An engine air intake manifold has two main body sections (1a, 1b) that are divided along an airflow direction and mated tightly against each other at oppositely facing mating parts (4a, 4b) so as to form an air intake passage (11) therein. A gas passage (9...

A method and apparatus for controlling the flow of gas through a passage (28, 60, 62, 64) between an engine crankcase (54) and an engine intake manifold (24) is provided. The method includes increasing the flow of gas through the passage (28, 60, 62, 64) w...

Device for recycling exhaust gas and gases from a crankcase breather pipe in an internal combustion engine via connecting pipes (2, 7) connected to the exhaust system of the engine uses a common fitting fixture (4). The common fitting fixture is a metal he...

The procedure for the running of an internal combustion engine entails guiding separately from each other the oil-laden air (60) drawn from the crankcase (30) and the returned exhaust gas (58) present in the intake tract to the inlet into the combustion ch...