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JP2009115705 |
To solve a problem wherein an integrated value of an output from a piezoelectric sensor does not get to zero, even when combustion pressure gets to zero after finishing an exhaust stroke of an engine, to remain a value integrated with a ...
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JP2009097926 |
To provide a pressure sensor capable of reducing an influence of engine combustion heat, and its mounting structure.This pressure sensor 100 has an expansion material 50 for filling up a gap 300 between the wall surface of a mounting hol...
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JP2009091951 |
To provide an engine pressure sensor whose output line is not exposed to the outside and which is hardly influenced by an electromagnetic noise.The sensor comprises a ring-shaped sensor part installed at the bottom of a plug hole and has...
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JP2009091950 |
To provide a pressure sensor for an engine capable of easily coping with an extremely deep plug hole, reducing weight and reducing wasteful cost.This sensor includes an annular sensor part 2 installed at a bottom of a plug hole and inser...
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JP2009085723 |
To reduce a fluctuation in a preliminary load generated due to a fluctuation in a welding distortion.After a stem 20 and a metal case 30 are welded in a state that the load is applied from a pressure receiving diaphragm 40 to a sensor ch...
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JP2009019929 |
To reduce anxiety that poor appearance and resin cracks may occur by scraped pieces generated by allowing a groove 19 in a weight 3 to scrape an insulating member in a knock sensor.In both the end edges circumferentially dividing the gro...
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JP2009019905 |
To allow an ECU to which voltage is input from a knock sensor 1 to grasp only voltage generated by knocking for voltage generated in a detection element of the knock sensor 1.The knock sensor 1 includes: a first piezo element 2 polarized...
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JP2009008694 |
To provide a pressure sensor capable of reducing an output error of a sensor element even when used in a high temperature environment.The pressure sensor is provided with a housing 20, a diaphragm 24 for partitioning an inside and outsid...
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JP2009002962 |
To provide a pressure sensor which is so constituted as to prevent a blocking substance from blocking a pressure introducing pipe.This pressure sensor has a pressure sensor element 1 which is held inside a pressure chamber 18 and the pre...
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JP2008309663 |
To provide a resonance-type knocking sensor capable of preventing loosening of uniting by screwing between a mounting screw member and the tapped hole part of a main body metal fitting, and ensuring conduction between the mounting screw ...
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JP2008304232 |
To prevent clogging of a pressure introducing tube by introducing pressure using a gap provided between a main air passage component and an insertion section of an air flow measuring apparatus.The intake air flow measuring apparatus inte...
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JP2008298530 |
To design a constitution of a cylindrical body, and reduce a characteristic frequency component of the cylindrical body to that of the cylindrical body entirely formed from a metal material or less in a pressure detector provided with th...
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JP2008286589 |
To simplify an internal structure; to improve the productivity; to reduce the number of manufacturing processes and a manufacturing cost; to avoid a disconnection and an imperfect contact in a joint (a connection) due to a vibrational en...
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JP2008286721 |
To reduce a cost and to enhance the versatility without changing a pressure sensor even if a circuit board section is provided in it; and to mitigate requirements for a heat-resistant component, a vibration-proof component, a heat-resist...
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JP2008281471 |
To provide a combustion pressure sensor superior in detection accuracy and heat resistance.The combustion pressure sensor 1 detects a combustion pressure in a combustion chamber 61 of an internal combustion engine. The combustion pressur...
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JP2008275525 |
To provide a reset timing generating device for generating the timing to reset the offset drift of a cylinder internal pressure sensor, and a cylinder internal pressure detecting device capable of accurately detecting the cylinder intern...
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JP2008256723 |
To provide an output correction device capable of correcting an offset drift of a cylinder internal pressure sensor, and a cylinder internal pressure detecting device capable of accurately detecting cylinder internal pressure of an inter...
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JP2008224671 |
To improve a sensor device 30 for measuring a pressure in a combustion chamber of an internal combustion engine of a type having a conductive spring element 31 and an opposite element 32 which are in mechanical contact via at least one c...
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JP2008216223 |
To provide an output correction device capable of correcting the offset lift of a cylinder pressure sensor and a cylinder pressure sensor capable of accurately detecting the cylinder pressure of an internal combustion engine using the ou...
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JP2008209102 |
To provide a glow plug with a combustion pressure sensor reduced in size than conventional ones and having excellent sensibility.An axis 6 is provided inside a main body fitting 1 on the rear end side of a heater 4. The axis 6 is compose...
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JP2008197001 |
To prevent any gel from peeling and any air bubble from being generated in the gel in a pressure sensor with a structure which detects a pressure by using its backside for receiving the pressure and keeps a sensing part protected by the ...
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JP2008191059 |
To provide a combustion pressure sensor capable of precisely performing pressure measurement by preventing induced air column vibration while preventing errors; to provide a combustion pressure sensor capable of preventing measurement ac...
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JP2008184336 |
To provide a lead-free piezoelectric ceramic which is capable of increasing the amount of charge generated per unit pressure of 1 N by utilizing the direct piezoelectric effect, shows a small deviation of charge generated at temperatures...
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JP2008185419 |
To provide a pressure detector for stably receiving a pressure detection element, and achieving a proper piezoelectric conversion function of the pressure detection element.An annular thick section 1351 of an annular negative electrode p...
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JP2008180714 |
To provide a cylinder pressure measuring device capable of measuring constantly the cylinder pressure in an internal combustion engine, and achievable without requiring a structural change of the internal combustion engine.The device inc...
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JP2008180715 |
To provide a cylinder pressure measuring device capable of measuring constantly the cylinder pressure in a cylinder of an internal combustion engine, and achievable comparatively inexpensively without requiring a structural change of the...
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JP2008164559 |
To provide a circuit for converting efficiently an electric resistance value changing by a pressure into a voltage, and delivering with high sensitivity a voltage change portion changed by the pressure to an amplifier, when using a washe...
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JP2008157896 |
To provide piezoelectric sensor which can be installed so as not to damage any pressure sensing means to be fixed.This sensor is provided with a pressure sensing means 11 including both pressure transmission means 11 for transmitting pre...
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JP2008144677 |
To prevent output characteristics of a sensor from receiving a bad influence even if a support member constructing a knocking sensor contracts in a knocking sensor having a piezoelectric element supported by a resin support member.The kn...
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JP2008145377 |
To accurately detect low pressure in a pressure sensor with two stems, having pressure-sensing sections in a housing, when the pressure is detected over a wide pressure range, starting from a low pressure to a high pressure in the pressu...
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JP2008139150 |
To provide a combustion pressure sensor superior in detection accuracy and durability.The combustion pressure sensor 1 for detecting a combustion pressure in a combustion chamber 61 of an internal combustion engine includes: a hollow hou...
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JP2008139030 |
To provide a pressure sensor which is simple in structure, excellent in heat-resisting property and quick in response.The pressure sensor 101 is provided with a ceramic substrate 1 having a pressure sensing part 5 of a film shape wherein...
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JP2008128805 |
To provide a reliable pressure sensor for an internal combustion engine capable of eliminating the breakdown of a pressure sensitive body when the pressure sensors for the internal combustion engine having a pressure sensitive bodies mad...
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JP2008116258 |
To prevent an adverse effect on the output characteristics of a knocking sensor, even if a supporting member constituting the sensor contracts.A knocking sensor unit 1 includes a knocking sensor 10 having a supporting member 21 made of r...
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JP2008107159 |
To provide a pressure sensor which has a simple structure, excellent heat-resisting property, and high-speed responsivity.The pressure sensor 101 comprises a ceramic base 1 in which a cavity (micro cavity) 2 and a communication channel 3...
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JP2008101989 |
To solve the problem that a deposit adhering and accumulating at a gap between a conventional sensor mounting hole and a detecting part of a pressure sensor adversely affects a heat-dissipation property of the pressure sensor.A sensor mo...
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JP2008102069 |
To provide a semiconductor strain-sensitive sensor that is superior in temperature stability by separating a formation region of an electrode from a diaphragm forming a piezoresistant element, and is less likely to receive influence of t...
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JP2008096283 |
To prevent generation of cracks, as much as possible, in a connecting part to a protective material for the case of a pressure sensor, comprising by forming a pressure-detecting sensor chip in this case, formed by molding with resin and ...
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JP2008089507 |
To solve a problem that detection may be adversely affected by air column resonance which occurs between a detection part of a sensor and an opening end of a sensor mounting hole formed in a sensor mounting member in the case that the se...
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JP2008089492 |
To appropriately lower the temperature of a pressure-receiving diaphragm and a sensor chip, in a pressure sensor for performing pressure detection by transmitting pressure received by the pressure-receiving diaphragm to the sensor chip t...
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JP2008088937 |
To provide a detector hardly having an adverse effect on an intake air temperature detecting part by the heat generation of an intake pressure detecting part.The detector comprises outer resin 7 integrated with a terminal 9 with one end ...
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JP2008082801 |
To lessen the strain of a diaphragm for pressure reception owing to heat in a pressure sensor with a pressure transmission member housed within a metallic tubular case having the tubular case having the diaphragm for pressure reception o...
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JP2008082825 |
To reduce variations in sensor characteristics by reducing the size of low-melting-point glass to which a sensor chip is pasted.A metal stem 30 is provided with a recession part 30a, and the low-melting-point glass 51 is arranged in the ...
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JP2008082823 |
To lower the transfer of heat received by a pressure receiving diaphragm to a sensor chip.A heat dissipation member 70 to be in contact with a metal stem 30 and a housing 40 is arranged between an outer circumferential surface of the met...
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JP2008076155 |
To suppress transverse vibrations of a rod-like pressure transmitting member in a pressure sensor which is made up by inserting the pressure transmitting member into a cylindrical case having a pressure receiving diaphragm at one end and...
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JP2008076154 |
To provide a pressure sensor capable of preventing a diaphragm which is made up of a semiconductor, from being damaged by an impact from outside and the like.A first oil 70a is disposed so as to fill up a recessed part 21 for forming a s...
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JP2008070190 |
To reduce the influence due to thermal distortions, without having to provide a cooling mechanism with respect to the diaphragm for pressure receiver, in a pressure sensor with the diaphragm for receiving the pressure to be measured.The ...
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JP2008070212 |
To provide a cylindrical internal pressure sensor mounting structure capable of miniaturizing a cylindrical internal pressure sensor, and securing desired output accuracy by improving heat releasability.Concerning a cylinder head 33 wher...
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JP2008070191 |
To reduce the influence due to thermal distortions to the diaphragm for pressure receiver, without having to provide a cooling mechanism, in a pressure sensor with the diaphragm for receiving the pressure to be measured.The diaphragm 20 ...
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JP2008064529 |
To provide a pressure sensor constituted with two connected cylindrical members comprising sensing parts at one end side, a pressure receiving diaphragm at the other end side in which the cylindrical member storing a pressure transmittin...
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