Cyclone

Details Cyclone Cyclone

2008-03-18

2011-10-11

Greene, Jason M (Department: 1776)

Gas separation

Deflector

Fixed gas whirler or rotator means

C055S447000, C055S385400, C055S385600, C055S428000, C055S434100, C055S434200, C055S434400, C055S435000, C095S269000, C095S271000

Reexamination Certificate

active

08034143

ABSTRACT:
A cyclone includes a cylindrical housing and has an inner diameter D. An inlet is near a first end of the housing. A deflection member can be positioned within the first end or the second end of the housing, depending on whether the cyclone is uniflow or reverse flow. An outlet tube is positioned within and extends from a second end or the first end of the housing (depending on whether uniflow or reverse flow). A bunker is formed between the outlet tube and an inner wall of the housing in a uniflow design and between the deflection member and the housing in a reverse flow design, and collects particles separated from an inlet gas stream. A gap between the deflection member and the outlet tube has a length in the range of approximately 0.4*D to 0.8*D. The length of the bunker is approximately greater than or equal to 1.5*D.

REFERENCES:
patent: 2087789 (1937-07-01), Allardice
patent: 2165946 (1939-07-01), Smith
patent: 3448563 (1969-06-01), Sobeck
patent: 3520114 (1970-07-01), Pall et al.
patent: 3590560 (1971-07-01), Pall et al.
patent: 3611679 (1971-10-01), Pall
patent: 4008059 (1977-02-01), Monson et al.
patent: 4028076 (1977-06-01), Fields
patent: 4578199 (1986-03-01), Peel et al.
patent: 4714541 (1987-12-01), Buyan et al.
patent: 4853010 (1989-08-01), Spence et al.
patent: 4969934 (1990-11-01), Kusik et al.
patent: 4971603 (1990-11-01), Prinsloo et al.
patent: 4985058 (1991-01-01), Prinsloo et al.
patent: 5496394 (1996-03-01), Nied
patent: 5681450 (1997-10-01), Chitnis et al.
patent: 6468426 (2002-10-01), Klass
patent: 6576029 (2003-06-01), West
patent: 6669845 (2003-12-01), Klass
patent: 6673133 (2004-01-01), Sechrist et al.
patent: 6686752 (2004-02-01), Heumann et al.
patent: 6797026 (2004-09-01), Sechrist et al.
patent: 6837912 (2005-01-01), Heumann
patent: 6863703 (2005-03-01), Maryamchik et al.
patent: 7070637 (2006-07-01), Zhang
patent: 7162770 (2007-01-01), Davidshofer
patent: 7182803 (2007-02-01), Stewart et al.
patent: 7282074 (2007-10-01), Witter
patent: 7288202 (2007-10-01), Maier
patent: 7357824 (2008-04-01), Hakola
patent: 7591866 (2009-09-01), Bose
patent: 7662202 (2010-02-01), Oh et al.
patent: 2001/0054213 (2001-12-01), Oh et al.
patent: 2003/0200736 (2003-10-01), Ni
patent: 2005/0126394 (2005-06-01), Reiling
patent: 2005/0172815 (2005-08-01), Betting et al.
patent: 2006/0096933 (2006-05-01), Maier
patent: 2007/0012002 (2007-01-01), Oh et al.
patent: 1 327 947 (1994-03-01), None
patent: 1 327 949 (1994-03-01), None
patent: 2 345 770 (2000-04-01), None
“Cyclones,”Adapted from Air Pollution Control, by C.D. Cooper & F.C. Alley, 1986, 9 pages.
Winkler, Jill, et al., “Cyclone Separators,” [online], [retrieved on Jan. 26, 2007]. Retrieved from the Internet: www.wsu.edu:8080/˜gmhyde/433—web—pages/cyclones/CycloneRptTeam4.html, 6 pages.
Tan, Z. C., et al., “Decay of Rotational Airflow with Flow Conditioner in Larger Diameter Ducts for Dust Concentration Measurement using Isokinetic Sampling.” Agricultural Engineering International: the CIGR Journal of Scientific Research and Development. Manuscript BC 03 007. vol. V. Dec. 2003. 18 pages.
“Air Pollution Control Technology Fact Sheet,” United States Environmental Protection Agency, EPA-CICA Fact Sheet: Cyclones [online]. Retrieved from the Internet: http://epa.gov/ttn/catc/dir1/fcyclon.pdf. 5 pages.
“Air Pollution Technology Fact Sheet,” EPA Center on Air Pollution, EPA-CICA Fact Sheet: Cyclones [online]. Retrieved from the Internet: http://www.p2pays.org/ref/10/09866.pdf. 5 pages.
“Use of cyclones for removing dust from gas streams,” EPA Guidelines, EPA 602/05, Issued Dec. 2005, Government of South Australia. [Online] Retrieved from the internet: http://www.epa.sa.gov.au/pdfs/guide—cyclones.pdf. 5 pages.
“About Industrial Dust Collectors, Baghouses, Baghouse Services, and Dust Collecting Systems.” Industrial Quick Search, IQS Directory, Dust Collectors [online]. [Retrieved on Jan. 26, 2007.] Retrieved from the Internet: http://www.iqsdirectory.com/dust-collector/. 6 pages.
Jain, A, et al., “Studies on Gas-Solid Heat Transfer in Cyclone Heat Exchanger,” (Abstract), Journal of Heat Transfer, vol. 128, Issue 8, Aug. 2006, 1 page.
Tan, Zhongchao, “Mechanisms of Particle Separation in an Aerodynamic Air Cleaner,” [online]. [Retrieved on Jan. 31, 2007.] Word document available from Internet: www.asabe.org/awards/competitions/2004—Graduate—Winners/Z—Tan—Mechanisms.doc. 10 pages.
Chmielniak, Tomasz, et al., “Method of calculation of new cyclone-type separator with swirling baffle and bottom take off of clean gas—part II: experimental verification,” Chemical Engineering and Processing 40 (2001) 245-254, 13 pages.
Zhang, Y., et al., “Particle Separation Efficiency of a Uniflow Deduster with Different Types of Dusts,” retrieved from the Internet at http://age-web.age.uiuc.edu/bee/RESEARCH/Deduster/dedpaper2.html & http://age-web.age.uiuc.edu/bee/publication/publication.htm, 1999, 14 pages.
“Particulate Controls Technologies,” Institute of Clean Air Companies [online]. [Retrieved on Jan. 26, 2007.] Retrieved from the Internet: http://www.icac.com/i4a/pages/index.cfm?pageid=3398. 5 pages.
“Exposure to Fine Air Pollution Linked With Risk of Respiratory and Cardiovascular Diseases,” Science Daily, Mar. 8, 2008 [online]. Retrieved from the Internet: http://www.sciencedaily.com/releases/2006/03/060308084559.htm. 4 pages.
Tan, Zhongchao, “An analytical model for the fractional efficiency of a uniflow cyclone with a tangential inlet,” Powder Technology, vol. 183, Issue 2, pp. 147-151, available online Jun. 29, 2007, 5 pages.
Tan, Z. et al., “Comparison of Two Models for Particle Separation in a Vane-Induced Uniflow Cyclone,” ASHRAE, Technical and Symposium Papers presented at the 2005 winter meeting in Orlando, Florida of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2005, 8 pages.
Zhang, Y., “Analysis and Validation of Particle Separation Efficiency in a Centrifugal Field under Laminar and Perfect Mixing Conditions,” ASHRAE Transactions, vol. 109, issue 2, pp. 815-821, 2003, 7 pages.

Affiliated with

Also associated with

Rating

Cyclone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cyclone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cyclone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4301150