Sensing element seal for a gas sensor
AssigneeRobert Bosch GmbH
InventorsHelmut Weyl, Johann Wehrmann
Life of this patent
Estimating the term…
Abstract
A sensor, in particular for determining the oxygen content in exhaust gases of internal combustion engines, is provided. The sensor includes a sensing element arranged in a housing having a reference gas space-side housing part, and a sensing element seal which hermetically separates a reference gas space from a measured gas space. Provided inside the reference gas space-side housing part is a sleeve, enclosing the sensor element on a longitudinal segment, which forms a receptacle for the sensing element seal.
Claims17
A sensor for determining oxygen content in exhaust gases of an internal combustion engine, comprising:
- a metal housing including a reference gas space-side housing part, the reference gas space-side housing part substantially surrounding a reference gas space;
- a measured gas-side end segment arranged with respect to a measured gas space;
- a sensing element seal positioned between the reference gas space and the measured gas space and hermetically separating the reference gas space from the measured gas space;
- a sensing element arranged in the metal housing;
- and
- a sleeve arranged inside the reference gas space-side housing part and enclosing the sensor element on a longitudinal sensor, the sleeve forming a receptacle for the sensing element seal.
A sensor for determining oxygen content in exhaust gases of an internal combustion engine, comprising:
- a metal housing including a reference gas space-side a housing part, the reference gas space-side housing part substantially surrounding a reference gas space;
- a measured gas-side end segment arranged with respect to a measured gas space;
- a sensing element seal positioned between the reference gas space and the measured gas space and hermetically separating the reference gas space from the measured gas space;
- a sensing element arranged in the metal housing;
- a sleeve arranged inside the reference gas space-side housing part and enclosing the sensor element on a longitudinal sensor;
- and
- a receptacle configured to receive the sensing seal element, the sleeve and the receptacle together being a one-piece part.
Dependencies are inferred from the claim text.