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Publication numberUS2650022 A
Publication typeGrant
Publication dateAug 25, 1953
Filing dateAug 24, 1950
Priority dateJan 6, 1950
Publication numberUS 2650022 A, US 2650022A, US-A-2650022, US2650022 A, US2650022A
InventorsFulton Hugh Wilson, Stead Edward Brian, More David
Original AssigneeGlacier Co Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Centrifuge for cleaning liquids
US 2650022 A
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Description  (OCR text may contain errors)

1953 H. w. FULTON ETAL 2,650,022

CENTRIFUGE FOR CLEANING LIQUIDS Filed Aug. 24-, 1950 FIG 1.

INVENTORS HUGH FULTON EDWARD asrisian BY A ID Mom wlz W 24042 ATTORNPZ Patented Aug. 25, 1953 7 UN TED STATES PA ENT OFFICE I I i. J t I .eEN'rRIFUG l 7 David More, Glasgow, Scotland, assignors, by mesne assignments, to The Glacier Metal Company Limited, Alperton,

. company.

England, a British Application August 24, esteem No. 181,178 5 I In Great Britain January 6, 1950' I This invention relates to improvements in centrifuges for cleaning liquids.

In the interests of brevity we shall hereafter assume that the liquid to be cleaned is engine oil, e. g., oil used for the lubrication of internal combustion engines.

Experience has shown that the most effective cleaner for lubricating oil is a centrifuge.

On the other hand, the use of a centrifuge ordinarily necessitates the employment of gearing and entails the drawback that the speed of rotation, if the drive is taken from the engine, varies with the engine speed. Considerable complication arises when an electric drive is employed.

Our invention contemplates the utilisation of the kinetic energy in the oil in circulation.

This energy is most efliciently utilised when the centrifuge is constructed as a rotary motor of the jet type according to the principle of Heros engine.

The oil may be fed through a branch from the main forced-feed lubrication system, or may be fed from a separate pump, or from a scavenge pump used for evacuating the crankcase, it being understood that in all cases the oil pressure is approximately uniform.

The oil is admitted axially into a drum rotatable on a vertical axis mounted preferably on ball bearings, said drum itself being contained in an outer casing which has a movable cover.

If the casing is disposed above the oil tank, then a-clear space is left between the bottom of the casing and the top of the oil tank.

Assuming that the drum is rotatable around a hollow vertical spindle, the lateral wall of the spindle is furnished with outlet ports through which the oil passes into the drum.

Leading from the bottom of the drum is or are one or more discharge nozzles having, or each having, a tangential setting. Suitably, each discharge nozzle is in the form of a curved elbow having a vertical portion within the drum and a horizontal portion between the drum and the tank.

In the rotation of the drum, jets of oil are discharged at high speed through the said nozzles, and, by reaction, the drum is caused to rotate at high speed.

The drum which constitutes the centrifuge is of such capacity that a large amount of dirt can be allowed to accumulate before the filter requires to be taken apart for cleaning.

Provision may be made for leakage along the 1Claim. (o1: 2as1 24),

upper spindle to a point above the said ports of any air that may have, entered the lubrication system so that such air may accumulate at the upper end of the drum, which thus acts not only as a centrifugal separator but also as a deaerator.

In arriving at the above described construction, We attempted also to use the kinetic energy in the oil by causing it to flow at high velocity from fixed nozzles to impinge on vanes attached to the drum which in this case was open to the atmosphere at the top and had a suitable outlet at the bottom. After leaving the vanes the oil was to fall into the drum and so be centrifuged, but we found this method to be ineificient compared with that which has been above described.

The invention will be further described in connection with the accompanying drawing in which:

Fig. 1 is a vertical sectional view of a centrifuge for cleaning liquids constructed in accordance with the present invention, and

Fig. 2 is a detailed sectional view on line 2-2 of Fig. 1 showing the construction of the discharge nozzles.

Referring to the drawing, the centrifugal i. cleaner or separator shown includes a casing I fitted with a removable cover 2 and mounted on top of an oil tank 3.

Within the casing I there is mounted for rotation about a vertical axis a drum 4 to the base of which are fitted oil discharge nozzles 5 in the form of curved elbows having tangential settings and arranged to discharge oil into a space. 6 within the base of the casing l. The space 6;; is in communication with the tank 3 through-.1 openings 1 in the cover of the tank 3. As clearly appears from the drawing, the open end of the upright portion of the nozzle tubes which ex-- tend above the bottom of the drum lies a sub-- stantial distance above the bottom of the drum. as well as a substantial distance inwardly from the vertical side wall thereof.

The drum 4 is mounted on ball bearings 8 on a hollow vertical spindle 9 to the lower end of which is connected an oil inlet branch piece Ill fitted with an inlet nipple connection II. The spindle 9 is ported at I2 in register with ports [3 in the boss M of the drum 4.

As will be understood, jets of oil are discharged from the nozzles 5 and, by reaction, the drum 4 is caused to rotate at high speed, thereby centrifugally cleaning the oil supplied to the drum so that clean oil is discharged through the nozzles 5.

We claim:

In a centrifugal oil cleaner for separating dirt 3 from oil including a casing and a cylindrical drum mounted within the casing for rotation about a vertical axis, said drum having top, bottom and side walls and being adapted to retain the dirt separated from the oil, fixed hollow vertical spindle extending axially through the top and bottom walls of the drum and on which said drum is mounted for rotation, the axis of said spindle being coincident with the axis of retation of said drum, means for conducting the oil to be cleaned to one end of the, hollow spindle, said spindle being provided with at least one lateral port opening into the interior ofthe drum for conducting oil to be cleaned from the hollow spindle to the interior of the drum, and at least one oil discharge nozzle tub ior the discharge: of clean oil from the drum including an upright portion in the drum extending above the bottom wall thereof and a portion projecting through the bottom wall of the drum and terminating below the drum in a discharge nozzle, the upright portion of the nozzle tube which extends above the bottom wall of the drum having an opening therein a substantial distance above the bottom of the drum a'nda substantial distance inwardly from the vertical side wall thereof, the portion of said nozzle tube projecting through the bottom wall of the drum having a tangential setting whereby said drum is caused to rotate by the reaction of a jet of clean oil flowing through the nozzle tube and issuing from the discharge nozzle.

HUGH WILSON FULTON.

EDWARD BRIAN STEAD.

DAVID MORE.

References Gited in the file of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US561050 *Jul 9, 1894May 26, 1896The Keystone Cream Separator Companyhaetmann
US1714658 *Dec 10, 1928May 28, 1929Carter Benjamin CharlesCentrifugal separator
US1882389 *Mar 21, 1930Oct 11, 1932Wesley Macisaac VernonCentrifugal separator
US1882390 *Mar 21, 1930Oct 11, 1932Wesley Macisaac VernonCentrifugal machine
US2321144 *Feb 19, 1940Jun 8, 1943Sharples CorpCentrifugal purification of liquids
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2750107 *Mar 4, 1953Jun 12, 1956Glacier Co LtdCentrifugal oil cleaner, including a cylindrical filter
US2792172 *Feb 23, 1954May 14, 1957Glacier Co LtdCentrifugal filters
US2799448 *Jan 9, 1953Jul 16, 1957Glacier Co LtdCentrifugal oil cleaners
US3343787 *Oct 12, 1965Sep 26, 1967Alfa Laval AbCentrifuge rotor
US3430853 *Oct 7, 1966Mar 4, 1969Kirk Clair FTurbine centrifuge
US3762633 *Apr 6, 1972Oct 2, 1973Tokyo Roki KkRotor for reaction rotary oil filter
US4569424 *Jan 27, 1984Feb 11, 1986Taylor Jr James LBrake shoe construction
US6095964 *Dec 5, 1996Aug 1, 2000The Glacier Metal Company LimitedCentrifugal separator with weight thrust bearing
US6354987 *Apr 16, 1999Mar 12, 2002Filterwerk Mann & Hummel GmbhFree jet centrifuge
US6530872 *Feb 6, 2002Mar 11, 2003Filterwerk Mann & Hummel GmbhFree jet centrifuge rotor
US6579220 *Dec 18, 2000Jun 17, 2003Fleetguard, Inc.Disposable, self-driven centrifuge
US7674376 *May 27, 2005Mar 9, 2010Cummins Filtration Ip Inc.Centrifuge with integral depth filter
US8021290 *Nov 26, 2007Sep 20, 2011Honeywell International Inc.Oil centrifuge for extracting particulates from a fluid using centrifugal force
US8540613 *Sep 11, 2012Sep 24, 2013Mann +Hummel GmbHCentrifugal separator with protected bearing
US20110011795 *Jul 15, 2009Jan 20, 2011Hoff William DFluid pressure driven centrifuge apparatus
USRE39704Dec 5, 1996Jun 26, 2007Filterwerk Mann & Hummel GmbhCentrifugal separator with weight thrust bearing
DE1256159B *Feb 8, 1964Dec 7, 1967Schoenebeck DieselmotorenFliehkraftreiniger fuer Fluessigkeiten, insbesondere fuer Schmieroel von Verbrennungsmotoren
DE20010612U1 *Jun 20, 2000Oct 31, 2001Hengst Walter Gmbh & Co KgFreistrahl-Zentrifuge
Classifications
U.S. Classification494/49, 494/901, 184/6.24, 494/60
International ClassificationB04B5/00
Cooperative ClassificationB04B5/005, Y10S494/901
European ClassificationB04B5/00B