Electropneumatic windshield wiper drive for a rail vehicle, drive for a windshield wiper and pneumatic system for operating a drive for a windshield wiper
A technology of pneumatic devices and driving devices, which is applied in vehicle cleaning, fluid pressure actuating devices, fluid pressure actuating system safety, etc., can solve problems such as high cost, and achieve the effect of low cost and compact structural space
Active Publication Date: 2015-09-09
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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Problems solved by technology
The construction of such a drive system is costly because a large number of special components are required
Method used
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[0064] In the following description of preferred exemplary embodiments of the present invention, the same or similar reference symbols are used for similarly acting elements shown in different figures, and a repeated description of these elements is omitted.
[0065] figure 1 A schematic diagram of an electropneumatic wiper drive system 100 for a rail vehicle according to an exemplary embodiment of the invention is shown. The electropneumatic wiper drive system 100 comprises a drive device 110 for the wiper, a pneumatic device 120 for operating the drive device 110 of the wiper, and a controller 130 for controlling the pneumatic device 120 .
[0066] The drive device 110 has a piston guide 140 with a first connection 143 and a second connection 146 , at least one piston 150 , a force transmission 153 connected in force to the at least one piston 150 , and a force transmission 153 with the force transmission. 153 force transmission connected wiper shaft 156. The piston 150 is...
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The present invention relates to a pneumatic system (120) for operating a drive (110) for a windshield wiper for a rail vehicle, said windshield wiper drive (110) having a piston guide device (140) that has a first connection (143) and a second connection (146) that is opposite said first connection (143). At least one piston (150) provided in said 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), said 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).
Description
technical field [0001] The invention relates to an electropneumatic wiper drive system for a rail vehicle, a drive for a wiper, a pneumatic device for operating the drive, a method for controlling a pneumatic device and a corresponding computer program products. Background technique [0002] On high-speed trains, an electropneumatic wiper drive system is preferably used due to the torque required and the available pneumatic compressed air supply. Known electropneumatic drive systems include a working piston and a control piston and, depending on the size and design of the drive system, a damping piston. The drive system carries out the wiper movement only by correctly switching on the compressed air supply. The construction of such a drive system is cost-intensive, since a large number of special components are required. [0003] Patent document DE4343216C2 discloses a pneumatic wiper drive system for rail vehicles, which has a working piston, a control piston, a locking ...
Claims
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Login to View More IPC IPC(8): B60S1/10F01B9/04
CPCF15B2211/8757B60S1/10F15B2211/7725F15B20/008F15B2211/8636F15B2211/665F15B2211/30565F15B2211/6336F15B2211/8855F15B15/065
Inventor G·德弗里斯G·诺尔W·马格洛特
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH