Patent application number | Description | Published |
20080277282 | GAS SENSOR AND MANUFACTURING METHOD THEREOF - There is provided a gas sensor, which includes a sensor element extending axially of the gas sensor and having a gas sensing portion at a front end thereof and an electrode portion at a rear end thereof, a cylindrical metal shell retaining therein the sensor element with the gas sensing portion and the electrode portion protruding from front and rear ends of the metal shell, respectively, and having a flange portion and a rear end portion located on a rear side of the flange portion, a cylindrical protection cover having a front end fitted onto the rear end portion of the metal shell so as to cover the electrode portion and a weld joint through which the entire circumference of the front end of the protection cover is joined through the metal shell. The weld joint extends from an end face of the protection cover to the metal shell. | 11-13-2008 |
20100139379 | SENSOR - A sensor including a sensor element including a plurality of electrode terminals, terminal metal fittings, a terminal surrounding member, and lead wires connected to respective terminal metal fittings. The terminal surrounding member is divided into a front side surrounding member and a rear side surrounding member in the front-rear direction, and a rear end face of the front side surrounding member abuts a front end face of the rear side surrounding member. At least one of the terminal metal fittings includes a protruding piece portion protruding in a lateral direction and held between the rear end face of the front side surrounding member and the front end face of the rear side surrounding member. | 06-10-2010 |
20120006093 | GAS SENSOR - [Objective] To provide a gas sensor in which the insulation among conduction members is stably secured through stable maintenance of the insulation property of a separator provided within a sheath, whereby a normal output can be obtained from a detection element. | 01-12-2012 |
20120255356 | GAS SENSOR AND GAS SENSOR INSTALLATION STRUCTURE | 10-11-2012 |
20120325661 | GAS SENSOR - A gas sensor includes a plate-like gas sensor element, a tubular metallic shell which holds the gas sensor element, and a seal member disposed between the inner surface of the metallic shell and outer surface of the gas sensor element. The gas sensor further includes a metal packing having a through-hole of substantially rectangular cross section through which the gas sensor element extends, and pressing forward the seal member with a flat surface thereof in direct contact with the rearward oriented surface of the seal member. The flat surface of the metal packing has an outside diameter equal to or greater than that of the rearward oriented surface of the seal member. A clearance between an inner edge of the flat surface of the metal packing and the surface of the gas sensor element is one-half or less the thickness of the gas sensor element. | 12-27-2012 |
20130305809 | GAS SENSOR - In a gas sensor ( | 11-21-2013 |
20140298931 | SENSOR AND TERMINAL MEMBER - A sensor includes a detection element; a plurality of terminal members, each of the terminal members including an elongated frame body portion extending along the axial direction, an element contact portion in elastic contact with an electrode terminal, and a folded portion connecting the frame body portion and the element contact portion; and a separator. The element contact portion of each of the terminal members has a turning portion which turns inward with respect to the width direction between the folded portion and a contact portion in contact with an electrode terminal. In those two of the terminal members which are adjacent to each other along the width direction, the distance along the width direction between the contact portions is smaller than the distance along the width direction between the frame body portions. | 10-09-2014 |
20140305188 | GAS SENSOR - A protector ( | 10-16-2014 |
20140338424 | GAS SENSOR - Disclosed is a gas sensor having a metal shell, a holder placed in the metal shell and a sensor element inserted through an axial insertion hole of the holder. The holder has a recessed portion recessed toward the rear from a front end face of the holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end of the porous protection layer is situated within the recessed portion of the holder and is located at the rear side with respect to the front end face of the holder while maintaining a space between an inner circumferential surface of the recessed portion and an outer circumferential surface of the porous protection layer. | 11-20-2014 |
20140339081 | GAS SENSOR - Disclosed is a gas sensor including a metal shell, a ceramic holder placed in an axial inner hole of the metal shell and a sensor element inserted through an insertion hole of the ceramic holder. The ceramic holder has a recessed hole recessed toward the rear from a front-facing surface of the ceramic holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end part of the protection layer is accommodated in the recessed hole with a space left therebetween. Further, the ceramic holder has a front circumferential edge defined between an inner circumferential surface of the recessed hole and the front-facing surface of the ceramic holder such that the whole of the front circumferential edge is located radially inside of a radially innermost position of the axial hole. | 11-20-2014 |