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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...
7587999 Gas engine electric power generating system effectively utilizing greenhouse gas emission credit  
A gas engine electric power generating system in which an electric power generating apparatus including an electric power generator connected with a gas engine of a pilot fuel oil ignition type is...
7533634 Process for use with dual-fuel systems  
A system and method is provided for use with a duel-fuel fumigation system. The system injects a gaseous-fuel flow into the air intake stream of a diesel engine. As presented, the system is...
7506638 Fuel delivery system  
A fuel delivery system for supplying liquid gas fuel to an engine is disclosed. The fuel can be supplied solely to the engine or together with diesel fuel. The fuel delivery system includes an...
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 (...
7444986 Dual fuel engine  
A dual fuel engine ( 2 ) is provided which is supplied with diesel fuel and at least one secondary fuel, such as LPG. The engine ( 2 ) has a plurality of cylinders ( 4, 6, 8, 10 ) in which pistons...
7418954 Gaseous fuel and air mixer for an engine  
A path ( 24 ) is formed in an intake tube ( 6 ), which supplies external air to a reciprocating engine ( 4 ). External air flowing from an inlet port to an outlet port of the path ( 24 ). A gaseous...
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...
7370666 Power system with computer-controlled fuel system  
The present invention is a fuel-control system for a turbine which includes a programmable logic controller. The controller manages utility and stored natural gas sources using a surge tank and...
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...
7308889 High pressure gaseous fuel supply system for an internal combustion engine and a method of sealing connections between components to prevent leakage of a high pressure gaseous fuel  
A high-pressure fuel system supplies gaseous fuel to an internal combustion engine. Gaseous fuel pressure within the system is at least 17 MPa during normal operation. The system comprises a number...
7305939 Addition of flexible fuel engine control system  
The apparatus and method convert the fuel system of an internal combustion engine in a pre-existing (used) vehicle to operate on a mixture of fuels (like ethanol and gasoline) from a single fuel...
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...
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...
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...
7225763 Fumigation system for a diesel engine  
A system and method is provided to reduce particulate and NO x emissions from diesel engines through the use of a duel-fuel fumigation system. The system injects a gaseous-fuel flow into the air...
7207321 Fuel delivery system  
A fuel delivery system for supplying liquid gas fuel to an engine is disclosed. The fuel can be supplied solely to the engine or together with diesel fuel. The fuel delivery system includes an...
7174861 Method and apparatus for fueling an internal combustion engine  
A combined gasoline and hydrogen fueling system for a gasoline-powered internal combustion engine, including, preferably, a rapid-start catalytic reformer for producing reformate gas containing...
7162995 Method for injecting gaseous fuels into an internal combustion engine at high pressures  
A method directly injects gaseous fuel into the combustion chamber of an internal combustion engine. The compressibility of the gaseous fuel is used to provide a fuel to the combustion chamber that...
7117826 Pilot oil ignition gas engine and method of operating pilot oil ignition gas engine  
The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers....
7045916 Electronic fuel selection switch system  
Devices and methods for providing a switch for selecting which of a number of fuel valves receives power. The switch preferably provides a delay between the powering down of a first fuel valve and...
7028645 Pilot oil ignition gas engine and method of operating pilot oil ignition gas engine  
The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers....
7007661 Method and apparatus for controlling micro pilot fuel injection to minimize NOx and UHC emissions  
The present invention provides a system that controls the amount and timing of pilot fuel injection to obtain minimum NO x and UHC emissions. The system senses if combustion occurs, when...
7000573 Compression ignition engines  
A method and arrangement of supplying a supplementary fuel ( 8 ) to a compression ignition internal combustion engine wherein an air supply ( 3 ) to the engine is first caused to pass through a...
6990956 Internal combustion engine  
An internal combustion engine, in which multiple kinds of fuels are fed to a cylinder from multiple fuel injectors each corresponding to each of multiple kinds of fuels at a target mixing ratio...
6981472 Homogeneous charge compression ignition control utilizing plasmatron fuel converter technology  
A method and apparatus for operation of an internal combustion engine running under a homogeneous charge compression ignition (HCCI) mode with fuel partially reformed by an onboard fuel reformer....
6935282 Vehicle having an internal combustion engine and a fuel cell and method of making a vehicle  
A vehicle includes an internal combustion engine and a fuel cell for supplying electric vehicle systems. The fuel cell is thermally “coupled” with the internal combustion engine. The waste heat...
6863034 Method of controlling a bi-fuel generator set  
A method is provided for controlling a bi-fuel generator set. The generator set includes a controller, a generator for generating electrical power, and an engine for driving the generator. A flow...
6845616 Internal combustion engine which can be operated with a choice of different fuels, especially for a motor vehicle drive system  
The invention provides an internal combustion engine which can be run optionally on various fuels of different energy density, in particular for a motor vehicle drive, characterised in that the...
6830026 Diagnostics system for tracing leaks from a gas-supply system and for checking operation of the valves forming part of said system  
In a gas-supply system for supplying a generic engine of a vehicle type, comprising electronic control means for controlling delivery devices associated to various engines, said electronic control...
6814032 Dual fuel engine  
The present invention aims to allow an arbitrary selection to be made between gas operation and diesel operation, to achieve a reduction in NOx even when in diesel operation, to allow the...
6679221 Controlling the injection in a fuel system selectively operable with gasoline or fuel gas  
A control method comprises the steps of: selectively supplying fuel gas to some cylinders of an engine on the basis of the power required from it; selecting the quantity of fuel gas supplied to...
6675748 Method and apparatus for fuel injection into an internal combustion engine  
A method and apparatus for injecting a gaseous fuel into a combustion chamber of an internal combustion engine (ICE) cylinder employs a combination of operating modes. First, one of a low load and...
6601560 Method for starting and operating an internal combustion engine  
A method is provided for operating an internal combustion engine comprising a combustion chamber defined by the inner wall of a cylinder, a cylinder head and the upper surface of a piston moveable...
6550430 Method of operating a dual fuel internal  
The combustion chamber of a high speed, two stroke or four stroke, internal combustion engine is provided with a generally homogeneous mixture of combustion air and two types of fuel, one having a...
6543395 Bi-fuel control system and retrofit assembly for diesel engines  
A bi-fuel control system and assembly for modifying and operating a diesel engine to the extent that the engine is capable of running in either a full diesel fuel mode or a bi-fuel mode, where...
6386149 Method of operating an engine with a mixture of gaseous fuel and emulsified pilot fuel to reduce nitrogen oxide emissions  
Reduction of nitrogen oxide emissions during operation of an engine is achieved by using a fuel mixture therein which includes a gaseous fuel and an emulsified pilot fuel. The method includes the...
6371091 System for the intermittent and/or sequential introduction of a gaseous fuel  
The system includes a metering valve for each cylinder including a main valve and an auxiliary valve. The auxiliary valve is electrically controlled ad via a mechanical, pressure controlled...
6340005 Air-fuel control system  
A method for controlling the air-fuel ratio in a natural gas engine having an air-fuel mixing device, comprises: determining a speed set-point and an actual engine speed, determining a fuel command...
6328230 Fuel injector for an internal combustion engine  
A fuel injector for an internal combustion engine includes a first injection valve having a first valve element that can be displaced in an axial direction and a first actuating device located...
6325039 Combined engine and method for operating the same  
The present invention relates to a combined engine which receives a drive output by means of supplying and combusting at least one fuel selected from among a gas fuel and a liquid fuel. The engine...
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...
6298833 Fluid seal apparatus and method for dynamically controlling sealing-fluid pressure  
A dynamic fluid sealing system for a fuel injection valve employs sealing-fluid to separate a gaseous fuel and a second fluid in the fuel injection valve, thereby preventing leakage of the gaseous...
6269300 Method for producing production control software for a natural gas or diesel engine controller  
A method of operating a computer to automatically produce production control software for a natural gas engine controller or a diesel engine controller is provided. The method includes the steps of...
6267105 Electronic pressure reducer for liquid petroleum gasses  
An electronic pressure reducer for liquid petroleum gasses comprises a heat exchanger (2,3) located upstream of an evaporation chamber (4) connected to a pressure reducing valve (5); the chambers...
6250261 Device for feeding natural compressed gas to a diesel engine  
Diesel engine conversion kit wherein said kit arranged at the engine air inlet of a diesel engine to be transformed, comprises three different pieces defining an air inlet means, gas feeding means...
6250260 Bi-fuel control system and assembly for reciprocating diesel engine powered electric generators  
A system and assembly for modifying a diesel powered electric generator preferably of the reciprocating engine type to the extent that the generator is capable of running on either 100% diesel fuel...
6213104 Method and a device for supplying fuel to an internal combustion engine  
According to the present invention, the state of a liquid fuel such as diesel fuel is made a supercritical state by raising the pressure and the temperature of the fuel above the critical pressure...
6205957 Natural gas engine with in situ generation of an autoignition product  
An apparatus and method for generating an autoignition substance such as DME for operating a diesel-type engine 12 with natural gas. A multi-stage reformer 18 is connected to a supply of natural...
6202601 Method and apparatus for dual fuel injection into an internal combustion engine  
Two different fuels are injected into the combustion chamber of an internal combustion engine. A main fuel is ignited by a pilot fuel that is more readily flammable than the main fuel. According to...
Matches 1 - 50 out of 189 1 2 3 4 >