US4581142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocyclone
Assignee: Titech Jon H Andresen
•
Filing: 1984-01-11
•
Granted: 1986-04-08
•
Expires: 2004-01-11
Abstract
Abstract A cyclone separator or hydrocyclone with good separation efficiency and large capacity comprises a substantially cylindrical or slightly conical hollow body (1), the lower part of which terminates in an outlet opening (6) for liquid enriched with respect to solid particles, and in which the outlet (7) for purified liquid is defined between a centrally arranged body (11) and a guiding tube (2), and in which the liquid to be purified is introduced via a particularly designed nozzle (13).
Inventors
- 👤 Tron-Halvard Fladby
- 👤 Leif N. Hovind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:57
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/12; B04C5/02; B04C5/04; B04C5/08; B04C5/107; B04C5/13
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
234 words
Cyclone separator or hydrocyclone for separation of solid particles from a liquid comprising a substantially cylindrical hollow body having a lower portion which is conically tapered and terminates in an opening for discharge of liquid enriched with respect to solid particles, the upper end of said hollow body being provided with at least one inlet opening having a bore and an annular outlet for purified liquid, said inlet opening being provided with a short nozzle having a bore (A), the diameter of the bore of said inlet opening in front of said nozzle being larger or equal to twice the diameter of the bore (a) of said nozzle, the diameter (B) of the bore of said inlet opening behind said nozzle being at least 1.3 times the diameter of the bore (A) of said nozzle, the length (D) of said nozzle not exceeding the diameter (A) thereof and the length of curvature (E) of said nozzle being less than 1.5 times and larger than 0.75 times the diameter (A) of said nozzle, and said annular outlet being defined between a centrally disposed body and an annular guiding tube located in the upper end of said hollow body, said annular guiding tube having an external diameter (D 2 ) in the range of 0.72 (D 3 ) and 0.83 (D 3 ) in respect to the inner diameter (D 3 ) of said cyclone separator.
Claim 2
Dependent Claim
234 words
Cyclone separator or hydrocyclone for separation of solid particles from a liquid comprising a substantially cylindrical hollow body having a lower portion which is conically tapered and terminates in an opening for discharge of liquid enriched with respect to solid particles, the upper end of said hollow body being provided with at least one inlet opening having a bore and an annular outlet for purified liquid, said inlet opening being provided with a short nozzle having a bore (A), the diameter of the bore of said inlet opening in front of said nozzle being larger or equal to twice the diameter of the bore (a) of said nozzle, the diameter (B) of the bore of said inlet opening behind said nozzle being at least 1.3 times the diameter of the bore (A) of said nozzle, the length (D) of said nozzle not exceeding the diameter (A) thereof and the length of curvature (E) of said nozzle being less than 1.5 times and larger than 0.75 times the diameter (A) of said nozzle, and said annular outlet being defined between a centrally disposed body and an annular guiding tube located in the upper end of said hollow body, said annular guiding tube having an external diameter (D 2 ) in the range of 0.72 (D 3 ) and 0.83 (D 3 ) in respect to the inner diameter (D 3 ) of said cyclone separator.
Claim 3
Dependent Claim
17 words
A cyclone separator or hydrocyclone according to claim 1 wherein the cylindrical hollow body is slightly conical.
Claim 4
Dependent Claim
22 words
A cyclone separator or hydrocyclone according to claim 2 wherein the lower part of the cylindrical hollow body is internally conically tapered.
Claim 5
Dependent Claim
22 words
A cyclone separator or hydrocyclone according to claim 1 wherein the lower part of the cylindrical hollow body is internally conically tapered.
Claim 6
Dependent Claim
52 words
A cyclone separator or hydrocyclone according to claim 1 wherein the centrally disposed body has the form of a paraboloid having a diameter (D 1 ) in the range of 0.4 (D 3 ) and 0.6 (D 3 ) in respect to the inner diameter (D 3 ) of said cyclone separator.
Claim 7
Dependent Claim
33 words
A cyclone separator or hydrocyclone according to claim 1 wherein the centrally disposed body has a focal distance which is greater than 0.06 (D 1 ) and less than 0.1 (D 1 ).
Claim 8
Dependent Claim
37 words
A cyclone separator or hydrocyclone according to claim 1 wherein the annular guiding tube is conically shaped, having a conicity in a range of 4° to 10°, and has a larger diameter inside the cylindrical hollow body.
Claim 9
Dependent Claim
35 words
A cyclone separator or hydrocyclone according to claim 1 wherein the annular guiding tube is provided with a lower sharp angular edge in which the angle α is in a range of 25° and 35°.
Claim 10
Dependent Claim
30 words
A cyclone separator hydrocyclone according to claim 1 wherein the angular guiding tube has a wall thickness in a range of 0.02 (D 3 ) and 0.04 (D 3 ).
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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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |