Combustion Chamber Means Having Fuel Injection Only Patents (Class 123/294)
  • Patent number: 10480456
    Abstract: A gas injector for injecting a gaseous fuel, in particular directly into a combustion chamber of an internal combustion engine, including: a valve closing element for opening or closing a pass-through opening, a valve body, and a sealing seat between the valve body and the valve closing element, in the case of a maximum lift of the valve closing element a flow cross section between the valve body and the valve closing element being smaller in the flow direction upstream from the sealing seat than a flow cross section between the valve closing element and the sealing seat and being smaller than a flow cross section in the flow direction downstream from the sealing seat.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 19, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Friedrich Moser, Guenther Hohl, Michael Knorpp, Olaf Schoenrock, Sven Krissler
  • Patent number: 10450992
    Abstract: In a hybrid fuel supply system for the same high pressure supply pump used for gasoline direct injection (DI) is also used to supply the port injection (PI) system. For a given pumping stroke, fuel can be delivered only to the DI system, only to the PI system, or a first portion can be delivered to the DI system and a second portion delivered to the PI system. The pumping chamber always fills to maximum volume. Fuel metering for DI is by a control valve, which when closed delivers fuel into the DI system and when opened “spills” pumped fuel into the PI system. Any “spill” at high pressure opens a pressure regulating valve in the PI system that dumps fuel at excess pressure to a low pressure region to maintain the PI system at a constant target pressure.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 22, 2019
    Assignee: Stanadyne LLC
    Inventor: Richard Paulo Pellini
  • Patent number: 10428725
    Abstract: Systems and methods are provided for cooling an overheated engine using a combination of variable displacement engine (VDE) technology and direct injection technology. In one example, a method may include deactivating a subset of engine cylinders based on an engine temperature and directly injecting liquid fuel into the deactivated cylinders. In this way, an increased thermal conductivity of the liquid fuel compared to air decreases the engine temperature at a faster rate than when air-based engine cooling methods are used, thereby preventing overheating-related engine degradation.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 1, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • Patent number: 10328924
    Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, the engine system may be installed in a hybrid vehicle, and, in response to a request to restart the engine while the vehicle is being propelled via motor torque only, the engine may be rotated unfueled via the motor torque at less than cranking speed while at least partially opening a valve disposed in a passage coupled between the first exhaust manifold and the intake passage. In another example, in response to the request to restart the engine, all exhaust valves of a second set of exhaust valves coupled to the second exhaust manifold may be deactivated.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 25, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, John D. Russell, Michael Howard Shelby
  • Patent number: 10302023
    Abstract: A method for carrying out a gas exchange in a cylinder of an internal combustion engine is provided. The cylinder is connected to a gas line section via a valve. An actuator adjusts a gas pressure in the gas line section. The valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine. The method includes the steps of recognizing a torque change request; determining a target value for the gas pressure in the gas line section in dependence on the torque change request; and determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 28, 2019
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: René Kleinhans, Stefan Klie, Maiko Garwon, Robert Beckmann
  • Patent number: 10145328
    Abstract: After a system-off state has continued for a preset, time period since a system-off operation, on satisfaction of abnormality diagnosis prerequisites including a condition that a warm-up determination parameter indicating a degree of warm-up of an engine at a system-off time is equal to or greater than a predetermined value, characteristic abnormality diagnosis is performed to determine whether a characteristic abnormality occurs in a fuel pressure sensor. For a time period from a system-on operation to a system-off operation, the warm-up determination parameter is incremented when the engine is in operation, while being decremented after satisfaction of a predetermined condition when the engine is not in operation.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: December 4, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Ohori, Junji Hyodo
  • Patent number: 10113492
    Abstract: An engine having at least a primary and secondary fuel supplies is configured to operate by determining a fueling mode for each of first and second groupings of cylinders, independently. A method, therefore, for operating the engine includes monitoring engine operating parameters with an electronic controller, determining an engine operating point based on the engine operating parameters, calculating a first operating mode of a first cylinder grouping based on the engine operating point, calculating a second operating mode of a second cylinder grouping based on the engine operating point, and selectively activating at least one of a diesel injector, a gaseous fuel injector and a spark device in each engine cylinder separately and selectively for each cylinder of the first and second cylinder grouping based on the engine operating point.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: October 30, 2018
    Assignee: Caterpillar Inc.
    Inventor: Scott B. Fiveland
  • Patent number: 10107219
    Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gary Alan Coulson, Steven Wooldridge, Gopichandra Surnilla
  • Patent number: 10087065
    Abstract: A distribution station includes a mobile trailer, a pump on the mobile trailer, a manifold on the mobile trailer and fluidly connected with the pump, a plurality of hoses connected with the manifold, a plurality of valves, each of the valves situated between the manifold and a respective one of the hoses, a plurality of fluid level sensors, each of the fluid level sensors being situated at an end of a respective one of the hoses, and a plurality of sensor communication lines. Each of the sensor communication lines is connected or connectable with a respective one of the fluid level sensors. Each of the sensor communication lines is routed with a respective one of the hoses.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: October 2, 2018
    Assignee: FUEL AUTOMATION STATION, LLC
    Inventor: Ricky Dean Shock
  • Patent number: 10012178
    Abstract: An injector, in particular a blow-in injector for gaseous fuel, including a first sealing element and a second sealing element, and in the closed state of the injector a first sealing region is configured between the first and second sealing element, at least one of the sealing elements having an elastic deformation region, the elastic deformation region being set apart from the sealing region between the first and second sealing element.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 3, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Martin Mueller, Sven Krissler, Olaf Schoenrock, Hagen Kuckert, Andreas Vogt
  • Patent number: 10012194
    Abstract: In the interior of a resin mold portion that constitutes a fuel injection valve, an amplifying member to which a power source terminal and a signal terminal are connected, is provided. A signal transmitting unit, which outputs a detection signal from a sensor, is connected electrically to a substrate of the amplifying member. Further, the amplifying member is molded integrally when the resin mold portion is formed. In addition, a pressure inside a combustion chamber of an internal combustion engine, which is detected by the sensor, is output through the signal transmitting unit to the amplifying member, is amplified by the amplifying member, and is output externally from the signal terminal.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 3, 2018
    Assignee: KEIHIN CORPORATION
    Inventors: Gaku Sato, Keisuke Machida, Kenichi Yoshimura, Koji Suzuki
  • Patent number: 9981840
    Abstract: A distribution station includes a mobile trailer, a pump on the mobile trailer, a manifold on the mobile trailer and fluidly connected with the pump, a plurality of hoses connected with the manifold, a plurality of valves, each of the valves situated between the manifold and a respective one of the hoses, a plurality of fluid level sensors, each of the fluid level sensors being situated at an end of a respective one of the hoses, and a plurality of sensor communication lines. Each of the sensor communication lines is connected or connectable with a respective one of the fluid level sensors. Each of the sensor communication lines is routed with a respective one of the hoses.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: May 29, 2018
    Assignee: FUEL AUTOMATION STATION, LLC
    Inventor: Ricky Dean Shock
  • Patent number: 9976510
    Abstract: A fuel injection control apparatus for an internal combustion engine having cylinders each of which includes a fuel injection valve and an intake valve, includes an intake valve controller, a parameter acquiring device, and an injection quantity correcting device. The intake valve controller performs an effective-compression-ratio reducing operation. The parameter acquiring device acquires a correction parameter including at least one of a rotational speed of the internal combustion engine, the valve closing timing of the intake valve, and an intake parameter indicating an intake fresh air amount flowing into the cylinders through an intake system. The injection quantity correcting device corrects a fuel injection quantity for the fuel injection valve in accordance with the acquired correction parameter to suppress variations among air/fuel ratios of air fuel mixtures in the cylinders while the intake valve controller performs the effective-compression-ratio reducing operation.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: May 22, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shohei Yamashita, Tadashi Kurotani
  • Patent number: 9909513
    Abstract: A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.
    Type: Grant
    Filed: December 14, 2014
    Date of Patent: March 6, 2018
    Assignees: WESTPORT POWER INC., GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Raymond Bzymek, Mark E. Dunn, Ning Wu, Dehong Zhang, Craig D. Marriott, Joshua D. Cowgill, Ben W. Moscherosch
  • Patent number: 9903305
    Abstract: A control device for an internal combustion engine is provided which can stabilize behavior when a fuel injection valve is opened, and reduce a variation in the amount of fuel injection of the fuel injection valve.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 27, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Osamu Mukaihara, Masahiro Toyohara
  • Patent number: 9885295
    Abstract: A heat generation rate waveform of an internal combustion engine. A period from spark generated by an ignition plug to ignition of an air-fuel mixture is defined as an ignition delay period ? that is one of characteristic values of the heat generation rate waveform. When the ignition time FA of the air-fuel mixture is on the advance side of a compression top dead center of a piston (BTDC), the ignition delay period ? is estimated based on an in-cylinder fuel density ?fuel@SA at the spark time SA, and when the ignition time FA of the air-fuel mixture is on the delay side of the compression top dead center of the piston (ATDC), the ignition delay period ? is estimated based on an in-cylinder fuel density ?fuel@FA at the ignition time FA. Thus, the heat generation rate waveform is produced using the estimated ignition delay period ?.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Munenori Imaeda
  • Patent number: 9804012
    Abstract: The vehicle traveling information recording device of the present invention comprises a camera unit for acquiring image information relating to outside of a vehicle; a recording unit for recording the image information from the camera unit; an abnormality detection unit for detecting an abnormal vehicle state; an auxiliary data detection unit for acquiring auxiliary data when the abnormality detection unit has detected an abnormality; and a control unit for combining the auxiliary data with the image information in the recording unit when the abnormality detection unit has detected the abnormality, and recording image information after the combination related to abnormality detection.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: October 31, 2017
    Assignee: Rohm Co., Ltd.
    Inventors: Kyoji Marumoto, Masahide Tanaka
  • Patent number: 9689307
    Abstract: An internal combustion engine, including a combustion chamber with a first aperture; a compression chamber with a second aperture; and a crossover valve comprising an internal chamber, first and second valve seats, a valve head, and first and second valve faces on the valve head, wherein the first aperture allows fluid communication between the combustion chamber and the internal chamber, the second aperture allows fluid communication between the compression chamber and the internal chamber, the first valve face couples to the first valve seat to occlude the first aperture, and the second valve face couples to the second valve seat to occlude the second aperture.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: June 27, 2017
    Assignee: Tour Engine, Inc.
    Inventors: Hugo Benjamin Tour, Oded Tour, Gilad Tour
  • Patent number: 9631581
    Abstract: An engine system is disclosed. The engine system may have a first bank of cylinders, a second bank of cylinders, a first intake manifold, and a second intake manifold. The engine system may also have a first exhaust manifold connecting the first bank of cylinders to the first and second intake manifolds, a second exhaust manifold connecting the second bank of cylinders to the atmosphere, a plurality of injectors, and a controller. The controller may be configured to inhibit the plurality of injectors associated with a first cylinder subset of the first and second banks of cylinders from firing for a first period of time spanning multiple engine cycles. The controller may also be configured to selectively inhibit the plurality of injectors associated with a second cylinder subset of the first and second banks of cylinders from firing for a second period of time following the first period of time.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: April 25, 2017
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Reddy Pocha Siva Sankara, Michael B. Goetzke, LeBlanc Martin, Travis Eugene Barnes, Nathan Michael McDonald, Leeder Hua
  • Patent number: 9617947
    Abstract: A waveform detector detects a variation in fuel pressure based on a detection value of a fuel pressure sensor as a fuel pressure waveform. A determining portion determines whether an interval between injections is zero or smaller than a predetermined value based on the detected fuel pressure waveform when multi-step-injection is performed. A correcting portion corrects an injection command signal indicative of an injection start timing and an injection end timing corresponding to a target injection state in a manner that the interval is increased when the interval is determined to be zero or smaller than the predetermined value.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: April 11, 2017
    Assignee: DENSO CORPORATION
    Inventor: Naoyuki Yamada
  • Patent number: 9611981
    Abstract: Various methods and systems are provided for supplying gaseous natural gas to a rail vehicle. In one embodiment, a method of receiving fuel for use by a first vehicle comprises sending a request from the first vehicle to a remote liquid fuel container to convert a portion of the fuel in the liquid fuel container that is in a first, liquid phase from the first, liquid phase to a second, gaseous phase.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: April 4, 2017
    Assignee: General Electric Corporation
    Inventors: Ronald Gene Billig, Taral Shah
  • Patent number: 9562503
    Abstract: In a nozzle, in a cross section including an axis of a nozzle body, a side surface and a seat surface are both smoothly connected to an arc of a circle inscribing both the side surface and the seat surface. A part of a needle which is adjacent to a tip end side of a seat portion is a cone having a diameter reduced toward a tip end side of the cone in the axial direction. Thus, no corner is on the seat surface or the side surface, and the two surfaces form one curved surface. Since a cavitation generated in a sack chamber can be reduced, even when an injection quantity is significantly small such that an injection port does not throttle an injection flow, a flow coefficient of the injection flow is improved and a penetration of a spray of the fuel can be maintained.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: February 7, 2017
    Assignee: DENSO CORPORATION
    Inventors: Toshiaki Hijima, Fumiaki Arikawa, Motoya Kanbara, Yuuta Hashimoto, Atsushi Utsunomiya, Kazufumi Serizawa, Shinya Sano
  • Patent number: 9518486
    Abstract: A method for operating an internal combustion engine involves using an injection valve to post-inject fuel into at least one cylinder of the internal combustion engine in order to help regenerate a particulate filter that is arranged in an exhaust system of the internal combustion engine, downstream of an oxidation catalyst. A closing moment of a discharge valve of a cylinder of the internal combustion engine is advanced when the temperature of the oxidation catalyst is in a first temperature range, and the post-injections are performed when the temperature of the oxidation catalyst is in a second temperature range, an upper limit of the first temperature range having a lower value that an upper limit of the second temperature range.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: December 13, 2016
    Assignee: Daimler AG
    Inventors: Thomas Koch, Alexander Massner, Frank Zimmermann, Herbert Zoeller
  • Patent number: 9482174
    Abstract: A method for controlling an internal combustion engine based on the amount of un-burned fuel dissolved in the engine oil, and returned into the manifold through the PCV valve as the engine oil temperature rises via adjusting fuel injection into a cylinder from a fuel injector, in a fuel delivery system. The fuel dilution in engine oil and the amount of fuel entering the intake manifold through the PCV valve can be determined based on one or more of oil volume, fuel composition (e.g., ethanol content), oil temperature, engine temperature, engine speed, engine load, engine run time, injected fuel mass, and exhaust gas composition.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: November 1, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Michael DeAngelis, Michael Ryan Scannell, Gregory Blin, Rama Sanghvi, Joseph Lyle Thomas
  • Patent number: 9429097
    Abstract: Methods are provided for controlling a solenoid spill valve of a direct injection fuel pump, wherein the solenoid spill valve is energized and de-energized according to certain conditions. An example control strategy is provided for operating the direct injection fuel pump when fuel vapor is detected at an inlet of the direct injection fuel pump. To ensure pump effectiveness during the presence of fuel vapor, the solenoid spill valve may be maintained energized for a minimum angular duration past a top-dead-center position of a piston in the direct injection fuel pump.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 30, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9382834
    Abstract: An operating mode for an internal combustion engine, in particular a directly injected internal combustion engine having a plurality of combustion chambers, in particular for a directly injected gasoline engine, e.g. for a motor vehicle, having low NOx combustion (NAV). During the NAV operating mode that is the subject matter of this invention, at an ignition point (ZZP) a largely homogeneous, lean fuel/exhaust gas/air mixture having a combustion air ratio of ??1 in the respective combustion chamber is spark ignited by an ignition device, whereby the flame front combustion initiated by the ignition device (FFV) transitions to a controlled auto-ignition (RZV). The NAV operating mode enables a controlled auto-ignition to be performed in an engine load range in which a pure RZV operating mode is no longer stable enough to be implemented.
    Type: Grant
    Filed: April 6, 2013
    Date of Patent: July 5, 2016
    Assignee: DAIMLER AG
    Inventors: Torsten Dieler, Dirk Haase, Ruediger Herweg
  • Patent number: 9353700
    Abstract: A method for operating a hybrid drive train involves operating an internal combustion engine using a low-NOx operating method in a range of low and average rotational speeds and/or loads, and operating the internal combustion engine using a spark ignition operating method in a range of higher rotational speeds and/or loads.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: May 31, 2016
    Assignee: Daimler AG
    Inventors: Torsten Dieler, Dirk Haase, Ruediger Herweg, Gerd Kroener, Friedemann Wolpers
  • Patent number: 9321467
    Abstract: A fuel assembly and a method of providing fuel is disclosed. The fuel assembly includes a frame, a first fuel storage tank sized to fit within the frame and configured to store one of a liquid and a gaseous fuel, and a fuel control assembly configured to regulate delivery of the gaseous fuel to an external power unit. The fuel control assembly includes a first fuel assembly memory module having stored thereon identifying information of the interchangeable fuel assembly.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: April 26, 2016
    Assignee: Bright Energy Storage Technologies, LLP
    Inventors: Scott Raymond Frazier, Kevin Pykkonen, Karl Ginter, Jeffrey Orion Pritchard
  • Patent number: 9228493
    Abstract: A heat shield structure includes an engine body having an exhaust manifold at its side portion, a fuel pump arranged above the engine body, and an engine cover. The engine cover includes a covering portion and a heat shield portion. The covering portion covers the fuel pump and the engine body from above. The heat shield portion protrudes downward from the covering portion. The heat shield portion partitions a space above the engine body and a space above the exhaust manifold from each other. The engine cover has an air guide passage between the engine body and the covering portion, the air guide passage extending from a front side of a vehicle toward the fuel pump.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: January 5, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryoji Tachibana, Kenji Yamanari
  • Publication number: 20150144094
    Abstract: The present disclosure is directed to injectors with integrated igniters providing efficient injection, ignition, and complete combustion of various types of fuels. These integrated injectors/igniters can include, for example, multiple drivers used to shape charges, controllers used to modify operations based on ionization parameters, and so on.
    Type: Application
    Filed: October 6, 2014
    Publication date: May 28, 2015
    Inventor: Roy Edward McAlister
  • Publication number: 20150144093
    Abstract: A control device for direct injection gasoline engines includes a fuel injection control part (engine control device) composed to control a fuel injection aspect of an injector. The fuel injection control part changes an injection mode of the injector by changing the lift amount of the injector and the injection interval of the fuel respectively. The fuel injection control part switches between a first injection mode, which includes multiple times of the fuel injection with the small lift amount of the injector and the small interval of the fuel injection, and a second injection mode, which includes multiple times of the fuel injection with the bigger lift amount of the injector and the larger interval of the fuel injection than those of the first injection mode, according to an operating state of the engine body.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 28, 2015
    Inventors: Yuji Harada, Tatsuya Tanaka, Masatoshi Seto, Hiroyuki Yamashita, Tsugio Fukube
  • Publication number: 20150136069
    Abstract: An internal combustion engine having two banks of four piston and cylinder assemblies arranged in an inverted V configuration so that there are four pairs of assemblies each pair having cylinders with adjacent combustion chambers intercommunicated by a passage extending therebetween. Crank shaft driven pistons in said cylinders movable within the combustion chambers thereof through successive cycles each including a compression stroke followed immediately by a power drive stroke. Computer controlled fuel injectors are capable of being selectively controlled to operate either to inject fuel into (1) both cylinders of a pair to establish therein a double fire single expansion mode, or (2) into only one cylinder of a pair to establish therein a single fire double expansion mode with the one cylinder receiving the injection being alternated between the pair every predetermined number of piston cycles.
    Type: Application
    Filed: May 30, 2014
    Publication date: May 21, 2015
    Inventor: Raymond F. LIPPITT
  • Publication number: 20150136070
    Abstract: A control apparatus for an internal combustion engine is capable of switching a combustion mode between a spark ignition combustion mode for combusting a mixture formed in a combustion chamber with spark ignition and a compression ignition combustion mode for combusting the mixture with compression ignition. When the combustion mode is switched from the spark ignition combustion mode to the compression ignition combustion mode, in an internal EGR control for keeping a part of a burnt gas generated by the combustion remaining as an internal EGR in the combustion chamber, an internal EGR amount of the internal EGR is increased, an ignition timing is advanced, and a fuel injection amount is decreased so that an oxygen density contained in the internal EGR used to form the mixture increases.
    Type: Application
    Filed: July 28, 2014
    Publication date: May 21, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuhei MATSUSHIMA
  • Publication number: 20150142291
    Abstract: An internal combustion engine having six in-line piston and cylinder assemblies providing a center pair, an intermediate pair and an outer pair, each pair having crankshaft connected pistons mounted in cylinders through simultaneous repetitive strokes four of which together constitute simultaneous repetitive cycles including a drive event injectors selectively (1) in a (Mode 1) to inject fuel in both cylinders and (2) in a (Mode 2) to inject fuel in only one cylinder, the cylinders of the center pair being intercommunicated by a passage. The effect of skipping an injection in (Mode 2) in the center pair is a pair of shared power drive events and in the other pairs the effect in one of the cylinders is a directly fired power drive shaft and the effect in the other cylinder is deactivation and a method of operating the engine in a vehicle.
    Type: Application
    Filed: December 12, 2014
    Publication date: May 21, 2015
    Inventors: Raymond F. Lippitt, Guy M. Mason
  • Publication number: 20150142296
    Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventors: Michael Tobergte, Carsten Weber, Kay Hohenboeken, Helmut Hans Ruhland, Bert Pingen
  • Publication number: 20150136071
    Abstract: Systems and methods are disclosed that include operating an isothermal compression based combustion (IsoC) engine by injecting isothermally compressed air into a combustion engine immediately prior to a combustion event in order to increase the efficiency of the engine, improve emissions, and substantially eliminate autoignition and associated design constraints. The IsoC engine utilizes an intercooled compressor to isothermally compress air that is stored in a plurality of capacitance tanks prior to delivery of the compressed air to the combustion engine. The IsoC engine allows combustion to be selectively terminated to increase fuel efficiency, thereby resulting in a hybrid compressed air-motor and internal combustion operated IsoC engine.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventor: Richard W. Dortch, JR.
  • Publication number: 20150128901
    Abstract: An engine having two or more fuel injectors is disclosed, where at least one of the injectors is used to port fuel inject fuel into the cylinder when the air intake valve is open. The open valve port fuel injector is used to inject a fuel that has alcohol as a constituent and is the same fuel injected by another fuel injector. In other embodiments, the open valve fuel injector is used to inject an anti-knock fuel containing alcohol while a primary fuel, is introduced by another injector. The operation of the open valve fuel injector can be optimized to maximize the vaporization cooling. In other embodiments, the open valve fuel injector may be used in conjunction with direct injection of the primary fuel or the anti-knock fuel. Heavy EGR can be optimally used with the various embodiments.
    Type: Application
    Filed: January 19, 2015
    Publication date: May 14, 2015
    Inventors: Daniel R. Cohn, Leslie Bromberg
  • Publication number: 20150128899
    Abstract: A piston for an internal combustion engine includes a piston body having an outer cylindrical surface defining a longitudinal piston axis, a combustion face defining a compound combustion bowl, and a compound rim extending radially outward from the compound combustion bowl to the outer cylindrical surface. The compound combustion bowl includes a convex inner bowl surface defining a conical projection and a concave outer bowl surface. The compound rim includes a flat outer rim surface adjoining the outer cylindrical surface, and a convex inner rim surface adjoining the compound combustion bowl. The convex inner bowl surface transitions smoothly to the concave outer bowl surface, and the convex inner rim surface transitions abruptly to the concave outer bowl surface at an edge of the compound combustion bowl.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Applicant: Caterpillar Inc.
    Inventors: William L. Easley, David A. Pierpont, Karthikeyan C. Venkatasubramaniam, John P. Timmons
  • Publication number: 20150114339
    Abstract: A method for starting a compression ignition engine having at least one cylinder with a reciprocating piston located therein, an intake valve configured to control the intake of air to an intake port of the cylinder and an exhaust valve configured to control the expulsion of gas from an exhaust port of the cylinder. The method includes the steps of: cranking the engine, conditioning intake air at the intake port of the cylinder to raise the temperature of air in the cylinder, controlling a valve timing the intake valve and/or the exhaust valve to allow the piston to compress the air within the cylinder, thereby increasing the temperature of the air within the cylinder, and injecting fuel into the cylinder when the air within the cylinder has been heated to a temperature sufficient to support compression ignition of a gasoline and air mixture within the cylinder.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: MARK C. SELLNAU, GREGORY THOMAS ROTH
  • Publication number: 20150114340
    Abstract: When the starting timing of an NVO period exists at the delayed-angle side of the starting timing of a first NVO period, fuel injection into a cylinder is not started; when the starting timing of an NVO period exists between the starting timing of the first NVO period and the starting timing of the second NVO period, fuel injection into the cylinder is started at a given timing that includes the exhaust top death center; when the starting timing of an NVO period exists between the starting timing of the second NVO period and the starting timing of the third NVO period, fuel injection into the cylinder is started at a given timing that does not include the exhaust top death center, and that exists at both the advanced-angle and delayed-angle sides of the exhaust top death center.
    Type: Application
    Filed: April 2, 2014
    Publication date: April 30, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshikatsu SAITO, Yuhei MATSUSHIMA
  • Publication number: 20150107548
    Abstract: A sealing system comprising a cylinder head, a coupler, a fuel injector line, a seal retainer, and a seal. The coupler is positioned in the cylinder head, and the fuel injector line extends into the coupler so as to at least partially define a fuel leak passageway therebetween. The seal retainer yieldably urges the seal towards a seated position in which the seal established a sealed connection between the fuel injector line and the coupler, so as to block ingress of moisture into the fuel leak passageway. Further, the seal retainer allows movement of the seal away from the seated position to an unseated position in which the sealed connection between the fuel injector line and the coupler is broken in response to pressurized leaked fuel, in the fuel leak passageway, so as to allow the pressurized leaked fuel to flow out of the fuel leak passageway.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Applicant: DEERE & COMPANY
    Inventors: ARPITA DUGAD, UMESH A. TOL, PAUL M. WYNTHEIN
  • Publication number: 20150101564
    Abstract: Methods and systems are provided for correcting an EGR rate determined based on an intake manifold oxygen sensor based on an air-fuel ratio of EGR. The output of the sensor is corrected to compensate for extra fuel in rich EGR or extra air in lean EGR and used to reliably estimate the EGR rate. One or more engine operating parameters are adjusted based on an uncorrected output of the sensor.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Timothy Joseph Clark, James Alfred Hilditch, Matthew John Gerhart
  • Publication number: 20150096529
    Abstract: The present invention relates to a cold start-up system of an internal combustion engine for an engine burning gasoline, ethanol or a mixture of fuels, composed or not of a preponderant fraction of ethanol, which comprises at least one strategy of pre-injection of fuel through at least one injection nozzle, before activation of the starter motor, or during activation, in an asynchronous manner.
    Type: Application
    Filed: February 26, 2013
    Publication date: April 9, 2015
    Inventors: Ivan Sanches Provase, Marcos Oliveira, Alexandre Rezende
  • Publication number: 20150096528
    Abstract: A fuel soluble additive for a diesel engine, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for a diesel engine. The fuel soluble additive includes a quaternary ammonium salt derived from the reaction of (a) a hydrocarbyl amine containing at least one tertiary amino group, (b) an epoxide compound selected from a glycidol, a glycidyl ether, glycidyl ester, polyglycidyl ether, a polyglycidyl ester, and combinations thereof, wherein substituents of the glycidyl group have, on average, less than five carbon atoms per hetero atom, and (c) optionally a proton donor.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: Afton Chemical Corporation
    Inventors: Scott D. SCHWAB, Xinggao FANG
  • Publication number: 20150096530
    Abstract: A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.
    Type: Application
    Filed: December 14, 2014
    Publication date: April 9, 2015
    Inventors: Raymond Bzymek, Mark E. Dunn, Ning Wu, Dehong Zhang, Craig D. Marriott, Joshua D. Cowgill, Ben W. Moscherosch
  • Patent number: 9002623
    Abstract: A system for a vehicle includes a mode control module and a valve control module. The mode control module selectively sets a desired ignition mode for an engine to one of a spark ignition (SI) mode and a homogenous charge compression ignition (HCCI) mode. Using a fully flexible valve actuator, the valve actuator module selectively adjusts closing timing of an exhaust valve in response to: the desired ignition mode transitioning from the HCCI mode to the SI mode; and the desired ignition mode transitioning from the SI mode to the HCCI mode.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 7, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Joel Cowgill
  • Publication number: 20150083073
    Abstract: A control device of a compression-ignition engine is provided. The device includes an engine having a cylinder, a fuel injection valve for injecting a fuel, an exhaust valve mechanism for switching an operation mode of an exhaust valve between a normal mode and an open-twice mode, a throttle valve disposed on an intake passage, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder at least within a low engine load range. The controller suspends the fuel injection by the fuel injection valve when a predetermined fuel cut condition is met while the engine decelerates, and the controller fully closes the throttle valve and controls the exhaust valve mechanism to operate in the open-twice mode during the fuel cut. When a predetermined fuel resuming condition is met, the controller restarts the fuel injection, opens the throttle valve, and causes the compression-ignition combustion.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 26, 2015
    Inventors: Kazuhiro Nagatsu, Junichi Taga, Atsushi Inoue, Takashi Youso, Mitsunori Wasada, Keiji Araki
  • Publication number: 20150083074
    Abstract: Self-cooled engine including a cylinder, a cylinder head and a turbo-piston which freely reciprocates inside the cylinder. The cylinder head has a valve that achieves circumferential suction of air-fuel mixture into the cylinder. The valve mechanism is closed and opened by cylindrical cam by means of cam shaft. Circumferential suction of air-fuel mixture enables the cylinder to cool itself and to burn the fuel at the energy center effectively. The force of incoming stream of air-fuel mixture rotates the impeller on the piston which acts as a fan to cool the cylinder walls. The impeller blades deflect the flame from reaching the cylinder walls and acts as a thermal barrier between the energy center and cylinder walls. The high intensity compression swirl (HICS) created at the end of the compression stroke to ensure that the fuel combustion is efficient and instantaneous release of maximum energy.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventor: Sundararajan Srinivasan
  • Publication number: 20150075485
    Abstract: A two-stroke uniflow engine is provided with: a cylinder; a piston; an exhaust valve that is opened and closed in order to discharge exhaust gas that is generated inside the cylinder; a scavenging port that takes active gas into the interior of the cylinder in accordance with a sliding movement of the piston; a fuel injection port that is provided in the internal circumferential surface of the cylinder; a fuel injection valve that injects fuel gas into the fuel injection port; and a fuel injection control unit that executes control of the injection of the fuel gas in the fuel injection valve, wherein the fuel injection control unit decides at least one of an injection pressure and an injection time of the fuel injection valve based on a change in pressure inside the cylinder that is caused by a reciprocating movement of the piston.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 19, 2015
    Applicant: IHI CORPORATION
    Inventors: Takayuki YAMADA, Takayuki HIROSE, Yasunori ASHIKAGA, Takahiro KUGE, Takeshi YAMADA
  • Publication number: 20150075484
    Abstract: Methods and systems are provided for a direct injection fuel pump. The methods and system control pressure within a compression chamber so as to improve fuel pump lubrication.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 19, 2015
    Inventors: Brad Alan VanDerWege, Ross Dykstra Pursifull