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, whose inlet is connected to a regulating slide valve of oil feed to the fluid coupling, use is made of a continuous-action microprocessor control connected to whose inputs by means of analog-to-digital converters is a pressure transducer, connected through a pipe-line to the pneumatic system of the traction rolling stock, and a compressor shaft rotational speed transducer connected to the compressor shaft, and the output of the microprocessor control is coupled via a digital-to-analog converter to an amplifier connected to the winding of the traction electromagnet directly connected to the measuring spring and the slide valve of 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