CARBURATOR ICE FUEL FEED DEVICE Russian patent published in 2010 - IPC F02M37/00 F02M1/00 

FIELD: engines and pumps.

SUBSTANCE: proposed device consists of pipelines, fuel pump, carburetor, fuel tank, fuel tank filler neck plug, openings for discharge of vapour-gas-air mix and damper exhaust pipe. Device incorporates pneumohydraulic device designed to prevent creation of vacuum or excess pressure inside fuel tank, rubberised-cord elastic diaphragm secured inside fuel tank to separate fuel from air at excess pressure, compressor, electrically driven clutch to transmit rotation to compressor in braking the vehicle, two-way valve, diaphragm, spring, suction valve diaphragm, gearbox secondary shaft, gear, drive gear, p.t.o.-device, driven shaft, drive shaft, receiver, two-stage control valve to automatically maintain preset air pressure, ejector, gravitation filter for collection of dirt, water and withdrawal of vapour-air bubbles. Rubberised-cord elastic diaphragm inside has dead-end channel for withdrawal of vapour-gas-air mix communicated via through holes arranged on the side of fuel tank with vapour-gas-air mix and fuel and, via rubberised-cord elastic diaphragm, with pneumohydraulic device. Top above-diaphragm space in vertical plane communicates via two-way valve and two-stage control valve with pneumatic receiver. Bottom above-diaphragm space in vertical plane communicates with fuel tank filler neck via tips, and gravitation filter with pneumohydraulic device. Safety valve of pneumatic receiver communicates via pipeline with ejector rigidly secured on damper pipe. Driven shaft of electrically driven clutch is articulated with compressor work member.

EFFECT: higher efficiency and reduced fuel consumption of carburetor ICE fuel feed system.

12 dwg