DEEP-WELL AIR-OPERATED DISPLACEMENT PUMP Russian patent published in 2010 - IPC F04F1/04 

FIELD: engines and pumps.

SUBSTANCE: proposed displacement pump comprises two working chambers communicated in turns with compressed air and vacuum pipelines and provided with suction and delivery channels with suction and delivery valves, float chambers and control unit. Pump consists of sections communicated by compressed gas, vacuum and waste gas through channels and electric circuit through channel. Float chambers are aligned with working chambers, furnished with magnetic float dual-action valves and reed level pickups electrically connected via control unit with air control valve. Additionally, proposed pump incorporates three-way valve with two positions "vacuum" and "waste gas" set in one of said positions in preparing the pump for operation. Control unit, two-way air control valve and pickups are connected to 24 V-electric circuit.

EFFECT: upwelling of gassy and still fluid with increased amount of impurities.

2 cl, 8 dwg