JPS62173544U - - Google Patents
Info
- Publication number
- JPS62173544U JPS62173544U JP6030086U JP6030086U JPS62173544U JP S62173544 U JPS62173544 U JP S62173544U JP 6030086 U JP6030086 U JP 6030086U JP 6030086 U JP6030086 U JP 6030086U JP S62173544 U JPS62173544 U JP S62173544U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- gas
- valve
- gas injection
- injection valve
- 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
- 239000003921 oil Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims 2
- 239000000446 fuel Substances 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１〜６図は本考案に係るもので第１図は実施
例の縦断面図、第２図は針弁の拡大図、第３図は
ガス遮断弁の詳細図、第４図は針弁に設けた切欠
部の開口面積の説明図、第５図はシール油圧が伝
播する経路における各部断面積とシール油圧損失
の状況図、第６図は時間的経過に対する針弁リフ
トと切欠部開口面積とガス遮断弁コントロール油
圧の変化状況図、第７〜８図はガス噴射弁の従来
例で、第７図はシール油路を含む面による縦断面
図、第８図はガス供給管路と作動油路を含む面に
よる縦断面図である。
４……針弁、６……ばね、２１……針弁ガス溜
り、２２……作動油溜り、２３……シール油溜り
、２５……溝、４４，６４……コントロール油路
、８０……ガス遮断弁。
Figures 1 to 6 are related to the present invention; Figure 1 is a longitudinal sectional view of the embodiment, Figure 2 is an enlarged view of the needle valve, Figure 3 is a detailed view of the gas cutoff valve, and Figure 4 is the needle valve. Fig. 5 is an illustration of the cross-sectional area of each part in the path through which seal oil pressure propagates and the situation of seal oil pressure loss, and Fig. 6 is an illustration of the needle valve lift and the opening area of the notch over time. Figures 7 and 8 show a conventional example of a gas injection valve, Figure 7 is a longitudinal cross-sectional view of the plane including the seal oil passage, and Figure 8 shows the gas supply pipe and its operation. FIG. 3 is a longitudinal sectional view taken along a plane including an oil passage. 4... Needle valve, 6... Spring, 21... Needle valve gas reservoir, 22... Hydraulic oil reservoir, 23... Seal oil reservoir, 25... Groove, 44, 64... Control oil path, 80... Gas shutoff valve.
Claims (1)
との差圧により開閉してガス燃料を噴射せしめる
針弁と、前記作動油溜りと針弁のガス溜りとの中
間部に設けられたシール油溜りとを備えたガス噴
射弁において、前記針弁の外周部に該針弁がリフ
トするに従い面積が縮小する溝を設けるとともに
該溝に連通されるコントロール油路を設け、該コ
ントロール油路に接続されコントロール油圧の変
化により前記ガス噴射弁へのガス供給通路を開閉
するガス遮断弁を備えたガス噴射弁装置。 A needle valve that opens and closes depending on the pressure difference between the pressure of the hydraulic oil supplied to the hydraulic oil reservoir and the spring force to inject gaseous fuel, and a needle valve provided at an intermediate portion between the hydraulic oil reservoir and the gas reservoir of the needle valve. In a gas injection valve equipped with a seal oil reservoir, a groove whose area decreases as the needle valve lifts is provided on the outer periphery of the needle valve, and a control oil passage communicating with the groove is provided, and the control oil passage is provided with a groove whose area decreases as the needle valve lifts. A gas injection valve device comprising a gas cutoff valve connected to the gas injection valve for opening and closing a gas supply passage to the gas injection valve according to a change in control oil pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6030086U JPH0420998Y2 (en) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6030086U JPH0420998Y2 (en) | 1986-04-23 | 1986-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62173544U true JPS62173544U (en) | 1987-11-04 |
| JPH0420998Y2 JPH0420998Y2 (en) | 1992-05-13 |
Family
ID=30892593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6030086U Expired JPH0420998Y2 (en) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420998Y2 (en) |
-
1986
- 1986-04-23 JP JP6030086U patent/JPH0420998Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0420998Y2 (en) | 1992-05-13 |