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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...
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...
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...
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...
7523739 Fuel injection system for internal combustion engine  
A fuel injection system for an internal combustion engine has a lubricity improver supply for adding a lubricity improver to low-viscosity fuel supplied to a fuel injection apparatus of the engine....
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 (...
7487766 Flexible fuel engines with exhaust gas recirculation for improved engine efficiency  
A method and system for use with flexible fuel engines capable of operating with arbitrary mixtures of gasoline and alternative fuel. The engine is equipped with an EGR loop and a control system,...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
7198023 Sequential injection lubrication system for a spherical rotary valve internal combustion engine operating on natural gas or alternative fuels  
A sequential injection lubrication system for a spherical rotary valve internal combustion engine operating on natural gas or alternative fuels, the lubrication system having a plurality of...
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...
7150271 Vapor assisted cold start control algorithm  
An engine system according to the present invention includes an engine and a fuel system that delivers a liquid fuel and a vapor fuel to the engine. A control module communicates with the fuel...
7131430 Emissions control system for small internal combustion engines  
An evaporative emissions control system for small internal combustion engines includes a control valve associated with a fuel line and with a vent line which each connect the fuel tank to the...
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....
7100582 Propane injection control system and apparatus for vehicles  
A propane injector system for internal combustion engines for improving performance, fuel efficiency, safety, cleanliness and environmental friendliness. The system consists of introducing propane...
7093588 Dual fuel engine control  
A system of analyzing engine performance to assist in the improved control of a dual fuel engine includes measuring devices for measuring parameters including engine load, RPM, fuel injected, air...
7093567 Internal combustion system and method of operation  
Internal combustion (I.C.) systems and methods provided herein substantially eliminate incomplete combustion, unburned hydrocarbon emission, and hydrocarbon, CO, NO x , and SO x emissions. A...
7066155 Method and system for the control of fumigation  
A system and method of adjusting the rate of supplementary fuel flow to an engine while monitoring the operating characteristics of an engine. The amount of pressure to apply to a regulator valve...
7051700 Internal combustion engine and control device for the internal combustion engine  
Disclosed is an internal combustion engine in which it is possible to provide, from the exhaust stroke to the intake stroke, a period T during which both an intake valve ( 14 ) and an exhaust valve...
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...
7044113 Systems for delivering liquified gas to an engine  
A liquified gas delivery system for a motorized platform includes a holding tank configured to receive liquified gas. A first conduit extends from a vapor holding portion of the tank to a valve...
7019626 Multi-fuel engine conversion system and method  
Systems, methods and apparatus' of converting an engine into a multi-fuel engine are provided. One embodiment reduces particulate emissions and reduces the amount of combusted gasoline or diesel...
7011048 Method and apparatus for liquid fuel preparation to improve combustion  
An apparatus and method for dissolving gas or gases in liquid fuel to improve combustion of the liquid fuel when injected into a combustion chamber is provided. A gas-charger unit is provided to...
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...
6988492 Hydrogen and liquid fuel injection system  
The present invention relates to a small adapter manifold that is constructed and arranged to fit into the standard fuel injector cavity for each cylinder of an automobile engine. The manifold...
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....
6955156 Injection pump and fuel DME feed device of diesel engine with the injection pump  
In an injection pump element 2 , a communication route for communicating an injection pipe 3 connected to a fuel liquid outlet 212 and an inner peripheral surface of a plunger barrel 25 is...
6951210 Feed and control system for an internal combustion engine fed with two different fuels  
An improved feed and control system for an internal combustion engine able to be fed with one or other of two fuels such as petrol and liquid gas or petrol and methane, the engine comprising a...
6947831 Pressure sensor diagnosis via a computer  
A method is described for controlling regeneration of a particulate filter based on at least a sensor, such as a differential pressure sensor. Degradation of the sensor is then detected in a...
6883501 Throttle and fuel injector assembly  
A throttle and fuel injector assembly and method of controlling fuel and air supply to an engine. The assembly and method provide combustion air through a carburetor and fuel through a carburetor.
6868837 Cold start fuel vapor enrichment  
An engine system includes an engine, a fuel system that communicates with the engine, and a controller that communicates with the fuel system. The controller controls a first quantity of liquid...
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...
6843236 Multi-phase fuel system  
The present invention provides a multi-phase fuel system for an internal combustion engine. More specifically, when the multi-phase fuel system is applied to a vehicle, the higher volatility....
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...
6805107 Dual fuel source carburetor method  
An apparatus and method for powering an engine with two fuel sources, where one of the fuel sources varies in quality and or quantity.
6758194 Parallel vaporized fuel system  
The present invention provides a parallel vaporized fuel system as well as a fuel vaporization apparatus for an internal combustion engine. More specifically, when the parallel vaporized fuel...
6729313 Tank for a system for injection supply of LPG for internal-combustion engines  
In a tank for a system for injection supply of LPG for internal-combustion engines, a number of hydraulic-connection elements associated to a service flange which closes the top opening of the tank...
6704640 Engine control device  
To simplify a constitution of an engine control device operated using another fuel different from a predetermined fuel. The engine control device includes: a main computer 1 to output a signal on...
6691684 Fuel fractionation device and method of making same  
A fuel fractionation device is provided for separating a low-boiling fuel fraction from a liquid fuel in an internal combustion engine, having a fuel tank which contains the liquid fuel and having...
6687597 Neural control system and method for alternatively fueled engines  
A powertrain controller of a vehicle provides fuel injection pulses based on gasoline operation. The pulse widths of the fuel injection pulses are modified with reference to air temperature, engine...
Matches 1 - 50 out of 250 1 2 3 4 5 >