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Document Title |
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7963464 |
Fuel injector and method of assembly therefor
A fuel injector and a method of assembly includes a determination of various flow areas through clearances or openings formed in various components of the injector. With the various flow areas...
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7850091 |
Fuel injector with directly triggered injection valve member
A fuel injector having an injector body and a fuel inlet communicates with a high-pressure fuel source outside the injector body and including an actuator received in a hollow chamber from which a...
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7762478 |
High speed gasoline unit fuel injector
A gasoline unit injector includes a high speed, high force actuator such as a magnetrostrictive or piezoelectric actuator. The actuator operates a positive displacement diaphragm pump. The pumping...
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7694891 |
Fuel injector with boosted needle closure
Fuel injectors with boosted needle control providing controlled and rapid needle closure. Boost and drive pistons are provided for hydraulic actuation to controllably close the needle, with the...
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7651039 |
Fuel injection valve
A fuel injection valve includes a valve chamber, a control valve, an actuator, a control chamber, and a nozzle. The control valve is provided in the valve chamber. The actuator actuates the control...
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7568634 |
Injection nozzle
An injection nozzle for use in delivering fuel to an internal combustion engine includes an outer valve (24) which is engageable with an outer valve seat (38) so as to control fuel delivery into...
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7505846 |
Method for operating a fuel injection device of an internal combustion engine
A fuel injection device of an internal combustion engine includes a piezoelectric actuator and a valve element that are coupled to one another. The valve element has a pressure stage. An increase...
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7398933 |
Injection valve
An injector, in particular an injector for a combustion engine, includes at least one nozzle module which has an injection nozzle and a supply line for a fluid under a supply pressure, and a...
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7309032 |
Dosing device for fluids, especially a motor vehicle injection valve
An actuator (4) is connected, on one side, to a valve needle (3), and on the opposite side, to a hydraulic piston (6) pertaining to a hydraulic length compensator. A working chamber (5) is divided...
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7198203 |
Fuel injector with and without pressure ampification with a controllable needle speed and method for the controlling thereof
A fuel injector in injection systems for internal combustion engines having a valve body containing a control chamber that can be pressure-relieved and can be acted on with fuel via an inlet...
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7134616 |
Fuel injector with auxiliary valve
A fuel injector includes an auxiliary valve member that can assist in raising a mean injection pressure, increase a nozzle valve opening pressure, and hasten the closure rate of a nozzle valve...
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7128280 |
Injection nozzle for internal combustion engines, which has an annular groove in the nozzle needle
An injection nozzle is proposed in which the nozzle needle has an annular groove in the vicinity of the transition between the blind hole and the nozzle needle seat. In seat hole injection nozzles,...
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7083126 |
Fuel injection arrangement
A fuel injection arrangement, which comprises a fuel source and a fuel nozzle connected thereto, including a fuel chamber and a needle valve arrangement in connection with the fuel chamber for...
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7055765 |
Fuel injection valve
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, including a piezoelectric or magnetostrictive actuator, which, via a valve needle, actuates...
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7048209 |
Magneto-hydraulic compensator for a fuel injector
An apparatus and method of compensating for thermal expansion and tolerance variations (wear, brinelling, mounting distortion) in a fuel injector is provided. The apparatus includes a...
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7040550 |
Fuel injection valve
A fuel injector for the direct injection of fuel into the combustion chamber of an internal combustion engine includes a piezoelectric or magnetostrictive actuator, a hydraulic coupler, the...
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7021565 |
Pressure modulated common rail injector and system
Common rail fuel injectors typically have difficulty in changing an injection rate during an injection event. Fuel injectors for this common rail fuel injection system include a multi-position...
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7017840 |
Injection device for injecting fuel
An injection device for injecting fuel comprises a nozzle needle (2), which is arranged in a nozzle body (1), and a micro-bore (10) formed in the nozzle body (1), in which at least one injection...
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7004406 |
Enhanced needle motion controller
A controller for controlling a needle valve of a spring closing type fuel injector includes a fluid assist selectively exerting a force on the needle valve, the force acting in cooperation with a...
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6983895 |
Piezoelectric actuator with compensator
A temperature compensated actuator device comprises a piezoelectric stack having first and second ends along a central axis and having a first thermal expansion coefficient; and a compensator...
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6935580 |
Valve assembly having multiple rate shaping capabilities and fuel injector using same
Engineers have determined that the performance of fuel injectors, including those used in common rail fuel injection systems, can be increased, and undesirable emissions reduced, by controlling the...
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6913206 |
Fuel injector for an internal combustion engine with hydraulic pin actuation
The injector has a cylindrical body, which houses an injection nozzle regulated by an injection valve provided with a moveable pin, a fuel supply channel, an injection chamber communicating with...
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6908049 |
Diesel injection nozzle
An annular notch is provided in the body seat associated with the nozzle valve of an ALCO-type diesel injector. The notch extends from (i) an upper edge that is on the seat and is above the...
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6892967 |
Fuel-injection valve for internal combustion engine
The control space of the fuel injection valve is delimited, on the one hand, by the piston of the injection-valve member, on the other hand by the slide-valve body and circumferentially by the...
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6874705 |
Noise-optimized device for injecting fuel
The invention relates to a unit injector system for supplying the combustion chamber of a self-igniting internal combustion engine with fuel. The unit injector system has a high-pressure chamber...
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6874706 |
Solenoid valve comprising a plug-in/rotative connection
A solenoid valve for a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine having an injector body which includes an electromagnet. An armature group of...
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6871800 |
Fuel injector
A fuel injector (10; 100) comprises an inlet (60) from which fuel can be transferred into a cavity (61) of the injector, at least one outlet orifice (86) communicating with said cavity (61), and...
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6845756 |
High-pressure sealing element to four injectors
An injector for injecting fuel into the combustion chamber of an internal combustion engine includes an injector housing, in which a pressure chamber surrounds an insert part. The pressure chamber...
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6837450 |
Pressure-and-stroke-controlled injector for fuel injection systems
An injector for a common rail fuel injection system in which the opening of the nozzle needle is done under pressure control, while the nozzle needle is compulsorily closed when the control valve...
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6824081 |
Needle controlled fuel injector with two control valves
An improved fuel injector is provided which effectively controls fuel injection events using two injection control valves which operate in series to control the movement of a nozzle valve element....
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6820820 |
Hydraulic control device, in particular for an injector
The invention is based on a hydraulic control device (60), in particular for an injector (16) of a fuel injection system (10) in motor vehicles. Known control devices have a piezoelectric actuator,...
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6814301 |
Fuel injector having a high-pressure-resistant supply line
The present invention relates to an injector for injecting fuel into the combustion chamber of an internal combustion engine. The injector (1) is actuated by an actuator (29) and includes a central...
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6783086 |
Two-stage magnet valve of compact design for an injector of an injection system for internal combustion engines
A two-stage magnet valve for injectors of injection systems for internal combustion engines is proposed, which is very compact and simple in design, because an in-line connection of the first valve...
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6769635 |
Mixed mode fuel injector with individually moveable needle valve members
A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve...
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6758414 |
Fuel injection device for an internal combustion engine
A fuel injection device having a fuel pump for each cylinder of an internal combustion engine, which fuel pump has a pump piston that is driven in a stroke motion by the engine and delimits a pump...
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6749130 |
Check line valve faster venting method
A valve unit having a needle valve member, a control valve, a control line extending between the control valve and the needle valve member. Pressurized actuation fluid may be applied to the needle...
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6745958 |
Dual control valve
A control apparatus for a unit fuel injector, the injector internally preparing fuel during an injection event at a pressure sufficient for injection into an internal combustion engine by means of...
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6729554 |
Structure of fuel injector for avoiding injection of excess quantity of fuel
A fuel injector is provided which is designed to suppress unwanted vibrations of a nozzle needle-actuating piston, thereby avoiding the injection of an excess quantity of fuel. The fuel injector...
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6695230 |
Blind bore injection nozzle for internal combustion engines, with a rounded transition between the blind bore and the nozzle needle seat
An injection nozzle with a blind bore is disclosed in which the transition between the blind bore and the nozzle needle seat is rounded. This decreases the tolerance in the flow resistance of the...
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6666390 |
Sealing surface pressure increasing arrangement of fluid conducting system
Reduced thickness portions in a form of a recess are formed in a contact surface in a lower end of a tip packing, which contacts with an upper end of a nozzle body. Furthermore, reduced thickness...
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6663024 |
Compact high-pressure resistant injector for fuel injection
The invention relates to an injector for injecting fuel into combustion chambers of an internal combustion engine. The injector includes an injector housing, in which a control chamber is embodied...
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6644269 |
Fuel injection system having pre-injection and main injection
The angle of fuel spray at the time of pre-injection is set to a wider angle of spray and the angle of fuel spray at the time of main injection is set to a narrower angle of spray. The...
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6637670 |
Fuel injection device for an internal combustion engine having a pressure-holding valve
The fuel injection device has a fuel pump, which has a pump piston that is driven by an engine and delimits a pump working chamber, which is supplied with fuel from a fuel tank and is connected to...
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6565013 |
Common rail injector
The invention relates to a common rail injector having an injector housing (2), which communicates via a fuel inlet (3) with a central high-pressure reservoir, which is supplied with fuel from a...
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6561442 |
Injector/nozzle needle combination with coupling on the end oriented toward the control chamber
An injector for injecting fuel into the combustion chambers of a direct-injection internal combustion engine includes a control part which is received movably in the housing of the engine. The...
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6543706 |
Fuel injection nozzle for an internal combustion engine
A fuel injection nozzle controls the flow of pressurized fluid through a nozzle opening. The fuel pump includes a fuel valve under the control of an electronic engine control module to effect...
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6517011 |
Fuel injector with pressurized fuel reverse flow check valve
A fuel injector pressurizes fuel in a pressurization chamber and ejects the fuel from an orifice. A reverse flow check valve allows fluid communication between the pressurization chamber and the...
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6464149 |
Actuator arrangement
An actuator arrangement comprising a piezoelectric element formed from a piezoelectric material, a first end of the piezoelectric element cooperating with an input piston member slidable within a...
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6412704 |
Fuel injector with rate shaping control through piezoelectric nozzle lift
A fuel injector includes an injector body that defines a nozzle outlet. A needle valve member is mounted in the injector body and moveable a lift distance between an open position in which the...
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6412706 |
Fuel injector
A fuel injector comprising a valve needle, engagable with the seating to control fuel flow through a fuel outlet, the valve needle having a thrust surface oriented such that the application of fuel...
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