| 摘要 |
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 |
