JPS6245074Y2 - - Google Patents
Info
- Publication number
- JPS6245074Y2 JPS6245074Y2 JP13926680U JP13926680U JPS6245074Y2 JP S6245074 Y2 JPS6245074 Y2 JP S6245074Y2 JP 13926680 U JP13926680 U JP 13926680U JP 13926680 U JP13926680 U JP 13926680U JP S6245074 Y2 JPS6245074 Y2 JP S6245074Y2
- Authority
- JP
- Japan
- Prior art keywords
- governor
- camshaft
- pump
- fuel
- timer
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 35
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
【考案の詳細な説明】
本考案は、エンジンの燃料噴射ポンプ駆動装置
の改良に関し、燃料カム軸の余端側に設けた進角
タイマーの突出量を抑えてエンジン全体を小型化
し、ガバナ装置及び進角タイマーをエンジン本体
に固設するポンプハウジング内に簡単に組付けら
れるようにすることを目的とする。[Detailed description of the invention] The present invention relates to an improvement of the fuel injection pump drive device of an engine.The projecting amount of the advance timer provided on the remaining end of the fuel camshaft is suppressed to reduce the size of the entire engine, and the governor device and The purpose of the present invention is to enable an advance angle timer to be easily assembled into a pump housing fixed to an engine body.
従来、ポンプ駆動装置は、エンジン本体に固設
したポンプハウジング内に、フランジ形燃料噴射
ポンプを燃料カム軸及びガバナ装置と共に収容
し、その外側に進角タイマー収容量を設け、更に
外側に調時駆動装置を設けているため、駆動装置
がポンプハウジングから大きく突出してしまい、
エンジン全体が嵩張つたものになる。 Conventionally, a pump drive device houses a flange-type fuel injection pump together with a fuel camshaft and a governor device in a pump housing that is fixed to the engine body, and an advance timer housing is provided on the outside of the flange-type fuel injection pump, and a timing adjustment device is provided on the outside of the flange-type fuel injection pump. Because the drive device is installed, the drive device protrudes significantly from the pump housing,
The entire engine becomes bulky.
又、ポンプハウジング内へガバナ装置や進角タ
イマーを備えた燃料カム軸が支持され、これと噛
み合うように燃料噴射ポンプを取付ける必要があ
り、装置全体の組付けが容易ではなかつた。 Furthermore, a fuel camshaft equipped with a governor device and an advance timer is supported within the pump housing, and it is necessary to mount the fuel injection pump so as to mesh with this, making it difficult to assemble the entire device.
本考案は以上の諸欠点を解消するもので、エン
ジン本体に固設したポンプハウジングの直交状に
隣り合う二つの壁面の一方にはポンプ組付孔を、
他方にはカム軸組込孔を明けた凹部を設けて、燃
料噴射ポンプをポンプ組付孔から内嵌し、燃料カ
ム軸及びガバナ装置をカム軸組込孔へ挿入した後
に、軸受箱をカム軸組込孔に内嵌することにより
組付けがきわめて簡単となる上、上記ポンプハウ
ジングの他壁面に設けた凹部内に進角タイマーの
少なくとも一部を侵入させて、タイマーのポンプ
ハウジング外への突出量を抑制して、エンジン全
体を小型化するものである。 The present invention solves the above-mentioned drawbacks, and includes a pump assembly hole in one of the two orthogonally adjacent walls of the pump housing fixed to the engine body.
On the other side, a recess with a camshaft installation hole is provided, and after fitting the fuel injection pump into the pump installation hole and inserting the fuel camshaft and governor device into the camshaft installation hole, the bearing box is inserted into the camshaft installation hole. In addition to being extremely easy to assemble by fitting into the shaft assembly hole, at least a portion of the advance timer can be inserted into the recess provided on the other wall of the pump housing to prevent the timer from exiting the pump housing. This reduces the amount of protrusion and reduces the overall size of the engine.
以下、本考案を図面に基いて説明する。 Hereinafter, the present invention will be explained based on the drawings.
第１図はエンジンの略示縦断面による機構図、
第２図は第１図における−線拡大断面図であ
る。２はクランク軸、２１はピストン、２２は動
弁装置、１はフランジ形燃料噴射ポンプ、２４は
燃料噴射ノズル、２５はクランクプーリーであ
る。動弁装置２２を駆動する動弁カム軸２３及び
燃料噴射ポンプ１を駆動する燃料カム軸３は、
各々クランクプーリー２５と連動している。 Figure 1 is a schematic longitudinal cross-sectional view of the engine;
FIG. 2 is an enlarged sectional view taken along the - line in FIG. 1. 2 is a crankshaft, 21 is a piston, 22 is a valve train, 1 is a flange type fuel injection pump, 24 is a fuel injection nozzle, and 25 is a crank pulley. The valve train camshaft 23 that drives the valve train 22 and the fuel camshaft 3 that drives the fuel injection pump 1 are
Each is interlocked with the crank pulley 25.
エンジン本体２０にはポンプハウジング１０を
固設して、ポンプハウジング１０の直交状に隣り
合う二つの壁面の一方１０ａにポンプ組付孔１１
を明け、他方の壁面１０ｂに凹部１２を形成し
て、この凹部１２の奥端壁１２ａにカム軸組込孔
１３を明ける。 A pump housing 10 is fixed to the engine body 20, and a pump assembly hole 11 is provided in one 10a of two orthogonally adjacent walls of the pump housing 10.
A recess 12 is formed in the other wall surface 10b, and a camshaft insertion hole 13 is formed in the inner wall 12a of the recess 12.
燃料カム軸３には余端側から調時回転伝達装置
５、進角タイマー４及びガバナ装置５０が連動連
結している。即ち、燃料カム軸３の一端３ａには
ガバナ取付軸部１４及びタイマ取付軸部１５を一
連に形成し、ガバナ取付軸部１４にガバナ１６を
外嵌状に組付け、タイマ取付軸部１５には進角タ
イマー４を取付ける。 A timing rotation transmission device 5, an advance timer 4, and a governor device 50 are interlocked and connected to the fuel camshaft 3 from the remaining end side. That is, a governor mounting shaft 14 and a timer mounting shaft 15 are formed in series on one end 3a of the fuel camshaft 3, a governor 16 is fitted onto the governor mounting shaft 14, and a governor 16 is fitted onto the timer mounting shaft 15. Install advance angle timer 4.
調時回転伝達装置５は進角タイマーの駆動フラ
ンジ側に固着したプーリー３１に、タイミングベ
ルト３２が巻装している。 In the timing rotation transmission device 5, a timing belt 32 is wound around a pulley 31 fixed to the drive flange side of the advance timer.
進角タイマー４は、燃料噴射時期の調整を行な
うもので、タイマハブ４１、駆動フランジ４２、
タイマウエイト４３及びスプリングから成り、駆
動フランジ４２に固定されたジヤーナル４４とタ
イマハブ４１のピンとの間に介装されて、このピ
ンにウエイト４３が嵌入している。そして、取付
軸１５の回転速度が大きくなるとタイマウエイト
４３は上記ピンを中心として外方に広がり、ウエ
イトのジヤーナル４４に接する曲面は、ウエイト
４３の広がりに従つてジヤーナルとピンの距離が
短くなるように形成されており、結果的にスプリ
ングが短縮した分、燃料噴射カム３が進角する。 The advance angle timer 4 adjusts the fuel injection timing, and includes a timer hub 41, a drive flange 42,
It consists of a timer weight 43 and a spring, and is interposed between a journal 44 fixed to the drive flange 42 and a pin of the timer hub 41, and the weight 43 is fitted into this pin. When the rotation speed of the mounting shaft 15 increases, the timer weight 43 spreads outward around the pin, and the curved surface of the weight in contact with the journal 44 is such that as the weight 43 spreads, the distance between the journal and the pin becomes shorter. As a result, the fuel injection cam 3 is advanced by the amount that the spring is shortened.
ガバナ装置５０は、燃料噴射量の調整を行なう
もので、遠心ボール式のガバナ１６を用い、この
調速動作をガバナレバー８を介してコントロール
ラツク６に伝えるように構成すると共に、燃料噴
射ポンプ１に隣り合う位置にアクセルレバー５１
を配置して、これの動作をガバナスプリング７と
副ガバナレバー５２を介して、ガバナレバー８に
伝えるようにしてある。そして、ガバナの取付軸
部１４には軸受１４ａ及び軸受箱１４ｂを順に外
嵌し、ガバナレバー８を軸受箱１４ｂに揺動自在
に枢支している。従つて、燃料噴射ポンプ１のラ
ツク６は、ガバナスプリング７の張力Ｆとガバナ
フオースＨとの釣合いにより、ガバナレバー８を
介して燃料制御移動可能に構成している。今、ガ
バナ取付軸部１４の回転が大きくなると、ガバナ
１６によつて左方に付勢されるガバナフオースＨ
が働いてガバナレバー８を揺動させて、燃料減量
側に傾ける。 The governor device 50 adjusts the fuel injection amount, and uses a centrifugal ball type governor 16 and is configured to transmit this speed regulating operation to the control rack 6 via the governor lever 8. Accelerator lever 51 in adjacent position
is arranged so that its operation is transmitted to the governor lever 8 via the governor spring 7 and the sub-governor lever 52. A bearing 14a and a bearing box 14b are sequentially fitted onto the mounting shaft portion 14 of the governor, and the governor lever 8 is swingably supported on the bearing box 14b. Therefore, the rack 6 of the fuel injection pump 1 is configured to be movable under fuel control via the governor lever 8 by balancing the tension F of the governor spring 7 with the governor force H. Now, when the rotation of the governor mounting shaft 14 increases, the governor force H is biased leftward by the governor 16.
operates to swing the governor lever 8 and tilt it toward the fuel reduction side.
燃料噴射ポンプ１の胴部１ａには頭部フランジ
１ｂを有し、ポンプハウジング１０に設けたポン
プ組付孔１１からその胴部１ｂを挿入して、フラ
ンジ１ｂによつて、一方の壁面１０ａに固定す
る。 The body part 1a of the fuel injection pump 1 has a head flange 1b, and the body part 1b is inserted through the pump assembly hole 11 provided in the pump housing 10, and the body part 1b is attached to one wall surface 10a by the flange 1b. Fix it.
従つて、本考案の作用を説明すると、ポンプハ
ウジング１０内に駆動装置を組み付けるときに
は、燃料カム軸３、ガバナ１６及びガバナレバー
８をカム軸組込孔１３からポンプハウジング１０
内に挿入し、軸受箱１４ｂをカム軸組入孔１３に
内嵌して固定し、一方、ポンプ組付孔１１から燃
料噴射ポンプ１を挿入するだけでよい。 Therefore, to explain the operation of the present invention, when assembling the drive device into the pump housing 10, the fuel camshaft 3, governor 16, and governor lever 8 are inserted into the pump housing 10 through the camshaft installation hole 13.
It is only necessary to insert the bearing box 14b into the cam shaft assembly inlet hole 13 and fix it therein, while inserting the fuel injection pump 1 through the pump assembly hole 11.
以上のように、本考案は、上記カム軸組込孔１
３には、カム軸、軸受及び軸受箱の３要素を組み
合わせて嵌挿しており、又、ガバナレバー８の一
端は、この軸受箱に枢支していることによつて、
駆動装置のポンプハウジング内への組付けをきわ
めて簡単に、且つ、スムーズに行なうことができ
る。 As described above, the present invention provides the above-mentioned camshaft installation hole 1.
3 is fitted with a combination of three elements: a camshaft, a bearing, and a bearing box, and one end of the governor lever 8 is pivotally supported on this bearing box.
The drive device can be assembled into the pump housing extremely easily and smoothly.
更に、ポンプハウジングのタイマー設置側の側
壁は、内側方向に凹部を設けているので進角タイ
マーをその分ポンプハウジングの方に挿入して、
進角タイマー及びその外側に位置する調時回転伝
動装置をポンプハウジング方向になるべく収容し
て、エンジン自体を小型化でき、材料費を節減で
きる。 Furthermore, the side wall of the pump housing on the side where the timer is installed has a recessed part towards the inside, so the advance timer can be inserted into the pump housing accordingly.
By accommodating the advance angle timer and the timing rotation transmission device located outside thereof as far as possible toward the pump housing, the engine itself can be downsized and material costs can be reduced.
図は本考案の実施例を示すもので、第１図はエ
ンジンの略示縦断面の機構説明図、第２図は第１
図の−線拡大断面図である。
１……燃料噴射ポンプ、１ａ……胴部、１ｂ…
…頭部フランジ、２……クランク軸、３……燃料
カム軸、４……進角タイマー、５……調時回転伝
動装置、６……ラツク、７……ガバナスプリン
グ、８……ガバナレバー、１０……ポンプハウジ
ング、１０ａ，１０ｂ……壁面、１１……ポンプ
組付孔、１２……凹部、１３……カム軸組込孔、
１４……ガバナ取付軸部、１４ａ……軸受、１４
ｂ……軸受箱、１５……タイマ取付軸部、１６…
…ガバナ、Ｆ……スプリング張力、Ｈ……ガバナ
フオース。
The figures show an embodiment of the present invention, in which Fig. 1 is a mechanical explanatory diagram of a schematic longitudinal section of the engine, and Fig. 2 is a mechanical explanatory diagram of the engine.
It is a - line enlarged sectional view of a figure. 1...fuel injection pump, 1a...body, 1b...
... Head flange, 2 ... Crankshaft, 3 ... Fuel camshaft, 4 ... Advance angle timer, 5 ... Timing rotation transmission, 6 ... Rack, 7 ... Governor spring, 8 ... Governor lever, 10...Pump housing, 10a, 10b...Wall surface, 11...Pump assembly hole, 12...Recess, 13...Camshaft assembly hole,
14...Governor mounting shaft portion, 14a...Bearing, 14
b...Bearing box, 15...Timer mounting shaft, 16...
...Governor, F...Spring tension, H...Governor force.
Claims (1)
ンク軸２に、燃料カム軸３、進角タイマー４及び
調時回転伝動装置５を介して連動連結し、燃料噴
射ポンプ１のラツク６をガバナスプリング７の張
力ＦとガバナフオースＨとの釣合いにより、ガバ
ナレバー８を介して燃料制御移動可能に構成し、
エンジン本体２０にポンプハウジング１０を固設
し、ポンプハウジング１０の直交状に隣り合う二
つの壁面の一方１０ａにポンプ組付孔１１を明
け、他方１０ｂに凹部１２を形成し、この凹部１
２の奥端壁１２ａにカム軸組込孔１３を明け、燃
料噴射ポンプ１の胴部１ａをポンプ組付孔１１か
らポンプハウジング１０内に挿入して、その頭部
フランジ１ｂを一方の壁面１０ａに固定し、燃料
カム軸３の一端３ａにガバナ取付軸部１４及びタ
イマ取付軸部１５を一連に形成し、ガバナ取付軸
部１４にガバナ１６を外嵌状に組付け、軸部１４
に軸受１４ａ及び軸受箱１４ｂを順に外嵌し、ガ
バナレバー８をガバナ１６に伝動係合すると共に
軸受箱１４ｂに揺動自在に枢支し、タイマ取付軸
部１５に進角タイマー４を取付け、燃料カム軸
３、ガバナ１６及びガバナレバー８をカム軸組込
孔１３からポンプハウジング１０内に挿入し、軸
受箱１４ｂをカム軸組込孔１３に内嵌して固定
し、ポンプハウジング１０の前記他方の壁面１０
ｂの凹部１２内に進角タイマー４の少なくとも一
部を侵入させた事を特徴とするエンジンの燃料噴
射ポンプ駆動装置。 A flange-type fuel injection pump 1 of the engine is interlocked and connected to a crankshaft 2 via a fuel camshaft 3, an advance timer 4, and a timing rotation transmission 5. Due to the balance between F and the governor force H, the fuel can be controlled and moved via the governor lever 8,
A pump housing 10 is fixed to an engine body 20, and a pump assembly hole 11 is formed in one 10a of two orthogonally adjacent wall surfaces of the pump housing 10, and a recess 12 is formed in the other 10b.
A cam shaft assembly hole 13 is formed in the rear end wall 12a of the fuel injection pump 1, and the body part 1a of the fuel injection pump 1 is inserted into the pump housing 10 through the pump assembly hole 11, and the head flange 1b is inserted into the one wall surface 10a. A governor mounting shaft portion 14 and a timer mounting shaft portion 15 are formed in series on one end 3a of the fuel camshaft 3, and a governor 16 is assembled to the governor mounting shaft portion 14 in an externally fitted manner.
The bearing 14a and the bearing box 14b are sequentially fitted to the outside, the governor lever 8 is transmission-engaged with the governor 16, and is swingably pivoted to the bearing box 14b, the advance timer 4 is attached to the timer mounting shaft 15, and the fuel The camshaft 3, the governor 16, and the governor lever 8 are inserted into the pump housing 10 through the camshaft installation hole 13, and the bearing box 14b is fitted into the camshaft installation hole 13 and fixed. Wall surface 10
A fuel injection pump drive device for an engine, characterized in that at least a part of an advance timer 4 is inserted into a recess 12 of FIG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926680U JPS6245074Y2 (en) | 1980-09-29 | 1980-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926680U JPS6245074Y2 (en) | 1980-09-29 | 1980-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5761165U JPS5761165U (en) | 1982-04-10 |
| JPS6245074Y2 true JPS6245074Y2 (en) | 1987-12-01 |
Family
ID=29499248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13926680U Expired JPS6245074Y2 (en) | 1980-09-29 | 1980-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245074Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190971U (en) * | 1984-05-30 | 1985-12-18 | 自動車部品工業株式会社 | fuel injector |
-
1980
- 1980-09-29 JP JP13926680U patent/JPS6245074Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5761165U (en) | 1982-04-10 |
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