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US6019717A Expired / Lapsed US ⏱️ 0.0 years remaining

Nozzle inlet enhancement for a high speed turbine-driven centrifuge

Assignee: Atmus Filtration Inc
•
Filing: 1998-12-11
•
Granted: 2000-02-01
•
Expires: 2018-12-11
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Abstract

Abstract A cone-stack centrifuge for separating particulate matter out of a circulating liquid includes a cone-stack assembly which is configured with a hollow rotor hub and is constructed to rotate about an axis. The cone-stack assembly is mounted onto a shaft centertube which is attached to a hollow base hub of a base assembly. The base assembly further includes a liquid inlet, a first passageway, and a second passageway which is connected to the first passageway. The liquid inlet is connected to the hollow base hub by the first passageway. A bearing arrangement is positioned between the rotor hub and the shaft centertube for rotary motion of the cone-stack assembly. An impulse-turbine wheel is attached to the rotor hub and a flow jet nozzle is positioned so as to be directed at the turbine wheel. The flow jet nozzle is coupled to the second passageway for directing a flow jet of liquid at the turbine wheel in order to impart rotary motion to the cone-stack assembly. The liquid for the flow jet nozzle enters the cone-stack centrifuge by way of the liquid inlet. The same liquid inlet also provides the liquid which is circulated through the cone-stack assembly. A honeycomb-like insert is assembled into the flow jet nozzle in order to reduce inlet turbulence and improve the turbine efficiency.

Inventors

  • 👤 Peter K. Herman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 19:55
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/06; B04B1/00; B04B1/04; B04B1/08; B04B5/00; B04B5/005; F; F01; F01M; F01M1/00; F01M1/10; F01M2001/1028; F01M2001/1035; F01M13/00; F01M13/04; F01M2013/0422

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 182 words
A cone-stack centrifuge for separating particulate matter out of a circulating fluid, said centrifuge comprising: a rotor including a cone stack and a hollow rotor hub constructed and arranged to rotate about an axis; a base assembly defining a fluid inlet, a first passageway, a second passageway connected to said first passageway and a hollow base hub, said fluid inlet being connected to said hollow base hub by said first passageway; a shaft centertube attached to said base hub and extending through said rotor hub, said shaft centertube having a passageway therein for delivering said fluid from said first passageway to said cone stack; a bearing positioned between said rotor hub and said shaft centertube for rotary motion of said rotor about said shaft centertube; an impulse turbine attached to said rotor; a flow jet nozzle flow coupled to said second passageway and being constructed and arranged for directing a flow jet of said fluid at said impulse turbine which in turn imparts rotary motion to said rotor; and a flow-directing insert assembled into said flow jet nozzle for reducing inlet turbulence.
Claim 2
Dependent Claim 182 words
A cone-stack centrifuge for separating particulate matter out of a circulating fluid, said centrifuge comprising: a rotor including a cone stack and a hollow rotor hub constructed and arranged to rotate about an axis; a base assembly defining a fluid inlet, a first passageway, a second passageway connected to said first passageway and a hollow base hub, said fluid inlet being connected to said hollow base hub by said first passageway; a shaft centertube attached to said base hub and extending through said rotor hub, said shaft centertube having a passageway therein for delivering said fluid from said first passageway to said cone stack; a bearing positioned between said rotor hub and said shaft centertube for rotary motion of said rotor about said shaft centertube; an impulse turbine attached to said rotor; a flow jet nozzle flow coupled to said second passageway and being constructed and arranged for directing a flow jet of said fluid at said impulse turbine which in turn imparts rotary motion to said rotor; and a flow-directing insert assembled into said flow jet nozzle for reducing inlet turbulence.
Claim 3
Dependent Claim 38 words
The cone-stack centrifuge of claim 1 wherein said impulse turbine includes a plurality of individual turbine buckets, each with a half-bucket design, which are constructed and arranged to be acted upon by said flow jet of said fluid.
Claim 4
Dependent Claim 17 words
The cone-stack centrifuge of claim 2 wherein said flow-directing insert defines a plurality of spaced-apart flow apertures.
Claim 5
Dependent Claim 38 words
The cone-stack centrifuge of claim 1 wherein said impulse turbine includes a plurality of individual turbine buckets, each with a split-bucket design, which are constructed and arranged to be acted upon by said flow jet of said fluid.
Claim 6
Dependent Claim 17 words
The cone-stack centrifuge of claim 4 wherein said flow-directing insert defines a plurality of spaced-apart flow apertures.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-01-31 2003-08-02 2004-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-01-31 2007-08-02 2008-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-01-31 2011-08-02 2012-02-01 $7700.00 Window Closed / Lapsed

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