"ТРД-КАН21" INTERNAL COMBUSTION TORE-ROTOR ENGINE (VERSIONS) Russian patent published in 2008 - IPC F02B53/00 F01C9/00 

FIELD: engines and pumps.

SUBSTANCE: internal combustion tore-rotor engine (TRE) incorporates a power conversion unit, a unit to convert thermal power of expanding gases into mechanical power and auxiliary units and parts. In compliance with this invention the power conversion unit incorporates a tore-like cylinder accommodating two dual-action opposing rotor-pistons allowing a complete two-stroke working cycle with valveless parallel flow blowing and transmitting the torque to two coaxial shafts. Two rotor-pistons, to transmit the torque, are rigidly linked, each to its respective drive shaft arranged coaxially, one into another, so that the inner shaft runs in needle bearings in the outer one. Two drive shafts are made solid (one-piece design) and pass through the power conversion unit and through the entire engine to drive all auxiliary and actuating mechanisms. Here, note that outer shaft is provided with areal slots to allow the inner shaft segment key vibrations. Both rotor-pistons are provided with end face compression rings and spaces to force oil through them. The cylinder inner surface has transverse gas grooves, while its outer surface is provided with air cooling fins and/or a water cooling jacket. To force clean air into the cylinder receiver, a compressor with rotor blades opposing areal vibrations provided with suction and pressure valves, for examples, of the shutter-type. Here, note that the number of rotor blades exceeds that of rotor pistons in the power conversion unit. To synchronise areal vibrations of all the mechanisms in phase and amplitude and to lock vibrations to the housing constant area, a synchroniser is used containing two bevel gears coupled, each to its appropriate drive shaft, and some smaller gears, satellites, running on axles fastened onto the housing. To inject fuel into the combustion chambers, a plunger-type compressor driven by areal vibrations of the drive shaft cam and featuring a controlled fuel feed. To increase the power conversion unit cylinders supercharging with clean air, a mechanism designed to shut off the exhaust channel immediately nearby the cylinder is used. To start the engine, compressed air-operated cylinders can be used. Exhaust gases are forced onto the load gas turbine to run it with the following transfer of power to the actuating unit. One or several tore-rotor pumps are fitted on the engine drive shafts to pump over flowing media. The TRE versions have been considered.

EFFECT: higher engine efficiency.

13 cl, 24 dwg