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| Number | Title | Issue Date |
| 8151780 | Control method and system for dual-fuel engine Various systems and methods are described for controlling a dual-fuel engine that has an evaporated gas providing device for providing an evaporated gas into the engine and is operable with hydrocarbon fuel or non-hydrocarbon fuel, alternatively. One example method ... | 04/10/2012 |
| 7198041 | Engine starting A system, an apparatus, and a method for starting an engine. The system, apparatus, and method include determining a first quantity of fuel based on engine temperature, providing the first quantity of fuel to the engine during a first cycle of the engine, determinin... | 04/03/2007 |
| 7051722 | Engine starting A system, an apparatus, and a method for starting an engine. The system, apparatus, and method include determining a first quantity of fuel based on engine temperature, providing the first quantity of fuel to the engine during a first cycle of the engine, determinin... | 05/30/2006 |
| 6959693 | Fuel injection system and method A fuel injection system includes a first fuel injector that injects a lower-octane fuel into a combustion chamber of an internal combustion engine, and a second fuel injector that injects a higher-octane fuel into an intake passage of the engine. When the engine tem... | 11/01/2005 |
| 6321694 | Process for controlling the phase of switching of fuel in an internal-combustion engine designed to operate selectively with gasoline and gas In an internal-combustion engine designed to operate selectively with gasoline or gas, after each switching of fuel the injectors of the fuel-supply system that has been activated are controlled differently with respect to operation at the normal engine r... | 11/27/2001 |
| 6003478 | Dual-fuel control/monitoring system A control box (11) for a dual-fuel internal-combustion engine (6) is actuated automatically by an oil-pressure switch (16) when activated by a manual switch (30) that directs power from a battery (29) or other engine-electrical component to a current dist... | 12/21/1999 |
| 5823150 | Induction system for two cycle engine A number of embodiments of induction system arrangements for a two cycle crankcase compression internal combustion engine having reed valve assemblies comprised of a mounting portion that defines a flow passage and a first caging member that divides the f... | 10/20/1998 |
| 5775281 | Determination of heat soak conditions A method and an arrangement for determining the presence of heat soak conditions in an internal combustion engine (1) of a type using fuel injection. Particularly useful when the or one of the fuels used in the engine (1) is susceptible to vaporisation in... | 07/07/1998 |
| 5566653 | Method and apparatus for clean cold starting of internal combustion engines An improved starting system for internal combustion engines that normally use a liquid fuel such as gasoline. Gaseous fuels such as hydrogen, natural gas, propane, butane and the like are used in place of the liquid fuel during engine starting and for a s... | 10/22/1996 |
| 5549083 | Method and apparatus for clean cold starting of internal combustion engines An improved starting system for internal combustion engines using gaseous fuels such as hydrogen, natural gas, propane, butane and the like. In an engine using liquid fuel injection for normal operation, a sensor for the catalytic converter is provided to... | 08/27/1996 |
| 5524582 | Two-phase fuel emission system for spark ignited engine An internal combustion engine having a pollution control system with a catalytic converter using a two-phase fuel system in which a small supply of flammable gaseous fuel is used for ignition and initial start-up of the engine. As the engine is warmed up ... | 06/11/1996 |
| 5357908 | Fuel modification method and apparatus for reduction of pollutants emitted from internal combustion engines A method for controlling exhaust gas emissions from an engine (16) includes extracting a light distillate fuel (Fd) from conventional gasoline or other liquid hydrocarbon fuel and supplying the engine with the light distillate fuel during an initial opera... | 10/25/1994 |
| 5224457 | Dual fuel electronic control system A dual fuel system for a diesel engine includes a liquid (diesel) fuel injection system controlled by an engine electronic control unit (ECU) and a source of gaseous fuel such as natural gas. A metering valve and a mixer controls introduction of gaseous f... | 07/06/1993 |
| 4936280 | Electronic dual fuel injection system There is disclosed an electronic dual-fuel injection system for an internal combustion engine having a cylinder block with driving cylinders. The system has an intake manifold which is connected to the driving cylinders to feed fuel mixtures to the cylind... | 06/26/1990 |
| 4699630 | Fuel valve for air-vapor mixer An improved fuel valve for an air-vapor mixer device for the fuel supply system of an internal combustion engine with which it is in thermal contact is disclosed. The valve operates in a fuel metering orifice and is composed of an acetal copolymer resin h... | 10/13/1987 |
| 4539966 | Gas saving apparatus A fuel and air mixture induction system is provided for an internal combustion engine and includes a conventional air and fuel mixing carburetor for starting the engine when the latter is cold. However, when operating temperatures of the engine are reache... | 09/10/1985 |
| 4499885 | Supplemental system for fuel agency A supplemental fuel system for a combustion engine has a primary fuel supply feeding the combustion chamber directly and a supplemental fuel supply which feeds into the combustion air intake. The supply of primary fuel is appropriately reduced or regulate... | 02/19/1985 |
| 4494516 | Carburetor/vaporizer The fuel flows to the usual carburetor, initially, and when the engine heats up, the fuel is directed to a vaporizer, continuing through a line in the vaporizer, and then, as vapor, to the carburetor. In the vaporizer, the exhaust gasses flow over and aro... | 01/22/1985 |
| 4455986 | Engine fuel supply system An engine fuel supply system for an internal combustion engine having an intake manifold, intake ports open to the intake manifold, an exhaust manifold and exhaust ports open to the exhaust manifold. The fuel supply system includes an enclosed heat exchan... | 06/26/1984 |
| 4441475 | Supplementary fuel system for enhancing low temperature engine operation A supplementary fuel system adds propane to the induction passage of an ethanol fueled engine to start and sustain operation of the engine at low temperatures. The propane flow is cycled on and off during cranking of the engine and the propane delivery pr... | 04/10/1984 |
| 4416224 | Internal combustion engine An improvement to an internal combustion engine having a fuel system for feeding a hydrocarbon fuel-air mixture to the combustion chambers and an auxiliary fuel system which utilizes anhydrous ammonia dissociated into hydrogen and nitrogen gas for use as ... | 11/22/1983 |
| 4368163 | Apparatus for vaporizing fuel for engine in conjunction with carburetor A vaporizer chamber includes a coil therein, the coil having extensions extending into the exhaust pipe of the engine, the exhaust gases passing through the coil and heating the interior of the chamber. Fuel is delivered to the vaporizer chamber, and vapo... | 01/11/1983 |
| 4359996 | System for preparing hot vaporized fuel for use in internal combustion engine A system for vaporizing fuel and mixing it in controlled proportions with liquid fuel as a feed to a carburetor in an internal combustion engine comprising a vapor generator for heating liquid fuel to vaporize it, a jacket around the generator filled with... | 11/23/1982 |
| 4354477 | Multi-fuel carburetor with rotary mixing valve A carburetor having a fuel mixing valve with multiple vanes which control the flows of main and secondary fuels into a valve mixing chamber. The octane rating of the fuel charge may be momentarily increased during periods of engine acceleration to permit ... | 10/19/1982 |
| 4345570 | Fuel heating apparatus for vehicles A fuel heating apparatus for carburetor-equipped vehicles which includes a vaporizer box provided with a fuel level control for maintaining a level of fuel therein, and having an air inlet and a fuel-air mixture outlet, and further fitted with a cold fuel... | 08/24/1982 |
| 4300517 | Fuel supply device for a diesel engine Disclosed is a fuel supply device for a diesel engine comprising alternately connected to a diesel engine a light fuel loop and a heavy fuel loop incorporating a tank and a fuel priming pump, the loops communicating with a suction pipe of the diesel engin... | 11/17/1981 |
| 4085720 | Fuel supply system for multi-fuel internal combustion engines Fuel supply system for multi-fuel internal combustion engines having a selector valve for controlling the feed of fuels such as gasoline and kerosene and a vacuum actuator to operate the selector valve according to the pressure in intake passage of the en... | 04/25/1978 |
| 4056087 | Two-fuel carburetor An internal combustion engine carburetor is provided with means for introducing two separate types of liquid into the engine, one of the liquids being gasoline and the other a non-gasoline liquid, such as methyl alcohol, tertiary butyl alcohol, or other a... | 11/01/1977 |
| 3963013 | Air and fuel charge forming device A fuel and air induction system is provided for an internal combustion engine and includes a conventional air and fuel mixing carburetor for starting the engine when cold. However, when operating temperatures of the engine are obtained the air and fuel in... | 06/15/1976 |
