Pressure measuring glow plug
US10641487B2 · kind B2 · utility
0Cited by
29References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | May 9, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2007/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Described is a pressure measuring glow plug with a housing, a glow pin, which projects out of the housing and can be displaced in its longitudinal direction relative to the housing against a restoring force. A sensor acquires the position of the glow pin or a pressure acting on the glow pin, and a center pole is arranged in the housing and electrically connected to the glow pin via a contact spring. This disclosure provides that the contact spring is a U-shaped, bent metal strip, which in a middle section has a reduced width, and broadens from the middle section toward its two ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.