FIELD: machine building.
SUBSTANCE: invention relates to machine building, specifically to devices for transmitting drive power. Power transmission device comprises first and second frictional engaging elements, wherein only one them can be engaged and other is disengaged. Device is selectively engaged so that either clutch (31) of forward drive or brake (32) of reverse drive is disengaged, when other is engaged. Clutch (31) and brake (32) overlap axially and are arranged above each other radially in internal/external arrangement. Device is equipped with sensors for measuring temperature of lubricating oil flowing in each frictional engaging element. Temperature sensor (9) is located on periphery of clutch (31) and brake (32). Main line (80) for lubricating oil is formed so that lubricating oil for cooling clutch (31) and brake (32) passes through clutch (31) and brake (32) in radial direction inside clutch (31) and brake (32) to temperature sensor (9).
EFFECT: simplified design.
6 cl, 9 dwg, 2 ex
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