Patent · US Expired

Method of cleaning crankcase gas and a gas cleaning separator

US6755896B2 · kind B2 · utility

21Cited by

9References

10Claims

0Family size

Assignee

ALFA LAVAL CORPORATE AB · SE

Inventors

Stefan Szepessy · Stockholm, SE
Ingvar Hallgren · Stockholm, SE
Roland Isaksson · Vimmerby, SE

Key dates

Filing date	Oct 30, 2002
Grant date	Jun 29, 2004
Priority date	—
Expiry date	Oct 30, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/19
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

For cleaning of crankcase gas produced by an internal combustion engine use is made of a centrifugal rotor, that is journalled in a frame through two axially separated bearings. The centrifugal rotor is caused to rotate by use of part of it also as a rotor of an electrical motor. The electrical motor has a stator, which is kept non-rotating and is charged with electric current for rotation of the centrifugal rotor, the centrifugal rotor being kept journalled during its rotation only in the two bearings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.