FIELD: machine building.
SUBSTANCE: hydrodynamic coupling contains the pump (1) and turbine (2) wheels; the closed working medium loop (4); the accumulative cavity (8) located outside of the working cavity and outside of the closed working medium loop, and this accumulative cavity through the working medium conducting connection (9) outside of the working cavity is connected to the closed working medium loop. The wheels (1) and (2) form together the toroid-shape working cavity, filled with the working medium (3). The closed working medium loop (4) passes from the working cavity through the working cavity outlet (5), the external loop branch (6) and the working cavity inlet (7) back into the working cavity (3). The accumulative cavity (8) is implemented in the form of the closed cavity isolated with reference to environment and fitted with the control pressure connection (10) for the displacing load of working medium in the accumulative cavity (8) by the control pressure. The cavity (8) can be fitted with the air line for discharge into ambient air.
EFFECT: design cost decrease.
10 cl, 2 dwg
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