JPS63110671U - - Google Patents
Info
- Publication number
- JPS63110671U JPS63110671U JP102687U JP102687U JPS63110671U JP S63110671 U JPS63110671 U JP S63110671U JP 102687 U JP102687 U JP 102687U JP 102687 U JP102687 U JP 102687U JP S63110671 U JPS63110671 U JP S63110671U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- hollow needle
- tip
- seat
- 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
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第1図は本考案による燃料噴射弁を示す断面図
、第2図は第1図の燃料噴射弁の先端部分を示す
作動説明図、第3図はさらに他の例を示す図であ
る。
12…噴射弁本体、14,22…燃料通路、2
0…シート、22…中空ニードル弁、24…シー
ト部、26…中心ニードル弁、46…ピエゾアク
チユエータ。
FIG. 1 is a sectional view showing a fuel injection valve according to the present invention, FIG. 2 is an operation explanatory view showing the tip portion of the fuel injection valve shown in FIG. 1, and FIG. 3 is a view showing still another example. 12... Injection valve body, 14, 22... Fuel passage, 2
0...Seat, 22...Hollow needle valve, 24...Seat portion, 26...Center needle valve, 46...Piezo actuator.
Claims (1)
該噴射弁本体内に挿入された中空ニードル弁と、
該中空ニードル弁内に挿入された中心ニードル弁
とからなり、前記中空ニードル弁の先端部に前記
噴射弁本体のシートと係合可能なシート部が形成
されるとともに、前記中空ニードル弁の側面から
その先端に通じる燃料通路が形成され、前記中心
ニードル弁の先端が該燃料通路を開閉可能に形成
され、中心ニードル弁が中空ニードル弁に対して
リフトされたときに小さい噴霧角で燃料噴射が行
われ、中空ニードル弁が噴射弁本体に対してリフ
トされたときに大きい噴霧角で燃料噴射が行われ
るようにしたことを特徴とする燃料噴射弁。 an injection valve body having a seat on the outer surface of the tip;
a hollow needle valve inserted into the injection valve body;
a central needle valve inserted into the hollow needle valve, and a seat part that can engage with the seat of the injection valve body is formed at the tip of the hollow needle valve, and a seat part that can engage with the seat of the injection valve main body, and A fuel passage leading to the tip thereof is formed, and the tip of the center needle valve is formed to be able to open and close the fuel passage, and when the center needle valve is lifted relative to the hollow needle valve, fuel injection is performed at a small spray angle. A fuel injection valve characterized in that fuel injection is performed at a large spray angle when the hollow needle valve is lifted relative to the injection valve body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP102687U JPS63110671U (en) | 1987-01-09 | 1987-01-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP102687U JPS63110671U (en) | 1987-01-09 | 1987-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63110671U true JPS63110671U (en) | 1988-07-15 |
Family
ID=30778548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP102687U Pending JPS63110671U (en) | 1987-01-09 | 1987-01-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63110671U (en) |
-
1987
- 1987-01-09 JP JP102687U patent/JPS63110671U/ja active Pending