SU67242A1 - Dual Mode Steam Air Pump Regulator - Google Patents

Description

The invention (relates to the improvement of the known two-stage pump stroke controllers setting two different pressure limits in the main tank depending on the magnitude of the pressure in the brake line — a lower one — with a normal charge value of the pressure in the line corresponding to the train position of the driver’s crane handle and at an increased, against the charge, value of pressure in the 1-line, corresponding to the temporarily disposed position of the handle of the driver's crane, and higher, at a reduced value of pressure According to the invention, such an operation of the regulator is carried out by applying two valves to the diaphragm chamber of the regulator regulator, on the path of the air from the main tank to the diaphragm chamber of the regulator, when the brake is open, it interrupts this message when the pressure drop in the line during braking, and the second opens only when the pressure is exceeded

in the main tank against the maximum preset.,

In FIG. 1 and 2 schematically depict two embodiments of the regulator according to the invention. Both embodiments contain an existing single-mode pump stroke regulator (shown in Figs. 1 and 2 on the right) with a spring-valve device added to it (shown in Figs. 1 and 2 on the left).

FIG. Figure 1 shows two 4 to 7 valves located on the Two parallel branches of the air path from the main tank to the jiafragment chamber (A. of the regulator. Of these, valve 4 is loaded with i spring 3, and valve 7 with its shank rests on diaphragm 5 loaded from valve air pressure of the diaphragm chamber of the regulator, and t of the opposite side - air pressure of the line and spring pressure 6. 9 of the main regulator is adjusted to a pressure of 6 atm.; Spring 3 acts on valve 4 with a force of 2 atm with respect to the valve area. Agma 5 experiences the pressure of the trunk and spring 6 calculated for 1.2 atm with respect to the working area of the diaphragm 5. When the driver / crane operator's knob is in the traveling position, the pressure in the chamber A is not higher than 6 atm. Pressure under the diaphragm 5 equal to the pressure of the pipeline 5 atm plus the force of the spring 6, equal to 1.2 atm. Therefore, a pressure of 6 atm will be maintained in the main tank in accordance with the adjustment of the spring 9 of the main regulator. With the brake positions of the driver's crane handle, the valve 7, due to the reduced main pressure under the diaphragm, is closed. , Through valve 4, loaded with spring 3, pressure does not flow into chamber A. The pump continues to work, raising the pressure in the main tank to 8 atm. When this pressure is reached, valve 4 will let 6 atm into chamber L. When the pressure in chamber A is 6 atm, the regulator valve 8 will open and the pump will (stop. In the variant shown in Fig. 2, two valves 4 and 7 are replaced by one valve M, which is exerted in-the side to close the spring pressure, and open - spring pressure 6 and {air pressure of the line to the area of the diaphragm 5 transmitted through the pusher W. This variant works quite similarly to the variant of Fig. 1. The subject of the invention 1. The dual-stage regulator of the steam-air pump in the automatic system (in railway brakes, which establishes during the braking period the increased pressure of the air in the main tank (and equipped with a spring-valve device that is adventurous to a typical pump stroke regulator and provides a dual-mode regulator, characterized in that pressure of the main tank when the brakes are released, are located in the way of the air from the main tank to the standard controller, that one of Being open when the brake is released, terminates this message when -padenii line pressure during braking, and the second connection opens the main tank to the model: only when the regulator pressure is exceeded it against a predetermined maximum. {2. The form of performing the two-mode regulator according to claim 1, characterized in that the valve 7 interrupts the communication of the main tank with the standard regulator when the pressure in the line drops during braking, connected to the diaphragm 5 loaded on one side with an adjustable spring 6 and pressure in the highway, and on the other - air pressure in the main tank. 3. The form of performing the two-mode regulator according to claim 1, characterized in that the valve 4, opening the message of the main tank with the type | regulator when the maximum pressure in the main tank is exceeded, is loaded on one side regulated by the maximum pressure in the main tank 3, and on the other - air pressure in the main tank.

FIG. I

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FIG. 2

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