Rotary engine and cooling systems thereof

A rotary engine, comprising:

• housings secured to one another and conjointly defining a rotor cavity, the housings defining respective coolant passages fluidly connected in parallel to a source of coolant;
• a rotor rotationally received within the rotor cavity;
• and
• a cooling system including:
• a flow regulating device in fluid communication with the respective coolant passages;
• a heat exchanger facilitating heat exchange between the coolant and a heat-transfer medium;
• and
• a controller operatively connected to the flow regulating device, the controller having a processing unit operatively connected to a computer-readable medium having instructions stored thereon and executable by the processing unit to:
• determine, based on an engine parameter and an environment parameter of the rotary engine, a flow rate of the coolant to be injected towards the respective coolant passages to maintain the housings within a temperature range, the engine parameter indicative of a quantity of heat generated by the rotary engine, the environment parameter indicative of a quantity of heat the heat exchanger is able to transfer to the heat-transfer medium;
• and
• cause the coolant to flow towards the respective coolant passages at the flow rate.