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1. WO2022094642 - PRECHAMBER SPARK PLUG

Publication Number WO/2022/094642
Publication Date 12.05.2022
International Application No. PCT/AT2021/060406
International Filing Date 05.11.2021
IPC
F02B 19/12 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
12with positive ignition
H01T 13/54 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13Sparking plugs
54having electrodes arranged in a partly-enclosed ignition chamber
F02P 13/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
13Sparking plugs structurally combined with other parts of internal-combustion engines
G01L 23/22 2006.1
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
23Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
22for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
F02B 19/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
10with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02D 35/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
35Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for
02on interior conditions
Applicants
  • PIEZOCRYST ADVANCED SENSORICS GMBH [AT]/[AT]
Inventors
  • BAUMGARTNER, Martin
  • MILOSEVIC, Igor
  • KROEGER, Dietmar
Agents
  • BABELUK, Michael
Priority Data
A 50952/202005.11.2020AT
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VORKAMMERZÜNDKERZE
(EN) PRECHAMBER SPARK PLUG
(FR) BOUGIE D'ALLUMAGE À PRÉCHAMBRE
Abstract
(DE) Die Erfindung betrifft eine Vorkammerzündkerze (1) geeignet für den Einsatz in einem Brennraum (12) einer Verbrennungskraftmaschine, mit einer Vorkammer (2), die beim bestimmungsgemäßen Einsatz über zumindest eine Öffnung (3) in Fluidverbindung mit dem Brennraum (12) steht, wobei in der Vorkammer (2) eine Zündeinrichtung mit zumindest einer Mittelelektrode (4) angeordnet ist, die geeignet ist ein zündfähiges Gemisch zu zünden, wobei weiters in der Vorkammer (2) ein erster Drucksensor (6) angeordnet ist, um einen Druckverlauf in der Vorkammer (2) zu messen, wobei die Vorkammerzündkerze (1) einen zweiten Drucksensor (9) aufweist, der geeignet ist, einen Druckverlauf im Brennraum (12) zu messen.
(EN) The invention relates to a prechamber spark plug (1) suitable for use in a combustion chamber (12) of an internal combustion engine, comprising a prechamber (2), which is fluidically connected to the combustion chamber (12) by means of at least one opening (3) during normal use, wherein: - an ignition device having at least one central electrode (4) is disposed in the prechamber (2), said ignition device being suitable for igniting an ignitable mixture; - a first pressure sensor (6) is also disposed in the prechamber (2) in order to measure a pressure curve in the prechamber (2); - the prechamber spark plug (1) has a second pressure sensor (9), which is suitable for measuring a pressure curve in the combustion chamber (12).
(FR) L'invention concerne une bougie d'allumage à préchambre (1) appropriée pour être utilisée dans une chambre de combustion (12) d’un moteur à combustion interne, comprenant une préchambre (2) qui, dans le cadre d’une utilisation conforme, est en liaison fluidique avec la chambre de combustion (12) par l'intermédiaire d'au moins une ouverture (3). Un dispositif d'allumage comprenant au moins une électrode centrale (4) est disposé dans la préchambre (2), ce dispositif étant adapté pour enflammer un mélange inflammable. En outre, un premier capteur de pression (6) est disposé dans la préchambre (2) pour mesurer une courbe de pression dans la préchambre (2), la bougie d'allumage à préchambre (1) présentant un deuxième capteur de pression (9) qui est approprié pour mesurer une courbe de pression dans la chambre de combustion (12).
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