| 摘要 |
FIELD: mechanical engineering. SUBSTANCE: step cylindrical bores are made parallel to the axis of shaft 4 inside a housing. The bores are in communication with high-pressure space 14 by way of the less diameter and with low-pressure space 15 by way of the greater diameter. The bores axially receive step cylindrical pistons 6 sealed in the bores by the greater and less diameters for permitting interaction of the end of the piston of less diameter with stator member 6. The diameters of the step bores are defined by relationships presented in the invention description. The step bores in housings 8 are hermetically separated by plugs 20 from the low-pressure spaces. The spaces defined between the end faces of pistons 16 and plugs 20 are in communication with the high-pressure and low-pressure spaces through passageways 23,24 and 25 in the housing and stop devices 26 and 27. EFFECT: enhanced reliability. |
