Patent application number | Description | Published |
20120060792 | BEVELED DAMPENING ELEMENT FOR A FUEL INJECTOR - A direct fuel injection cylinder for an engine of a vehicle includes a direct fuel injector disposed in an injector bore within a cylinder head. A beveled conical wave washer is disposed between a shelf in the injector bore and a shoulder of the direct fuel injector. During operation of the vehicle, the beveled conical wave washer is elastically deformed by radial displacement caused by absorption of high frequency energy from the direct fuel injector. Elastic deformation of the beveled conical wave washer may reduce noise which may be caused by impact of the direct fuel injector and the cylinder head. | 03-15-2012 |
20120138013 | DIRECT FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE WITH CONICAL RING INJECTOR ISOLATOR - A fuel injection system for an internal combustion engine includes a fuel injector pocket, formed within a cylinder head, for housing an injector which sprays fuel into a combustion chamber defined by the cylinder head and a piston crown. The injector is mounted with a conical isolator which is loaded at a lower, elastic rate during lower power operation, with the conical isolator being stacked solid between a tapered portion of the injector and a corresponding tapered portion of the cylinder head during high power operation of the engine and injection system. The isolator controls unwanted injector ticking noise, while protecting the integrity of the injector's tip seal by preventing excessive axial displacement of the injector during higher load operation. | 06-07-2012 |
20130213359 | FUEL PUMP WITH QUIET CAM OPERATED SUCTION VALVE - A fuel system including a high pressure fuel pump with a quite fuel metering valve is disclosed. In one example, the quite fuel metering valve may be cam driven. The fuel system may reduce engine noise and may provide operating modes that are different from other fuel systems. | 08-22-2013 |
20130213360 | FUEL PUMP WITH QUIET ROTATING SUCTION VALVE - A fuel system including a high pressure fuel pump with a quite fuel metering valve is disclosed. In one example, the quite fuel metering valve may be driven via a rotating motor. The fuel system may reduce engine noise and may provide improved fuel pressure control. | 08-22-2013 |
20130213361 | FUEL PUMP WITH QUIET VOLUME CONTROL OPERATED SUCTION VALVE - A fuel system including a high pressure fuel pump with a quite fuel metering valve is disclosed. In one example, the quite fuel metering valve may include a fuel volume control plate. The fuel system may reduce engine noise and may provide improved fuel pressure control. | 08-22-2013 |
20130247880 | VAPOR RECOVERY SYSTEM PURGE VALVE AND METHOD - A canister purge valve, fuel vapor recovery system, and method are provided. The canister purge valve may include an inlet port configured to be coupled with an inlet line to receive a fluid from a vapor-recovery canister. The canister purge valve may also include an outlet having two or more exit ports configured to be coupled with a common exit line to pass the fluid to an engine. In this way, improved mixing may be achieved without substantially increasing flow resistance and/or noise. | 09-26-2013 |
20130284153 | BEVELED DAMPENING ELEMENT FOR A FUEL INJECTOR - A direct fuel injection cylinder for an engine of a vehicle includes a direct fuel injector disposed in an injector bore within a cylinder head. A beveled conical wave washer is disposed between a shelf in the injector bore and a shoulder of the direct fuel injector. During operation of the vehicle, the beveled conical wave washer is elastically deformed by radial displacement caused by absorption of high frequency energy from the direct fuel injector. Elastic deformation of the beveled conical wave washer may reduce noise which may be caused by impact of the direct fuel injector and the cylinder head. | 10-31-2013 |
20140003966 | HIGH PRESSURE FUEL PUMP | 01-02-2014 |
20140076286 | PURGE VALVE NOISE ATTENUATION SYSTEM AND METHOD - A vapor purge valve in an engine is provided. The vapor purge valve includes a purge valve inlet, a purge valve outlet, and a muffler including a housing at least partially enclosing a diffuser in fluidic communication with the purge valve inlet and the purge valve outlet. | 03-20-2014 |
20140154100 | FUEL PUMP WITH METERING VALVE - A method for operating a fuel pump is provided. The method may include decreasing a pump chamber pressure, passively opening a metering valve coupled to a pump chamber in response to the decreasing, and while the metering valve is open, generating a rotational output via a motor, transferring the rotational output into an actuation force applied to the metering valve via a metering valve actuation device, and inhibiting the metering valve from closing via sustaining application of the actuation force. | 06-05-2014 |
20150027416 | ENGINE FUEL PUMP AND METHOD FOR OPERATION THEREOF - A method of pressuring fuel for a direct injection fuel system via a fuel pump in an engine is provided. The method includes, during a first mode, adjusting a magnetic solenoid valve (MSV) to control pump outlet pressure and during a second mode, deactivating the MSV and controlling pump outlet pressure via a noise-reducing valve assembly on an inlet side of the fuel pump. | 01-29-2015 |