Robert Boschgmbh

Robert Bosh Gmbh

Helmut Weyl

Karl-Hermann Friese

Hans-Martin Wiedenmann

Leo Steinke

Bernhard Wild

Juergen Wilde

Peter Dettling

Anton Hans

Heinz Geier

Romuald Fries

Andreas Pesch

Rainer Maier

Kurt Bayha

Siegfried Nees

Thomas Egner

Claudio De La Prieta

Hans-Joerg Renz

Uwe Glanz

Thomas Schulte

Petra Kuschel

Markus Siebert

Andreas Hachtel

Leonore Schwegler

Michael Kupzig

Rainer Noack

Rainer Mueller

Udo Jauernig

Werner Wieland

Wolfgang Heinemann

Michael Liebler

Bettina Schneider

Ernst Linder

Helmut Denz

Werner Herden

Lothar Diehl

Helmut Maurer

Juergen Raimann

Werner Grunwald

Jens Schneider

Pascal Woerner

Martin Weinrotter

Lothar Raff

Joerg Engelhardt

Thomas Wahl

Johann Wehrmann

Gerhard Schneider

Detlef Heimann

Thomas Frey

Frank Meier

Karl-Heinz Nuebel

Lothar Weber

Dittmar Klett

Theodor Graser

Stefan Henneck

Craig Magera

Hannes Pflug

Matthias Entenmann

Bodo Ziegler

Bastian Buchholz

Clemens Simon

Stefan Heinzelmann

Franz Wetzl

Hermann Fischer

John Day

Gunther Kauhl

Norman Hahn

Manfred Dreyer

James Richard Waldrop

Karl-Heinz Effenberger

Hans-Ulrich Gruber

Peter Jansing

Gunther Knoll

Lars Berger

Juergen Karle

Frank Pelz

Wolf-Dieter Hacker

Jens Glauner

Gunter Knoll

Herbert Csanitz

Joachim Burkhardt

Dirk Bluemmel

Damien Barnes

Marco Gueth

Mike McCormick

An ignition laser, includes a laser-active solid-state body, a housing and a combustion chamber window, the housing having an inner sleeve and an outer sleeve. An insert is provided between the inner sleeve and the outer sleeve, the insert and the combustion chamber window being joined sealingly and integrally.

Ignition laser

A gas sensor is for determining at least one physical quantity of a gas, e.g., an exhaust gas of an internal combustion engine, the gas sensor having a sensor element that is fixed in a housing of the gas sensor by a seal assembly. The seal assembly includes a sealing element, which has a ceramic and/or a metallic material. After the heat treatment, the sealing element has a maximum decrease in volume of 5 percent, or an increase in volume, based on the volume of the sealing element prior to the heat treatment.

Gas sensor

A sensor is provided, in particular a gas sensor for determining the concentration of a gas component in a measuring gas, which has a sensor element that projects from a housing by a measuring-gas-side end section exposed to the measuring gas, and a sheath tube having gas passageways, which is placed over the measuring-gas-side end section and affixed on the housing. To prevent condensation of water vapor contained in the measuring gas in the measuring space enclosed by the housing and the sheath tube, and thus the production of water droplets that reach the hot sensor element, sheath tube and/or sensor element are/is thermally decoupled from the housing. The thermal decoupling is produced using, for instance, a flange sleeve made of a material having poor thermal conductivity, which separates the sheath tube from the housing by a flange and, via a sleeve section, is inserted in the space between the housing and the measuring-gas-side end section of the sensor element.

Gas sensor with sheath tube wherein the sheath tube or the sensor element is thermally decoupled from the sensor housing

A sensor, in particular a gas sensor for determining a physical characteristic of a measuring gas, in particular the temperature of the concentration of a gas component, in particular in the exhaust gas of an internal combustion engine, includes a sensor element which protrudes with a gas-side end section from a sensor housing and having a double protecting tube, which encloses the gas-side end section, and has an outer tube and an inner tube. For improved protection of the sensor element against thermal shock, a reduction in the heating power for the sensor element, and sufficiently high dynamics of the sensor, a cup-shaped central protecting tube is placed over the gas-side end section, the central protecting tube being provided with gas passage apertures in the tube casing, the gas passage apertures being positioned offset to the tube bottom with respect to the gas passage apertures present in the inner tube.

Sensor

A gas sensor, whose purpose is to determine a physical property of a measuring gas, e.g., to determine the concentration of a gas component or the temperature of an exhaust gas. The gas sensor includes a sensor element arranged in a metal housing which is sealed by at least one sealing element arranged in a metal receptacle. The metal receptacle is affixed to the housing. The sealing element surrounds the sensor element in a centered position along its longitudinal extension L or on its half facing the measuring gas.

Gas sensor and method for production thereof

A sensor for determining a physical property such as the concentration of a gas component or the temperature of a measuring gas, e.g., the exhaust gas of internal combustion engines, has a sensor element which is secured in a housing and is surrounded at an end section on the measuring gas side by a protective tube and surrounded at an end section on the connection side by a protective sleeve, and also has a radially projecting flange for securing the sensor on a sealing seat formed on a measuring gas duct. To reduce manufacturing costs, the flange is molded onto the protective tube as one piece. The protective tube is manufactured as a deep-drawn part, and a trimming edge remaining after deep drawing on the end side is used as a securing flange.

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.

A detecting element is described, in particular a gas sensor for detecting the concentration of a gas component in a measuring gas, including a sensor element which is exposable to the measuring gas and has a connecting end section which is contacted by connecting cables and is exposed to a reference gas atmosphere. The end section is accommodated in a protective sleeve having a radial opening over which a gas-permeable diaphragm covering the at least one radial opening is provided, the diaphragm, in turn, being engaged by a clamping sleeve having at least one radial opening. To avoid the axial penetration of liquids between the clamping sleeve and the diaphragm, which would cause the detecting element to malfunction, the clamping sleeve is caulked axially above and below the radial openings. Both caulking zones are designed in such a way that the diaphragm is compressed with increasing force from the inner caulking edges facing each other to the outer caulking edges facing away from each other.

Detecting element for determining the concentration of a gas component in a measuring gas, and method for manufacturing the detecting element

Electrical connecting lines of a sensor element are anchored by friction locking, specifically using an annularly closed spring element which clamps the connecting lines against contact surfaces on the sensor element using pressure bodies.

A sensing element for determining a physical property of a gas mixture, in particular the exhaust gas of internal combustion engines, includes a sensor element, arranged in a housing and connected to at least one electrical cable, as well as a molded piece, which seals the housing and is made of an elastically deformable material, which encloses the at least one cable in a gas-tight manner by radial compression. To ensure the gas-tightness of the cable feed-through also under a higher temperature load, which results in decreased elasticity of the molded piece, a spring element is arranged inside the molded piece, which is able to be tensioned by the radial compression and in the tensioned state generates a force component that acts on the cables in a radial direction.

Sensing element for determining a physical property of a gas mixture

An unheated planar sensor element for determining the concentration of a gas component in a gas mixture, in particular the oxygen concentration in the exhaust gas of an internal combustion engine, has a sensor foil made of a solid electrolyte with an outer electrode exposed to the measuring gas, and an inner electrode exposed to a reference gas, as well as a reference-gas channel, which is covered by the sensor foil on one side and accommodates the inner electrode. To produce a small-volume, cost-effective unheated sensor element for use in small combustion engines having low power output yet sufficiently satisfactory measuring accuracy, the reference-gas channel is sealed on the underside by an additional sensor foil made of a solid electrolyte, and covered by an inner electrode lying inside the reference-gas channel and an outer electrode exposed to the measuring gas.

Unheated planar sensor element for determining the concentration of a gas component in a gas mixture

The ceramic sensor body, held inside a housing by a sealing packing, is provided with a circumferential coating of an electrically insulating material in the region of the sealing packing, so that the sensor body remains potential-free with respect to the housing, even when a sealing packing is used that is made of a material having poor electrical insulating qualities. In this manner, a glass putty is used for the sealing packing, which, while having comparatively poor insulating characteristics, provides a good sealing effect at high loading capacity.

Gas sensor, in particular a lambda probe, and method for production thereof

A gas sensor is provided, for example, a sensor for determining the concentration or the temperature of a gas component. The gas sensor has a housing, in which a sensor element having at least one contact surface is arranged. The contact surface is conductively connected to a conductor element. The sensor element having the contact surface and the conductor element is arranged between two contact supports situated opposite one another. A spring element contacting the contact supports presses the conductor element onto the contact surface. Each of the contact supports, on sides facing one another, has at least one recess and at least one protuberance, the protuberance of one contact support engaging in the recess of the other contact support, and vice versa.

The measuring sensor, particularly a lambda probe, has a ceramic sensor member retained at a high temperature during measuring operation. It is shielded from water droplets, carried along in the gas to be analyzed, by a heated protective housing, permeable for the gas to be analyzed, by which water droplets carried along in the direction of the sensor member are evaporated before reaching the sensor member. In this way, the water droplets are unable to cause any shock-like temperature drops at spots on the surface of the sensor member or material flaking.

Measuring sensor for gases

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Wiesbaden, Germany

Helmut Weyl