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| Number | Title | Issue Date |
| 8176897 | Electronic pressure regulator The invention includes a very fast voice coil actuator, in the range of 2-5 millisecond full stroke response with high force, a circuit board located in the enclosure, a pressure sensor sensing pressure internal to the system which in the preferred embodiment is loc... | 05/15/2012 |
| 8171916 | Fuel supply systems A fuel supply system includes a fuel pump for supplying fuel in a fuel tank to an engine, a pressure regulator and a three-way valve disposed in a valve chamber. The pressure regulator includes a pressure regulating chamber and a control pressure chamber and adjusts... | 05/08/2012 |
| 8136506 | Electronic pressure regulator The invention includes a very fast voice coil actuator, in the range of 2-5 millisecond full stroke response with high force, a circuit board located in the enclosure, a pressure sensor sensing pressure internal to the system which in the preferred embodiment is loc... | 03/20/2012 |
| 8127746 | Pressure-controlling electromagnetic valve for distinct electromagnetic and hydraulic units The pressure controlling electromagnetic valve comprises an electric sub-assembly (1) provided with a coil (3) and the yoke thereof (4) associated with a hydraulic sub-assembly (2) provided with a seat (7), which a conduit (9 | 03/06/2012 |
| 8100112 | Fuel-supply quantity estimating apparatus and fuel injection system A variation waveform of fuel pressure is obtained by use of a fuel pressure sensor which detects pressure of fuel supplied to an injector. A quantity of fuel supplied to the injector is estimated based on a waveform of the detected pressure that is greater than a re... | 01/24/2012 |
| 8096284 | Method for determining a rail pressure setpoint value In a method for determining a rail pressure setpoint value for a high-pressure rail of an internal combustion engine, the rail pressure setpoint value is modified to a maximum degree using a maximum gradient for changing the rail pressure setpoint value, and the max... | 01/17/2012 |
| 8061331 | Fuel injector for internal combustion engine Disclosed herein is a fuel injector for an internal combustion engine, which includes a high pressure pump for pressure feeding high pressure fuel of the internal combustion engine; a fuel rail for accumulating the fuel that has been pressure fed by the high pressur... | 11/22/2011 |
| 8042520 | Engine startup fuel pressure control systems and methods A fuel pressure control system for a vehicle comprises a pressure regulator module and a pressure increasing module. The pressure regulator module regulates a fuel pressure supplied to an engine to a first predetermined pressure during an engine running period. The ... | 10/25/2011 |
| 8006668 | Electronic pressure regulator The invention includes a very fast voice coil actuator, in the range of 2-5 millisecond full stroke response with high force, a circuit board located in the enclosure, a pressure sensor sensing pressure internal to the system which in the preferred embodiment is loc... | 08/30/2011 |
| 7921827 | Accumulator fuel injection device To provide an accumulator fuel injection device, so as to stabilize the operation of a pressure control valve for controlling a fuel pressure in an accumulator. The accumulator fuel injection device includes a pressure control valve 6 for controlling the fuel... | 04/12/2011 |
| 7891342 | Method and system for controlling operating pressure in a common-rail fuel injection system, particularly for a diesel engine In a fuel injection system of an internal combustion engine that includes, but is not limited to injectors (I1-I4), each of which is adapted to deliver a predetermined amount of pressurized fuel to a combustion chamber of a respective cylinder (C1 | 02/22/2011 |
| 7775191 | Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine A fuel injection system operates under a predetermined substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level to another level on-demand instantly. This superimpose... | 08/17/2010 |
| 7721712 | Pressure regulating valve A pressure regulating valve in a fuel injection system for internal combustion engines for regulating the pressure in a fuel reservoir in which the operating pressure is adjusted by the dimensioning of an adjusting disk, whose function-determining axial height is as... | 05/25/2010 |
| 7712453 | Depressurizing valve and fuel injection device An object of the invention is to provide a depressurizing valve mounted to a common rail for a fuel injection device, in which a direction of a connector for the depressurizing valve can be adjusted, without affecting an air gap and a sealing performance. The depres... | 05/11/2010 |
| 7661409 | Operating method and device for a gas-operated internal combustion engine The invention relates to an operating method and to a device for a gas-driven internal combustion engine. According to the invention, the pressure in a gas injection system is adapted to the operational state of the internal combustion engine. A higher pressure is a... | 02/16/2010 |
| 7644700 | Fuel injection system for an internal combustion engine The fuel injection system has at least two electrically actuated control valves for controlling the fuel injection; the control valves are each connected via electric lines to an electric control unit. In the fuel injection system, terminal elements for connection o... | 01/12/2010 |
| 7624720 | Variable set point fuel pressure regulator A fuel pressure regulator is provided. The fuel pressure regulator includes a body forming an inlet and an outlet, a seal element positioned intermediate the inlet and the outlet, an armature positioned to apply force to the seal element, and a solenoid coiled aroun... | 12/01/2009 |
| 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 with that outputted from the battery to move the valve, and a controller... | 07/14/2009 |
| 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 that may lie between the jet pump supply orifice and the pressure reg... | 10/07/2008 |
| 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 power source other than the engine to suck the fuel from a fuel tank an... | 10/07/2008 |
| 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 regulated by operating closing timing for closing the discharge metering val... | 09/30/2008 |
| 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 flow control valve for controlling the fuel delivery rate of the hig... | 09/09/2008 |
| 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 injecting a liquefied gas fuel by an injector and supplying to an engine... | 08/05/2008 |
| 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 been simplified. ... | 07/15/2008 |
| 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 voltage applied to a solenoid coil (F) of a solenoid (44E),... | 06/17/2008 |
| 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 pressure regulating valve in the high-pressure region of the fuel injec... | 06/17/2008 |
| 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 turning off the internal combustion engine; a parameter characterizing th... | 06/10/2008 |
| 7370635 | System and method for resolving electrical leads A control system for controlling a device, the device having at least two functional elements, each functional element being controlled by a control signal, is disclosed in the present disclosure. The control system may include detecting means operatively connected ... | 05/13/2008 |
| 7367323 | Eight-cylinder engine An eight-cylinder engine including fuel injection valves provided for each of the eight cylinders. A first valve drive unit for driving four of the eight fuel injection valves to open and close by energizing the four fuel injection valves and a second valve drive un... | 05/06/2008 |
| 7353812 | Vehicle engine with integral vacuum generator An integral vacuum generator system for an internal combustion engine includes a throttle body and intake manifold defining a bypass passage which is connected with a vacuum manifold by both a venturi and a direct vacuum supply passage. Vacuum flow through the ventu... | 04/08/2008 |
| 7353798 | Fuel supply system for internal combustion engine A low-pressure delivery pipe provided with intake manifold injectors, a fuel pressure regulator, a high-pressure fuel pump, a high-pressure delivery pipe provided with in-cylinder injectors, and an electromagnetic relief valve are connected in series at the downstre... | 04/08/2008 |
| 7350510 | Fuel supply apparatus for internal combustion engine The engine ECU executes a program including the step of determining whether there is a possibility of occurrence of air bubbles within the high-pressure delivery pipe when there is an engine start request, the step of transmitting an open-instruction signal to the e... | 04/01/2008 |
| 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 unit (ECU) drives and controls a suction control valve provided in t... | 03/25/2008 |
| 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 flow rate of the fuel passing through the fuel filter. A positive pressu... | 03/18/2008 |
| 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 injectors and connected to the common rail. Each accumulator controller incl... | 02/26/2008 |
| 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 feature of primary piston assembly with a movable seal piston having a spec... | 02/26/2008 |
| 7331323 | Lubricating oil supplying system for internal combustion engine A lubricating oil supplying system for an internal combustion engine includes a lubricating oil storage section for storing lubricating oil. A driven pump is driven by the internal combustion engine to suck the lubricating oil from the lubricating oil storage sectio... | 02/19/2008 |
| 7328690 | Apparatus and method for accurate detection of locomotive fuel injection pump solenoid closure The invention relates to a system and method for detecting a closing of a solenoid. The system includes a capacitive charge circuit electrically coupled to the solenoid. The capacitive charge circuit conditions the current flow through the solenoid to increase the c... | 02/12/2008 |
| 7328687 | Fuel supply apparatus for internal combustion engine A fuel supply apparatus includes: a low-pressure fuel system applying pressure to a fuel in a fuel tank by using a first low-pressure pump and supplying the fuel to port fuel injection valves; a high-pressure fuel system applying pressure to the fuel in the fuel tan... | 02/12/2008 |
| 7328689 | Method for monitoring a fuel supply pertaining to an internal combustion engine The invention relates to a fuel supply device pertaining to an internal combustion engine. Said fuel supply device has a regulating device comprising a first regulator, which is provided with at least one integral part and which produces, in a first mode of operatio... | 02/12/2008 |
