WO2016166923A1 - ガソリン直噴レール - Google Patents
ガソリン直噴レール Download PDFInfo
- Publication number
- WO2016166923A1 WO2016166923A1 PCT/JP2016/000493 JP2016000493W WO2016166923A1 WO 2016166923 A1 WO2016166923 A1 WO 2016166923A1 JP 2016000493 W JP2016000493 W JP 2016000493W WO 2016166923 A1 WO2016166923 A1 WO 2016166923A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rail body
- orifice member
- rail
- direct injection
- inlet portion
- Prior art date
Links
Images
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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
-
- 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
- F02M2200/05—Fuel-injection apparatus having means for preventing corrosion
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
-
- 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
- F02M2200/9053—Metals
-
- 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
- F02M2200/9053—Metals
- F02M2200/9076—Non-ferrous metals
-
- 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
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a gasoline direct injection rail.
- gasoline direct injection rails are often made of stainless steel with excellent corrosion resistance.
- stainless steel gasoline direct injection rails may cause stress corrosion cracking when placed in a chlorine atmosphere or when the fuel contains a corrosive medium such as chlorine.
- the present invention is intended to solve the above-described problems, and can easily and reliably perform the plating process inside the rail body and the inlet part, and is provided with an orifice and has excellent mechanical characteristics.
- a direct injection rail is to be obtained.
- the present invention solves the problems as described above, and includes a rail body made of steel and a communication passage provided integrally or separately at one end of the rail body and communicating with the fuel passage of the rail body.
- a stainless steel orifice member formed separately from the rail body is fixedly disposed in the communication passage of the inlet portion. It is a thing.
- the orifice member may be screwed and fixed to the communication path of the inlet portion.
- the orifice member can be firmly fixed to the inlet portion by screwing and fixing the orifice member to the inlet portion.
- the orifice member can be easily fixed to the inlet portion.
- there is no concern about dust derived from the adhesive there is no problem of contamination between the adhesive and the fuel.
- a stainless steel orifice member formed separately from the inlet portion is screwed and fixed to the communication passage of the inlet portion provided in the steel rail body. Therefore, by plating the rail body provided with the inlet part before the orifice member is fixedly disposed on the inlet part, there is no orifice in the inlet part and the rail body, so that the plating solution is introduced into the inlet part and the rail body. It is possible to easily flow in and out, and the plating process can be easily performed. Further, since the orifice member is made of stainless steel, it is not necessary to perform the plating process, and the problem of the plating process for the small-diameter orifice, which has been a problem in the past, does not occur. In addition, since the rail body is made of steel, there are many variations in strength, and products with better mechanical properties than stainless steel can be obtained for higher system pressure in the future.
- FIG. The partial expanded sectional view before the orifice member assembly
- FIG. The partial expanded sectional view after the orifice member assembly
- FIG. The partial expanded sectional view before the orifice member assembly
- Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2.
- (1) is an orifice member formed of a stainless steel material.
- the orifice member (1) is formed in a cylindrical shape having an orifice (2) in the length direction, and an outer peripheral screw groove (3) is provided on the outer peripheral surface thereof as shown in FIG. .
- the rail body (4) of the gasoline direct injection rail has an inlet (6) formed separately from the rail body (4) at one end (5).
- the inlet portion (6) is formed separately from the rail body (4) and fixed to one end (5) of the rail body (4).
- the inlet portion (6) may be formed integrally with the rail body (4).
- the rail body (4) and the inlet part (6) are made of steel.
- a plurality of injector holders (not shown) communicating with the fuel passages of the rail body (4) are connected to the rail body (4) of the present embodiment at equal intervals in the length direction.
- a communication passage (7) is provided in the inlet portion (6).
- the main body (4) communicates with a fuel passage (not shown).
- the inlet (6) has a large diameter on the side of the opening (8), which is continuous with the communication path (7), on the side of the opening (8) of the communication path (7).
- a tapered portion (10) having a small diameter on the opposite side to 8) is formed.
- the communication passage (7) is provided with a mounting hole (11) for assembling the orifice member (1).
- An inner circumferential groove (12) that can be screwed into the outer circumferential groove (3) of the orifice member (1) is provided on the inner circumferential surface of the mounting hole (11).
- the rail body (4) and the inlet part (6) are made of steel, plating is required. Therefore, before the orifice member (1) is screwed and fixed to the inlet portion (6), the rail body (4) assembled with the inlet portion (6) is plated. At this time, since the orifice is not provided in the inlet part (6) of the rail body (4) as in the conventional product, the plating solution surely flows into and out of the rail body (4) and the inlet part (6). Is possible. Therefore, the inner peripheral plating process of the rail body (4) and the inlet part (6) can be easily and reliably performed.
- the orifice member (1) is screwed and fixed to the mounting portion of the inlet portion (6) plated as described above.
- the orifice member (1) can be firmly fixed to the inlet portion (6) by screwing and fixing the orifice member (1) to the inlet portion (6).
- the positioning of the orifice member (1) to the inlet portion (6) can be facilitated, and the orifice member (1) can be easily fixed and arranged on the inlet portion (6).
- the orifice member (1) is fixed to the inlet portion (6) with an adhesive, there is no concern about dust derived from the adhesive, and there is also a problem of contamination between the adhesive and the fuel. There is no.
- a screwing portion (13) that does not form the inner peripheral thread groove (12) is provided on the side of the communication passage (7) of the mounting hole (11) of the inlet portion (6). Therefore, when the orifice member (1) is screwed and fixed to the inlet portion (6), the orifice member (1) is screwed by the screw portion (13). There is no need to worry about the stop position, and the work can be performed smoothly.
- the screwing portion (13) as described above is provided.
- the inner side of the mounting hole (11) on the side of the communication path (7) is provided.
- An inner peripheral step (14) is provided around the periphery, and the inner peripheral step (14) is used as a screwing portion (13), or an outer peripheral protrusion (1) is formed on one end outer periphery of the orifice member (1) as shown in FIGS. 15) can be provided, and the outer peripheral projection (15) can be used as a screwing portion (13).
- the orifice member (1) is formed of a stainless steel as described above, it is not necessary to perform a plating process on the orifice member (1). Therefore, there is no problem that the plating solution is difficult to flow in and out during the plating process on the orifice (2), which has been a problem in the past.
- the rail body (4) and inlet section (6) are made of steel, there are a wide variety of strengths, and products with better mechanical properties than stainless steel can be obtained for higher pressure in future systems. Can do.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Pipe Accessories (AREA)
Abstract
Description
4 レール本体
5 一端
6 インレット部
7 連通路
Claims (2)
- 鉄鋼製のレール本体と、このレール本体の一端に一体又は別体に設けるとともに内部に上記レール本体の燃料通路に連通する連通路を備えたインレット部と、上記燃料通路に連通する複数のインジェクタホルダーとを備えたガソリン直噴レールにおいて、上記インレット部の連通路に、レール本体とは別体に形成したステンレス製のオリフィス部材を固定配置したことを特徴とするガソリン直噴レール。
- オリフィス部材は、インレット部の連通路に螺着固定したことを特徴とする請求項1のガソリン直噴レール。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16779723.2A EP3284945B1 (en) | 2015-04-15 | 2016-02-01 | Gasoline direct injection rail |
RU2017134460A RU2674862C1 (ru) | 2015-04-15 | 2016-02-01 | Топливная рампа непосредственного впрыска |
MX2017013234A MX2017013234A (es) | 2015-04-15 | 2016-02-01 | Riel de inyeccion directa de gasolina. |
KR1020177029225A KR102007593B1 (ko) | 2015-04-15 | 2016-02-01 | 가솔린 직접 분사 레일 |
BR112017021713-9A BR112017021713A2 (ja) | 2015-04-15 | 2016-02-01 | Gasoline direct injection rail |
US15/559,829 US10655584B2 (en) | 2015-04-15 | 2016-02-01 | Gasoline direct injection rail |
CN201680021469.0A CN107429647A (zh) | 2015-04-15 | 2016-02-01 | 汽油直喷轨 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015083009A JP6546771B2 (ja) | 2015-04-15 | 2015-04-15 | ガソリン直噴レール |
JP2015-083009 | 2015-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016166923A1 true WO2016166923A1 (ja) | 2016-10-20 |
Family
ID=57125723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/000493 WO2016166923A1 (ja) | 2015-04-15 | 2016-02-01 | ガソリン直噴レール |
Country Status (9)
Country | Link |
---|---|
US (1) | US10655584B2 (ja) |
EP (1) | EP3284945B1 (ja) |
JP (1) | JP6546771B2 (ja) |
KR (1) | KR102007593B1 (ja) |
CN (1) | CN107429647A (ja) |
BR (1) | BR112017021713A2 (ja) |
MX (1) | MX2017013234A (ja) |
RU (1) | RU2674862C1 (ja) |
WO (1) | WO2016166923A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111527301B (zh) * | 2017-12-14 | 2022-04-12 | 瓦锡兰芬兰有限公司 | 活塞发动机 |
RU2737571C1 (ru) * | 2020-08-11 | 2020-12-01 | Евгений Викторович Горбачевский | Топливный аккумулятор и способ управления волновыми явлениями в линии высокого давления аккумуляторной топливной системы двигателей внутреннего сгорания |
US11692521B2 (en) | 2021-09-08 | 2023-07-04 | Robert Bosch Gmbh | Fitting connection assembly for a fluid delivery system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08114160A (ja) * | 1994-08-25 | 1996-05-07 | Nippondenso Co Ltd | 内燃機関用燃料供給装置 |
JP2003049741A (ja) * | 2001-08-07 | 2003-02-21 | Otics Corp | コモンレール |
JP2007247641A (ja) * | 2006-02-20 | 2007-09-27 | Denso Corp | コモンレール |
JP2014047671A (ja) * | 2012-08-30 | 2014-03-17 | Otics Corp | デリバリパイプ |
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US5845621A (en) * | 1997-06-19 | 1998-12-08 | Siemens Automotive Corporation | Bellows pressure pulsation damper |
DE19853090A1 (de) * | 1998-11-18 | 2000-05-25 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
DE19936533A1 (de) * | 1999-08-03 | 2001-02-15 | Bosch Gmbh Robert | Kraftstoffhochdruckspeicher |
JPWO2003008796A1 (ja) * | 2001-07-16 | 2004-11-11 | 臼井国際産業株式会社 | 燃料圧力脈動抑制システム |
JP3856206B2 (ja) * | 2001-11-06 | 2006-12-13 | 株式会社デンソー | 蓄圧容器およびその製造方法 |
US6905002B2 (en) * | 2002-06-21 | 2005-06-14 | International Engine Intellectual Property Company, Llc | Acoustic wave attenuator for a rail |
JP2004036441A (ja) * | 2002-07-02 | 2004-02-05 | Otics Corp | コモンレールの製造方法 |
CN100412352C (zh) * | 2004-06-17 | 2008-08-20 | 臼井国际产业株式会社 | 内燃机燃料轨内的歧管连接结构及歧管制造方法 |
US7516734B2 (en) | 2006-01-20 | 2009-04-14 | Denso Corporation | Common rail having orifice |
DE102006003639A1 (de) * | 2006-01-26 | 2007-08-02 | Robert Bosch Gmbh | Hochdruckspeicherkörper mit integriertem Verteilerblock |
JP2007285213A (ja) * | 2006-04-18 | 2007-11-01 | Toyota Motor Corp | 圧入構造及びその圧入構造を備えたコモンレール |
KR20100033785A (ko) * | 2008-09-22 | 2010-03-31 | 이선순 | 자동차용 연료공급장치의 맥동감쇄기능을 갖는 연료레일의 구조 및 연료레일의 제조방법 |
JP2011052606A (ja) * | 2009-09-02 | 2011-03-17 | Otics Corp | フューエルデリバリパイプ及びその製造方法 |
JP2012097690A (ja) | 2010-11-04 | 2012-05-24 | Otics Corp | フューエルデリバリパイプ |
DE102011075059A1 (de) * | 2011-05-02 | 2012-11-08 | Robert Bosch Gmbh | Brennstoffverteiler |
US20130001891A1 (en) * | 2011-06-29 | 2013-01-03 | Caterpillar Inc. | Sealing assembly |
JP5823336B2 (ja) * | 2012-04-04 | 2015-11-25 | 株式会社オティックス | 燃料分配管 |
KR20130138610A (ko) * | 2012-06-11 | 2013-12-19 | 현대자동차주식회사 | 가솔린 직접 분사식 엔진용 고압 연료레일 장치 및 이의 제조방법 |
-
2015
- 2015-04-15 JP JP2015083009A patent/JP6546771B2/ja active Active
-
2016
- 2016-02-01 EP EP16779723.2A patent/EP3284945B1/en active Active
- 2016-02-01 US US15/559,829 patent/US10655584B2/en active Active
- 2016-02-01 WO PCT/JP2016/000493 patent/WO2016166923A1/ja active Application Filing
- 2016-02-01 KR KR1020177029225A patent/KR102007593B1/ko active IP Right Grant
- 2016-02-01 BR BR112017021713-9A patent/BR112017021713A2/ja not_active Application Discontinuation
- 2016-02-01 MX MX2017013234A patent/MX2017013234A/es unknown
- 2016-02-01 CN CN201680021469.0A patent/CN107429647A/zh active Pending
- 2016-02-01 RU RU2017134460A patent/RU2674862C1/ru active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08114160A (ja) * | 1994-08-25 | 1996-05-07 | Nippondenso Co Ltd | 内燃機関用燃料供給装置 |
JP2003049741A (ja) * | 2001-08-07 | 2003-02-21 | Otics Corp | コモンレール |
JP2007247641A (ja) * | 2006-02-20 | 2007-09-27 | Denso Corp | コモンレール |
JP2014047671A (ja) * | 2012-08-30 | 2014-03-17 | Otics Corp | デリバリパイプ |
Also Published As
Publication number | Publication date |
---|---|
BR112017021713A2 (ja) | 2018-07-10 |
US20180051665A1 (en) | 2018-02-22 |
JP2016205135A (ja) | 2016-12-08 |
EP3284945A4 (en) | 2018-12-12 |
CN107429647A (zh) | 2017-12-01 |
US10655584B2 (en) | 2020-05-19 |
RU2674862C1 (ru) | 2018-12-13 |
JP6546771B2 (ja) | 2019-07-17 |
MX2017013234A (es) | 2018-03-01 |
KR102007593B1 (ko) | 2019-08-05 |
EP3284945B1 (en) | 2020-04-29 |
EP3284945A1 (en) | 2018-02-21 |
KR20170125964A (ko) | 2017-11-15 |
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