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WO/2002/077586A1 |
The invention relates to a vibration pickup (1) for fixing to a vibration-producing component (18), comprising a piezoelectric element (4) which is arranged in an insulating housing (2). Said vibration pickup (1) is arranged in such a wa...
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WO/2002/066282A2 |
The invention relates to a device for receiving a force applied to a seat, particularly a vehicle seat. Said device comprises at least one spring element (5) for elastically positioning the seat in such a way that the seat support compon...
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WO/2002/066809A2 |
The sensor comprises an element (1) made of a material having pronounced magnetoelastic properties. The element (1) is connected to the injection line (2) in a non-positive manner and surrounds the injection line (2). The sensor also has...
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WO/2002/044680A1 |
A charge amplifier which can be operated at a low cost to convert charges generated from a piezoelectric pressure sensor having one earthed end into a voltage signal. In the charge amplifier (1), an operational amplifier (5) has a plus s...
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WO/2002/044681A1 |
A pressure sensor unit (1) comprising a pressure sensor element (3) held by means of an inner tubular member (6) and an outer tubular member (5) in which the rear end of at least one of the inner tubular member (6) and the outer tubular ...
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WO/2002/044542A1 |
An exhaust pressure sensing system and method for an internal combustion engine. The system includes a pressure sensor (96) positioned to sense exhaust pressure of an internal combustion engine. An attenuator (92) reduces the relatively ...
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WO/2002/034551A1 |
The invention concerns a device for detecting substantially sudden and significant loss of pressure in a tyre comprising: a pressure variation sensor (2) adapted to respond in a safety time interval to a substantially significant and rap...
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WO/2002/023145A2 |
The present invention provides a sensor that can be operated at high temperatures. The sensor comprises a first electrode, a second electrode, and an aluminum nitride film which lies between the first and second electrode. The sensor can...
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WO/2002/021095A1 |
The invention relates to a vibration pickup (1) for indirectly or directly fastening to a vibrating component part such as an engine block. The vibration pickup comprises a housing (10) and a pressure sleeve (2) that is provided with a c...
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WO/2002/021092A1 |
The invention relates to a combined sensor for recording vibrations and for determining the temperature of a component (20), in which the sensor is fixed. Said sensor comprises a vibration pick-up and a temperature measuring device (28),...
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WO/2002/020313A1 |
The invention relates to a device for providing a signal in response to a change of the ambient pressure, comprising a pressure sensor (S) for providing a pressure signal (DS) depending on an ambient pressure (p), and a signal processing...
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WO/2002/021094A1 |
The invention relates to a vibration pickup (1), which can be indirectly or directly fastened to a vibrating component part. The vibration pickup (1) comprises a pickup element (3) with a recess (4) and comprises a solid piezoelectric el...
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WO/2002/021093A1 |
The invention relates to a vibration sensor for fixing directly or indirectly to a vibrating component. Said sensor comprises a housing, a pressure casing (3) containing a central bore (14) and a piezoelectric disk (4), positioned betwee...
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WO/2002/016745A2 |
A method and corresponding device for knock recognition in an internal combustion engine with at least one cylinder are disclosed, whereby signals are recorded within a given time window, which occur as a result of a combustion in the at...
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WO/2002/014822A1 |
Devices and methods for knock recognition and knock regulation are disclosed, whereby the knock recognition circuitry, along with the usual components, comprises a filter (12) with switchable filter characteristics. Switching the filter ...
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WO/2002/008714A1 |
The invention relates to a spark plug (10) for receiving a pressure sensor (20). A connection channel (62) for guiding a connection line of the sensor (20) runs in a housing (28) and in a central section (32) of the insulator core (30) o...
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WO/2002/004800A1 |
The invention relates to a method and a device for error detection or diagnosis, for use in a multicylinder internal combustion engine with a knock sensor. An actual reference value produced from a sensor signal is compared with predeter...
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WO/2001/083968A1 |
The invention relates to a method for scanning a sensor that senses a pressure signal and the pressure signals of a pressure-signal based cylinder filling calculation for the purpose of calculating the refilling of the cylinders of an in...
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WO/2001/050098A1 |
Vibrations and/or rotations of a machine are sensed, preferably using one or more accelerometers, whose output is sampled by an analog-to-digital converter (ADC) and forms an input signal to a processing system. An alarm that warns of ex...
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WO/2001/048364A1 |
An intake pressure sensor for sensing the intake pressure in an intake pipe (11) used as information for controlling the operation of an engine comprises an intake pressure sensor (12) for sensing the absolute intake pressure, a referenc...
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WO/2001/044772A1 |
The invention relates to a vibration pickup comprising a clamping sleeve. The clamping sleeve (2) can be placed under pressure and mounted on a component that induces vibrations. In order to detect a vibration signal, for example, in a k...
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WO/2001/044771A1 |
The invention relates to a vibration pickup comprising a pressure sleeve. The pressure sleeve (2; 22), with a base surface (20), can be placed under pressure on a component that induces vibrations. Before assembly, the base surface (20) ...
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WO/2001/044756A2 |
A vibration sensor with a pressure housing is disclosed, in which the pressure housing (2) may be mounted under pressure, on a vibration inducing component. A sensor arrangement in the form of a piezo-ceramic disc (7) is fixed to the ext...
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WO/2001/036930A1 |
A pressure detection apparatus (10) uses an absolute pressure measurement system, in which a pressure detector (22) is provided in a channel (16) through which compressed fluid, such as compressed air, is supplied from an air supply (12)...
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WO/2001/023859A1 |
Disclosed is a method for detecting knocking in an internal combustion engine. According to the inventive method, the output signal of at least one knocking sensor associated with said internal combustion engine is evaluated with the aid...
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WO/2001/013084A1 |
The invention concerns a heat engine spark plug, comprising a metal shell (2) with an externally threaded end part to be screwed in a cylinder head tapped hole, the shell bearing internally an insulating body (4) traversed by a central e...
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WO/2001/013085A1 |
The invention relates to an induction pipe pressure sensor, comprising two separate chambers (3, 5), in each of which a pressure detector (13, 8) is located. The invention hereby constitutes a simple component which can detect both the a...
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WO/2001/007884A1 |
The invention relates to a pressure sensor for an internal combustion engine, comprising an induction pipe which has a sensor surface (11') and a sensor duct (14) which connects the sensor surface (11') to the interior of the induction p...
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WO/2000/061932A1 |
The invention relates to a method for determining the combustion characteristics of an internal combustion engine by means of an ionic current probe that is located in the combustion chamber. According to the inventive method, one ionic ...
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WO/2000/026881A1 |
A rate of rise detector assembly (16) for use with explosion suppression equipment (14, 18). The detector assembly includes a pressure sensor or transducer (20) and a controller (22). The pressure transducer (20) continuously measures th...
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WO/2000/022288A1 |
Disclosed is a device (1) for monitoring the combustion process in internal combustion engines, whereby it is possible to carry out direct monitoring of individual combustion processes, especially individual combustion chambers. Said mon...
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WO/2000/020833A1 |
The invention relates to a method and an arrangement for evaluating combustion processes in an internal combustion engine, using a model which takes the time-variant transmission between pressure and structure-borne noise as a basis for ...
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WO/2000/011376A2 |
The control device (1) has a control circuit and a pressure sensor (14) connected thereto, whereby said pressure sensor measures hydraulic pressure in the gearbox or the induction-pipe vacuum of the engine. A metal support plate (9) for ...
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WO/2000/006926A1 |
The inventive control device (6) comprises a control circuit (13) and a pressure sensor (12) for measuring the hydraulic pressure in the transmission which are accommodated in a common housing (8). The housing (8) has a metallic base pla...
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WO/2000/000800A1 |
A spark plug is installed in an internal combustion engine to monitor engine performance. The spark plug includes a core having a central longitudinal axis and defining a first bore extending along the central longitudinal axis. A layer ...
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WO/1999/067528A1 |
A fuel injection valve and pressure sensor combination (1) for fuel injection systems that inject fuel directly into the combustion chamber (2) of an internal combustion engine and measure the pressure in the combustion chamber (2) compr...
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WO/1999/066299A1 |
The present invention pertains to the field pressure-measuring techniques using optical systems, and may be used in various technical fields, mainly in medicine. The pressure sensor of the present invention comprises a Fabry-Pérot reson...
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WO/1999/064834A1 |
A spark plug is installed in an internal combustion engine to monitor engine performance. The spark plug includes an outer shell having a central longitudinal axis and defining a first bore extending along the central longitudinal axis. ...
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WO/1999/058945A1 |
Pressure sensor for measurement of gas pressure in a cylinder of a combustion engine, comprising a tube (6) shaped in cross section as an hourglass. In the axial direction the tube consists in part of a section connected to the cylinder ...
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WO/1999/051875A1 |
The invention relates to a device for suppressing engine knocking in internal combustion engines, whereby the ignition point is adjusted when engine knocking occurs and said adjustment is only activated when given temperature conditions ...
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WO/1999/046571A1 |
The invention relates to a method for evaluating the knock signals of an internal combustion engine, comprising at least one knock sensor (1). The knock part (UK) of the output signal (U1) is filtered out of the knock signal (U1) by corr...
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WO/1999/044069A1 |
The invention concerns a knock sensor (1) comprising a base (10) consisting of a flange (12) and a cylindrical sleeve (11) threaded at the end opposite to the flange, a stack (20) sensitive to accelerations comprising at least a piezoele...
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WO/1999/031476A2 |
The invention relates to a method for monitoring and error recognition for use in a device for knock detection. According to said method, two different diagnostic functions are carried out alternately. If one of the diagnostic functions ...
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WO/1999/015872A2 |
The invention relates to a method for evaluating the march of pressure in the combustion chamber of an internal combustion engine, wherein the output signal of at least one cylinder pressure sensor and a crankshaft angle sensor is evalua...
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WO/1999/015873A1 |
In a process for determining relevant variables which represent the cylinder pressure in the cylinders of an internal combustion engine, the relevant variables are derived from another measured variable and the other measured variable is...
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WO/1999/014571A1 |
A load sensor (10) for measuring engine cylinder pressure and vehicle seat occupant weight in a nonintrusive manner that is easily adaptable to existing vehicle components and occupancy support structures. The sensor of the invention pro...
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WO/1999/013308A1 |
A method of detecting and controlling detonation, including the steps of: generating (10) a vibration signal (D) proportional to the intensity of vibration on the crankcase; wide-band-filtering (11) the vibration signal (D) to generate a...
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WO/1999/010652A1 |
The invention relates to a knock adjustment method for an internal combustion engine, whereby knock values (KW) are formed from signals provided by at least one knock sensor and knock thresholds (KS) formed from said values (KW) are comp...
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WO/1999/005477A1 |
The invention relates to a device for detecting the pressure and the temperature in the induction pipe of an internal combustion engine. A temperature sensor and a pressure sensor are fitted in an common housing. The pressure sensor is f...
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WO/1999/005494A1 |
The invention provides for a method and device for determining a gas pressure and temperature in a hollow space, including a fuel/air mix in an internal combustion engine combustion chamber. According to the invention, pressure and tempe...
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