JPS63115543U - - Google Patents
Info
- Publication number
- JPS63115543U JPS63115543U JP11393786U JP11393786U JPS63115543U JP S63115543 U JPS63115543 U JP S63115543U JP 11393786 U JP11393786 U JP 11393786U JP 11393786 U JP11393786 U JP 11393786U JP S63115543 U JPS63115543 U JP S63115543U
- Authority
- JP
- Japan
- Prior art keywords
- governor
- fuel injection
- fuel
- sleeve
- pressure
- 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 description 13
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第1図は本考案の第1の実施例における燃料噴
射ポンプの全体断面図、第2図はその要部断面図
、第3図は作動状態を説明する要部断面図、第4
図は燃料噴射時期の進角特性を示す説明図、第5
図は本考案の第2の実施例における燃料噴射ポン
プの要部断面図である。
1……フイードポンプ、5……ポンプ室、10
……スピードタイマ機構、12……ガバナシヤフ
ト、17……ガバナスリーブ、23……テンシヨ
ンレバー、28……燃料逃し通路、29……ポー
ト、30……ガバナ装置、31……ロードタイマ
機構、32,40……加速時進角機構、33……
オリフイス、34……ダンパ室、35,41……
開閉部材、47,42……スプリング。
Fig. 1 is an overall sectional view of a fuel injection pump according to a first embodiment of the present invention, Fig. 2 is a sectional view of its main parts, Fig. 3 is a sectional view of main parts explaining the operating state, and Fig. 4
The figure is an explanatory diagram showing the advance characteristics of fuel injection timing.
The figure is a sectional view of essential parts of a fuel injection pump according to a second embodiment of the present invention. 1...Feed pump, 5...Pump room, 10
... Speed timer mechanism, 12 ... Governor shaft, 17 ... Governor sleeve, 23 ... Tension lever, 28 ... Fuel relief passage, 29 ... Port, 30 ... Governor device, 31 ... Load timer mechanism, 32 , 40... Advance angle mechanism during acceleration, 33...
Orifice, 34... Damper room, 35, 41...
Opening/closing member, 47, 42...spring.
Claims (1)
当接するガバナスリーブが摺動自在に嵌挿され、
該ガバナスリーブに開口された圧力調整用のポー
トと所定負荷以下の時に連通してポンプ内の燃料
圧を低圧側に開放する燃料逃し通路が前記ガバナ
シヤフトに形成され、ガバナスリーブの移動に対
応して燃料噴射量および燃料噴射時期を制御する
ようにした分配型燃料噴射ポンプにおいて、前記
ガバナシヤフト先端部とガバナスリーブ間にオリ
フイスを介して燃料が流出入するダンパ室が形成
されるとともに、該ダンパ室の圧力が急上昇した
時に前記燃料逃し通路を閉じて燃料噴射時期を進
角する開閉部材が設けられたことを特徴とする分
配型燃料噴射ポンプ。 A governor sleeve whose tip abuts the governor lever is slidably fitted around the outer circumference of the governor shaft.
A fuel relief passage is formed in the governor shaft and communicates with a pressure adjustment port opened in the governor sleeve when the load is below a predetermined value to release the fuel pressure in the pump to the low pressure side, and In a distribution type fuel injection pump that controls fuel injection amount and fuel injection timing, a damper chamber is formed between the governor shaft tip and the governor sleeve through which fuel flows in and out via an orifice, and a damper chamber is formed between the governor shaft tip and the governor sleeve. A distribution type fuel injection pump characterized in that an opening/closing member is provided that closes the fuel relief passage and advances fuel injection timing when pressure suddenly increases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11393786U JPS63115543U (en) | 1986-07-24 | 1986-07-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11393786U JPS63115543U (en) | 1986-07-24 | 1986-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63115543U true JPS63115543U (en) | 1988-07-26 |
Family
ID=30996210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11393786U Pending JPS63115543U (en) | 1986-07-24 | 1986-07-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63115543U (en) |
-
1986
- 1986-07-24 JP JP11393786U patent/JPS63115543U/ja active Pending