Ford Global Technolgoies, LLC

Scott Lehto

Paul Zeng

Vince Paul Solferino

Patrick Brostrom

Giuseppe DeRose, Jr

Joseph F Basmaji

Kyi Shin Shiah

Michael Robert Kaput

Syed M Ahmed

Joseph Lyle Thomas

Stephen George Russ

Christopher Arnold Woodring

Jim Chern

David Robert Shelley

Simon Antonov

Jeanne Wei

Methods and systems are provided for reducing hot fuel vapor formation in a port injection fuel rail. In one example, a method may include operating a dual fuel injection system with at least a calibrated minimum amount of port fuel injection over a wide range of engine operating conditions, even as conditions change. A direct fuel injection amount is adjusted in accordance.

Methods and systems for port fuel injection control

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.

Fuel pump with quiet rotating suction 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.

Fuel pump with metering valve

An internal combustion engine direct injection fuel injector system includes a fuel rail which is welded to a fuel rail bracket. A fuel rail mounting sleeve has a flange and is bolted to the engine cylinder head. The bracket fits around the flange and is held in place by a steel washer and a pair of stepped isolator washers which are positioned in pockets formed on either side of the bracket. The isolator washers serve as springs which form a shock absorber between the bracket and cylinder head. Compression forces on the bracket and isolator washers are controlled by bolt tension.

Fuel rail mount

A direct fuel injection fuel system includes a fuel rail cap and a fuel injector received within the fuel rail cap. A clip extends through slots in the fuel rail cap and engages the fuel rail to support the fuel rail within the fuel rail cap. The fuel rail cap includes a groove adjoining the slots to accept a portion of the clip. The clip engages a shoulder on the fuel injector assembly. The shoulder may be on the injector body or on an adapter secured to the injector body.

Fuel injector mount

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.

Beveled dampening element for a fuel injector

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.

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Dearborn, MI, United States of America

Scott Lehto