JPS5988271U - Internal combustion engine fuel injection system - Google Patents
Internal combustion engine fuel injection systemInfo
- Publication number
- JPS5988271U JPS5988271U JP5953083U JP5953083U JPS5988271U JP S5988271 U JPS5988271 U JP S5988271U JP 5953083 U JP5953083 U JP 5953083U JP 5953083 U JP5953083 U JP 5953083U JP S5988271 U JPS5988271 U JP S5988271U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- control
- pump
- injection device
- fuel
- 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.)
- Granted
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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the piston
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
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
第１図は本考案による燃料噴射装置を示した図、第２図
は制御スリーブ番制御縁の範囲で展開した図である。
１・・・燃料噴射ポンプ、２・・・供給導管、３・・・
燃料噴射弁、４・・・ポンプケーシング、５・・・ポン
プシリンダ、６・・・弁保持体、７・・・吐出弁保持体
、８・・・ポンプ吐出孔、９・・・吐出弁、１０川燃料
制御カム、１１・・・ポンププランジャ、１２川吸込み
及び戻し室、１３・・・燃料フィードポンプ、１４・・
・タンク、１５・・・供給導管、１６・・・ポンプ室、
１７・・・流入通路、１８・・・逃がし通路、１９・・
・ピストン部、２゜・・・制御スリーブ、２１・・・制
御縁、２２・・・制御縁、２３・・・ポンプシリンダ孔
、２４・・・ピストンヘッド、２５・・・端面、２６・
・・支承幹部、２７・・・保持部材、２８・・・押圧力
伝達ピン、２９・・・押しばね、３ｏ・・・フランジ、
３１・・・支持面、３２・・・タペット、３３・・・支
承孔、３４・・・ローラ、３５・・・つば、３６・・・
下方のリング溝、３７・・・縦溝、３８・・・周面部分
、３９・・・歯、４０・・・制御棒、４１・・・制御機
構、４２・・・調整機構、１８１・・・横孔、１８２・
・・ｉ孔、１８３．１８４・・・横孔、１８５・・・リ
ング通路、２１１．２１２，２１３，２２１，２２２・
・・部分。FIG. 1 shows a fuel injection device according to the present invention, and FIG. 2 shows a developed view of the control sleeve and the control edge. 1... Fuel injection pump, 2... Supply conduit, 3...
Fuel injection valve, 4... pump casing, 5... pump cylinder, 6... valve holder, 7... discharge valve holder, 8... pump discharge hole, 9... discharge valve, 10 Fuel control cam, 11 Pump plunger, 12 Suction and return chamber, 13 Fuel feed pump, 14...
・Tank, 15... Supply conduit, 16... Pump room,
17...Inflow passage, 18...Escape passage, 19...
- Piston part, 2°... Control sleeve, 21... Control edge, 22... Control edge, 23... Pump cylinder hole, 24... Piston head, 25... End face, 26...
... Supporting trunk, 27 ... Holding member, 28 ... Pressure force transmission pin, 29 ... Pressure spring, 3o ... Flange,
31...Support surface, 32...Tappet, 33...Support hole, 34...Roller, 35...Brim, 36...
Lower ring groove, 37... Vertical groove, 38... Peripheral surface portion, 39... Teeth, 40... Control rod, 41... Control mechanism, 42... Adjustment mechanism, 181...・Horizontal hole, 182・
...i hole, 183.184... horizontal hole, 185... ring passage, 211.212, 213, 221, 222.
··part.
Claims (1)
料を供給する燃料噴射ポンプを備えており、この燃料噴
射ポンプがカム制御された、ポンプシリンダ内で往復運
動するポンププランジャを有しており、このポンププラ
ンジャが回動可能な、ポンププランジャ軸線に対してそ
れぞれ直角及び（または）斜めに延びる複数の制御縁、
すなわち燃料噴射開始時点を決定する上方の制御縁とこ
の上方の制御縁に対して軸方向にずらされた、燃料噴射
終了時点を決定する下方の制御縁とを有しており、これ
ら上下の制御縁でポンプ室と燃料供給導管に接続された
吹込み及び戻し室との間を延びる通路を開閉制御するよ
うになっている形式のものにおいてζポンププランジャ
１１が２つの独立した機能要素、すなわち必要な燃料圧
を生せしめるピストン部１９；２４，２５．２６とこの
ピストン部に軸方向で動かないようにしかも回動可能に
支承された制御スリーブ２０とに分割されており、この
制御スリーブ２０が制御縁２１．２２を有していてかつ
制御機構４１と調整機構４２とを有する回動機構３９．
４０に連結されていることを特徴とする、内燃機関め燃
料噴射装置。 ２、前記吸込み及び戻し室１２とポンプ室１６との間に
流入通路１７が設けられており、二の流入通路１７が燃
料圧を生せしめるピストン部１９とだけ協働してこのピ
ストン部１９の、ポンプ室１６の後方を制限する端面２
５によって開閉制御されるようになっており、逃がし通
路１８が設けられており、この逃がし通路１８がポンプ
プランジャの上死点位置の上方でポンプ室１６から分岐
していてかつ制御スリーブ２０の制御縁２１．２２とだ
け協働してこの制御縁２１．２２によって開閉制御され
るようになっている、実用新案登録請求の範囲第１項記
載の燃料噴射装置。 ３ 燃料圧を生せしめるピストン部１９が外周面ででき
るだけ液密にポンプシリンダ孔２３内で案内された円筒
状のピストンヘッド２４を有しており、このピストンヘ
ッド２４が上部では端面２５でポンプ室１６を制限し、
下部ではこのピストンヘッド２４にこれよりも直径の小
さい円筒状の支承幹部２６が続いており、この支承幹部
２６に制御スリーブ２０が回動可能に支承され、しかも
軸方向で動かないように間接的に固定されている、実用
新案登録請求の範囲第１項または第２項記載の燃料噴射
装置。 ４一端でピストンヘッド２４の下部に支持されル制御ス
リーブ２０が他端で押しばね２９の保持部材２７に軸方
向で固定されており、この保持部材２７が押圧力伝達ピ
ン２８によって支承幹部２６の下部に固定されており、
この押圧力伝達ピン２８がポンプケーシング４内で案内
されたタペット３２に対する結合部材を成しており、こ
のタペット３２がこれに支承されたローラ３４を介して
、押しばね２９によって負荷されて燃料制御カム１０に
接触せしめられる、実用新案登録請求の範囲第３項記載
の燃料噴射装置。 ５ 燃料噴射開始時点を決定する上方の制御縁２１；２
１１，２１２，２１３が制御スリーブ２０の上部に一体
成形された、制御スリーブ２０の外周面に較べて直径の
小さいつば３５または上方の環状のリング溝の側壁によ
って形成されており、燃料噴射終了時点を決定する下方
の制御縁２２；２２１，２２２が制御スリーブ２０を巡
って延びる下方のリング溝３６の上側の側壁によって形
成されており、これらの制御縁２１．２２に隣接する室
が少なくとも１つの縦溝３７によって互いに接続されて
いる、実用新案登録請求の範囲第１項から第４項までの
いずれか１つの項記載の燃料噴射装置。 ６ 制御スリーブ２０に設けられた前記制御縁２１．２
２に隣接する室が燃料噴射ポンプ１の、ポンプ室１６に
隣接する部分の内部で横孔１８１．１８３，１８４と縦
孔１８２とポンプシリンダ孔２３を巡って延びるリング
通路１８５とによって形成される逃がし通路１８の７部
を成しており、横孔１８３がリング通路１８５の上方で
ポンプシリンダ孔２３に開口しており、吸込み戻し孔１
２に開口している横孔１８４がリング通路１８５から分
岐しており、横孔１８３の開口が制御縁２１．２２によ
って開閉制御可能である、実用新案登録請求の範囲第１
項から第５項までのいずれか１つの項記載の燃料噴射装
置。 ７ 前記制御スリーブ２０を回動させる回動機構が制御
スリーブ２０に一体成形された歯３９と、この歯３９に
噛合う歯を備えかつ軸方向で移動するようにポンプケー
シング４内に支承された制御棒４０とから成っており、
この制御棒４０が制御機構４１に連結されており、この
制御機構４１が制御スリーブ２０を調整する適当な調整
命令を所属の調整機構４２から受取るようになっている
、実用新案登録請求の範囲第１項から第６項までのいず
れか１つの項記載の燃料噴射装置。 ８ 前記制御機構４１として電気的なステップモータが
設けられており、このステップモータに調整機構４２と
してマイクロプロセッサが設けられでおり、このマイク
ロプロセッサが制御縁２１．２２の適正調節値を、変化
する機部運転特性値に関連して算出しかつ適当な制御命
令をステップモータに送るようになっている、実用新案
登録請求の範囲第７項記載の燃料噴射装置。 ９ 前記制御機構４２として負荷に関連して働く機械式
または電気式の調速機が設けられており、この調速機か
特別な調整捧を介して制御棒４０に作用してこれを移動
させるようになっている、実用新案登録請求の範囲第７
項記載の燃料噴射装置。[Scope of Claim for Utility Model Registration] 1. A fuel injection device for an internal combustion engine, which is equipped with a fuel injection pump that supplies fuel to a fuel injection valve, and this fuel injection pump reciprocates in a cam-controlled pump cylinder. a plurality of control edges, each extending perpendicularly and/or obliquely to the pump plunger axis, having a moving pump plunger, the pump plunger being rotatable;
That is, it has an upper control edge that determines the fuel injection start point and a lower control edge that determines the fuel injection end point, which is shifted in the axial direction with respect to the upper control edge, and these upper and lower control edges In those types in which the ζ pump plunger 11 is adapted to control the opening and closing of the passage extending between the pump chamber and the blow-in and return chambers connected at the edge to the fuel supply conduit, the ζ pump plunger 11 has two independent functional elements, viz. It is divided into a piston part 19; 24, 25, 26, which generates a certain fuel pressure, and a control sleeve 20 which is axially immovably but rotatably supported on this piston part. A pivot mechanism 39 with control edges 21, 22 and with a control mechanism 41 and an adjustment mechanism 42.
40. A fuel injection device for an internal combustion engine, characterized in that the fuel injection device is connected to an internal combustion engine. 2. An inflow passage 17 is provided between the suction and return chamber 12 and the pump chamber 16, and the second inflow passage 17 cooperates only with the piston part 19 that generates fuel pressure, so that the piston part 19 , an end surface 2 that limits the rear of the pump chamber 16
A relief passage 18 is provided, and this relief passage 18 branches from the pump chamber 16 above the top dead center position of the pump plunger and controls the control sleeve 20. 2. The fuel injection device according to claim 1, wherein the fuel injection device is adapted to be opened and closed by the control lip 21.22 in cooperation with the lip 21.22. 3. The piston part 19 that generates fuel pressure has a cylindrical piston head 24 guided as liquid-tightly as possible in the pump cylinder bore 23 on its outer circumferential surface, and this piston head 24 has an end face 25 in the upper part of the pump chamber. limit 16;
In the lower part, this piston head 24 is adjoined by a cylindrical bearing body 26 with a smaller diameter, on which the control sleeve 20 is rotatably supported, but indirectly so that it cannot move in the axial direction. The fuel injection device according to claim 1 or 2 of the utility model registration claim, wherein the fuel injection device is fixed to. 4, the control sleeve 20 is supported at the lower part of the piston head 24 at one end, and is axially fixed at the other end to a holding member 27 of a pressure spring 29, which is connected to the support shaft 26 by means of a pressing force transmitting pin 28. It is fixed at the bottom,
This pressing force transmitting pin 28 constitutes a connecting member to a tappet 32 guided within the pump casing 4, and this tappet 32 is loaded by a pressing spring 29 via a roller 34 supported by the tappet 32 to control the fuel. The fuel injection device according to claim 3, which is brought into contact with the cam 10. 5 Upper control edge 21 determining the fuel injection start point; 2
11, 212, and 213 are formed by a collar 35 integrally molded on the upper part of the control sleeve 20 and having a smaller diameter than the outer circumferential surface of the control sleeve 20, or by a side wall of an upper annular ring groove. Lower control edges 22; 221, 222, which determine the Fuel injection devices according to any one of the claims 1 to 4, which are connected to each other by longitudinal grooves 37. 6 said control edge 21.2 provided on the control sleeve 20;
A chamber adjacent to 2 is formed inside the part of the fuel injection pump 1 adjacent to the pump chamber 16 by horizontal holes 181, 183, 184, a vertical hole 182 and a ring passage 185 extending around the pump cylinder hole 23. The lateral hole 183 opens into the pump cylinder hole 23 above the ring passage 185, and the suction return hole 1 forms the seventh part of the relief passage 18.
2, a horizontal hole 184 which is open to the ring passage 185 branches from the ring passage 185, and the opening of the horizontal hole 183 can be controlled to open and close by means of a control edge 21.22.
5. The fuel injection device according to any one of items 5 to 5. 7. A rotation mechanism for rotating the control sleeve 20 includes teeth 39 integrally molded on the control sleeve 20 and teeth that mesh with the teeth 39, and is supported within the pump casing 4 so as to move in the axial direction. It consists of a control rod 40,
The control rod 40 is connected to a control mechanism 41 which is adapted to receive appropriate adjustment commands for adjusting the control sleeve 20 from an associated adjustment mechanism 42. The fuel injection device according to any one of items 1 to 6. 8. An electric stepper motor is provided as the control mechanism 41, and a microprocessor is provided on this stepper motor as the adjustment mechanism 42, which microprocessor changes the appropriate adjustment value of the control edge 21.22. 8. The fuel injection device according to claim 7, wherein the fuel injection device is configured to calculate in relation to machine operating characteristic values and send an appropriate control command to the step motor. 9. The control mechanism 42 is provided with a mechanical or electrical speed governor that operates in relation to the load and acts on the control rod 40 to move it through a special regulating shaft. Scope of Claim for Utility Model Registration No. 7
The fuel injection device described in Section 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823215046 DE3215046C2 (en) | 1982-04-22 | 1982-04-22 | Fuel injection pump for internal combustion engines |
| DE3215046.6 | 1982-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5988271U true JPS5988271U (en) | 1984-06-14 |
| JPH0433416Y2 JPH0433416Y2 (en) | 1992-08-11 |
Family
ID=6161680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5953083U Granted JPS5988271U (en) | 1982-04-22 | 1983-04-22 | Internal combustion engine fuel injection system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5988271U (en) |
| DE (1) | DE3215046C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019516038A (en) * | 2016-04-15 | 2019-06-13 | コーヨー ベアリングス ノース アメリカ エルエルシー | Tappet with sliding inner cup |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123721C1 (en) * | 1991-07-17 | 1992-06-17 | Steyr-Daimler-Puch Ag, Wien, At | Fuel injection system with pump and nozzle units - has laterally coupled pump duct to chamber in piston bush |
| DE4441113C1 (en) * | 1994-11-18 | 1996-04-04 | Bosch Gmbh Robert | High pressure fuel pump for internal combustion engines |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4968117A (en) * | 1972-09-12 | 1974-07-02 | ||
| JPS56132421A (en) * | 1980-03-19 | 1981-10-16 | Daihatsu Diesel Kk | Fuel injection pump for diesel engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE491785C (en) * | 1926-01-03 | 1930-02-13 | Acro Akt Ges | Fuel injection pump for internal combustion engines |
| DE613373C (en) * | 1932-08-16 | 1935-05-18 | Robert Bosch Akt Ges | Fuel injection pump for internal combustion engines |
| DE1910112C3 (en) * | 1969-02-28 | 1974-07-18 | Robert Bosch Gmbh, 7000 Stuttgart | Control device for the delivery rate of an injection pump for internal combustion engines |
| CH600150A5 (en) * | 1976-03-09 | 1978-06-15 | Bosch Gmbh Robert |
-
1982
- 1982-04-22 DE DE19823215046 patent/DE3215046C2/en not_active Expired
-
1983
- 1983-04-22 JP JP5953083U patent/JPS5988271U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4968117A (en) * | 1972-09-12 | 1974-07-02 | ||
| JPS56132421A (en) * | 1980-03-19 | 1981-10-16 | Daihatsu Diesel Kk | Fuel injection pump for diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019516038A (en) * | 2016-04-15 | 2019-06-13 | コーヨー ベアリングス ノース アメリカ エルエルシー | Tappet with sliding inner cup |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433416Y2 (en) | 1992-08-11 |
| DE3215046A1 (en) | 1983-11-03 |
| DE3215046C2 (en) | 1986-07-31 |
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