Sensor for recording a pressure of a fluid medium

Patent metadata

Field	Value
Publication number	US-9733143-B2
Application number	US-201514858650-A
Country	US
Kind code	B2
Filing date	Sep 18, 2015
Priority date	Sep 19, 2014
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

A sensor is provided for recording a pressure of a fluid medium. The sensor includes a sensor housing, a pressure sensor module that is at least partially disposed in the sensor housing, a pressure connection having a pressure channel, and a throttle element for throttling a pressure prevailing in the pressure channel. On a side facing the pressure sensor module, the throttle element has at least one first recessed portion and, on a side facing away from the pressure sensor module, at least one second recessed portion.

First claim

What is claimed is:

1. A sensor for recording a pressure of a fluid medium, comprising: a sensor housing; a pressure sensor module that is at least partially disposed in the sensor housing; a pressure connection having a pressure channel; and a throttle element for throttling a pressure prevailing in the pressure channel, wherein: a first face of the throttle element has at least one recess by which the first face includes a raised portion that faces the pressure sensor module and a recessed portion that faces the pressure sensor module and that is at a further distance from the pressure sensor module than the raised portion and, a second face of the throttle element, which is opposite to the first face, has at least one second recess by which the second face includes a recessed portion that faces away from the pressure sensor module and a raised portion that faces away from the pressure sensor module and that is at a further distance from the pressure sensor module than the recessed portion.

2. The sensor as recited in claim 1 , at least one of the first recess and the second recess is groove-shaped.

3. The sensor as recited in claim 1 , wherein the throttle element is configured symmetrically relative to a plane extending parallel to the side facing the pressure sensor module and the side facing away from the pressure sensor module.

4. The sensor as recited in claim 3 , wherein the first recess and the second recess oppose one another with the plane extending therebetween.

5. The sensor as recited in claim 1 , wherein the throttle element is configured between the pressure sensor module and an opening of the pressure channel.

6. The sensor as recited in claim 1 , wherein the pressure channel is cylindrically formed about a cylinder axis, and wherein at least one of the first recess and the second recess extends essentially orthogonally to the cylinder axis.

7. The sensor as recited in claim 1 , wherein:
the throttle element is disk-shaped at one diameter; and
at least one of the first recess and the second recess extends parallel to the diameter completely over at least one of:
a dimension of the side facing the pressure sensor module; and
a dimension of the side facing away from the pressure sensor module.

8. The sensor as recited in claim 1 , wherein:
the throttle element includes two rounded lateral surfaces that are opposite each other and two flattened lateral surfaces that are opposite each other;
the two rounder lateral surfaces and the two flattened lateral surfaces all extend from the first face to the second face; and
a longitudinal extension of at least one of the first recess and the second recess extends parallel to a direction that connects the two flattened lateral surfaces.

9. The sensor as recited in claim 1 , wherein the pressure sensor module includes a sensor chip and a support, the sensor chip being disposed on the support, and the throttle element adjoining the support.

10. The sensor as recited in claim 1 , wherein the throttle element is at least partially fabricated of one of a metal and a plastic.

11. A sensor for recording a pressure of a fluid medium, comprising:
a sensor housing;
a pressure sensor module that is at least partially disposed in the sensor housing;
a pressure connection having a pressure channel; and
a throttle element for throttling a pressure prevailing in the pressure channel, wherein:
the throttle element includes:
a first external face facing the pressure sensor module and facing away from an inlet of the fuel medium;
a second external face facing away from the pressure sensor module and facing towards the inlet; and
four lateral external faces that each extends from the first external face to the second external face;

a first two of the four lateral external faces are flat and oppose each other;
a second two of the four lateral external faces are curved about a longitudinal axis and oppose each other, with each of the first two of the four lateral external faces extending from a respective edge of one of the second two of the four lateral external faces to a respective edge of the other of the second two of the four lateral external faces;
a groove is formed in the first external face that faces the pressure sensor module by which the first external face includes a raised portion that faces the pressure sensor module and a recessed portion that faces the pressure sensor module and that is at a further distance from the pressure sensor module than the raised portion;
a groove is formed in the second external face that faces away from the pressure sensor module by which the second external face includes a recessed portion that faces away from the pressure sensor module and a raised portion that faces away from the pressure sensor module and that is at a further distance from the pressure sensor module than the recessed portion; and
each of the grooves longitudinally extends from a first one of the flat lateral external faces to a second one of the flat lateral external faces, upper and lower edges of each of the two flat lateral external faces thereby including respective indents.

Assignees

• Bosch Gmbh Robert

Inventors

• Woersinger Juergen
• Borras Marius

Classifications

• G01L19/0609

  Pressure pulsation damping arrangements · CPC title

• G01L19/0038 Primary

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

• G01L19/147 Primary

  Details about the mounting of the sensor to support or covering means · CPC title