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Document Title |
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7606656 |
Process for automatically controlling the rail pressure during a starting operation
A process for automatically controlling the rail pressure (pCR) in an internal combustion engine with a common-rail system during the starting operation, the process including: calculating control...
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7603986 |
Fuel adjustment and filtering device for a high-pressure pump
A fuel adjustment and filtering device for a high-pressure pump of a fuel injection system, the device comprising at least one filter, comprising a removable filter cartridge, comprising 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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7559311 |
Solenoid operated valve device designed to ensure high responsiveness of valve action
A solenoid-operated valve device is provided which includes a valve, a solenoid actuator designed to be supplied with electric power from a battery to operate on voltage substantially identical...
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7497203 |
Avoidance of spark damage on valve members
An apparatus is provided for suppressing spark damage to components of a solenoid operated valve assembly. The assembly may include a solenoid having a solenoid coil and an armature movable under...
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7454283 |
Method and engine control unit
A method for approximating a stored pilot control map of a pressure control valve of a common-rail pump to the effective of pilot control map of the pressure control valve is presented. The stored...
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7444988 |
Accumulation-volume fuel injection system for an internal-combustion engine
The injection system ( 1 ) comprises a pump ( 7 ) designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail ( 6 ), for supplying a plurality of injectors...
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7431020 |
Adaptive fuel delivery module in a mechanical returnless fuel system
A returnless fuel system has a fuel pump whose speed is varied by varying the voltage across the fuel pump. Controlling the fuel pump speed entails sensing the back pressure with a pressure sensor...
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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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7428894 |
Fuel pressure controller
A fuel pump suctions fuel from a fuel tank and discharges the fuel. A discharge metering valve regulates an amount of the discharged fuel out of the suctioned fuel. The discharged amount is...
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7422002 |
Method and apparatus for controlling a fuel injection system for an internal combustion engine in a vehicle
A method and a device for controlling a fuel injection system for an internal combustion engine of a motor vehicle, whereby the internal combustion engine has a common rail, a high-pressure pump, a...
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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...
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7398764 |
Fuel metering unit for the fuel injection system of a combustion engine
Disclosed is a fuel metering unit for high-pressure pumps of fuel injection systems, whose leakproofness in zero delivery operation has been further improved and whose manufacture and assembly have...
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7387289 |
Method and apparatus for driving a solenoid proportional control valve utilized for flow rate control
In a method for driving a solenoid proportional control valve ( 44 ) used for flow rate control of a common rail system pump adapted to regulate flow rate by regulating the duty ratio of a pulse...
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7387109 |
High-pressure fuel pump for an internal combustion engine
A high-pressure fuel pump for an internal combustion engine is proposed, in which the regulating behavior in idling and lower partial-load operation is improved to such an extent that a separate...
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7383804 |
Procedure to recognize a depressurized fuel system
A procedure to recognize a depressurized fuel system of a motor vehicle with an internal combustion engine that includes a parameter characterizing the fuel system temperature is acquired when...
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7347188 |
Controller for common rail fuel injection system
In a common rail fuel injection system, a fuel pump pressure-feeds fuel to a common rail, which accumulates the fuel at high pressure corresponding to fuel injection pressure. An electronic control...
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7343901 |
Fuel supply device
A fuel filter is located downstream of a feed pump to filter fuel discharged from the feed pump. An orifice is located between the fuel filter and a suction quantity control valve to restrict a...
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7334770 |
Solenoid isolation valve
An improved pilot-operated, “instant-on”, solenoid isolation valve discloses a new fluid passage route to save cost of drilling a longitudinal hole within the primary piston. Also, a new...
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7334570 |
Common rail fuel injection system with accumulator injectors
A fuel injection system for an internal combustion engine includes a common rail, a plurality of accumulator injectors, and at least one accumulator controller separate from the accumulator...
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7320311 |
Pressure boosting common rail fuel injection apparatus and fuel injection control method therefor
A fuel injection valve ( 10 ) with a pressure boosting unit is provided in an engine ( 1 ), and boosted pressure fuel injection is performed by increasing a pressure of fuel supplied to a fuel...
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7318415 |
Controller of in-cylinder injection engine
If a high-pressure pump discharges fuel in an injection waiting period from injection setting to injection start, fuel pressure to occur at injection start time is estimated and a fuel pressure...
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7318414 |
Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine
A fuel injection system operates under a substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level...
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7281517 |
Internal combustion engine provided with double system of fuel injection
A double system of fuel injection type internal combustion engine includes: a direct injection injector and a port fuel injection injector; a control unit for changing a fuel injection distribution...
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7240667 |
Method and apparatus for controlling the pressure in a common rail system
In a common rail operating method and system, an arrangement for controlling the rail pressure is provided with a rail pressure controller including a current control circuit for controlling a...
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7216669 |
Pressure regulating valve for common rail fuel injection systems
A pressure regulating valve for regulating the pressure in a common rail with a pistonlike valve member which is guided axially displaceably in a bore and acts in the closing direction on a closing...
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7216628 |
Fuel injection apparatus having common rail and subject device control system
An ECU controls an intake metering valve and sets an upper limit of an integral term, which is obtained based on a pressure difference between a target rail pressure and an actual rail pressure of...
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7201154 |
Flow sensor for purge valve diagnostic
An apparatus and a method for managing fuel vapor pressure in a fuel system that supplies fuel to an internal combustion engine. The fuel vapor pressure management apparatus performs leak detection...
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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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7165527 |
Control 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...
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7163001 |
Method and device for controlling the volumetric flow in a fuel injection system of an internal combustion engine
A method and device control a volumetric flow in a common rail injection system of an internal combustion engine by producing a rail pressure with a high pressure pump, setting the rail pressure...
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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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7131426 |
Fluid flow rate control valve, anchor for mover and fuel injection system
To effectively prevent uneven wear of a moving mover 70 and to stabilize the control characteristics by a valve. Rotation force is exerted to the mover 70 by the fluid flowing from the first...
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7124740 |
Fuel injection control device for internal combustion engine
In feedback control of a discharge amount of a high pressure fuel pump in which an actual fuel pressure is caused to become a target fuel pressure, when a deviation between the target fuel pressure...
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7121264 |
Adjustable pressure regulating valve for fuel injection systems
A fuel injection system for internal combustion engines including a high-pressure reservoir which is acted upon by fuel at high pressure via a high-pressure feed unit and supplies fuel injectors...
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7086383 |
Permanent magnet digital purge valve
A purge valve is in fluid communication between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The purge valve includes a body, a seat, a head, and a...
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7077111 |
Variable purge orifice assembly
A variable purge orifice assembly for an evaporative emission system of a vehicle includes a housing for fluid connection to a vapor canister and a purge solenoid of the evaporative emission...
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7044111 |
Purge valve having permanent magnet armature
A purge valve for an evaporative emission control system. The purge valve includes an actuator, a valve body, and a valve closure member disposed in the valve body. The actuator is disposed along a...
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7040291 |
Method for regulating the pressure in a fuel accumulator of an internal combustion engine
A method for regulating the pressure in a fuel accumulator of an internal combustion engine, in particular in a common rail system is described. The provision of different regulating modes for...
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7025050 |
Fuel pressure control device for internal combination engine
A fuel pressure control device includes a fuel injection valve, a pressure accumulation chamber for storing a high pressure fuel, a high pressure pump, a fuel pressure control valve, a fuel...
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7025028 |
Method for controlling and adjusting the starting mode of an internal combustion engine
For controlling and regulating the startup operation of an internal combustion engine ( 1 ) a method is proposed in which a rail pressure is compared with a limit value on activation of the startup...
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7007670 |
Fuel injection device
In a state in which a high-pressure control solenoid valve is driven to control the pressure in a common rail (refer to Step S 100 ), when the pressure in the common rail exceeds a predetermined...
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6990958 |
Injection control system of diesel engine
An electronic control unit (ECU) of an injection control system of an internal combustion engine determines that a load of a fuel pump is stabilized when a pressure-feeding operation delay elapses...
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6976474 |
Mechanically actuated, electronically controlled fuel injection system
A fuel injection system includes a fuel pressurizer that may be cam actuated. The fuel injection system also includes an electronically controlled spill valve and an electronically controlled...
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6976473 |
Fuel injection system for an internal combustion engine
The fuel injection system has a high-pressure pump, by which fuel is pumped into a reservoir, with which injectors disposed on cylinders of the engine communicate. A feed pump pumps fuel out of a...
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6964262 |
Accumulator fuel injection system capable of preventing abnormally high pressure
An accumulator fuel injection system 1 comprises a PC sensor 21 for detecting a common rail pressure, a pressure limiter 22 for keeping the common rail pressure below a high limit pressure by...
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6932055 |
Engine control system for internal combustion engines
An engine control system for maintaining the operator-commanded speed setting of an internal combustion engine over a range of engine loads and for easy starting and improved efficiency over a...
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6920861 |
Fuel injection control devices for internal combustion engines
A fuel injection device includes a fuel injection valve for injecting fuel through a fuel injection orifice opening into a combustion chamber, an air injection valve for injecting air through an...
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6918376 |
Fuel supply device for an internal combustion engine
To provide a fuel supply device for an internal combustion engine including an ECU ( 22 ), in which, when the pressure in the fuel rail ( 2 ) is a high pressure greater than a maximum pressure (Pm)...
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6918367 |
Method for starting an internal combustion engine, particularly an internal combustion engine having direct fuel injection
During a start, particularly during a cold start, of an internal combustion engine without additional auxiliary drive, a precisely metered fuel mass is introduced into a combustion chamber. In the...
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