| 主权项 |
1. A gas sensor comprising:
a gas sensor element extending in an axial direction and having a gas detection portion on a front side thereof; a tubular metallic shell surrounding a periphery of the gas sensor element and holding the gas sensor element; and a tubular protector fixed to a front side of the metallic shell, wherein the front side of the gas sensor element faces an internal space formed between an inner surface of the protector and an inner surface of the metallic shell, the protector includes:
a fixing portion that externally surrounds the front side of the metallic shell and is fixed to the metallic shell;a space partition portion that extends radially inward from a front end of the fixing portion, and has inner gas introduction holes communicating with the internal space;a side wall that is connected to a radially inner side of the space partition portion, and extends frontward relative to the space partition portion; anda bottom wall that is formed on a front side of the side wall, and has an inner gas discharge hole opened therethrough, and the gas sensor element is located rearward relative to an inner surface side of an inner gas introduction hole located on a frontmost side among the inner gas introduction holes. |
