Spray type combustion device

A combustion device comprising:

• an outer cylinder;
• an inner cylinder disposed within said outer cylinder to form an annular space between it and said outer cylinder, said annular space being supplied with air, said inner cylinder being formed with an air introduction opening through which the air within said annular space is introduced into a space defined inside said inner cylinder;
• a baffle plate secured to an end of said inner cylinder and radially outwardly extending toward said outer cylinder, forming a clearance between the periphery thereof and said outer cylinder;
• a restrictor plate secured to the end of said inner cylinder in a manner to close the opening of the inner cylinder end, said restrictor plate being formed at its central section with a central opening and a plurality of openings through which air within said inner cylinder flows out, said plurality of openings being through-holes and located around said central opening;
• a combustion cylinder connected to said outer cylinder and forming thereinside a combustion chamber adjacent said baffle plate and restrictor plate, said combustion chamber communicating through said clearance with said annular space and through said openings with said space defined inside said inner cylinder;
• and
• a fuel injection nozzle securely disposed inside said inner cylinder and so located that its tip section is close to said restrictor plate to define a restriction clearance between it and the periphery of said central opening to restrict air flow therethrough, said fuel injection nozzle being formed at its tip section with a nozzle opening through which fuel is injected to be supplied through said central opening into said combustion chamber.