Ford Global Technolgoies, LLC

Kevin William Plymale

Aed M Dudar

Mark W Peters

Dennis Seung-Man Yang

Paul Zeng

Abdelkrim Zouani

Ahsanul Karim

Robert Roy Jentz

Russell Randall Pearce

Scott Alan Bohr

David Martin

Patrick Brostrom

Mike Dong

Mohammad Usman

William Euliss

Charlie P Threadingham

Terry Vandenbrink

Keith Scott Koller

Michael Wene

Methods and systems are provided for operating an evaporative emissions system in a turbocharged engine. In one example, a method may include pulsing open a canister purge valve responsive to the turbocharged engine entering a boosted mode of operation. The canister purge valve may be opened for a duration long enough to close a check valve coupled between the canister purge valve and an intake of the engine.

Systems and methods for managing purge pathway pressure in turbocharged engines

Systems and methods are described for a canister purge valve. A method comprises rotating an armature within a valve body in the canister purge valve as the canister purge valve opens and closes during a purge operation. The armature is encircled at a first end by an elastomer seal with multiple angled wings that enable rotation of the armature about a central longitudinal axis during the purge operation.

Canister purge valve system

A method for a fuel system coupled to an engine comprising: under vacuum conditions, opening the fuel vapor canister purge valve, and generating pressure pulsations in a conduit coupled to the fuel vapor canister purge valve by opening and closing a fuel vapor canister vent valve one or more times while maintaining the fuel vapor canister purge valve open. In this way, contaminants and/or debris that may prevent the canister purge valve from closing completely may be dislodged and evacuated to the intake manifold.

Canister purge valve self-cleaning cycle

Systems and methods for a multi-path purging ejector are disclosed. In one example approach, a dual path purge system for an engine comprises an ejector including a restriction, first and second inlets, and an outlet, at least one break-point at the restriction or inlets, and a shut-off valve coupled to the outlet.

Multi-path purge ejector system

Systems and methods for a multi-path purging ejector are disclosed. In one example approach, a multi-path purge system for an engine comprises an ejector including a restriction, first and second inlets, and an outlet, and a shut-off valve hard-mounted to an intake of the engine and coupled to the outlet.

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.

Vapor recovery system purge valve 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.

Purge valve noise attenuation system and method

A low noise valve assembly () mitigates noise induced by near sonic gas flow encountering stagnant flow in the region of the valve (). An inlet tube () terminates in an annular chamber (). An outlet tube () has a generally annular valve seat () disposed within the chamber (). The valve () moves toward and away from a closed condition in direct contact with the valve seat (). The valve () includes an insert body () that is spatially segregated from direct contact with the outlet tube () while partially filling the flow channel () of the outlet tube () when the valve () is in its closed condition. The insert body () has a generally circular base with a diameter that is larger than the throat diameter (T), which is the internal diameter of the flow channel () adjacent the valve ().

Growing community of inventors

Canton, MI, United States of America

Kevin William Plymale