Rotary engine lubrication system

A rotary piston internal combustion engine including:

• an engine housing;
• an output shaft configured to rotate relative to the engine housing about an axis for transmitting power to parts to be operated;
• a rotary piston mounted eccentrically on the output shaft;
• a first bearing configured to support and facilitate rotation of the output shaft, the first bearing being sandwiched between a first pair of seals;
• and
• a second bearing configured to support and facilitate rotation of the rotary piston, the second bearing being sandwiched between a second pair of seals;
• and
• wherein the output shaft defines an internal path comprising a first section to allow a lubricating substance to flow between the first bearing and the second bearing in use, the internal path comprises a second section to allow the lubricating substance to flow between the second bearing and a third bearing in use, and the output shaft defines a bore which at least partially extends along the axis, the rotary piston internal combustion engine further comprising a first barrier member, the first barrier member being located in the bore between the first section and the second section, wherein the first barrier member is configured to direct flow of the lubricating substance from the first section into the second bearing.