A device is disclosed herein which provides a domed cover of a combustion chamber enclosure applicable for use in Stirling Cycle engines, Ericsson Cycle engines, Rankine Cycle engines or other external combustion heat engine types which allows for the free flow of combustion air from the outer margins of the device toward the combustion air inlet in a vortexual fluid flow to achieve a more balanced stoichiometric ratio of the fuel/air mixture before ignition. This may be achieved by the employment of vanes to direct combustion air in a swirling vortexual flow as the combustion air enters the combustion chamber. Thermal barrier coatings and insulative materials may also be employed to minimize parasitic heat loss.

A device is disclosed herein which provides a domed cover of a combustion chamber enclosure applicable for use in Stirling Cycle engines, Ericsson Cycle engines, Rankine Cycle engines or other external combustion heat engine types which allows for the free flow of combustion air from the outer margins of the device toward the combustion air inlet in a vortexual fluid flow to achieve a more balanced stoichiometric ratio of the fuel/air mixture before ignition. This may be achieved by the employment of vanes to direct combustion air in a swirling vortexual flow as the combustion air enters the combustion chamber. Thermal barrier coatings and insulative materials may also be employed to minimize parasitic heat loss.

An internal combustion engine having an independent combustion chamber comprises a combustion chamber (1), an air inlet system (2), a material feeding system (3), and a working system (4). The air inlet system (2) and the combustion chamber (1) are connected together and configured to transport a compressed air to the combustion chamber (1). The material feeding system (3) and the combustion chamber (1) are connected together and configured to transport a fuel to the combustion chamber (1). The combustion chamber (1) has a fixed volume and has no movable wall such as a piston. The fuel continues to be burned in the combustion chamber (1) to generate a high-temperature and high-pressure gas, and chemical energy of the fuel is converted into internal energy of the high-temperature and high-pressure gas. The working system (4) and the combustion chamber (1) are connected together. The piston (21) of the working system (4) works to convert the internal energy of the gas into a mechanical energy.

An internal combustion engine having an independent combustion chamber comprises a combustion chamber (1), an air inlet system (2), a material feeding system (3), and a working system (4). The air inlet system (2) and the combustion chamber (1) are connected together and configured to transport a compressed air to the combustion chamber (1). The material feeding system (3) and the combustion chamber (1) are connected together and configured to transport a fuel to the combustion chamber (1). The combustion chamber (1) has a fixed volume and has no movable wall such as a piston. The fuel continues to be burned in the combustion chamber (1) to generate a high-temperature and high-pressure gas, and chemical energy of the fuel is converted into internal energy of the high-temperature and high-pressure gas. The working system (4) and the combustion chamber (1) are connected together. The piston (21) of the working system (4) works to convert the internal energy of the gas into a mechanical energy.