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| Number | Title | Issue Date |
| 7431220 | Injector for fuel injection systems of internal combustion engines, especially direct-injection diesel engines A fuel injector having a piezoelectric actuator in an injector body and held in contact with the injector body on one side and with a sleevelike booster piston on the other via first spring means. A nozzle body joined to the injector body and a stepped nozzle needle... | 10/07/2008 |
| 7395812 | Fuel-injection system for an internal-combustion engine The injection system comprises a high-pressure pump (7) with variable flowrate, having a number of pumping elements (18) actuated with reciprocating motion and provided each with a corresponding intake valve (22). An accumulation volume (28 | 07/08/2008 |
| 7353805 | Fuel injector pump with trapped volume A pumping system (10) for a fuel injection system including a pump body defining a pumping chamber, a plunger (14), a high-pressure outlet, a high-pressure fluid line (18) connecting the pumping chamber to the outlet and a trapped volume (20 | 04/08/2008 |
| 7350505 | Common rail fuel pump A common rail fuel pump for an internal combustion engine includes a pumping plunger (10) that is reciprocable within a plunger bore (14) provided in a pump housing (16) under the influence of a drive arrangement (18, 20) to cause fuel pr... | 04/01/2008 |
| 7334741 | Fuel injector with injection rate control A closed nozzle fuel injector is provided which effectively controls the fuel injection flow rate, especially during an initial portion of an injection event, while also permitting accurate control over pilot and/or post injection flow rates at all operating conditi... | 02/26/2008 |
| 7331329 | Fuel injector with directly controlled highly efficient nozzle assembly and fuel system using same Reducing leakage within fuel injectors is one way in which the efficiency of the overall fuel injection system can be improved. In most fuel injectors that include a direct control needle valve, the needle valve member is still biased toward a closed position by a s... | 02/19/2008 |
| 7325536 | High-pressure fuel pump control device for engine A high-pressure fuel pump control device is capable of reducing current consumption, increasing pump durability, and promoting a rise of fuel pressure from startup. The high-pressure fuel pump control device comprises a fuel injector valve for directly injecting fue... | 02/05/2008 |
| 7287510 | Secured operation of electronic throttle control (ETC) in dual module system An engine control system that regulates first and second throttles of an internal combustion engine includes a primary control module that generates a throttle area based on an operator input and a second control module that determines a second throttle position bas... | 10/30/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7252072 | Methods and systems of diagnosing fuel injection system error A fueling system for an internal combustion engine. The system has a voltage booster and a fuel injector. The voltage booster is operatively coupled to the injector to selectively drive the injector. A method includes determining compliance of a booster voltage with... | 08/07/2007 |
| 7240666 | High-pressure fuel pump control device for engine A high-pressure fuel pump control device capable of reducing current consumption, increasing pump durability, and promoting a rise of fuel pressure from startup. The high-pressure fuel pump control device comprises a fuel injector valve for directly injecting fuel i... | 07/10/2007 |
| 7225794 | Common rail fuel injection system Immediately before fuel pressure is increased by a pressure-increase mechanism, a pressure-increase control valve of each cylinder is opened in timing that does not overlap the timing of opening of an injection control valve, and the period of time for which the pre... | 06/05/2007 |
| 7216815 | Control valve for a fuel injector comprising a pressure exchanger A servo-valve for a fuel injector equipped with a pressure booster whose working chamber is separated from a differential pressure chamber by a booster piston in which an actuator can connect a control chamber to a first low-pressure return and the differential pres... | 05/15/2007 |
| 7216629 | High-pressure injection system with a control throttle embodied as a cascade throttle A high pressure injection system comprises at least one fuel high pressure accumulator, a control chamber and a valve, in addition to an injection valve having a valve needle and a control piston. The control chamber is connected to the high pressure accumulator by ... | 05/15/2007 |
| 7207305 | Method for engine speed control A method for engine speed control for an internal combustion engine generating unit (1) is disclosed, whereby a first time point is set when the actual speed (nM(IST)) exceeds a threshold value and a second time point set when the actual speed (nM(IST)) excee... | 04/24/2007 |
| 7182070 | Method and device for shaping the injection pressure in a fuel injector A method for triggering a fuel injector via an on/off valve and a control valve that actuates it. The fuel injector has a pressure booster whose piston parts separate a working chamber from a differential pressure chamber. Via a compression chamber of the pressure b... | 02/27/2007 |
| 7178510 | Fuel system A fuel system for use in an internal combustion engine, the fuel system comprising a source of high pressure fuel for supplying fuel through a single fuel supply path to an injector for injecting fuel, a first valve arrangement for controlling initiation of fuel inj... | 02/20/2007 |
| 7165531 | Negative rate shaping torque capsule A negative rate shaping torque capsule is provided that effectively reduces torque rise of the engine. The device is part of the mechanical governor and allows fuel control rack position to decrease as engine speed decreases, thus reducing the amount of fuel deliver... | 01/23/2007 |
| 7134424 | Fuel pump with internal pressure regulation An apparatus for delivering fuel includes a fuel pump having a fuel inlet side and a fuel outlet side, and a fuel pumping mechanism operable to draw fuel from the fuel inlet side and pressurize the fuel for transmission to the fuel outlet side. A pressure regulator ... | 11/14/2006 |
| 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, the annular groove is disposed in the vicinity of the injection orif... | 10/31/2006 |
| 7124744 | Variable control orifice member and fuel injector using same Engineers have determined that the ability to front end rate shape injection events can result in a number of advantages, including improved injector performance and a reduction in undesirable emissions. In addition, engineers have learned that it is desirable for t... | 10/24/2006 |
| 7124746 | Method and apparatus for controlling a fuel injector Controlling fuel injectors to create varying injection rates and injection rate shapes typically involves using multiple control valves to control fuel pressure and check valve opening pressure independently. The fuel injector of this application uses a single contr... | 10/24/2006 |
| 7121263 | Device and method for regulating the control valve of a high-pressure pump A high-pressure pump is provided in order to supply fuel to the fuel rail of a common rail injection system in an internal combustion engine. The input-side control valve of the pump is closed during the pumping cycle in order to separate the inner chamber of the pu... | 10/17/2006 |
| 7096856 | Fuel feed pump for internal combustion engines A fuel feed pump is provided that has a fuel flow-rate regulating valve, on the inlet side. The fuel flow-rate regulating valve includes a housing with a fuel inlet port and a fuel outlet port, a valve mechanism for controlling the flow rate of the fuel from the inl... | 08/29/2006 |
| 7066150 | Fuel injection system for internal combustion engines A fuel injection system with a fuel injection valve and a control valve, which control valve has a control valve member that can move longitudinally in a control valve bore. The control valve member is provided with a control valve sealing surface, which cooperates ... | 06/27/2006 |
| 7047946 | Method for operating an internal combustion engine In a method for forming a fuel/air mixture in a direct-injection internal combustion engine with a fuel injection nozzle arranged in each cylinder, a closing member of the fuel injection nozzle is moved from a closed position to an operating position by means of a c... | 05/23/2006 |
| 7040288 | Fuel injection system A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A needle valve drive unit includes a pre... | 05/09/2006 |
| 7032574 | Multi-stage intensifiers adapted for pressurized fluid injectors Multi-stage intensifiers for injectors of pressurized fluid (e.g., fuel) allowing selection of intensified injection fluid pressure and thus fluid injection flow rate by selectively applying actuating fluid supply pressure to one or more of the multi-stage intensifi... | 04/25/2006 |
| 7017553 | Fuel injection device for an internal combustion engine A fuel injection apparatus having a high-pressure fuel pump and a fuel injection valve for each cylinder of an internal combustion engine, in which fuel pump has two pump pistons driven by the engine and delimiting a pump working chamber supplied with fuel from a ta... | 03/28/2006 |
| 7004749 | Combustion apparatus A combustion apparatus 2 has a fuel spraying nozzle 12, a feed canal 16 and a return canal 17, both the canals connected to the nozzle, with the former canal 16 feeding a fuel to the nozzle and with the later canal 17 allowi... | 02/28/2006 |
| 6978766 | Control module for a storage-type injection system injector A control module (1) for an injector designed to control and guide a valve body (8) comprises a high-pressure supply element (2), a guiding device (3) for guiding the valve body, a control compartment (4), a control valve (10 | 12/27/2005 |
| 6978770 | Piezoelectric fuel injection system with rate shape control and method of controlling same A piezoelectric fuel injection system and a method of controlling same are provided which include a piezoelectric fuel injector having a piezoelectric element, a power source adapted to provide power to the piezoelectric element to actuate the piezoelectric fuel inj... | 12/27/2005 |
| 6976389 | Method for setting the nozzle opening pressure for an injection nozzle and arrangement for carrying out the method In order to set the nozzle opening pressure for an injection nozzle, in particular for a diesel injection nozzle, to an accuracy of around ±1%, the method provides that the injection needle is first pressed against the valve seat with a closing force (Fz), and then... | 12/20/2005 |
| 6976474 | Mechanically actuated, electronically controlled fuel injection system A fuel injection system includes a fuel pressurizer that may be cam actuated. The fuel injection system also includes an electronically controlled spill valve and an electronically controlled needle control valve. The energization of the electronically controlled sp... | 12/20/2005 |
| 6964266 | 3/2 Directional-control valve The invention relates to a 3/2-port directional-control valve for controlling the injection of fuel in a common rail injection system of an internal combustion engine, with a first switched position in which an injection nozzle is connected to a fuel return and with... | 11/15/2005 |
| 6953022 | Fuel injection pump A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and... | 10/11/2005 |
| 6938610 | Fuel injection device with a pressure booster A fuel injection system includes a pressure chamber having a displacable piston which can be subjected to pressure via a low-pressure-side pressure booster chamber for compressing the fuel in a high-pressure-side pressure booster chamber to be delivered to an inject... | 09/06/2005 |
| 6928985 | Fuel injection device for internal combustion engines, having a common rail injector fuel system A fuel injection device includes a housing with an injection end and a recess extending in the housing. An axially movable valve element disposed in the recess cooperates with a valve seat, which axially defines a control chamber. A sleeve part radially defines the ... | 08/16/2005 |
| 6928992 | Universal injection valve assembly A universal injection valve assembly including an injector assembly having a housing, an inlet aperture, an outlet aperture, and a seat located adjacent the outlet aperture. In addition, the injection valve assembly includes a control member movably interconnected t... | 08/16/2005 |
| 6925988 | Fuel-injection system for internal combustion engines A fuel injection system for internal combustion engines, having a high-pressure accumulation chamber, which contains high-pressure fuel, and at least one fuel injection valve, which is connected to the high-pressure accumulation chamber. The fuel injection valve can... | 08/09/2005 |
