛС ФЗетЕ (AE) Дата регистрации: 07.12.2021 Приоритет(ы): (30) Конвенционный приоритет: 17.11.2017 IN 201721041306 (45) Опубликовано: 07.12.2021 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.06.2020 (86) Заявка PCT: 2 7 6 1 3 8 5 R U (87) Публикация заявки PCT: WO 2019/097353 (23.05.2019) C 1 ...

A kind of anti-carbon deposition fuel injection equipment (FIE)

本发明公开了一种防积碳燃油喷射装置，包括：燃油喷射机构和氧化剂喷射机构；燃油喷射机构包括油管和燃油喷嘴组件；油管包括远离燃烧室一侧设置的进油段和靠近燃烧室一侧设置的喷射段；喷油嘴组件安装于喷射段远离进油段一侧的端部；依次流经进油段和高温端并经喷油嘴组件喷射出的燃油，经氧化剂喷射机构喷射出的氧化剂，以及高温烟气于混合管的混合通道混合后流向燃烧室；喷射段伸入混合通道；喷射段的侧壁设有用于流通冷却流体的通道。本发明通过冷却流体与油管进行热交换，进而实现油管的燃油通道的燃油的降温，以降低积碳的产生，进而减少燃油通道的积碳，改善了燃油喷射质量，避免燃油喷嘴组件被积碳所堵塞而影响发动机的工作性能。

Fuel injection device

FUEL INJECTION VALVE SEAT WITH A SHARP EDGE

Fuel injector seat with a sharp edge

A fuel injector seat (64) for a fuel injector assembly, and more particularly for a high-pressure fuel injector assembly, having a number of features for minimizing the formation of combustion chamber deposits on the seat (64), providing a selected finish on a needle-sealing portion, and reducing sac volume. These features include positioning a transition portion between the needle-sealing portion and an orifice portion, positioning a sharp edge (606) at the outlet of the orifice portion, and applying a coating to certain surfaces of the seat. This invention also relates to a fuel injector seat and method of manufacturing the fuel injector seat, and a method of evaluating when the transition portion is required between the orifice and needle-sealing portions for a particular seat arrangement.

Fuel injection valve

본 발명은 연료 분사 밸브(1), 특히 연소실 내로 연료를 직접 분사하기 위한 고압 분사 밸브에 관한 것이며, 상기 밸브는 연소실 측 하우징 단부면(12)을 가진 하우징(2), 액추에이터(3), 상기 액추에이터(3)에 의해 작동 가능하며 위치에 따라 배출구(5)를 폐쇄 또는 개방하는 밸브 폐쇄 바디(4), 연료용 상기 하우징 단부면(12) 내의 적어도 하나의 배출구(5), 및 연소실 측 하우징 단부면(12)에서 상기 배출구(5) 둘레에 연소실 측으로 형성된 링(15)을 포함한다.

METHOD OF INHIBITING DEPOSITION ON A METAL SURFACE OF PRODUCTS, SUCH AS GUMES, BY A COATING OF HYDROGEN OXIDE, AND METALLIC PART THUS COATED

Patent RU2019121910A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 121 910 A (51) МПК C10M 171/00 (2006.01) C10L 1/16 (2006.01) C10L 1/238 (2006.01) C10L 10/14 (2006.01) C08F 210/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019121910, 12.12.2017 (71) Заявитель(и): ЭФТОН КЕМИКАЛ КОРПОРЕЙШН (US) Приоритет(ы): (30) Конвенционный приоритет: 13.12.2016 US 15/377,788 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.07.2019 R U (43) Дата публикации заявки: 15.01.2021 Бюл. № 2 (72) Автор(ы): КАИН, Натаниэль (US), ЛОПЕР, Джон (US), КАННИНГХЭМ, Лоуренс (US), РУС, Джозеф У. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/111846 (21.06.2018) R U (54) ДИСПЕРГАТОРЫ НА ОСНОВЕ ПРОИЗВОДНЫХ ПОЛИОЛЕФИНА (57) Формула изобретения 1. Диспергатор, полученный способом, включающим функционализацию сополимера, полученного из этилена и пропилена, причем сополимер имеет среднечисловую молекулярную массу менее чем 4000 г/ моль, как измерено с помощью ГПХ; при этом по меньшей мере 30% и менее чем 65% от общего количества звеньев в сополимере являются звеньями производных этилена; при этом 70% мол. или более сополимера имеет углерод-углеродную двойную связь в концевом мономерном звене, и по меньшей мере 70% мол. концевых мономерных звеньев, которые имеют углерод-углеродную двойную связь, имеют концевую группу, выбранную из винилиденовой группы и тризамещенного изомера винилиденовой группы, причем винилиденовая группа и тризамещенный изомер винилиденовой группы сополимера имеют одну или более из следующих структурных формул (А)-(В) и Стр.: 1 A 2 0 1 9 1 2 1 9 1 0 A Адрес для переписки: 101000, ул. Мясницкая, д. 13, стр. 5, Москва, Россия, ООО "Союзпатент" 2 0 1 9 1 2 1 9 1 0 US 2017/065767 (12.12.2017) где R представляет метильную группу, а обозначает связь, присоединенную к оставшейся части сополимера; при этом сополимер имеет значение средней длины этиленовой последовательности nc2, как определено с помощью 13С ЯМР- ...

Valve assembly and fluid injector for a combustion engine

연소 기관을 위한 밸브 조립체 및 유체 인젝터 본 발명은 내연 기관용 유체 인젝터(1)를 위한 밸브 조립체(2)에 관한 것이다. 밸브 조립체(2)는 밸브 리세스(5), 중앙 종축(7) 및 중앙 종축(7)에 대한 제1 축단부 및 제2 축단부를 갖는 밸브 본체를 포함한다. 밸브 니들(11)은 중앙 종축(7)에 대해 밸브 리세스(5) 내부에서 축방향으로 이동가능하다. 밀봉 시트 영역(21)과 협력하여, 밸브 니들(11)은 그 폐쇄 위치에 적어도 하나의 유동 구멍(13)을 통한 유체 유동을 방지하고, 그렇지 않으면 이를 가능하게 한다. 또한, 인젝터(1)는 밸브 본체의 벽(9)의 내면의 일부를 형성하는 밀봉 시트 영역(21)에 인접한 색 체적 계단(23) 및 밸브 리세스(5)의 일단부로서 구성되고 밸브 본체의 벽(9)의 내면의 추가 부분에 의해 제한되는 색 체적(25)을 포함한다.

Fuel pump

Exhaust gas purification device in internal combustion engine

Catalytic coating to prevent carbon deposits on gasoline direct injector tips

A fuel injector ( 10 ) has an inlet ( 12 ), an outlet ( 14 ), and a passageway ( 16 ) providing a fuel flow conduit from the inlet to the outlet. A valve structure ( 22, 24 ) is movable in the passageway between first and second positions. A seat ( 26 ) is provided at the outlet and has at least one seat passage ( 28 ) in communication with the passageway. Movement of the valve structure between the first and second positions controls the flow of fuel through the seat passages. The seat includes an outer tip surface ( 30 ) through which the least one seat passage extends. A catalytic coating ( 32 ) is provided on at least a portion of the outer tip surface. The coating causes oxidation of fuel on the coating to occur at a temperature lower than if the coating was not provided.

A fuel injector for an internal combustion engine

一种内燃机用的燃料喷射器，至少包括壳体、阀座(21)、阀杆(16)、雾化器(5)、以及切除元件(27)。该雾化器具有中心孔(22)，多个喷嘴孔(31)自所述中心孔延伸穿过该雾化器的侧壁。该切除元件通过该阀杆上的轴承载且包括第一柱形段(28)，所述第一柱形段定位在该雾化器的所述中心孔中以在该阀杆处于关闭位置时关闭燃料进入到所述喷嘴孔的第一组进口中。在该阀杆处于打开位置，经由该切除元件的圆周和该雾化器的所述中心孔之间的通路，将燃料供给到至少所述喷嘴孔的第二组中。该切除元件具有第二柱形段(29)，第二柱形段用于在该阀杆处于所述关闭位置时关闭所述喷嘴孔的第二组进口。

Component, in particular of a fuel injection system, having a surface

Disclosed is a component, in particular of a fuel injection system, comprising a surface. According to the invention, in such a component, the constitution of a surface is changed in such a manner that the potential for adhesion and the effect of the adhesion of deposits are reduced. This is achieved in that the surface has a structure which counteracts the adhesion of a reactive medium, in particular of a fuel, of a biofuel, of an additive and/or of a fatty acid.

Fuel lubricated pump and common rail fuel system using the same

Ein Verfahren zum Betrieb eines Brennstoffsystems für einen verdichtungsgezündeten Motor weist auf, Biobrennstoff, der ein Teil einer Mischung sein kann, zu einem Einlass einer brennstoffgeschmierten Pumpe zu liefern. Zumindest ein Lager der Pumpe wird mit dem Biobrennstoff geschmiert. Die brennstoffgeschmierte Pumpe liefert Hochdruckbrennstoff zu einer Common-Rail. Eine Vielzahl von Brennstoffeinspritzvorrichtungen ist strömungsmittelmäßig mit der Common-Rail verbunden, und jede weist mindestens eine Düsenzumessöffnung auf, um den Biobrennstoff in den Brennraum des Motors einzuspritzen. Eine Verkokung bzw. Schmutzablagerung an der Düsenzumessöffnung wird zumindest teilweise dadurch eingeschränkt, dass eine spinodale Bronzelegierung im Lager der brennstoffgeschmierten Pumpe eingesetzt wird. One method of operating a fuel system for a compression ignition engine includes supplying biofuel, which may be part of a mixture, to an inlet of a fuel lubricated pump. At least one bearing of the pump is lubricated with the biofuel. The fuel lubricated pump delivers high pressure fuel to a common rail. A plurality of fuel injectors are fluidly connected to the common rail, and each has at least one nozzle orifice to inject the biofuel into the combustion chamber of the engine. Coking at the nozzle orifice is at least partially limited by the use of a spinodal bronze alloy in the bearing of the fuel lubricated pump.

Method for operating an injection valve of an internal combustion engine

Die Erfindung betrifft ein Verfahren zum Betreiben eines Einspritzventils einer Brennkraftmaschine, wobei die Dosierung der Kraftstoffmenge insbesondere durch eine Variation des Hubs der Düsennadel des Einspritzventils einstellbar ist. Derartige Verfahren und Einspritzventile sind im Stand der Technik grundsätzlich bekannt. Zur Vermeidung der Gefahr eines unvollständigen Schließens aufgrund von Verschmutzung (Gefahr eines Benzinschlags) bei Betriebszuständen der Brennkraftmaschine, bei denen über längere Zeit kein Vollhub der Düsennadel und damit auch keine ausreichende Spülung der Düse durchgeführt wird, wird erfindungsgemäß vorgeschlagen, eine Spülung der Düse mit Kraftstoff dann durchzuführen, wenn ein offen klemmender Betriebszustand der Düsennadel erkannt wurde.

Fuel injector

Die erfindungsgemäße Brennstoffeinspritzvorrichtung umfasst wenigstens ein Brennstoffeinspritzventil (1) und eine Aufnahmebohrung (20) in einem Zylinderkopf (9) für das Brennstoffeinspritzventil (1), wobei das Brennstoffeinspritzventil (1) ein Ventilgehäuse (22) aufweist, an dessen Mantelfläche eine Ringnut (17) vorgesehen ist, in der ein Dichtring (2) zur Abdichtung des Brennstoffeinspritzventils (1) gegenüber einer Wandung der Aufnahmebohrung (20) eingebracht ist. Zum thermischen Schutz des Dichtrings (2) vor aggressiven Brennraumgasen und deren mitgeführter Partikel ist von der ersten Ringnut (17) aus gesehen brennraumseitig am Ventilgehäuse (22) eine zweite offene, ohne Bauteil besetzte Ringnut (18) vorgesehen, durch die eine Umlenkung der Brennraumgasse wirksam ermöglicht wird.Die Brennstoffeinspritzvorrichtung eignet sich besonders zum direkten Einspritzen von Brennstoff in einen Brennraum einer gemischverdichtenden fremdgezündeten Brennkraftmaschine. The fuel injection device according to the invention comprises at least one fuel injection valve (1) and a receiving bore (20) in a cylinder head (9) for the fuel injection valve (1), the fuel injection valve (1) having a valve housing (22), on the lateral surface of which an annular groove (17) A sealing ring (2) for sealing the fuel injection valve (1) against a wall of the receiving bore (20) is provided. For thermal protection of the sealing ring (2) against aggressive combustion chamber gases and their entrained particles, a second open ring groove (18), without any component, is provided on the combustion chamber side of the valve housing (22), through the deflection of the combustion chamber lane The fuel injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing spark-ignition internal combustion engine.

Fuel injection control device for internal combustion engine

When fuel injection is carried out, an amount of deposit produced newly around a second injection hole is estimated on the basis of an amount of fuel injected from at least the first injection hole. The amount of produced deposit estimated every time the first fuel injection is carried out is integrated. When the integrated value of the amount of deposit reaches a set value, fuel injection in which the second injection hole is used is carried out to remove the deposit.

Apparatus and method for controlling a fuel injector under abnormal conditions

A control device ( 5 ) for an internal combustion engine including a fuel injection device ( 3 ) is provided. The fuel injection device ( 3 ) includes an injection hole ( 31 b, 31 c ), and is configured to inject fuel from the injection hole ( 31 b, 31 c ) into a combustion chamber ( 21 ). The control device ( 5 ) includes an actual injection amount output section ( 53 ), an injection amount deviation output section ( 51 a ), and an abnormality treatment direction section ( 51 a ). The injection amount deviation output section ( 51 a ) outputs a signal that indicates the deviation between an actual injection amount and a command fuel injection amount. The abnormality treatment direction section ( 51 a ) outputs a signal to enable treatment if the deviation exceeds a predetermined value.

Device for estimating amount of combustion product generation in internal combustion engine, device for estimating amount of deposit detachment, device for estimating amount of deposit accumulation, and device for controlling fuel injection

本发明涉及一种淀积物剥离量推断装置，其在具备燃料喷射阀（22）的内燃机（10）中，通过计算堆积在喷孔入口区域内的燃烧产物中剥离的燃烧产物的量即入口淀积物剥离量、和堆积在喷孔出口区域内的燃烧产物中剥离的燃烧产物的量即出口淀积物剥离量，从而对入口淀积物剥离量和出口淀积物剥离量进行推断。在本发明中，根据堆积在喷孔入口区域内的燃烧产物的量、即入口淀积物堆积量来计算入口淀积物剥离量，并根据堆积在喷孔出口区域内的燃烧产物的量、即出口淀积物堆积量来计算出口淀积物剥离量。

Injection valve for internal combustion engines

An injection valve for internal combustion engines is specified, which injection valve has a valve seat body (12), which delimits a valve chamber (13) and has a valve seat (14) and spray holes (21) and a central blind hole (24), and a valve member (16) which can be driven for the lifting movement and has a closing head (15) which, together with the valve seat (14), forms a sealing seat which lies upstream of the spray holes (21). In order to prevent a vacuum, which is formed in the blind hole (24) in the closing phase of the sealing seat, and an associated partial backflow of the fuel, the closing head (15) of the valve member (16) is provided, on its end side which faces the valve seat body (12), with a plunger (25) which protrudes from the closing head (15), has a shape which is adapted to the contour of the blind hole (24), and dips into the blind hole (24) during closing of the sealing seat.

Combustion product production amount estimation device, deposit separation amount estimation device, deposit accumulation amount estimation device, and fuel injection control device of internal combustion engine.

Valve assembly and fluid injector for a combustion engine

本发明涉及用于内燃发动机的流体喷射器(1)的阀门组件(2)。所述阀门组件(2)包括阀体，该阀体具有阀凹部(5)、中心纵向轴线(7)以及相对于所述中心纵向轴线(7)的第一轴向端和第二轴向端。阀针(11)能够在阀凹部(5)内相对于中心纵向轴线(7)轴向移动。阀针(11)在其关闭位置与密封座区域(21)协同地防止流体流过至少一个流动孔(13)，否则允许通过。此外，喷射器(1)包括囊体积台阶(23)和囊体积(25)，囊体积台阶(23)邻近密封座区域(21)且形成阀体的壁(9)的内表面的一部分，囊体积(25)设计为阀凹部(5)的一端且由阀体的壁(9)的内表面的另一部分限制。

Method for operating an injection valve of an internal combustion engine

The invention relates to a method for operating an injection valve of an internal combustion engine, whereby fuel dosage is adjusted especially by a variation of the stroke of the injector pin of the injection valve. Generic methods and injections valves are generally known from the prior art. The aim of the invention is to provide a method which makes it possible to avoid an incomplete closure of the valve due to soiling (danger of a damage caused by a gasoline-filled crankcase) at operating states of the internal combustion engine where no complete stroke of the injector pin occurs over a prolonged period of time and the nozzle is therefore not sufficiently scavenged. According to the invention, the nozzle is scavenged with fuel when an open jamming operating state of the injector pin is detected.

Method and system for fuel injector

本公开提供了“用于燃料喷射器的方法和系统”。提供了用于喷射器的方法和系统。在一个示例中，所述喷射器包括至少两个通道，其中所述通道中的每一个的出口与所述通道的对应入口不同地成形。

A method for identifying a state change of a fuel injector

본 발명은, 내연 기관의 연료 분사기의 상태 변경을 식별하기 위한 방법에 관한 것이며, 이 방법에서는 연료 분사기에 의해서 연료가 고압 어큐뮬레이터로부터 연소실 내로 분사되며, 이 경우에는 연료 분사기를 통과하는 연료의 정적인 유동률을 대표하는 값(R stat,2 )이 결정되며, 이때 대표 값(R stat,2 )이, 제1 임계 값(ΔR 1 )을 초과할만큼 비교 값( R stat )으로부터 벗어나면, 연료 분사기의 상태 변경이 추론된다.

Control method and control device of direct-injection type internal-combustion engine.

Un objeto de un método de control para controlar un motor de combustión interna de inyección directa que inyecta directamente combustible en un cilindro es reducir un aumento en el PN causado por la adhesión del combustible a un extremo distal de la válvula de inyección de combustible. El método de control enfría el combustible antes de que una temperatura del combustible cuando el combustible pasa a través de un orificio de inyección en una válvula de inyección de combustible alcance una temperatura en la cual aumenta una cantidad del combustible adherido al extremo distal de la válvula de inyección de combustible.

Apparatus and method for controlling a fuel injector under abnormal conditions

提供了一种用于包括燃料喷射装置(3)的内燃发动机的控制装置(5)。所述燃料喷射装置(3)包括喷射孔(31b，31c)，并且构造成将燃料从所述燃料喷射孔(31b，31c)喷入燃烧室(21)中。所述控制装置(5)包括实际喷射量输出部(53)、喷射量偏差输出部(51a)和异常处理命令部(51a)。所述喷射量偏差输出部(51a)输出指示实际喷射量与指令燃料喷射量之间的偏差的信号。如果所述偏差超过预定值，则所述异常处理命令部(51a)输出使得处理能够实行的信号。

Polyolefin-derived dispersants

Ethylene-C3-C10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C3-C10 alpha-olefin-derived units. The C3-C10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C3-C10 alpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents.

Nozzle head and fluid injection valve

Method for operating an injection valve of an internal combustion engine

The present invention relates to a method for operating an injection valve of an internal combustion engine, whereby the metering of fuel is adjustable in particular by varying the stroke of the nozzle needle of the injection valve. Methods and injections valves of this type are generally known from the related art. The aim of the present invention is to provide a method which makes it possible to prevent an incomplete closure of the valve due to soiling (the risk of damage caused by a gasoline-filled cylinder) in operating states of the internal combustion engine in which no complete strokes of the nozzle needle occur over a prolonged period of time and the nozzle is therefore not sufficiently scavenged. According to the present invention, the nozzle is scavenged with fuel when a jammed-open operating state of the nozzle needle is detected.

Nozzle body and fuel injection valve

연료 분사 밸브(1)용 노즐 본체(10)와 상기 노즐 본체(10)를 갖는 연료 분사 밸브(1)가 제시된다. 상기 노즐 본체(10)는 제1 구획(22)과, 상기 제1 구획(22)의 다운스트림에 제2 구획(24)을 구비하는 분사 채널(20)을 포함하고, 상기 제1 구획과 제2 구획(22, 24)은 공통 인터페이스(26)를 구비한다. 상기 제1 구획(22)의 단면적은 상기 제1 구획(22)의 연료 입구 개구(221)로부터 상기 공통 인터페이스(26)로 가는 경로에서 단조적으로 감소하고, 상기 제2 구획(24)의 단면적은 상기 공통 인터페이스(26)로부터 상기 제2 구획(24)의 연료 출구 개구(242)로 가는 경로에서 단조적으로 증가한다. A fuel injection valve 1 having the nozzle body 10 for the fuel injection valve 1 and the nozzle body 10 is shown. The nozzle body 10 includes a first compartment 22 and an injection channel 20 having a second compartment 24 downstream of the first compartment 22, The two compartments 22, 24 are provided with a common interface 26. Sectional area of the first compartment 22 monotonically decreases in a path from the fuel inlet opening 221 of the first compartment 22 to the common interface 26 and the cross sectional area of the second compartment 22 Increases monotonically in the path from the common interface (26) to the fuel outlet opening (242) of the second compartment (24).

Treated port fuel injectors

公开了处理过的孔式燃料喷射器。此处理过的孔式燃料喷射器表面覆盖了一层薄膜，以抑制或限制喷射器表面形成沉积物。此薄膜可以通过将孔式燃料喷射器与以下物质接触制备：(i)琥珀酰亚胺化合物，包括聚异丁烯取代的琥珀酸酐和多胺的反应产物；(ii)曼尼希碱清洁剂；和(iii)火花点火燃料。处理过的孔式燃料喷射器还可以包括通过将孔式燃料喷射器与以下物质接触形成的薄膜：(i)具有空间位阻伯氨基的多胺、烃基取代的羟基芳烃化合物和醛的曼尼希缩合反应产物；和(ii)火花点火燃料。还公开了在孔式燃料喷射器表面形成薄膜的方法。

Method of purging fluid injector by heating

A fluid injector for use in an exhaust treatment system is disclosed. The fluid injector may have a nozzle portion, a heater associated with the nozzle portion, and a controller in communication with the heater. The controller may be configured to recognize a condition triggering a purge event of the fluid injector. The controller may also be configured to activate the heater to purge the fluid injector in response to the recognized condition.

Valve for a fuel injection component

Ventil für eine Kraftstoffeinspritzkomponente, wobei das Ventil einen Hochdruckraum, einen Niederdruckraum, einen Ventilkolben, eine Ventilhülse und einen Ventilsitz aufweist. In der Ventilhülse ist eine Führungsbohrung ausgebildet, in welcher der Ventilkolben angeordnet ist. Dadurch ist die Ventilhülse von dem Ventilkolben über eine Führungslänge L längsbeweglich geführt. Die Ventilhülse wirkt durch ihre Längsbewegungen zum Öffnen und Schließen einer hydraulischen Verbindung von dem Hochdruckraum zu dem Niederdruckraum mit dem Ventilsitz zusammen. Zwischen dem Ventilkolben und der Führungsbohrung ist ein Leckagespalt ausgebildet, wobei der Leckagespalt den Hochdruckraum zumindest mittelbar mit dem Niederdruckraum verbindet. Im Bereich des Leckagespaltes ist am Ventilkolben in Umfangsrichtung eine Umfangsnut ausgebildet. Erfindungsgemäß ist die Umfangsnut in einem Abstand L1, der das 0,64-fache bis 0,89-fache der Führungslänge L beträgt, vorzugsweise das 0,64-fache bis 0,83-fache der Führungslänge L, vom Hochdruckraum entfernt angeordnet.

Aftertreatment injector anti-fouling device

Engine system and a method of operating a direct injection engine

Systems and methods are provided for an engine. The system comprises a direct injection engine having a cylinder in which a piston is slidingly supported to form in combination with a cylinder head a combustion chamber; a fuel injector for the cylinder having a catalytic coated tip portion that projects into the combustion chamber; and an electronic controller to control the operation of the engine and operates the engine in a heating mode of operation if heating of the fuel injector tip is requested. Various methods for heating the fuel injector tip are proposed including operating the engine on a reduced number of cylinders and varying one or both of fuel injection timing and quantity of fuel injected and the ignition timing in order to increase the temperature of combustion.

Treated port fuel injectors

Treated port fuel injectors are disclosed. The treated port fuel injectors have a surface coated with a film which resists or limits deposit formation on the injector surface. The film may be formed by contacting the port fuel injector with: (i) a succinimide compound comprising the reaction product of polyisobutylene-substituted succinic anhydride and a polyamine; (ii) a Mannich base detergent; and (iii) a spark ignition fuel. The treated port fuel injectors may also include a film formed by contacting the port fuel injector with: (i) a Mannich condensation reaction product of a polyamine having a sterically-hindered primary amino group, a hydrocarbyl-substituted hydroxyaromatic compound, and an aldehyde; and (ii) a spark ignition fuel. Methods of forming films on port fuel injector surfaces are also disclosed.

Fuel injector

An injector has an orifice plate formed with plural orifices. At a radially outward position of the orifice plate is disposed a wall at least partially. It is preferable that the wall be disposed at a lower position in the direction of gravity. In the wall is formed a guide hole toward an area on the orifice plate where a strong negative pressure is developed. A portion of fuel injected from the injector adheres as adhered fuel to the orifice plate or the wall. Under the action of a negative pressure on the orifice plate the guide hole sucks in the adhered fuel and returns it onto the surface of the orifice plate. The adhered fuel flows from the wall onto the surface of the orifice plate and again joins a fuel jet injected from the orifices. By utilizing a negative pressure developed near the plural orifices, the adhered fuel can be recovered and again injected. Consequently, it is possible to decrease the amount of adhered fuel.

Fuel injector and method for producing a nozzle body for a fuel injector

The invention relates to a fuel injector (10) for injecting fuel into a combustion chamber (B) of an internal combustion engine, having a nozzle body (12) which protrudes into the combustion chamber (B) when the fuel injector (10) is installed. The nozzle body (12) has an inner chamber (14) which can be provided with fuel and a wall (16) that separates the inner chamber (14) from the combustion chamber (B) and comprises at least one injection hole (20). A valve element (18) is arranged in the inner chamber (14) in a longitudinally adjustable manner in order to control the flow of fuel through the injection hole (20) according to the position of the valve element (18). The aim of the invention is to ensure that properties of the individual injection processes are as constant as possible even over longer operating times of the internal combustion engine. This is achieved in that an outer wall (16) surface (22) which faces the combustion chamber (B) and/or a wall (16) surface which delimits the injection hole (20) is provided with a coating (40) in the fuel injector (10) according to the invention. Thus, corrosion on the nozzle body (12) can be advantageously prevented.

Nozzle combustion shield and sealing member with improved heat transfer capabilities

An injector combustion shield assembly comprising a combustion shield including a first portion and a second portion, the first portion positionable around a body of a fuel injector and the second portion positionable around a nozzle element of the fuel injector; a first sealing member positionable intermediate the nozzle element and the combustion shield; a second sealing member positionable intermediate an annular wall of a nozzle receiving bore and the combustion shield; and wherein the first portion of the combustion shield includes a surface structured to contact the body of the fuel injector and contact an annular wall of an injector receiving bore when the combustion shield is positioned within the injector receiving bore such that heat is conducted to lower temperature parts of the injector receiving bore.

Injector

Fuel injector

本发明涉及燃料喷射器（10），它具有喷射器壳体（11），在该喷射器壳体中在一个导向孔（22）中设有一个能上下运动的部件（15）、尤其一个阀针，用于至少间接地释放及关闭所述喷射器壳体（11）中的喷射孔，其中，所述导向孔（22）使两个具有不同压力的压力室（20，25）彼此分开，及其中，位于这些压力室（20，25）中的燃料由具有高压力的压力室（20）通过构成在所述部件（15）与所述导向孔（22）之间的导向间隙（23）向着具有低压力的压力室（25）的方向流动。本发明提出，所述导向孔（22）与至少一个泄流通道（35，38）连接，在该泄流通道中具有比具有高压力的所述压力室（20）中低的压力。

Fuel injection nozzle

Disclosed is a nozzle body 100 for a fuel injector having a nozzle tip 102 and at least one spray hole 106 defined by a bore 112 passing a wall 104 of the nozzle body. A coating is applied to a surface of the spray hole to prevent coking of the hole. The coating may be silicone. A method of applying the coating is also disclosed. The spray hole may comprise an increased cross-sectional area section, such as a chamfer or curved wall section, adjacent a spray hole exit, to compensate for a thicker layer of coating applied in a Chemical Vapour Deposition (CVD) gas process.

Fuel injection nozzle

Die Kraftstoffeinspritzdüse ist für Dieselmotoren bestimmt und besteht aus einem Düsenkörper (1) mit Düsenkopf (2) und mindestens einem Ausdüskanal (3), wobei im Düsenkörper (1) axial beweglich ein Steuerventil (4) angeordnet und dem Dü­sen kopf (2), in dem der mindestens eine Ausdüskanal (3) an­geordnet ist, ein Kraftstoffdesintegrator (5) zugeordnet ist. Um die Kraftstoff-Luftmischung zu verbessern, ist der Desintegrator (5) in bezug auf die Längsmittelachse (6) des mindestens einen Ausdüskanals (3) sich längs oder quer zu dieser Längsmittelachse (6) erstreckend in Distanz vor der Ausmündung des Ausdüskanales im Strahlbereich (7) an­geordnet. Der Desintegrator (5) ist dabei in Form minde­stens eines im Strahlbereich (7) an einer Vielzahl von Stel­len wirksamen Zerstäubers ausgebildet. The fuel injection nozzle is intended for diesel engines and consists of a nozzle body (1) with a nozzle head (2) and at least one nozzle channel (3), a control valve (4) being axially movable in the nozzle body (1) and the nozzle head (2) in a fuel disintegrator (5) is associated with the at least one nozzle channel (3). In order to improve the fuel-air mixture, the disintegrator (5) extends with respect to the longitudinal center axis (6) of the at least one nozzle channel (3) along or across this longitudinal center axis (6) at a distance from the mouth of the nozzle channel in the jet area ( 7) arranged. The disintegrator (5) is designed in the form of at least one atomizer which is effective at a plurality of points in the beam region (7).

METHOD FOR INJECTING PETROL IN A CYLINDER OF A THERMAL ENGINE

Procédé d'injection d'essence dans un cylindre d'un moteur thermique fonctionnant par cycle, chaque cycle comprenant une combustion d'un mélange air/essence, procédé dans lequel lors d'au moins un cycle : - on injecte de l'essence dans le cylindre avant la combustion du mélange air/essence, et - on injecte de façon additionnelle de l'essence dans le cylindre au moins pendant tout ou partie de la combustion du mélange air/essence. A method of injecting gasoline into a cylinder of a thermal engine operating by cycle, each cycle comprising combustion of an air / gasoline mixture, a method in which, during at least one cycle: - gasoline is injected in the cylinder before the combustion of the air / gasoline mixture, and - gasoline is additionally injected into the cylinder at least during all or part of the combustion of the air / gasoline mixture.

Nozzle assembly and fuel injection valve for a combustion engine

연료 분사 밸브(1)를 위한 노즐 조립체(3)와 상기 노즐 조립체(3)를 갖는 연소 엔진을 위한 연료 분사 밸브(1)가 개시된다. 상기 노즐 조립체(3)는 중심 길이방향 축(15)을 갖는 밸브 몸체(7)를 포함하고, 상기 밸브 몸체는 밸브 공동(13)과 노즐 첨단 몸체(23)를 포함한다. 상기 노즐 첨단 몸체(23)는 상기 밸브 공동(13)의 자유 볼륨을 제한하고 돌출부(31)를 포함한다. 상기 돌출부(31)는, 상기 노즐 첨단 몸체(23)의 단부 표면(33)으로부터, 상기 밸브 공동(13)으로부터 멀어지는 방향으로, 상기 노즐 첨단 몸체(23)의 길이방향 축(16)과 평행한 연장되는 방향으로 연장된다. 상기 돌출부(31)는, 원통형 외부 표면을 구비하는, 상기 단부 표면(33)에 인접한 제1 구획(35), 및 상기 연장되는 방향을 따라 상기 단부 표면(33)으로부터 멀어지는 방향으로 감소하는 직경을 갖는 외부 표면을 구비하고, 적어도 하나의 노즐 애퍼처(25)를 포함하는, 상기 제1 구획(35)에 인접한 제2 구획(37)을 포함한다.