Abstract: The temperature sensor includes a temperature sensing element, a pair of element electrode wires, and a pair of terminals. An overlapping wire portion of each of the element electrode wires is connected to the terminal in such a manner as to overlap the terminal in an overlapping direction. A fillet portion is disposed on a side surface of the overlapping wire portion. The fillet portion has a pair of fillet pieces formed in such a manner as to crawl up from a specific main surface that is a main surface at the overlapping wire portion side in the terminal. In a cross section of the temperature sensor orthogonal to a sensor axis direction and passing through the fillet portion, the maximum length in a width direction of the fillet portion is defined as a fillet maximum width A, and a length in a width direction between a pair of boundary portions between the pair of fillet pieces and the specific main surface is defined as a boundary width B.

Abstract: A temperature sensor provided with: an element that comprises a resistor which has a resistance value that changes with temperature thereof, and a lead wire; a signal wire that is bonded to the lead wire by welding; and a cover that covers the element and a welded part between the lead wire and the signal wire, where the lead wire comprises a material in which oxide particles are dispersed in platinum or platinum alloy; and the welded part has a welded part interface region along an interface with the lead wire or the signal wire, and a welded part main region inside thereof, and a volume ratio of the oxide particles occupying the welded part interface region is larger than a volume ratio of the oxide particles occupying the welded part main region.

Abstract: A temperature sensor is utilized in a hydrogen tank. The temperature sensor is provided with a temperature sensing element, a pair of element electrode wire, a pair of conduction members and a housing. The temperature sensing element detects the temperature in the hydrogen tank. The pair of element electrode wires are electrically connected to the temperature sensing element. The pair of conduction members are electrically connected to mutually different element electrode wires. The housing is made of resin, that is, a material containing resin. The housing includes a pair of through holes in which the pair of conduction members are each inserted therethrough and supported thereby. A gap is formed between at least one of conduction members and an inner peripheral surface of the through hole of the housing.

Abstract: The temperature sensor includes a temperature sensing element, a pair of element electrode wires, and a pair of terminals. An overlapping wire portion of each of the element electrode wires is connected to the terminal in such a manner as to overlap the terminal in an overlapping direction. A fillet portion is disposed on a side surface of the overlapping wire portion. The fillet portion has a pair of fillet pieces formed in such a manner as to crawl up from a specific main surface that is a main surface at the overlapping wire portion side in the terminal. In a cross section of the temperature sensor orthogonal to a sensor axis direction and passing through the fillet portion, the maximum length in a width direction of the fillet portion is defined as a fillet maximum width A, and a length in a width direction between a pair of boundary portions between the pair of fillet pieces and the specific main surface is defined as a boundary width B.

Abstract: A temperature sensor provided with: an element that comprises a resistor which has a resistance value that changes with temperature thereof, and a lead wire; a signal wire that is bonded to the lead wire by welding; and a cover that covers the element and a welded part between the lead wire and the signal wire, where the lead wire comprises a material in which oxide particles are dispersed in platinum or platinum alloy; and the welded part has a welded part interface region along an interface with the lead wire or the signal wire, and a welded part main region inside thereof, and a volume ratio of the oxide particles occupying the welded part interface region is larger than a volume ratio of the oxide particles occupying the welded part main region.

Abstract: A temperature sensor includes a temperature detector, an element electrode wire, a lead wire, and an intermediate member. Each of the lead wire and the intermediate member is made of a Ni-based alloy or an Fe-based alloy. The element electrode wire and the intermediate member are welded together in such a manner that opposing surfaces, facing each other abut against each other to constitute an element-side weld. The intermediate member and the lead wire are welded together such that they overlap each other in a longitudinal direction Z to constitute a lead-side weld. The lead wire is extended closer to the temperature detector than the element-side weld is located. A gap between the element electrode wire and the lead wire at least in the longitudinal direction Z is filled with a filler. The element electrode wire, the element-side weld, and the lead wire are fixed to one another by the filler.

Abstract: A temperature sensor includes a temperature detector, an element electrode wire, a lead wire, and an intermediate member. Each of the lead wire and the intermediate member is made of a Ni-based alloy or an Fe-based alloy. The element electrode wire and the intermediate member are welded together in such a manner that opposing surfaces, facing each other abut against each other to constitute an element-side weld. The intermediate member and the lead wire are welded together such that they overlap each other in a longitudinal direction Z to constitute a lead-side weld. The lead wire is extended closer to the temperature detector than the element-side weld is located. A gap between the element electrode wire and the lead wire at least in the longitudinal direction Z is filled with a filler. The element electrode wire, the element-side weld, and the lead wire are fixed to one another by the filler.

Abstract: A cylinder head includes a combustion chamber recess on a lower surface, an exhaust port with downstream and upstream side channels, and downstream and upstream liners respectively inserted into the downstream and upstream side channels. The downstream side channel has an open end at a side surface of the cylinder head and an opposite end sealed by a bottom wall. The upstream side channel has an end open to the combustion chamber recess and an opposite end connected to a side portion of the downstream side channel. The downstream side liner includes a generally tubular member with a linear axis and has an insertion end abutting the bottom wall. The downstream side liner has a connecting hole in a side portion facing the upstream side channel and engaged by the upstream side liner, which also includes a generally tubular member.