Method and tooling for making an insulator for a condition sensing spark plug
US10177539B2 · kind B2 · utility
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19References
9Claims
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Key dates
| Filing date | Jan 25, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2270/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods of making an insulator for a condition sensing spark plug and tooling that can be used to perform the various methods, the tooling and methods involving machining one or more channels in the insulator body. The machined channels can be used to accommodate one or more wires from a sensing, display, or processing device. In one particular example, the wires are thermocouple wires used to sense temperature in an internal combustion engine while the spark plug is in use. The methods and tooling may result in channels that are formed more precisely, economically, and efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.