WO2017092992A1 - Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne - Google Patents

Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne Download PDF

Info

Publication number
WO2017092992A1
WO2017092992A1 PCT/EP2016/077191 EP2016077191W WO2017092992A1 WO 2017092992 A1 WO2017092992 A1 WO 2017092992A1 EP 2016077191 W EP2016077191 W EP 2016077191W WO 2017092992 A1 WO2017092992 A1 WO 2017092992A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor holder
longitudinal axis
housing
radiator
sensor
Prior art date
Application number
PCT/EP2016/077191
Other languages
German (de)
English (en)
Inventor
Stefan Leopold
Holger Scholzen
Janpeter Wolff
Olaf VOGLER
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017092992A1 publication Critical patent/WO2017092992A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F23Q2007/002—Glowing plugs for internal-combustion engines with sensing means

Definitions

  • the invention relates to a sensor holder or a sensor holder for arrangement in a Druckmessglühkerze or Druckmessglühwkerze, and more precisely a sensor holder for receiving a fiber optic
  • Pressure sensor module and a radiator in a sealing cone housing a Druckmessglühkerze for arrangement in a chamber of a self-igniting internal combustion engine, such as a pre-vortex or combustion chamber of an air-compressing, self-igniting diesel engine or a
  • the invention relates to a Druckmessglühkerze with such a sensor holder, a fiber optic pressure sensor module and a radiator. Due to increasingly stringent requirements and laws regarding the
  • a so-called pressure measuring glow plug can be found in DE 10 2012 209 237 A1, in which a combustion chamber pressure acting on a glow plug of the pressure measuring glow plug arranged in a glow module housing is transmitted via the glow plug to a support tube, and from this via a connecting sleeve to a pressure transfer piece, which ultimately transfers the combustion chamber pressure to a circular pressure sensor in the form of a piezoelectric transducer element.
  • the glow plug is characterized by a flexurally elastic
  • Ceramics can cause a strong temperature influence on the pressure signal. Furthermore, the sensor properties change over the lifetime when using a piezo ceramic, which is disadvantageous. When using a piezo-quartz, there are the disadvantages of low sensor sensitivity and associated susceptibility to interference
  • EMC electromagnetic compatibility
  • a better pressure measurement can be achieved for example by a fiber optic solution, since a fiber optic sensor not only has a small size, but a such sensor also shows a high temperature resistance, may consist of a non-metallic construction and has an immunity to electromagnetic radiation.
  • Fiber-optic combustion chamber pressure sensor 8 for a pressure-measuring glow plug 9 consists of an optically conductive glass fiber cable 81 and a pressure membrane 82 which is protected on the combustion chamber pressure side by a filter 83.
  • Pressure measuring glow plug 9 consists essentially of a ceramic
  • Radiator 91 in which a resistance heater 92 embedded and with
  • Power lines 93 is electrically connected.
  • the heater 91 is held in a metal sleeve 94 which is mounted in a glow plug housing 95, wherein the combustion chamber pressure sensor 8 is arranged together with the filter 83 in an inner channel of the sleeve 94.
  • a portion of the filter 83 is thereby exposed to the combustion chamber, by this part of the filter 83 is connected by one or more openings 941 in the sleeve 94 with the environment of the sleeve 94 in connection.
  • a combustion chamber pressure through the openings 941 and the filter 83 are transferred to the pressure membrane 82, while the heater 91, the
  • Glow pin and connecting bolt as it is known, inter alia, from DE 10 2012 209 237 A1, not be implemented.
  • a sensor holder for use within a housing of a Druckmessglühkerze for an internal combustion engine having the features of claim 1 is proposed, which has a first through hole for receiving a radiator and a second through hole for receiving a fiber optic pressure sensor module.
  • the term through hole is to be understood as a through hole or a through opening, which passes through a component in which this is provided.
  • the first through-hole is further provided in the sensor holder such that the longitudinal axis of the first through-hole intersects with a longitudinal axis of the entire sensor holder.
  • the first through hole in the sensor holder is provided at a certain angle ⁇ 0 ° or ⁇ 180 °, that is, the longitudinal axis of the first through hole occupies a certain angle ⁇ 0 ° or ⁇ 180 ° to the longitudinal axis of the sensor holder.
  • the first through-hole extends obliquely or angled in the sensor holder, so that one in it
  • radiator protrudes at an angle of ⁇ 0 ° or ⁇ 180 ° from the sensor holder. Only thereby it is possible that the radiator is accommodated next to the fiber optic module in the sensor holder and a hot spot at a tip of the radiator still on the longitudinal axis of the sensor holder and thus a longitudinal axis of the entire
  • Pressure measuring glow is coaxial with each other.
  • the longitudinal axis of the sensor holder forms the central axis of the cylindrical shape of the sensor holder. Accordingly, the longitudinal axis of the first through hole and the longitudinal axis of the second extend Through hole substantially in a longitudinal direction of the sensor holder therethrough, so that the two end faces of the cylindrical shape of the sensor holder are connected to each other through the first through hole or through the second through hole.
  • Sensor holder intersects the longitudinal axis of the first through hole with the longitudinal axis of the sensor holder at an angle of> 0 ° and -d.0 ° "preferably> 0.5 ° and ⁇ 5 °, more preferably -2 °, with a possible variance of ⁇ 0.5 °.
  • the angle of the longitudinal axis of the first through hole to the longitudinal axis of the sensor holder is dependent on how the
  • the sensor holder according to the invention further comprises a stop collar on the outside thereof
  • the preferably cylindrical sensor holder has at its radial outer circumference a projection which serves to connect the sensor holder to the housing of the
  • Outer periphery of the sensor holder is provided so as to protrude in an annular manner around the outer periphery of the sensor holder.
  • the stop collar serves as a partner for the butt welding of the two housing components to the sensor holder, which can be done for example by a laser welding process. Accordingly, the sensor holder with the stop collar forms a contour, the welding of, for example, a custom sealing cone housing and a customer-specific
  • the sensor holder according to the invention is preferably by cutting
  • the sensor holder can also be made of a combination of machining and an injection molding process.
  • metal powder injection molding also referred to as MIM technology (from the English term "Metal Injection Molding")
  • metal components for small to large series can be produced, this method over conventional methods such as milling, turning and eroding has the advantage that economically can produce complex components that may have different structures such as, among other thin-walled areas, such as the so-called stop collar, the
  • the main geometry of the sensor holder protrudes. It also gets it allows to make the angle between the longitudinal axis of the first through hole and the longitudinal axis of the sensor holder exactly without having to drill through the usually small sensor holder, as in such a drilling operation in a small component always with a
  • the preferred material may be a metal material that is similar to the neighboring components of the Druckmessglühkerze, such as stainless steel 1.4301.
  • the Druckmessglühkerze further has at least one housing, a heater disposed in the housing and a fiber optic pressure sensor module for detecting a
  • radiator With the longitudinal axis of the sensor holder cuts. This ensures that the radiator is accommodated in the sensor holder next to the fiber optic pressure sensor module, the radiator in the oblique first through hole and the fiber optic pressure sensor module in the second through hole, and a hot spot at the top of the radiator still on the longitudinal axis of the sensor holder and so that a longitudinal axis of the entire pressure measuring glow plug is coaxial with each other.
  • the heater and the fiber optic pressure sensor module are according to the arrangement of the two
  • Druckmessglühkerze consists of the housing of Druckmessglühkerze of at least one sealing cone housing and a threaded housing, so two separate housing components, which are interconnected by the sensor holder, preferably by a weld.
  • the housing of the Druckmessglühkerze be integrally formed, and the
  • Sensor holder may be fixedly disposed in the housing, preferably by welding. Further, more preferably, the heater in the first through hole with a certain Vorsteh Anlagen a Glüh Vietnamese be kept fixed at the top of the heater, preferably also by welding.
  • the pressure measuring glow plug according to the invention there are basically two possible variants of the pressure measuring glow plug according to the invention: 1. Variant: The sealing cone housing and the threaded housing are separate
  • the sealing cone housing can accordingly be a make or engine-specific component in which there is a variance in the angle and in the length, optionally also a variance of the diameter.
  • the threaded housing can also be an announcing or engine-specific component, in which there is a variance in the length and in the position of the thread, optionally also a variance of
  • any desired dimensions of the radiator can consequently be implemented by varying the length of the threaded housing and the length of the sealing cone housing.
  • the radiator is installed at a certain angle in the sensor holder.
  • the angle of the longitudinal axis of the radiator to the Longitudinal axis of the sensor holder selected so that the hot spot is located at the top of the radiator on the center axis of the Druckmessglühkerze, wherein correspondingly by the aforementioned variation of the length of the threaded housing and the length of the Dichtkonusgephinuses the hot spot can be moved to 5 the central axis of the Druckmessglühkerze without the annealing point leaving the central axis.
  • the sealing cone housing and the threaded housing are provided in a single integrated housing component and are thus implemented as housing components in one piece in the housing.
  • the integrated housing component can be correspondingly an announcement-specific or engine-specific component in which there is a variance in the angle, in the length and in the position of the thread, optionally also a variance of the diameter.
  • any Vorstehstede the radiator can be implemented by the variation of the length of the integrated housing component.
  • the radiator is installed at a certain angle in the sensor holder.
  • the angle of the longitudinal axis of the radiator to the longitudinal axis of the sensor holder is chosen so that the hot spot at the top of the radiator is located on the central axis of the Druckmessglühkerze, wherein correspondingly can be moved by the above-mentioned variation of the length of the integrated housing component of the hot spot on the central axis of the Druckmessglühkerze without the annealing point leaves the central axis.
  • the radiator in the first through hole can already be fixed before assembly of the Druckmessglühkerze, for example by welding or the like, resulting in an already fixed in advance 5 Vorstehsted the radiator.
  • the radiator but also in a fixing in the housing of the
  • Radiator are moved from the middle, depending on how far the displacement of the radiator in the first through hole. Depending on the requirement, the hot spot can be pushed out of the middle
  • the outgrowth of the glow point may be compensated for by varying the angle at which the heater is held in the sensor holder.
  • this requires a modified sensor holder.
  • Sensor holder can be maintained, even if the relative position of the welding partners, that is radiator and sensor holder, slightly changed to the welding device.
  • the option of a displaceable heater in the sensor holder with subsequent welding can be used both in the first variant and o also in the second variant, for example, by a variance of
  • a combined combustion chamber pressure sensor with glow function is advantageous because in the increasingly compact internal combustion engine in addition to the usually used pure glow plug usually little space for an additional (threaded) bore for an additional component.
  • Many companies are working to combine the glow function of a glow plug with the pressure measurement function of a combustion chamber pressure sensor and are looking for the pressure measurement principle that optimally enables the integration in terms of technology and costs.
  • a fiber optic solution allows better pressure measurement, since a fiber optic sensor not only has a small size but also such a sensor shows a high temperature resistance, consist of a non-metallic construction can and has immunity to electromagnetic radiation. Accordingly, it becomes possible by a sensor holder according to the present invention to integrate the advantages of the fiber optic measuring principle in a Druckmessglühuxkerze. In addition, in today's time announce or
  • Combustion chamber pressure sensor according to the intrinsic fiber-optic pressure measurement principle proposed with integrated annealing function, which the künden- and engine-specific installation dimensions, in particular the Vorstehimpuls of
  • Fig. 1 shows a partially cut Druckmessglühkerze with a
  • Fig. 2 shows the sensor holder according to the first preferred embodiment of the present invention in a sectional view
  • FIG. 3 shows a partially cutaway detailed view of that in FIG. 1
  • Fig. 4 shows the sensor holder according to a second preferred
  • Embodiment of the present invention in a sectional view
  • Fig. 5 shows a partially sectioned detail view of a sensor holder according to the second preferred embodiment
  • Fig. 6 shows a pressure measuring glow plug according to the prior art.
  • Fig. 1 shows a first preferred embodiment of a sensor holder 1 according to the invention in the installed state in a Druckmessglühkerze 2 in a perspective partially sectioned view.
  • the sensor holder 1 is held in a housing 3 of the Druckmessglühkerze 2, namely, the sensor holder 1 between a sealing cone housing 31 and a threaded housing 32, which represent both components of the housing 3, used and welded to them.
  • the sensor holder 1 holds and fixes a radiator 4 and a
  • Pressure sensor module 5 which consists of a fiber optic assembly consisting essentially of a pressure measuring diaphragm, an optical fiber in the form of a glass fiber and a LED / photodiode unit and by a line with a
  • Evaluation module (not shown) may be connected, wherein both the
  • Pressure sensor module 5 and the evaluation module are held held on a holder 6.
  • the radiator 4 and the pressure sensor module 5 are welded to the sensor holder 1 in the assembled state before installation in an internal combustion engine (not shown).
  • the radiator 4 also has an incandescent tube 41 which protrudes into the combustion chamber of the internal combustion engine, and is electrically contacted at one end by a connecting bolt 42 with a separately installed Glühstromschiene 43, which continues below the holder 6.
  • the tip of the glow tube 41 forms an annealing point 411 whose position in the combustion chamber can be decisive for the combustion. Accordingly, the length of the radiator 4, the structural design of the sensor holder 1 as well as the length of the threaded housing 32, the location of the
  • FIG. 2 shows the sensor holder 1 according to the first preferred
  • the sensor holder 1 has a first through hole 11 for holding and fixing the heating element 4 and a second through hole 12 for holding and fixing the pressure sensor module 5. Both through holes 11, 12 are provided off-center in the sensor holder 1.
  • the second through hole 12 is arranged substantially parallel to a longitudinal axis 10 of the sensor holder 1, whereas the first through hole 11 is provided obliquely in the sensor holder 1, so that a longitudinal axis 110 of the first through hole 11 is angled in the sensor holder 1, that is, between the longitudinal axis 10 of the sensor holder 1 and the longitudinal axis 110 of the first through hole 11 an angle ⁇ with -2 °.
  • the first through hole 11 has a continuously constant diameter in order to accommodate the radiator 4 evenly.
  • the second through hole 12 is a stepped bore having a first portion 121 with a first
  • the pressure sensor module 5 can thereby be installed from the rear into the sensor holder 1, that is to say from the connection side of the pressure measuring glow plug 2, which is opposite to the glow tube side.
  • the first through hole 1 1 passes into a projection which protrudes annularly from a front end face 13 of the sensor holder 1.
  • the second through-hole 12 also merges into a projection which projects annularly from a rear end surface 14 of the sensor holder 1 to ensure the accessibility of the desired weld ,
  • Pressure sensor module 5 and the radiator 4 are respectively disposed on the opposite axial end faces 13, 14 of the cylindrical sensor holder 1, to ensure that the projections for pressure sensor module 5 and 4 radiators are not in the way of each other in the way.
  • the sensor component 1 furthermore has a stop collar 15 on its outer side for welded connection to the housing 3.
  • the sensor holder 1 has the stop collar 15 in the form of a projection on its radial outer circumference, which serves to ensure that the sensor holder 1 can be fixedly connected to the housing 3, for example by a welding process or the like.
  • the stop collar 15 is continuous at the radial outer periphery of the sensor holder 1 provided that it protrudes in an annular manner around the outer periphery of the sensor holder 1 around. The resulting tight and robust weld between sensor holder 1 and housing 3 and between
  • Sensor holder 1 and radiator 4 and pressure sensor module 5 are used so that the interior of the Druckmessglühkerze 2, in which the sensor is located, opposite the combustion chamber or the engine compartment is sealed.
  • FIG. 3 shows, in a sectional detail view, the heating element 4 inserted into the sensor holder 1 of the first preferred embodiment.
  • a longitudinal axis 40 of the heating element 4 follows the longitudinal axis 110 of the first through-bore 11, ie is coaxial with it Longitudinal axis 40 of the radiator 4, the angle a, which is predetermined by the sensor holder 1, to the longitudinal axis 10 of the sensor holder 1 and thus assumes a longitudinal axis 30 of the housing 3.
  • the cylindrical sensor holder 1 in an inner diameter of the housing 3 are the
  • the longitudinal axis 40 of the heating body 4 likewise assumes the angle ⁇ relative to the longitudinal axis 20 of the pressure-measuring glow plug 2.
  • the annealing point 41 1 which is located at the combustion chamber-side tip of the glow tube 41, lies on the longitudinal axis 20 of the pressure-measuring glow plug 2, which is also referred to as the center axis of the pressure-measuring glow plug 2.
  • FIG. 4 shows the sensor holder 1 'according to a second preferred embodiment
  • the sensor holder 1 in a cross section. Identical to the sensor holder 1 of the first preferred embodiment, the sensor holder 1 'has a first one
  • Both through holes 11 ', 12' are eccentrically provided in the sensor holder 1 '.
  • the second through hole 12 ' is arranged substantially parallel to a longitudinal axis 10' of the sensor holder 1 ', whereas the first through hole 10' is provided obliquely in the sensor holder 1 ', so that a longitudinal axis 110' of the first through hole 11 'angled in the Sensor holder 1 'is present, that is, between the longitudinal axis 10' of the sensor holder 1 'and the longitudinal axis 110' of the first through hole 11 'an angle ⁇ with -2 °.
  • the first through hole 11 ' has a continuously constant diameter in order to accommodate the radiator 4 evenly.
  • the second through hole 12 ' is a stepped bore having a first portion 121' with a first
  • Section 122 'passes As can be seen, inter alia, FIG. 5, the pressure sensor module 5 can thereby be installed from the rear into the sensor holder 1 ', ie from the connection side of the pressure measuring glow plug 2', which is opposite to the glow tube side.
  • the first through hole 1 1' goes into a projection which consists of a front
  • End face 13 'of the sensor holder 1' projects annularly.
  • the second through hole 12' also passes into a projection which protrudes annularly from a rear end face 14 'of the sensor holder 1' in order to increase the accessibility of the to ensure desired weld.
  • Pressure sensor module 5 and the radiator 4 are respectively arranged on the mutually opposite axial end faces 13 ', 14' of the cylindrical sensor holder 1 'to ensure that the projections for pressure sensor module 5 and 4 radiator during welding not each other be in the way.
  • the sensor holder 1 'of the second preferred embodiment has no
  • Stop collar since the sensor holder 1 'is provided for use in a one-piece housing, as described below.
  • FIG. 5 shows in a sectional detail view the heating element 4 inserted into the sensor holder 1 'of the second preferred embodiment, both of which are inserted in a pressure measuring glow plug 2' according to a second embodiment.
  • a longitudinal axis 40 of the heating element 4 follows the longitudinal axis 110 'of the first
  • the housing 3 ' is in the present embodiment of a one-piece component, in which the
  • Sealing cone housing and the threaded housing are not provided as separate components, but only present as sections of the same component.
  • Inner diameter of the one-piece housing 3 ' are the longitudinal axis 10' of the sensor holder 1 'and the longitudinal axis 30' of the housing 3 'to each other coaxially.
  • the longitudinal axis 40 of the heating element 4 correspondingly also assumes the angle ⁇ to the longitudinal axis 20 'of FIG
  • the length of the heater 4 and its mounting position in the sensor holder 1 'and the structural configuration of the sensor holder 1, that is, in particular, the angle of the first through hole 11, can determine the position of the hot point 411 in the combustion chamber but also an axial arrangement of the sensor holder 1 'in the housing 3'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

La présente invention concerne un support de capteur (1 ; 1') destiné à être utilisé à l'intérieur d'un boîtier (3) d'une bougie de préchauffage à mesure de pression (2 ; 2'), lequel support de capteur présente un premier trou débouchant (11 ; 11') destiné à recevoir un élément chauffant (4), ainsi qu'un deuxième trou débouchant (12 ; 12') destiné à recevoir un module capteur de pression à fibre optique (5), l'axe longitudinal (110 ; 110') du premier trou débouchant (11 ; 11') coupant l'axe longitudinal (10 ; 10') du support de capteur (1 ; 1'). La présente invention concerne en outre une bougie de préchauffage à mesure de pression (2 ; 2) présentant un support de capteur (1 ; 1') de ce type.
PCT/EP2016/077191 2015-12-03 2016-11-10 Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne WO2017092992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015224169.6A DE102015224169A1 (de) 2015-12-03 2015-12-03 Sensorhalter für eine Druckmessglühkerze einer Brennkraftmaschine
DE102015224169.6 2015-12-03

Publications (1)

Publication Number Publication Date
WO2017092992A1 true WO2017092992A1 (fr) 2017-06-08

Family

ID=57286482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/077191 WO2017092992A1 (fr) 2015-12-03 2016-11-10 Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne

Country Status (2)

Country Link
DE (1) DE102015224169A1 (fr)
WO (1) WO2017092992A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218544A1 (de) * 2001-04-26 2002-11-28 Denso Corp Glühkerze mit eingebautem Verbrennungsdrucksensor
DE102004043874A1 (de) * 2004-09-10 2006-03-16 Robert Bosch Gmbh Vorrichtung zur Erfassung des Drucks in einem Brennraum einer Verbrennungskraftmaschine
US20070023412A1 (en) 2005-07-28 2007-02-01 Wlodarczyk Marek T Glow plug integrated pressure sensor with filter trap
DE102012209237A1 (de) 2012-05-31 2013-12-05 Robert Bosch Gmbh Druckmessglühkerze

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218544A1 (de) * 2001-04-26 2002-11-28 Denso Corp Glühkerze mit eingebautem Verbrennungsdrucksensor
DE102004043874A1 (de) * 2004-09-10 2006-03-16 Robert Bosch Gmbh Vorrichtung zur Erfassung des Drucks in einem Brennraum einer Verbrennungskraftmaschine
US20070023412A1 (en) 2005-07-28 2007-02-01 Wlodarczyk Marek T Glow plug integrated pressure sensor with filter trap
DE102012209237A1 (de) 2012-05-31 2013-12-05 Robert Bosch Gmbh Druckmessglühkerze

Also Published As

Publication number Publication date
DE102015224169A1 (de) 2017-06-08

Similar Documents

Publication Publication Date Title
EP1989485B1 (fr) Dispositif de mesure de la pression
EP2069739B1 (fr) Capteur enfichable avec mesure combinée de pression et de température
DE102012110991B4 (de) Steckereinheit und Verbindungssystem zum Verbinden von Kapillaren, insbesondere für die Hochleistungsflüssigkeitschromatographie
DE10249408B4 (de) Glühkerze und entsprechendes Herstellungsverfahren
EP2102620A1 (fr) Dispositif de mesure de pression
DE102007022619A1 (de) Glühkerze und Verfahren zum Herstellen derselben
EP2223066A2 (fr) Composant pour mesurer une force ou une pression et capteur comprenant un tel composant
DE60224741T2 (de) Glühkerze und Struktur für deren Befestigung am Zylinderkopf
DE102004063749A1 (de) Stahlmembran für Brennraumdrucksensoren
DE19740363A1 (de) Gassensor
WO2008074547A1 (fr) Dispositif de mesure de pression
WO2017092992A1 (fr) Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne
DE102013016703B4 (de) Kraftstoffinjektor mit einem Brennraumdrucksensor sowie ein Montage- und Demontageverfahren für einen solchen
DE102005025115A1 (de) Integrierter Brennraumdrucksensor
EP2519731B1 (fr) Injecteur pour fluide
WO2017093110A1 (fr) Support de capteur pour bougie de préchauffage à mesure de pression d'un moteur à combustion interne
DE10041282B4 (de) Verfahren zur Verbindung eines Heizstabes einer Glühkerze mit ihrem Glühkerzenkörper und eine entsprechende Glühkerze
EP2724134B1 (fr) Détecteur destiné à la détection d'au moins une propriété d'un milieu fluide
WO2012146429A1 (fr) Dispositif pour détecter une pression, en particulier une pression de chambre de combustion d'un moteur à combustion interne
EP2519730B1 (fr) Injecteur de fluide
DE102006018606B4 (de) Messglühkerze
DE60223985T2 (de) Glühkerze für Dieselmotoren und Verfahren zum Herstellen derselben
EP3189273B1 (fr) Bougie de préchauffage
DE10139169A1 (de) Metallene Gewindebuchse und Schraubverbindung mittels einer Gewindebuchse
WO2017093108A1 (fr) Dispositif de détection d'une pression dans une chambre de combustion d'un moteur à combustion interne

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16794599

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16794599

Country of ref document: EP

Kind code of ref document: A1