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| Number | Title | Issue Date |
| 8113176 | Injector with axial-pressure compensated control valve The invention relates to an injector for injecting fuel into combustion chambers. According to the invention, a valve piston of a control valve is provided with low pressure on both faces thereof. The valve piston is arranged in a valve chamber hydraulically connect... | 02/14/2012 |
| 8113177 | Electromagnetic fuel injector and method for assembling the same An electromagnetic fuel injection valve comprising: a metallic cylindrical-shaped vessel provided at a tip end thereof with a fuel injection port, the other end thereof being closed by a stationary core provided centrally thereof with a through-hole; a movable membe... | 02/14/2012 |
| 8033269 | Fuel injection device To provide a fuel injection device capable of reducing the amount of fuel discharging to the outside. The fuel injection device is provided with the nozzle body, the injection control valve, and the close assistance piston. In the nozzle body, the first fuel chamber... | 10/11/2011 |
| 7987835 | Fuel injector The invention relates to a fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has an injection valve element which is adjustable between a closing position and an open... | 08/02/2011 |
| 7984706 | Control method for closed loop operation with adaptive wave form of an engine fuel injector oil or fuel control valve A method and system controls motion of an armature 112 of a fuel injector 100. The armature moves between an open coil 118 and a close coil 116 of the injector. Acceleration current of a certain polarity is applied to the open coil 118... | 07/26/2011 |
| 7946274 | Electromagnetic fuel injector and method for assembling the same An electromagnetic fuel injection valve comprising: a metallic cylindrical-shaped vessel provided at a tip end thereof with a fuel injection port, the other end thereof being closed by a stationary core provided centrally thereof with a through-hole; a movable membe... | 05/24/2011 |
| 7900604 | Dampening stop pin A dampening stop pin that reduces a needle velocity at the time when the needle valve of a fuel injector is about to be seated in a closed position. A gap between a bottom surface of the stop-pin flange and a sealing seat of a nozzle is provided to compress the fuel... | 03/08/2011 |
| 7757663 | Electromagnetic drive mechanism and a high-pressure fuel supply pump The objective of the present invention is to dampen operating sounds of an electromagnetic drive mechanism used for a variable displacement to reduce an individual difference depending on apparatus due to the control mechanism in a high-pressure fuel supply pump cha... | 07/20/2010 |
| 7721713 | Electromagnetic fuel injector and method for assembling the same An electromagnetic fuel injection valve comprising: a metallic cylindrical-shaped vessel provided at a tip end thereof with a fuel injection port, the other end thereof being closed by a stationary core provided centrally thereof with a through-hole; a movable membe... | 05/25/2010 |
| 7721714 | Fuel delivery pipe A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexib... | 05/25/2010 |
| 7690357 | Fuel injection valve A fuel injection valve is provided with a main body and a valve member. The main body has a fuel passage and a fuel injection opening formed at the downstream-end of the fuel passage. The valve member is provided in the fuel passage. The valve member is configured t... | 04/06/2010 |
| 7661410 | Fluid leak limiter A fluid leak limiter for a high-pressure fuel injection system is disclosed. The fluid leak limiter may have a body at least partially defining a central bore and having a fluid inlet and a fluid outlet, a piston reciprocatingly disposed within the central bore, and... | 02/16/2010 |
| 7658179 | Fluid leak limiter A fluid leak limiter for a high-pressure fuel injection system is disclosed. The fluid leak limiter may have a body at least partially defining a central bore with a fluid inlet and a fluid outlet, and a sleeve piston. The fluid leak limiter may also have a spring l... | 02/09/2010 |
| 7628139 | Fuel injector with dual piezo-electric actuator A fuel injector 10 for a Diesel engine has a plunger 12 and two control valves 20 and 30 for controlling the injection of fuel from the main supply cavity to the discharge port 52. Each control valve 20 and 30 are act... | 12/08/2009 |
| 7628140 | High-pressure pump or injector plug or guide with decoupled sealing land A unitary high pressure seal provides a fluid seal against multiple surfaces, at least one of which is static and one of which is dynamically loaded. The seal includes a seal body and separated load and sealing lands. The load land interfaces with the static surface... | 12/08/2009 |
| 7621258 | Injector of a fuel injection system of an internal combustion engine An injector with a double-switching control valve in which a valve body is guided in the housing of the control valve in a way that reduces the wear on a valve cone of the valve body and on a first valve seat in the housing of the control valve. ... | 11/24/2009 |
| 7610902 | Low noise fuel injection pump A fuel pump assembly has a bushing defining a pumping chamber, a plunger, a cam follower piece, and a compliance device for absorbing noise by increasing either or both of a hydraulic and/or a mechanical compliance of the fuel pump assembly. The compliance device ma... | 11/03/2009 |
| 7591247 | Fuel injector A fuel injector for a fuel system is disclosed. The fuel injector has a nozzle member and a needle valve member slidingly disposed with the nozzle member. The nozzle member has a tip portion, at least one orifice disposed at the tip portion, a base portion, and a fe... | 09/22/2009 |
| 7527036 | Servo valve for controlling an internal combustion engine injection A control servo valve is housed inside the casing of an internal combustion engine fuel injector, and has an actuator, a control chamber communicating with a fuel inlet and with a fuel outlet passage, and a shutter movable along an axis by the actuator between a clo... | 05/05/2009 |
| 7513240 | High pressure fuel pump provided with damper A fuel feed system capable of feeding a fuel to fuel injection valves at a fuel pressure with improved stability is provided. A fuel feed system for an internal combustion engine including a fuel tank and a low-pressure pump for feeding the fuel in the fuel tank to ... | 04/07/2009 |
| 7513241 | Fuel injection valve with pressure gain The invention relates to a fuel injection valve for intermittent fuel injection into the combustion chamber of internal combustion engines. A needle-shaped injection valve member (34) is arranged in the high-pressure fuel chamber (30) adjacent to the i... | 04/07/2009 |
| 7506635 | Fuel injection system A first valve element (32) and second valve element (34) are arranged in a pressure switching chamber (30) of a three-way valve (8). When switching a destination of a fuel flow passage (15) from a high pressure fuel feed passage ( | 03/24/2009 |
| 7500472 | Fuel injection valve A fuel injection valve for an automotive internal combustion engine comprises a needle valve and an opposite member which are in slidable contact with each other in presence of fuel. A hard carbon thin film is coated on at least one of the sliding sections of the ba... | 03/10/2009 |
| 7472691 | Fuel injection valve A valve body surrounds a first passage connecting with a cylinder of an engine. A valve member is adapted to be seated on and lifted from the valve seat. An injector body connects with the valve body. The injector body has a pressure control chamber for controlling ... | 01/06/2009 |
| 7448362 | Conduit arrangement in a control valve module for a fuel injector assembly A control valve module (14′) for a fuel injector assembly (10) has a conduit arrangement where a high-pressure passage (108) has a first portion (110) extending linearly between an annulus (106) surrounding the control valve cyli... | 11/11/2008 |
| 7444991 | Fuel injector including an orifice disc, and a method of forming the orifice disc including punching and shaving A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice plate includes a member and an orifice penetrating the member. The member includes first and second generally parallel surfaces. The first surface generall... | 11/04/2008 |
| 7441545 | Fuel pressure relief valve A fuel pressure relief valve includes a body defining a passageway having an inlet end in communication with a fuel pump and an outlet end in communication with a fuel rail. The valve also includes a seal member moveable between a first position in which the seal me... | 10/28/2008 |
| 7438054 | Fuel injector for a direct injection internal combustion engine A fuel injector comprising: an injection valve provided with a mobile needle to regulate the fuel flow; an actuator adapted to shift the needle; an injection nozzle; a supporting body having a tubular shape and displaying a feeding channel; a sealing body provided w... | 10/21/2008 |
| 7438053 | Fuel delivery pipe A purpose of the present invention is to provide a fuel delivery pipe having a flexible absorb wall surface formed on a wall surface thereof in which a fuel introduction pipe is connected to an interior of the fuel delivery pipe body at one end thereof in a longitud... | 10/21/2008 |
| 7434567 | Internal filter for a fuel injector A fuel injector including a filter 30 provided within the tip portion 12 of the injector body 10, down stream of the fuel inlet port 14 and upstream of the spray aperture 14. The filter 30 is in the form of a hollow truncate... | 10/14/2008 |
| 7415969 | Fuel injector having recessed check top A fuel injector for a machine is disclosed. The fuel injector has a nozzle member with a first end and a second end. The first end of the fuel injector has at least one orifice. The fuel injector also has a control chamber located at the second end of the nozzle mem... | 08/26/2008 |
| 7412969 | Direct needle control fuel injectors and methods Direct needle control fuel injectors and methods disclosed. The preferred embodiment injectors have a needle within a needle chamber for movement between a closed position preventing injection of fuel and an open position allowing injection of fuel, a source of high... | 08/19/2008 |
| 7406945 | Common rail system with pressure amplification A fuel system includes a fuel rail that communicates fuel at a first pressure through a fuel amplifier to a fuel injector. The fuel pressure amplifier increases the pressure from the first pressure to a second pressure. The second pressure is higher than the first p... | 08/05/2008 |
| 7404389 | Direct injection internal combustion engine A direct injection engine has a fuel injection valve that directs a spray of fuel to each side of a spark plug electrode. The fuel mixes with the air to define a region of relatively richer air-fuel mixture and a region of relatively leaner air-fuel mixture. The ele... | 07/29/2008 |
| 7404393 | Fuel injection system A fuel injection system comprising an accumulator volume (10) arranged to be charged with fuel by means of a high pressure fuel pump (12) and for supplying fuel at a first injectable pressure level to a plurality of fuel injectors (22), wherein ... | 07/29/2008 |
| 7401593 | High-pressure fuel pump with a pressure relief valve A high-pressure fuel pump with a pressure relief valve which has improved hydraulic properties and a reduced number of high-pressure sealing points. ... | 07/22/2008 |
| 7401594 | Damper mechanism and high pressure fuel pump To obtain a small and high performance damper mechanism which reduces pressure pulsation in low pressure-side fuel in the high pressure fuel pump in a high pressure fuel supply system or a high pressure fuel pump provided with the small and high performance damper m... | 07/22/2008 |
| 7398765 | Fuel injection device of internal combustion engine A fuel injection device has a two-way control valve driven by a two-position actuator. The control valve directly controls oil pressure in a back pressure chamber to control an injection operation of an injection nozzle. A two-position three-way flow passage switchi... | 07/15/2008 |
| 7387110 | Common rail injector A common rail injector having an injector housing having a fuel supply line which communicates with a central high-pressure fuel source outside the injector housing and with a pressure chamber inside the injector housing, from which pressure chamber, as a function o... | 06/17/2008 |
| 7383794 | Injection nozzle for internal combustion machines Within an injection nozzle for the injection of fuels into the combustion chamber of an internal combustion machine the injection nozzle (5) comprising an axially displaceable valve needle (7), which plunges into a control chamber (12) chargeabl... | 06/10/2008 |
