FIELD: compressed air pressure control devices.
SUBSTANCE: invention relates to devices for controlling the pressure of compressed air in the pneumatic drive for controlling the pantograph of the rolling stock of railways. Device contains a pressure feedback assembly, which includes a housing inside which a metal bellows is placed. One end of the bellows is rigidly connected to the bushing installed in the housing and is fixed. Second end of the bellows is pressed by a cylindrical coil spring installed between the bushing and the second end of the bellows. Inside the spring there is a movable rod, on which a linear step actuator with a retractable rod is fixed, passing into the pneumatic distributor until it stops against the movable slide valve pressed by the second spring. Prestart heater is arranged on the housing of the pneumatic control valve with the possibility of heating.
EFFECT: simplification and unification of the design is achieved.
5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR CONTROLLING PRESSURE OF COMPRESSED AIR WITH CONTROL ACTION RESERVATION | 2015 |
|
RU2662333C2 |
| CONTROLLED CURRENT COLLECTOR OF TROLLEY BUS AND OVERHEAD CONTACT SYSTEM | 2006 |
|
RU2346830C2 |
| VEHICLE DOOR PNEUMATIC DRIVE WITH SLOTMAGNETICALLY SENSITIVE DEVICE AND ELECTRONIC ANTILOCK | 2005 |
|
RU2313457C2 |
| FIVE-LINE TWO-POSITION SPOOL-TYPE ELECTROPNEUMODISTRIBUTOR FOR ONE-SIDE CONTROL OF VEHICLE DOOR DRIVE | 2003 |
|
RU2242575C1 |
| PNEUMATIC HYDRAULIC DRIVE | 0 |
|
SU1028907A1 |
| METHOD OF AND PNEUMATIC CONTROL ACTUATOR TO CONTROL GUIDE MISSILE | 2003 |
|
RU2254501C2 |
| FIVE-LINE TWO-POSITION VALVE AIR DISTRIBUTOR OF VEHICLE DOOR DRIVE | 2000 |
|
RU2178055C1 |
| RESISTANCE WELDING APPARATUS | 0 |
|
SU1481002A1 |
| TRAILER-TRAIN COUPLING GEAR | 1994 |
|
RU2094282C1 |
| CURRENT COLLECTOR OF ELECTRIC ROLLING STOCK | 1991 |
|
RU2025315C1 |
