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7607417 |
Method and system for controlling an internal combustion engine
A method and system for controlling an internal combustion engine is provide. The engine has a fuel-supply device, a low-pressure circuit and a high-pressure pump, to which a control valve for a...
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7588012 |
Fuel system having variable injection pressure
A fuel injector for a work machine is disclosed. The fuel injector has nozzle member having at least one orifice and a needle valve element having a tip end. The needle valve element is axially...
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7584746 |
Fuel rail radiated noise reduction
A fuel rail assembly of an internal combustion engine includes an axially extending non-round fuel conduit and at least one axially extending stiffening feature integral with said conduit....
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7574994 |
Fuel injection system
A fuel injection system having a high-pressure accumulator, in which fuel may be stored at high pressure, at least one fuel injector via which the fuel located in the high-pressure accumulator may...
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7568468 |
Method for operating an internal combustion engine
A method for operating an internal combustion engine having a fuel pump with a drive shaft is provided, the fuel pump conveying fuel into at least one fuel-collection line, the fuel being...
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7558665 |
System for determining critical on-times for fuel injectors
A fuel system has a source of fuel coupled to a plurality of fuel injectors via a fuel rail. The system is operable to determining a critical on-time for a selected one of the injectors by...
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7543566 |
Method and control unit for operating an internal combustion engine having an injection system
In a method, a computer program and a control unit for operating an internal combustion engine having an injection system, e.g., for a motor vehicle, in the injection system fuel is conveyed into a...
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7520268 |
Fuel rail damping assembly including an insert
A damping assembly for use with a fuel rail. The damping assembly includes a damper configured to be positioned substantially within the fuel rail. The damper includes a wall and defines a...
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7520267 |
Fuel injection apparatus having fuel supplier for displacement amplifying chamber
According to the present invention, a fuel injection apparatus includes a high-pressure passage, a low-pressure passage, an actuator, a first and a second piston, a displacement amplifying chamber,...
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7518075 |
Energy accumulator
The invention relates to a novel energy accumulator for a load step switch for rapid, continuous switching between various winding tappings. Said energy accumulator comprises a lifting carriage and...
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7503313 |
Method and device for controlling an internal combustion engine
The invention relates to an internal combustion engine comprising a fuel supplying device. Said fuel supplying device comprises a low-pressure circuit provided with a low-pressure pump and a...
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7500471 |
Pressure accumulation-type fuel injection device and internal combustion engine provided with this pressure accumulation-type fuel injection device
A fuel injection start timing is determined based on the engine revolution or the engine load, and a common rail pressure is detected simultaneous to this fuel injection start timing. The fuel...
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7493887 |
Method for detecting preinjection
A method for detecting a preinjection in an internal combustion engine with a common-rail system, including individual accumulators, in which an individual accumulator pressure distribution is...
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7472690 |
Fuel supply apparatus for engine and control method of same
A fuel supply apparatus for an engine in which calculation of a manipulated variable of a fuel pump in response to a deviation between a fuel pressure detected by a fuel pressure sensor and a...
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7455049 |
Actuating mechanism for hydraulically driven pump-injector for internal combustion engines
Actuating mechanism for hydraulically driven pump-injectors for internal combustion engines specifically for diesels, which in order to reduce dimensions of pump-injector body, comprises pressure...
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7451743 |
Fuel injection system with accumulator fill valve assembly
A fuel injection system ( 10 ) having an accumulator ( 24 ) includes an accumulator fill valve assembly ( 20 ) that regulates pressure within the accumulator ( 24 ) for operation of injection...
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7437234 |
Method for adjusting an on-time calculation model or lookup table and a system for controlling an injector of a cylinder in a combustion engine
A method for adjusting an on-time calculation model or a lookup table used for determining on-time values for an injector of a cylinder in a combustion engine useful in a motor vehicle, where the...
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7431018 |
Fuel injection system monitoring abnormal pressure in inlet of fuel pump
A fuel injection system is equipped with a high-pressure supply pump driven by an output of an internal combustion engine to supply fuel to an accumulator, a low-pressure supply pump driven by a...
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7431017 |
Multi-source fuel system having closed loop pressure control
A fuel system for an engine is disclosed. The fuel system has a first source of fuel at a first pressure, and a second source of fuel at a second pressure. The fuel system also has a fuel injector...
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7426917 |
System and method for controlling locomotive smoke emissions and noise during a transient operation
A system and/or method of controlling smoke or noise emanating from a diesel engine wherein a throttle is drivingly coupled to the diesel engine, and wherein an operator of the engine changes a...
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7415964 |
Fuel injection control apparatus designed to minimize combustion noise of engine
A fuel injection control apparatus for a diesel engine is provided which works to determine the number of a sequence of injection events to inject fuel into the engine in each operating cycle of...
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7413160 |
Method for determining a closing time of a closing element and circuit arrangement
In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the...
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7401594 |
Damper mechanism and high pressure fuel pump
To obtain a small and high performance damper mechanism which reduces pressure pulsation in low pressure-side fuel in the high pressure fuel pump in a high pressure fuel supply system or a high...
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7398763 |
Multi-source fuel system for variable pressure injection
A fuel system for a work machine is disclosed. The fuel system has a fuel injector, a first source of fuel at a first pressure, a second source of fuel at a second pressure, and a pressure control...
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7395812 |
Fuel-injection system for an internal-combustion engine
The injection system comprises a high-pressure pump ( 7 ) with variable flowrate, having a number of pumping elements ( 18 ) actuated with reciprocating motion and provided each with a...
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7392793 |
Fuel injection controller
A fuel injection controller calculates a fuel pressure-feeding start angle of a fuel pump as a valve opening start angle of a metering valve, which regulates a discharge amount, by adding a base...
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7302935 |
Method for operating an internal combustion engine, fuel system, and volume flow control valve
The invention relates to a method for operating an internal combustion engine comprising a fuel pressure accumulator, in order to provide fuel at a nominal pressure, pressure in a fuel pressure...
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7296559 |
Accumulator fuel injection system
An accumulator fuel injection system has fuel pressure pulsation in a common rail caused by fuel injection suppressed in an extremely simple way with a low cost system and without using an...
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7281520 |
Arrangement for supplying fuel to the fuel injectors of an internal combustion engine
In a fuel supply arrangement for supplying fuel from a fuel tank to the fuel injectors of an internal combustion engine by an electrically operated fuel pump, a first fuel pressure level adequate...
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7278405 |
Fuel injection system designed to ensure enhanced reliability of diagnosis of valve
A fuel injection system for automotive diesel engine is provided which is equipped with a fuel pressure sensor working to measure the pressure of fuel in an accumulator and a pressure-reducing...
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7273037 |
Wire harness mounting structure for fuel distributor pipe
Wire harness mounting structure for fuel distributor pipe comprises at least one pair of first and second guide claws provided on an outer periphery of the fuel distributor pipe with having a space...
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7270115 |
Method for pressure regulation of an accumulator of a fuel injection system
In a method for the pressure regulation in a common rail fuel injection system of an internal combustion engine wherein pressurized fuel is supplied to the various combustion chambers of the engine...
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7252070 |
Fuel injection device for an internal combustion engine
A fuel injection system for an internal combustion engine and having a high-pressure fuel pump and a fuel injection valve for each engine cylinder. A first electrically actuated control valve...
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7234650 |
Three-way valve and fuel injection device having the same
A three-way valve having a valve chamber with a low-pressure port, a high-pressure port, and a control port is provided. The three-way valve also has a control valve installed in the valve chamber...
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7228846 |
Apparatus, system, and method for reducing pressure pulsations and attenuating noise transmission in a fuel system
An apparatus, system, and method of damping pressure pulsations and attenuating noise transmission in a fuel supply system. The apparatus includes a first end in fluid communication with a fuel...
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7228845 |
Fuel injection apparatus for internal combustion engine
A fuel injection apparatus has an accumulator, a booster, a nozzle, a hydraulic circuit, a hydraulic pressure valve and a control valve. At least one of a transmission path, which is connected to...
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7216629 |
High-pressure injection system with a control throttle embodied as a cascade throttle
A high pressure injection system comprises at least one fuel high pressure accumulator, a control chamber and a valve, in addition to an injection valve having a valve needle and a control piston....
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7204233 |
Common rail fuel injection system
A pressure-reduction valve that returns fuel in a common rail to a low-pressure system is such one that a valve-opening pressure of the valve device is changed by an actuator into a target common...
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7201147 |
Control strategies for a variable displacement oil pump
An internal combustion engine ( 30 ) has a fueling system comprising fuel injectors ( 36 ) that utilize oil under pressure to force fuel into engine combustion chambers. Oil is pumped to an oil...
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7185635 |
High-pressure accumulator for fuel injection systems with integrated pressure control valve
A fuel injection system for internal combustion engines includes a high-pressure accumulator acted on with highly pressurized fuel by a high-pressure delivery unit and in turn supplies fuel to fuel...
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7182069 |
High pressure fuel accumulator
A high-pressure fuel accumulator ( 1 ), in particular for a common rail injection system, has a housing ( 2 ) in which a pressure chamber ( 3 ) is inserted, and at least one inlet and at least one...
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7171944 |
High-pressure fuel pump control device for internal combustion
A high-pressure fuel pump control device for an internal combustion engine includes a feedback quantity calculating unit ( 602 ) for calculating a fuel discharge feedback quantity (QFB) of a...
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7143746 |
Fuel injection system
A fuel injection system for supplying pressurised fuel to a fuel injector, the fuel injection system comprising an accumulator volume for supplying fuel at a first injectable pressure level to the...
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7143576 |
Fuel injection control device of internal combustion engine
A fuel injection control device of an internal combustion engine includes fuel injection valve control means which calculates a basic fuel injection flow rate which becomes a target air-fuel ratio...
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7100577 |
Common rail directly actuated fuel injection valve with a pressurized hydraulic transmission device and a method of operating same
A common rail directly actuated fuel injection valve is disclosed with a hydraulic transmission device that is fluidly isolated from the fuel so that the hydraulic fluid can be different from the...
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7100573 |
Fuel injection system
The fuel injection system according to the invention comprises a nozzle ( 2 ) with an inlet and a needle ( 15 ). A control piston ( 16 ) forms a control chamber ( 17 ) and abuts the needle such...
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7093584 |
Fuel injector noise mufflers
Several embodiments of noise reduction apparatus for a fuel injector are disclosed and include perforated tubes, side branch filters and expansion chambers strategically located between a...
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7082928 |
Method for adjusting the duration of fuel injection through an injection valve
A method for adjusting the duration of fuel injection through an injection valve is performed according to the temperature of the injected fuel. When in an operational mode, fuel is injected by the...
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7066150 |
Fuel injection system for internal combustion engines
A fuel injection system with a fuel injection valve and a control valve, which control valve has a control valve member that can move longitudinally in a control valve bore. The control valve...
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7066149 |
Internal combustion engine fuel pressure control apparatus
An internal combustion engine fuel pressure control apparatus includes: fuel pressure control means including a spill valve and a high-pressure fuel pump that pressure-feeds fuel to an accumulation...
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