发明申请
- 专利标题: PRESSURE SENSOR WITH FLOW PORTING HAVING INTEGRAL FLAME-PROOF SAFETY MECHANISM
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申请号: US15632059申请日: 2017-06-23
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公开(公告)号: US20180259416A1公开(公告)日: 2018-09-13
- 发明人: George Hershey , Richard D. Daugert , Ronald E. Beselt
- 申请人: Honeywell International Inc.
- 主分类号: G01L19/06
- IPC分类号: G01L19/06 ; G01L7/08
摘要:
An apparatus includes a sensor body and a sensor configured to measure pressure. The apparatus also includes at least one pressure input in or on the sensor body, where the at least one pressure input is configured to provide at least one input pressure to the sensor. The apparatus further includes multiple fluid passages configured to convey the at least one input pressure from the at least one pressure input to the sensor using a fill fluid. The multiple fluid passages are configured to both (i) transport the fill fluid and (ii) absorb thermal energy in a flame created by the sensor before the flame exits the sensor body. The fluid passages can include long and narrow straight passages, long and narrow curved or helical passages, and turns or bends. The fluid passages can have small cross-sections relative to their lengths.