Alfa Laval Corporate Ab

Alfa Laval Corporation Ab

Leif Bengtsson

Thomas Eliasson

Stefan Szepessy

Kjell Klintenstedt

Jan Skoog

Ingvar Hällgren

Jan Setterberg

Nils-Gunnar Ohlson

Torbj&ouml;rn Larsen

Staffan Grandin

Jonas Hjelm

An apparatus for cleaning of crankcase gas coming from an internal combustion engine can be carried by and be releasably coupled to the combustion engine. For this purpose the apparatus comprises an adapter element, which can be connected with the combustion engine, and a housing, which can be releasably coupled to the adapter element and which delimits a separation chamber. The housing supports in the separation chamber a centrifugal rotor that is rotatable about a vertical rotational axis and is arranged for cleaning of the crankcase gas. The centrifugal rotor has a drive shaft extending downwards through a bottom in the separation chamber and into a drive chamber, in which the drive shaft carries a turbine wheel. A nozzle is arranged to spray pressurized lubricating oil against the turbine wheel for rotation thereof and of the centrifugal rotor. The adapter element is intended to abut against the combustion engine by means of an abutment surface, which has a first opening for receiving pressurized lubricating oil from the combustion engine and a second opening for returning to the combustion engine from the drive chamber lubricating oil having been used for driving of the centrifugal rotor. Said first opening communicates through a channel in the adapter element with the nozzle and said second opening communicates through an outlet channel in the adapter element with the drive chamber.

Apparatus for cleaning of crankcase gas

A flexible metal support device for a rotatable centrifuge rotor (2) provided in a frame member (1) by a bearing member (4). The support device comprises a support element (7) provided between the bearing member (4) and the frame member (1), and arranged to absorb relative movements between the centrifuge rotor and the frame member. The support element (7) comprises an inner mounting portion, essentially immovable in relation to the bearing member (4), and an outer mounting portion, essentially immovable in relation to the frame member (1). Moreover, the support element (7) comprises three flexible connecting portions which each extends between the inner and outer mounting portions and is arranged to absorb radial and axial relative movements between the centrifuge rotor and the frame member. Furthermore, the inner portion, the connecting portions and the outer portion form an integrated unit manufactured in one piece of metal material.

Flexible metal supporting device for a centrifugal separator

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Huddinge, Sweden

Leif Bengtsson