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Effect of Precious Metal Catalyst on TiO 2 Thickfilm HEGO Sensor with Multi-Layer Alumina Substrate
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English
Abstract
The basic characteristics of the TiO2 sensor were introduced on a previous SAE paper which was submitted by NGK Spark Plug Co., Ltd. and further discussed on several other papers which have also been recently published. This paper will describe the effect of a precious metal catalyst on vehicle emissions. Emphasis is placed on the effect of the distribution of the precious metal catalyst in the titania element which significantly affects the reaction among unburned components in the exhaust gas as well as sensor performance.
The relationship between the catalyst distribution in the sensor element, and the closed loop emission results, including test variability, will also be discussed in this paper.
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Authors
- Akio Takami - NTK Technical Ceramic Div. NGK Spark Plug Co., Ltd.
- Toshitaka Matsuura - NTK Technical Ceramic Div. NGK Spark Plug Co., Ltd.
- Shigeru Miyata - NTK Technical Ceramic Div. NGK Spark Plug Co., Ltd.
- Keizo Furusaki - NTK Technical Ceramic Div. NGK Spark Plug Co., Ltd.
- Yuzuru Watanabe - NTK Technical Ceramic Div. NGK Spark Plug Co., Ltd.
Citation
Takami, A., Matsuura, T., Miyata, S., Furusaki, K. et al., "Effect of Precious Metal Catalyst on TiO2 Thickfilm HEGO Sensor with Multi-Layer Alumina Substrate," SAE Technical Paper 870290, 1987, https://doi.org/10.4271/870290.Also In
References
- Rivard J. “Closed Loop Electronic Fuel injector Control of the Internal Combustion Engine” SAE Paper number 73005
- Logothetis E.M. “Sensors for Emissions” 12th National Syro, Ceramics Service Manual 1976 128 157
- Takami A. Matsuura T. Sekiya T. Okawa T. Wantanabe Y. “Progress in Lead Toleant Titania Exhaust Gas Oxygen Sensor” SAE Paper number 850381
- Takeuchi T. Takahashi H. Soji K. Kondo H. Igarashi I. “Oxygen Sensors A/F Control” Motor Vehicle Progress Harmony 1983 627 636 SAE Paper number 830929
- Saji K. Takahashi H. Kondo H. Takeuchi T. Igrashi I. “Characteristics of TiO 2 Oxygen Sensor in Nonequilibrium Gas Mixture” Proc. of the International Meeting on Chemical Sensors 1983 171 176
- Gibbons G.F. Meitzler A.H. Foots L.R. Zacmanidis P.J. Beaudoin G.L. “Automotive Exhaust Sensors Using Titania Ceramics” SAE Paper number 750224