Sensor
AssigneeRobert Bosch GmbH
InventorsHelmut Weyl, Frank Meier, Peter Dettling, Bettina Schneider
Life of this patent
Estimating the term…
Abstract
A sensor for measuring a physical property of a measuring gas, in particular the oxygen concentration or the temperature in the exhaust gas of an internal combustion engine in a motor vehicle, has a housing, a measuring element whose end section protrudes from the housing, a connector plug mounted on the end section, and a housing shell covering the end section and connector plug with a radial clearance, one shell end of the housing shell being attached to the housing and the other shell end being sealed. To prevent electromechanical breakage in the sensor in the event of extreme vibration stresses or accelerations of the vehicle, the free space within the housing shell is completely filled with a non-conductive granulate.
Claims11
A sensor for measuring a physical property of an oxygen concentration or a temperature in an exhaust gas of an internal combustion engine in a motor vehicle, comprising:
- a housing;
- a measuring element accommodated in the housing, the measuring element having an end section that protrudes from the housing;
- a connector plug mounted on the end section;
- and
- a housing shell which covers the end section and the connector plug with a radial clearance, the housing shell having a first shell end that is attached to the housing, and a second shell end that is sealed;
- wherein a free space present inside the housing shell is completely filled with a material;
- wherein the material is filled in as a bulk material;
- wherein the material is a non-conductive, inorganic material in the form of a granulate;
- and
- wherein the material is one of quartz sand or granulated corundum.
A sensor for measuring a physical property of an oxygen concentration or a temperature in an exhaust gas of an internal combustion engine in a motor vehicle, comprising:
- a housing;
- a measuring element accommodated in the housing, the measuring element having an end section that protrudes from the housing;
- a connector plug mounted on the end section;
- and
- a housing shell which covers the end section and the connector plug with a radial clearance, the housing shell having a first shell end that is attached to the housing, and a second shell end that is sealed;
- wherein a free space present inside the housing shell is completely filled with a material;
- and
- wherein the material is a temperature-resistant, porous foam.
Dependencies are inferred from the claim text.