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| Number | Title | Issue Date |
| 8166956 | Engine with gaseous and/or liquid fuel injector In one example, a system for a vehicle travelling on a surface is described. The system includes an engine with a cylinder. The cylinder includes a fuel injector that is supplied with gaseous fuel and liquid fuel by a fuel delivery system. The fuel injector is mount... | 05/01/2012 |
| 8118012 | Internal combustion engine using hydrogen In an internal combustion engine using hydrocarbon fuel and hydrogen gas as fuels and including a fuel injection device that injects liquid fuel, a hydrogen-blended fuel in which hydrogen gas is contained in the form of minute bubbles in a liquid hydrocarbon fuel, t... | 02/21/2012 |
| 7913673 | Method and apparatus for controlling liquid fuel delivery during transition between modes in a multimode engine A method of transitioning between operating modes in a multimode engine including a diesel-only mode and a diesel pilot, gas mode includes first terminating or initiating the supply of a gaseous fuel, depending on whether the system is transitioning to or from the p... | 03/29/2011 |
| 7861696 | Multi fuel co-injection system for internal combustion and turbine engines An improved multi-fuel supply and co-injection system and method for powering internal combustion and turbine engines, whereby various combinations of fuels, both liquid and gaseous, may be mixed together and fed into the system, under the real-time control of a mic... | 01/04/2011 |
| 7832381 | Method of operating an internal combustion engine A method for operating an internal combustion engine in the form of an Otto engine, especially of a motor vehicle, selectively uses carburetor fuel, especially gasoline or ethanol (E85) by direct injection into at least one combustion chamber of the internal combust... | 11/16/2010 |
| 7703445 | Fuel supply system A fuel supply system of the present invention is characterized by including: a fuel reformer (4) for producing a reformed gas-containing fuel by causing discharge in a raw liquid fuel; and a fuel supply device (8) for supplying the reformed gas-contain... | 04/27/2010 |
| 7591253 | Secondary fuel system for diesel engines An engine system comprising a secondary fuel source for providing a secondary fuel, a metering valve for delivering the secondary fuel at a substantially pre-determined rate, an air intake, and an internal combustion engine. The metering valve comprises a valve body... | 09/22/2009 |
| 7559316 | Indicator for a vehicle having a dual fuel engine A fuel change indicator system for a vehicle. The system may comprise an internal combustion engine capable of combusting at least two different compositions of fuel and outputting torque to propel a vehicle; a fuel supply system configured to supply the fuel to sai... | 07/14/2009 |
| 7546834 | Selectably fueling with natural gas or direct injection ethanol Various approaches are described for controlling operation of an engine. One example method includes delivering a gaseous fuel to the engine during a first operating range when an amount of stored gaseous fuel is greater than a threshold; and disabling the delivery ... | 06/16/2009 |
| 7523747 | Method and system for liquid fuel conditioning A fuel is conditioned in a fuel supply system for more efficient combustion in a combustion chamber. The conditioning system includes a fuel vessel for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel vessel, at least one ga... | 04/28/2009 |
| 7503315 | Method for controlling the fuel system for an internal combustion engine A method of controlling the power of an internal combustion engine (1) comprising the following steps; in a first, lower power phase of operation of the engine (1), supplying a mixture of air (8) and fuel to the combustion chamber. The majority ... | 03/17/2009 |
| 7458368 | Engine fuel efficiency improvements The present invention is a system for increasing the fuel efficiency of a vehicle of the type having an internal combustion engine, a battery, a vacuum line, and a fuel line that feeds fuel to the engine. The system comprises a hydrogen gas generator and a vacuum re... | 12/02/2008 |
| 7438238 | Gaseous fuel injector The injector includes a nozzle, a needle, a control chamber, a working fluid supply passage, an electric switching valve, a high-pressure gaseous fuel supply passage and a lubrication liquid fuel supply passage. The nozzle has an injection hole, through which high-p... | 10/21/2008 |
| 7426920 | Fuel mixer apparatus and method An apparatus to deliver a fuel into a chamber is provided. In one embodiment, the apparatus includes a fuel inlet and a substantially circular fuel distribution canal communicating with the fuel inlet. A biasing element is coupled to the substantially circular fuel ... | 09/23/2008 |
| 7406950 | Fuel supply apparatus of engine The invention can avoid an energy dissipation and a consumption of an apparatus by minimizing a driving amount of a fuel pump and maintain an improved fuel supply state, in a fuel supply system injecting a liquefied gas fuel by an injector and supplying to an engine... | 08/05/2008 |
| 7387091 | Process for use with dual-fuel systems A system and method is provided to reduce the occurrence of engine knock for engines that utilize a dual-fuel fumigation system. Typically, dual fuel systems inject a gaseous-fuel flow into the air intake stream of a diesel engine. This results in more complete comb... | 06/17/2008 |
| 7373931 | Method and apparatus for delivering two fuels to a direct injection internal combustion engine An apparatus for delivering two fuels to a direct injection internal combustion engine comprises a liquid-fuel supply rail, a gaseous-fuel supply rail, a drain system with a shared drain rail for collecting both liquid fuel and gaseous fuel, and a venting device for... | 05/20/2008 |
| 7357124 | Multiple capillary fuel injector for an internal combustion engine A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes a plurality of capillary flow passages, each of the plurality of capillary flow passages having an inlet end and an outlet end; a heat source arranged a... | 04/15/2008 |
| 7347086 | System and method for burner-based accelerated aging of emissions control device, with engine cycle having cold start and warm up modes A method for accelerated aging of an automotive catalytic converter under conditions incorporating cold start simulations. ... | 03/25/2008 |
| 7343895 | Fuel injection system and method of operation for a gaseous fuelled engine with liquid pilot fuel ignition A pilot fuel injection valve is mountable in a cylinder head of an engine and injects a liquid pilot fuel directly into a combustion chamber. The pilot fuel injection valve comprises a cooling system to keep the pilot fuel at a temperature that is lower than the low... | 03/18/2008 |
| 7337768 | Multiple capillary fuel injector for an internal combustion engine A fuel injector for delivering fuel to an internal combustion engine. The fuel injector includes a fuel injector housing, a system for metering vaporized fuel to the internal combustion engine, the system positioned within the fuel injector housing, and a system for... | 03/04/2008 |
| 7334391 | Electric power supply equipment An electric power supply system capable of maintaining stable power generation or the like regardless of variation in the amount of fuel gas being supplied and variation in the gas calorie, comprises a gas engine, a gas turbine, a suction device configured to collec... | 02/26/2008 |
| 7318426 | Fuel-control manifold with broad-range temperature and pressure capability A fuel-control manifold has a non-integral body with at least three pieces joined together. The fuel-control manifold has a tank port, an engine supply port, a fueling port, and a shutoff valve, all in the upper body segment. The shutoff valve includes a controllabl... | 01/15/2008 |
| 7314033 | Fuel management system for variable ethanol octane enhancement of gasoline engines Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as ... | 01/01/2008 |
| 7302918 | Method and apparatus for providing for high EGR gaseous-fuelled direct injection internal combustion engine A method and apparatus adjust pilot fuel injection timing in relation to a main fuel injection timing into a piston cylinder of an operating gaseous-fuelled direct injection internal combustion engine using high levels of EGR. A set of engine parameters are monitore... | 12/04/2007 |
| 7287519 | Method and apparatus for fuel injection systems An apparatus (100) for a gaseous fuel injection system includes a first chamber (15b) connectable with a source of gaseous fuel at a required inlet pressure, a second chamber (15c) connectable with an engine or other apparatus so a... | 10/30/2007 |
| 7281520 | Arrangement for supplying fuel to the fuel injectors of an internal combustion engine In a fuel supply arrangement for supplying fuel from a fuel tank to the fuel injectors of an internal combustion engine by an electrically operated fuel pump, a first fuel pressure level adequate for normal engine operation is provided by the fuel pump and means are... | 10/16/2007 |
| 7278413 | Fuel pump system with precision variable restrictor A supplemental fuel supply system for use in an internal combustion engine having a fuel supply and using an on-demand supplemental oxygen supply includes a fuel pump and a supplemental oxygen supply regulator. The pump has a fuel supply and a fuel discharge. The pu... | 10/09/2007 |
| 7270089 | Method and apparatus for controlling transition between operating modes in a multimode engine At least one engine operating parameter other than total fuel energy content is taken into account when transitioning between operating modes in a dual fuel or other multimode engine (20) in order to maintain a smooth transition between modes. The parameter p... | 09/18/2007 |
| 7270092 | Variable displacement/compression engine An internal combustion engine with improved efficiency provides continuous variable displacement and/or compression ratio tuning to one of a number of fuel types to be used by the engine. By varying displacement without changing the compression ratio, the engine can... | 09/18/2007 |
| 7269496 | Fuel injection control apparatus for direct injection type internal combustion engine A fuel injection control apparatus for a direct injection type internal combustion engine according to the invention includes a control unit. The control unit estimates the degree to which lubricating oil, which is used in the internal combustion engine, has been di... | 09/11/2007 |
| 7249596 | Fuel system for an internal combustion engine and method for controlling same A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along th... | 07/31/2007 |
| 7246794 | Carburetor throttle valve control system A carburetor valve control system for stabilizing engine warm-up operating conditions by automatically controlling the degree of opening of a throttle valve so as to be larger than a normal degree of opening for idling, without carrying out a special operation of ap... | 07/24/2007 |
| 7240669 | Method of operating an internal combustion engine with a dual fuel injection system In a method of operating an internal combustion engine by supplying a gaseous fuel from a gaseous fuel tank to a combustion air feed line in which a compressor is arranged to the engine, part of the gaseous fuel is added to the combustion air feed line upstream of t... | 07/10/2007 |
| 7231905 | Internal combustion engine exhaust gas recirculation control An internal combustion engine is configured with combustion chamber pressure sensing and exhaust gas recirculation apparatus. Exhaust gas recirculation control includes closed-loop controlling exhaust gas recirculation apparatus in accordance with a predetermined co... | 06/19/2007 |
| 7231930 | Valve assembly cleaning device A valve assembly cleaning device includes a conduit fluidly couples the liquid propane regulator and valve assembly to a propane tank. The cleaning system includes a first tube selectively coupled to the conduit such that the first tube is in fluid connection with t... | 06/19/2007 |
| 7231906 | Simultaneous EGR correction and individual cylinder combustion phase balancing An internal combustion engine is configured with combustion chamber pressure sensing and exhaust gas recirculation apparatus. Fuel injection timing is adjusted based on combustion phasing and exhaust gas recirculation is controlled based on average fuel injection ti... | 06/19/2007 |
| 7228841 | Fuel switching for dual fuel engine An internal combustion engine combusts a first fuel or a second fuel. A method for controlling the engine comprises supplying first fuel to at least one combustion chambers of the internal combustion engine, stopping the supply of the first fuel to the combustion ch... | 06/12/2007 |
| 7225763 | Fumigation system for a diesel engine A system and method is provided to reduce particulate and NOx emissions from diesel engines through the use of a duel-fuel fumigation system. The system injects a gaseous-fuel flow into the air intake stream of a diesel engine. This results in more comple... | 06/05/2007 |
| 7225941 | Reconditioned propane cylinders A reconditioned used propane gas tank or cylinder having (1) aluminum mesh inserts formed from a sheet of aluminum mesh and positioned into the propane cylinder/tank to provide a large wetted surface area inside the tank for increasing the efficiency of vaporization... | 06/05/2007 |
