Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Denso Corpora Tion

Haruki Kondo

Hiroki Nishijima

Yoshiharu Miyake

Masayuki Tamura

Hirofumi Suzuki

Makoto Nakae

Atsushi Murai

Kei Sugiura

Toru Takeuchi

Yasushi Hirata

Tooru Takeuchi

The present disclosure provides a gas sensor element comprising a porous protective layer with improved water repellency upon continuously water pouring, which is a gas sensor element comprising:

Gas sensor element

A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity &#x3bb; in the range of 0.2 to 5 W/mK, and has &#x3bb;Cp&#x3c1;, which is the product of the thermal conductivity &#x3bb;(W/mK), density &#x3c1;(g/m), and specific heat Cp(J/gK), in the range of 5.3&#xd7;10to 2.1&#xd7;10WJ/mK.

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Okazaki, Japan

Haruki Kondo