Borgwarner Beru Systems Gmbh

Continental Automotive France

Federal-mogul Ignition Srl

Borgwarner Ludwigsburg Gmbh

Beru Ag

Siemens Vdo Automotive Corporation

Hilite Germany Gmbh

Diehl Ako Stiftung & Co. Kg

Bernd Last

Alain Ramond

Cyrille Patri

John Antony Burrows

Martin Eller

Martin Weinmann

Sandro Goretti

Christian Pottiez

Michel Boucard

Hans Houben

Martin Sackmann

Frank Pechhold

Yue Cheng

Georg Rixecker

Olaf Toedter

Michael Haussner

Kenneth J Parker

Jochen Hammer

Nicolaus Wulff

Steffen Geiger

Arno Marto

Udo Diederichs

Michael Eberhardt

Volker Brichzin

Melissa Koenig

Dirk Von Hacht

Ralf Ehlert

Karsten Volland

Sebastian Tinius

Marc Rottner

Matthew Bradfield

Andreas Ruthmann

Ramita Suteekarn

Gerald Fromm

Erich Berdel

Harald Reustlen

Gordon Neudörfer

Melissa Mei König

Kenneth Parker

Nikolaus Wulff

An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.

Oscillating-motor camshaft adjuster having a hydraulic valve

A method for controlling the surface temperature of any glow plug in an internal combustion engine. A glow plug control device carries out an initialization at the installed and connected glow plug to adapt the temperature model to the behavior of the connected glow plug before the engine is started. Upon initialization, the glow plug is acted on by at least two different voltages and the resistances of the glow plug with these voltages are measured. A resistance gradient is calculated therefrom and the temperature model is adapted to the behavior of the connected glow plug. During the control process during operation of the engine, the momentary surface temperature of the glow plug is estimated by a model temperature, which is established using the temperature model. The effective voltage acting on the glow plug is changed in accordance with the deviation of the model temperature from a target temperature.

Method for closed-loop control of the temperature of a glow plug

The invention relates to a pressure gauge for measuring the pressure in a combustion chamber of an engine, comprising a housing, a tappet, which is movable in the housing in an axial direction under the action of combustion chamber pressure, a sensor for detecting an axial displacement of the tappet, and a force transmitter, in order to transmit a force loading the tappet to the sensor. In accordance with the invention, the force transmitter has at least one damping section for damping flexural vibrations, at which its flexural rigidity is reduced.

Pressure gauge

A glow plug includes a ceramic glow pencil, a protective sleeve from which the glow pencil protrudes, and a housing from which the protective sleeve protrudes. The protective sleeve is fastened to the glow pencil via a holding element which is disposed outside of the housing and is soldered to the glow pencil. The ceramic glow pencil includes a substantially cylindrical inner conductor disposed along a length of a distal end of the ceramic glow pencil, an insulating layer disposed over the inner conductor, and an outer conductive layer disposed over the insulating layer, wherein the outer conductive layer is connected to the inner conductor at the distal end of the ceramic glow pencil.

Glow plug

A pressure measuring device includes a housing and a rod which is movable in the axial direction in the housing under the effect of combustion chamber pressure where the rod protrudes from the housing. A sensor measure combustion chamber pressure acting on the rod, and a first diaphragm is attached to the housing through which the rod extends. A second diaphragm is attached to the housing through with the rod extends between the sensor and the first diaphragm. The second diaphragm generates a return force when the rod undergoes axial displacement caused by pressure on the rod.

Dual diaphragm combustion pressure measuring device

The invention relates to a method for controlling a glow plug to a target value of the surface temperature while the engine is running. An effective voltage is generated by pulse width modulation of a vehicle electrical system voltage. This effective voltage is applied to the glow plug. The electric resistance of the glow plug is measured and compared to a resistance value expected for the target value of the surface temperature. The effective voltage is varied as a function of the deviation of the measured value of the electric resistance from the expected value of the electric resistance. A pressure sensor of the glow plug is used to measure the combustion chamber pressure. The resistance value expected for the target value of the surface temperature is determined as a function of the combustion chamber pressure.

Method for controlling a glow plug

Glow plug, particularly for operation in a combustion engine, comprising at least one heating rod () and at least one body () and at least one annular gap () between the heating rod () and the body () and at least one chamber () primarily arranged between the heating rod () and the body ().

Glow plug having coking-optimized design

Device for creating a temperature gradient, especially in gaseous media, comprising at least one ohmic resistor and at least two non-conducting insulators and at least one casing and at least one elastic element positioned between the non-conducting insulator and the casing.

Device for producing a temperature gradient

The invention relates to a device and a method for determining combustion chamber pressure, having at least one glow filament, at least one measuring element, at least two spring membranes, and at least one tubular base.

Device and method for determining combustion chamber pressure

A pressure pickup heating bar, in particular for a pressure pickup glow plug, having an electrical heating element () and a pressure sensor () onto which the pressure present at the heating bar () is transmitted. The heating bar has a support tube () which encompasses the heating element () on the outside with an axial pretension. A pressure sensor () is arranged between the heating element () and the support tube () and is subjected to pressure that is present on the heating bar.

Pressure pickup heating bar, in particular for a pressure pickup glow plug

A glow plug including a tubular body with elements for fixing it into a bore, an intermediate tubular part arranged inside the tubular body, a finger disposed inside the intermediate tubular part with a heating electrode, and a pressure sensor connected to the intermediate tubular part, wherein a face of the sensor facing the finger is pressed thereto.

Glow plug provided with a pressure sensor

A glow plug includes a glow plug body (), a pressure sensor arranged inside the glow plug body (), a threaded portion () on the outside of the glow plug body () and gripping elements (), generally of cylindrical form with a hexagonal section, enabling the body () to be gripped and screwed into a corresponding tapping, the gripping elements () being made from synthetic material.

Head of a glow plug provided with a pressure sensor

This body () has on its outer surface both a screw thread () adapted for fixing the body () into a corresponding tapping in an engine (), as well as a gripping zone (), generally of cylindrical form with a hexagonal section, enabling gripping of the body () for screwing the glow plug () into the corresponding tapping. The outer diameter of the portion of the body between the thread () and the gripping zone () is throughout its entire height of a diameter at least equal to the outer diameter of the threaded portion (). Application to internal combustion engines, in particular Diesel type engines.

Body of a glow plug provided with a pressure sensor

A glow plug (), includes a pressure sensor (), suitable for measuring the internal pressure of a motor cylinder in which the plug () is housed, a body () to be secured to the motor and a finger () in which a heater electrode is housed. The sensor () is firmly secured to the body () by the upper face thereof and rests on the finger (), so that the pressure exerted on the finger () presses the sensor against the body ().

Glow plug comprising a pressure sensor and motor equipped therewith

The invention relates to a device which is used as a force-transmitting device (') for a pressure sensor () associated with a glow plug in an internal combustion engine and is embodied in the form of a tubular piece whose cross-section is substantially annular. The inventive device comprises an area () on which the external diameter thereof increases towards one end thereof. The front surface of the device corresponding to said flared end is embodied in the form of a bearing face receiving the piezo-electric pressure sensor. A glow plug integrating said force-transmitting device is also disclosed.

Device for acting upon a pressure sensor mounted on a flow plug

Growing community of inventors

Reutlingen, Germany

Bernd Last