| 摘要 |
FIELD: power engineering. ^ SUBSTANCE: electrohydraulic drive is intended for high-precision electrohydraulic systems of remote control. In volumetrical electrohydraulic drive, parallel to each of two make-up valves, an additional make-up valve is installed, which is adjusted to lower actuation pressure, compared to available one, and has higher slope of static characteristic, which is defined according to formula ^ where: Pact.1 - actuation pressure of the first and second make-up valves, Pact.2 - actuation pressure of the third and fourth make-up valves Qleak - maximum flow rate of leaks from manifolds in mode of control actions development, for instance harmonic ones, with a specified accuracy. ^ EFFECT: reduction of insensitivity area in electrohydraulic drive and related dynamic properties of tracking electrohydraulic drives. ^ 3 dwg |
