The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
Nov. 15, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Johannes Weber, Stuttgart, DE;
Benjamin Sillmann, Moehringen, DE;
Christoph Gmelin, Stuttgart, DE;
Christopher Holzknecht, Stuttgart, DE;
Karel Vacha, Mirkovice, CZ;
Katerina Lieblova, Dolni Trebonin, CZ;
Milan Kotynek, Olesnik, CZ;
Rafael Gitzmann, Stuttgart, DE;
Sebastian Schulte Am Huelse, Stuttgart, DE;
Simon Rentschler, Schwaikheim, DE;
Stefan Buehler, Kappelrodeck, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An exhaust gas sensor for detecting a measurement gas component, having a ceramic sensor element fixed in a housing, and a double-walled protective pipe having outer and inner protective sleeves, the inner sleeve enclosing a gas chamber into which the sensor element extends with a segment at the measurement gas side, in the direction of a longitudinal axis of the sensor, and an annular chamber being formed between the outer and inner protective sleeves. The outer sleeve has a cladding surface having at least one opening configured as a swirling element, through which measurement gas can move into the annular chamber with rotation about a longitudinal axis of the sensor, and the inner sleeve has at least one opening that is adjusted and/or functionally optimized, as to a sensitive region of the sensor element, through which opening the measurement gas can move from the annular chamber into the gas chamber.