Bolonkin rotary engine

A rotary apparatus comprising:

• a housing having an inner surface which is substantially annular, concave, toroid form;
• said form has a cross section area limited by four straight lines, for example, a rectangle form;
• a rotor rotatably mounted inside said housing, said rotor having a peripheral surface, a rotation axis, at last two rotor blades located on said peripheral surface of said rotor and extending substantially radial and outward from said peripheral surface of said rotor, each of said rotor blades is stationary relatively to said rotor;
• said blades have a form limited by four straight lines, for example, a rectangle form;
• at last two separating main valves peripherally disposed in said housing, each of said separating valves having a working edge sliding against said peripheral surface of said rotor;
• a displacement volume equal to a volume of a space bounded by an inner surface of said housing, said peripheral surface of said rotor, and outer surfaces of valves;
• said displacement volume is partitioned by said main separating valves and by said rotor blades at last into four working sections:
• suck, compression, extension, and exhaustion;
• said main valves have at least one slot, limited by straight lines, for example a rectangle form, appropriated to cross section of said main blade;
• means for driving each of said main valves, for example:
• mechanical, hydraulic, pneumatic, electrical, electronically systems, and their combination;
• means for coordinating passage of said rotor blades through said main separating valves, for example:
• mechanical, hydraulic, pneumatic, electrical, electronically systems, and their combination;
• an inlet port through which a working fluid enters the rotary apparatus;
• and outlet port through which said working fluid exits the rotary apparatus, for example, an elementary ducks;
• at least one bypass channel connected to said compression and extension sections by two bypass valves in ends of channel.