Integrated pressure and temperature sensor
AssigneeSensata Technologies, Inc.
InventorsNeil Petrarca, Edwin Vonk
Life of this patent
Estimating the term…
Abstract
A device for sensing pressure and temperature in a fluid environment includes a cover defining an interior. A thermistor tube is positioned at least partially within the interior, the thermistor tube extending substantially along a longitudinal axis. A port body is also positioned at least partially within the interior, the port body forming a channel which extends along the longitudinal axis for receiving a fluid from the fluid environment. A diaphragm is affixed within the port body. The diaphragm has a first surface exposed to the fluid within the channel and a second surface sealed from the channel.
Claims20
A device for sensing pressure and temperature in a fluid environment comprising:
- a cover defining an interior, the cover including, within the interior, an annular flange;
- a port body having:
- an outer annular ring coupling with the annular flange to form a double clinch seal;
- and interior walls which surround a thermistor tube to form a channel for receiving a fluid from the fluid environment, the channel extending substantially parallel to a longitudinal axis;
- at least one diaphragm affixed within the port body along a plane substantially parallel to the longitudinal axis, each of the diaphragms having at least one pressure sensing element coupled to a surface distal to the channel;
- and
- an electronics module assembly having a first end and a second end, the first end positioned above the thermistor tube along the longitudinal axis and having a plurality of electronic components, the second end positioned within the thermistor tube and having a plurality of thermistor elements electrically connected to the electronic components,
- wherein:
- the thermistor elements are each calibrated to sense temperature within a different specified range;
- the pressure sensing elements are each:
- calibrated to sense pressure within a different specified range;
- and offset from the electronics module assembly;
- and
- the double clinch seal hermetically seals the port body to the cover.
A device for sensing pressure and temperature in a fluid environment comprising:
- a cover defining an interior;
- a thermistor tube at least partially within the interior, the thermistor tube extending substantially along a longitudinal axis;
- a port body at least partially within the interior, the port body forming a channel which extends along the longitudinal axis for receiving a fluid from the fluid environment;
- and
- a first diaphragm affixed within the port body and having:
- a first surface exposed to the fluid within the channel;
- and a second surface sealed from the channel.
A device for sensing pressure and temperature in a fluid environment comprising:
- a cover defining an interior, the cover including, within the interior, an annular flange;
- and
- a port body positioned within the interior and having an outer annular ring, the outer annular ring coupling with the annular flange to form a mechanical seal,
- wherein the mechanical seal seals the port body to the cover.
Dependencies are inferred from the claim text.