DIAPHRAGM MUSCLE-DRIVEN PUMP Russian patent published in 1995 - IPC

FIELD: pump engineering. SUBSTANCE: housing, having branch pipes and valving members, is provided with a diaphragm having rigid center constructed as flat washers mounted on both its sides. The diaphragm is connected with the driving lever and is clamped with a stop ring inside the housing. The diaphragm is corrugated and has a thickening at the site of conjugation with the housing. The diaphragm consists of two members provided with corrugations which are mirror image of each other. The diaphragm members define a torus-like space between them wherein a spiral is received. The valving members are made up as separate valving unit mounted outside of the pump. Suction and delivery valves of the pump are made in block and constructed as a pipe with a collar made of a resilient material and having a thickening in the middle part and thinnings at the ends. The collar is made at the thickened part. The spiral is made of a wire or a belt resilient material. The diaphragm is made of a rubber- cloth material. EFFECT: enhanced efficiency. 3 cl, 3 dwg