Patent ID: 7137402

Claim:
Oil deaeration device ( 10 ) that comprises a base ( 11 ) and an oil housing ( 26 ), said base ( 11 ) being equipped with a first and a second inlet ( 12 , 14 ), an outlet ( 13 ), a float ( 35 ) provided in the oil housing ( 26 ) and a diaphragm ( 18 ) provided in the oil housing ( 26 ), that the oil housing ( 26 ) is divided into two chambers ( 29 , 30 ), that the float ( 35 ) is provided in a first chamber ( 29 ), and that a further float ( 39 ) is provided in a second chamber ( 30 ), characterized in that the diaphragm ( 18 ) on one side is connected to the first chamber ( 29 ), that the diaphragm ( 18 ) on its other side is connected to the second chamber ( 30 ), that a safety valve ( 50 , 51 ; 150 , 151 ) is provided in connection with the outlet ( 13 ), and that the safety valve ( 50 , 51 ; 150 , 151 ) communicates with the outlet ( 13 ) in its open position.