FIELD: engines and pumps.
SUBSTANCE: pump base accommodates rotary locking device made up of flaps the channels of which accommodate fluid flow distribution system with check mechanism. Said base incorporates also locking device for said rotary locking device made up of recess to interact with retainer core provided with spring-loaded rod and electromagnetic coil. Rotary mechanism is arranged in said rotary locking device made up of gear wheel interacting with shaft gear, shaft being coupled with reduction gear and motor. Rotary locking device is provided with insert interacting via rolling or sliding elements with housing base and cover. Top working zone of check mechanism is communicated via channels with bottom working zone. Rotary mechanism shaft interacts via transfer device or directly with rotor.
EFFECT: expanded performances, higher reliability of seal, reduced weight and higher efficiency.
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