Fuel Injector Or Burner Patents (Class 239/533.2)
  • Patent number: 10655523
    Abstract: An injector for injecting a reagent includes a first injector body and a second injector body. The first injector body includes an outlet opening. The second injector body includes a reagent tube. The second injector body is movable relative to the first injector body. The injector further includes a valve assembly at least partly enclosed by the first injector body. The valve assembly is configured to selectively dispense the reagent through the outlet opening of the first injector body. The injector further includes a spring member positioned between the first injector body and the second injector body. The spring member is pre-loaded to bias the second injector body towards the first injector body. The spring member is further configured to limit a maximum movement of the second injector body relative to the first injector body in response to expansion of the reagent during freezing.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 19, 2020
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Abhijit P Upadhye, Alan Brockman, Olaf Enke, Mark Devito
  • Patent number: 10626834
    Abstract: A vehicle component includes a surface that is configured to contact a fuel containing ethanol and zinc ions. A sacrificial carbon layer is disposed on the surface. The sacrificial carbon layer has a thickness of greater than or equal to about 250 nm to less than or equal to about 5 ?m. The sacrificial carbon layer includes carbon that is configured to complex and solubilize ZnO deposited on the surface, wherein the ZnO forms from the zinc ions carried by the fuel.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 21, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhongyi Liu, Michael P. Balogh, Nicholas P. Irish, Matthew T. Hamilton
  • Patent number: 10605191
    Abstract: A method for determining an injection quantity of a fuel injector determines a first time at which an injection process of the fuel injector starts, a second time at which the injection process of the fuel injector ends, calculates a model on the basis of the first time and the second time, which model represents the position of a nozzle needle of the fuel injector as a function of the time, and calculates the quantity of fuel to inject.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 31, 2020
    Assignee: Vitesco Technologies GmbH
    Inventors: Christian Hauser, Gerd Roesel, Markus Stutika
  • Patent number: 10508634
    Abstract: The invention relates to an injection nozzle (1) for fuels, comprising a nozzle body (2), in which a pressure chamber (4) that can be filled with fuel under high pressure is formed, in which pressure chamber a piston-shaped nozzle needle (3) is arranged in such a way that the nozzle needle can be moved longitudinally. A sealing surface (6) is formed at one end of the nozzle needle (3) and an end face (9) is formed at the opposite end, wherein the sealing surface (6) interacts with a nozzle seat (5) in order to open and close at least one injection opening (8). A control chamber (10) that can be filled with fuel under changing pressure is bounded by the end face (9) of the nozzle needle (3) such that a force can be applied to the end face (9) in the direction of the nozzle seat (5) by means of the hydraulic pressure. The nozzle needle (3) has an elastic longitudinal segment (25), which has a longitudinal stiffness of less than 40,000 N/mm.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 17, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Rau
  • Patent number: 10300559
    Abstract: A laser drilling method is a laser drilling method for performing drilling on a workpiece by use of a laser beam. The laser drilling method includes, after machining a through hole by radiating the laser beam to the workpiece (S100), scanning with the laser beam centered around the through hole toward a radial direction while changing a radiation output of the laser beam (S200).
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: May 28, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsutaka Yoshida, Natsuki Sugiyama, Akio Sato, Kenji Kidera, Masaru Setodoi, Taku Yamaguchi
  • Patent number: 10197030
    Abstract: A bush is disposed on an inner wall of a fixed core. A second spring, which biases a movable core in a valve-closing direction, has one end abutting the bush. The bush is formed separately from the fixed core, and is formed to be movable relative to the fixed core when adjusting a biasing force of the second spring. When a needle is abutting a valve seat, a gap is formed between a movable core first abutting face of the movable core and a flange end face of a flange portion included in the needle. Accordingly, during valve-opening, a relatively large force in a valve-opening direction is applied to the needle. Further, by changing the position of the bush relative to the movable core, the biasing force of the second spring may be adjusted without changing a length of the gap in a central axis direction.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 5, 2019
    Assignee: DENSO CORPORATION
    Inventors: Tomoji Matsukawa, Hiroyuki Inoue
  • Patent number: 10087875
    Abstract: A fuel injection valve control device controlling a fuel injection valve that injects a fuel into a combustion chamber includes an operation-condition calculation portion that calculates a fuel injection condition of the fuel injection valve based on a crank angle detected by a crank angle sensor that detects the crank angle of an engine, a current-waveform setting portion that sets a current waveform of a current supplied to the fuel injection valve on the basis of the fuel injection condition calculated by the operation-condition calculation portion, and so on. The current-waveform setting portion sets the current waveform so as to set a temporal change of a pickup current of a needle provided in the fuel injection valve to be equal to or less than a predetermined reference value when a fuel injection start timing is equal to or more than 180 degrees BTDC.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 2, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masayuki Niwa, Noritsugu Kato, Makoto Tanaka
  • Patent number: 10006422
    Abstract: A fuel injector 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 has a body region arranged to be received within the cylinder head bore, and a head region arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore. The injector includes a first valve needle arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet for admitting the gaseous fuel to the injector, and a liquid fuel inlet port for admitting the liquid fuel to the injector. The gaseous fuel inlet is disposed in the body region of the injector, and the liquid fuel inlet port is disposed in the head region of the injector. The injector can also include an internal accumulator volume so that an external fuel rail is not necessary.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 26, 2018
    Assignees: WESTPORT POWER INC., DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.
    Inventors: George A. Meek, Lukhbir Panesar
  • Patent number: 9957936
    Abstract: A combustion chamber injection nozzle (12) having a plurality of injection channels (37) for a main fuel gas, a pre-combustion chamber, and a plurality of torch channels (52) for hot combustion gas connected to the pre-combustion chamber (15), the injection channels (37) and the torch channels (52) communicating with peripheral openings arranged next to one another so as to alternate in a circumferential direction.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 1, 2018
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Martin Könczöl, Gerhard Kogler, Peter Steinrück
  • Patent number: 9651008
    Abstract: A sub out-orifice and an in-orifice are respectively formed in a low pressure passage and a high pressure passage of a fixed plate. A control valve is provided at an outlet port of the low pressure passage. In a normal control, the control valve starts its control-valve opening operation when a movable plate is in contact with the fixed plate. In an interval-shortening control, the control valve starts the control-valve opening operation at an earlier timing than that in the normal control, namely during a course in which a valve body is still in its valve-body closing operation.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 16, 2017
    Assignee: DENSO CORPORATION
    Inventor: Naofumi Adachi
  • Patent number: 9579668
    Abstract: A spray nozzle assembly (10) comprising a cap (30) which houses an inner assembly of nozzle inserts (40). The cap (30) is threadably engaged by complementary threads (31, 21) to a nozzle body (20). The nozzle body (20) and the cap (30) are therefore able to be mated in a controllable axially compressive relationship in which the threadable connection enables a large amount of finely controlled axial tensile or compressive force to be applied in either moving the cap (30) and nozzle body towards each other or away. It should be noted, however, that seat (70) restrict the extent of axial travel of the screwable parts (20, 30, 40) relative to and towards each other. This facility enables strong unwanted adhesive forces of glue-like or set flowable material to be broken so that the cap (30), insert assembly (40) and nozzle body (20) can be moved apart for servicing.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: February 28, 2017
    Assignee: Spray Nozzle Engineering Pty Limited
    Inventors: Sean Morgan, Stuart Morgan
  • Patent number: 9366195
    Abstract: A fuel injection valve injects 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 includes a small displacement actuator and a large displacement actuator. The method includes commanding the small displacement actuator to move the valve member to a first open position corresponding to a first flow area and commanding the large displacement actuator to move the valve member to a second open position corresponding to a second flow area that is larger than the first flow area such that the ratio between the second flow area and the first flow area is at least 15:1. The fuel injection valve can also be operated to alternatively inject two different fuels, one of the fuels being a gaseous fuel and the other one being a liquid fuel.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 14, 2016
    Assignee: WESTPORT POWER INC.
    Inventors: David R. Wager, Gordon P. McTaggart-Cowan, David K. Mumford, Sandeep Munshi
  • Patent number: 9234486
    Abstract: Various methods and systems are provided for a leakage passageway for a fuel injector of a common rail fuel system. In one embodiment, a fuel injector for an engine comprises an injector accumulator, an injector flow limiter valve configured to control a flow of fuel from a common fuel rail and into the injector accumulator, and a leakage passageway coupled between the injector accumulator and an inlet of the injector flow limiter valve, the leakage passageway bypassing the injector flow limiter valve.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: January 12, 2016
    Assignee: General Electric Company
    Inventors: Sumit Kumar Das, Paul Gerard Nistler, Javier Rivera, Muthu Anandhan
  • Patent number: 9194349
    Abstract: The invention relates to a fuel injection arrangement for piston engine comprising at least one fuel injector by means of which fuel may be injected into a combustion chamber of the engine, the fuel injector comprising at least one fuel injection valve arranged to meter the fuel into the combustion chamber, the fuel injection arrangement further comprising an intensifier piston arrangement comprising a piston space and a piston member therein having a first area which is arranged to be effected by a work fluid and which first area at least partially borders a first work space of the intensifier piston arrangement; and the piston member having a second area which at least partially borders a second work space of the intensifier piston arrangement, the second work space being arranged in flow connection with the at least one injection valve of the injector.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 24, 2015
    Assignee: Wärtsilä Finland Oy
    Inventor: Kai Lehtonen
  • Patent number: 9151260
    Abstract: A fuel injection valve that can favorably reduce the film thickness of fuel ejected from an outlet of an injection hole without relying on increase of the fuel pressure, whereby atomization of fuel spray can be favorably promoted, is provided. A fuel passage (16) through which the fuel flows is formed in the interior of the fuel injection valve (10). An injection-hole plate (18) as a member that separates an injection space (20) into which the fuel is injected, from the fuel passage (16), is provided in which a plurality of injection holes (22) for ejecting the fuel from the fuel passage (16) toward the injection space (20) are formed. The injection-hole plate (18), as viewed from the outlet side of the injection hole (22), is formed with an injection-hole outlet-side groove (24) connected to the injection hole (22) in a region (inner wall surface 22b) opposed to a main flow direction of the fuel directed toward the injection hole (22) along an inner wall surface (18a) of the injection-hole plate (18).
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 6, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hisao Suzuki
  • Patent number: 9080538
    Abstract: A jet needle has a front face turned away from an injection opening. An injector assembly has a chamber within the body adjoining the front face, a throttle module arranged in the chamber having a fluid supply chamber being hydraulically coupled to the fluid inlet, a control space hydraulically coupled to the fluid supply chamber via an inlet throttle, and a valve chamber hydraulically coupled to the control space via an outlet throttle for accommodating a valve that is designed to lead fluid into a fluid return line arranged in a control module. There are precisely two sealing edges designed between the throttle module and the injector body and/or the control module by which additional hydraulic couplings of the fluid supply chamber to the control space and the valve chamber are cut off. A third sealing edge is designed between the injector body and the control module.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: July 14, 2015
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Alexander Kuschel
  • Patent number: 9033264
    Abstract: A fuel injector for fuel injection systems of internal combustion engines has a solenoid operable via an electric wire, a valve sleeve in an injection-side area forming an external sheathing of the fuel injector, and a valve housing. The fuel injector has a plastic sleeve, which contains the solenoid and the electric wire and can be pushed onto the valve sleeve.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: May 19, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventor: Hubert Stier
  • Patent number: 9033256
    Abstract: A fuel injector (10) has an inlet (12), an outlet (14), and a passageway (16) providing a fuel flow conduit from the inlet to the outlet. A valve structure (22, 24) is movable in the passageway between first and second positions. A seat (26) is provided at the outlet and has at least one seat passage (28) in communication with the passageway. Movement of the valve structure between the first and second positions controls the flow of fuel through the seat passages. The seat includes an outer tip surface (30) through which the least one seat passage extends. A catalytic coating (32) is provided on at least a portion of the outer tip surface. The coating causes oxidation of fuel on the coating to occur at a temperature lower than if the coating was not provided.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 19, 2015
    Assignee: Continental Automotive Systems, Inc.
    Inventor: William James Imoehl
  • Patent number: 9022303
    Abstract: A fuel injection valve co-injects a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 5, 2015
    Assignee: Westport Power Inc.
    Inventors: David Mumford, Sandeep Munshi
  • Patent number: 9022302
    Abstract: A system includes a gasification feed injector. The gasification feed injector includes a tip portion disposed at a fluid exit region of the gasification feed injector, and a tip cap coupled to the tip portion of the gasification feed injector and configured to serve as a thermal barrier for the tip portion during gasification reactions.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: General Electric Company
    Inventor: Danielle Yarber Archangel
  • Patent number: 9003775
    Abstract: A mounting arrangement for attaching a pump arrangement to an exhaust pipe at a boss includes a delivery nozzle section and a remaining section including a pump body. The mounting arrangement includes a packing for supporting the pump body at the remaining section of the pump arrangement.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 14, 2015
    Assignee: Delphi International Operations Luxembourg S.A.R.L.
    Inventors: Keith E. Wright, Michael Peter Cooke, Phillip D. Thompson, Simon Coster, Nick J. Oldfield, Martin Paul Hardy
  • Patent number: 8998104
    Abstract: An injection valve includes an injector component having an injector body including a recess hydraulically coupled to a high-pressure circuit of a fluid, and a nozzle needle moveably disposed injector body recess for preventing fluid flow through at least one injection opening in a closed position, and otherwise for releasing the fluid flow; an actuator unit disposed in the injector body recess and having an actuator element disposed in an actuator housing including an end face at an axial end facing the injection opening, which end face is mechanically coupled to a stage implemented in the injector body via a ring element disposed axially between the end face and the stage. At least two radial through passages are disposed opposite each other in the ring element, designed for hydraulically coupling between a ring interior disposed within the ring element and a ring exterior disposed outside of the ring element.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: April 7, 2015
    Assignee: Continental Automotive GmbH
    Inventors: Axel Burkhardt, Robert Kuchler, Joachim Wagner, Roland Wild
  • Patent number: 8997720
    Abstract: The present disclosure is directed to a fuel circuit of a fuel injector that includes a first channel, a second channel, and a valve. The first channel is configured to receive a first fuel and define a flow path for the first fuel. The second channel is configured to receive a second fuel and define a flow path for the second fuel. The valve is in fluid communication with the first channel and the second channel. The valve is adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: April 7, 2015
    Assignee: Caterpillar Inc.
    Inventors: Cory A. Brown, Xiangdong Ding, Hoisan Kim, Mayank Mittal, Mark F. Sommars
  • Patent number: 8991783
    Abstract: In a fuel injection valve, it is intended to enhance valve-closing responsivity while maintaining durability (anti wear property) of a collision portion between a stationary core and a movable core and valve-opening responsivity. An annular end face 106A of the movable core 106 in the fuel injection valve is provided with a collision portion 106C that collides to a stationary core 107 when the movable core is magnetically attracted toward the stationary core side and a non-collision portion that keeps a fluid gap between both cores at an area of an outer side or an inner side from the collision portion. The annular end faces of the stationary core and the movable core are coated with platings 30, 31 having anti wear property, and at least one of the platings of the stationary core and the movable core is formed in such a manner that the thickness thereof at the collision portion 106C is to be thicker and the thickness thereof at the non-collision portion is to be thinner.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: March 31, 2015
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Motoyuki Abe, Masahiko Hayatani, Tohru Ishikawa, Takehiko Kowatari, Atsushi Takaoku, Yasuo Namaizawa, Yusuke Irino
  • Patent number: 8967500
    Abstract: An injection hole inlet is disposed at the upstream side face of the injection hole plate in such a way that, assuming that ? denotes the angle between respective lines obtained by vertically projecting a straight line that passes through the center of the injection hole inlet and the center of the valve seat and the major axis of the injection hole inlet onto a perpendicular plane that passes through the center of the injection hole inlet and is perpendicular to the center axis of the valve seat and assuming that ? denotes the angle between respective lines obtained by vertically projecting the straight line that passes through the center of the injection hole inlet and the center of the valve seat and the minor axis of the injection hole inlet onto the perpendicular plane, ?<? is satisfied.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 3, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoya Hashii, Tsuyoshi Munezane
  • Patent number: 8967502
    Abstract: A dual fuel injector may be used to injector both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 3, 2015
    Assignee: Caterpillar Inc.
    Inventors: Hoisan Kim, Mark F. Sommars, Xiangdong Ding
  • Patent number: 8939128
    Abstract: The present invention shows a high-pressure injector having the following assemblies: an injector unit (1), a drive unit (2) for driving the injector unit (1), preferably a high-pressure storage unit (3) for supplying the injector unit (1) with fuel, and a high-pressure connection (4). Provision is made in this respect that the high-pressure injector has a housing (5) in which a plurality of the named assemblies are arranged behind one another in the longitudinal direction of the injector, wherein the housing (5) completely envelops at least one of the named assemblies, in particular the drive unit (2) and/or the high-pressure storage unit (3). The high-pressure injector with the injector unit can be used in all types of internal combustion engines, preferably in diesel engines.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 27, 2015
    Assignee: Liebherr Machines Bulle SA
    Inventors: Richard Pirkl, Edgar Bignion, Wolfram Klemp
  • Patent number: 8905334
    Abstract: A stroke translator or an injector having a solid-state actuator for generating a stroke and a hydraulic system for the hydraulic transmission of the stroke of the solid-state actuator to a control element such as a jet needle of a valve. The hydraulic system has hydraulic volumes hermetically sealed to the outside by metal bellows and constitute a hydraulic bearing with compensation for play. The advantages over known hydraulic levers are such that a complete metal seal is provided, and that a lower-wear design can be realized. Furthermore, a modular structure can be produced.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 9, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Georg Bachmaier, Gerit Ebelsberger, Bernhard Fischer, Matthias Gerlich, Michael Höge, Wolfgang Zöls
  • Patent number: 8864054
    Abstract: The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: October 21, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Matthias Burger, Hans-Christoph Magel
  • Patent number: 8833735
    Abstract: A fuel injection valve (100) for internal combustion engines, having a housing (10) in which a nozzle body (11) is at least indirectly axially clamped against a holding body (15) by means of a clamping nut (18), wherein the clamping nut (18) radially surrounds the nozzle body (11), and wherein a threaded connection (20) between the holding body (15) and the clamping nut (18) is formed between the clamping nut (18) and the holding body (15) in a region which is axially spaced apart from the nozzle body (11). The threaded connection (20) comprises at least two toothing regions (21, 22) which have different threaded dimensions and are arranged axially one behind the other in the longitudinal direction of the housing (10).
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Dietmar Uhlmann
  • Publication number: 20140252108
    Abstract: A needle type fuel injector has a needle control chamber at a pressure subject to a control valve in a control valve chamber which in an opening phase is lifted from its seat to expose the control valve chamber, connecting passages, and needle control chamber to a low pressure drain and in a closing phase is urged against the seat to isolate the control valve chamber, connecting passages, and needle control chamber from the drain. Resistance to the flow or displacement of fuel through the control valve seat is provided by a pressure regulating valve as the control valve rapidly closes against its seat, thereby reducing the rate of closure and thus the impact of the control valve on the seat.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Inventor: Mark S. CAVANAGH
  • Publication number: 20140252109
    Abstract: A needle type fuel injector has a needle control chamber at a pressure subject to a control valve in a control valve chamber which in an opening phase is lifted from its seat to expose the control valve chamber, connecting passage, and needle control chamber to a low pressure drain and in a closing phase is urged against the seat to isolate the control valve chamber, connecting passage, and needle control chamber from the drain. The potential for cavitation at high fuel injection pressure is reduced by throttling the flow of fuel past the control valve seat when the control valve opens, thereby maintaining sufficient back pressure in the control valve chamber and upstream connecting passages.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: Stanadyne Corporation
    Inventor: Stanadyne Corporation
  • Patent number: 8827187
    Abstract: A fuel injection valve includes: a nozzle body provided with an injection hole at a tip portion; a needle that is located slidably in the nozzle body and includes a seat portion seated on a seat position in the nozzle body; and an air bubble generation means generating air bubbles in a fuel flowing through the nozzle body, and when a curvature radius is R, a length of a curve is L and a constant is a, an inner peripheral shape of the injection hole includes a curving part passing through a region surrounded by a clothoid curve which is expressed by R×L=a2 and of which the constant a is 0.95 and an clothoid curve of which the constant a is 1.05 or a region surrounded by approximate curves of the clothoid curves at a cross-section surface along a direction of axis of the injection hole.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tatsuo Kobayashi
  • Publication number: 20140239097
    Abstract: A fuel pump for a fuel system includes a nozzle, a venturi, a pump inlet and a flow controller. The nozzle has an orifice through which fuel is ejected and the venturi is downstream of the nozzle and has an inlet through which fuel discharged from the orifice flows, a passage downstream of the venturi inlet through which fuel flows to create a drop in pressure in the area of the venturi, and an outlet through which fuel is discharged from the venturi. Fuel is drawn through the pump inlet fuel by the drop in the pressure created in the area of the venturi and the flow controller is downstream of the outlet and has a chamber in which fuel from the venturi outlet is received. The flow controller causes fuel to fill the venturi to ensure performance of the fuel pump.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: WALBRO ENGINE MANAGEMENT, L.L.C.
    Inventors: Kenneth J. Cotton, Elton J. Fisch, David D. Hacker, Jeffrey D. Hanby, Kevin L. Israelson, Roger N. Smith
  • Patent number: 8813722
    Abstract: A fuel injector for an internal combustion engine having an elongated body with a fuel inlet end and a fuel discharge end. The injector body includes an outwardly extending plate attached at a position between its ends and this plate includes at least one radially outwardly extending tab so that the cross-sectional shape of the plate is noncircular. A fuel cup receives the fuel inlet end of the fuel injector and includes a radially inwardly extending ledge at a mid position of the cavity. This ledge includes a through bore complementary in shape to the shape of the plate so that, with the fuel injector and plate aligned at a predetermined angular assembly position, the plate passes through the ledge upon insertion of the fuel injector into the cavity. Thereafter, rotation of the fuel injector and attached plate to a locking position positions the tabs above the ledge thus locking the fuel injector to the fuel cup.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 26, 2014
    Assignee: Hitachi Automotive Products (USA)
    Inventors: William T. Harvey, Steven J. Miller, Hiroaki Saeki
  • Patent number: 8800895
    Abstract: An improved fuel injection apparatus and method have a variable area injector arrangement in which a pintle defines a pilot orifice extending through a tip of the pintle for supplying a pilot flow of fuel through the fuel injector at low fuel pressures, and in particular when the pintle tip is sealed against a variable flow orifice of the variable area injector arrangement.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: August 12, 2014
    Assignee: Woodward, Inc.
    Inventors: Paul G. Hicks, Robert J. Pederson
  • Patent number: 8794549
    Abstract: A fuel injection valve of an internal combustion engine includes a measuring plate that has at least one injection hole. Fuel that has flowed along an inner wall surface of the measuring plate flows into the injection hole through an injection hole entrance that is formed in the inner wall surface of the measuring plate, passes through the injection hole, and is injected through an injection hole exit that is formed in an outer wall surface of the measuring plate. A recess is formed from an injection hole entrance rim to an injection hole exit rim in an upstream section of the inner wall surface of the injection hole in a fuel flow direction along the inner wall surface of the measuring plate.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: August 5, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Sakai
  • Patent number: 8783586
    Abstract: A hole axis of a communication hole is placed at a location, which coincides with a translated location of a hole axis of a connector hole that is translated toward an axial distal end portion of a main body in an axial direction of the main body. In this way, with respect to a high pressure flow passage, which is bent by 90 degrees and extends through the connector hole, the communication hole and an axial flow passage, the amount of projection of a projecting portion at an inner side area of this bent, which is located on the inner side of the bent, is reduced.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: July 22, 2014
    Assignee: Denso Corporation
    Inventors: Daisuke Kashiwagi, Tomoyuki Tsuda
  • Patent number: 8777130
    Abstract: The present invention relates to a fuel injector configuration that treats a dielectric fluid such as gasoline fuel with strong electric and, optionally, magnetic fields to form a homogeneous charged fuel or fuel/air mixture for combustion in an internal combustion engine. The electric field is supplied by a triboelectric dipole and the magnetic field is supplied by permanent magnets. Small charged fuel particles are produced and combust more readily than untreated particles. Fuel efficiency is increased and emissions are reduced.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: July 15, 2014
    Assignee: Ronnell Company, Inc.
    Inventor: Ronald A. Tamol
  • Patent number: 8756813
    Abstract: A method of remanufacturing an injector involves an original lead extending from an overmold block. A milling cutter is used to mill a cavity into the overmold block to provide access to the original lead. The milling cutter splits the original lead into a remainder portion and a discard portion. A replacement lead is inserted into the overmold block to overlap with the remainder portion, and the overlapping leads are soldered to each other. The exposed overlap area is encapsulated with filling material. The original lead is preferably cut such that a tip of the remainder portion is angled, pointed, or otherwise shaped to increase the surface area that is exposed at the tip. The increased exposed surface area increases the area over which the replacement lead and the remainder portion make contact with each other when overlapping. Greater contact between the soldered leads strengthens their connection.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 24, 2014
    Assignee: Diesel Forward, Inc.
    Inventors: William Joseph Rutecki, Randall Clare Harkema, Thomas Edwin Earhart, Todd Foote
  • Patent number: 8740108
    Abstract: In this system, a device is placed inside the injectors on the manifold or inside three different design housings above the combustion chambers of engines. The device is a combine that has a cylinder that has a set of vanes. In one embodiment a small motor is used to turn the cylinder, which helps to atomize the fuel to a fine state. This atomization improves combustion in that the smaller fuel particles can burn more efficiently and more completely than larger drops of fuel that is simply squirted into a cylinder or manifold. In two other embodiments, the cylinder (combine) can be turned with a belt driven by the engine.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 3, 2014
    Inventor: David Caughran
  • Publication number: 20140117118
    Abstract: A feedthrough device includes first and second opposing outer end faces. The feedthrough device includes an opening, between the first and second opposing outer end faces, that allows fluid communication between an interior and an exterior of the feedthrough device. A conductor extends through the feedthrough device from the first end face, through the interior, to the second end face.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Inventors: Roger M. Kifer, Steven A. DeHerrera, Gregory J. Brodsack, Timothy J. Farrow
  • Patent number: 8708250
    Abstract: A fuel injection device includes a cylinder that defines a pressure chamber at an end portion of a nozzle needle. A floating plate as a control member is placed in the cylinder. A cutout portion and multiple grooves are formed in the floating plate. The cutout portion and the grooves causes a gap between a large-diameter inner circumferential surface and an outer circumferential surface to communicate with the pressure chamber. The cutout portion and the grooves reduce a contact surface portion between the cylinder and the floating plate and divide the contact surface portion into multiple island portions. As a result, it is possible to reduce the contact surface portion.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: April 29, 2014
    Assignee: Denso Corporation
    Inventors: Tsukasa Yamashita, Naofumi Adachi
  • Patent number: 8695892
    Abstract: In a fuel injection device, a control body has a pressure control chamber, an inflow port and an outflow port. The inflow port and the outflow port are opened at an abutting surface exposed to the pressure control chamber. In the pressure control chamber is arranged a floating plate for pressing the abutting surface by a pressing surface with the pressure of the fuel to interrupt communication between the inflow port and the pressure control chamber. The abutting surface of the control body is provided with an outer opposite surface portion opposite to an outer edge of the pressing surface in a displacement axis direction of the floating plate, and the outer opposite surface portion has a special depressed portion that is depressed in the displacement axis direction and that extends along the shape of the outer edge of the pressing surface.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: April 15, 2014
    Assignee: Denso Corporation
    Inventors: Yoichi Kobane, Shuichi Matsumoto, Naofumi Adachi, Tsukasa Yamashita, Fumihiro Fujikake
  • Patent number: 8695899
    Abstract: A fuel injector has a housing with a central longitudinal axis having a first cavity and may be coupled to a fuel rail having a fluid inlet portion and outlet portion. The fuel injector has a valve needle arranged at least partly within the housing axially movable in the first cavity facing the fluid outlet portion, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing it through the fluid outlet portion in further positions. The fuel injector has a spring arranged within the first cavity for exerting a spring force on the valve needle along the central longitudinal axis for preventing the fluid flow through the fluid outlet portion. Additionally, the fuel injector has an adjusting element for adjusting an axial position regarding the central longitudinal axis of a spring rest depending on a pressure acting on the adjusting element.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: April 15, 2014
    Assignee: Continental Automotive GmbH
    Inventor: Marco Maragliulo
  • Patent number: 8690082
    Abstract: An LPI injector includes an injector body that is supplied with fuel from the upper portion and injects the fuel down, an icing tube of which the upper end is coupled to the lower portion of the injector body and that injects the fuel inside the injector body through a fuel injection channel therein, a valve seat disposed between the injector body and the icing tube and fitted in the lower portion of the injector body, having an injection hole to inject the fuel and a tube-fastening groove fitted on the icing tube around the injection hole, and a ball valve that is seated at the injector body of the valve seat and opens/closes the injection hole.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 8, 2014
    Assignee: Hyundai Motor Company
    Inventor: Jinoh Song
  • Patent number: 8672234
    Abstract: A fuel atomizer that includes a housing having a fuel inlet and at least one primary orifice positioned at the inlet, wherein the at least one orifice configured to disperse a stream of fuel into a plurality of fuel droplets. The plurality of fuel droplets contact a fuel impingement surface to break up the plurality of fuel droplets into a plurality of smaller secondary droplets and create a thin film of secondary droplets on the impingement surface. At least one pressurized air channel delivers an airflow into contact with the secondary droplets. The secondary droplets pass through a plurality of secondary outlet orifices to exit the housing. A size of the plurality of secondary droplets is reduced when passing out of the plurality of secondary orifices.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 18, 2014
    Assignee: Enginetics, LLC
    Inventors: John Amaya, Luke Cruff, Joseph Lull, Marcel Prado, Bradley J. Vieau
  • Publication number: 20140061327
    Abstract: A system for staging fuel to a combustor includes a fuel manifold with a plurality of valves. At least one fuel circuit provides fluid communication between the fuel manifold and a first set of fuel nozzles. A flow distribution valve is fluidly connected to one of the at least one fuel circuits between the fuel manifold and the first set of fuel nozzles. The flow distribution valve includes an inlet and at least two outlets.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Michael John Hughes
  • Patent number: 8662411
    Abstract: A fuel injection valve includes a nozzle needle interacting with a valve seat by longitudinal movements thereof, thus opening/closing an injection opening. The nozzle needle undergoes a locking force toward the valve seat pressure in a control space. A control valve adjusts pressure in the control space. The control valve has a control valve space connected to the control space, in which a control valve member is disposed longitudinally movably, and opens and closes a connection of the control valve space to a leakage oil space by longitudinal movement. The control valve member is surrounded by pressure in the control valve space and configured such that no or very little resulting hydraulic force acts upon the control valve member in the movement direction by the pressure in the control space, if the control valve member closes the connection of the control valve space to the leakage oil space.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: March 4, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Gruenberger
  • Patent number: 8657213
    Abstract: A plate convex is formed on the upstream side of the injection hole plate and a plate concave is formed on the downstream side of the injection hole plate so as to form a pair together, a minimum of one set of the plate convexes and the plate concaves are formed, and the injection holes are arranged so that the radial centerline which connects the centerline of the plate convex from the axial center of the fuel injection valve does not overlap the center of the injection hole on an upstream flat surface of the injection hole plate, and the plate convex is arranged so as to straddle the injection hole on the upstream flat surface of the injection hole plate, and the top surface of the plate convex.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: February 25, 2014
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukitaka Sakata, Naoya Hashii, Tsuyoshi Munezane