ROTARY ENGINE LUBRICATION SYSTEM USING INTENSIFIER INJECTOR

A rotary internal combustion engine (ICE) (12) has: a housing (32) defining a rotor cavity (32a); a rotor (34) received within the rotor cavity (32a) to define working chambers (40) of variable volume around the rotor (34), the rotor (34) having circumferentially spaced peripheral apex seals (56) biased radially outwardly in sliding engagement against a peripheral wall (38) of the housing (32) to separate the working chambers (40) from one another, the housing (32) having a fluid passage (70; 170) defined therethrough and opening into an inner surface (38a; 138a) of the peripheral wall (38); and an injector (120) having a lubricant inlet (120b) hydraulically connected to a lubricant source, an actuation inlet (120a) hydraulically connected to a source of an actuation fluid, and a lubricant outlet (120c), the injector (120) having an open state in which the lubricant outlet (120c) is in fluid flow communication with the fluid passage (70; 170) upon the actuation fluid being received within the injector (120) and a closed state in which the lubricant outlet (120c) is disconnected from the fluid passage (70; 170).