US2612745A - Apparatus for eliminating toxic gases from exhaust fumes - Google Patents

Apparatus for eliminating toxic gases from exhaust fumes Download PDF

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Publication number
US2612745A
US2612745A US793662A US79366247A US2612745A US 2612745 A US2612745 A US 2612745A US 793662 A US793662 A US 793662A US 79366247 A US79366247 A US 79366247A US 2612745 A US2612745 A US 2612745A
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gases
chamber
fumes
housing
exhaust
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US793662A
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Veechio Luigi
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Veechio Luigi
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00Gas separation
    • Y10S55/30Exhaust treatment

Description

| VECCHIO 2,612,745
NG TOXIC GASES FROM EXHAUST FUMES Filed Dec. 24, 1947 Oct. 7, 1952 APPARATUS FOR ELIMINATI Patented Oct. 7, 1952 APPARATUS FOR ELIMINATING TOXIC,
' GASES FROM EXHAUST FUMES Luigi Vecchio, Syracuse, N. Y. Application December 24, 1947, Serial No. 793,662
1 Claim.
1 This invention is an apparatus for eliminating toxic or lethal gases in the exhaust fumes of internal combustion engines, the primary object of which is to provide an improved and simplified apparatus by which the exhaust fumes are primarily relieved of vapor condensate and then purified and relieved of toxic gases before being liberated to the atmosphere.
The apparatus is of simplified construction and is designed in such manner as to be readily applicable to' internal combustion motors for first removing vapor condensate from the fumes, and then actingupon the efiiuent gases in such manner as to rid them of toxic fumes.
A further object of the invention is to pro vide an apparatusof simplified construction for effectively carrying out the removal of water or other liquids from the exhaust gases, and for operating upon the effluent or exhaust gases in such manner as to efiectivelyrid them of objectionable or toxic gases with a minimum waste or deterioration of the absorbing solution employed, as well as with a minimum of back pressure in the exhaust pipe of the engine.
vWith the foregoing objects in view, together with others which will appear as the description proceeds, the invention consists inthe novel construction, combination and arrangement of parts, as well as the successive steps employed, all as will be described more fully hereinafter, illustrated in the drawing, and particularly pointed out in the claim. In the drawing, the figure is a diagram, parts in section, illustrating a preferred form of the apparatus of the present invention.
Referring now to the drawing, the internal combustion engine is represented diagrammatically at H), and the pipe for leading the exhaust gases from the said motor is represented at H. The cooling water inlet for the motor is indicated at [2, while the return conduit for the cooling system is indicated at 13.
In carrying the invention into effect, a condenser I4 is attached to the exhaust pipe I I. This condenser may be of well known construction and may be air or liquid cooled or a combination of both. For the purposes of illustration this condenser is of the liquid cooled type and includes an enlarged airtight casing l5 sealed as indicated to the discharge end of the exhaust pipe I I, and surrounded by a cooling water jacket represented at l6, equipped with cooling fins as shown. It is preferred that the entire casing I! be enclosed by the water jacket in order that cooling fluid from the inlet pipe l2 may enter the 2 water jacket through the conduit I! to entirely enclose the casing l5 and pass from the jacket to the cooling water return pipe I3 through the conduit I8. I
The exhaust condenser chamber has arranged therein in spaced relationship a series of'baflies preferably of reticulate or foraminous construction. These bailles may consist of metallic plates or screens I9 arranged in spaced relationship to one another throughout the length of the-chamber l5 and through which the gases passfrom the exhaust pipe I l to the far end of the chamber.
As these gases usually contain sin-appreciable amount of vapor,.it is desirable that such vapor be removed from the gases, and as the hot gases contact the relatively cold walls of the chamber l5, condensation takes place and the condensate gravitates from the chamber I 5 through the lead 20 to an aspirator of conventional'form; indicated at 2|, and there removed from the system. r
From thedischarge end of the condenser [4 the gases pass through a pipe 22 to thelower end of a closed housing 23. This housing is partly filled as through a capped'inlet port 25' with a suitable absorbing or purifying solution represented at 25, and the discharge end of the pipe 22 is disposed below the liquid level of this solution.
Arranged within the housing 23 and directly above the discharge end of the pipe 22 isa closed chamber A including a plurality of spaced horizontally disposed baffles 26. These baffles are sunbelow the liquid level of the absorbing solution.
The p1ates26 may take the form of foraminous elements or apertured members, through the openings in which the liberated gases escaping from beneath the liquid level of the absorbing solution may pass. As shown in the drawing, each baffle 26 is provided near one end with an opening 24, and the plates are assembled with the openings in alternate relationship so that the up-travelling gases take a tortuous course through the absorbing solution, as indicated by the arrows. During the passage of the fumes through the openings in these plates or screens, the gases are relieved of such of the absorbing solution as they may attempt to carry with them. A similar series of horizontally disposed baflie plates 28 is arranged within a second closed chamber B, which plates are supported by the upright end members 29, while a third closed chamber 0 is similarly equipped with horizontally gases must pass in a downward direction from.
one chamber to the succeeding chambers in travelling through the housing. A cover plate 32 overlies the chambers and it will be noted that the cover plate acts as a drain return plate and is inclined downwardly toward 'the'flrst chamber and is connected to the frontal partition 21 of said first chamber.
,Disposed above the chamber C .is .a passage 33 over which are a'series of 'arcuate .baflies, indicated at 34, 'These baffles extend alternately into the passage above the chamber C as shown, so that the fumes in escaping to the outlet35 must pass in a sinuous or tortuous course, as shown by the arrows, before reaching the said discharge outlet.
The gases entering the chamber are rid of vapor before entering the housing 23, after which the'gases are brought into intimate contact with the solution and the toxic or objectionable fumes are relieved therefrom. As'the gases rise, they take a sinuous or tortuous course through each ofthe -chambers A--B-C before reaching the discharge outlet, and in so doing are alternately relieved of any absorbing liquid which might'be carriedin suspension, and brought into contact 'withthe absorbing solutionso as to further assure the gases of being thoroughly washed or rid of theobjectionable fumes. Such of the travelling fumes as may carry some of the absorbing solution with them are further rid of the solution thus carried by being brought into intimate contact with the baffles 34,'-andthe condensation of the solution thus effected is saved and drains back intothe chamber across the inclined drain return plate or wall 32.
No-mention is .made herein of the specific absorbing'medium relied upon to bring about a thorough washing of the gases to relieve them of the disturbing or objectionable fumes. The chemical constituent of this solution may vary according to the needs or according to the type of fumes to be washed as .well as the nature of the fume to be, dissolved. It is sufilcient for the present disclosure that the solution be a liquid capable of neutralizing carbon monoxide or other toxic or lethal gases which ordinarily emanate from the exhaust pipe of internal combustion engines, wherein such gases are always present where incomplete combustion of hydrocarbon fuel exists.
4 from the exhaust pipe, the water vapor in the gases is condensed and removed from the system. This step is important in that vapor or condensation is prevented from being carried into the absorbing chamber for possible dilution of the absorbing liquid therein. By subsequently treating the gases by the process and with the apparatus described, it is apparent that the fumes emanating from the "discharge pipe 35 will be rendered harmless as well as smoke-free or colorless.
6 By cooling the gases when they first emanate I claim: An apparatus for treating gases from the exhaust of an internal combustion engine comprising: an external housing having a front end wall,
a rear end wall, top, bottom and sides; a series of spaced chambers in the housing, each chamber including a frontal, vertical partition mem- "ber and a plurality of horizontally disposed,
spaced, :apertured members, each of said chambers being spaced from the top and bottom of the housing, the first of said chambers having its fronta1 partition member spaced from the front end wall of the housing; an inlet port in the lower portion of each frontal partition member for admitting gas thereinto; a gas supply conduit communicating with the inlet port in the lower portion of the first of said chambers; a body of liquid within the housing and said chambers; a portin the bottom of each chamber for admitting liquid thereinto from within the housing; a gas discharge port in the top of the housing adjacent the rear end wall; a drain return plate within the upper part of the housing above said chambers, said plate being downwardly inclined toward and connected to the frontal partition of the first of said chambers; and a gas outlet port in said plate in communication with the last said chamber in said series, whereby gas admitted through the supply conduit will pass upwardly through each of said chambers and downwardly between the spaced chambers, and liquid entrained in gas discharged from the last chamber will drain along said return plate to the body of liquid in the housing.
LUIGI VECCHIO.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,032,536 Gerli et a1. July 16, 1912 1,114,876 Goodspeed Oct. 27,1914 1,775,876 Vecchio Sept. 16, 1930 1,891,170 Nose Dec. 13, 1982 2,233,633 Mollenber-g Mar. 4, 1941 FOREIGN PATENTS Number Country Date 228,688 Great Britain Feb. 12, 1925 603,414 Germany Sept. 13, 1934
US793662A 1947-12-24 1947-12-24 Apparatus for eliminating toxic gases from exhaust fumes Expired - Lifetime US2612745A (en)

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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666494A (en) * 1951-08-31 1954-01-19 Sapolin Paints Disposal of fumes by scrubbing and burning
US2686399A (en) * 1952-04-14 1954-08-17 Goodman Mfg Co Exhaust gas conditioner
US2740491A (en) * 1952-05-24 1956-04-03 Vecchio Luigi Fumes-purifying apparatus
US2870862A (en) * 1954-11-10 1959-01-27 Internat Fermont Machinery Co Means for safely exhausting hot gases
US2927422A (en) * 1957-09-23 1960-03-08 Towmotor Corp Spark and flame-proof exhaust outlet
US3032968A (en) * 1960-01-11 1962-05-08 Novak Charles Engine exhaust gas purifier
US3050935A (en) * 1961-01-05 1962-08-28 Socony Mobil Oil Co Inc Apparatus for catalytically treating internal combustion engine exhaust gases
US3103426A (en) * 1963-09-10 Apparatus for condensation and flashback prevention
US3352353A (en) * 1965-09-07 1967-11-14 Joseph L Stevens Automobile accessory apparatus
US3391521A (en) * 1966-04-20 1968-07-09 Eugene B. Pal Apparatus for purifying exhaust gases
US3485015A (en) * 1966-03-28 1969-12-23 Luigi Vecchio Exhaust gas scrubber
US3504481A (en) * 1967-12-11 1970-04-07 Agop G Zakarian Air filtering system
US3678657A (en) * 1970-01-07 1972-07-25 Edith A Hale Fluid pollution eradicator system including an air bubble scrubbing unit
US3766716A (en) * 1971-08-30 1973-10-23 R Ruiz Anti-pollution and hydromogenization
US3831377A (en) * 1972-07-24 1974-08-27 A Morin Method of and apparatus for reducing pollution caused by exhaust gases of an internal combustion engine
US3859788A (en) * 1973-06-11 1975-01-14 Orville D King Combustion gas treatment
US3998613A (en) * 1974-10-29 1976-12-21 Attig Donald B Apparatus for removing sulfur dioxide and particulate matter from flue gases
US4099939A (en) * 1977-07-20 1978-07-11 Mine Safety Appliances Company Spill-proof gas sampler
US4133654A (en) * 1976-01-31 1979-01-09 Becorit (G.B.) Limited Apparatus for treating exhaust gas
US4214880A (en) * 1977-05-03 1980-07-29 Kamphorst Hendrik A Liquid seal system, e.g. for a flare stack
US4282017A (en) * 1979-09-12 1981-08-04 Chen Hsi Chi Automobile dirty smoke eliminator
US4300924A (en) * 1980-03-24 1981-11-17 Paccar Inc. Exhaust gas scrubber for internal combustion engines
US4412509A (en) * 1973-06-11 1983-11-01 Black Robert B Energy conversion system and components thereof
US4470830A (en) * 1983-06-20 1984-09-11 At&T Technologies, Inc. Treating gases with liquids
US4540162A (en) * 1983-02-24 1985-09-10 Armand Gozlan Gas-scrubbing and metal-refining process and system
WO1990002606A1 (en) * 1988-09-13 1990-03-22 Peroxidation Systems, Inc. Oxidation chamber
US5143527A (en) * 1991-04-24 1992-09-01 Tian Song Guo Waste gas-purifying device
EP0570329A1 (en) * 1992-05-15 1993-11-18 Teles de Menezes Junior, Antonio Filter for washing and retention of exhaust gases of motor vehicle
US5678403A (en) * 1994-10-12 1997-10-21 Nippon Soken, Inc. Adsorption apparatus for unburnt hydrocarbons for internal combustion engine
US6019819A (en) * 1998-03-17 2000-02-01 Alpha Engineers, Inc. Apparatus and method for extracting heat from contaminated waste steam
US6183541B1 (en) * 1999-08-26 2001-02-06 Bill E. Compton Baffled horizontal dehydrator
US6200179B1 (en) 1999-11-30 2001-03-13 Eco Sound Inc. Diesel wet exhaust processing system
WO2001040634A1 (en) * 1999-11-30 2001-06-07 Valle Meraza Andres Purifier and method for purifying fluids expelled by liquid-based internal combustion engines
US6613130B2 (en) * 1999-07-09 2003-09-02 G.E.N. Industries Corp Filtering system for removing combustion gases from an airflow
US6827340B2 (en) * 2000-08-14 2004-12-07 Taga Medical Technologies, Inc. CPAP humidifier
US20050284292A1 (en) * 2004-06-24 2005-12-29 Ruan Ying G Exhaust gas cooler and particulate scrubbing system
US7192469B1 (en) * 2004-07-02 2007-03-20 Joann Rumell, legal representative Exhaust treatment device, system and methods for internal combustion engines
EP1837066A3 (en) * 2006-03-22 2009-03-11 Terzo Saviane Device for suppressing fine particles, particularly for a vehicle
US7530552B1 (en) 2006-06-06 2009-05-12 Enviropure Industries, Inc. Exhaust gas treatment device and method
US20110099996A1 (en) * 2009-11-03 2011-05-05 Caterpillar Inc. Exhaust aftertreatment system
CN101624930B (en) * 2008-07-09 2012-06-13 阮英钢 Vehicle tail gas purifying device
US20140182456A1 (en) * 2012-12-27 2014-07-03 Cheng Uei Precision Industry Co., Ltd. Debinder Trap
US20150375165A1 (en) * 2013-09-16 2015-12-31 Savannah River Nuclear Solutions, Llc Mass Transfer Apparatus and Method for Separation of Gases
CN105888778A (en) * 2016-06-22 2016-08-24 北京华奥汽车服务有限公司 Multistage screen type automobile tail gas collecting device
US20170268396A1 (en) * 2014-08-25 2017-09-21 Tianjin Northern Huigu Science and Technology Co., Ltd. Air-purification device using liquid reducing agent, and operation and application method therefor
DE102017100318A1 (en) * 2016-08-10 2018-02-15 Sigfried Arnold emission control system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1032536A (en) * 1911-07-28 1912-07-16 Paul Gerli Apparatus for purifying the exhaust of internal-combustion engines.
US1114876A (en) * 1914-10-27 Milwaukee Locomotive Mfg Company Chemical-tank.
GB228688A (en) * 1924-01-07 1925-02-12 Balfour Bramwell Improvements in the aeration or gasification of water or other liquids
US1775876A (en) * 1925-12-12 1930-09-16 Vecchio Luigi Method of purifying exhaust gases
US1891170A (en) * 1930-06-13 1932-12-13 Nose Toichi Aeroplane
DE603414C (en) * 1931-07-21 1934-09-28 Sigbert Seelig Process for cleaning exhaust gases, in particular from internal combustion engines
US2233633A (en) * 1939-12-29 1941-03-04 Harold J Mollenberg Refrigerating apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1114876A (en) * 1914-10-27 Milwaukee Locomotive Mfg Company Chemical-tank.
US1032536A (en) * 1911-07-28 1912-07-16 Paul Gerli Apparatus for purifying the exhaust of internal-combustion engines.
GB228688A (en) * 1924-01-07 1925-02-12 Balfour Bramwell Improvements in the aeration or gasification of water or other liquids
US1775876A (en) * 1925-12-12 1930-09-16 Vecchio Luigi Method of purifying exhaust gases
US1891170A (en) * 1930-06-13 1932-12-13 Nose Toichi Aeroplane
DE603414C (en) * 1931-07-21 1934-09-28 Sigbert Seelig Process for cleaning exhaust gases, in particular from internal combustion engines
US2233633A (en) * 1939-12-29 1941-03-04 Harold J Mollenberg Refrigerating apparatus

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103426A (en) * 1963-09-10 Apparatus for condensation and flashback prevention
US2666494A (en) * 1951-08-31 1954-01-19 Sapolin Paints Disposal of fumes by scrubbing and burning
US2686399A (en) * 1952-04-14 1954-08-17 Goodman Mfg Co Exhaust gas conditioner
US2740491A (en) * 1952-05-24 1956-04-03 Vecchio Luigi Fumes-purifying apparatus
US2870862A (en) * 1954-11-10 1959-01-27 Internat Fermont Machinery Co Means for safely exhausting hot gases
US2927422A (en) * 1957-09-23 1960-03-08 Towmotor Corp Spark and flame-proof exhaust outlet
US3032968A (en) * 1960-01-11 1962-05-08 Novak Charles Engine exhaust gas purifier
US3050935A (en) * 1961-01-05 1962-08-28 Socony Mobil Oil Co Inc Apparatus for catalytically treating internal combustion engine exhaust gases
US3352353A (en) * 1965-09-07 1967-11-14 Joseph L Stevens Automobile accessory apparatus
US3485015A (en) * 1966-03-28 1969-12-23 Luigi Vecchio Exhaust gas scrubber
US3391521A (en) * 1966-04-20 1968-07-09 Eugene B. Pal Apparatus for purifying exhaust gases
US3504481A (en) * 1967-12-11 1970-04-07 Agop G Zakarian Air filtering system
US3678657A (en) * 1970-01-07 1972-07-25 Edith A Hale Fluid pollution eradicator system including an air bubble scrubbing unit
US3766716A (en) * 1971-08-30 1973-10-23 R Ruiz Anti-pollution and hydromogenization
US3831377A (en) * 1972-07-24 1974-08-27 A Morin Method of and apparatus for reducing pollution caused by exhaust gases of an internal combustion engine
US3859788A (en) * 1973-06-11 1975-01-14 Orville D King Combustion gas treatment
US4412509A (en) * 1973-06-11 1983-11-01 Black Robert B Energy conversion system and components thereof
US3998613A (en) * 1974-10-29 1976-12-21 Attig Donald B Apparatus for removing sulfur dioxide and particulate matter from flue gases
US4133654A (en) * 1976-01-31 1979-01-09 Becorit (G.B.) Limited Apparatus for treating exhaust gas
US4214880A (en) * 1977-05-03 1980-07-29 Kamphorst Hendrik A Liquid seal system, e.g. for a flare stack
US4099939A (en) * 1977-07-20 1978-07-11 Mine Safety Appliances Company Spill-proof gas sampler
US4282017A (en) * 1979-09-12 1981-08-04 Chen Hsi Chi Automobile dirty smoke eliminator
US4300924A (en) * 1980-03-24 1981-11-17 Paccar Inc. Exhaust gas scrubber for internal combustion engines
US4540162A (en) * 1983-02-24 1985-09-10 Armand Gozlan Gas-scrubbing and metal-refining process and system
US4470830A (en) * 1983-06-20 1984-09-11 At&T Technologies, Inc. Treating gases with liquids
WO1990002606A1 (en) * 1988-09-13 1990-03-22 Peroxidation Systems, Inc. Oxidation chamber
US5143527A (en) * 1991-04-24 1992-09-01 Tian Song Guo Waste gas-purifying device
EP0570329A1 (en) * 1992-05-15 1993-11-18 Teles de Menezes Junior, Antonio Filter for washing and retention of exhaust gases of motor vehicle
US5364424A (en) * 1992-05-15 1994-11-15 Teles De Menezes Junior Antoni Filter for washing and retention of exhaust gases in motorized vehicles
US5678403A (en) * 1994-10-12 1997-10-21 Nippon Soken, Inc. Adsorption apparatus for unburnt hydrocarbons for internal combustion engine
US6019819A (en) * 1998-03-17 2000-02-01 Alpha Engineers, Inc. Apparatus and method for extracting heat from contaminated waste steam
US6613130B2 (en) * 1999-07-09 2003-09-02 G.E.N. Industries Corp Filtering system for removing combustion gases from an airflow
US6183541B1 (en) * 1999-08-26 2001-02-06 Bill E. Compton Baffled horizontal dehydrator
US6200179B1 (en) 1999-11-30 2001-03-13 Eco Sound Inc. Diesel wet exhaust processing system
WO2001040634A1 (en) * 1999-11-30 2001-06-07 Valle Meraza Andres Purifier and method for purifying fluids expelled by liquid-based internal combustion engines
US6827340B2 (en) * 2000-08-14 2004-12-07 Taga Medical Technologies, Inc. CPAP humidifier
US20050284292A1 (en) * 2004-06-24 2005-12-29 Ruan Ying G Exhaust gas cooler and particulate scrubbing system
US7163571B2 (en) * 2004-06-24 2007-01-16 Ying Gang Ruan Exhaust gas cooler and particulate scrubbing system
US20070245722A1 (en) * 2004-06-24 2007-10-25 Ruan Ying G Exhaust gas cooler and particulate scrubbing system
US7621991B2 (en) 2004-06-24 2009-11-24 Ying Gang Ruan Exhaust gas cooler and particulate scrubbing system
US7192469B1 (en) * 2004-07-02 2007-03-20 Joann Rumell, legal representative Exhaust treatment device, system and methods for internal combustion engines
EP1837066A3 (en) * 2006-03-22 2009-03-11 Terzo Saviane Device for suppressing fine particles, particularly for a vehicle
US7530552B1 (en) 2006-06-06 2009-05-12 Enviropure Industries, Inc. Exhaust gas treatment device and method
CN101624930B (en) * 2008-07-09 2012-06-13 阮英钢 Vehicle tail gas purifying device
US20110099996A1 (en) * 2009-11-03 2011-05-05 Caterpillar Inc. Exhaust aftertreatment system
US8250857B2 (en) 2009-11-03 2012-08-28 Caterpillar Inc. Exhaust aftertreatment system
US20140182456A1 (en) * 2012-12-27 2014-07-03 Cheng Uei Precision Industry Co., Ltd. Debinder Trap
US20150375165A1 (en) * 2013-09-16 2015-12-31 Savannah River Nuclear Solutions, Llc Mass Transfer Apparatus and Method for Separation of Gases
US9868084B2 (en) * 2013-09-16 2018-01-16 Savannah River Nuclear Solutions, Llc Mass transfer apparatus and method for separation of gases
US20170268396A1 (en) * 2014-08-25 2017-09-21 Tianjin Northern Huigu Science and Technology Co., Ltd. Air-purification device using liquid reducing agent, and operation and application method therefor
CN105888778A (en) * 2016-06-22 2016-08-24 北京华奥汽车服务有限公司 Multistage screen type automobile tail gas collecting device
CN105888778B (en) * 2016-06-22 2017-08-25 北京华奥汽车服务股份有限公司 A kind of multilevel screen type tail gas collector for automobile
DE102017100318A1 (en) * 2016-08-10 2018-02-15 Sigfried Arnold emission control system

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