US4235845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-air pollution system for exhaust gas
Assignee: Individual
•
Filing: 1979-01-02
•
Granted: 1980-11-25
•
Expires: 1999-01-02
Abstract
Abstract The invention provides a pair of exhaust gas separation stages comprised in a gas separating vortex tube having an exhaust gas operated turbine impeller or rotor with stator wheels. The system combination also includes a mixing chamber for heavier and lighter combustible gas components subsequent to separation, wherein such components are directed to the top surface of a water charge in the mixing chamber, and further includes a chemical separation chamber downstream of the mixing chamber containing specified chemicals wherein the mixing chamber removes substantial parts of formaldehyde and nitrous oxides while the chemical chamber removes acetaldehyde and higher aldehyde components. Finally, the gas mixture from the chemical separation chamber passes through a water scrubber to remove traces of chemicals which may be used, to keep traces of chemicals in the chemical chamber from reaching the engine.
Inventors
- 👤 Ranendra K. Bose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/009; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; F01N3/00; F01N3/02; F01N3/021; F01N3/037; F01N3/04; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2882; F02; F02M; F02M26/00; F02M26/13; F02M26/35; F01N2290/00; F01N2290/02; F01N2290/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S60/00; Y10S60/902
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
144 words
In an anti-air pollution system for exhaust gas of the kind having a turbine impeller and a gas separation vortex tube for a first stage separation between combustible heavier and combustible lighter components of pollutant gases and a second gas separation stage for separating the non-combustible lighter constituent of the heavier combustible component gases for ultimate exhaust; wherein the lighter component moves in direction out of said vortex tube opposite to the direction of entry; and said system having means providing mixing of the lighter combustible component with the heavier combustible remaining component; the improvement which comprises: a stator wheel disposed downstream of the impeller for effecting downstream gas rotation in the vortex tube of said components in the same direction of rotation as said impeller whereby in said first separation stage lighter gases have reduced resistance to flow outwardly of said vortex tube.
Claim 2
Dependent Claim
144 words
In an anti-air pollution system for exhaust gas of the kind having a turbine impeller and a gas separation vortex tube for a first stage separation between combustible heavier and combustible lighter components of pollutant gases and a second gas separation stage for separating the non-combustible lighter constituent of the heavier combustible component gases for ultimate exhaust; wherein the lighter component moves in direction out of said vortex tube opposite to the direction of entry; and said system having means providing mixing of the lighter combustible component with the heavier combustible remaining component; the improvement which comprises: a stator wheel disposed downstream of the impeller for effecting downstream gas rotation in the vortex tube of said components in the same direction of rotation as said impeller whereby in said first separation stage lighter gases have reduced resistance to flow outwardly of said vortex tube.
Claim 3
Dependent Claim
73 words
In a system as set forth in claim 1, including the further improvement of a mixing chamber and means for conducting lighter and heavier combustible components thereto; said mixing chamber being adapted to hold a charge of liquid absorbent to absorb formaldehyde and nitrous oxide, said conducting means being disposed to conduct gas components to the surface of said liquid charge; including means to effect egress from said mixing chamber of mixed gases.
Claim 4
Dependent Claim
62 words
In a system as set forth in claim 2, including the improvement of a chemical separation chamber downstream of said mixing chamber and containing a solution of sodium hydroxide and potassium dichromate for oxidizing higher aldehydes by exposure of the gaseous mixture from said mixing chamber to said solution; including means of egress of said gaseous mixture from said chemical separating chamber.
Claim 5
Dependent Claim
56 words
In a system as set forth in claim 2, including the improvement of a chemical separation chamber downstream of said mixing chamber and containing a solution for removing higher aldehydes by exposure of the gaseous mixture from said mixing chamber to said solution; including means of egress of said gaseous mixture from said chemical separating chamber.
Claim 6
Dependent Claim
45 words
In a system as set forth in claim 4, including the further improvement comprising a scrubbing chamber downstream of said chemical separating chamber, wherein traces of chemicals entrained with gaseous mixture are removed; including means for egress of said gaseous mixture from said scrubbing chamber.
Claim 7
Dependent Claim
46 words
In a system as set forth in claim 5, including in said system an air filter container and air filter therein and connection means from said scrubbing chamber to said air filter container located to conduct gaseous mixture thereto within the confines of said filter therein.
Claim 8
Dependent Claim
21 words
In a system as set forth in claim 1, including the improvement comprising a stator wheel disposed upstream of said impeller.
Claim 9
Dependent Claim
73 words
In a system as set forth in claim 7, including the further improvement of a mixing chamber and means for conducting lighter and heavier combustible components thereto; said mixing chamber being adapted to hold a charge of liquid absorbent to absorb formaldehyde and nitrous oxide, said conducting means being disposed to conduct gas components to the surface of said liquid charge; including means to effect egress from said mixing chamber of mixed gases.
Claim 10
Dependent Claim
56 words
In a system as set forth in claim 8, including the improvement of a chemical separation chamber downstream of said mixing chamber and containing a solution for removing higher aldehydes by exposure of the gaseous mixture from said mixing chamber to said solution; including means of egress of said gaseous mixture from said chemical separating chamber.
Claim 11
Dependent Claim
45 words
In a system as set forth in claim 9, including the further improvement comprising a scrubbing chamber downstream of said chemical separating chamber, wherein traces of chemicals entrained with gaseous mixture are removed; including means for egress of said gaseous mixture from said scrubbing chamber.
Claim 12
Dependent Claim
46 words
In a system as set forth in claim 10, including in said system an air filter container and air filter therein and connection means from said scrubbing chamber to said air filter container located to conduct gaseous mixture thereto within the confines of said filter therein.
Claim 13
Dependent Claim
62 words
In a system as set forth in claim 7, including the improvement of a chemical separation chamber downstream of said mixing means and containing a solution of sodium hydroxide and potassium dichromate for oxidizing higher aldehydes by exposure of the gaseous mixture from said mixing means to said solution; including means of egress of said gaseous mixture from said chemical separating chamber.
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) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |