JPH0417168U - - Google Patents
Info
- Publication number
- JPH0417168U JPH0417168U JP5814490U JP5814490U JPH0417168U JP H0417168 U JPH0417168 U JP H0417168U JP 5814490 U JP5814490 U JP 5814490U JP 5814490 U JP5814490 U JP 5814490U JP H0417168 U JPH0417168 U JP H0417168U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- hole
- fuel
- main body
- 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 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は、本考案の実施例に係る直噴型エンジ
ンの燃料噴射ノズルのノズルアツセンブリの構造
を示す縦断面図、第２図は、同燃料噴射ノズル本
体部の構造を示す縦断面図、第３図は、同ノズル
本体部の噴孔構造を示す拡大断面図、第４図は、
上記燃料噴射ノズルのデイスタンスピースの正面
図、第５図は、同デイスタンスピースの側面図で
ある。
１……ノズルホルダー、２……ノズル本体、３
……サツクホール、４ａ，４ｂ……噴孔、５……
弁座部、７……ニードルバルブ、８……第１の燃
料供給穴、１２……ノズルスプリング、２０……
デイスタンスピース、２１……絞り穴、２２……
第２の燃料供給穴、２３……油留り。
FIG. 1 is a longitudinal sectional view showing the structure of a nozzle assembly of a fuel injection nozzle for a direct injection engine according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing the structure of the fuel injection nozzle main body. , FIG. 3 is an enlarged sectional view showing the nozzle hole structure of the nozzle body, and FIG.
FIG. 5 is a front view of the distance piece of the fuel injection nozzle, and FIG. 5 is a side view of the distance piece. 1... Nozzle holder, 2... Nozzle body, 3
... Suck hole, 4a, 4b ... Nozzle hole, 5 ...
Valve seat portion, 7... Needle valve, 8... First fuel supply hole, 12... Nozzle spring, 20...
Distance piece, 21...Aperture hole, 22...
Second fuel supply hole, 23... oil sump.
Claims (1)
の供給量を調整するニードルバルブを備えてなる
ノズル本体部と、上記噴孔部への燃料供給通路お
よび上記ニードルバルブの閉弁圧を付与するノズ
ルバネを備え上記ノズル本体部を一体的に連結す
ることにより保持してなるノズルホルダー部と、
該ノズルホルダーと上記ノズル本体部との間に介
設され上記ノズル本体部側噴孔部へのノズルホル
ダー側燃料供給通路との連通孔を除いてシール面
に形成された介設部材とよりなる直噴型エンジン
の燃料噴射ノズルにおいて、上記介設部材の上記
連通孔を、燃料噴射流量規定用の絞り穴に設定す
るとともに上記ノズル本体部側噴孔の孔径よりも
小さくしたことを特徴とする直噴型エンジンの燃
料噴射ノズル。 A nozzle body comprising a nozzle hole for injecting fuel and a needle valve for adjusting the amount of fuel supplied to the nozzle hole, a fuel supply passage to the nozzle hole, and a valve closing pressure of the needle valve. a nozzle holder portion that is provided with a nozzle spring and held by integrally connecting the nozzle body portion;
an intervening member interposed between the nozzle holder and the nozzle main body and formed on the sealing surface except for a communication hole between the nozzle main body side nozzle hole and the nozzle holder side fuel supply passage; The fuel injection nozzle for a direct injection engine is characterized in that the communication hole of the intervening member is set as a throttle hole for regulating the fuel injection flow rate and is smaller than the hole diameter of the injection hole on the side of the nozzle main body. Fuel injection nozzle for direct injection engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5814490U JPH0417168U (en) | 1990-05-31 | 1990-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5814490U JPH0417168U (en) | 1990-05-31 | 1990-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417168U true JPH0417168U (en) | 1992-02-13 |
Family
ID=31583488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5814490U Pending JPH0417168U (en) | 1990-05-31 | 1990-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417168U (en) |
-
1990
- 1990-05-31 JP JP5814490U patent/JPH0417168U/ja active Pending