The present invention relates to an electropneumatic windshield wiper drive for a rail vehicle, a drive for a windshield wiper and a pneumatic system for operating a drive for a windshield wiper.The windshield wiper drive (110) has a piston guide device (140) that has a first connection (143) and a second connection (146) that is opposite the first connection (143). At least one piston (150) provided in the piston guide device (140) is designed to carry out linear movements in opposite directions along the main direction of extension of the piston guide device (140) in order to bring about an alternating rotational movement of the wiper shaft (156). The pneumatic system has a supply connection (158) for a compressed air supply (160), the supply connection being connected to the first connection (143) via a first normal operation connection line (172) and a first emergency operation connection line (174) arranged parallel thereto and to the second connection (146) via a second normal operation connection line (176) and a second emergency operation connection line (178) arranged parallel thereto. A valve mechanism (180) is designed to couple the supply connection (158) to the first connection (143) via the first normal operation connection line (172) and to the second connection (146) via the second normal operation connection line (176) when the pneumatic system (120) is in normal operation, and to couple the supply connection (158) to the first connection (143) via the first emergency operation connection line (174) and to the second connection (146) via the second emergency operation connection line (178) when the pneumatic system (120) is in emergency operation in order to bring about the alternating rotational movement of the wiper shaft (156).
Electropneumatic windshield wiper drive for a rail vehicle, drive for a windshield wiper and pneumatic system for operating a drive for a windshield wiper
2015-09-09
Patent
Electronic Resource
English
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / F01B Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein oder mit Verdrängerwirkung, z.B. Dampfkraftmaschinen , MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES |
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