Gas separation – Mounted or supported for continuous motion – Differentially deflected system fluid constituents
Reexamination Certificate
2006-04-19
2008-03-04
Smith, Duane (Department: 1724)
Gas separation
Mounted or supported for continuous motion
Differentially deflected system fluid constituents
C055S407000, C055S423000, C055S424000, C055S426000, C095S270000
Reexamination Certificate
active
07338546
ABSTRACT:
In a centrifugal separator for cleaning gases generated by an internal combustion engine a housing defines an interior separation chamber. A centrifugal rotor is coupled for rotation to the housing and extends into the separation chamber. A drainage chamber is positioned adjacent the separation chamber and is delimited therefrom by a partition wall. A flow path is provided through which oil, separated from gases generated by the internal combustion engine and collecting on the partition wall, can travel from the separation chamber to the drainage chamber. A pump wheel is coupled to a shaft portion defined by the rotor and extends radially outwardly therefrom. During operation the oil, upon exiting the separation chamber, contacts the pump wheel. Centrifugal forces generated due to the rotation of the pump wheel cause the oil to be thrown into the drainage chamber. The pump wheel also minimizes the potential for oil resident in the drainage chamber to re-enter the separation chamber.
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Eliasson Thomas
Szepessy Stefan
Alfa Laval Corporate AB
Michaud-Duffy Group LLP
Smith Duane
Turner Sonji
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