| Patent application number | Description | Published |
|---|
| 20080302333 | Electromagnetic Drive Mechanism and a High-Pressure Fuel Supply Pump - The objective of the present invention is to dampen operating sounds of an electromagnetic drive mechanism used for a variable displacement to reduce an individual difference depending on apparatus due to the control mechanism in a high-pressure fuel supply pump change over time or installation tolerance. | 12-11-2008 |
| 20090093942 | Control device of high-pressure fuel pump of internal combustion engine - A control device of a high-pressure fuel pump of an internal combustion engine capable of improving stability in controlling the drive of the high-pressure fuel pump by limiting the end timing of a drive signal of the high-pressure fuel pump and driving an actuator in a control effective range of the high-pressure fuel pump. The control device of the high-pressure fuel pump of the internal combustion engine has a fuel injection valve provided on a cylinder and the high-pressure fuel pump for pumping fuel to the fuel injection valve, wherein the high-pressure fuel pump comprises a pressure chamber, a plunger for pressurizing the fuel in the pressure chamber, a fuel valve provided in the pressure chamber, and the actuator for operating the fuel valve. The control device has means for calculating the drive signal of the actuator so as to realize the variable discharge of the high-pressure fuel pump. The means for calculating the drive signal has means for limiting the end timing of the drive signal of the actuator to a predetermined phase and/or means for limiting the output timing of the drive signal of the actuator to be within a predetermined phase range. | 04-09-2009 |
| 20090120412 | Plunger Type High-Pressure Fuel Pump - A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into a hermetically closed space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the hermetically closed space and the external space formed by the anchor and the core, respectively when the suction valve is in an opened state. | 05-14-2009 |
| 20090235900 | CONTROL DEVICE OF HIGH-PRESSURE FUEL PUMP OF INTERNAL COMBUSTION ENGINE - A control device of a high-pressure fuel pump of an internal combustion engine capable of improving stability in controlling the drive of the high-pressure fuel pump by limiting the end timing of a drive signal of the high-pressure fuel pump and driving an actuator in a control effective range of the high-pressure fuel pump. The control device of the high-pressure fuel pump of the internal combustion engine has a fuel injection valve provided on a cylinder and the high-pressure fuel pump for pumping fuel to the fuel injection valve, wherein the high-pressure fuel pump comprises a pressure chamber, a plunger for pressurizing the fuel in the pressure chamber, a fuel valve provided in the pressure chamber, and the actuator for operating the fuel valve. The control device has means for calculating the drive signal of the actuator so as to realize the variable discharge of the high-pressure fuel pump. The means for calculating the drive signal has means for limiting the end timing of the drive signal of the actuator to a predetermined phase and/or means for limiting the output timing of the drive signal of the actuator to be within a predetermined phase range. | 09-24-2009 |
| 20090241908 | Controlling Apparatus of Variable Capacity Type Fuel Pump and Fuel Supply System - A controlling apparatus of a variable capacity type fuel pump, for avoiding noises caused due to drive of the fuel pump and noises caused due to drive of injectors from overlapping or duplicating with each other in the timing thereof, wherein signals for driving the pump reduced, or the timing thereof is shifted forward/backward, within a specific timing where the o overlapping can be prospected, or a specific timing where they are determined to overlap or duplicate with each other. | 10-01-2009 |
| 20100111734 | Electromagnetically-Driven Valve Mechanism and High-Pressure Fuel Supply Pump Using the Same - In a conventional configuration, a lead line weld joined portion | 05-06-2010 |
| 20110253109 | High-Pressure Fuel Pump - It is an object of the present invention to accurately position a cylinder of a high-pressure fuel pump with respect to an attachment fitting hole provided in an engine block of an internal combustion engine in mounting the pump on the engine block. | 10-20-2011 |
