Gas purifying catalyst for internal combustion engine
AssigneeHyundai Motor Company
InventorsCheol Beom Lim, Yoon Sang Nam, Jin Woo Choung, Youngil Song
Life of this patent
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Abstract
Disclosed is a gas purifying catalyst for an internal combustion engine comprising: a carrier and a catalyst layer formed on the carrier, the catalyst layer including a first catalyst, a second catalyst and a third catalyst. The first catalyst comprises Pd supported in a first support, the first support comprising alumina. The second catalyst comprises Rh supported in a second support, the second support comprising a complex oxide of ceria-zirconia. The third catalyst comprising Pd supported in a third support, the third support comprising a complex oxide of ceria-zirconia.
Claims13
A gas purifying catalyst for an internal combustion engine, comprising:
- a carrier and a catalyst layer formed on the carrier,
- wherein the catalyst layer includes:
- a mixture of a first catalyst including Pd as a first active metal supported in a first support, the first support comprising alumina;
- a second catalyst including Rh as a second active metal supported in a second support, the second support comprising a complex oxide of ceria-zirconia;
- and a third catalyst including Pd as a third active metal supported in a third support, the third support comprising a complex oxide of ceria-zirconia,
- wherein the catalyst layer is a single layer.
A gas purifying catalyst for an internal combustion engine, comprising:
- a carrier and a catalyst layer formed on the carrier,
- wherein the catalyst layer includes:
- at least one catalyst including Pd as a first active metal supported in a support, the support comprising a complex oxide of ceria-zirconia, and
- wherein the catalyst layer is a single layer,
- wherein the gas purifying catalyst further comprises a second catalyst including Rh as a second active metal supported in a second support, the second support comprising a complex oxide of ceria-zirconia, a third catalyst including Pd as a third active metal supported in a third support, the third support comprising a complex oxide of ceria-zirconia.
Dependencies are inferred from the claim text.