POSITIVE-DISPLACEMENT PUMP Russian patent published in 1995 - IPC

FIELD: pump engineering. SUBSTANCE: working member made up as flexible bent flat plate and two supports for the ends of the plate are mounted inside the housing. The distance between the supports is less than the length of the plate. The working chambers are defined between the housing and plate. Each chamber is in communication with the sucking and delivery lines thought the sucking and delivery valves respectively. The housing is 8-shaped defining two additional working chambers and has a slot at the middle part. A plate passes through the slot. The ends of the plate are freely mounted in the V-shaped supports. The main working chambers are interposed between the slot and top support. The additional chambers are interposed between the slot and bottom support and have the passageways for connecting the left additional chamber with the right main chamber and right additional chamber with the left main chamber. The plate is made of a magnetically conducting material. The drive of the plate is made up as an electromagnet positioned near each chamber in the vicinity of the supports of the electromagnet. The electromagnet has the coil with the stator. The opposite poles of the stator are arranged inside the chamber. EFFECT: enhanced efficiency. 2 dwg