DEVICE FOR PRESTARTING LUBRICATION OF PARTS OF INTERNAL COMBUSTION ENGINE Russian patent published in 2005 - IPC

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed device contains oil sump (crankcase), oil pump, hydraulic accumulator with housing and piston with rod, vacuum drive of hydraulic accumulator, hydraulic accumulator vacuum drive control pickup, electromagnetic, check and reducing valves. Rod of piston of hydraulic accumulator has free end and through hole along longitudinal axis to pass steam of vacuum drive shifted by diaphragm. Diameter of hole is larger than outer diameter of steam. Cavity for stem-stop is made on outer surface of rod. Surface of rod from cavity to free end is made in form of truncated cone whose smaller base is located on free end of rod. Through holes and stops are made on inner surface of housing of hydraulic accumulator. With stem-stop in cavity of piston rod, overpiston and underpiston spaces of hydraulic accumulator are connected through holes in housing with inner space of sump (crankcase) of engine. Guide is provided for straightline displacement of rod on one end of which stop in made over perimeter.

EFFECT: improved efficiency of operation of device irrespectively of duration of engine idling.

3 cl, 5 dwg