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WO/2015/058822A1 |
Dual-fuel injection system (1) having a combustion gas-supply device (3) and a liquid fuel-supply device (5), comprising a combustion gas-injector unit (7) with a liquid fuel-control part (21) and a gas nozzle part (23), to which combust...
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WO/2015/025078A1 |
The fuel injection circuit for a piston engine comprises at least one fuel injection pump (7) and at least one fuel injector (12) for each cylinder (14) of the engine. Each fuel injector (12) is connected to a fuel circulation duct (16) ...
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WO/2015/025079A1 |
The fuel injection system for a piston engine comprises a first fuel circuit for injecting liquid fuel and a second fuel circuit for injecting liquid pilot fuel into the cylinders (14) of the engine. The first fuel circuit comprises at l...
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WO/2015/022445A1 |
In the method for injecting liquid fuel into a cylinder (1) of a piston engine, the fuel is injected during each combustion cycle in a first phase at a first injection pressure and at a first flow rate, and in a second phase at a second ...
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WO/2015/014476A1 |
Dual-fuel fuel injector (1) for a fuel injection device, having a nozzle body (3), wherein a receptacle (5) for a nozzle needle (7) which can be displaced axially therein is formed in the nozzle body (3); wherein a first nozzle arrangeme...
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WO/2015/004938A1 |
The purpose of the present invention is to enable switching from fuel-gas operation to fuel-oil operation, without temporarily stopping a diesel engine in cases when, during fuel-gas operation in which a fuel gas is injected from gas inj...
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WO/2014/205566A1 |
A module for controlling a first fuel rail pressure in an internal combustion engine and maintaining a predetermined pressure bias with a second fuel rail pressure comprises a manifold body and several components that are mounted on the ...
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WO/2014/187649A1 |
A fuel injector for an internal combustion engine, comprising an injector body (12), a first actuator for controlling movement of a first valve needle for injecting a first fuel into a cylinder of the engine, and a second actuator for co...
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WO/2014/186892A1 |
A fuel injector (100) for an internal combustion engine is disclosed. The fuel injector is particularly suitable for use as a dual fuel injector, and comprises a generally tubular outer valve needle (130), an inner valve needle (140) sli...
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WO/2014/186891A1 |
A fuel injector, preferably a dual fuel injector, for an internal combustion engine is disclosed. The fuel injector comprises first and second valve needles (80, 100) arranged to control the injection of first and second fuels, first and...
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WO/2014/186893A1 |
A fuel injector (200) for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and comprises a body region (B) arranged to be received within the cylinder h...
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WO/2014/167166A1 |
The present invention relates to a fuel injection unit (14) for assembly to a cylinder head and for injecting first and second fuel to a cylinder of an internal combustion piston engine, the fuel injection unit (14) comprising a first fu...
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WO/2014/139274A1 |
Provided is a dual-passage piezoelectric oil injector, comprising a dual-passage oil injector body (9), wherein the bottom end of the oil injector body is connected to an upper intermediate body (5), a lower intermediate body (4) and a d...
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WO/2014/144807A1 |
The present technology relates generally systems and methods for providing motion amplification and compensation by fluid displacement in gaseous fuel injector systems. For example, some embodiments of gaseous fuel injectors include a pi...
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WO/2014/111623A1 |
(57) Abstract Invention relates to a fuel system (10) for a gas operated internal combustion piston engine (12) comprising a gaseous fuel feeding system (14), a first liquid fuel feeding system (20) and a second fuel feeding system (40),...
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WO/2014/075765A1 |
Two-substance injector (1) with a nozzle valve (17), formed for the injector by a nozzle needle (13) and a nozzle valve seat (15) therefor, wherein a first high pressure fluid path (3), particularly a fuel path, is guided via a flow cros...
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WO/2014/066995A1 |
A method for detecting and diagnosing a gaseous fuel leak in a dual fuel internal combustion engine system comprises producing a fault signal indicating that there is a leak of gaseous fuel into liquid fuel when an amount of gaseous fuel...
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WO/2014/071034A1 |
A retrofit kit (80) for converting a single-fuel engine (10) having an air box (40) to run on two different fuels is disclosed. The kit may have at least one gaseous fuel injector (38) mountable inside the air box and associated with eac...
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WO/2014/063248A1 |
A method that protects a direct injection fuel injector in a multi-fuel engine comprises selectively operating the engine with at least one of a directly injected fuel introduced through the direct injection fuel injector and a second fu...
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WO/2013/188970A1 |
A fuel injection valve is provided for injecting a fuel into the combustion chamber or into the injection port of an internal combustion engine, the valve being actuated by an actuator assembly that comprises a small displacement actuato...
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WO/2013/190108A1 |
The invention concerns an injection pump arrangement, comprising an injection pump (6), in particular a high-pressure injection pump, and a switching valve (2) for alternatively supplying the injection pump (6) with a liquid combustion f...
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WO/2013/181753A1 |
There is an improved apparatus for supplying gaseous fuel from a liquid state to an internal combustion engine comprising an electrical energy generating apparatus for generating electrical energy from a store of chemical energy; a liqui...
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WO/2013/167753A1 |
The invention relates to a fuel system and method for a combustion engine with direct injection. The system comprises at least one high pressure fuel line connected to an injection device of the combustion engine for the direct injection...
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WO/2013/096278A1 |
A dual fuel common rail fuel injector (12) includes a first and second check needle used to selectively inject two different fuels such as diesel and liquefied natural gas. The fuel injector (12) includes a fuel separator (71) disposed i...
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WO/2013/096280A1 |
The present disclosure is directed to a fuel circuit (500) of a fuel injector (12) that includes a first channel, a second channel, and a valve (80). The first channel is configured to receive a first fuel and define a flow path for the ...
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WO/2013/086427A1 |
A multi-fuel injector has an internal pressure intensifier which has means to intensify fuels with different viscosities, cetane or octane numbers, with high viscosity fuel being used to intensify both itself and low viscosity fuels to h...
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WO/2013/075234A1 |
A flexible-fuel internal combustion engine apparatus comprises a combustion chamber, an intake valve, a first fuel injector, a second fuel injector, and a computer. The intake valve is operable to admit an intake charge into the combusti...
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WO/2013/071430A1 |
An improved method and apparatus are provided for pumping fuel to a fuel injection system in an internal combustion engine. The method comprises steps of pumping a liquid fuel to a first pressure; using the liquid fuel at the first press...
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WO/2013/063023A1 |
A dual fuel system (10) includes a dual fuel injector (12) defining a gaseous fuel inlet (48), a gaseous nozzle outlet set (90), a liquid fuel inlet (57) and a liquid nozzle outlet set (96). The dual fuel injector (12) has disposed there...
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WO/2013/056347A1 |
A multifunctional spacer is provided for a dual fuel internal combustion engine. The spacer provides a separate passage for supplying a second fuel to a dual fuel injection valve of the engine wherein the passage for supplying a first fu...
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WO/2013/045756A1 |
The fuel injection pump arrangement for a dual-fuel internal combustion engine comprises a pump body (1), at least one fuel chamber (10) that is arranged inside the pump body (1), at least one reciprocating plunger (2) that protrudes int...
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WO/2013/033140A1 |
A dual fuel injector (12) includes an injector body (70) that defines a liquid fuel inlet (57) fluidly connected to a liquid nozzle chamber (99), a gas fuel inlet (48) fluidly connected to a gas nozzle chamber (91), and a tip component (...
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WO/2013/033136A1 |
A duel fuel system (10) includes a plurality of fuel injectors (12) that have a non-injection configuration, a liquid fuel injection configuration, a gaseous fuel injection configuration and a combined fuel injection configuration. Each ...
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WO/2013/025835A1 |
A system according to the principles of the present disclosure includes a fuel mass module and a fuel control module. The fuel mass module determines a first fuel mass before the first fuel mass is injected into one of a cylinder of an e...
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WO/2013/025829A1 |
A method for a multi-fuel vehicle includes: determining a first target amount of fuel to be injected for a combustion event of a combustion chamber of an engine; determining first and second fractions for the combustion event based on at...
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WO/2013/025833A1 |
A control system for an engine includes a fuel mass determination module, a mass fraction determination module, and a fuel injector control module. The fuel mass determination module determines a first minimum fuel mass corresponding to ...
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WO/2013/017321A1 |
The invention relates to an injection device (1) for an internal combustion engine (100), comprising a first injection valve (12) for injecting fuel of a first fuel combination based on ethanol, and a separate second injection valve (22)...
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WO/2013/003888A1 |
A fuel injection system (10) for delivering metered amounts fuel into the combustion chamber or cylinder of an engine. The fuel delivered can selectively comprise a gaseous fuel, a liquid fuel or a fuel mixture comprising the gaseous fue...
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WO/2013/003889A1 |
A method for fuelling an internal combustion engine, and a fuel system for delivering a variety of fuel types to the engine, configured to accommodate liquid fuels such as gasoline, ethanol or a blend thereof, and gaseous fuels such as C...
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WO/2012/177478A2 |
A method of operating an electronically controlled dual fuel compression ignition engine (5) includes injecting a pilot ignition quantity of liquid fuel into an engine cylinder (7) from a dual fuel injector (12) in an engine cycle during...
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WO/2012/171119A1 |
A dual fuel injection valve with concentric needles comprises an inner needle and an outer needle surrounding the inner needle, both needles being located inside the injection valve body. The valve is provided with a first set and a seco...
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WO/2012/174190A1 |
A method for supercritical diesel combustion combines fumigation and supercritical diesel fuel combustion to effect greater fuel efficiency and reduce exhaust gas pollutants from a compression ignition engine. The invention utilizes the ...
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WO/2011/130791A9 |
The present invention is directed to a dual fuel supply system for supplying fuel to a direct-injection system of a diesel engine. The dual fuel supply system includes a diesel supply system to supply diesel to the direct-injection syste...
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WO/2012/163462A1 |
The present disclosure generally refers to a double-walled fuel supply line element (5) configured to be used in a fuel supply system (100) of e.g. middle to large-sized internal combustion engines and a method for manufacturing such a f...
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WO/2012/157001A1 |
Double powering injector 1 characterized by a cylindrical conical double seal sprayer 5 able to allow the alternative injection both of gas oil and gas using only one injection system, wherein the feeding switching to the sprayer alterna...
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WO/2012/155030A2 |
A dual fuel injector (100) may be used to injector both gas and liquid fuel into a cylinder (7) of a compression ignition engine (5). An injector body (12) defines a first set of nozzle outlets (90), a second set of nozzle outlets (90), ...
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WO/2012/089388A1 |
The invention relates to an injection device (1') for an internal combustion engine (1), comprising a first injection assembly (3) for injecting fuel (4) of a first fuel composition, and a second injection assembly (5) for injecting fuel...
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WO/2012/089382A1 |
The invention relates to an injection device (1') for an internal combustion engine (1), comprising a first injection assembly (3) for injecting fuel (4) of a first fuel composition based on compressed natural gas (CNG), and a second inj...
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WO/2012/077484A1 |
The purpose of the present invention is to prevent the decrease in fuel injection pressure and the deterioration in combustion performance to thereby prevent the deterioration in performance of an internal combustion engine and also prev...
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WO/2012/078133A1 |
Embodiments of injectors configured for adaptively injecting multiple different fuels and coolants into a combustion chamber, and for igniting the different fuels, are disclosed herein. An injector according to one embodiment includes a ...
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