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WO/2008/071022A1 |
The invention relates to an adapter for pressure sensors for monitoring long-term cylinder pressures in internal combustion engines, said adapter comprising a housing 1 with a gas duct 2, a connection 3 to a cylinder cover of an internal...
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WO/2008/069734A1 |
The invention relates to milking machine testing. It is presumed that the milking machine includes at least two teat cups (101, 102, 103, 104) connected to a common volume (120) via a res pective milk hose (111, 112, 113, 114). A pulsati...
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WO/2008/068101A1 |
A pressure-measuring device (1) is used for arrangement in a chamber of an internal combustion engine. The pressure-measuring device (1) has a housing (3), a force transmission element (5) which partially projects from the housing (3) at...
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WO/2008/055377A2 |
The invention relates to a pressure sensor for measurements in hot, dynamic processes. Said pressure sensor comprises a cylindrical housing (1) in which a measuring element (2) is located, and a round or annular membrane (3) having at le...
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WO/2008/051108A1 |
The inventive device comprises electropneumatic pressure sensors, which are arranged in the cylinder of an engine and are connected with a pressure gauge and a valve by means of a common main, and a pressure recorder, wherein each electr...
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WO/2008/043594A2 |
The invention relates to a pressure gauge (1) for arranging in a chamber of an internal combustion engine. Said pressure gauge (1) comprises a housing (3), a force transmission element (6) which projects out of the housing (3), and a pre...
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WO/2008/024663A2 |
A method of statistically characterizing combustion knock events includes receiving signals from a sensing device such as an accelerometer, estimating at least one parameter of a probability distribution function based on the received si...
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WO/2008/017602A1 |
The present invention relates to a method and a device for determining a pressure in the combustion chamber of an internal combustion engine, particularly of a motor vehicle, comprising a fuel injection valve protruding into the combusti...
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WO/2008/012162A1 |
Disclosed is a dry front-flush pressure measuring sensor which can take reliable measurements within a great temperature range and comprises a process connection (1, 1a, 1b) that is made of stainless steel and is used for fastening the p...
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WO/2008/003846A1 |
This spark plug comprises: - a central electrode (2), - an insulating core (6) bearing the central electrode (2), - an external body (8) in which the insulating core (6) is mounted and which has a region (18) where the external body (8) ...
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WO/2008/001939A1 |
An engine ECU executes a program including the step of calculating a correlation coefficient K by dividing the sum SDS(I) of respective absolute values DS(I), which are each a difference between a magnitude in an engine vibration wavefor...
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WO/2007/142348A1 |
An engine ECU executes a program including the steps of: calculating a coefficient of correlation K in accordance with a result of comparing a waveform of a vibration of a frequency band including a resonance frequency of an engine with ...
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WO/2007/101426A1 |
The invention relates to a high temperature pressure sensor element (10; 20), in particular for jet engines, comprising a substrate (11) with an inner region (12) configured therein, a defomable membrane (13) which separates the inner re...
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WO/2007/096208A1 |
The invention relates to a pressure measuring device (1) suitable for arrangement in a chamber of an internal combustion engine. The pressure measuring device (1) comprises a housing (3), a force transmission element (5), cooperating wit...
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WO/2007/096205A1 |
The invention relates to a pressure gauge (1) that is designed to be located in a chamber of an internal combustion engine. The pressure gauge (1) has a housing (3), a force transmission element (5), which interacts with a pressure senso...
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WO/2007/080815A1 |
An engine ECU executes a program including the steps of: calculating (S200) an absolute value ΔS(I) of the deviation of the vibration waveform detected by a knock sensor and a knock waveform model from each other at each crank angle; wh...
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WO/2007/073959A1 |
The invention relates to a pencil-type glow plug (1) for arranging in an internal combustion engine chamber. Said pencil-type glow plug (1) comprises a housing (3), a bar-shaped heating element (2) and a pressure sensor (21). The bar-sha...
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WO/2007/073998A1 |
The invention relates to a pencil-type glow plug (1) for arranging in a chamber of an internal combustion engine. The pencil-type glow plug (1) comprises a housing (3), a bar-shaped heating element (2) which extends partially from the ho...
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WO/2007/070908A1 |
The invention relates to an apparatus for measuring the cylinder internal pressure of internal combustion engines and, in particular, of gas engines in this case, said apparatus having a first valve (5) which opens into the cylinder inte...
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WO/2007/068015A2 |
The invention relates to a device for measuring the internal cylinder pressure of internal combustion engines, especially gas engines. Said device comprises a first valve (5) that opens into the interior of the cylinder, a measuring cham...
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WO/2007/062470A1 |
A an engine management system includes a processor (8) in communication with a memory (10) that contains a program memory (28) containing instructions for the processor to implement a knock detection method. The knock detection method in...
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WO/2007/054407A1 |
The invention relates to a fuel injection system having a high pressure fuel source (5) and at least one injector (12) which has at least one injection opening (15) through which fuel can be injected into a combustion chamber of an inter...
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WO/2007/040447A1 |
This invention relates to a method for knock detection in a combustion engine, in which combustion is controlled by a control unit (2), which comprises the steps of, a) obtaining at least one sensor signal (4, 4') carrying information of...
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WO/2007/032259A1 |
Disclosed is a piezoelectric sensor (1) comprising a piezoelectric element (10) which receives a pressure at a first surface and generates electrical charges from the pressure. In this piezoelectric sensor (1), a space is formed in a reg...
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WO/2007/032244A1 |
In determining a knock of an engine (11), a vibration intensity is calculated by logarithm-transforming a peak value or an integral value of an output signal of a knock sensor (28). Further, a central value VMED of a vibration intensity ...
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WO/2007/030053A1 |
A device for measuring the pressure in a gas, wherein the device comprises: a framework (10), a channel extending through the framework, the channel comprising in the axial direction a introductory section including an opening for receiv...
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WO/2007/013795A1 |
An arrangement and method for providing compensation to a cyclical input signal is disclosed. The arrangement comprises a first detection unit (20) for detecting a first event in a cyclical output signal; a compensation signal generation...
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WO/2007/010958A1 |
A knock determining apparatus includes a sensor (28) which outputs a waveform signal corresponding to a knock state, and at least one of a first to a third knock determiner (27, 100, 200, 300) which determines a knock state based on a vi...
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WO/2007/004451A1 |
An engine ECU 200 includes a bandpass filter (1) (410), a bandpass filter (2) (420), and a bandpass filter (3) (430). The bandpass filter (1) (410) extracts only vibrations at a first frequency band A from the vibrations detected by a kn...
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WO/2007/004597A1 |
An engine ECU (200) includes a bandpass filter (1) (410) extracting only vibrations at a first frequency band A, a bandpass filter (2) (420) extracting only vibrations at a second frequency band B, a bandpass filter (3) (430) extracting ...
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WO/2007/001064A1 |
An engine ECU executes a program including the steps of: calculating a correlation coefficient K based on the result of comparing a vibration waveform of an engine and a knock waveform model stored previously; calculating a magnitude val...
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WO/2007/001040A1 |
An engine ECU executes a program including a step (S100) of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step (S106) of deciding a maximum value V(MAX) in frequency distribution of intensity val...
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WO/2006/134151A2 |
The invention concerns a sensor structure in particular for a harsh environment in a motor vehicle, characterized in that it comprises a sensor body (1) including at one end, an element (2) sensitive to the quantity to be measured in the...
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WO/2006/128755A1 |
The invention relates to a device for measuring the pressure in the combustion chamber (60) of an internal combustion engine, in the cylinder head (10) of which is accommodated at least one engine add-on part (20). Said engine add-on par...
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WO/2006/120049A1 |
A pencil type glow plug (110) for a self-igniting internal combustion engine and having an integrated combustion chamber pressure sensor is proposed for measuring pressures in the combustion chamber, in particular for an engine control s...
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WO/2006/118296A1 |
An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper cent...
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WO/2006/115300A1 |
An engine ECU executes a program including the steps of: setting a knock waveform model corresponding to engine speed sensed by a crank position sensor (S108); calculating knock intensity N based on the result of comparison between a det...
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WO/2006/110935A1 |
A plurality of exchangeable, different piezoelectric pressure sensors (4) comprise integrated SAW elements (60) as identification units whose identification data can be read by an interrogation unit (3) via a common connection cable (61)...
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WO/2006/108939A2 |
The invention concerns a glow plug comprising: a tubular body (2) having at one of its ends a plug head (10) as well as a zone for being fixed into a bore, an arm (4) mounted on the body (2) of the plug at the end opposite to the plug he...
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WO/2006/102753A1 |
A occlusion detector for a dual-port surgical tourniquet system comprises: a tourniquet cuff for encircling a patient's limb and including an inflatable portion that communicates pneumatically with a first cuff port and that communicates...
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WO/2006/099157A2 |
A system for, and a method of, obtaining, for analysis, from a subject internal combustion engine, real-time engine knock data involving assessing, as a positive indication of engine knock behavior, whether the energy-content value repre...
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WO/2006/089446A1 |
The invention relates to a component (2) for installation in force or pressure sensors (1), in particular in a glow plug. Said component comprises a disc-type or punched-disc type measuring element (3) consisting of a piezoelectric mater...
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WO/2006/079239A1 |
The invention describes a sensor comprising an element package 2 including piezoelectric elements with an upper area 6 and a lower area 7. A preload sleeve 3 surrounds the said upper area 6 of the said element package 2, while an insulat...
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WO/2006/073062A1 |
A dual injection type internal combustion engine including an injector for in-cylinder injection and an injector for intake manifold injection includes learning means for learning a background noise level based on an output signal of a k...
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WO/2006/072510A1 |
The invention relates to a pencil-type glow plug (10) for a self-igniting internal combustion engine. Said pencil-type glow plug (10) comprises a plug base (12) in which a combustion chamber pressure sensor (22) is integrated and a bar-s...
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WO/2006/072514A1 |
The invention relates to a device for measuring the pressure in the combustion chamber of a self-igniting combustion engine. The device comprises a pressure sensor (16, 22, 24) which is integrated into a cylinder head component (10) and ...
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WO/2006/068280A1 |
An engine ECU executes a program including a step (S104) of calculating coefficient of correlation K that is a value related to a deviation between a vibration waveform and a knock waveform model by comparing the engine's vibration wavef...
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WO/2006/054029A1 |
The invention concerns a device for controlling an internal combustion engine (601), comprising means (600) for generating a signal for controlling the internal combustion engine (601), a sensor (602) for supplying a pressure measurement...
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WO/2006/037251A1 |
A spark plug has an optical window for sensing combustion processes in an Otto engine. The optical window is located in the central electrode of the spark plug and has at least one lens exposed to the combustion chamber, as well as at le...
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WO/2006/034928A1 |
The invention concerns a sensor (SE) consisting of single-crystal and piezoelectric material (1) for measuring pressure (6) in an internal combustion engine combustion chamber, comprising a pressure-transmitting pin. Said pressure-transm...
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