JPH0310032B2 - - Google Patents
Info
- Publication number
- JPH0310032B2 JPH0310032B2 JP55044774A JP4477480A JPH0310032B2 JP H0310032 B2 JPH0310032 B2 JP H0310032B2 JP 55044774 A JP55044774 A JP 55044774A JP 4477480 A JP4477480 A JP 4477480A JP H0310032 B2 JPH0310032 B2 JP H0310032B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pump
- valve member
- fuel injection
- valve
- 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
- 239000000446 fuel Substances 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 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
- 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
- F02M59/22—Varying quantity or timing by adjusting cylinder-head space
-
- 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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
- F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
- F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
- F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、内燃機関の燃料噴射ポンプであつ
て、燃料噴射ポンプのポンプ作業室を1つの放圧
室と接続する1つの通路を有し、この通路の流通
が電磁的に操作される弁を介して制御可能であ
り、この弁が平座弁として構成されていて、その
可動の弁部材がポンプ作業室内で支配する圧力に
よつて直接に閉鎖方向への作用を受ける形式のも
のに関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a fuel injection pump for an internal combustion engine, which has one passage connecting a pump working chamber of the fuel injection pump with one pressure relief chamber. , the flow of this passage can be controlled via an electromagnetically operated valve, which is configured as a flat-seated valve, the movable valve member of which is directly controlled by the pressure prevailing in the pump working chamber. It relates to a type of device that is subjected to an action in the closing direction.
[従来の技術]
米国特許第3661130号明細書によつて知られる
この種の燃料噴射ポンプによれば、分配型噴射ポ
ンプの場合に1つの電磁弁が噴射ポンプ軸線と同
軸的に端面側をポンプ作業室に接して配置され
る。このような電磁弁は特定の運転条件下におい
てポンプ作業室を完全に放圧するためのしや断弁
として役立てられる。この電磁弁の弁部材は1つ
の開放ばねによつて開放方向での負荷を受ける。
この弁部材がポンプ作業室内へ落ち込まないよう
にするため、並びに開放行程制限を目的として、
この弁部材は頭部を介して電磁石の可動子に形状
結合によつて連結されており、この場合可動子の
端面におう所が形成されていて、このおう所の縁
部が弁部材の頭部の背後に係合する内向きつばを
なしている。この構造形式は極めて高価であり、
加えて電磁弁の可動質量を増大させ、このことは
また応動速度の低下もしくは所要エネルギの増大
を招く。[Prior Art] According to a fuel injection pump of this type known from U.S. Pat. It is placed adjacent to the work room. Such a solenoid valve serves as a stop valve for completely depressurizing the pump work chamber under certain operating conditions. The valve member of this solenoid valve is loaded in the opening direction by an opening spring.
In order to prevent this valve member from falling into the pump working chamber and for the purpose of limiting the opening stroke,
This valve member is connected via the head to the armature of the electromagnet by form-locking, in which case a cavity is formed on the end face of the armature, the edge of this cavity being the head of the valve member. It has an inward collar that engages the back of the part. This construction type is extremely expensive;
In addition, it increases the moving mass of the solenoid valve, which also reduces the response speed or increases the energy requirements.
[発明が解決しようとする課題]
本発明の課題は、冒頭に述べた形式の燃料噴射
ポンプにおいて、低負荷時、特にアイドリング運
転時の内燃機関の運転騒音が迅速かつ確実に働く
簡単な構造の磁石弁の使用によつて減少されるよ
うにすることである。[Problems to be Solved by the Invention] An object of the present invention is to provide a fuel injection pump of the type mentioned at the beginning with a simple structure that quickly and reliably reduces the operating noise of the internal combustion engine at low loads, especially during idling. This is to be reduced by the use of magnet valves.
[課題を解決するための手段]
このような課題を本発明は特許請求の範囲第1
項に示す特徴事項によつて解決した。この場合、
電磁弁の可動質量を極めて小さくすることができ
る。というのは、電磁石の可動子をたんに押圧部
材として構成すればよいからである。このような
構成によれば、弁部材を独立に動かすことができ
て、燃料噴射ポンプの噴射燃料減少なしの所定の
噴射量を用意するために閉鎖ばねによつて迅速確
実に閉鎖位置へ切り替えることができ、しかもそ
の閉鎖過程がポンプ作業室内の圧力上昇に左右さ
れることはない。[Means for solving the problem] The present invention solves this problem in the first claim.
The problem was solved by the characteristics shown in section 2. in this case,
The movable mass of the solenoid valve can be made extremely small. This is because the movable element of the electromagnet need only be constructed as a pressing member. According to such a configuration, the valve member can be moved independently and quickly and reliably switched to the closed position by the closing spring in order to provide a predetermined injection amount without reducing the amount of fuel injected by the fuel injection pump. , and the closing process is not dependent on pressure build-up in the pump working chamber.
[実施例]
次に図面に示した実施例について本発明を説明
する:
多気筒内燃機関用である図示の分配型の燃料噴
射ポンプのケーシング1内において、周知のよう
に駆動軸によつてカム円板およびローラ等を介し
てプランジヤ8が往復動と同時に回動をも生ず
る。[Embodiment] The present invention will now be explained with reference to the embodiment shown in the drawings: In the casing 1 of the illustrated distribution type fuel injection pump for a multi-cylinder internal combustion engine, a cam is connected to the cam by a drive shaft as is well known. The plunger 8 causes reciprocating motion and rotation at the same time through the disk, rollers, and the like.
このプランジヤ8は、ケーシング1内へ装着さ
れて上端を閉ざされたバレル9の内孔10内で運
動し、上部に1つの作業室11を形成する。バレ
ル9の閉鎖には1つの不動の弁体12が使われて
いて、この弁体12は可動の弁部材13と共にポ
ンプ作業室の1つの逃がし弁をなす。弁部材13
は1つの閉鎖ばね14による負荷を受けており、
この閉鎖ばね14は弁部材13の頭部15を弁体
12の弁座へ密着させている。ポンプ作業室11
内に支配する圧力によつて頭部15は付加的に弁
座へ圧着されている。この弁によつて1つの逃が
し通路45が制御される。この逃がし通路45
は、吐出行行程の間ポンプ作業室11内で支配す
る圧力よりも低い圧力が支配する1つの閉ざされ
た燃料溜め46へ通じている。 This plunger 8 moves in an inner bore 10 of a barrel 9 which is fitted into the casing 1 and is closed at the upper end, forming a working chamber 11 in the upper part. A stationary valve body 12 is used to close the barrel 9, which together with a movable valve element 13 forms a relief valve for the pump working chamber. Valve member 13
is loaded by one closing spring 14,
This closing spring 14 brings the head 15 of the valve member 13 into close contact with the valve seat of the valve body 12. Pump work room 11
The head 15 is additionally pressed against the valve seat by the internal pressure. One relief passage 45 is controlled by this valve. This escape passage 45
opens into a closed fuel reservoir 46, which is at a lower pressure than that prevailing in the pump working chamber 11 during the discharge stroke.
可動の弁部材13は1つの電磁石17によつて
操作される。この電磁石17はコイル18、可動
子19、コア20を有している。この電磁石17
はケーシング21を介して燃料噴射ポンプのケー
シング1内にねじ付けられて、1つのスリーブ2
2を介して弁体12をバレル9上へ圧着してお
り、この場合温度変化に伴う或る程度の膨張は補
償される。 The movable valve member 13 is operated by one electromagnet 17. This electromagnet 17 has a coil 18, a mover 19, and a core 20. This electromagnet 17
is screwed into the casing 1 of the fuel injection pump through the casing 21 into one sleeve 2
2, the valve body 12 is pressed onto the barrel 9, in which case a certain degree of expansion due to temperature changes is compensated for.
ポンプ作業室11は周知の通り1つの吸込通路
23を介してこの吸込通路23が接続された吸込
室から燃料を供給され、この吸込通路23はプラ
ンジヤ8の周面に形成されている吸込みぞ24を
介して制御される。この吸込みぞ24は吸込通路
23をプランジヤ8の吸込行程ごとに開放する。
ポンプ作業室11から機関シリンダへの燃料供給
も周知の形式でプランジヤ8の図示してない縦
孔、横孔および分配みぞからシリンダ数に相当す
る数の吐出導管を経てなされる。 As is well known, the pump working chamber 11 is supplied with fuel from a suction chamber to which this suction passage 23 is connected via one suction passage 23, and this suction passage 23 is connected to a suction groove 24 formed on the circumferential surface of the plunger 8. controlled via. This suction groove 24 opens the suction passage 23 every time the plunger 8 takes a suction stroke.
The supply of fuel from the pump work chamber 11 to the engine cylinders also takes place in a known manner through a number of delivery lines corresponding to the number of cylinders from longitudinal holes, transverse holes and distribution channels (not shown) in the plunger 8.
第1図の実施例の場合、アイドル回転時並びに
低負荷回転時に電磁石17のコイル18が励磁さ
れると、可動子19がコア20へ向かつて下へ引
かれて可動の弁部材13を押す。プランジヤ8の
吐出行程の間電磁石17は弁12,13に閉鎖方
向へ作用するポンプ作業室11内の力を上回るこ
とはない。しかしプランジヤ8が吸込行程を開放
次第電磁石17は弁12,13の閉鎖ばね14の
力を上回り、この弁を開放する。次の吐出行程中
ポンプ作業室11内で圧力の上昇が生ぜず、従つ
て弁12,13は開放位置に保たれ、プランジヤ
8によつて搬送された燃料の一部が噴射されずに
プランジヤ8の絞り間〓を通つて1つの通路45
を経て燃料溜め46内へ導かれる。その結果、機
関内での噴射時間の延長を生ずる。 In the embodiment shown in FIG. 1, when the coil 18 of the electromagnet 17 is energized during idle rotation and low load rotation, the movable element 19 is pulled downward toward the core 20 and pushes the movable valve member 13. During the discharge stroke of the plunger 8, the electromagnet 17 does not exceed the force in the pump working chamber 11 which acts on the valves 12, 13 in the closing direction. However, as soon as the plunger 8 opens the suction stroke, the electromagnet 17 overcomes the force of the closing spring 14 of the valve 12, 13 and opens this valve. During the next discharge stroke, no pressure buildup occurs in the pump working chamber 11, so that the valves 12, 13 remain in the open position, and a portion of the fuel conveyed by the plunger 8 is not injected and the plunger 8 One passage 45 through the aperture of
The fuel is guided into the fuel reservoir 46 through the fuel tank 46. As a result, the injection time within the engine is extended.
すなわち、プランジヤによつて送り出される燃
料の一部が噴射ノズルへ送られずに燃料溜めへ送
られるということによつて、プランジヤの搬送
量、要するに噴射ノズルへ供給される単位時間当
たりの燃料量が減少し、その結果プランジヤは所
要の燃料量を供給するために相応に長い時間にわ
たつて送り出さねばならない。かくして噴射時間
の延長が生ずることになる。この噴射時間の延長
は機関騒音の著しい低減を惹起し、要するに機関
のいわゆる微速回転を生ずる。プランジヤ8の吸
込行程の間燃料溜め46内の燃料の一部はポンプ
作業室11内へ逆流する。この逆流は逃がし通路
45および弁12,13を介してか又は吸込みぞ
24の1つを介して行われるが、後者の場合は逃
がし通路45がバレル9の内孔10へ通ずる通路
延長部47を有している必要がある。電磁石17
は例えば加速ペダルで操作される1つのスイツチ
によつて制御することができ、この場合アイドル
回転並びに低負荷回転のための加速ペダル位置が
電磁石17の相応の励磁を惹起することになる。 In other words, because a part of the fuel delivered by the plunger is not sent to the injection nozzle but to the fuel reservoir, the amount of fuel delivered by the plunger, in other words, the amount of fuel per unit time supplied to the injection nozzle, is reduced. decrease, so that the plunger has to deliver for a correspondingly longer time in order to supply the required amount of fuel. This results in an extension of the injection time. This elongation of the injection time causes a significant reduction in engine noise and, in short, causes the engine to rotate at a so-called slow speed. During the suction stroke of the plunger 8, a portion of the fuel in the fuel reservoir 46 flows back into the pump working chamber 11. This backflow takes place via the relief passage 45 and the valves 12, 13 or through one of the suction channels 24, in which case the relief passage 45 has a passage extension 47 leading into the bore 10 of the barrel 9. Must have. Electromagnet 17
can be controlled, for example, by a switch operated on the accelerator pedal, in which case the accelerator pedal position for idle rotation as well as low-load rotation causes a corresponding excitation of electromagnet 17.
第2図の実施例の場合第1図の実施例と異なる
点として燃料溜めがばね付き燃料溜め46′とし
て構成されている。このばね付き燃料溜め46′
はばね49による負荷を受けた1つのピストン4
8と協働する。第1図の実施例に場合に溜め室容
量が燃料自体の弾性によつて左右されるのに対し
て、この第2図の実施例の場合溜め室容量は付加
的にピストン48の行程によつて規定される。 The embodiment of FIG. 2 differs from the embodiment of FIG. 1 in that the fuel reservoir is constructed as a spring-loaded fuel reservoir 46'. This spring-loaded fuel reservoir 46'
One piston 4 loaded by a spring 49
Collaborate with 8. Whereas in the embodiment of FIG. 1 the reservoir volume depends on the elasticity of the fuel itself, in the embodiment of FIG. stipulated.
第1図は本発明の第1の実施例の縦断面図、第
2図は第2の実施例の弁縦断面図である。
1……ポンプケーシング、2……駆動軸、3…
…正面カム円板、4……カム突起、5……ロー
ラ、6……カプリング、8……プランジヤ、9…
…バレル、11……ポンプ作業室、12……弁
体、13……弁部材、14……閉鎖ばね、17…
…電磁石、18……コイル、19……可動子、2
0……コア、21……磁石ケーシング、22……
スリーブ、23……吸込通路、24……吸込み
ぞ、46,46′……燃料溜め、47……通路延
長部、48……ピストン、49……ばね。
FIG. 1 is a vertical cross-sectional view of a first embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of a valve of the second embodiment. 1...Pump casing, 2...Drive shaft, 3...
...Front cam disc, 4...Cam protrusion, 5...Roller, 6...Coupling, 8...Plunger, 9...
... Barrel, 11 ... Pump working chamber, 12 ... Valve body, 13 ... Valve member, 14 ... Closing spring, 17 ...
...Electromagnet, 18...Coil, 19...Mover, 2
0... Core, 21... Magnet casing, 22...
Sleeve, 23... Suction passage, 24... Suction channel, 46, 46'... Fuel reservoir, 47... Passage extension, 48... Piston, 49... Spring.
Claims (1)
射ポンプのポンプ作業室を1つの放圧室と接続す
る1つの逃がし通路を有し、この逃がし通路の流
通が電磁的に操作される弁を介して制御可能であ
り、この弁が平座弁として構成されていて、その
可動の弁部材13がポンプ作業室11内で支配す
る圧力によつて直接に閉鎖方向への作用を受ける
形式のものにおいて、可動の弁部材13が1つの
閉鎖ばね14によつて閉鎖方向への負荷を受けて
いてアイドル回転時並びに低負荷回転時に電磁石
の可動子によつて開放制御可能であり、電磁石の
可動子は、電磁石の励磁によつて可動の弁部材1
3の開放方向へ動かされ、可動子によつて及ぼさ
れる力が、閉鎖ばね14の力と可動の弁部材13
に弁の開放に伴つて圧力差に基いて作用する燃料
流の力との和よりも大きく設定されており、前記
放圧室が1つの閉ざされた燃料溜め46,46′
として構成されており、燃料溜め46,46′は、
可動の弁部材13の開放に伴つて1つの制御され
る逃がし通路45,47を介してポンプ作業室1
1の燃料の一部を受け入れ、プランジヤ8の各吸
込行程の間この逃がし通路45,47を介して受
入れ燃料の一部をポンプ作業室11へ放圧するこ
とを特徴とする、内燃機関の燃料噴射ポンプ。 2 燃料溜め46′が可撓壁としてばね負荷を受
けたピストン48を有している特許請求の範囲第
1項記載の燃料噴射ポンプ。 3 通路45内に1つの絞り個所が設けられてい
る特許請求の範囲第1項又は第2項記載の燃料噴
射ポンプ。[Scope of Claims] 1. A fuel injection pump for an internal combustion engine, which has one relief passage connecting a pump working chamber of the fuel injection pump with one pressure relief chamber, and the circulation of this relief passage is electromagnetically controlled. controllable via an actuated valve, which is designed as a flat-seat valve, the movable valve member 13 of which is actuated directly in the closing direction by the pressure prevailing in the pump work chamber 11; In the valve receiving type, the movable valve member 13 is loaded in the closing direction by one closing spring 14, and can be controlled to open by an electromagnetic mover during idle rotation and low load rotation. , the movable element of the electromagnet is a valve member 1 movable by the excitation of the electromagnet.
3 in the opening direction, the force exerted by the armature combines the force of the closing spring 14 and the movable valve member 13
is set to be larger than the sum of the force of the fuel flow acting based on the pressure difference upon opening of the valve, and the pressure relief chamber is one closed fuel reservoir 46, 46'.
The fuel reservoirs 46, 46' are configured as follows.
With the opening of the movable valve member 13, the pump work chamber 1 is removed via one controlled relief passage 45, 47.
Fuel injection for an internal combustion engine, characterized in that part of the received fuel is received into the pump working chamber 11 during each suction stroke of the plunger 8 and is depressurized via this relief passage 45, 47 into the pump working chamber 11. pump. 2. Fuel injection pump according to claim 1, wherein the fuel reservoir 46' has a spring-loaded piston 48 as a flexible wall. 3. The fuel injection pump according to claim 1 or 2, wherein one throttle point is provided in the passage 45.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792913909 DE2913909A1 (en) | 1979-04-06 | 1979-04-06 | FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55139965A JPS55139965A (en) | 1980-11-01 |
JPH0310032B2 true JPH0310032B2 (en) | 1991-02-12 |
Family
ID=6067649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4477480A Granted JPS55139965A (en) | 1979-04-06 | 1980-04-07 | Fuel injection pump for internal combustion engine |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS55139965A (en) |
DE (1) | DE2913909A1 (en) |
GB (1) | GB2048373B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474158A (en) * | 1981-11-11 | 1984-10-02 | Lucas Industries Public Limited Company | Liquid fuel pumping apparatus |
DE3151889C2 (en) * | 1981-12-30 | 1983-12-22 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | Fuel injection system on an internal combustion engine |
EP0111200B1 (en) * | 1982-11-25 | 1988-02-03 | Kawasaki Jukogyo Kabushiki Kaisha | Fuel injection timing control system |
DE3248086C2 (en) * | 1982-12-24 | 1986-10-16 | L'Orange GmbH, 7000 Stuttgart | Fuel injection pumps for internal combustion engines, in particular for diesel engines |
JPS60116853A (en) * | 1983-11-26 | 1985-06-24 | Diesel Kiki Co Ltd | Distributor type fuel injection pump |
DE3511492A1 (en) * | 1985-03-29 | 1986-10-09 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injection device for internal combustion engines |
JPS62151681A (en) * | 1985-12-25 | 1987-07-06 | Nippon Denso Co Ltd | Fluid controlling solenoid valve |
DE4002612A1 (en) * | 1990-01-30 | 1991-08-01 | Bosch Gmbh Robert | FUEL INJECTION PUMP |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3661130A (en) * | 1969-03-19 | 1972-05-09 | Bosch Gmbh Robert | Safety device for limiting the rotational speed of internal combustion engines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1180630A (en) * | 1966-08-01 | 1970-02-04 | Peugeot | Improvements in or relating to Fuel Injection Devices for Compression Ignited Internal Combustion Engines |
DE1917927A1 (en) * | 1969-04-09 | 1970-10-29 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engines |
US4129253A (en) * | 1977-09-12 | 1978-12-12 | General Motors Corporation | Electromagnetic unit fuel injector |
-
1979
- 1979-04-06 DE DE19792913909 patent/DE2913909A1/en active Granted
-
1980
- 1980-04-02 GB GB8011024A patent/GB2048373B/en not_active Expired
- 1980-04-07 JP JP4477480A patent/JPS55139965A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3661130A (en) * | 1969-03-19 | 1972-05-09 | Bosch Gmbh Robert | Safety device for limiting the rotational speed of internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
GB2048373B (en) | 1983-05-25 |
JPS55139965A (en) | 1980-11-01 |
DE2913909C2 (en) | 1989-12-14 |
DE2913909A1 (en) | 1980-10-23 |
GB2048373A (en) | 1980-12-10 |
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