HYDRAULIC TRANSMISSION OF THE CARRIER AND STEERING PROPELLERS OF THE HELICOPTER Russian patent published in 2021 - IPC B64C27/12 B64D35/04 

FIELD: aeronautical engineering.

SUBSTANCE: invention relates to aeronautical engineering, in particular to designs of propeller drive systems for rotary-wing aircraft. The hydraulic transmission of the main and tail rotor of the helicopter contains hydraulic pumps, a block of hydraulic motors for driving the main rotor shaft (1), a hydraulic pump for driving the tail rotor and auxiliary systems, installed on the block of hydraulic motors (1). The block of hydraulic motors (1) contains the first housing (1.1) and the second housing (1.5), rotors (1.2), a distributor washer (1.3) or bulkhead (1.3a), couplings (1.4), a cover (1.6), the first timing gears (1.7) and the second synchronization gears (1.8), rollers (1.11). The hydraulic pump of the tail rotor drive and auxiliary systems (2) includes a rotor (2.9), a housing (2.10), rollers (2.14), a bulkhead (12), a rotor shaft (13). The number of hydraulic pumps and hydraulic drives is equal to the number of engines, and the rotor shaft communicates with the hydraulic motors through couplings.

EFFECT: increased reliability and resource of loaded units of the drive system, increased specific transmitted power, as well as increased resistance to vibrations and unwanted self-oscillations of the helicopter.

3 cl, 6 dwg

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