JPH022655B2 - - Google Patents
Info
- Publication number
- JPH022655B2 JPH022655B2 JP58224407A JP22440783A JPH022655B2 JP H022655 B2 JPH022655 B2 JP H022655B2 JP 58224407 A JP58224407 A JP 58224407A JP 22440783 A JP22440783 A JP 22440783A JP H022655 B2 JPH022655 B2 JP H022655B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- burnishing
- hole
- guide hole
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 29
- 239000000446 fuel Substances 0.000 claims description 25
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000005553 drilling Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 238000007517 polishing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
- F02M51/0678—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages all portions having fuel passages, e.g. flats, grooves, diameter reductions
Description
【発明の詳細な説明】
本発明は、燃料噴射弁本体と、その燃料噴射弁
本体に内設された電磁コイルにより固定コアに磁
気吸引される可動コアと、先端に弁体が形成され
て前記可動コアに取付けられる弁棒と、その弁棒
を内挿すべく前記燃料噴射弁本体の先端側に取付
けられる弁座形成体とを含む燃料噴射弁におけ
る、前記弁座形成体を加工するための方法に関す
る。Detailed Description of the Invention The present invention comprises a fuel injection valve body, a movable core that is magnetically attracted to a fixed core by an electromagnetic coil installed in the fuel injection valve body, and a valve body formed at the tip. A method for processing a valve seat forming body in a fuel injection valve including a valve stem attached to a movable core and a valve seat forming body attached to the front end side of the fuel injection valve body to insert the valve stem. Regarding.
この種弁座形成体は、第１図に示す如く弁棒の
開閉変位を案内する案内孔ｂと、該案内孔ｂの先
端側に連設される弁座ｃと、該弁座ｃに連設され
る燃料吐出孔ｄとを備えるもので、この場合従来
は、弁座形成体ａの素材に穿設する案内孔ｂと弁
座ｃの各下孔b′，c′に研摩仕上げを施して該案内
孔ｂと該弁座ｃのシート面ｅとを形成するを一般
とし、即ち案内孔ｂの下孔b′を、図示の如く案内
孔ｂの軸線に合わせた公転軸l1の回りにこれと平
行な自転軸l2を中心にして自転させつつ公転させ
る砥石部材ｆを用いて研摩し、これとは形状の異
る別の砥石部材を用いて弁座ｃのシート面ｅの研
摩仕上げを施すようにしており、これによれば以
下の欠点を生ずる。 As shown in Fig. 1, this type of valve seat forming body includes a guide hole b that guides the opening and closing displacement of the valve stem, a valve seat c that is connected to the tip side of the guide hole b, and a valve seat c that is connected to the valve seat c. In this case, conventionally, the guide hole b drilled in the material of the valve seat forming body a and the pilot holes b' and c' of the valve seat c are polished. Generally, the guide hole b and the seat surface e of the valve seat c are formed by forming the guide hole b and the seat surface e of the valve seat c. Grind the seat surface e of the valve seat c using a grindstone member f that rotates and revolves around the rotation axis l2 parallel to this, and use another grindstone member with a different shape. However, this method has the following drawbacks.
１ 研摩加工を行なうに当つては、周知のよう
に、研摩すべき表面を硬質にしておくことが望
まれ、したがつて研摩加工前すなわち下孔加工
工程と研摩加工工程との間に焼入れ行程が行な
われる。そのため、下孔加工後、弁座形成体ａ
の素材を、一且治具から取外して焼入れし、さ
らにその後、研摩加工のために前記素材を再び
治具へ取付けなければならず、そのため治具へ
の着脱作業が面倒である。1. When performing polishing, as is well known, it is desirable to keep the surface to be polished hard, and therefore a quenching process is carried out before polishing, that is, between the pilot hole drilling process and the polishing process. will be carried out. Therefore, after drilling the pilot hole, the valve seat forming body a
It is necessary to remove the material from the jig and harden it, and then attach the material to the jig again for polishing, which makes the work of attaching and detaching it to the jig cumbersome.
２ 上記欠点(1)に関連して、治具からの着脱が繰
り返される場合には、下孔加工に使用される穿
孔具（たとえば回転ドリル）の回転軸線と、砥
石部材の回転軸線（l1に相当）との同芯度が低
下し、そのため案内孔部分b′およびシート面ｅ
が全面にわたつて一様に研摩されないおそれが
ある。2 In relation to the above drawback (1), when the jig is repeatedly attached and detached, the rotational axis of the drilling tool (for example, a rotary drill) used for drilling the pilot hole and the rotational axis of the grindstone member (l 1 ) and the concentricity with the guide hole b′ and the seat surface e
may not be polished uniformly over the entire surface.
３ 研摩仕上げでは、研摩代Ｄを比較的大きく必
要とし、従つて砥石部材ｆの取付位置に、例え
ば公転軸l1に対する自転軸l2の位置の狂い等に
より僅かでも誤差を生ずると、案内孔ｂの均一
な研摩仕上げが得られなくなる。3. Polishing requires a relatively large polishing allowance D, and therefore, if there is even a slight error in the mounting position of the grindstone member f, for example due to a misalignment of the rotation axis l 2 with respect to the revolution axis l 1 , the guide hole It becomes impossible to obtain the uniform polishing finish of b.
４ 砥石部材ｆの先端側は摩耗損を生じ易く、そ
のため砥石部材ｆの先端側で研摩される案内孔
ｂの先端部分に、研摩代Ｄと関連して鋭利なバ
リｇが発生し、従つてこれを防止すべく下孔
b′に先端部分の逃げ溝ｈを予め切削加工してお
く必要があり、手数がかかる。4. The tip side of the grindstone member f is prone to wear and tear, and therefore, a sharp burr g is generated in relation to the grinding allowance D at the tip of the guide hole b that is polished on the tip side of the grindstone member f, and therefore In order to prevent this,
It is necessary to cut a clearance groove h at the tip of b' in advance, which is time-consuming.
５ 上記逃げ溝ｈにより、弁座形成体ａ内に燃料
溜り部分が出来、これによる流速の低下によつ
て燃料吐出に悪影響が及ぶ。5. The escape groove h creates a fuel reservoir within the valve seat forming body a, and the resulting decrease in flow velocity has an adverse effect on fuel discharge.
６ 上記(4)の欠点に関連して、逃げ溝ｈの切削加
工により生じた切削屑が残留すると、燃料吐出
孔ｄの閉塞又は燃料洩れ等の原因となるため、
洗浄を充分に行わねばならず面倒であり、又完
全に切削屑を除去することが難しく、燃料噴射
量のばらつきや性能変化の大きな要因となる。6 In relation to the drawback of (4) above, if the cutting debris generated by cutting the relief groove h remains, it may cause blockage of the fuel discharge hole d or fuel leakage, etc.
Cleaning must be thoroughly performed, which is troublesome, and it is difficult to completely remove cutting debris, which is a major cause of variations in fuel injection amount and performance changes.
本発明は、上述の技術的課題を解決すべく、研
摩加工による表面仕上げに代えて、バニシング仕
上げを行なうようにし、さらに加工手順を下孔加
工工程−バニシング工程−焼入れ工程とし、且つ
バニシング工程において、下孔加工工程で用いる
治具に素材を固定したまま案内孔用と弁座用の１
対のバニシング面を有するバニシング工具を用い
て案内孔と弁座を同時にバニシング仕上げするよ
うにしたところに特徴を有し、その目的とすると
ころは、加工作業性を向上させ、しかも電子式燃
料噴射装置に好適な高精度の燃料噴射弁を提供す
ることである。 In order to solve the above-mentioned technical problems, the present invention performs burnishing instead of surface finishing by polishing, furthermore, the processing procedure is a pilot hole drilling process - burnishing process - quenching process, and in the burnishing process, , one for the guide hole and one for the valve seat while the material is fixed on the jig used in the pilot hole machining process.
The feature is that the guide hole and valve seat are burnished at the same time using a burnishing tool with a pair of burnishing surfaces. It is an object of the present invention to provide a highly accurate fuel injection valve suitable for a device.
以下図面によつて本発明の実施例を説明する。
第２図を参照して、１は燃料噴射弁本体、２は該
本体１に内設された電磁コイルを示し、該電磁コ
イル２の内側に固定コア３とその軸線方向先方に
ばね４を介して可動コア５とを配置し、該可動コ
ア５に先端の弁体６を有する弁棒７をその尾端部
において結合し、該弁棒７を該本体１の先端側に
取付けられる弁座形成体８に内挿した。 Embodiments of the present invention will be described below with reference to the drawings.
Referring to FIG. 2, reference numeral 1 indicates a fuel injection valve main body, and reference numeral 2 indicates an electromagnetic coil installed inside the main body 1. Inside the electromagnetic coil 2, a fixed core 3 and a spring 4 are arranged in the axial direction. A valve seat is formed in which a movable core 5 is arranged, a valve stem 7 having a valve body 6 at the tip is coupled to the movable core 5 at its tail end, and the valve stem 7 is attached to the tip side of the main body 1. Interpolated into body 8.
該弁座形成体８は、軸線方向にのびる案内孔９
と、該案内孔９の先端側に連設される弁座１０
と、該弁座１０に連設される燃料吐出孔１１とを
備えるもので、該弁棒７をその外周に形成した燃
料流通溝１２ａを有する１対の大径部１２，１２
において該案内孔９に嵌挿させて、該案内孔９に
より該弁棒７の開閉変位が案内されるようにし、
常時は前記ばね４により該弁棒７の先端の弁体６
が該弁座１０のシート面１０ａに圧接されて閉弁
されるが、前記電磁コイル２への通電によれば、
前記可動コア５が該ばね４に抗して前記固定コア
３側に磁気吸引され、これに伴う該弁棒７の移動
で該弁体６が該シート面１０ａから離脱され、燃
料管接続用のソケツト部１３からの燃料が該燃料
吐出孔１１から噴射されるようにした。図面で１
４は電磁コイル２に連る端子１４ａを備えたプラ
グソケツト、１５，１６は弁棒７の開弁方向への
変位を規制する弁棒７上のストツパとそのストツ
パ受けを示す。 The valve seat forming body 8 has a guide hole 9 extending in the axial direction.
and a valve seat 10 connected to the tip side of the guide hole 9.
and a fuel discharge hole 11 connected to the valve seat 10, and a pair of large diameter portions 12, 12 having a fuel flow groove 12a formed on the outer periphery of the valve stem 7.
is inserted into the guide hole 9 so that the opening and closing displacement of the valve stem 7 is guided by the guide hole 9,
Normally, the valve body 6 at the tip of the valve stem 7 is held by the spring 4.
is pressed against the seat surface 10a of the valve seat 10 to close the valve, but when the electromagnetic coil 2 is energized,
The movable core 5 is magnetically attracted to the fixed core 3 side against the spring 4, and the accompanying movement of the valve rod 7 causes the valve body 6 to be separated from the seat surface 10a, and the valve body 6 is removed from the seat surface 10a, and the valve body 6 is removed from the seat surface 10a. The fuel from the socket part 13 is injected from the fuel discharge hole 11. 1 in drawings
Reference numeral 4 indicates a plug socket provided with a terminal 14a connected to the electromagnetic coil 2, and 15 and 16 indicate a stopper on the valve stem 7 that restricts displacement of the valve stem 7 in the valve opening direction and its stopper receiver.
ここで前記弁座形成体８は、本発明の特徴とす
るところに従い、素材に案内孔９と弁座１０と燃
料吐出孔１１とを穿設する第３図にS1で示す下孔
加工工程と、案内孔９及び／又は弁座１０をバニ
シング仕上げする仝図にS2で示すバニシング工程
と、このバニシング工程後の素材を焼入れするた
めの仝図にS3で示す焼入れ工程とを含む加工方法
により形成されるもので、特に注目すべきは焼入
れ工程に先行するバニシング工程であり、以下こ
れによつて説明する。 In accordance with the characteristics of the present invention, the valve seat forming body 8 is produced by a pilot hole machining process shown in FIG . , a burnishing process shown in S2 in the figure for burnishing the guide hole 9 and/or the valve seat 10, and a hardening process shown in S3 in the figure for hardening the material after this burnishing process. The burnishing process that precedes the hardening process is particularly noteworthy, and will be explained below using this process.
バニシング工程は、第４図に示す如く、案内孔
９の下孔９′にバニシング工具１７を素材に対し
相対回転させつつ挿入して行うもので、これによ
れば従来法の如く研摩仕上げを施すものと異り、
下孔９′に逃げ溝を切削加工する必要がなく、下
孔９′を逃げ溝を有しない直状孔に形成して、そ
のまま案内孔９に仕上げ加工することが出来、且
つ下孔加工に連続して素材を同一の治具に固定し
たままの状態でバニシング加工を行うことが出
来、下孔９′に対する工具１７の同芯度を確保し
易くなり、生産性及び仕上げ精度が向上される。 The burnishing process is carried out by inserting the burnishing tool 17 into the pilot hole 9' of the guide hole 9 while rotating it relative to the material, as shown in FIG. Unlike,
There is no need to cut a clearance groove in the pilot hole 9', and the pilot hole 9' can be formed into a straight hole without a clearance groove and can be finished into the guide hole 9 as it is. Burnishing can be performed continuously while the material is fixed to the same jig, making it easier to ensure the concentricity of the tool 17 with respect to the prepared hole 9', improving productivity and finishing accuracy. .
更に図示の実施例ではバニシング工具１７とし
て案内孔９と弁座１０とに各摺接可能な１対の第
１第２バニシング面１７ａ，１７ｂを有するもの
を用い、該工具１７を下孔加工用の図示しない穿
孔具と同一軸線上で該素材に対し相対回転させ、
弁座１０の下孔１０′の該第２バニシング面１７
ｂによるバニシング仕上げでシート面１０ａを案
内孔９と同時に仕上げ加工し得るようにし、生産
性を向上し得るようにした。更に、この方法によ
れば、工具１７が単一であるため同芯度が向上さ
れ、案内孔９とシート面１０ａとの表面仕上げに
おける均一性が更に向上されて、燃料噴射弁の精
度も向上される。尚、該各バニシング面１７ａ，
１７ｂには適宜潤滑油溝１７ｃを形成する。この
様に本発明によるときは、案内孔や弁座の仕上げ
加工としてバニシング加工を施すもので、従来の
如く研摩加工を施すものと異り逃げ溝の切削加工
が不要となり、作業が簡単になると共に、切削屑
や逃げ溝による噴射吐出性能への悪影響も防止さ
れ、又作業工程としても、下孔加工とバニシング
加工とが連続して行われるため、素材の治具から
の着脱を繰り返す必要がなく、下孔加工時の治具
に素材を固定したままバニシング加工を行い得ら
れ、下孔に対するバニシング工具の同芯度を確保
し易くなり、而も単一のバニシング工具で案内孔
と弁座とを同時にバニシング仕上げするため、生
産性及び仕上げ精度が向上される効果を有する。 Furthermore, in the illustrated embodiment, a burnishing tool 17 having a pair of first and second burnishing surfaces 17a and 17b that can be slidably contacted with the guide hole 9 and the valve seat 10 is used, and the tool 17 is used for machining a prepared hole. rotate relative to the material on the same axis as a punching tool (not shown),
The second burnishing surface 17 of the pilot hole 10' of the valve seat 10
By burnishing the sheet surface 10a using b, the sheet surface 10a can be finished at the same time as the guide hole 9, and productivity can be improved. Furthermore, according to this method, the concentricity is improved because the tool 17 is single, and the uniformity of the surface finish between the guide hole 9 and the seat surface 10a is further improved, and the accuracy of the fuel injection valve is also improved. be done. Note that each burnishing surface 17a,
A lubricating oil groove 17c is appropriately formed in 17b. As described above, according to the present invention, burnishing is performed as a finishing process for the guide hole and valve seat, and unlike the conventional polishing process, cutting of relief grooves is not required, which simplifies the work. At the same time, it also prevents the harmful effects of cutting chips and relief grooves on the jetting performance, and since the preparation process and burnishing process are performed consecutively, there is no need to repeatedly attach and detach the material from the jig. The burnishing process can be performed while the material is fixed to the jig when machining the pilot hole, making it easier to ensure the concentricity of the burnishing tool to the pilot hole, and the guide hole and valve seat can be processed with a single burnishing tool. Since both are burnished at the same time, productivity and finishing accuracy are improved.
第１図は従来の弁座形成体の加工方法を説明す
る截断側面図、第２図は本発明方法により得られ
る弁座形成体を用いた燃料噴射弁の１例の截断側
面図、第３図は本発明方法の加工手順を示す工程
図、第４図はそのバニシング工程を説明する弁座
形成体の截断側面図である。
１……燃料噴射弁本体、２……電磁コイル、３
……固定コア、５……可動コア、６……弁体、７
……弁棒、８……弁座形成体、９……案内孔、１
０……弁座、１１……燃料吐出孔、１７……バニ
シング工具、１７ａ，１７ｂ……バニシング面。
FIG. 1 is a cutaway side view illustrating a conventional method for processing a valve seat forming body, FIG. 2 is a cutaway side view of an example of a fuel injection valve using a valve seat forming body obtained by the method of the present invention, and FIG. The figure is a process diagram showing the processing procedure of the method of the present invention, and FIG. 4 is a cutaway side view of the valve seat forming body illustrating the burnishing process. 1... Fuel injection valve body, 2... Electromagnetic coil, 3
... Fixed core, 5 ... Movable core, 6 ... Valve body, 7
... Valve stem, 8 ... Valve seat forming body, 9 ... Guide hole, 1
0... Valve seat, 11... Fuel discharge hole, 17... Burnishing tool, 17a, 17b... Burnishing surface.
Claims (1)
設された電磁コイルにより固定コアに磁気吸引さ
れる可動コアと、先端に弁体が形成されて前記可
動コアに取付けられる弁棒と、その弁棒を内挿す
べく前記燃料噴射弁本体の先端側に取付けられる
弁座形成体とを含む燃料噴射弁における、前記弁
座形成体を加工するための方法であつて、前記弁
棒の開閉変位を案内するための案内孔と、その案
内孔の先端側に連なり前記弁体が着座される弁座
と、弁座に連なる燃料吐出孔とを、素材に穿設す
る下孔加工工程、前記下孔加工工程において用い
られる穿孔具で形成される下孔の孔軸と同一軸線
で前記素材に対し相対的に回転され、かつ前記案
内孔および弁座に摺接可能な一対のバニシング面
を有するバニシング工具を用い、前記下孔加工工
程で用いた治具に前記素材を固定したまま前記案
内孔および弁座を同時にバニシング仕上げするバ
ニシング工程、ならびに前記バニシング工程後の
素材を焼入れするための焼入れ工程を含むことを
特徴とする燃料噴射弁における弁座形成体の加工
方法。1. A fuel injection valve body, a movable core that is magnetically attracted to a fixed core by an electromagnetic coil installed in the fuel injection valve body, a valve stem having a valve body formed at its tip and attached to the movable core, and A method for processing the valve seat forming body in a fuel injection valve including a valve seat forming body attached to the distal end side of the fuel injection valve main body for inserting the valve stem, the method comprising: opening and closing displacement of the valve stem; a pilot hole machining step of drilling in the material a guide hole for guiding the valve, a valve seat connected to the tip side of the guide hole and on which the valve body is seated, and a fuel discharge hole connected to the valve seat; Burnishing having a pair of burnishing surfaces that are rotated relative to the material on the same axis as the hole axis of a prepared hole formed by a drilling tool used in the hole processing process and that are capable of slidingly contacting the guide hole and the valve seat. A burnishing step of burnishing the guide hole and the valve seat simultaneously using a tool while the material is fixed to the jig used in the pilot hole machining step, and a quenching step of hardening the material after the burnishing step. A method of processing a valve seat forming body in a fuel injection valve, the method comprising:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22440783A JPS60118462A (en) | 1983-11-30 | 1983-11-30 | Method for processing valve seat forming body in fuel injection valve |
| GB08430188A GB2151516B (en) | 1983-11-30 | 1984-11-29 | Manufacturing valve seat-forming member |
| FR8418191A FR2555489B1 (en) | 1983-11-30 | 1984-11-29 | METHOD FOR MANUFACTURING AN ELEMENT FORMING THE SEAT OF A FUEL INJECTION VALVE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22440783A JPS60118462A (en) | 1983-11-30 | 1983-11-30 | Method for processing valve seat forming body in fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60118462A JPS60118462A (en) | 1985-06-25 |
| JPH022655B2 true JPH022655B2 (en) | 1990-01-18 |
Family
ID=16813276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22440783A Granted JPS60118462A (en) | 1983-11-30 | 1983-11-30 | Method for processing valve seat forming body in fuel injection valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS60118462A (en) |
| FR (1) | FR2555489B1 (en) |
| GB (1) | GB2151516B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557879B2 (en) * | 1987-04-24 | 1996-11-27 | トピ−工業株式会社 | Nut seat machining method for wheel bolt holes |
| GB8914478D0 (en) * | 1989-06-23 | 1989-08-09 | Lucas Ind Plc | Fuel injection nozzle |
| GB2262247B (en) * | 1991-12-13 | 1996-01-10 | Conex Ind Ltd | A process for producing brass fittings |
| DE19602068C2 (en) * | 1996-01-20 | 1998-07-02 | Bosch Gmbh Robert | Method and device for producing rotationally symmetrical valve seat surfaces with a high surface quality on valves, in particular fuel injection valves for internal combustion engines |
| US6098958A (en) * | 1998-05-06 | 2000-08-08 | Ernst Thielenhaus Kg | Valve assembly, especially for a fuel-injection valve and method of making same |
| US6920690B1 (en) * | 1999-04-27 | 2005-07-26 | Siemens Vdo Automotive Corp. | Method of manufacturing a fuel injector seat |
| JP3955043B2 (en) * | 2004-06-29 | 2007-08-08 | 株式会社ケーヒン | Manufacturing method of electromagnetic fuel injection valve |
| JP4606352B2 (en) * | 2006-03-10 | 2011-01-05 | サンデン株式会社 | Manufacturing method of discharge capacity control valve for variable capacity compressor |
| DE102009001933A1 (en) * | 2009-03-27 | 2010-09-30 | Robert Bosch Gmbh | Method for processing a nozzle body |
| WO2015020940A1 (en) * | 2013-08-05 | 2015-02-12 | Cummins Inc. | Fuel injector including a control valve having a guided check valve ball |
| CN115213648A (en) * | 2022-09-19 | 2022-10-21 | 山东科技职业学院 | Core hole extrusion processing device and processing method of main core hole of hydraulic valve block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS473275U (en) * | 1971-02-04 | 1972-09-04 | ||
| JPS5330971B2 (en) * | 1971-10-23 | 1978-08-30 | ||
| JPS5682162A (en) * | 1979-12-03 | 1981-07-04 | Fujii Gokin Seisakusho:Kk | Method for finishing sliding face of cock |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1683044A (en) * | 1926-05-28 | 1928-09-04 | Fred D Mongeau | Burnishing tool |
| GB887765A (en) * | 1960-08-04 | 1962-01-24 | Orange G M B H L | Process and apparatus for the rounding of injection bores of injection nozzles in particular the nozzles of compression-ignition engines |
| JPS5330971U (en) * | 1976-08-20 | 1978-03-16 | ||
| FR2441733A1 (en) * | 1978-11-17 | 1980-06-13 | Innota Innovation Tech Avancee | ELECTROMAGNETIC INJECTORS AND METHODS OF MAKING THE SAME |
-
1983
- 1983-11-30 JP JP22440783A patent/JPS60118462A/en active Granted
-
1984
- 1984-11-29 GB GB08430188A patent/GB2151516B/en not_active Expired
- 1984-11-29 FR FR8418191A patent/FR2555489B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS473275U (en) * | 1971-02-04 | 1972-09-04 | ||
| JPS5330971B2 (en) * | 1971-10-23 | 1978-08-30 | ||
| JPS5682162A (en) * | 1979-12-03 | 1981-07-04 | Fujii Gokin Seisakusho:Kk | Method for finishing sliding face of cock |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60118462A (en) | 1985-06-25 |
| GB2151516A (en) | 1985-07-24 |
| FR2555489A1 (en) | 1985-05-31 |
| GB8430188D0 (en) | 1985-01-09 |
| FR2555489B1 (en) | 1993-01-08 |
| GB2151516B (en) | 1987-04-08 |
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