US20110120105A1 - Engine waste gas treatment method and apparatus - Google Patents
Engine waste gas treatment method and apparatus Download PDFInfo
- Publication number
- US20110120105A1 US20110120105A1 US12/625,541 US62554109A US2011120105A1 US 20110120105 A1 US20110120105 A1 US 20110120105A1 US 62554109 A US62554109 A US 62554109A US 2011120105 A1 US2011120105 A1 US 2011120105A1
- Authority
- US
- United States
- Prior art keywords
- waste gas
- motor vehicle
- exhaust pipe
- ozone
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/38—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to car engine waste gas treatment technology and more particularly, to an engine waste gas treatment method and apparatus that effectively decompose volatile organic compounds discharged from a car engine, reducing air pollution.
- a car engine either gasoline engine or diesel engine, discharges a big amount of waste gas to pollute the atmosphere during operation.
- Exhaust gases in the atmosphere cause a greenhouse effect, i.e., the rise in temperature that the Earth experiences.
- a strong greenhouse effect in the atmosphere makes the Earth warmer than usual. An extra warming of the Earth may cause problems for humans, plants, and animals. Since the late 20 th century, the strong greenhouse effect in the atmosphere has aroused great concern among people around use. More particularly, the automotive industry has been continuously proposing new measures to reduce the exhaust amount of waste gas.
- One of the best way to reduce the exhaust amount of waste gas from the diesel engine of a diesel vehicle is to install an exhaust gas purifier in the exhaust pipe of the diesel vehicle.
- a diesel vehicle uses compression ignition to burn fuel oil or substitute fuel, performing the diesel cycle to convert chemical energy into thermal energy and power output.
- pollutants including PM (particulate matter), smoke, NO x (mono-nitrogen oxides), CO (carbon monoxide), SO x (sodium oxides), CO 2 (carbon dioxide), NC (hydrocarbon) and other waste matters are produced and discharged out of the exhaust pipe into the atmosphere, causing damage to the ozone layer, occurrence of acidic rain and rise in greenhouse effect.
- PM particulate matter
- NO x mono-nitrogen oxides
- CO carbon monoxide
- SO x sodium oxides
- CO 2 carbon dioxide
- NC hydrocarbon
- other waste matters are produced and discharged out of the exhaust pipe into the atmosphere, causing damage to the ozone layer, occurrence of acidic rain and rise in greenhouse effect.
- PM (particulate matter) in exhausted waste gas contain polycyclic aromatic hydrocarbons or metal oxides
- breathing in such exhausted waste gas may cause lung, bronchi or breathing passage diseases.
- the ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface.
- Ozone is mainly located in the lower portion of the stratosphere from approximately 10 km to 50 km above Earth, though the thickness varies seasonally and geogaphically. Further, ozone is present in low concentrations (0.01 ⁇ 0.04 ppm) throughout the Earth's atmosphere to prevent abnormal growth of bacteria.
- CFC chlorofluorocarbon
- the Earth's surface temperature has raised 2° C. when compared to the record 50 years ago. In consequence, the average environmental magnetic field has dropped from the early 0.5 Gauss to the present 0.45 Gauss.
- electronic direct ignition system may be used with a nested ceramic filter element to filtrate carbon dioxide, hydrocarbon, mono-nitrogen oxides, sodium oxides and black ash particles.
- diesel oil is added to the engine valve outlet to increase the combustion temperature, or added to the inside of the exhaust pipe near the filter element to increase the temperature of the filter element, causing cumulated carbon in the filter elements to be burned out.
- a technique to add diesel oil to the engine valve outlet to increase the combustion temperature for burning out accumulated particles in the filter element It is complicated to install an electronic direct ignition system and a nested ceramic filter element in a diesel vehicle. Further, these conventional methods simply reduce the carbon deposition problem. These methods show no effects on reduction of toxicity.
- the present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide an engine waste gas treatment method and apparatus, which utilizes ozone to decompose volatile organic compounds carried in the waste gas discharged from a vehicle engine, reducing toxicity.
- ozone is a triatomic molecule, consisting of three oxygen atoms. Two atoms of oxygen form the basic oxygen molecule that is essential to life. The third oxygen atom can detach from the ozone molecule, and re-attach to molecules of other substances, thereby altering their chemical composition.
- ozone has many industrial and consumer applications. For example, ozone can be used to remove manganese from water, forming a precipitate which can be filtered. Ozone will also turn cyanides to less toxic cyanates. Further, ozone will also completely decompose urea. Further, ozone generators are practical for use to sanitize and deodorize uninhabited buildings, rooms and motor vehicles. Ozone can be applied to kill bacteria. Ozone can minimize bacterial growth, control parasites and eliminate transmission of some diseases.
- the invention uses the characteristics of ozone for treating the exhausted waste gas of a motor vehicle reduce the toxicity.
- an ozone generator is installed in a motor vehicle and electrically connected to the power circuit of the motor vehicle, and a shunt pipe is connected between the zone generator and the exhaust pipe of the motor vehicle.
- the ozone generator starts to generate ozone that is guided by the shunt pipe into the exhaust pipe of the motor vehicle to mix with exhausted engine waste gas, decomposing volatile organic compounds.
- FIG. 1 is a schematic sectional view showing an engine waste gas treatment apparatus installed in the exhaust pipe of a car in accordance with the present invention.
- FIG. 2 is similar to FIG. 1 but showing the shunt pipe connected between the ozone generator and the exhaust pipe near the waste gas outlet of the exhaust pipe.
- FIG. 3 a schematic sectional view showing an engine waste gas treatment apparatus installed in the exhaust pipe of a motorcycle in accordance with the present invention.
- an engine waste gas treatment method in accordance with the present invention is to install at least one ozone generator 2 in the waste gas discharge path of the exhaust pipe 1 of the (gasoline or diesel) engine of a car.
- the ozone generator 2 has a shunt pipe 21 affixed to the exhaust pipe 1 near the waste gas inlet 11 of the exhaust pipe 1 for output of generated ozone 4 into the exhaust pipe 1 to mix with discharged waste gas.
- generated ozone 4 decomposes volatile organic compounds carried in the discharged waste gas, eliminating or reducing toxicity in discharged waste gas.
- the discharged gas that is diffused into the outside open air is nontoxic or less toxic.
- the ozone generator 2 is electrically connected to the power circuit of the car. When the driver starts the engine of the motor vehicle, the ozone generator 2 is started to generate ozone and to output generated ozone through the shunt pipe 21 into the exhaust pipe 1 to mix with discharged waste gas.
- the shunt pipe 21 of the ozone generator 2 can be affixed to the exhaust pipe 1 near the waste gas outlet 12 of the exhaust pipe 1 for output of generated ozone 4 into the exhaust pipe 1 to mix with discharged waste gas.
- the invention can also be employed to a motorcycle.
- the shunt pipe 21 of the ozone generator 2 is affixed to the exhaust pipe 1 of the engine of a motorcycle (not shown) near the waste gas inlet 11 of the exhaust pipe 1 for output of generated ozone 4 into the exhaust pipe 1 to mix with discharged waste gas.
Abstract
An engine waste gas treatment method and apparatus is disclosed to install an ozone generator in a motor vehicle and electrically connect the ozone generator to the power circuit of the motor vehicle and to connect a shunt pipe between the zone generator and the exhaust pipe of the motor vehicle so that when the motor vehicle is started, the ozone generator starts to generate ozone that is guided by the shunt pipe into the exhaust pipe of the motor vehicle to mix with exhausted engine waste gas, decomposing volatile organic compounds.
Description
- 1. Field of the Invention
- The present invention relates to car engine waste gas treatment technology and more particularly, to an engine waste gas treatment method and apparatus that effectively decompose volatile organic compounds discharged from a car engine, reducing air pollution.
- 2. Description of the Related Art
- A car engine, either gasoline engine or diesel engine, discharges a big amount of waste gas to pollute the atmosphere during operation. Exhaust gases in the atmosphere cause a greenhouse effect, i.e., the rise in temperature that the Earth experiences. A strong greenhouse effect in the atmosphere makes the Earth warmer than usual. An extra warming of the Earth may cause problems for humans, plants, and animals. Since the late 20th century, the strong greenhouse effect in the atmosphere has aroused great concern among people around use. More particularly, the automotive industry has been continuously proposing new measures to reduce the exhaust amount of waste gas. One of the best way to reduce the exhaust amount of waste gas from the diesel engine of a diesel vehicle is to install an exhaust gas purifier in the exhaust pipe of the diesel vehicle. Further, a diesel vehicle uses compression ignition to burn fuel oil or substitute fuel, performing the diesel cycle to convert chemical energy into thermal energy and power output. During combustion, pollutants including PM (particulate matter), smoke, NOx (mono-nitrogen oxides), CO (carbon monoxide), SOx (sodium oxides), CO2 (carbon dioxide), NC (hydrocarbon) and other waste matters are produced and discharged out of the exhaust pipe into the atmosphere, causing damage to the ozone layer, occurrence of acidic rain and rise in greenhouse effect. In case PM (particulate matter) in exhausted waste gas contain polycyclic aromatic hydrocarbons or metal oxides, breathing in such exhausted waste gas may cause lung, bronchi or breathing passage diseases. According to a local air pollution source investigation, 46% of particulate matter and 51% of NOx of mobile source of air pollution came from diesel vehicles. Most big public transportation vehicles are of diesel vehicles. To control discharge of diesel engine waste gas is an important measure to improve air quality.
- Further, the ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface. Ozone is mainly located in the lower portion of the stratosphere from approximately 10 km to 50 km above Earth, though the thickness varies seasonally and geogaphically. Further, ozone is present in low concentrations (0.01˜0.04 ppm) throughout the Earth's atmosphere to prevent abnormal growth of bacteria. However, continuous increase of CFC (chlorofluorocarbon) gas in the atmosphere causes the ozone layer to be seriously weakened. According to investigation, the Earth's surface temperature has raised 2° C. when compared to the record 50 years ago. In consequence, the average environmental magnetic field has dropped from the early 0.5 Gauss to the present 0.45 Gauss.
- Further, to meet new vehicle exhaust emission standards, electronic direct ignition system may be used with a nested ceramic filter element to filtrate carbon dioxide, hydrocarbon, mono-nitrogen oxides, sodium oxides and black ash particles. When the back pressure surpasses a predetermined value, diesel oil is added to the engine valve outlet to increase the combustion temperature, or added to the inside of the exhaust pipe near the filter element to increase the temperature of the filter element, causing cumulated carbon in the filter elements to be burned out. There is known a technique to add diesel oil to the engine valve outlet to increase the combustion temperature for burning out accumulated particles in the filter element. It is complicated to install an electronic direct ignition system and a nested ceramic filter element in a diesel vehicle. Further, these conventional methods simply reduce the carbon deposition problem. These methods show no effects on reduction of toxicity.
- Therefore, it is desirable to provide a measure that effectively reduces the toxicity of the discharged waste gas of a motor vehicle.
- The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide an engine waste gas treatment method and apparatus, which utilizes ozone to decompose volatile organic compounds carried in the waste gas discharged from a vehicle engine, reducing toxicity.
- It is well known that ozone is a triatomic molecule, consisting of three oxygen atoms. Two atoms of oxygen form the basic oxygen molecule that is essential to life. The third oxygen atom can detach from the ozone molecule, and re-attach to molecules of other substances, thereby altering their chemical composition. Further, ozone has many industrial and consumer applications. For example, ozone can be used to remove manganese from water, forming a precipitate which can be filtered. Ozone will also turn cyanides to less toxic cyanates. Further, ozone will also completely decompose urea. Further, ozone generators are practical for use to sanitize and deodorize uninhabited buildings, rooms and motor vehicles. Ozone can be applied to kill bacteria. Ozone can minimize bacterial growth, control parasites and eliminate transmission of some diseases.
- In view of the aforesaid ozone advantages, the invention uses the characteristics of ozone for treating the exhausted waste gas of a motor vehicle reduce the toxicity.
- To achieve the objects of the present invention, an ozone generator is installed in a motor vehicle and electrically connected to the power circuit of the motor vehicle, and a shunt pipe is connected between the zone generator and the exhaust pipe of the motor vehicle. Thus, when the motor vehicle is started, the ozone generator starts to generate ozone that is guided by the shunt pipe into the exhaust pipe of the motor vehicle to mix with exhausted engine waste gas, decomposing volatile organic compounds.
-
FIG. 1 is a schematic sectional view showing an engine waste gas treatment apparatus installed in the exhaust pipe of a car in accordance with the present invention. -
FIG. 2 is similar toFIG. 1 but showing the shunt pipe connected between the ozone generator and the exhaust pipe near the waste gas outlet of the exhaust pipe. -
FIG. 3 a schematic sectional view showing an engine waste gas treatment apparatus installed in the exhaust pipe of a motorcycle in accordance with the present invention. - Referring to
FIG. 1 , an engine waste gas treatment method in accordance with the present invention is to install at least oneozone generator 2 in the waste gas discharge path of theexhaust pipe 1 of the (gasoline or diesel) engine of a car. Theozone generator 2 has a shunt pipe 21 affixed to theexhaust pipe 1 near thewaste gas inlet 11 of theexhaust pipe 1 for output of generatedozone 4 into theexhaust pipe 1 to mix with discharged waste gas. Thus, generatedozone 4 decomposes volatile organic compounds carried in the discharged waste gas, eliminating or reducing toxicity in discharged waste gas. Thus, the discharged gas that is diffused into the outside open air is nontoxic or less toxic. Theozone generator 2 is electrically connected to the power circuit of the car. When the driver starts the engine of the motor vehicle, theozone generator 2 is started to generate ozone and to output generated ozone through the shunt pipe 21 into theexhaust pipe 1 to mix with discharged waste gas. - Referring to
FIG. 2 , the shunt pipe 21 of theozone generator 2 can be affixed to theexhaust pipe 1 near thewaste gas outlet 12 of theexhaust pipe 1 for output of generatedozone 4 into theexhaust pipe 1 to mix with discharged waste gas. - Referring to
FIG. 3 , the invention can also be employed to a motorcycle. According to this application example, the shunt pipe 21 of theozone generator 2 is affixed to theexhaust pipe 1 of the engine of a motorcycle (not shown) near thewaste gas inlet 11 of theexhaust pipe 1 for output of generatedozone 4 into theexhaust pipe 1 to mix with discharged waste gas. - Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
Claims (6)
1. An engine waste gas treatment method, comprising the steps of
a) providing mounting at least one ozone generator on the exhaust pipe of a motor vehicle and electrically connecting each said ozone generator to the power circuit of said motor vehicle for enabling each said ozone generator to generate ozone when said motor vehicle is started; and
b) connecting a shunt pipe between each said ozone generator and the exhaust pipe of said motor vehicle to guide generated ozone from each said ozone generator into the exhaust pipe of said motor vehicle to mix with exhausted engine waste gas.
2. The engine waste gas treatment method as claimed in claim 1 , wherein said shunt pipe is connected to the exhaust pipe of said motor vehicle near the waste gas inlet of the exhaust pipe.
3. The engine waste gas treatment method as claimed in claim 1 , wherein said shunt pipe is connected to the exhaust pipe of said motor vehicle near the waste gas outlet of the exhaust pipe.
4. An engine waste gas treatment method used in a motor vehicle for treating the waste gas discharged out of the engine through the exhaust pipe of the motor vehicle, comprising:
at least one ozone generator carried in said motor vehicle and electrically connected to the power circuit of said motor vehicle for generating ozone when the engine of said motor vehicle is started; and
at least one shunt pipe connected between said ozone generator and the exhaust pipe of said motor vehicle for guiding generated ozone out of said at least one ozone generator into the exhaust pipe of said motor vehicle to mix with exhausted engine waste gas.
5. The engine waste gas treatment method as claimed in claim 4 , wherein said shunt pipe is connected to the exhaust pipe of said motor vehicle near the waste gas inlet of the exhaust pipe.
6. The engine waste gas treatment method as claimed in claim 4 , wherein said shunt pipe is connected to the exhaust pipe of said motor vehicle near the waste gas outlet of the exhaust pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/625,541 US20110120105A1 (en) | 2009-11-24 | 2009-11-24 | Engine waste gas treatment method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US12/625,541 US20110120105A1 (en) | 2009-11-24 | 2009-11-24 | Engine waste gas treatment method and apparatus |
Publications (1)
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US20110120105A1 true US20110120105A1 (en) | 2011-05-26 |
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Family Applications (1)
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US12/625,541 Abandoned US20110120105A1 (en) | 2009-11-24 | 2009-11-24 | Engine waste gas treatment method and apparatus |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120090561A1 (en) * | 2010-10-15 | 2012-04-19 | Wen-Lo Chen | Gas water heater with waste gas purification and filtration functions |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010003898A1 (en) * | 1996-12-09 | 2001-06-21 | Lockheed Martin Corporation | Method and apparatus for reducing pollutants |
US6557340B1 (en) * | 1998-10-09 | 2003-05-06 | Johnson Matthey Public Limited Company | System and method for purifying exhaust gases |
US20040045279A1 (en) * | 2001-08-31 | 2004-03-11 | Reinhard Pfendtner | Device and method for exhaust gas after-treatment |
US6716398B2 (en) * | 1996-06-28 | 2004-04-06 | Litex, Inc. | Method and apparatus for using hydroxyl to reduce pollutants in the exhaust gases from the combustion of a fuel |
US20050241295A1 (en) * | 2002-07-12 | 2005-11-03 | Norbert Breuer | Device and method for purification of exhaust gas in an internal combustion engine |
US20060225406A1 (en) * | 2005-04-12 | 2006-10-12 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus and method thereof |
US20090019844A1 (en) * | 2005-06-17 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Exhaust Gas Purification System Utilizing Ozone |
US20090308060A1 (en) * | 2005-04-26 | 2009-12-17 | Juij Suzuki | Process for purifying exhaust gases and apparatus for purifying exhaust gases |
US20100043406A1 (en) * | 2006-12-28 | 2010-02-25 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control apparatus for internal combustion engine |
-
2009
- 2009-11-24 US US12/625,541 patent/US20110120105A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6716398B2 (en) * | 1996-06-28 | 2004-04-06 | Litex, Inc. | Method and apparatus for using hydroxyl to reduce pollutants in the exhaust gases from the combustion of a fuel |
US20010003898A1 (en) * | 1996-12-09 | 2001-06-21 | Lockheed Martin Corporation | Method and apparatus for reducing pollutants |
US6557340B1 (en) * | 1998-10-09 | 2003-05-06 | Johnson Matthey Public Limited Company | System and method for purifying exhaust gases |
US20040045279A1 (en) * | 2001-08-31 | 2004-03-11 | Reinhard Pfendtner | Device and method for exhaust gas after-treatment |
US20050241295A1 (en) * | 2002-07-12 | 2005-11-03 | Norbert Breuer | Device and method for purification of exhaust gas in an internal combustion engine |
US20060225406A1 (en) * | 2005-04-12 | 2006-10-12 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus and method thereof |
US20090308060A1 (en) * | 2005-04-26 | 2009-12-17 | Juij Suzuki | Process for purifying exhaust gases and apparatus for purifying exhaust gases |
US20090019844A1 (en) * | 2005-06-17 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Exhaust Gas Purification System Utilizing Ozone |
US20100043406A1 (en) * | 2006-12-28 | 2010-02-25 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control apparatus for internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120090561A1 (en) * | 2010-10-15 | 2012-04-19 | Wen-Lo Chen | Gas water heater with waste gas purification and filtration functions |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |