JPS6342837U - - Google Patents
Info
- Publication number
- JPS6342837U JPS6342837U JP13729186U JP13729186U JPS6342837U JP S6342837 U JPS6342837 U JP S6342837U JP 13729186 U JP13729186 U JP 13729186U JP 13729186 U JP13729186 U JP 13729186U JP S6342837 U JPS6342837 U JP S6342837U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- fuel injection
- injection pump
- low pressure
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000295 fuel oil Substances 0.000 claims 1
Landscapes
- Safety Valves (AREA)
- Measuring Volume Flow (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の燃料噴射ポンプのタイマ装
置の好適一実施例を示す縦断面図、第２図は第１
図の要部詳細断面図、第３図は噴射ポンプの性能
を示すグラフ、第４図は従来例を示す要部詳細図
である。
図中、１は燃料噴射ポンプ、２はケーシング、
３はチヤンバ、４はフイードポンプ、２０はタイ
マケーシング、２１はタイマピストン、２５は高
圧室、２６は低圧室、３０はリークオフ通路、３
１はオリフイス、３２はリリーフ弁である。
FIG. 1 is a vertical sectional view showing a preferred embodiment of the timer device for a fuel injection pump of this invention, and FIG.
3 is a graph showing the performance of the injection pump, and FIG. 4 is a detailed view of the main part showing a conventional example. In the figure, 1 is a fuel injection pump, 2 is a casing,
3 is a chamber, 4 is a feed pump, 20 is a timer casing, 21 is a timer piston, 25 is a high pressure chamber, 26 is a low pressure chamber, 30 is a leak-off passage, 3
1 is an orifice, and 32 is a relief valve.
Claims (1)
ピストンの一方に燃料噴射ポンプのチヤンバに連
通される高圧室を、他方にフイードポンプの低圧
側に連通される低圧室を形成し、上記高圧室の燃
料油圧が所定値を越えたときに低圧室へ燃料を逃
すリークオフ通路を形成した燃料噴射ポンプのタ
イマ装置。 (2) 上記リークオフ通路が低圧室側にオリフイ
スを有する上記実用新案登録請求の範囲第１項記
載の燃料噴射ポンプのタイマ装置。 (3) 上記リークオフ通路が高圧室側にリリーフ
弁または電磁開閉弁等の定圧弁手段を有する上記
実用新案登録請求の範囲第１項または２項いずれ
かに記載の燃料噴射ポンプのタイマ装置。[Scope of Claim for Utility Model Registration] (1) A reciprocating timer piston in the timer casing has a high pressure chamber communicating with the chamber of the fuel injection pump on one side, and a low pressure chamber communicating with the low pressure side of the feed pump on the other side. A timer device for a fuel injection pump, wherein a leak-off passage is formed to release fuel to a low pressure chamber when fuel oil pressure in the high pressure chamber exceeds a predetermined value. (2) The timer device for a fuel injection pump according to claim 1, wherein the leak-off passage has an orifice on the low pressure chamber side. (3) The timer device for a fuel injection pump according to claim 1 or 2, wherein the leak-off passage has constant pressure valve means such as a relief valve or an electromagnetic on-off valve on the high pressure chamber side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986137291U JPH064044Y2 (en) | 1986-09-09 | 1986-09-09 | Fuel injection pump timer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986137291U JPH064044Y2 (en) | 1986-09-09 | 1986-09-09 | Fuel injection pump timer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342837U true JPS6342837U (en) | 1988-03-22 |
| JPH064044Y2 JPH064044Y2 (en) | 1994-02-02 |
Family
ID=31041208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986137291U Expired - Lifetime JPH064044Y2 (en) | 1986-09-09 | 1986-09-09 | Fuel injection pump timer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064044Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104332A (en) * | 1981-12-05 | 1983-06-21 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Fuel jet pump for internal combustion engine |
-
1986
- 1986-09-09 JP JP1986137291U patent/JPH064044Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104332A (en) * | 1981-12-05 | 1983-06-21 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Fuel jet pump for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH064044Y2 (en) | 1994-02-02 |
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