Electromechanical valve and method of assembly
AssigneeWalbro Corporation
InventorsBradley J. Roche, William E. Galka, David L. Speirs, Jeffrey C. Hoppe, Ernesto O. Basanez
Life of this patent
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Abstract
In at least some implementations, a method of assembling an electromechanical valve includes positioning the armature stop in a first position at a first distance from a valve seat, actuating the valve to move an armature away from the valve seat, providing a fluid flow to the valve, determining a fluid flow characteristic, and as a function of the fluid flow characteristic, moving the armature stop relative to the valve seat to a second position that is at a distance other than the first distance.
Claims18
A method of assembling an electromechanical valve, comprising:
- positioning an armature stop in a first position at a first distance from a valve seat, with an armature between the armature stop and the valve seat;
- actuating the electromechanical valve to move the armature away from the valve seat and into engagement with the armature stop;
- providing a fluid flow to the electromechanical valve;
- determining a fluid flow characteristic;
- and
- as a function of the fluid flow characteristic, moving the armature stop relative to the valve seat to a second position that is at a distance other than the first distance, wherein the armature stop is press-fit to a portion of a housing and the step of moving the armature stop is accomplished by pressing and slidably moving the armature stop relative to the portion of the housing or by pressing and slidably moving the portion of the housing to which the armature stop is press-fit.
A method of assembling an electromechanical valve, comprising:
- positioning an armature stop in a first position at a first distance from a valve seat, with an armature between the armature stop and the valve seat;
- actuating the electromechanical valve to move the armature away from the valve seat and into engagement with the armature stop;
- providing a fluid flow to the electromechanical valve;
- determining a fluid flow characteristic;
- and
- moving the armature stop relative to the valve seat if the fluid flow characteristic is outside of a predetermined threshold for the fluid flow characteristic, wherein the step of moving the armature stop is accomplished by pressing and slidably moving the armature stop relative to the portion of the housing or by pressing and slidably moving the portion of the housing to which the armature stop is press-fit.
A method of assembling an electromechanical valve, comprising:
- providing a housing having a cavity and a valve seat;
- inserting a bobbin including a wire coil into the cavity, the bobbin defining a passage aligned with the valve seat;
- inserting an armature into the passage such that the armature is movable relative to and engageable with the valve seat;
- positioning an armature stop relative to the passage in a first position at a first distance from the valve seat, with the armature between the armature stop and the valve seat and with the armature stop positioned to be engaged by the armature at an end of travel of the armature;
- actuating the electromechanical valve by providing electricity to the wire coil to move the armature away from the valve seat and into engagement with the armature stop;
- providing a fluid flow to the electromechanical valve;
- determining a fluid flow characteristic of the fluid flow into or out of the valve;
- and
- as a function of the fluid flow characteristic, moving the armature stop relative to the valve seat to a second position that is at a distance other than the first distance, wherein the armature stop is press-fit to a portion of a housing and the step of moving the armature stop is accomplished by pressing and slidably moving the armature stop relative to the portion of the housing or by pressing and slidably moving the portion of the housing to which the armature stop is press-fit.
Dependencies are inferred from the claim text.