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1. WO2020115176 - IGNITION UNIT AND MOTORIZED PRODUCT

Publication Number WO/2020/115176
Publication Date 11.06.2020
International Application No. PCT/EP2019/083752
International Filing Date 04.12.2019
IPC
F02P 3/01 2006.01
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
3Other electric spark ignition installations characterised by the type of ignition power generation storage
01Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator
F02P 9/00 2006.01
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
9Electric spark ignition control, not otherwise provided for
F02P 23/04 2006.01
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
23Other ignition
04Other physical ignition means, e.g. using laser rays
H01T 13/00 2006.01
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
CPC
F02P 23/045
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
23Other ignition
04Other physical ignition means, e.g. using laser rays
045using electromagnetic microwaves
F02P 3/01
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
3Other installations
01Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator
F02P 9/007
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
9Electric spark ignition control, not otherwise provided for
002Control of spark intensity, intensifying, lengthening, suppression
007by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition
Applicants
  • PUNCH POWERTRAIN FRANCE [FR]/[FR]
Inventors
  • TINWELL, Paul
  • CHARLES, Thomas
  • KERMORVANT, Alexandre
Agents
  • DEN BRABER, Gerard Paul
Priority Data
18306615.804.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IGNITION UNIT AND MOTORIZED PRODUCT
(FR) UNITÉ D'ALLUMAGE ET PRODUIT MOTORISÉ
Abstract
(EN)
An ignition unit (100) that can produce an ignition in a combustion chamber of a combustion engine has the following characteristics. The ignition unit (100) comprises an electrode (120) that has a tip section (123) that is exposed to the combustion chamber when the ignition unit (100) is fitted on the combustion engine. The electrode (120) forms part of a microwave resonating structure (106, 119, 120) that can radiate a microwave field into the combustion chamber when a microwave excitation signal is applied to the electrode. A winding (135) is electrically coupled to the electrode(120). The winding (135) and the electrode (120) form part of a radiofrequency resonator (101, 120, 135) that can radiate a radiofrequency field into the combustion chamber when a radiofrequency excitation signal is applied to the winding (135). A microwave signal path (127, 128) in the ignition unit (100) can transfer the microwave excitation signal from a signal input connector (109) on the ignition unit (100) to the electrode (120). The microwave signal path (127, 128) comprising an inductive portion (132) and a capacitive coupling structure (124, 128, 132) adapted to provide a capacitive coupling from the inductive portion to the electrode (120).
(FR)
L'invention concerne une unité d'allumage (100) pouvant produire un allumage dans une chambre de combustion d'un moteur à combustion, et présentant les caractéristiques suivantes. L'unité d'allumage (100) comprend une électrode (120) comportant une section de pointe (123) exposée à la chambre de combustion lorsque l'unité d'allumage (100) est montée sur le moteur à combustion. L'électrode (120) fait partie d'une structure résonante à micro-ondes (106, 119, 120) pouvant rayonner un champ de micro-ondes dans la chambre de combustion lorsqu'un signal d'excitation de micro-ondes est appliqué à l'électrode. Un enroulement (135) est couplé électriquement à l'électrode (120). L'enroulement (135) et l'électrode (120) font partie d'un résonateur à radiofréquence (101, 120, 135) pouvant rayonner un champ de radiofréquence dans la chambre de combustion lorsqu'un signal d'excitation de radiofréquence est appliqué à l'enroulement (135). Un trajet de signal de micro-ondes (127, 128) dans l'unité d'allumage (100) peut transférer le signal d'excitation de micro-ondes d'un connecteur d'entrée de signal (109), sur l'unité d'allumage (100), à l'électrode (120). Le trajet de signal de micro-ondes (127, 128) comprend une partie inductive (132) et une structure de couplage capacitif (124, 128, 132) conçue afin d'assurer un couplage capacitif de la partie inductive à l'électrode (120).
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Latest bibliographic data on file with the International Bureau