JPH0321528U - - Google Patents
Info
- Publication number
- JPH0321528U JPH0321528U JP8010289U JP8010289U JPH0321528U JP H0321528 U JPH0321528 U JP H0321528U JP 8010289 U JP8010289 U JP 8010289U JP 8010289 U JP8010289 U JP 8010289U JP H0321528 U JPH0321528 U JP H0321528U
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- fuel injection
- injection timing
- hydraulic pressure
- advance angle
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図は一実施例による本考案の油圧タイマの
構成説明図、第２図は第１図に使用した遅角装置
の要部説明図、第３図〜第５図は第１図に使用し
たフイードポンプの説明図、第６図は第１図に使
用したフイードポンプと容積型フイードポンプと
の性能特性を説明するグラフ図、第７図は第１図
の油圧タイマの進角特性を説明するグラフ図、第
８図〜第１０図は第１図の油圧タイマの動作を説
明する図、第１１図は別の実施例の要部説明図、
第１２図は従来の油圧タイマの側面図、第１３図
は第１２図の−線矢視断面図、第１
４図は第１２図の油圧タイマの動作説明図である
。
１…油圧タイマ、２…駆動回転軸、４…被駆動
回転軸、１８…ピストン、２２…スプリング、３
４…進角装置、３６…遅角装置、４０…油圧制御
装置、４２…フイードポンプ、４６，４８…油圧
制御弁、θ…位相（進角）、θ１…始動時進角量
、θ２…アイドル時進角量。
Fig. 1 is an explanatory diagram of the configuration of the hydraulic timer of the present invention according to an embodiment, Fig. 2 is an explanatory diagram of the main parts of the retardation device used in Fig. 1, and Figs. 3 to 5 are used in Fig. 1. Figure 6 is a graph explaining the performance characteristics of the feed pump used in Figure 1 and the positive displacement feed pump, Figure 7 is a graph explaining the advance angle characteristics of the hydraulic timer in Figure 1. , FIGS. 8 to 10 are diagrams for explaining the operation of the hydraulic timer in FIG. 1, and FIG. 11 is a diagram for explaining the main parts of another embodiment.
Fig. 12 is a side view of a conventional hydraulic timer, Fig. 13 is a sectional view taken along the - line in Fig. 12, and
FIG. 4 is an explanatory diagram of the operation of the hydraulic timer shown in FIG. 12. DESCRIPTION OF SYMBOLS 1... Hydraulic timer, 2... Driving rotating shaft, 4... Driven rotating shaft, 18... Piston, 22... Spring, 3
4... Advance angle device, 36... Retard angle device, 40... Hydraulic control device, 42... Feed pump, 46, 48... Hydraulic control valve, θ... Phase (advance angle), θ 1 ... Advance angle amount at startup, θ 2 ... Advance angle amount at idle.
Claims (1)
置を回転軸に対し回動可能に嵌装し、前記ピスト
ン装置が油圧より駆動側回転軸に対して被駆動側
回転軸の位相を燃料噴射時期を早める側に変化さ
せる進角手段と、前記油圧がゼロのときに燃料噴
射時期を早める側に変化させ、油圧により燃料噴
射時期を遅くする側に変化させる遅角手段とを直
列に接続し、内燃機関の始動後は前記遅角装置に
進角をゼロにする油圧を供給すると共に、前記進
角装置には運転状態に対応じた油圧を供給する油
圧制御装置を設けた油圧式タイマ。 A hydraulically actuated piston device equipped with a return spring is rotatably fitted to the rotating shaft, and the piston device advances the fuel injection timing by adjusting the phase of the driven rotating shaft with respect to the driving rotating shaft using hydraulic pressure. An advance means for advancing the fuel injection timing when the oil pressure is zero, and a retardation means for changing the fuel injection timing to a later side using the oil pressure are connected in series. The hydraulic timer is provided with a hydraulic control device that supplies hydraulic pressure to zero the advance angle to the retard device after startup, and supplies hydraulic pressure to the advance angle device in accordance with the operating state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8010289U JPH0321528U (en) | 1989-07-10 | 1989-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8010289U JPH0321528U (en) | 1989-07-10 | 1989-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321528U true JPH0321528U (en) | 1991-03-04 |
Family
ID=31624859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8010289U Pending JPH0321528U (en) | 1989-07-10 | 1989-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321528U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162229A (en) * | 1980-05-19 | 1981-12-14 | Diesel Kiki Co Ltd | Timer system for fuel injection pump |
-
1989
- 1989-07-10 JP JP8010289U patent/JPH0321528U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162229A (en) * | 1980-05-19 | 1981-12-14 | Diesel Kiki Co Ltd | Timer system for fuel injection pump |
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