MUMBAI, India, Oct. 11 -- Intellectual Property India has published a patent application (202527089550 A) filed by Cataler Corporation, Shizuoka, Japan, on Sept. 19, for 'exhaust gas purification catalyst.'
Inventor(s) include Onoe, Ryota; Takasu, Ryosuke; Fujita, Nozomi; Shirayama, Yodai; and Ito, Masaya.
The application for the patent was published on Oct. 10, under issue no. 41/2025.
According to the abstract released by the Intellectual Property India: "An exhaust gas purification catalyst disclosed herein comprises a catalyst layer 20 having a lower catalyst layer 22 and an upper catalyst layer 24. Moreover, a lower layer front portion A is provided at an upstream side of the lower catalyst layer 22, and a lower layer rear portion B is provided at a downstream side of the lower catalyst layer 22. Additionally, an upper layer front portion C is provided at an upstream side of the upper catalyst layer 24, and an upper layer rear portion D is provided at a downstream side of the upper catalyst layer 24. Moreover, the type of catalyst metal is separately set for each of the front portion A, the lower layer rear portion B, the upper layer front portion C, and the upper layer rear portion D. Through this, appropriate purification performance can be exhibited according to the operating status of an internal combustion engine. Additionally, with this exhaust gas purification catalyst, from the perspective of achieving both exhaust gas purification performance and suppression of pressure loss, a lower layer lap portion 25 and an upper layer lap portion 27 are formed so as not to overlap in a cylindrical axis direction X. Through this, an exhaust gas purification catalyst that can exhibit appropriate purification performance according to the operating status of the internal combustion engine can be provided."
The patent application was internationally filed on Dec. 11, 2023, under International application No.PCT/JP2023/044135.
Disclaimer: Curated by HT Syndication.
