JPH0313463U - - Google Patents
Info
- Publication number
- JPH0313463U JPH0313463U JP7407489U JP7407489U JPH0313463U JP H0313463 U JPH0313463 U JP H0313463U JP 7407489 U JP7407489 U JP 7407489U JP 7407489 U JP7407489 U JP 7407489U JP H0313463 U JPH0313463 U JP H0313463U
- Authority
- JP
- Japan
- Prior art keywords
- check valve
- fuel
- supply chamber
- injection pump
- fuel supply
- 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 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１〜２図は本考案の第１実施例で、第１図は
燃料噴射ポンプの縦断面（第２図の−断面図
）、第２図は第１図の−断面図、第３〜４図
は第２実施例で、第３図は第１図応当図、第４図
は第３図の−断面図、第５図は第１〜２実施
例の作用説明図、第６〜１０図は従来例で、第６
図は給油系統図、第７図は第１図応当図、第８図
は第７図の−断面図、第９図は給油圧力を変
えたときの給油圧力及び噴射圧力の変化状況図、
第１０図は給油枝管部に絞りを入れたときの給油
室圧力及び噴射圧力の変化状況図である。
２……プランジヤバレル、３……プランジヤ、
８……プランジヤ室、１３……給油室、２２……
逆止弁、２３……絞り孔、３２……電磁逆止弁、
３３……絞り孔、４０……給油管路。
Figures 1 and 2 show a first embodiment of the present invention, in which Figure 1 is a vertical cross-section of a fuel injection pump (-cross-sectional view of Figure 2), Figure 2 is a cross-sectional view of Figure 1, and Figures 3-2 are cross-sectional views of the fuel injection pump. 4 is a second embodiment, FIG. 3 is a diagram corresponding to FIG. 1, FIG. 4 is a cross-sectional view of FIG. The figure shows a conventional example,
The figure is an oil supply system diagram, Figure 7 is a diagram corresponding to Figure 1, Figure 8 is a cross-sectional view of Figure 7, and Figure 9 is a diagram of changes in oil supply pressure and injection pressure when the oil supply pressure is changed.
FIG. 10 is a diagram showing changes in the oil supply chamber pressure and injection pressure when the oil supply branch pipe section is throttled. 2... Plunger barrel, 3... Plunger,
8...Plunger room, 13...Refueling room, 22...
Check valve, 23... Throttle hole, 32... Electromagnetic check valve,
33... Throttle hole, 40... Oil supply pipe.
Claims (1)
プの供給室入口に絞り孔を持ち且給油管路から給
油室方向への燃料流れのみを許容する逆止弁を設
けたことを特徴とする給油室入口に逆止弁を備え
た燃料噴射ポンプ。 (2) 前記逆止弁が電磁逆止弁である請求項１記
載の給油室入口に逆止弁を備えた燃料噴射ポンプ
。[Scope of Claim for Utility Model Registration] (1) A check valve that has a throttle hole at the inlet of the supply chamber of a fuel injection pump supplied to a diesel engine, etc. and that only allows fuel to flow from the fuel supply pipe toward the fuel supply chamber. A fuel injection pump equipped with a check valve at the entrance of the fuel supply chamber. (2) The fuel injection pump equipped with a check valve at the entrance of the fuel supply chamber according to claim 1, wherein the check valve is an electromagnetic check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7407489U JPH0313463U (en) | 1989-06-24 | 1989-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7407489U JPH0313463U (en) | 1989-06-24 | 1989-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0313463U true JPH0313463U (en) | 1991-02-12 |
Family
ID=31613449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7407489U Pending JPH0313463U (en) | 1989-06-24 | 1989-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0313463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011132965A (en) * | 2011-04-07 | 2011-07-07 | Yanmar Co Ltd | Suction pipe for fuel injection pump |
| JP2015098849A (en) * | 2013-11-20 | 2015-05-28 | 株式会社デンソー | High pressure pump |
-
1989
- 1989-06-24 JP JP7407489U patent/JPH0313463U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011132965A (en) * | 2011-04-07 | 2011-07-07 | Yanmar Co Ltd | Suction pipe for fuel injection pump |
| JP2015098849A (en) * | 2013-11-20 | 2015-05-28 | 株式会社デンソー | High pressure pump |
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