Niterra Co., Ltd.

Kunihiko Yonezu

Masana Okai

Masashi Nomura

Daisuke Matsuyama

Yuto Inose

Yuji Shimazaki

Masayuki Yoshida

A gas sensor including: a sensor element; a metallic shell; and a single-wall tubular protector. The protector has a gas introduction hole and a gas discharge hole disposed on a forward end side in relation to the gas introduction hole. The metallic shell has a fixing portion whose outer surface is fixed to a pipe, and a larger-diameter tool engagement portion located on a rear end side of the fixing portion and used to attach the gas sensor. A distance Lin the axial O direction between the gas introduction hole and the gas discharge hole is greater than a distance Lin the axial direction between the tool engagement portion and the gas introduction hole; and a forward end (a) of the sensor element is located on the forward end side in relation to the gas introduction hole.

Gas sensor and gas sensor attached structure

A gas sensor () including a sensor element () having electrode pads (-); a separator (); and a plurality of metal terminals () each having a body portion () and a front end portion (), and being insulated from each other by the separator. The separator has an element storage portion () penetrating in the axial-line direction or recessed toward a rear side from a front facing surface of the separator, the element storage portion has a first storage space () at a front side thereof and a second storage space () at a rear side thereof, the second storage space has a rotation restriction wall () configured such that a relative rotation allowable angle 2θ between the sensor element and the separator is smaller than in the first storage space, and the rear end side of the sensor element is stored in the second storage space.

Gas sensor

Growing community of inventors

Nagoya, Japan

Kunihiko Yonezu