Piston stroke sensor arrangement for a brake unit

A piston stroke sensor arrangement for a brake unit includes a brake unit including a piston and a piston tube, and a proximity sensor supported on the brake unit. The proximity sensor may determine the location of the piston within the brake unit based on the position of the piston tube relative to...

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Bibliographische Detailangaben
Hauptverfasser:	Finch Jr., Glyn A, Koon, Maria, Mathern, Peter D
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ARRANGEMENTS OR DISPOSITIONS OF BRAKES OR OTHER RETARDINGAPPARATUS IN RAIL VEHICLES BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAILVEHICLES DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS RAILWAYS TARIFF METERING APPARATUS TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A piston stroke sensor arrangement for a brake unit includes a brake unit including a piston and a piston tube, and a proximity sensor supported on the brake unit. The proximity sensor may determine the location of the piston within the brake unit based on the position of the piston tube relative to the proximity sensor. The proximity sensor may be an inductive proximity sensor. A groove may be defined in an outer circumferential surface of the piston tube. When the brake unit is in a non-applied position, the proximity sensor may detect metal of the piston tube. When the brake unit is in an applied position, the proximity sensor may not detect the metal of the piston tube.