FIELD: engines and pumps.
SUBSTANCE: invention relates to fluid transfer pumps. Pump comprises inlet, outlet and pressure chamber. Valve (17) is arranged between inlet and pressure chamber or between pressure chamber and outlet. Valve (17) has body (30), seat (32) and valve element (31a) interacting with seat (32). Valve element (31a) is prestressed relative to valve seat (32) at closed state of valve (17). Lift of valve element (31a) against prestressed state allows fluid flow in direction of delivery. Valve body (30) is arranged in seat (15c) of pump part (15).
EFFECT: decreased noise and vibrations.
9 cl, 3 dwg
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