Pressure sensor comprising a tip secured to a port

Patent metadata

Field	Value
Publication number	US-9909947-B2
Application number	US-201514940665-A
Country	US
Kind code	B2
Filing date	Nov 13, 2015
Priority date	Nov 13, 2015
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

In an embodiment, a pressure sensor includes a tip secured to a port. The tip includes an opening for receiving pressure to be measured by the pressure sensor. The port includes a threaded section for mounting the pressure sensor in a fixture such as, for example, a rail. The port also includes a flexible section, a cavity, and an opening. The opening in the tip receives pressure from an outside source and channels the pressure to the opening of the port. The opening of the port receives the pressure from the tip and channels the pressure to the cavity. The pressure received in the cavity applies a force to the flexible section which flexes in response to the force. Moreover, forces are provided by the tip and the threaded section to keep the tip secured to the port.

First claim

What is claimed is:

1. A pressure sensor comprising:
a tip having an opening for receiving pressure to be measured by the pressure sensor; and
a port secured to the tip, the port having:
a threaded section for mounting the pressure sensor in a threaded mounting bore defined by a rail of an internal combustion engine so that when mounted, the threaded mounting bore and threaded section create a compressive force to maintain the tip and port sealingly engaged,
a stepped cavity, and
an opening for channeling pressure, received by the opening of the tip, to the cavity,
wherein the tip includes a guide that fits inside of the opening of the port.

2. The pressure sensor of claim 1 , wherein the tip includes a bore, and wherein the opening of the tip is located at one end of the bore.

3. The pressure sensor of claim 1 , wherein the tip includes a platform adjacent to the guide, and
wherein the guide includes a first edge and the platform includes a second edge and a third edge, and
wherein the second edge has a first end and a second end, the first end being opposite of the second end, the first end being adjacent to the first edge and second end being adjacent to the third edge, and wherein the second edge slopes at an angle from the first end towards the second end.

4. The pressure sensor of claim 1 , wherein the port and tip are press-fitted together to secure the port to the tip.

5. The pressure sensor of claim 1 , wherein the port and the tip are welded together to secure the port to the tip.

6. The pressure sensor of claim 1 , wherein the port and the tip are soldered together to secure the port to the tip.

7. The pressure sensor of claim 1 , wherein the port and the tip are bonded together with an adhesive to secure the port to the tip.

8. The pressure sensor of claim 1 , wherein the port and the tip are compressed together to secure the port to the tip.

9. The pressure sensor of claim 1 , wherein the cavity includes a first section, a second section, and a third section, and
wherein the first section has a width that is smaller than the second section and the second section has a width that is smaller than the third section.

10. A pressure sensor comprising:
a tip having an opening for receiving pressure to be measured by the pressure sensor; and
a port secured to the tip, the port having:
a threaded section for mounting the pressure sensor in a threaded mounting bore defined by a rail of an internal combustion engine so that when mounted, the threaded mounting bore and threaded section create a compressive force to maintain the tip and port sealingly engaged,
a stepped cavity, and
an opening for channeling pressure, received by the opening of the tip, to the cavity,
wherein the tip includes a guide and a platform and the port includes an opening, and
wherein the guide enters the opening of the port, and
wherein the platform includes an edge that acts as a stop for the tip to limit an entrance of the guide into the opening.

Assignees

• Sensata Technologies Inc

Inventors

• Reuter Calvin S
• Uiterkamp Ernie Schoot
• Goncalves Daniel
• Willner Andrew
• Mcbrine Mark
• Ambady Prasanth

Classifications

• G01L9/0041

  Transmitting or indicating the displacement of flexible diaphragms · CPC title

• F02M2200/247

  Pressure sensors · CPC title

• G01L19/0038

  being part of the housing (other details about the housing G01L19/14) · CPC title

• G01L19/003

  using a detachable interface or adapter between the process medium and the pressure gauge · CPC title

• F02D2200/0602

  Fuel pressure · CPC title