FIELD: mining.
SUBSTANCE: group of inventions relates to drilling. Power generator comprises housing with longitudinal axis; rotor, placed housing and made with possibility of rotation mainly around longitudinal axis in first direction relative to housing in response to supply of liquid to power generator; output shaft, at least partially placed inside housing and connected to rotor; and anti-revers bearing, placed radially between output shaft and housing and configured to support output shaft inside housing and provide output shaft rotation in first direction, but resisting rotation of output shaft in second direction opposite to first direction along longitudinal axis relative to housing.
EFFECT: protection of internal elements of hydraulic engine against damage is provided.
20 cl, 6 dwg
