Multifuel engine with continuous combustion

• Grant number: 21/11412-4
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: April 01, 2023
• End date: December 31, 2023
• Field of knowledge: Engineering - Aerospace Engineering - Aerospace Propulsion
• Principal Investigator: Sebastião Cardoso
• Grantee: Sebastião Cardoso
• Company: Reflacaje Usinagem Industrial Ltda
• CNAE: Pesquisa e desenvolvimento experimental em ciências físicas e naturais ; Atividades profissionais, científicas e técnicas não especificadas anteriormente

Abstract

The Multi-fuel Engine with Continuous Burning (MMCC) is a new project, designed from basic knowledge of fluid flow and Thermodynamics. It is a lightweight, compact engine with high power/weight ratio. The basic project consists of a system of blade and rotary piston that harmonize with the air compression for positive displacement and compression ratio, which can meet values similar to those used in internal combustion engines. The basic design consists of a synchronized system of blades and rotary pistons that move, providing the air compression for positive displacement and compression ratio can meet values similar to those used in reciprocating combustion engines. The air, once compressed, enters the combustion chamber where it receives fuel injection. The air-fuel mixture with high temperature and pressure passes through the separation grid to the chamber where the burning is occurring. The burning is done at constant pressure, but there is a new rise in temperature during the process. The flue gases are then directed to the drawers on the pistons and expand until reaching the discharge window. The expansion of gases during the displacement of the piston performs useful work due to differences in areas, which are in the volume occupied by them. When the gases reach the exhaustion windows, the amount of movement causes an internal depression which will be maintained until the beginning of the inlet of air. The exhaust collector receives gas at high temperature and pressure higher than the atmospheric pressure, which suggests inserting a turbo compressor. One of the biggest advantages of the MMCC is the continuous combustion, without ties to homogeneity of the mixture or fuel thermal stability. The engine here has designed 12 pistons with small individual volumes, runs smoothly, has no segment rings and top losses of the blade can be compensated. (AU)