LUBRICATION SYSTEM OF INTERNAL COMBUSTION ENGINE WITH AUTOMATICALLY CONTROLLED OIL SUPPLY Russian patent published in 2003 - IPC

FIELD: mechanical engineering; internal combustion engine. SUBSTANCE: proposed lubrication system of internal combustion engine contains oil sump, oil intake strainer, check valves, hydraulic accumulator, electromagnetic valve, ignition switch, oil filter, pressure regulator, main oil line, oil cooler, compressor and receiver. To provide automatic control of delivery and pressure of oil, lubrication system is furnished with two-stroke piston oil pump consisting of oil and gas chambers. Pump is operated by compressed air getting into gas chamber of piston pump through spool valve controlled by electromagnetic valve cut into operation at closing of contacts. Contact closing speed depends on pressure of air delivered through pressure regulator and receiver from compressor set into operation by internal combustion engine. Oil is taken and delivered into hydraulic accumulator from oil chamber alternately from its one part and other part and then oil is fed through electromagnetic valve, oil filter and oil cooler into main line. EFFECT: reduced power consumption for pump driving. 1 dwg