| 摘要 |
FIELD: aeronautical engineering. SUBSTANCE: control system of propeller 1 has hydraulic pitch control mechanism 2 fitted with valve and jet, bearing 5, speed governor 6 and connecting passages. Innovation of invention consists in fitting the circulating jet in propeller control unit between end of valve and its bore connected with inner chamber 11 of bearing; other jet is mounted between outlet passage of valve and passage connected with inner chamber 11 of bearing 5 and line returning oil to case of engine reduction gear; valve is located radially relative to unit 8, with spring chamber 15 towards center of rotation of propeller. EFFECT: improved operation of bearings due to circulation lubrication. |
