Patent ID: 6802303
Filing Date: 2004-10-12
Classification: F01M

Abstract:
A valve arrangement for providing pressure control in a combustion engine (1) with a crankcase (11) to which crankcase gases are guided during operation of the engine, said valve arrangement comprising:valve means (15) for detecting the current pressure in said crankcase (11) and for opening and closing, respectively, a connection (35) between said crankcase (11) and a suction pipe (9) of the engine depending on said detected pressure; and said valve means (15) comprising: a first valve (19) that assumes a configuration between a first, opened position and a second, closed position depending on detected pressure in the crankcase (11), and a second valve (20) that assumes a condition between a first, opened position and a second, closed position depending on the condition of said first valve (19), and said second valve (20) opens said connection (35) when the first valve (19) assumes a closed position, and said second valve (20) closes said connection (35) when the first valve (19) assumes an opened position.