TWO-STROKE DIESEL ENGINE Russian patent published in 2014 - IPC F02B75/32 

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises cylinder block 1, cylinder block unit, crankshaft, pistons fitted in said cylinders and engaged with crankshaft via rods and cranks, flywheel fitted on the latter, high-pressure pump, air pump, feed system, lubrication system, starting system and control mechanisms. Engine with even number of cylinders accommodate identical-design vibration mechanisms, one per every cylinder. Every one is fitted inside the piston and composed of two identical-diameter spur gears 29. Said gears 29 fitted on shafts 30 rotate in opposite directions are located vertically in one plane and interengaged. Every gear 29 has at least one balanced weight 32 at piston TDC located at the ends of line passing through the center of rotation of both gears 29. Driven gear 33 with teeth at one half of outer circle is fitted on axle of one of said spur gears 29. Said driven gear 33 is arranged between two vertical fixed racks 34 bolted to the cylinder to engage therewith in turns. Note here that vectors of inertial forces are directed along cylinder lengthwise axes and aligned with piston displacement.

EFFECT: origination of vibration forces directed in piston displacement.

16 dwg