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1. USRE038855 - Centrifugal separator with one or more internal contaminant barriers

Office United States of America
Application Number 10151020
Application Date 21.05.2002
Publication Number RE038855
Publication Date 25.10.2005
Grant Number RE038855
Grant Date 25.10.2005
Publication Kind E
IPC
B04B 9/06
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
9Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
06Fluid drive
B04B 7/12
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
7Elements of centrifuges
08Rotary bowls
12Inserts, e.g. armouring plates
B04B 7/00
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
7Elements of centrifuges
B04B 9/00
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
9Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
Applicants Filterwerk Mann &; Hummel GmbH
Inventors Cox Ian M.
Samways Andrew L.
Agents Crowell &; Moring LLP
Priority Data 9703684 21.02.1997 GB
Title
(EN) Centrifugal separator with one or more internal contaminant barriers
Abstract
(EN)

A centrifugal separtor for non-cohesive particulates, such as are found in transmission oils and hydraulic liquids, rather than the cohesive combustion products found within internal combustion engine lubricants, consists of a housing enclosing a vertical spindle on which spins a liquid reaction driven rotor container. The container is divided internally by inwardly extending partition wall into separate outflow chambers. Non-cohesive particulates which separate from the liquid, and are held against the peripheral side wall by centrigual force during rotation, slump therefrom in the absence of rotation and risk forming a slurry that gets carried to the outflow chamber. An upwardly extending, outwardly inclined barrier wall forms a contaminant retention region with a restricted neck defined by the separation of the barrier wall edge from the side wall, that permits deposits on the barrier wall to carry to the peripheral side wall and spread across it during rotation, and does not interfere with slumping absent rotation and inhibits the slumped material from being washed into the outflow before rotation recommences.