161results about "Low pressure fuel injection" patented technology

A fuel injection system for an engine of a vehicle includes a throttle body and an elastomeric injection manifold coupled to the downstream end of the throttle body. The injection manifold defines a fuel injector socket. The fuel injection system also includes a fuel injector receivable by the fuel injector socket of the injection manifold and a fuel rail fluidly coupled to the fuel injector. The fuel rail supplies fuel to the fuel injector.

To suppress vapor lock even when vapor is generated in a fuel supply device caused by the evaporation of fuel.SOLUTION: A fuel supply device (50) comprises a fuel pump (51) delivering fuel from a fuel tank to a fuel passage, a fuel filter (54) located on the downstream side of the fuel passage further than the fuel pump, a branch joint (61) located on the downstream side of the fuel passage further than the fuel filter, and a fuel injection valve (62) injecting the fuel from the downstream end of the fuel passage to an intake passage. In the branch joint, a pair of branch pipes are provided. To one branch pipe, a return pipe (73) is connected for returning the fuel to the fuel pump, and to the other branch pipe, a feed pipe (74) is connected for guiding the fuel to the fuel injection valve. One branch pipe is located at a position higher than the position of the other branch pipe.SELECTED DRAWING: Figure 4

A dual fuel engine system and / or retrofit system includes a cylinder head (102), an intake manifold (202), a first fuel injector (106), and a second fuel injector (204). The cylinder head defines an intake port (104). The intake manifold is coupled to the cylinder head. The first fuel injector extends into the cylinder head and is configured to dispense a first fuel. The second fuel injector extends through the intake manifold and into the cylinder head. The second fuel injector is configured to dispense a second fuel. The second fuel injector (204) is oriented to spray the second fuel into the intake port (104). The intake manifold includes an injector mount (210) extending therethrough, the injector mount separating an airflow plenum (211) of the intake manifold from the second fuel injector (204).

A throttle body arrangement (10) for an internal combustion engine (12), comprising: a throttle body (18) with a pressure chamber (100) in which a supply quantity of liquid fuel is received through a fuel inlet (104) and an outlet (120), and a throttle bore (20) with an inlet (22) through which air is received; a throttle valve (52) carried by the throttle body (18) with a valve head (54) movable relative to the throttle bore (20) to control fluid flow through the throttle bore (20); a metering valve (28; 152) carried by the throttle body (18) and comprising an electrically driven actuator (72) with a valve element (68) that is movable by the electrically driven actuator (72) between an open position in which fuel can flow from the pressure chamber outlet (120) into the throttle bore (20) and a closed position in which less fuel flows through the metering valve (28; 152) and into the throttle bore (20) compared to when the valve element (68) is in the open position, and wherein less fuel includes the state in which no fuel flows through the metering valve (28); and a valve arrangement (106) comprising a valve (108) movable relative to a valve seat (110) to control fuel flow into the pressure chamber (100) through the fuel inlet (104), and a float (112) coupled to the valve (108) to move the valve (108) into a closed position against the valve seat (110) when a threshold level of fuel is present in the pressure chamber (100), characterized in that The throttle body (18) also has a vent (102) which is connected to the pressure chamber (100) and through which gaseous substances in the pressure chamber (100) can escape from the pressure chamber (100).

The present disclosure relates to filter media containing antimicrobial compounds, methods for making the filter media, filter elements, filter systems, and methods for filtering water in the combustion chamber of an internal combustion engine using the filter media.

According to an aspect of the present application, there is provided a radially deformable volume splitter (100; 200) for a fuel injection system (1) of a spark-ignition engine (2). The volume splitter (100; 200) can be tubular and elongate, extending along a longitudinal axis from a first end (102) to a second end (104). The volume splitter (100; 200) can comprise a deformable longitudinal slot (116) operable to deform the volume splitter (100; 200) radially from a first state for insertion into a cavity (18; 218) of the emulsion injection common rail (10) to a second state for use within the cavity (18; 218), and a set of slots (112a-112k) arranged on an outer surface (106) of the volume splitter (100; 200) to connect, in use, an inlet (20) of the cavity (18; 218) to one or more outlets (22a-22d) of the cavity (18; 218).

Fuel injection system comprising (i) a plurality of injectors, the plurality of injectors comprising at least two injectors (40, 50), the plurality of injectors being configured to inject gaseous fuel into an engine (20), (ii) a fuel tank (30) being configured to store gaseous fuel, and (iii) a delivery line (312, 313) being configured to supply gaseous fuel from the fuel tank to each of the plurality of injectors, the fuel injection system comprising: a wear amount estimation unit (72) configured to estimate a wear amount of each of the plurality of injectors; and a determination unit (73) configured to determine, based on the wear amount of each of the plurality of injectors estimated by the wear amount estimation unit, which of the plurality of injectors is preferably operated; and wherein the wear amount estimation unit is further configured to estimate the wear amount of each of the plurality of injectors based on a cumulative number of operating cycles of each of the plurality of injectors; and wherein The determining unit is further configured to calculate a subtraction value, obtained by subtracting the cumulative number of operating operations from a predetermined number of operating operations, for each of the plurality of injectors and preferably to operate one of the plurality of injectors that has the largest subtraction value.

The invention relates to a fuel distributor strip (2) for a fuel device (1), in particular for a fuel injection system or a fuel injection system, comprising a main body (15) for storing and / or distributing fuel, in particular hydrogen, and comprising at least one connection piece (16, 17, 18) to which a fuel valve (6, 7, 8) can be connected, the connecting piece (16, 17, 18) has a connecting surface (20) facing an outer side (21) of the main body (15), an access opening (23) of a connecting channel (22) of the connecting piece (16, 17, 18) being arranged in the connecting surface (20), and wherein the connecting piece (16, 17, 18) is connected to the main body (15) at least by means of a brazing connection on the connecting surface (20). According to the invention, a) the connecting piece (16, 17, 18) has at least one recess (25, 26, 27, 28) in the connecting surface (20) of the connecting piece and / or the main body (15) has at least one recess in the connecting surface (20) of the connecting piece (16, 17, 18) and b) the at least one recess (25, 26, 27, 28) in the connecting surface (20) of the connecting piece (16, 17, 18) and / or the main body (15) has at least one recess in the connecting surface (20) of the connecting piece (16, 17, 18) in the connecting surface (20) of the connecting piece (16, 17, 18). At least one groove on the connecting surface (20) of the connecting piece (16, 17, 18) at least substantially surrounds an inlet opening (21) of the connecting channel (22) of the connecting piece (16, 17, 18), and a fuel system (1) having such a fuel distributor bar (2).

An aircraft having an engine and a throttle thereof. The throttle has a throttle body (1), the throttle body (1) is provided with a cavity (10) and comprises an inlet port (11) and an outlet port (12) both of which are connected to the cavity (10); a plurality of fuel injectors (2), each of the fuel injectors (2) is arranged on the throttle body (1) and can spray fuel into the cavity (10) of the throttle body (1); and an air filter (3). The air filter (3) is arranged on the throttle body (1) and connected to the inlet port (11). There is an air door (4) that can rotate in the cavity (10) to connect or block the inlet port (11) and the outlet port (12). Additionally, there is an air door driving part connected to the air door (4) and controls the rotation of the air door (4).

To provide a fuel pressure sensor that can accurately detect fuel pressure.SOLUTION: A fuel pressure sensor is fitted to a fuel pipe while being separated from an inner wall of the fuel pipe and is positioned outside from the inner wall.SELECTED DRAWING: Figure 2

The application relates to the field of aeroengines, in particular to a two-stroke aero-piston engine air intake system and an air intake flow control method. The system comprises an air filter, a throttle body, an oil injector, a reed valve and a fuel supply unit for supplying oil to the oil injector which are communicated through a connecting pipeline, and further comprises a cooling control subsystem, the cooling control subsystem comprising a cooling injector which is arranged on the connecting pipeline downstream of the throttle body and upstream of the oil injector; the inner wall surface of the connecting pipeline is provided with a non-uniform protruding structure to improve the proportion of the air intake along the resistance. The scheme can solve the technical problem that the air intake flow of the two-stroke aero-piston engine has large discreteness under low load, and realizes the technical effect of improving the consistency of the air intake flow under the low load of the engine.

An injector and rail assembly (10,fig.1) comprising a fuel injector 22 provided with a ring flange 48 and an injector head 20 for receiving fuel. The rail assembly comprises a common rail housing (12,fig.1) defining a reservoir volume 14. The rail housing comprises at least one socket 16 having a bore 18 for delivering fuel from the reservoir volume to the injector head. The injector and rail assembly further comprises a mechanical connector 26 for sealingly mounting the fuel injector to the socket. The connector has an upper portion 50 to threadedly engage an outer surface 28 of the socket and a lower portion 54 having a first face 66 to interface with a second face 62 of the ring flange. At least one of the first and second surfaces define a curved surface. The first face may be convexly curved and the second surface may be concavely curved.

This technology provides a way to heat a pressure regulator with a simple configuration. [Solution] The ammonia supply system comprises a vaporizer for vaporizing liquid ammonia and a pressure regulator for adjusting the pressure of the gaseous ammonia after vaporization by the vaporizer. The vaporizer has a spiral ammonia flow path through which liquid ammonia and gaseous ammonia flow. The pressure regulator is located inside the spiral ammonia flow path.

The present invention provides a delivery pipe for an engine that can support a pipe main body in a posture, in which an opening portion is directed upward, in welding of a plug and can prevent unnecessary extension of an entire length. A delivery pipe of the present invention includes: a pipe main body 2 being formed of a synthetic resin, in which a large-diameter portion 5 having a collar shape is formed on one end side, one end of a fuel passage 4 in an internal portion and along an axis line has an opening portion 6 formed in the large-diameter portion 5, and as outer periphery protrusion portions, bracket portions 8l and 8r and a plurality of injector connection portions 10l and 10r are integrally formed with an outer periphery surface; and a plug 3 being joined to the large-diameter portion 5 and blocking the opening portion 6. A first support surface 17 to be supported by a first fixing jig 21r is formed on the injector connection portion 10r closest to one end side, a second support surface 19 to be supported by a second fixing jig 21l is formed on an opposite side to the first support surface 17 around the axis line as a center and on another end side of the large-diameter portion 5, and the first and second support surfaces 17 and 19 have flat surface shapes facing another end side.

A two-stroke engine includes a cylinder and a piston configured to reciprocate in a bore portion along an axial direction. An intake port is opened and closed by the piston. A two-stroke engine includes a crankcase connected to the cylinder and having a crank chamber, a crank mechanism disposed in the crank chamber and configured to rotate about a crankshaft, a connecting rod having a small end connected to the piston and a large end connected to the crank mechanism, and a fuel injector attached to the crankcase and configured to inject mixed fuel in a tangential direction of a circumferential trajectory of the large end to spray the mixed fuel to the large end.

A fluid distributor (1) for a fuel injection device (100), in particular a fuel distributor rail (1) for a fuel injection device (100) of a mixed compression, externally ignited internal combustion engine, having a tubular base body (2) which is preferably processed by single-stage or multi-stage forging, wherein a first high-pressure outlet (9), a second high-pressure outlet (10) and a third high-pressure outlet (11) are arranged on the base body (2), wherein the second high-pressure outlet (10) is arranged offset with respect to the first high-pressure outlet (9) in a first direction (X1) along a longitudinal axis (4) of the tubular base body (2) by a predefined distance (24), wherein the third high-pressure outlet (11) is arranged offset with respect to the second high-pressure outlet (10) in the first direction (X1) along the longitudinal axis (4) by the predefined distance (24), wherein a first holding element (5) and a second holding element (6) for at least indirectly fastening the base body (2) are arranged on the base body (2), and wherein the first holding element (5) and the second holding element (6) are arranged on the tubular base body (2) such that, viewed along the longitudinal axis (4), an axis (7) of the first holding element (5) is positioned at most 0.5 times the predefined distance (24) apart from an axis (12) of the first high-pressure outlet (9) in the first direction (X1), and such that, viewed along the longitudinal axis (4), an axis (8) of the second holding element (6) is positioned at most 0.5 times the predefined distance (24) apart from an axis (14) of the third high-pressure outlet (11) against the first direction (X1).

The present invention relates to a method for determining one or more characteristic times (NOS, NOE, NCS, NCE) of a fuel injection performed by a fuel injector of an internal combustion engine, as well as a computing unit and a computer program for implementing the method, in which a signal (S) is received from a sensor (36) detecting the fuel pressure change due to the injection of the fuel injector and is evaluated accordingly by the method.

An apparatus (100, 200) suitable for utilizing hydrogen, comprising: a hydrogen preparation unit (102) configured to supply a gaseous hydrogen-containing medium containing at least 85 volume percent hydrogen at a pressure between a lower limit and an upper limit; a hydrogen collection unit (101, 201) including one or more pipe elements (300, 301) that together define an interior space bounded by a wall; and a hydrogen treatment unit (103) configured to treat and / or use the hydrogen-containing medium, wherein the apparatus (100, 200) is configured to perform the steps of supplying the hydrogen-containing medium from the hydrogen preparation unit (102) to the hydrogen collection unit (101, 201) and supplying the hydrogen-containing medium from the hydrogen collection unit (101, 201) to the hydrogen treatment unit (103), wherein the upper pressure limit is 50 bar or less, and each of the one or more pipe elements (300, 301) is cast from nodular cast iron having a tensile strength of 600 MPa or less.

To provide a dual-fuel engine system, an intake manifold, and a method for manufacturing a dual-fuel engine system. [Solution] A dual-fuel engine system and / or modified system comprises a cylinder head, an intake manifold, a first fuel injector, and a second fuel injector. The cylinder head defines an intake port. The intake manifold is coupled to the cylinder head. The first fuel injector extends into the cylinder head and is configured to supply a fixed amount of the first fuel. The second fuel injector extends into the cylinder head through the intake manifold. The second fuel injector is configured to supply a fixed amount of the second fuel. The second fuel injector is oriented to spray the second fuel into the intake port.

The fuel atomization device of the present invention is characterized by including: a second coupling part coupled to a first coupling part formed on an air bleeder tube or a carburetor main body; a first through hole formed on the air bleeder tube side and having a diameter larger than that of the outlet; a second through hole communicating with the first through hole, having the same diameter as the outlet, and communicating with and connected to the outlet of a jet nozzle; a step formed by the difference in diameter between the first and second through holes or by separate processing; spacers sequentially stacked on the step and having a third through hole in the center having the same diameter as the outlet; a plurality of meshes arranged between the spacers; and fixing means for fixing the stacked meshes and the spacer.

This invention provides a cryogenic storage system that enables automated storage and retrieval of samples in cryogenic environments, as well as automated transfer of individual samples between cryogenic environments. Stored samples are maintained below a cryogenic temperature threshold while remaining accessible. Samples can be organized and tracked by scanning their individual barcodes. Embodiments may also include multiple storage containers and provide transfer of individual samples between these containers and between the storage containers and a removable cryogenic storage device.

A radially deformable volume splitter of an emulsion injection common rail for a fuel injection system of a spark ignition engine. The volume splitter may be tubular and elongate, extending along a longitudinal axis from a first end to a second end. The volume splitter may comprise: a deformable longitudinal slot operable to radially deform the volume splitter from a first state for insertion into a cavity of the emulsion injection common rail to a second state for use inside the cavity; and a set of grooves, arranged on an outer surface of the volume splitter, for connecting an inlet of the cavity to one or more outlets of the cavity, in use.

A dual fuel engine system and / or retrofit system includes a cylinder head, an intake manifold, a first fuel injector, and a second fuel injector. The cylinder head defines an intake port. The intake manifold is coupled to the cylinder head. The first fuel injector extends into the cylinder head and is configured to dispense a first fuel. The second fuel injector extends through the intake manifold and into the cylinder head. The second fuel injector is configured to dispense a second fuel. The second fuel injector is oriented to spray the second fuel into the intake port.

To provide a variable funnel device which can achieve downsizing and reduction of the weight by devising a drive mechanism of a variable funnel.SOLUTION: In a variable funnel device (1), a variable funnel (8) disposed at the upstream side of a throttle body (13) is supported in a manner that the variable funnel (8) can reciprocate along an intake air passage direction. The movable funnel (8) is driven by a drive mechanism (M) using a ball screw (22). The variable funnel device (1) further includes: a fixed funnel (10) disposed at the upstream side of intake air relative to the movable funnel (8); and an injector (11) for injecting a fuel from the upstream side of the fixed funnel (10). The fixed funnel (10) and the injector (11) are supported by the drive mechanism (M).SELECTED DRAWING: Figure 2

An apparatus comprises an internal combustion engine including an intake stream, at least one piston cylinder. An air assisted injector is configured to insert a plurality of liquid droplets into the intake stream or cylinder. The injector comprises a gas injection portion configured to deliver a gas to a mixing chamber at a first pressure and a first pulse width. A liquid injection portion is configured to deliver a liquid to the mixing chamber at a first temperature and a second pulse width, and after a predetermined delay relative to the gas so as to generate the plurality of liquid droplets having a mean diameter of up to 5 microns. A nozzle is configured to deliver the plurality of liquid droplets into the intake chamber or cylinder. The gas and the inserted liquid droplets are compressed during a compression stroke in the cylinder and fully vaporize throughout the compression stroke.

An engine 1 includes a common rail 16 attached to one side portion 302 of a cylinder block 6 that pivotally supports a crankshaft in a rotatable manner, the one side portion 302 extending along a crankshaft center, the common rail 16 being configured to supply a fuel to the engine 1. A flywheel housing 7 that accommodats a flywheel that is rotated integrally with the crankshaft is disposed in one side portion out of opposite side portions of the cylinder block 6 intersecting the one side portion 302. One end portion of the common rail 16 is disposed above the flywheel housing 7. Also a cooling pump 21 is disposed on a side portion 312 of the cylinder block 6, whereby a coolant passage 610 in the cylinder block 6 is providing a concave region 611 for the electrical connector 601a of the common rail 16.

An internal combustion engine injector mounting (1700) is configured to i) secure an injector (36) to an internal combustion engine body (14) so that the injector can inject a heated aqueous fluid and a fuel into a combustion chamber (12) of the internal combustion engine, and ii) hold a catalyst (1714) so that the heated aqueous fluid and fuel are injected into the combustion chamber by passing through the catalyst. The catalyst is contained within the mounting to protect against oxidation by combustion processes that, in use, take place in the combustion chamber.

The invention relates to an engine device comprising a common rail (16) that supplies fuel to an engine (1), and a flywheel housing (7) that accommodates a flywheel (8) rotating integrally with a crankshaft (5), wherein an end portion of the common rail is positioned above the flywheel housing and the common rail and the flywheel housing overlap in a plan view.