WO2016082986A3 - Gas injector having improved thermal properties - Google Patents

Gas injector having improved thermal properties Download PDF

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Publication number
WO2016082986A3
WO2016082986A3 PCT/EP2015/072307 EP2015072307W WO2016082986A3 WO 2016082986 A3 WO2016082986 A3 WO 2016082986A3 EP 2015072307 W EP2015072307 W EP 2015072307W WO 2016082986 A3 WO2016082986 A3 WO 2016082986A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas injector
injector
valve body
disclosed
thermal properties
Prior art date
Application number
PCT/EP2015/072307
Other languages
German (de)
French (fr)
Other versions
WO2016082986A2 (en
Inventor
Friedrich Moser
Guenther Hohl
Michael Knorpp
Olaf SCHOENROCK
Sven Krissler
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
Priority to JP2017528566A priority Critical patent/JP6498292B2/en
Publication of WO2016082986A2 publication Critical patent/WO2016082986A2/en
Publication of WO2016082986A3 publication Critical patent/WO2016082986A3/en

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
    • F02M21/0296—Manufacturing or assembly; Materials, e.g. coatings
    • 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
    • F02M21/0269—Outwardly opening valves, e.g. poppet 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
    • 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
    • F02M21/029—Arrangement on engines or vehicle bodies; Conversion to gaseous fuel supply systems
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9007—Ceramic materials
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9046—Multi-layered materials
    • 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/046—Injectors with heating, cooling, or thermally-insulating means with thermally-insulating 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

Abstract

The invention relates to a gas injector for injecting a gaseous fuel directly into a combustion chamber (9) of an internal combustion engine. Said gas injector comprises a valve closing elem ent (2) for opening or closing a port (37), a valve body (3), and a sealing seat (4) between the valve body (3) and the valve closing element (2). At an end (30) facing the combustion chamber, the valve body (3) comprises a thermal protection device (31). The invention further relates to an injector arrangement comprising a disclosed gas injector. The invention finally relates to an internal combustion engine comprising a disclosed gas injector or a disclosed injector arrangement.
PCT/EP2015/072307 2014-11-28 2015-09-29 Gas injector having improved thermal properties WO2016082986A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017528566A JP6498292B2 (en) 2014-11-28 2015-09-29 Gas injector with improved thermal properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014224343.2A DE102014224343A1 (en) 2014-11-28 2014-11-28 Gas injector with improved thermal properties
DE102014224343.2 2014-11-28

Publications (2)

Publication Number Publication Date
WO2016082986A2 WO2016082986A2 (en) 2016-06-02
WO2016082986A3 true WO2016082986A3 (en) 2016-07-28

Family

ID=54361047

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/072307 WO2016082986A2 (en) 2014-11-28 2015-09-29 Gas injector having improved thermal properties

Country Status (3)

Country Link
JP (1) JP6498292B2 (en)
DE (1) DE102014224343A1 (en)
WO (1) WO2016082986A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020203194A1 (en) 2020-03-12 2021-09-16 Erwin Junker Grinding Technology A.S. COMBUSTION ENGINE FOR OPERATION WITH GASEOUS FUEL, IN PARTICULAR HYDROGEN, AND HIGH PRESSURE VALVE FOR THE INTRODUCTION OF GASEOUS FUEL INTO THE COMBUSTION ENGINE
GB2611339B (en) * 2021-09-30 2024-02-21 Borgwarner Luxembourg Automotive Systems S A Injector for gaseous fuel
DE102021134495A1 (en) * 2021-12-23 2023-06-29 Liebherr-Components Deggendorf Gmbh Injector for injecting fuel
DE102022209622A1 (en) * 2022-09-14 2024-03-14 Robert Bosch Gesellschaft mit beschränkter Haftung Gas injector with reduced temperatures at the sealing seat

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062198A (en) * 1961-11-17 1962-11-06 Nickles Machine Corp Gas engine fuel injection
US3425399A (en) * 1966-05-23 1969-02-04 American Gas Ass Stratified charge gas engine
WO1993023662A1 (en) * 1992-05-11 1993-11-25 United Fuels Limited Improvements in or relating to internal combustion engines
JPH09273451A (en) * 1996-04-05 1997-10-21 Keehin:Kk Gaseous fuel injection valve
AT413136B (en) * 1998-04-03 2005-11-15 Hoerbiger Ventilwerke Gmbh GAS LOAD VALVE
JP2007162678A (en) * 2005-11-16 2007-06-28 Toyota Motor Corp Fuel injection valve
JP2007205295A (en) * 2006-02-03 2007-08-16 Mitsui Eng & Shipbuild Co Ltd Cooling device of pilot fuel injection valve for gas engine
EP2636880A1 (en) * 2012-03-06 2013-09-11 Delphi Automotive Systems Luxembourg SA Injector tip seal
EP2775133A1 (en) * 2013-03-06 2014-09-10 Delphi Automotive Systems Luxembourg SA Protection mean for the nozzle of an injector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041576U (en) * 1983-08-30 1985-03-23 日産自動車株式会社 direct injection fuel injector
JPS62298658A (en) * 1986-06-19 1987-12-25 Diesel Kiki Co Ltd Fuel injection nozzle
JP3918361B2 (en) * 1999-05-13 2007-05-23 いすゞ自動車株式会社 Sub-chamber gas engine
JP3642011B2 (en) * 2000-07-19 2005-04-27 日産自動車株式会社 Compression self-ignition internal combustion engine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062198A (en) * 1961-11-17 1962-11-06 Nickles Machine Corp Gas engine fuel injection
US3425399A (en) * 1966-05-23 1969-02-04 American Gas Ass Stratified charge gas engine
WO1993023662A1 (en) * 1992-05-11 1993-11-25 United Fuels Limited Improvements in or relating to internal combustion engines
JPH09273451A (en) * 1996-04-05 1997-10-21 Keehin:Kk Gaseous fuel injection valve
AT413136B (en) * 1998-04-03 2005-11-15 Hoerbiger Ventilwerke Gmbh GAS LOAD VALVE
JP2007162678A (en) * 2005-11-16 2007-06-28 Toyota Motor Corp Fuel injection valve
JP2007205295A (en) * 2006-02-03 2007-08-16 Mitsui Eng & Shipbuild Co Ltd Cooling device of pilot fuel injection valve for gas engine
EP2636880A1 (en) * 2012-03-06 2013-09-11 Delphi Automotive Systems Luxembourg SA Injector tip seal
EP2775133A1 (en) * 2013-03-06 2014-09-10 Delphi Automotive Systems Luxembourg SA Protection mean for the nozzle of an injector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BACKHAUS R: "Neue aufgeladene Motoren für den Erdgasbetrieb", MTZ - MOTORTECHNISCHE ZEITSCHRIFT,, vol. 70, 1 July 2009 (2009-07-01), pages 536 - 539, XP007909241, ISSN: 0024-8525 *

Also Published As

Publication number Publication date
WO2016082986A2 (en) 2016-06-02
JP2017536501A (en) 2017-12-07
JP6498292B2 (en) 2019-04-10
DE102014224343A1 (en) 2016-06-02

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