| Patent Number |
Title Of Patent |
Date Issued |
| 6991187 |
Magneto-hydraulic compensator for a fuel injector |
January 31, 2006 |
| 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 magneto-hydraulic thermal expansion compensator containing magnetically-active fluid positioned in o |
| 6830034 |
Fuel injector and fuel rail check valves |
December 14, 2004 |
| A fuel injector with a neck at an upstream end and a downstream end located at a distal end from the upstream end, a fuel channel extending from the upstream end to the downstream end and defining a substantially longitudinal axis, and a check valve located in the fuel channel proximate |
| 6811091 |
Modular fuel injector having an integral filter and dynamic adjustment assembly |
November 2, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6799733 |
Fuel injector having a modified seat for enhanced compressed natural gas jet mixing |
October 5, 2004 |
| A fuel injector having a fuel inlet, a fuel outlet, and a fuel passageway extending from the fuel inlet to the fuel outlet along a longitudinal axis. The fuel injector includes a body, a needle slidingly disposed within the body and a seat disposed at the fuel outlet. The seat has a |
| 6793162 |
Fuel injector and method of forming a hermetic seal for the fuel injector |
September 21, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6786434 |
Double concentric inlet tube for setting armature/needle lift and method of manufacturing same |
September 7, 2004 |
| An armature lift assembly for a fuel injector is disclosed. The assembly includes a body having an upstream end, a downstream end, and a longitudinal body channel extending therethrough and an armature/needle assembly which is reciprocably disposed in the body along the longitudinal |
| 6786423 |
Injection valve with single disc turbulence generation |
September 7, 2004 |
| A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a housing, a valve seat, a metering orifice, and a needle. The housing has an inlet, an outlet, and a longitudinal axis extending therethrough. The valve seat is disposed proximate the outlet a |
| 6778049 |
Apparatus and method for changing the dynamic response of an electromagnetically operated actuat |
August 17, 2004 |
| An apparatus for use in components such as servo-valves, regulators and injectors for stabilizing system oscillations. The apparatus includes an armature having at least one groove formed on an exterior surface thereof; a sleeve, the armature being movably disposed in the sleeve; and a s |
| 6769636 |
Modular fuel injector having interchangeable armature assemblies and having an integral filter a |
August 3, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6769176 |
Method of manufacturing a fuel injector |
August 3, 2004 |
| A method of manufacturing a fuel injector is disclosed. The method includes assembling a power group assembly with a valve group assembly to form the fuel injector. The power group assembly includes an overmold formed over a coil assembly. The valve group assembly includes a tube assembl |
| 6766965 |
Twin tube hydraulic compensator for a fuel injector |
July 27, 2004 |
| A fuel injector preferably has a body, a closure member, a piezoelectric device, and a hydraulic thermal compensator. The body extends along an axis. The closure member is displaceable with respect to the body between a first configuration and a second configuration. The first configurat |
| 6764032 |
Self-locking spring stop for fuel injector calibration |
July 20, 2004 |
| A fuel injector has a fuel inlet, a fuel outlet, and a fuel passageway extending along an axis between the fuel inlet and the fuel outlet. The fuel injector comprises a body, an armature, a spring, and a spring stop. The body has an inlet portion, an outlet portion, and a passage dispose |
| 6758421 |
Double concentric inlet tube for setting armature/needle lift and method of manufacturing same |
July 6, 2004 |
| An armature lift assembly for a fuel injector is disclosed. The assembly includes a body having an upstream end, a downstream end, and a longitudinal body channel extending therethrough and an armature/needle assembly which is reciprocably disposed in the body along the longitudinal |
| 6758408 |
Metallurgical and mechanical compensation of the temperature response of terbium-based rare-eart |
July 6, 2004 |
| An improved magnetostrictive actuator is provided. The actuator includes combinations of magnetostrictive alloy compositions and prestress values to provide improved temperature response for automotive applications, such as fuel injectors, without the need for complex electronic controls |
| 6755353 |
Compensator assembly having a pressure responsive valve for a solid state actuator of a fuel inj |
June 29, 2004 |
| A fuel injector comprises a body having a longitudinal axis, a length-changing solid state actuator that has first and second ends, a closure member coupled to the first end of the solid state actuator, and a compensator assembly coupled the second end of the solid state actuator. Th |
| 6748964 |
Flow-through pressure regulator self-contained valve assembly |
June 15, 2004 |
| The present invention provides a flow-through pressure regulator which is self-contained. The flow-through pressure regulator includes a housing having an inlet and an outlet offset along an axis. The housing is separated by a valve assembly into a first chamber and a second chamber. |
| 6748925 |
Injector and fuel rail assembly for installation on an integrated fuel rail |
June 15, 2004 |
| A fuel assembly is provided. The fuel assembly includes a fuel supply conduit, an air intake manifold, a fuel injector, and a spacer. The air intake manifold is disposed a predetermined distance from the fuel supply conduit. The fuel injector has a first end disposed in the fuel supply |
| 6742727 |
Injection valve with single disc turbulence generation |
June 1, 2004 |
| A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a housing, a valve seat, a metering orifice disc, and a needle. The housing has an inlet, an outlet, and a longitudinal axis extending therethrough. The valve seat is disposed proximate the outlet |
| 6739528 |
Compensator assembly having a flexible diaphragm and an internal filling tube for a fuel injecto |
May 25, 2004 |
| A fuel injector comprises a body having a longitudinal axis, a length-changing actuator that has first and second ends, a closure member coupled to the first end of the length-changing actuator, and a compensator assembly coupled the second end of the actuator. The length-changing ac |
| 6729563 |
Injection valve with single disc turbulence generation |
May 4, 2004 |
| A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a housing, a valve seat, a metering orifice, and a needle. The housing has an inlet, an outlet, and a longitudinal axis extending therethrough. The valve seat is disposed proximate the outlet a |
| 6720684 |
Method of control for a self-sensing magnetostrictive actuator |
April 13, 2004 |
| A method of controlling the amount of magnetostriction in a magnetostrictive actuator is provided. The method compensates for non-ideal influences, such as imperfections in the magnetostrictive member, prestress, stress or load, quality of the magnetic circuit, and temperature. The m |
| 6720526 |
Method and apparatus to form dimensionally consistent orifices and chamfers by laser using spati |
April 13, 2004 |
| A method of and apparatus for forming chamfers in an orifice of a workpiece. The orifice has an axis, which extends between a first surface and second surface of the workpiece, where the first and second surfaces are parallel to each other. The chamfers are disposed between the first |
| 6715695 |
Pressure responsive valve for a compensator in a solid state actuator |
April 6, 2004 |
| A fuel injector comprises a body having a longitudinal axis, a length-changin solid state actuator that has first and second ends, a closure member coupled to the first end of the solid state actuator, and a compensator assembly coupled the second end of the solid state actuator. The |
| 6715193 |
Fuel damper removal tool |
April 6, 2004 |
| A tool is provided for removing a component from a fuel rail in an automotive fuel system. The tool has a pair of jaws connected to a pair of pivoting handles, which allow the jaws to be opened and closed. The jaws have an inner cavity shaped to conform to an outer surface of the com |
| 6708907 |
Fuel injector producing non-symmetrical conical fuel distribution |
March 23, 2004 |
| A fuel injector including a body having an inlet, an outlet, and a fuel passageway extending from the inlet to the outlet along a longitudinal axis. An armature is proximate the inlet of the body. A needle is operatively connected to the armature. A seat is proximate the outlet of th |
| 6708906 |
Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actu |
March 23, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6705010 |
Method and apparatus for reducing the force required to insert a seal in a cavity |
March 16, 2004 |
| A method of reducing the force required to insert an elastomeric seal in a cavity of a metallic member includes tumbling the member in a tumbling machine with media to decrease the surface roughness of the member. Preferably, the tumbling step includes decreasing the surface roughness of |
| 6702250 |
Magnetostrictive electronic valve timing actuator |
March 9, 2004 |
| An apparatus and method for actuating a valve using magnetostrictive transduction is provided. A ferro-magnetic rod having giant magnetostrictive properties is operatively coupled with a hydraulic chamber. Application of a magnetic field to the ferro-magnetic rod generates strain in |
| 6698664 |
Modular fuel injector having an integral or interchangeable inlet tube and having an integral fi |
March 2, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6695232 |
Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve |
February 24, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6691381 |
Fuel rail mounting clip |
February 17, 2004 |
| A a clip for mounting an elongated fuel rail with respect to an internal combustion engine. The fuel rail extends along a longitudinal axis and includes a mounting portion at an intermediate positon along the longitudinal axis, and the internal combustion engine includes a recess. Th |
| 6688322 |
Apparatus and method for sealing a fuel component in a fuel communication passage |
February 10, 2004 |
| A fuel component assembly having a fuel component disposed between a base and a cover, which prevent fluid communication to an exterior thereof. The fuel component defines at least one aperture, the base supports the fuel component and defines a passage in communication with the at least |
| 6687997 |
Method of fabricating and testing a modular fuel injector |
February 10, 2004 |
| A method of fabricating a modular fuel injector permits the fabrication of the electrical group subassembly outside a clean room while a fuel group subassembly is fabricated inside a clean room. The method provides for manufacturing a sealed fuel injector unit via a predetermined number |
| 6687965 |
Apparatus for setting armature/needle lift in a fuel injector |
February 10, 2004 |
| A method of setting a distance between a first body and a second body in a fuel injector is disclosed. The method includes providing an intermediate body having a first end, a second end and a longitudinal axis, the first end being fixedly connected to the first body and the second end b |
| 6685112 |
Fuel injector armature with a spherical valve seat |
February 3, 2004 |
| A fuel injector having a fuel inlet, a fuel outlet, and a fuel passageway extending along an axis between the fuel inlet and the fuel outlet. The fuel injector includes a body having an inlet portion, an outlet portion, and a neck portion disposed between the inlet portion and the outlet |
| 6676046 |
Closure member with armature strap |
January 13, 2004 |
| A fuel injector having a housing including an inlet, an outlet, and a passageway for fuel flow from the inlet to the outlet. A coil assembly is disposed proximate the inlet of the fuel injector. A seat is disposed proximate the outlet of the fuel injector. A closure member is disposed in |
| 6676044 |
Modular fuel injector and method of assembling the modular fuel injector |
January 13, 2004 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6676043 |
Methods of setting armature lift in a modular fuel injector |
January 13, 2004 |
| Several methods of setting the armature lift of a modular fuel injector are disclosed. The methods include the use of a crush ring or a lift sleeve that is inserted into the valve body during assembly of the modular fuel injector. The methods further include the technique of adjusting th |
| 6676035 |
Dual-spring compensator assembly for a fuel injector and method |
January 13, 2004 |
| A fuel injector comprises a body having a longitudinal axis, an length-changing actuator that has first and second ends, a closure member coupled to the first end of the length-changing actuator, and a compensator assembly coupled the second end of the actuator. The length-changing a |
| 6676030 |
Compensator assembly having a flexible diaphragm for a fuel injector and method |
January 13, 2004 |
| A fuel injector comprises a body having a longitudinal axis, a length-changing actuator that has first and second ends, a closure member coupled to the first end of the length-changing actuator, and a compensator assembly coupled the second end of the actuator. The length-changing ac |
| 6672286 |
Corrugated fuel rail damper |
January 6, 2004 |
| A fuel rail that forms a conduit for pressurized fuel to be delivered to at least one fuel injector. The fuel rail includes an elongated member that is corrugated such that the fuel rail acts as a pressure damper. A method of reducing pressure pulsation in a fuel system is achieved by co |
| 6665926 |
Method and apparatus for improved valve seating of a fuel injector by coining and a valve made t |
December 23, 2003 |
| A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and the second work piece axially |
| 6657847 |
Method of using inductance for determining the position of an armature in an electromagnetic sol |
December 2, 2003 |
| An improved method for controlling the landing velocity of an armature in an electromechanical actuator, such as a fuel injector, fuel pressure regulator, or engine valve actuator is provided. The position and velocity of an armature during a stroke is dynamically estimated by calculatin |
| 6655612 |
Needle/armature rotation limiting feature |
December 2, 2003 |
| The present invention provides a solenoid actuated fuel injector. The fuel injector includes a housing having a fuel inlet, a fuel outlet, and a fuel passageway extending along a longitudinal axis. The fuel injector additionally includes a valve body having an inlet portion and an armatu |
| 6655610 |
Self-locking spring stop for fuel injector calibration |
December 2, 2003 |
| A fuel injector has a fuel inlet, a fuel outlet, and a fuel passageway extending along an axis between the fuel inlet and the fuel outlet. The fuel injector comprises a body, an armature, a spring, and a spring stop. The body has an inlet portion, an outlet portion, and a passage dispose |
| 6655609 |
Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an |
December 2, 2003 |
| A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that i |
| 6655608 |
Ball valve fuel injector |
December 2, 2003 |
| A solenoid actuated fuel injector includes a valve body, a valve seat at one end of the valve body and having a seating surface facing the interior of the valve body and including a fuel outlet opening, a fuel tube for conducting pressurized fuel into the valve body against the seating |
| 6651628 |
Fuel injector with orientation feature for orienting injector with respect to the manifold or he |
November 25, 2003 |
| A top feed fuel injector for an internal combustion engine includes a housing; a fuel passage within the housing; an electrically controlled valve mechanism for controlling fuel flow through the fuel passage; and a radially extending protrusion on the housing, the radially extending |
| 6650032 |
Electronic compensator for a piezoelectric actuator |
November 18, 2003 |
| A fuel injector comprises a tube assembly, a stem assembly, and a plurality of sets of piezoelectric elements. The tube assembly includes a seat defining an opening through which fuel enters an internal combustion engine. The stem assembly includes a cap and a stem that are relatively |
| 6648249 |
Apparatus and method for setting injector lift |
November 18, 2003 |
| A method of directly setting an injector lift that involves the provisioning of a valve body having an uniform internal diameter, inserting a sleeve assembly to a predetermined distance and securing the sleeve assembly. The apparatus includes a sleeve, a lower armature guide and a se |
