US3695509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator for separating emulsions
Assignee: TERMOMECCANICA ITALIANA SpA
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Filing: 1970-07-23
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Granted: 1972-10-03
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Expires: 1990-07-23
Abstract
Abstract A centrifugal separator for emulsions comprises a rotating drum with an admission chamber at one end thereof, connected to atmosphere via an axial supply inlet, and a multitude of separating tubes arranged around an axial hub to extend longitudinally from the common admission chamber to a common outlet chamber at the other end of the drum. One or more outlets connected to atmosphere are arranged to discharge the lighter constituent of the emulsion from the discharge chamber at a radial distance lying between the radius of the supply inlet and that of the hub. An outlet duct connected to atmosphere extends from the periphery of the outlet chamber towards the drum axis so as to discharge the heavier constituent at a radial distance slightly greater than that of the discharge outlet for the lighter constituent of the emulsion. Liquid movement through the separator is provided through centrifugal force only. Emulsion supplied to the admission chamber is driven radially outward and forms therein a coaxial liquid level at atmospheric pressure. The lighter constituent forms in the outlet chamber a coaxial overflow level at atmospheric pressure at the discharge outlet. The heavier constituent forms a further coaxial overflow level at atmosphere pressure, at the discharge end of the outlet duct.
Inventors
- 👤 Alain Ferdinand Javet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:44
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/02; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; B04B1/00; B04B5/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
276 words
A centrifugal separator for dividing an emulsion into a light and a heavy fraction, comprising: a drum rotatable about a central axis, said drum having a cylindrical casing with a pair of end walls and a closed hub within said casing axially spaced from said end walls, one of said end walls forming a first header defining an entrance manifold with said hub, the other of said end walls forming a second header defining an exit manifold with said hub, said first header being provided with a central opening of a radius smaller than the hub radius connecting said entrance manifold with the atmosphere; a multiplicity of axially extending conduits clustered about said hub, said conduits forming passages between said manifolds of a diameter substantially smaller than their distances from said axis; feed means for introducing an emulsion into said entrance manifold, said feed means passing with clearance through said opening; baffle means in said exit manifold dividing same into an annular duct for the heavy fraction and an outlet chamber for the light fraction, said duct being open toward said passages near the periphery of said casing and extending inwardly along said second header in spaced relationship therewith; first collector means communicating with said duct for extracting said heavy fraction therefrom while venting said duct to the atmosphere; and second collector means communicating with said outlet chamber for extracting said light fraction therefrom while venting said chamber to the atmosphere, both said first and second collector means communicating with said exit manifold at locations spaced from said axis by distances larger than the radius of said opening but smaller than the radius of said hub.
Claim 2
Dependent Claim
276 words
A centrifugal separator for dividing an emulsion into a light and a heavy fraction, comprising: a drum rotatable about a central axis, said drum having a cylindrical casing with a pair of end walls and a closed hub within said casing axially spaced from said end walls, one of said end walls forming a first header defining an entrance manifold with said hub, the other of said end walls forming a second header defining an exit manifold with said hub, said first header being provided with a central opening of a radius smaller than the hub radius connecting said entrance manifold with the atmosphere; a multiplicity of axially extending conduits clustered about said hub, said conduits forming passages between said manifolds of a diameter substantially smaller than their distances from said axis; feed means for introducing an emulsion into said entrance manifold, said feed means passing with clearance through said opening; baffle means in said exit manifold dividing same into an annular duct for the heavy fraction and an outlet chamber for the light fraction, said duct being open toward said passages near the periphery of said casing and extending inwardly along said second header in spaced relationship therewith; first collector means communicating with said duct for extracting said heavy fraction therefrom while venting said duct to the atmosphere; and second collector means communicating with said outlet chamber for extracting said light fraction therefrom while venting said chamber to the atmosphere, both said first and second collector means communicating with said exit manifold at locations spaced from said axis by distances larger than the radius of said opening but smaller than the radius of said hub.
Claim 3
Dependent Claim
33 words
A separator as defined in claim 1 wherein said second header and said baffle means are generally frustoconical, said chamber converging radially outwardly in a zone containing the outlet ends of said passages.
Claim 4
Dependent Claim
29 words
A separator as defined in claim 2 wherein said first header is generally frustoconical, said entrance manifold converging radially outwardly in a zone containing a pair of coaxial channels.
Claim 5
Dependent Claim
20 words
A separator as defined in claim 1 wherein said first and second collector means comprise a pair of coaxial channels.
Claim 6
Dependent Claim
26 words
A system as defined in claim 4 wherein said first and second collector means further comprises two sets of tubes opening with clearance into said channels.
Claim 7
Dependent Claim
23 words
A system as defined in claim 5 wherein said tubes are generally L-shaped and provided with substantially radial legs received within said channels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |