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Class 123/299 - Using multiple injectors or injections


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein, a plurality of injectors or a plurality
No. of patents: 825
Last issue date: 05/22/2012


1                      
NumberTitleIssue Date
8181626Fuel injection control apparatus for internal combustion engine
A systematic fuel injection control technique for compression self-igniting internal combustion engines capable of executing an auxiliary injection prior to a primary injection is provided, with which it is possible to optimize an injection mode for the primary inje...
05/22/2012
8118006Fuel injector diagnostic for dual fuel engine
Various systems and methods are described for controlling fuel injection of a dual fuel engine which includes first and second fuel rails and first and second fuel pumps. In one example, while pumping is suspended in the second fuel rail, the first fuel is injected ...
02/21/2012
8100107Method and system for engine control
Methods and systems are provided for controlling exhaust emissions by adjusting a fuel injection into an engine cylinder from a plurality of fuel injectors based on the fuel type of the injected fuel and further based on the soot load of the engine. Soot generated f...
01/24/2012
8037864Diesel engine
In a diesel engine 10 equipped with a fuel injection device 50 having a fuel supply pump 53 for pressingly sending a fuel, a common rail 52 for accumulating the fuel pressingly sent from the fuel supply pump, injectors 51 for injec...
10/18/2011
8028676Fuel injection control method for a direct injection gaseous-fuelled internal combustion engine
The method comprises receiving from the vehicle controller, values associated with the engine speed and of another parameter indicative of the engine operating conditions, such as the total fuelling amount, and controlling the fuel injection parameters according to ...
10/04/2011
7992538Method of controlling an internal combustion engine and system including the engine
A method of controlling an internal combustion engine and system including the engine is provided. The method may include closing an exhaust valve of a combustion chamber of said engine during a cylinder cycle prior to opening an intake valve of said combustion cham...
08/09/2011
7992539Fuel injection control device of an internal combustion engine
An ECU executes a program including injecting fuel only by an intake passage injector when an engine is idling, starting an addition-type PFI timer, resetting the PFI timer when a count of the PFI timer reaches a set value that is set shorter as the fuel is lighter ...
08/09/2011
7954472High performance, low emission engines, multiple cylinder engines and operating methods
High performance, low emission engines, multiple cylinder engines and operating methods based on compression ignition of a combustion chamber charge. In accordance with the methods, fuel is injected into the combustion chamber after the exhaust valve closes, and air...
06/07/2011
7934484Method and device for controlling an internal combustion engine when changing operating modes
In a method for controlling an internal combustion engine (10) during which two operating modes (OPMOD) are switched between under the permissible variation of at least one first and one second torque manipulated variables if, as a result, a torque-neutral ch...
05/03/2011
7900594System and method for injecting fuel into a direct injection engine
A method for controlling the operation of at least one fuel injector in a four stroke internal combustion engine is provided. The method includes the steps of initiating fuel injection into a combustion chamber during an expansion stroke of the engine, injecting fue...
03/08/2011
7895987Method for introducing fuel into a combustion chamber of an internal combustion engine
A method for introducing fuel into a combustion chamber of an internal combustion engine is provided, in which fuel is injected at variable metering directly into the combustion chamber by a first fuel injector on the one hand, and into an air aspiration channel lea...
03/01/2011
7874277Combustion method for a reciprocating piston internal combustion engine
A reciprocating engine includes a combustion chamber, and a gas exchange inlet valve and a gas exchange outlet valve for a charge cycle. The method introduces an inlet gas into the combustion chamber in an intake phase; introduces a primary quantity of fuel into the...
01/25/2011
7874276Fuel injection control method for an internal-combustion engine and engine using the same
The invention relates to a method for control of fuel injection for an internal combustion engine, in particular with direct fuel injection, comprising at least one cylinder (10), one piston (30) running in said cylinder, with a projection (34) ...
01/25/2011
7861686Fuel injection control apparatus and fuel injection control method
According to an internal combustion engine fuel injection control apparatus and control method, when an operating region of the engine shifts from a fuel cut region in which no fuel is injected to a low load region in which a small amount of fuel is injected, or vis...
01/04/2011
7849834Method and apparatus for controlling emissions from internal combustion engines
An internal combustion engine is provided with a control arrangement for influencing exhaust gas pressures and the level of In-Cylinder-Charge-Dilution (ICCD) so as to provide cycles with different emission characteristics. The exhaust gas pressure may be influenced...
12/14/2010
7841316Controller for direct injection engine
When an engine is at starting or at cold state, a closing time of an exhaust valve is set before an intake top dead center to close the exhaust valve early. An exhaust residual gas is compressed by a cylinder to raise an inner cylinder temperature. A pre-fuel inject...
11/30/2010
7827957Diesel engine control device
A control device is provided that controls the injection quantity and injection timing of fuel injected into the cylinder of a diesel engine, in which are provided two control modes of: a normal injection mode in which the injection quantity and injection timing are...
11/09/2010
7806100Injection method and associated internal combustion engine
In order to improve a combustion process of a motor vehicle, in particular with regard to emissions and/or the development of noise, a method for regulating an injection profile is provided, in which method a fuel is injected directly into a combustion chamber, wher...
10/05/2010
7789062Injection nozzle
An injection nozzle for a compression ignition internal combustion engine, the injection nozzle comprising: a nozzle body provided with a bore, within which a unitary valve needle is movable along a primary valve needle axis, the valve needle being engageable with a...
09/07/2010
7770556Multi-hole injector, in-cylinder gasoline injection type internal combustion engine and control method for the engine
Improvement of combustion stability in retard ignition at the time of starting in a cold state, high output in a full throttle condition, reduction of smoke, and prevention of wear of the cylinder liner caused by oil dilution, are to be attained. In connection with ...
08/10/2010
7740001Fuel injection system
A fuel injection system for an internal combustion engine is provided for providing an injection event including a first stage and a second stage via a single nozzle. The nozzle is connected by its inlet port to a source of variable fuel pressure and it includes a n...
06/22/2010
7740000Method and apparatus for injecting fuel into a compression-ignition engine
A method to manage and control engine operation includes injecting an initial mass of fuel into a combustion chamber to form a combustion charge, monitoring combustion and injecting a main mass of fuel into the combustion chamber substantially coincident with a star...
06/22/2010
7739999Method and apparatus to control combustion in a multi-cylinder homogeneous charge compression-ignition engine
A method and apparatus are provided to control combustion in a multi-cylinder internal combustion engine operating in a controlled auto-ignition mode with minimum combustion phasing error using a least amount of fuel reforming. This comprises monitoring combustion i...
06/22/2010
7730871Fuel injection control method for a direct injection spark ignition internal combustion engine
A direct injection spark ignition internal combustion engine including a controller that controls a fuel injector to perform a plurality of fuel injections to inject a necessary amount of fuel during an intake stroke, or from an intake stroke to a first half of a co...
06/08/2010
7726276Method for adapting variations in cylinder-selective injection quantities of a direct injection system and method for cylinder-selectively controlling injection
In a method for adapting variations in cylinder-selective injection quantities of a direct injection system of an internal combustion engine with a plurality of cylinders, factorial and additive adaptive values are determined in order to be able to reliably adjust a...
06/01/2010
7707988Engine
An engine includes an in-cylinder injector injecting fuel into a cylinder, a port injector injecting fuel into an intake manifold, and a valve-opening-characteristic changing mechanism changing at least lift or opening duration of an intake valve. When the engine is...
05/04/2010
7703434Method and apparatus for controlling ignition timing in a compression-ignition engine operating in an auto-ignition mode
A method for controlling timing of ignition of a fuel charge in a compression-ignition engine operating in a controlled auto-ignition mode wherein the engine includes controllable intake and exhaust valve actuation systems is described. The method comprises determin...
04/27/2010
7685990Dual mode combustion apparatus and method
A fuel injection apparatus for a fuel injector nozzle includes a moveable valve needle slideably located within a nozzle body, the nozzle body having an internal surface defining a valve seat between a fuel supply path and fuel outlets. The valve needle includes an ...
03/30/2010
7681550Internal combustion engine
An internal combustion engine 10 includes a fuel injection valve 37 for injecting a gasoline fuel into a combustion chamber 25, and a spark plug 35. When the internal combustion engine is operated in a light-load region, the fuel is injec...
03/23/2010
7677222Diesel engine control device
In a diesel engine control device, a normal injection mode that implements normal combustion and a premixed injection mode that implements premixed combustion are set, the normal injection mode is implemented when the actual engine operating conditions are in the no...
03/16/2010
7669579Method for the lambda and torque control of an internal combustion engine and program algorithm
In a method for controlling the air ratio lambda and for controlling the torque of an internal combustion engine, e.g. of a diesel engine, a fuel is supplied in at least two injection processes, including a main injection of a main injection quantity and a post-inje...
03/02/2010
7654245Method of operating a spark ignition internal combustion engine
In a method for operating a spark-ignition, direct-injection internal combustion engine, wherein fuel is injected into a cylinder of the internal combustion engine and is ignited by a spark plug as a function of at least the load of the internal combustion engine, a...
02/02/2010
7647914Controlled port oxidation of direct injection spark ignition engines
A system and method for operating an engine is disclosed. The system and method includes performing multiple ignitions during a single engine cycle. According to one embodiment, a first ignition takes place during a first stroke in the cycle and a second ignition ta...
01/19/2010
7644696Internal combustion engine system, and a method in such an engine system
An embodiment of the invention relates to an engine system, and a method in an engine system comprising an internal combustion engine having at least one cylinder (2) at which a piston (3), at least one inlet valve (5), at least one exhaust valv...
01/12/2010
7640911Two-stroke, homogeneous charge, spark-ignition engine
A method for combusting fuel in an engine using a two-stroke homogeneous charge spark-ignition cycle. The method involving injecting fuel into partially compressed hot air to provide a homogenous charge to the cylinder before second stage compression in the cylinder...
01/05/2010
7610895Method of operating an internal combustion engine in an engine warm-up phase
In a method of operating an internal combustion engine of a motor vehicle during an engine warm-up phase, the engine having a cylinder including a piston defining in the cylinder a combustion chamber, wherein fuel is injected into the combustion chamber in a pilot i...
11/03/2009
7594493Method for controlling fuel injection in a compression ignition engine
A method for controlling operation of an internal combustion engine operating lean of stoichiometry is described. The engine is a multi-cylinder direct-injection engine operative in repetitive cycles each cycle including intake, compression, expansion, and exhaust s...
09/29/2009
7591243Fuel injection control apparatus and method for direct injection internal combustion engine
In a direct injection internal combustion engine which switches a fuel injection mode between a batch injection in which fuel is injected once and a split injection in which fuel is injected at a plurality of timings, a fuel increase amount is set larger for the spl...
09/22/2009
7578280Fuel injection system designed to enhance uniformity of size of atomized particles of fuel
A fuel injection system for an internal combustion engine is provided which includes a fuel injector equipped with an actuator and a nozzle needle. The actuator works to lift the nozzle needle to inject fuel into an internal combustion engine. A controller controls ...
08/25/2009
7574992Fuel injector with multiple injector nozzles for an internal combustion engine
An internal combustion engine includes an engine block, at least one combustion cylinder carried by the engine block, and at least one fuel injector. Each fuel injector is associated with a respective combustion cylinder. Each fuel injector includes a plurality of i...
08/18/2009
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