The gas Otto engine comprises a cylinder, in which a piston (1) is movable, and an externally generated gas-air mixture, which is combustible in a combustion chamber limited by a cylinder head, cylinder walls and a piston head (2). The piston head comprise...

A combustion chamber construction includes inlet and exhaust side sloping surfaces. The inlet side sloping surface is formed on one side of a pentroof apex portion as a boundary and which has an inlet port. The exhaust side sloping surface is formed on the...

A throttle valve opening control device (140) includes a drum which is connected to a throttle grip by a wire, an input shaft which is integrally mounted in the drum, an output shaft (151) which is connected to the input shaft by way of a power transmissio...

An intake apparatus for an internal combustion engine, including a partition (11) extending in a longitudinal direction of an intake port (5) so as to divide an inside region of the intake port (5) into a first passage (5A) and a second passage (5B), and a...

An intake apparatus for an internal combustion engine, including a partition (11) dividing an intake port (5) into a first passage (5A) and a second passage (5B), and a gas motion control valve (31) including a rotatable valve element disposed upstream of ...

Fuel is fed under pressure to a direct injection valve (DIV) on a cylinder head so as to deliver fuel directly into an internal combustion engine's (ICE) combustion chamber via the DIV. A supplementary injection valve (SIV) (17) in an ICE's intake area (18...