PUMP HOUSING UNIT, PUMP, SPRINKLER SYSTEM AND UNMANNED AERIAL VEHICLE Russian patent published in 2021 - IPC F04B53/16 F04B53/10 F04B53/04 

FIELD: pumps.

SUBSTANCE: group of inventions relates to pump housing assembly, pump, sprinkler system and unmanned aerial vehicle. Pump body assembly has drain hole (1235) in pump housing (12) and valve body (5) valve body part (51). Valve body part (51) is resilient. Valve body part (51) changes from normal to elastic deformation under fluid action in pump body (12). When valve body part (51) is in normal state, valve body part (51) tightly closes drain hole (1235) of pump housing (12). When valve body part (51) is in a state of elastic deformation, valve body part (51) does not close drain hole (1235) of pump housing (12). If there is fluid leakage due to tube damage in pump housing, fluid medium is drained from drain hole (1235) by means of valve core (5).

EFFECT: increased efficiency of pump operation, increased service life of pump.

10 cl, 11 dwg