FIELD: mechanical engineering.
SUBSTANCE: combined pneumatic engine system with forced air supply from the heat exchanger boiler includes a pneumatic engine integrated with a compressor, including a cylinder-piston group, as well as a cylinder head with an intake and exhaust manifold system with a valve mechanism and an air compressor piston unit with an inlet and outlet assembly, driven by a crankshaft. The boiler-heat exchanger comprises a hollow cylindrical body mounted on support legs and includes a heating zone at the bottom with air supply openings and working zone at the top with a combustion products exhaust opening. A primary air heating boiler and a secondary solid fuel boiler are installed in the heating zone. A divider is installed throughout the length of the working zone, consisting of a cylindrical pipe with a cone at its end, tipped downwards. The working area of the hollow body contains an inlet and an outlet openings for inlet and outlet of the coil tube passing in a spiral along the entire height of the working area in the space between the hollow body and the divider. The air compressor inlet assembly includes an air intake opening. The air compressor outlet unit is connected to the inlet of the coil tube via a pipeline to inject air into it. The outlet of the coil tube is connected via a pipeline to the intake manifold system of the pneumatic engine to inject air heated to the operating temperature into it. The pneumatic engine exhaust manifold is connected via a pipeline to the combustion air supply openings of the primary air heating boiler and/or the secondary solid fuel boiler.
EFFECT: increased efficiency of the pneumatic engine with forced air supply from the heat exchanger boiler, increased efficiency and torque while keeping the system independent.
5 cl, 4 dwg
