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Class 123/27GE - Gas engines (diesel type) convertible from liquid to gas or operable with liquid and gas


Subclass of Class 123 - Internal-combustion engines
No. of patents: 192
Last issue date: 09/14/2010


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NumberTitleIssue Date
7793622Method of operating a gas engine
A gas engine has a first fuel feed system, a second fuel feed system and a third fuel feed system. The gas engine is operated by introducing combustion air into a combustion chamber of the engine. In a first mode of operation of the engine, gaseous fuel is added to ...
09/14/2010
7533634Process 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 operative to meter the gaseous-fuel flow into the diesel engine based on one...
05/19/2009
7418954Gaseous 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 fuel path (26) is connected to the path (...
09/02/2008
7387091Process 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
7373931Method 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
7370666Power 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 pressure-control valve arrangement and is backed up by a hydrogen-powere...
05/13/2008
7367309Internal combustion engine
An internal combustion engine is provided which can operate by either the homogeneous charge compression ignition system or the spark ignition system using a single fuel. In the internal combustion engine using a fuel containing a hydrocarbon, the fuel contains o-xy...
05/06/2008
7363911Humidity-based combustion control in a multiple combustion mode engine
A system and method for controlling operation of a gasoline internal combustion engine capable of running in a spark ignition mode and a homogeneous charge compression ignition mode. The method and system implementation include determining humidity of air to be draw...
04/29/2008
7359789Control system for an internal combustion engine and a vehicle having the same
The invention provides a control system for an internal combustion engine of a vehicle. The control system includes a sensor controller and an engine controller. The sensor controller includes a first interface configured to be connected to a sensor coupled to the e...
04/15/2008
7343895Fuel 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
7334547Variable expansion-ratio engine
A variable expansion-ratio engine includes an expansion-ratio adjuster configured to adjust an expansion ratio; a load detector configured to detect an engine load; and a controller configured to control the expansion-ratio adjuster. The controller controls the expa...
02/26/2008
7325529Method and apparatus for controlling combustion quality of a gaseous-fuelled internal combustion engine
A method and apparatus for controlling to a target heat release rate (HRR) uses an HRR control lever, namely, pilot fuel timing and/or pilot fuel quantity, used in a gaseous-fuelled compression ignition internal combustion engine. The mechanism to control HRR to a t...
02/05/2008
7322344Fuel injection control apparatus for internal combustion engine
An internal combustion engine includes a direct injector for injecting fuel directly into a combustion chamber of the engine, an intake passage injector for injecting fuel into an intake passage of the engine, and a vaporized fuel processing unit for purging purge g...
01/29/2008
7308889High 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 of components and conduits and at least one resilient member for sea...
12/18/2007
7305939Addition 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 tank. The apparatus includes a fuel composition sensor installed in the...
12/11/2007
7302918Method 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
7287519Method 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
7278393Direct injection type fuel injection device and fuel injection control device for internal combustion engine
A fuel injection device is provided with a fuel injection valve for injecting fuel into a combustion chamber and an air injection valve for the injection of air into the combustion chamber. One fuel injection orifice which opens into the combustion chamber is provid...
10/09/2007
7270089Method 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
7240669Method 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
7231930Valve 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
7228841Fuel 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
7225763Fumigation 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
7222613Fuel delivery system
A fuel delivery system for an engine is disclosed which includes an injector (20) and a housing (3) for supporting a fuel injector (20). A regulator (202, 313) is provided for regulating the pressure of fluid in the housing to maintain th...
05/29/2007
7198023Sequential 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 injectors, one for each cylinder, the injectors and communication with a lub...
04/03/2007
7191772Method of regulating an internal combustion engine
Method of regulating an internal combustion engine in order to reach presettable nitrogen oxide emission values of the internal combustion engine, wherein the internal combustion engine is supplied at least some of the time with a first fuel and at least some of the...
03/20/2007
7174861Method 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 hydrogen from gasoline. The reformate from the reformer is swept by air ...
02/13/2007
7171924Combustion control system of a homogeneous charge
An internal combustion engine has at least one combustion chamber and a piston slidably disposed within the at least one combustion chamber. The piston is configured to reciprocate between a top-dead-center position and a bottom-dead-center position. The internal co...
02/06/2007
7165527Control device for a diesel engine
There are provided a diesel engine that injects fuel into air compressed in cylinders and combusts the fuel by spontaneous ignition, and a control unit that sets the fuel injection timing to an earlier time point than the compression top dead center to premix air an...
01/23/2007
7162995Method 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 is injected over all engine operating conditions at pressures that r...
01/16/2007
7162994Control method and apparatus for gaseous fuelled internal combustion engine
A method and apparatus create an environment within a combustion chamber of an internal combustion engine suitable for auto-ignition and combustion of a fuel that will not otherwise auto-ignite. Under high-load conditions, a pilot quantity of the fuel is injected in...
01/16/2007
7131431Electronic pressure regulator
The present invention relates to an electronic pressure regulator that can be used for gaseous fuel control on internal combustion engines. More particularly, the present invention relates to an electronic pressure regulator that has direct acting electro-mechanical...
11/07/2006
7117826Pilot 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. An operating pilot oil tank and an ignition stimulant-added pilot oil...
10/10/2006
7077101Hybrid fuel injection system
A hybrid fuel injection system which allows electronic control over the injection processes, wherein selective rate shaping and multiplicity of injections is possible. The hybrid fuel injection system consists of an add-on common rail system (CRS) which provides sup...
07/18/2006
7055506Fuel control system for a dual fuel internal combustion engine
A gaseous fuel control system for regulating fuel flow to a dual fuel internal combustion engine has a phase converter for converting the fuel from a liquid state to a gaseous state and control means for controlling the supply of fuel to the engine in response to se...
06/06/2006
7045916Electronic 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 the powering up of a second fuel valve. Also included are systems and...
05/16/2006
7040281Method of injecting a gaseous fuel into an internal combustion engine
A method of operating a gaseous-fueled internal combustion engine comprises selecting one of at least two predetermined operating modes as a function of engine load and engine speed. A first operating mode is selected when said engine is commanded to operate within ...
05/09/2006
7036318Gas turbine electric powerplant
A gas turbine electric powerplant, preferably driven by an aeroderivative turbine engine of split shaft design. The gas turbine engine is coupled to a speed reducer, which is in turn coupled to an electric generator. An engine mount is provided that ensures that the...
05/02/2006
7036755Fuel injection valve for engine
A fuel injection valve, for an engine, comprising a nozzle body having a plurality of nozzle holes and a needle valve reciprocated in the nozzle body for controlling the inflow of the fuel into the nozzle holes is disclosed. The fuel is rendered to flow into the noz...
05/02/2006
7036482Multi-fuel compression ignition engine
A liquid primary fuel is ignited by HCCI with the assistance of the early injection of a liquid pilot fuel. Pilot fuel injection and/or ignition are preferably controlled so as to permit the injected pilot fuel to become thoroughly distributed through and mixed with...
05/02/2006
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