Solenoid assembly for an automatic transmission of a motor vehicle and related method

A solenoid assembly for an automatic transmission of a motor vehicle. The solenoid assembly includes a housing having a core opening passing vertically therethrough. A valve is mounted within the housing. The valve is operative in a vented state and a non-vented state. The valve includes a plunger m...

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Bibliographische Detailangaben
Hauptverfasser:	NASSAR, ROY S, NOGLE, THOMAS D, FAHS, MOHAMED, REDINGER, CHARLES J, STREETMAN, CHARLES K
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A solenoid assembly for an automatic transmission of a motor vehicle. The solenoid assembly includes a housing having a core opening passing vertically therethrough. A valve is mounted within the housing. The valve is operative in a vented state and a non-vented state. The valve includes a plunger movable between a first position for establishing the vented state and a second position for establishing the non-vented state. An armature is associated with the valve and is movable in response to the presence and absence of a magnetic field for selectively moving the plunger between the first and second positions. An electromagnetic arrangement for creating the magnetic field includes a core and an energizable coil. The core is inserted into the core opening from an underside of the housing. A first retaining member retains a portion of the core against the underside of the housing. A variable transducer is used to establish a reference plane including two upper surfaces of the coil. The transducer is used to adjust the armature relative to an associated valve such that a predetermined air gap is established between one of the upper surfaces of the coil and the armature.