JPH0363767U - - Google Patents
Info
- Publication number
- JPH0363767U JPH0363767U JP12368389U JP12368389U JPH0363767U JP H0363767 U JPH0363767 U JP H0363767U JP 12368389 U JP12368389 U JP 12368389U JP 12368389 U JP12368389 U JP 12368389U JP H0363767 U JPH0363767 U JP H0363767U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- diaphragm
- chamber
- back pressure
- pressure chamber
- 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 20
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Safety Valves (AREA)
Description
第１図は本考案の燃料圧力レギユレート装置の
一実施例を示す図、第２図は従来公知の燃料噴射
式内燃機関の燃料供給系統を示す図、第３図は従
来公知の燃料圧力レギユレータを示す図である。
５……燃料供給管、８……リターン燃料通路、
１０……燃料圧力レギユレート装置、Ａ……燃料
圧力レギユレータ、Ｂ……ソレノイド弁、１３…
…第１ダイアフラム、１４……第２ダイアフラム
、１５……燃料室、１６……第１背圧室、１７…
…第２背圧室、１８……弁体、２１……第１の圧
縮ばね、２３……第２の圧縮ばね。
Fig. 1 is a diagram showing an embodiment of the fuel pressure regulating device of the present invention, Fig. 2 is a diagram showing a fuel supply system of a conventionally known fuel injection internal combustion engine, and Fig. 3 is a diagram showing a conventionally known fuel pressure regulator. FIG. 5...Fuel supply pipe, 8...Return fuel passage,
10... Fuel pressure regulating device, A... Fuel pressure regulator, B... Solenoid valve, 13...
...First diaphragm, 14... Second diaphragm, 15... Fuel chamber, 16... First back pressure chamber, 17...
...Second back pressure chamber, 18...Valve body, 21...First compression spring, 23...Second compression spring.
Claims (1)
、レギユレータ本体と該レギユレータ本体に連動
するソレノイド弁からなる燃料圧力レギユレート
装置であつて、 前記燃料圧力レギユレータ本体は小面積の第１
ダイアフラムと大面積の第２ダイアフラムとによ
り、燃料室と第１背圧室と第２背圧室との３室に
区分され、 前記第１ダイアフラムには、開弁時に燃料供給
管に接続されている前記燃料室の余分な燃料をリ
ターン燃料通路に吐出す弁体が取り付けられてお
り、 前記第１背圧室には前記第１ダイアフラムと前
記第２ダイアフラムとに介装される第１の圧縮ば
ねが設けられるとともに、前記第２背圧室には前
記第２ダイアフラムを押圧する第２の圧縮ばねが
設けられ、 かつ、前記第１背圧室は大気圧に接続され、ま
た、前記第２背圧室は制御装置により制御される
ソレノイド弁を介して吸気マニホルド負圧及び大
気圧に接続されてなる、 ことを特徴とする燃料圧力レギユレート装置。[Scope of Claim for Utility Model Registration] A fuel pressure regulating device installed in a fuel supply system of a fuel injection internal combustion engine and comprising a regulator body and a solenoid valve interlocked with the regulator body, wherein the fuel pressure regulator body has a small area. 1st of
The diaphragm and the large-area second diaphragm divide the fuel chamber into three chambers: a fuel chamber, a first back pressure chamber, and a second back pressure chamber, and the first diaphragm is connected to a fuel supply pipe when the valve is opened. A valve body is attached to discharge excess fuel in the fuel chamber into a return fuel passage, and the first back pressure chamber is provided with a first compression valve disposed between the first diaphragm and the second diaphragm. A spring is provided, and the second back pressure chamber is provided with a second compression spring that presses the second diaphragm, and the first back pressure chamber is connected to atmospheric pressure, and the second back pressure chamber is connected to atmospheric pressure. A fuel pressure regulating device characterized in that the back pressure chamber is connected to an intake manifold negative pressure and atmospheric pressure via a solenoid valve controlled by a control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12368389U JPH0363767U (en) | 1989-10-23 | 1989-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12368389U JPH0363767U (en) | 1989-10-23 | 1989-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0363767U true JPH0363767U (en) | 1991-06-21 |
Family
ID=31671649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12368389U Pending JPH0363767U (en) | 1989-10-23 | 1989-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0363767U (en) |
-
1989
- 1989-10-23 JP JP12368389U patent/JPH0363767U/ja active Pending
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