Air dryer for air pressure plants chargeable by a compressor, containing at least one air storing container, especially for air pressure brakes of vehicles

Abstract

Abstract In the case of such an air drier a connectable regenerating device is assigned to a drying cartridge (3) containing a drying agent (7); by means of this the drying agent located in the drying cartridge (3) is regenerated, that is by means of the compressed air from the compressed air system the damp drying agent is passed through and the bound water extracted from this before it passes out into the open air preferably via a ring filter and an exhaust valve. The regenerating device has a timed switch which can be switched on by the control pressure of a pressure regulator preferably incorporated on the device in order to initiate regeneration at pre-determined time intervals. The switch (45) contains a piston (43) to which compressed air can be admitted when the control pressure of the pressure regulator is reached, which piston, as a function of a link motion in predetermined stages and by means of a valve plunger (59) opens a connection which allows the compressed air to flow back out of the compressed air system through the drying agent (7) in the drying cartridge (3). The piston (43) acts in concert with a connecting member rotatable according to the piston movement, which member in a predetermined angular position carries the valve plunger (59) with it, thereby opening the connection for initiation of the regeneration. <IMAGE>

Inventors

• 👤 Hans Unger

Bibliographic Details