FIELD: engines and pumps.
SUBSTANCE: proposed system comprises pump to suck of fluid from tank (1) and to dispose it via metre-out pipe (4). Note here that said pump comprises cylinder (21) for piston (22) to reciprocate therein. Said cylinder has intake bore and one-way intake valve (17) to control fluid flow there through. Said cylinder has discharge bore communicated with metre-out pipe while discharge valve (27) controls fluid flow via said discharge bore. Note also that said allows a selective contact with discharge valve to retain it open at the start of downstroke travel and its closure at the other downstroke travel.
EFFECT: perfected feed system.
11 cl, 12 dwg
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