AUTOMATIC PRESSURE CONTROL SYSTEM IN PNEUMATIC SYSTEM OF TRACTION ROLLING STOCK Russian patent published in 2004 - IPC

FIELD: modification of piston compressor plants of traction rolling stock, for example, diesel traction rolling stock, on which the compressors are driven by a thermal engine.

SUBSTANCE: the automatic pressure control system has a pneumatic system connected to a compressor driven by the shaft of a thermal engine by means of a mechanical pressure regulator and a variable filling fluid coupling, inlet is connected to a regulating slide valve of oil feed to the fluid coupling, use is made of an oil pressure regulator containing a centrifugal compressor shaft rotational speed meter connected to the compressor shaft and to a membrane-valve system regulating the oil feed from the pressure source to the slide valve, which in its turn regulates the oil feed to the fluid coupling.

EFFECT: provided automatic maintenance of pressure in the pneumatic system of the traction rolling stock irrespective of air flow from the pneumatic system, temperature and pressure of free air.

4 dwg