Abstract: A hybrid vehicle is capable of running using an engine and a motor as drive sources and includes an exhaust turbine to be driven and rotated by exhaust of the engine, and a generator which generates power by being driven and rotated by the exhaust turbine. The motor is driven by electric power generated by the generator.

Abstract: A bottom face of a cylinder head (3) defining a combustion chamber (1) is formed substantially in a shape of a spherical shell, and ignition points (21) are arranged in three or more on a concentric circle of 55 to 70% of a diameter of a cylinder block (30) or the vicinity thereof, and combustion is performed with an air excess ratio of the combustion chamber (1) of 1.5 or more.

Abstract: A V-engine having a plurality of cylinders (2) arranged alternately in two banks comprises a combustion chamber provided for each of the cylinders (2), an intake port (20) which connects the combustion chamber to an intake manifold (50), and an exhaust port (30) which connects the combustion chamber to an exhaust manifold (70). The intake ports (20) of the two banks are all configured so as to pass through one of the banks, and the exhaust ports (30) of the two banks are all configured so as to pass through the other bank. The angle formed by the two banks is set to eight degrees or less.

Abstract: Upon a drop in engine rotation speed, a direct current voltage which periodically changes is applied to coils of pole magnets 18u-18w, thereby causing an increase or reduction in the rotation speed of the second flywheel 21. When the rotation speed of a first flywheel 11 matches the rotation speed of the second flywheel 21, a current is applied to a coil 24 to displace the second flywheel 21 to the first flywheel 11 side such that the second flywheel 21 is connected to the first flywheel 11 via dog clutches 26. Thereby, the shock which is produced upon connection of a second flywheel is reduced, and slippage occurring during connection of a second flywheel is also reduced.