DIAPHRAGM PUMP Russian patent published in 2004 - IPC

FIELD: automotive vehicles, domestic and protection applications.

SUBSTANCE: proposed pump is designed for delivering liquids under pressure from barrels, canisters and other containers with plugs. Pump contains reciprocating working member, suction and discharge valves, suction and pressure pipelines. Working member is made in form of elastic corrugated diaphragm forming pump working chamber and provided with open bottom cylindrical from outside and with flange for pressure disk inside. Pump housing is made in form of cylindrical cup. Upper end of working chamber is closed and it can be connected to drive handle. Pump housing is divided by partition with center hole into two spaces. Upper space has bell for diaphragm base and side threaded hole with groove for sealing ring. Lower space has center groove for sealing ring. Free end of cur has groove for sealing ring and thread on its outer surface for barrel plug hole. Diaphragm is tightly connected to cup by means of bracing unions passed through hole in cup partition until its shoulders against sealing ring. Free end of union is turned into disk. Space of bracing union communicates with diaphragm space through longitudinal hole in union, and with upper space of cup, through cross holes in said union. Diaphragm space communicates with upper space of cup through longitudinal holes in pressure disk. Suction valve is located in space of bracing union. Discharge valve is located in space of pass union turned into side threaded hole of cup. Said valves are fixed by nipples turned into unions. Suction and pressure pipelines are made in form of hoses, being hermetically connected to free ends of nipples.

EFFECT: provision of nonpiston pump of simple design, small size and reliably sealed.

7 cl, 1 dwg