Internal combustion engine

An internal combustion engine which comprises

• a stator defining a circular cylindrical opening and having substantially diametrically oppositely disposed, first and second portions adjoining said opening, said stator being provided in said first portion with combustion-initiating means communicating with said opening and in said second portion with an intake port and an exhaust port communicating with said opening,
• at least one cylinder diametrically extending in and rotatably mounted in said opening and adapted to control said combustion-initiating means and said intake and exhaust ports and having an open end and a bottom closing said cylinder at its opposite end,
• a piston which is reciprocable in said cylinder and defines a power chamber with said open end and an air compression chamber with said bottom, said piston being adapted to move between a first dead center near said bottom and a second dead center opposite to said bottom,
• said combustion-initiating means being adapted to initiate the combustion of a fuel-air mixture in said power chamber,
• a transfer duct formed in said cylinder and adapted to connect said compression chamber to said power chamber when said piston is at said first dead center,
• an inlet valve connected to said transfer duct,
• a crankshaft operatively connected to said piston,
• a rotatable drive shaft connected to said cylinder and adapted to rotate the same, and
• torque-transmitting means arranged to rotate said drive shaft from a given position to a subsequent position which is angularly spaced 90.degree. therefrom in response to a rotation of said crankshaft from a given position to a position which is spaced 90.degree. therefrom in a sense which is opposite to the sense in which said subsequent position of said drive shaft is spaced 90.degree. apart from said given position thereof.