Rotary piston internal combustion engine and method for influencing its operation

摘要

A rotary piston internal combustion engine includes a two- curve housing, a triangular piston rotor in the housing and a pressure reservoir connected through a channel to the compression chamber, or volume, formed between the housing and rotary piston. Rotation of the piston rotor divides the compression volume into a main volume and an auxiliary volume of decreasing size, the channel being located to communicate with such auxiliary volume. A valve in the channel is opened and closed by a control system in variable synchronism with movement of the piston rotor. The control system includes a synchronous transmission adjustable in phase in response to temperature and/or pressure in the pressure reservoir, which in turn is influenced by throttling of inlet air to the engine, and such control system may include apparatus actuable to heat or cool the pressure reservoir, all to permit Diesel operation of the engine.PPA method of operating such an engine including dividing the air being compressed into a main volume and an auxiliary volume during the latter part of a compression stroke with the auxiliary volume thereafter being eliminated by further movement of the piston rotor, temporarily storing a part of the compressed air in the pressure reservoir by entrapping same in the auxiliary volume, adding the temporarily stored part of the compressed air during the next following compression stroke to the air then to be compressed and to particularly enable reliable Diesel operation of the internal combustion engine, carrying out the adding of the temporarily stored air in the final phase of the next following compression stroke.