JPS63125143U - - Google Patents
Info
- Publication number
- JPS63125143U JPS63125143U JP1663787U JP1663787U JPS63125143U JP S63125143 U JPS63125143 U JP S63125143U JP 1663787 U JP1663787 U JP 1663787U JP 1663787 U JP1663787 U JP 1663787U JP S63125143 U JPS63125143 U JP S63125143U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- low
- hydraulic oil
- plunger
- pump
- 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
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図は従来の燃料噴射ポンプの縦断面図、第
２図は本考案の一実施例の側面図、第３図は第２
図の方向の側面図、第４図は本考案の一実施例
のパワーブースタ３１の拡大断面図、第５図はパ
イロツトバルブ４３の斜視図、第６図は噴射タイ
ミングコントロールラツク２５を右方に移動する
ために稼動ロツド４４を右方に移動した瞬間の拡
大断面図、第７図は噴射タイミングコントロール
ラツク２５を左方に移動させるために稼動ロツド
４４を左方に移動した瞬間の拡大断面図である。
１……燃料噴射ポンプ、２……ポンプ本体、３
……バルブ機構、４……燃料出口、５……燃料吐
出通路、６……燃料戻し通路、７……高圧燃料通
路、８……バルブシート、９……プランジヤバレ
ル、１０……回止め溝、１１……バレル位置決め
ボルト、１２……プランジヤ、１３……燃料溜り
室、１４……燃料吸排孔、１５……燃料圧室、１
６……スプリング、１７……カム、１８……リー
ド、１９……ドライビングフエース部、２０……
係合溝、２１……噴射量コントロールスリーブ、
２２……噴射量コントロールラツク、２３……ね
じ部、２４……噴射タイミングコントロールスリ
ーブ、２５……噴射タイミングコントロールラツ
ク、２６……噴射タイミングコントロールスリー
ブの位置決め用ボルト、３０……燃料噴射ポンプ
、３１……パワーブースタ、３２……収納筒部、
３３……通しボルト、３４……シリンダ、３５…
…カバー、３６……低圧室、３７……ランド、３
８……隔壁部、３９……高圧室、４０……ドレー
ン室、４１……内孔、４２……リターンスプリン
グ、４３……パイロツトバルブ、４４……稼動ロ
ツド、４５……Ｏリング、４６……ブツシユ、４
７……シールリング、４８……ストツパ、５１…
…第一ランド、５２……第二ランド、５３……第
三ランド、５４……低圧通路、５５……高圧通路
、５６……内通路、５７……開孔、５８……切欠
き部、６０……低圧貫通孔、６１……閉鎖片、６
２……連通孔、６３……高圧貫通孔、７０……給
油孔、７１……作動油タンク、７２……モータ、
７３……減圧弁、７４……油圧ポンプ、７５……
ドレーン孔、７６……ドレーン、Ｈ……高圧室３
９内の圧力、Ｌ……低圧室３６内の圧力、Ｎ……
ランド３７の高圧室３９側の面積、Ｗ……ランド
３７の低圧室３６側の面積、Ｆ……出力。
Fig. 1 is a vertical cross-sectional view of a conventional fuel injection pump, Fig. 2 is a side view of an embodiment of the present invention, and Fig. 3 is a longitudinal sectional view of a conventional fuel injection pump.
4 is an enlarged sectional view of the power booster 31 according to an embodiment of the present invention, FIG. 5 is a perspective view of the pilot valve 43, and FIG. 6 is a side view of the injection timing control rack 25 to the right. FIG. 7 is an enlarged sectional view at the moment when the operating rod 44 is moved to the right to move the injection timing control rack 25 to the left. It is. 1...Fuel injection pump, 2...Pump body, 3
... Valve mechanism, 4 ... Fuel outlet, 5 ... Fuel discharge passage, 6 ... Fuel return passage, 7 ... High pressure fuel passage, 8 ... Valve seat, 9 ... Plunger barrel, 10 ... Detent groove , 11... Barrel positioning bolt, 12... Plunger, 13... Fuel reservoir chamber, 14... Fuel intake/discharge hole, 15... Fuel pressure chamber, 1
6... Spring, 17... Cam, 18... Lead, 19... Driving face part, 20...
Engagement groove, 21... injection amount control sleeve,
22...Injection amount control rack, 23...Threaded portion, 24...Injection timing control sleeve, 25...Injection timing control rack, 26...Injection timing control sleeve positioning bolt, 30...Fuel injection pump, 31 ...Power booster, 32...Storage tube section,
33...Through bolt, 34...Cylinder, 35...
...Cover, 36...Low pressure chamber, 37...Land, 3
8... Partition wall portion, 39... High pressure chamber, 40... Drain chamber, 41... Inner hole, 42... Return spring, 43... Pilot valve, 44... Operating rod, 45... O ring, 46... ...Butsuyu, 4
7... Seal ring, 48... Stopper, 51...
...first land, 52...second land, 53...third land, 54...low pressure passage, 55...high pressure passage, 56...inner passage, 57...opening, 58...notch, 60...Low pressure through hole, 61...Closing piece, 6
2... Communication hole, 63... High pressure through hole, 70... Oil supply hole, 71... Hydraulic oil tank, 72... Motor,
73...Pressure reducing valve, 74...Hydraulic pump, 75...
Drain hole, 76...Drain, H...High pressure chamber 3
Pressure inside 9, L... Pressure inside low pressure chamber 36, N...
Area of the land 37 on the high pressure chamber 39 side, W... Area of the land 37 on the low pressure chamber 36 side, F... Output.
Claims (1)
プ本体と、 このポンプ本体に往復動可能に収納したプラン
ジヤバレルと、 このプランジヤバレルに往復動可能および回転
可能に収納したプランジヤと、 このプランジヤの前記プランジヤバレルに対す
る相対位置を調節する噴射タイミング調節機構と
を有する燃料噴射ポンプであつて、 前記噴射タイミング調節機構のタイミングコン
トロールラツクに往復動可能に収納したパイロツ
トバルブと、 前記タイミングコントロールラツクを押圧可能
な作動油の高圧室および低圧室と、 該低圧室と連通可能なドレーン室と、 前記高圧室および低圧室に作動油を供給する油
圧ポンプと、 所定の噴射タイミング調節制御信号によるパイ
ロツトバルブの作動に応じて、前記低圧室と前記
ドレーン室とを、あるいは前記高圧室と前記低圧
室とを連通し、前記タイミングコントロールラツ
クを前記作動油の押圧力により移動可能とする作
動油の連通路と、 を設けたことを特徴とする燃料噴射ポンプ。[Scope of Claim for Utility Model Registration] A pump body equipped with a valve mechanism having a fuel outlet, a plunger barrel housed in the pump body in a reciprocating manner, and a plunger housed in the plunger barrel in a reciprocating and rotatable manner. , a fuel injection pump having an injection timing adjustment mechanism that adjusts the relative position of the plunger with respect to the plunger barrel, the pilot valve being reciprocally housed in a timing control rack of the injection timing adjustment mechanism; and the timing control. A high-pressure chamber and a low-pressure chamber for hydraulic oil that can press the rack; a drain chamber that can communicate with the low-pressure chamber; a hydraulic pump that supplies hydraulic oil to the high-pressure chamber and the low-pressure chamber; and a predetermined injection timing adjustment control signal. Hydraulic oil that communicates the low pressure chamber and the drain chamber or the high pressure chamber and the low pressure chamber in accordance with the operation of the pilot valve, and allows the timing control rack to be moved by the pressing force of the hydraulic oil. A fuel injection pump characterized by having a communication passage and the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1663787U JPH0639093Y2 (en) | 1987-02-09 | 1987-02-09 | Fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1663787U JPH0639093Y2 (en) | 1987-02-09 | 1987-02-09 | Fuel injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125143U true JPS63125143U (en) | 1988-08-16 |
| JPH0639093Y2 JPH0639093Y2 (en) | 1994-10-12 |
Family
ID=30808678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1663787U Expired - Lifetime JPH0639093Y2 (en) | 1987-02-09 | 1987-02-09 | Fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639093Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102906326A (en) * | 2010-05-21 | 2013-01-30 | 株式会社东芝 | Damper, washing machine, and washing/drying machine |
-
1987
- 1987-02-09 JP JP1663787U patent/JPH0639093Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102906326A (en) * | 2010-05-21 | 2013-01-30 | 株式会社东芝 | Damper, washing machine, and washing/drying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639093Y2 (en) | 1994-10-12 |
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