FIELD: transport, aviation.
SUBSTANCE: redundant electrohydraulic drive is intended for flight vehicle control systems. The proposed drive is designed so that each valve cutting in the drive has a spool with an additional shoulder with a groove abutting on the said shoulder on the control chamber side. This groove, the electrohydraulic valve closed, makes pressure hydraulic line communicating with appropriate chambers of the hydraulic power control valve, thus allowing the valve and subsequent power piston motion to its extreme rear position. Note here that the power hydraulic control valve chambers, opposite the aforesaid ones, communicate via valve spool channel with the drain line.
EFFECT: higher reliability.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTICHANNEL BACKED-UP ELECTROHYDRAULIC DRIVE | 2005 |
|
RU2305800C1 |
| ELECTROHYDRAULIC UNIT | 2005 |
|
RU2298698C2 |
| STANDBY SERVO HYDROMECHANICAL DRIVE | 2008 |
|
RU2370411C1 |
| ELECTROHYDRAULIC ACTUATOR UNIT | 2005 |
|
RU2288133C1 |
| COMBINED DRIVE | 2007 |
|
RU2337856C1 |
| FOUR-PORT THREE-POSITION HYDRAULIC CONTROL VALVE WITH RESERVED ELECTRIC POWER CONTROLLED WHEEL STEERING DRIVE OF FRONT CHASSIS SUPPORT OF VEHICLE WITH HYDRAULIC DAMPER | 2007 |
|
RU2342283C1 |
| DUAL-MODE HYDROELECTRIC DRIVE WITH ADDITIONAL MODES OF OUTPUT LINK CROSSFEEDING AND DAMPING | 2011 |
|
RU2483977C2 |
| TWO-MODE ELECTRICALLY-DRIVEN HYDRAULIC DRIVE WITH IRREVERSIBLE PUMP | 2011 |
|
RU2484314C2 |
| UNIT OF COMBINED HYDRAULIC ACTUATORS | 2018 |
|
RU2685115C1 |
| STEERING SET | 2006 |
|
RU2313699C2 |
