| 摘要 |
FIELD: manufacture of pumps. SUBSTANCE: pump has body, cylinder, pistons connected by means of axle with link, intake and pressure valves in the form of laminated washers and system of holes. Pistons are manufactured in the form of monoblock and its butts are sealed by fluoroplastic collars with rubber rings. Intake and pressure valves are put into valve boxes anchored on ends of cylinder. Each inlet and outlet of valve box has pipe unions. Some pipe unions are used for inlet and others for outlet. Lower end of link is fixed in body with the aid of flexible flat plate mobile in plane of axis of oscillation to provide for clearance-free rocking of link. Link interacts via bearing with crank which carries impeller cooling cylinder. By combination of various versions of activation of stages of pump user can change structure of pump and switching circuit. One can obtain up to 5 and more versions of usage of pump. EFFECT: increased number of versions of usage of pump. 1 cl, 6 dwg
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