JPH0317274U - - Google Patents
Info
- Publication number
- JPH0317274U JPH0317274U JP7830689U JP7830689U JPH0317274U JP H0317274 U JPH0317274 U JP H0317274U JP 7830689 U JP7830689 U JP 7830689U JP 7830689 U JP7830689 U JP 7830689U JP H0317274 U JPH0317274 U JP H0317274U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- fuel
- fuel supply
- supply passage
- injection
- 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 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案を適用した燃料噴射ノズルの一
実施例の要部を示す断面図、第２図は第１図に示
す針弁のリフト量が小の場合の作動状態を示す断
面図、第３図は第１図に示す針弁のリフト量が大
の場合の作動状態を示す断面図、第４図は本考案
の他の実施例を示す要部断面図、第５図は第４図
に示す針弁のリフト量が小の場合の作動状態を示
す断面図、第６図は第４図に示す針弁のリフト量
が大の場合の作動状態を示す断面図、第７図は従
来の燃料噴射ノズルの側面図、第８図は第７図の
円で示す部位の拡大断面図である。
１０，１０′……噴射ノズル、１１，１１′…
…ノズルボデイ、１１ｆ，１１ｆ′，１１ｇ，１
１ｇ′……噴射孔、１２，１２′……針弁、１５
……燃料供給路、１７，１７′……油路。
FIG. 1 is a sectional view showing a main part of an embodiment of a fuel injection nozzle to which the present invention is applied, and FIG. 2 is a sectional view showing an operating state when the lift amount of the needle valve shown in FIG. 1 is small. 3 is a sectional view showing the operating state when the lift amount of the needle valve shown in FIG. 1 is large, FIG. Fig. 6 is a sectional view showing the operating state when the needle valve lift amount shown in Fig. 4 is large; Fig. 7 is a sectional view showing the operating state when the needle valve lift amount is large as shown in Fig. 4; FIG. 8 is a side view of a conventional fuel injection nozzle, and is an enlarged sectional view of the portion indicated by the circle in FIG. 7. 10, 10'... injection nozzle, 11, 11'...
...Nozzle body, 11f, 11f', 11g, 1
1g'...Injection hole, 12, 12'...Needle valve, 15
...Fuel supply path, 17, 17'...oil path.
Claims (1)
の圧力によりリフトされる針弁と、該針弁のリフ
トにより燃料供給路に連通される第１の噴射孔と
を備えてなる燃料噴射ノズルにおいて、前記針弁
内に、該針弁のリフト量が所定値に達したとき、
前記燃料供給路に連通する第２の燃料供給路を形
成し、前記第１の噴射孔よりノズル先端側に穿設
され、前記第２の燃料供給路を介して前記燃料供
給路に連通する第２の噴射孔を設けたことを特徴
とする燃料噴射ノズル。 (2) 前記第１の噴射孔は、前記針弁のリフト量
が前記所定量に達したとき、当該針弁により閉塞
されることを特徴とする請求項第１項記載の燃料
噴射ノズル。[Claims for Utility Model Registration] (1) A needle valve that is housed in a nozzle body and is lifted by the pressure of injected fuel, and a first injection hole that is communicated with a fuel supply path by the lift of the needle valve. In the fuel injection nozzle, when the lift amount of the needle valve reaches a predetermined value,
A second fuel supply passage is formed that communicates with the fuel supply passage, and is bored closer to the nozzle tip side than the first injection hole, and communicates with the fuel supply passage via the second fuel supply passage. A fuel injection nozzle characterized in that two injection holes are provided. (2) The fuel injection nozzle according to claim 1, wherein the first injection hole is closed by the needle valve when the lift amount of the needle valve reaches the predetermined amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7830689U JPH0317274U (en) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7830689U JPH0317274U (en) | 1989-07-04 | 1989-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317274U true JPH0317274U (en) | 1991-02-20 |
Family
ID=31621462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7830689U Pending JPH0317274U (en) | 1989-07-04 | 1989-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317274U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220460A (en) * | 1999-01-28 | 2000-08-08 | Hitachi Ltd | Cylinder injection type internal combustion engine |
| JP2010512484A (en) * | 2006-12-15 | 2010-04-22 | マーン・ディーゼール・フィリアル・アーエフ・マーン・ディーゼール・エスエー・ティスクランド | Fuel injector for internal combustion engines |
| CN102734026A (en) * | 2012-07-11 | 2012-10-17 | 哈尔滨工程大学 | Double-seat multiple-atomizing nozzle |
| CN102966476A (en) * | 2012-12-04 | 2013-03-13 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Pressure-free chamber oil nozzle needle valve couple |
| JP2013113096A (en) * | 2011-11-24 | 2013-06-10 | Mitsubishi Heavy Ind Ltd | Fuel injection device |
| KR101400572B1 (en) * | 2008-12-04 | 2014-05-28 | 현대자동차주식회사 | Injector Control method for a Liquefied Petroleum Injection of a vehicle |
| JP2015034486A (en) * | 2013-08-08 | 2015-02-19 | 株式会社日本自動車部品総合研究所 | Fuel injection nozzle |
-
1989
- 1989-07-04 JP JP7830689U patent/JPH0317274U/ja active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220460A (en) * | 1999-01-28 | 2000-08-08 | Hitachi Ltd | Cylinder injection type internal combustion engine |
| JP2010512484A (en) * | 2006-12-15 | 2010-04-22 | マーン・ディーゼール・フィリアル・アーエフ・マーン・ディーゼール・エスエー・ティスクランド | Fuel injector for internal combustion engines |
| KR101400572B1 (en) * | 2008-12-04 | 2014-05-28 | 현대자동차주식회사 | Injector Control method for a Liquefied Petroleum Injection of a vehicle |
| JP2013113096A (en) * | 2011-11-24 | 2013-06-10 | Mitsubishi Heavy Ind Ltd | Fuel injection device |
| CN102734026A (en) * | 2012-07-11 | 2012-10-17 | 哈尔滨工程大学 | Double-seat multiple-atomizing nozzle |
| CN102966476A (en) * | 2012-12-04 | 2013-03-13 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Pressure-free chamber oil nozzle needle valve couple |
| JP2015034486A (en) * | 2013-08-08 | 2015-02-19 | 株式会社日本自動車部品総合研究所 | Fuel injection nozzle |