| 摘要 |
The system (1) has a set of projection units or ejectors (28, 29) that is connected to an air receiver (10) provided in communication with a set of pneumatic jacks (2) comprising a front chamber (11) and a rear chamber (12). A piston (3) is displaced so as to cause filling of the air receiver. An evacuation unit (14) evacuates air contained in the rear chamber. A control valve (22) is controlled during opening so as to feed pressurized air to the set of projection units when a pressure threshold is reached in the air receiver. Independent claims are also included for the following: (1) a method for lubricating a wheel flange of a bogie (2) a bogie (3) a rail vehicle. |
