Robert Boschgmbh

Kistler Holding Ag

Steffen Schott

Christoph Kern

Pavlo Saltikov

Michael Kleindl

Reiko Zach

Peter Wolfer

Claudio Cavalloni

Michael Mueller

Ewgenij Landes

Reinhold Hess

Andrea Bertola

Christian Doering

Wolfgang Dressler

Markus Ledermann

Juergen Hanneke

Andreas Reissner

Ruth Hoffmann

Horst Boeder

Albrecht Geissinger

Christoph Haluschka

Christine Engel

Thomas Ludwig

Juergen Krueger

Laurent Jeannel

Pia Mondal

Ewgenji Landes

Vlatko Babic

Michael Schuettoff

Peter Sossinka

Romualdas Zaliukas

Holger Dietzhausen

Jürgen Krüger

Jan Semet

Michael MÜLLER

Michel Beck

The invention relates to a liquid extraction module () for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, having an insert part () which is produced at least substantially from plastic and which has at least one extraction opening () and at least one plug connector () for the electrical contacting of an electrical consumer () of the liquid extraction module (). It is provided that a housing () of the plug connector () is formed separately and has at least one encapsulated undercut () for fastening to the insert part ().

Liquid extraction module, liquid tank

The invention relates to a tank insert module () for extracting liquid from a vehicle tank, comprising a basic body () composed of a plastic, on which basic body are arranged a liquid extraction device (), which comprises an extraction opening () which can be assigned to the tank interior space, and at least one electric heating element (), wherein the electric heating element () comprises a heating body () with an extrusion-coated plastic encapsulation (). It is provided here that the plastic encapsulation () has a plastic which can be welded to the basic body, in particular high-density polyethylene, and/or the same plastic as the basic body (), and also at least one filler material with high thermal conductivity, and is welded to the basic body () at at least one contact point (). The invention also relates to a liquid tank for vehicles.

Tank insert module, liquid tank

The invention relates to a liquid extraction module () for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, comprising a basic body () which can be arranged in and/or on the vehicle tank and which bears a liquid extraction device () with an extraction orifice () that can be assigned to the tank interior, and at least one electric heating element (). According to the invention, at least one heat-conducting element () is provided, said element having at least one first portion () assigned to the heating element () and one second portion () assigned to the extraction orifice (), in order to transport the heat from the heating element () to the extraction orifice (). The invention further relates to a liquid tank for a vehicle.

A pressure measuring device suitable for disposition in a chamber of an internal combustion engine. The pressure measuring device has a housing, a force transmitting element that is effectively connected to a pressure sensor, and a sensor cage that surrounds the pressure sensor. The sensor cage is connected to the housing by a circumferential weld seam only at one connection segment of the housing. In this way, it is possible to achieve a defined pre-tensioning of a metal diaphragm that is connected on the one hand to the sensor cage and on the other hand to the force transmitting element.

Pressure measuring device

A glow plug for a combustion chamber of a self-igniting internal combustion engine has a ceramic heating element designed as a sheathed-element glow plug, which is surrounded by a supporting tube. The ceramic heating element is sealed with respect to the combustion chamber of the internal combustion engine by a seal in the supporting tube. The seal is designed as a sealing element made of an FeNi alloy having an Invar effect.

Seal for a glow plug

The invention relates to a component for installation in force or pressure sensors, in particular in a glow plug. The component comprises a disc-type or punched-disc type measuring element consisting of a piezoelectric material, punched-disc type or disc-type electrodes that lie on either side of the measuring element. The electrodes have contact points for contacting conductors. The component comprises in addition a respective transmission body or several transmission bodies that are located outside the electrodes, on either side of the latter. The measuring element, electrodes and transmission bodies are held together mechanically by an external, electrically insulating film.

Component for piezoelectric force or pressure sensors, held together by an electrically insulating film

A pressure-measuring device is situated in a chamber of an internal combustion engine. The pressure-measuring device has a housing, a force-transmitting element that protrudes partly from the housing at a chamber-side opening of the housing, and a pressure sensor that is situated in an interior space of the housing. The pressure sensor stands in effective connection to the force-transmitting element. In addition, a diaphragm is provided that seals the interior space of the housing, in which the pressure sensor is situated, against the chamber-side opening. The diaphragm, which is preferably fashioned as a metal diaphragm, has a force-transmitting segment that is oriented in an axial direction of the force-transmitting element. Moreover, the pressure sensor stands in effective connection with the force-transmitting element via the force-transmitting segment of the diaphragm. In this way, there takes place at least a partial compensation of thermally caused changes in length of the diaphragm, caused for example by hot combustion gases, and resulting in periodic impairments of the pressure measurement made by the pressure sensor.

Pressure-measuring device

A sheathed-element glow plug is used to be situated in a chamber in an internal combustion engine. The sheathed-element glow plug has a housing, a pin-shaped heating element, which extends partially from the housing and a pressure sensor which is situated in an inner chamber of the housing. A prestressing sleeve is provided, in this context, which applies a prestressing to the pressure sensor.

Sheathed-element glow plug

A pencil-type glow plug for a self-igniting internal combustion engine is described. The pencil-type glow plug includes a plug body in which a combustion chamber pressure sensor is integrated, and a bar-shaped heating element that protrudes out from the plug body at one end, into the combustion chamber of the internal combustion engine. A force-measuring element of the combustion chamber pressure sensor is accommodated behind the heating element, which moves axially under the influence of force. The force-measuring element is sealed against combustion chamber gases by a steel diaphragm made of a stainless precipitation-hardened maraging steel.

Pencil-type glow plug having an integrated combustion chamber pressure sensor

The invention relates to a pressure sensor (), comprising a housing (), a housing element () which may be exposed to a pressure chamber (), mounted on the housing () by means of a metallic membrane () and a measuring cell () which can indirectly measure a pressure acting on the housing element () and transmitted to the measuring cell () as a force resulting therefrom. According to the invention, said pressure sensor () comprises a housing element () embodied as a pin and projects out of the housing (). The advantage of such an arrangement is only a small drilling to a pressure chamber () need be provided, in order to carry out a pressure measurement. The pin () need only be so long that the front end thereof, in the assembled state, approximately reaches the wall () of the pressure chamber ().

Pressure sensor

A pin heater in a sheathed-element glow plug and a sheathed-element glow plug for internal combustion engines, which have improved electrical and mechanical properties, are described. The pin heater has at least one essentially internal insulating layer and one essentially external first conductive layer, both layers including ceramic composite structures. The pin heater includes a second conductive layer, which also includes a ceramic composite structure. The second conductive layer is bonded to the first conductive layer in the region of a combustion chamber side tip of the pin heater. The second conductive layer runs inside the insulating layer.

Plug heater for a pencil-type glow plug and corresponding glow plug

A ceramic sheathed-element glow plug includes a ceramic glow element made of an electrically conductive layer and an electrically insulating layer, in which the conductive layer is made of supply layers and a heating layer. The higher specific electrical resistance of the heating layer allows the temperature of the heating layer and of the combustion chamber to be determined, and the electrical contact between a connecting element and the glow element is established by a contacting element that is composed of a pellet made of an electrically conductive powder.

Ceramic sheathed-element glow plug with electrically conductive powder pellet contacting element and method for making

A sheathed-element glow plug to be mounted in a combustion chamber is proposed, a rod-shaped heating element being situated in a concentric bore hole of the housing. The heating element has a first current-carrying layer, a second current-carrying layer, and an insulating layer, the insulating layer separating the first current-carrying layer and the second current-carrying layer. The first current-carrying layer and the second current-carrying layer being connected at the end of the heating element on the combustion chamber side by a conducting-layer crosspiece. The first current-carrying layer and the second current-carrying layer are different lengths, the cross section of the first current-carrying layer in a first section at the end of the heating element away from the combustion chamber being greater than the cross section of its remaining length, and the second current-carrying layer not extending into the first section.

Growing community of inventors

Schwieberdingen, Germany

Steffen Schott