JPS6151469U - - Google Patents
Info
- Publication number
- JPS6151469U JPS6151469U JP13614584U JP13614584U JPS6151469U JP S6151469 U JPS6151469 U JP S6151469U JP 13614584 U JP13614584 U JP 13614584U JP 13614584 U JP13614584 U JP 13614584U JP S6151469 U JPS6151469 U JP S6151469U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- valve
- passage
- valve seat
- 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 14
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例を示す要部の概略断
面図、第２図はフロート弁の斜視図、第３図は第
１図の−断面図、第４図は第１図の−断
面図、第５図は本考案を適用する従来の内燃機関
の燃料供給圧力制御装置の概略図、第６図は同じ
くプレツシヤレギユレータの断面図である。
３…吸気絞弁、４…吸気通路、５…燃料噴射弁
、６…プレツシヤレギユレータ、８…ダイアフラ
ム、９…エアチヤンバ、１０…フユーエルチヤン
バ、１１…エア通路、１４…リターン通路、１５
…弁座、１８…弁体、１７…トラツプ、１８…フ
ロート弁、１９…弁座。
Fig. 1 is a schematic sectional view of essential parts showing an embodiment of the present invention, Fig. 2 is a perspective view of a float valve, Fig. 3 is a cross-sectional view of Fig. 1, and Fig. 4 is a - sectional view of Fig. 1. 5 is a schematic view of a conventional fuel supply pressure control device for an internal combustion engine to which the present invention is applied, and FIG. 6 is a sectional view of a pressure regulator. 3... Intake throttle valve, 4... Intake passage, 5... Fuel injection valve, 6... Pressure regulator, 8... Diaphragm, 9... Air chamber, 10... Fuel chamber, 11... Air passage, 14... Return passage , 15
... Valve seat, 18... Valve body, 17... Trap, 18... Float valve, 19... Valve seat.
Claims (1)
て接続されたエアチヤンバと燃料ポンプから燃料
噴射弁に至る燃料通路の一部を構成するフユーエ
ルチヤンバとをダイアフラムを介して隔成し、前
記フユーエルチヤンバに開口させた燃料リターン
通路の開口端に設けた弁座に対向する弁体を前記
ダイアフラムに装着することにより、エアチヤン
バの圧力に応じて前記弁体を前記弁座に接離させ
て燃料リターン通路の開度を変化させ、もつて、
燃料噴射弁に供給される燃料の圧力を所定値に制
御するよに構成した内燃機関において、前記エア
通路に介装したトラツプの内部に燃料より比重の
小さいフロート弁を昇降自在に収容すると共に、
該フロート弁に対向する弁座を前記トラツプ内部
の上端部に設けたことを特徴とする内燃機関の燃
料供給圧力制御装置。 An air chamber connected to an intake passage downstream of the intake throttle valve via an air passage and a fuel chamber constituting a part of the fuel passage from the fuel pump to the fuel injection valve are separated via a diaphragm, and A valve element is attached to the diaphragm, which faces a valve seat provided at an open end of a fuel return passage opened in a fuel chamber, so that the valve element is moved toward and away from the valve seat depending on the pressure of the air chamber. By changing the opening degree of the fuel return passage,
In an internal combustion engine configured to control the pressure of fuel supplied to a fuel injection valve to a predetermined value, a float valve having a specific gravity smaller than that of the fuel is housed inside a trap interposed in the air passage and can be raised and lowered,
A fuel supply pressure control device for an internal combustion engine, characterized in that a valve seat facing the float valve is provided at an upper end inside the trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614584U JPS6151469U (en) | 1984-09-10 | 1984-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614584U JPS6151469U (en) | 1984-09-10 | 1984-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6151469U true JPS6151469U (en) | 1986-04-07 |
Family
ID=30694615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13614584U Pending JPS6151469U (en) | 1984-09-10 | 1984-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6151469U (en) |
-
1984
- 1984-09-10 JP JP13614584U patent/JPS6151469U/ja active Pending