Patents by Inventor John Vito Cavataio
John Vito Cavataio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9810118Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: September 8, 2010Date of Patent: November 7, 2017Assignee: Ford Global Technologies, LLCInventors: Haren Sakarai Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Patent number: 8240132Abstract: This catalyst system simultaneously removes ammonia and enhances net NO, conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: March 9, 2007Date of Patent: August 14, 2012Assignee: Ford Global Technologies, Inc.Inventors: Haren S. Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Publication number: 20110005200Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: ApplicationFiled: September 8, 2010Publication date: January 13, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Haren S. GANDHI, John Vito CAVATAIO, Robert Henry HAMMERLE, Yisun CHENG
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Publication number: 20100209321Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: ApplicationFiled: February 16, 2010Publication date: August 19, 2010Applicant: Ford Global Technologies, LLCInventors: Haren S. Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Patent number: 7674743Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: December 1, 2008Date of Patent: March 9, 2010Assignee: Ford Global Technologies, LLCInventors: Haren Sakarai Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Patent number: 7640730Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: March 9, 2007Date of Patent: January 5, 2010Assignee: Ford Global Technologies, LLCInventors: Haren S. Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Publication number: 20090149318Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: ApplicationFiled: December 1, 2008Publication date: June 11, 2009Applicant: Ford Global Technologies, LLCInventors: Haren S. GANDHI, John Vito CAVATAIO, Robert Henry HAMMERLE, Yisun CHENG
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Patent number: 7485273Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: March 9, 2007Date of Patent: February 3, 2009Assignee: Ford Global Technologies, LLCInventors: Haren S. Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Patent number: 7332135Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: GrantFiled: October 22, 2002Date of Patent: February 19, 2008Assignee: Ford Global Technologies, LLCInventors: Haren S Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng
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Publication number: 20040076565Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.Type: ApplicationFiled: October 22, 2002Publication date: April 22, 2004Inventors: Haren S. Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng