JPS63143382A - Fuel injector for internal combustion piston engine - Google Patents
Fuel injector for internal combustion piston engineInfo
- Publication number
- JPS63143382A JPS63143382A JP29592987A JP29592987A JPS63143382A JP S63143382 A JPS63143382 A JP S63143382A JP 29592987 A JP29592987 A JP 29592987A JP 29592987 A JP29592987 A JP 29592987A JP S63143382 A JPS63143382 A JP S63143382A
- Authority
- JP
- Japan
- Prior art keywords
- head
- combustion chamber
- fuel injection
- nozzle
- cylinder
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 27
- 238000002485 combustion reaction Methods 0.000 title claims description 20
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- 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
- F02M61/166—Selection of particular materials
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、少なくとも１つのシリンダを伴ない、そのシ
リンダはシリンダヘッドにより閉鎖されその中にシリン
ダヘッドと共に燃焼室を形成する可動なピストンを有す
る、内燃ピストンエンジンのための燃料噴射装置に係り
、詳しくは、燃料供給装置とつながり、シリンダヘッド
内の通路に位置し燃焼室内へ延在する頭部を備えるノズ
ル部材を有し、また燃焼室内へ方向付けられた燃料噴気
を形成するように作用する少なくとも１つのノズルオリ
フィスを有する燃料噴射バルブを少なくとも１つ有する
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is for an internal combustion piston engine, comprising at least one cylinder, which cylinder is closed by a cylinder head and has a movable piston therein, which together with the cylinder head forms a combustion chamber. It relates to a fuel injection device, and more particularly, it has a nozzle member that is connected to a fuel supply device, is located in a passage in a cylinder head, and has a head that extends into a combustion chamber, and which directs fuel jets into the combustion chamber. The present invention relates to a device having at least one fuel injection valve having at least one nozzle orifice operative to form the same.
前記のタイプの既知の装置に於いては、ノズルオリフィ
スを含むノズル部材の頭部は、鉄鋼系の合金製であり、
内燃エンジンの運転中、腐食老化による重大な摩耗にさ
らされる。使用される燃料の種類や成分により（特に常
に重油で運転されるヂーゼルエンジンについては）、燃
焼室内の高温で溶融し、燃えカスとなるような燃料の不
燃成分は、燃焼室内に突き出ている噴射バルブの頭部を
損傷させる可能性がある。In known devices of the type mentioned above, the head of the nozzle member, including the nozzle orifice, is made of a steel-based alloy;
During operation of an internal combustion engine, it is exposed to significant wear due to corrosive aging. Depending on the type and composition of the fuel used (particularly for diesel engines that are always operated on heavy oil), the non-flammable components of the fuel, which melt at high temperatures in the combustion chamber and become scum, are removed from the injection jet protruding into the combustion chamber. May damage the valve head.
本発明に於いては、燃焼室内に突き出ている燃料噴射バ
ルブの頭部の摩耗を、飛躍的に減少させるか又は完全に
防止するように、前記装置の燃料噴射バルブを改良する
ものである。In the present invention, the fuel injection valve of the device is improved in such a way that the wear of the fuel injection valve head protruding into the combustion chamber is dramatically reduced or completely eliminated.
本発明に於いて、製造上不可避な不純物は別として２〜
１０％のアルミニウム、０〜５５％のニオブ、０〜１０
％のジルコニウム、０〜６％のモリブデン、０〜１％の
シリコン、０〜１０％のタンタルを含有する、チタン基
合金を、ノズル頭部に用いる事により該問題点を解決し
ようとするものである。In the present invention, apart from impurities unavoidable during manufacturing, 2 to
10% aluminum, 0-55% niobium, 0-10
The aim is to solve this problem by using a titanium-based alloy for the nozzle head, which contains % zirconium, 0-6% molybdenum, 0-1% silicon, and 0-10% tantalum. be.
チタン合金は、エンジン運転中に、耐腐食性の不透過性
で不活性な層を、良好な結合強度で形成する為、実地の
テストに於いて、チタン基合金により作られた頭部は、
鉄鋼系合金により作られた頭部に比し、耐高温腐食性が
大巾に優れている。In field tests, heads made from titanium-based alloys have shown that titanium alloys form a corrosion-resistant impermeable and inert layer with good bond strength during engine operation.
Compared to heads made of steel-based alloys, it has far superior high-temperature corrosion resistance.
結果として、頭部の摩耗は鉄鋼系合金により作られたそ
れに比し非常に少なくなり、頭部の寿命は大巾に良くな
る。この為、頭部を交換する為に燃料噴射バルブを分解
する必要は非常にまれとなり、エンジンの耐用期間が増
加する。As a result, the wear on the head is much less than that made of steel-based alloys, and the life of the head is greatly improved. This makes it very rare to have to disassemble the fuel injection valve to replace the head, increasing the service life of the engine.
以下、本発明の一実施例について第１図にもとづいて説
明する。第１図は、燃料噴射バルブの一部分の、中心軸
に関する断面図である。An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a sectional view of a portion of the fuel injection valve with respect to the central axis.
デービルエンジンの燃料噴射システムは、シリンダ２内
に於いて往復運動するピストン３と共に燃焼室４を形成
するシリンダヘッド１と、一般に５で示される燃料噴射
バルブを備えている。燃料噴射バルブ５は、この実施例
では、部分６，７゜８、並びに９から作られたハウジン
グ状のノズル部材を有している。上方の部分６は、連結
ナツト１ｏにねじ込まれるネジの切られた肩部６′を有
し、連結ナツト１ｏは、部分６から９を一緒に保持して
いる。上方部分６内の中心穴１１は、ロッド１２を収容
し、ロッド１２の上端（図示されていない）は、圧縮バ
ネにより押され、下端はバルブニードル１３と接触して
いる。バルブニードル１３は、部分６と隣接する部分７
内の穴２２に案内されている。部分７の下部に於いて、
穴２２は、円錐状バルブ座面１４を形成し、該座面は、
バルブニードル１３の対応する円錐状下端と共同作用す
る。座面１４上部に於いて、部分７は、室１５を備え、
そこへ燃料供給装置（図示されていない）からの燃料が
、部分７並びに部分６内の穴１６並びに穴１７を経て高
圧で送り込まれる。The fuel injection system of the Devil engine includes a cylinder head 1 which, together with a piston 3 that reciprocates within a cylinder 2, defines a combustion chamber 4, and a fuel injection valve, generally designated 5. In this embodiment, the fuel injection valve 5 has a housing-like nozzle element made up of parts 6, 7, 8, and 9. The upper part 6 has a threaded shoulder 6' which is screwed onto a connecting nut 1o, which holds the parts 6 to 9 together. A central hole 11 in the upper part 6 accommodates a rod 12 whose upper end (not shown) is pressed by a compression spring and whose lower end is in contact with a valve needle 13 . The valve needle 13 has a portion 7 adjacent to the portion 6.
It is guided to the inner hole 22. At the bottom of section 7,
The hole 22 forms a conical valve seat 14, which seat
It cooperates with the corresponding conical lower end of the valve needle 13. In the upper part of the seat surface 14, the portion 7 includes a chamber 15,
Fuel from a fuel supply device (not shown) is fed into it at high pressure via holes 16 and 17 in section 7 and section 6.
部分７の下部は、スリーブ状の部分８に囲まれ部分８は
その下端において内側に突き出る肩部１８を形成し、部
分９はフランジ部９′により肩部１８に接している。部
分９は、噴射バルブ５の頭部を形成し、部分７内の穴２
２と連通しその底端に於いて閉鎖されている中心穴２０
を有している。The lower part of the part 7 is surrounded by a sleeve-like part 8, which forms at its lower end an inwardly projecting shoulder 18, and the part 9 abuts the shoulder 18 by a flange part 9'. Part 9 forms the head of the injection valve 5 and the hole 2 in part 7
a central hole 20 communicating with 2 and closed at its bottom end;
have.
頭部９の下部は燃焼室４内に突き出し、複数個のノズル
穴２１を備え、ノズル穴のそれぞれは、燃焼室４内へ噴
射される燃料噴気を形成するように作用する。頭部９と
、これを囲む部分８の間には、焼きばめが行なわれる事
が有る。The lower part of the head 9 protrudes into the combustion chamber 4 and is provided with a plurality of nozzle holes 21, each of which serves to form a fuel jet to be injected into the combustion chamber 4. A shrink fit is sometimes performed between the head 9 and the portion 8 surrounding it.
頭部９は例えば次の様な構成のチタン基合金より作られ
る。６％のアルミニウム５％のジルコニウム、０．５％
のモリブデン、０．２５％のシリコンで、残部チタン。The head 9 is made of, for example, a titanium-based alloy having the following structure. 6% aluminum 5% zirconium, 0.5%
Molybdenum, 0.25% silicon, balance titanium.
このようなチタン合金により作られた頭部により、耐高
温腐食性に関し、非常に良好な結果が得られ、これによ
り、頭部の寿命は、鉄鋼系合金より作られた頭部のそれ
に比し、大巾に長寿命となる。Heads made from such titanium alloys give very good results in terms of high temperature corrosion resistance, which results in a head life that is longer than that of heads made from steel-based alloys. , it has a long lifespan.
良好な結果をもたらすその他のチタン基合金は、次の様
なものである。Other titanium-based alloys that have yielded good results include:
ａ） ６％アルミニウム、７％ニオブ、残部チタン。a) 6% aluminum, 7% niobium, balance titanium.
ｂ） ６％アルミニウム、６％ニオブ、１％タンタル
、残部チタン。b) 6% aluminum, 6% niobium, 1% tantalum, balance titanium.
内燃エンジンの運転中、燃料は穴１７および１６を経て
、空間１５に、例えば８１６Ｋｇ／ｃｍ２（８００ｂａ
ｒｓ）の圧力で、パルス状に送り込まれる。これにより
、バルブニードル１３は、その座面１４から、ロッド１
２に作用するバネにより行使される封止圧に抗して、浮
上する。それ故、燃料は頭部９内の穴２ｏを経て、ノズ
ルオリフィス２１に至り、そこから噴気状となって、圧
縮空気の充満した燃焼室４へ入る。バルブニードル１３
の浮上量は、約１．２Ｍである。During operation of the internal combustion engine, fuel passes through the holes 17 and 16 into the space 15 at a rate of, for example, 816 kg/cm2 (800 ba
It is fed in a pulsed manner at a pressure of rs). This causes the valve needle 13 to move from its seat surface 14 to the rod 1.
2 floats against the sealing pressure exerted by the spring acting on it. Therefore, the fuel passes through the hole 2o in the head 9 and reaches the nozzle orifice 21, from where it enters the combustion chamber 4 filled with compressed air in the form of a jet. Valve needle 13
The flying height is approximately 1.2M.
２図面は、燃料噴射バルブの一部分の、中心軸に関する
断面図である。
１・・・シリンダヘッド、２・・・シリンダ、３・・・
ピストン、４・・・燃焼室、５・・・燃料噴射バルブ、
６・・・上方部分、７・・・中間部分、８・・・下方部
分、９・・・頭部、１０・・・連結ナツト、１１・・・
中心穴、１２・・・ロッド、１３・・・バルブニードル
、１４・・・円錐状バルブ座面、１５・・・空間、１６
・・・穴、１７・・・穴、１８・・・肩部、２０・・・
中心穴、２１・・・ノズル穴、２２・・・穴。2 is a sectional view of a portion of the fuel injection valve with respect to the central axis. 1... Cylinder head, 2... Cylinder, 3...
Piston, 4... Combustion chamber, 5... Fuel injection valve,
6... Upper part, 7... Middle part, 8... Lower part, 9... Head, 10... Connection nut, 11...
Center hole, 12... Rod, 13... Valve needle, 14... Conical valve seat, 15... Space, 16
... Hole, 17... Hole, 18... Shoulder, 20...
Center hole, 21... nozzle hole, 22... hole.
Claims (2)
ダはシリンダヘツドにより閉鎖されその中にシリンダヘ
ツドと共に燃焼室を形成する可動なピストンを有する内
燃ピストンエンジンのための燃料噴射装置にして、燃料
供給装置とつながり、シリンダヘツド内の通路に位置し
燃焼室内へ延在する頭部を備えるノズル部材を有し、ま
た燃焼室内へ方向付けられた燃料噴気を形成するように
作用する少なくとも１つのノズルオリフイスを有する燃
料噴射バルブを少なくとも一つ有する該燃料噴射装置に
於いて、そのノズル頭部はチタン基合金製であり、該チ
タン基合金は製造上避けられない不純物は別として２〜
１０％のアルミニウム、０〜５５％のニオブ、０〜１０
％のジルコニウム、０〜６％のモリブデン、０〜１％の
シリコン、０〜１０％のタンタルを含有することを特徴
とする燃料噴射装置。(1) A fuel injection device and fuel supply device for an internal combustion piston engine with at least one cylinder, the cylinder being closed by a cylinder head and having a movable piston therein forming a combustion chamber with the cylinder head. a nozzle member having a head communicating with the cylinder head and extending into the combustion chamber, the nozzle member having a head located in the passageway in the cylinder head and extending into the combustion chamber, and at least one nozzle orifice operative to form a jet of fuel directed into the combustion chamber. In the fuel injection device having at least one fuel injection valve, the nozzle head is made of a titanium-based alloy, and the titanium-based alloy contains 2 to
10% aluminum, 0-55% niobium, 0-10
% zirconium, 0-6% molybdenum, 0-1% silicon, and 0-10% tantalum.
取りはずされ得るような部材となつていることを特徴と
する特許請求の範囲第１項による装置。(2) A device according to claim 1, characterized in that the nozzle head is a member that can be removed from the nozzle member of the fuel injection valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH472086A CH671074A5 (en) | 1986-11-25 | 1986-11-25 | |
| CH04720/86-2 | 1986-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63143382A true JPS63143382A (en) | 1988-06-15 |
Family
ID=4281336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29592987A Pending JPS63143382A (en) | 1986-11-25 | 1987-11-24 | Fuel injector for internal combustion piston engine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0268811A1 (en) |
| JP (1) | JPS63143382A (en) |
| CH (1) | CH671074A5 (en) |
| DK (1) | DK489287A (en) |
| FI (1) | FI874355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561653A (en) * | 2013-10-11 | 2015-04-29 | 东港市东方高新金属材料有限公司 | Titanium alloy No. dfgx-11 rolled tube and preparation method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569655B1 (en) * | 1992-05-11 | 1996-01-24 | New Sulzer Diesel AG | Injection nozzle for a fuel injection device |
| CN108893628B (en) * | 2018-08-03 | 2019-11-12 | 中鼎特金秦皇岛科技股份有限公司 | A kind of low elastic modulus erosion resistant titanium alloy and preparation method thereof |
| CN112176219A (en) * | 2020-09-28 | 2021-01-05 | 哈尔滨工业大学 | Ti-Al-Nb-Zr-Mo corrosion-resistant titanium alloy and preparation method thereof |
| CN117157423A (en) | 2020-10-15 | 2023-12-01 | 康明斯公司 | Fuel system component |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779782A (en) * | 1933-10-19 | 1935-04-12 | & Commerciale Des Aciers Soc I | Carbide fuel nozzles for internal combustion engines, in particular for diesel engines |
| GB450522A (en) * | 1934-10-13 | 1935-04-23 | Tool Metal Mfg Company Ltd | Improvements in and relating to fuel nozzles for internal combustion engines |
| GB885627A (en) * | 1959-09-15 | 1961-12-28 | Goetaverken Ab | Improvements in fuel injection valves for internal combustion engines |
| DE2932433A1 (en) * | 1979-08-10 | 1981-02-26 | Bosch Gmbh Robert | Fuel injection needle valve - has needle in titanium or titanium alloy, heat treated in salt bath for improved wear resistance |
-
1986
- 1986-11-25 CH CH472086A patent/CH671074A5/de not_active IP Right Cessation
-
1987
- 1987-09-17 DK DK489287A patent/DK489287A/en not_active Application Discontinuation
- 1987-10-05 FI FI874355A patent/FI874355A/en not_active Application Discontinuation
- 1987-10-16 EP EP87115163A patent/EP0268811A1/en not_active Withdrawn
- 1987-11-24 JP JP29592987A patent/JPS63143382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561653A (en) * | 2013-10-11 | 2015-04-29 | 东港市东方高新金属材料有限公司 | Titanium alloy No. dfgx-11 rolled tube and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DK489287A (en) | 1988-05-26 |
| CH671074A5 (en) | 1989-07-31 |
| FI874355A0 (en) | 1987-10-05 |
| DK489287D0 (en) | 1987-09-17 |
| EP0268811A1 (en) | 1988-06-01 |
| FI874355A (en) | 1988-05-26 |
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