EP4720496A1 - Injecteur de carburant - Google Patents

Injecteur de carburant

Info

Publication number
EP4720496A1
EP4720496A1 EP24734801.4A EP24734801A EP4720496A1 EP 4720496 A1 EP4720496 A1 EP 4720496A1 EP 24734801 A EP24734801 A EP 24734801A EP 4720496 A1 EP4720496 A1 EP 4720496A1
Authority
EP
European Patent Office
Prior art keywords
damping
valve
chamber
valve needle
fuel injector
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP24734801.4A
Other languages
German (de)
English (en)
Inventor
Diego Guerrato
Michael Peter Cooke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phinia Delphi Luxembourg SARL
Original Assignee
Phinia Delphi Luxembourg SARL
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 Phinia Delphi Luxembourg SARL filed Critical Phinia Delphi Luxembourg SARL
Publication of EP4720496A1 publication Critical patent/EP4720496A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0251—Details of actuators therefor
    • F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
    • F02M21/026—Lift valves, i.e. stem operated valves
    • F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

La présente invention concerne un injecteur de carburant (10) pour distribuer du carburant gazeux à un moteur à combustion interne, l'injecteur de carburant (10) comprenant un pointeau de soupape (30) qui peut venir en prise avec un siège de pointeau de soupape (20) pour commander la distribution de carburant gazeux dans un espace de combustion ; et un actionneur (32) pour amener le pointeau de soupape (30) à se déplacer dans une plage de déplacement entre une position posée dans laquelle il vient en prise avec le siège de pointeau de soupape (20) et une position complètement ouverte. Un agencement d'amortissement (74) comprend une chambre d'amortissement (80) remplie d'un fluide d'amortissement qui sert à amortir le mouvement d'ouverture du pointeau de soupape (30) lorsqu'il s'éloigne du siège de pointeau de soupape (20) et comprenant en outre une soupape d'amortissement (88, 104) qui peut coopérer avec un siège de soupape d'amortissement (90) pour commander la sortie de fluide d'amortissement de la chambre d'amortissement (80) vers un drain basse pression, la soupape d'amortissement (88, 104) étant conçue pour se désolidariser du siège de soupape d'amortissement (90) en réponse au mouvement du pointeau de soupape (30).
EP24734801.4A 2023-06-01 2024-05-31 Injecteur de carburant Pending EP4720496A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2308191.2A GB2630631B (en) 2023-06-01 2023-06-01 Fuel injector
PCT/EP2024/065107 WO2024246337A1 (fr) 2023-06-01 2024-05-31 Injecteur de carburant

Publications (1)

Publication Number Publication Date
EP4720496A1 true EP4720496A1 (fr) 2026-04-08

Family

ID=87156902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24734801.4A Pending EP4720496A1 (fr) 2023-06-01 2024-05-31 Injecteur de carburant

Country Status (5)

Country Link
EP (1) EP4720496A1 (fr)
KR (1) KR20260020128A (fr)
CN (1) CN121219489A (fr)
GB (1) GB2630631B (fr)
WO (1) WO2024246337A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119844245B (zh) * 2025-03-11 2025-09-30 一汽解放汽车有限公司 一种针阀机构及气体喷射器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089467A (en) * 1999-05-26 2000-07-18 Siemens Automotive Corporation Compressed natural gas injector with gaseous damping for armature needle assembly during opening
DE102004010760A1 (de) * 2004-03-05 2005-09-22 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen mit Nadelhubdämpfung
EP1837515A1 (fr) * 2006-03-20 2007-09-26 Delphi Technologies, Inc. Dispositif d'amortissement pour un injecteur de carburant
WO2010144559A2 (fr) * 2009-06-10 2010-12-16 Cummins Intellectual Properties, Inc. Injecteur de carburant par action directe piézoélectrique avec liaison hydraulique
EP2290219B1 (fr) * 2009-08-26 2013-01-23 Delphi Technologies Holding S.à.r.l. Vanne à trois voies
DE102021200689A1 (de) * 2021-01-27 2022-07-28 Robert Bosch Gesellschaft mit beschränkter Haftung Gasinjektor mit reduziertem Verschleiß und Dämpfungseinrichtung
DE102021205388A1 (de) * 2021-05-27 2022-12-01 Robert Bosch Gesellschaft mit beschränkter Haftung Gasdosierventil
DE102021205694A1 (de) * 2021-06-07 2022-12-08 Robert Bosch Gesellschaft mit beschränkter Haftung Gasinjektor mit Dämpfungseinrichtung, insbesondere für kurze Hübe
DE102021212825A1 (de) * 2021-11-16 2023-05-17 Robert Bosch Gesellschaft mit beschränkter Haftung Gasinjektor mit hydraulischer Dämpfungseinrichtung mit Freiweg und variabler Drosseleinrichtung

Also Published As

Publication number Publication date
GB202308191D0 (en) 2023-07-19
KR20260020128A (ko) 2026-02-10
GB2630631B (en) 2026-03-18
CN121219489A (zh) 2025-12-26
GB2630631A (en) 2024-12-04
WO2024246337A1 (fr) 2024-12-05

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