JPS6262074U - - Google Patents
Info
- Publication number
- JPS6262074U JPS6262074U JP15481985U JP15481985U JPS6262074U JP S6262074 U JPS6262074 U JP S6262074U JP 15481985 U JP15481985 U JP 15481985U JP 15481985 U JP15481985 U JP 15481985U JP S6262074 U JPS6262074 U JP S6262074U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- check valve
- diaphragm
- umbrella
- negative
- 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
- 239000000446 fuel Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Description
第１図は本考案の負圧コツクのチエツクバルブ
装置を示す縦断面図、第２図は第１図におけるＡ
―Ａ線断面図、第３図は従来の負圧コツクを示す
縦断面図、第４図は本考案の負圧コツクと従来の
負圧コツクの負圧室の負圧保持特性を比較して示
す特性図、第５図はエンジン運転中における負圧
室内の負圧特性を本考案の負圧コツクと従来の負
圧コツクとで比較して示す特性図である。
２……ダイヤフラム、５……燃料弁、６……負
圧室、９……チエツクバルブ、２０……弁座、２
５……リーク溝。
Fig. 1 is a vertical sectional view showing the check valve device for a negative pressure cooker of the present invention, and Fig. 2 is an A in Fig. 1.
-A-line sectional view, Figure 3 is a vertical cross-sectional view showing a conventional negative pressure chamber, and Figure 4 is a comparison of the negative pressure holding characteristics of the negative pressure chamber of the negative pressure chamber of the present invention and a conventional negative pressure chamber. FIG. 5 is a characteristic diagram showing a comparison of the negative pressure characteristics in the negative pressure chamber during engine operation between the negative pressure chamber of the present invention and the conventional negative pressure chamber. 2...Diaphragm, 5...Fuel valve, 6...Negative pressure chamber, 9...Check valve, 20...Valve seat, 2
5...Leak groove.
Claims (1)
、該ダイヤフラムに取り付けた燃料弁を開くよう
にした負圧コツクにおいて、ダイヤフラム背部の
負圧室に負圧を導く負圧通路上に弾性体の傘型チ
エツクバルブを備え、該チエツクバルブの弁座に
、前記チエツクバルブの傘状部外周縁の外側から
内側へ至り、かつ断面が円弧状のリーク溝を設け
ることを特徴とする負圧コツクのチエツクバルブ
装置。 In a negative pressure tank in which a diaphragm is pulled by the negative intake pressure of the engine to open the fuel valve attached to the diaphragm, an elastic umbrella-shaped check valve is installed on the negative pressure passage that leads negative pressure to the negative pressure chamber at the back of the diaphragm. A check valve device for a negative pressure cock, characterized in that the valve seat of the check valve is provided with a leak groove extending from the outside to the inside of the outer periphery of the umbrella-shaped portion of the check valve and having an arcuate cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985154819U JPH0314609Y2 (en) | 1985-10-08 | 1985-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985154819U JPH0314609Y2 (en) | 1985-10-08 | 1985-10-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6262074U true JPS6262074U (en) | 1987-04-17 |
| JPH0314609Y2 JPH0314609Y2 (en) | 1991-04-02 |
Family
ID=31074963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985154819U Expired JPH0314609Y2 (en) | 1985-10-08 | 1985-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314609Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032066A (en) * | 1983-08-02 | 1985-02-19 | Canon Inc | Electrophotographic device |
-
1985
- 1985-10-08 JP JP1985154819U patent/JPH0314609Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032066A (en) * | 1983-08-02 | 1985-02-19 | Canon Inc | Electrophotographic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0314609Y2 (en) | 1991-04-02 |