JPH0261182U - - Google Patents
Info
- Publication number
- JPH0261182U JPH0261182U JP14005188U JP14005188U JPH0261182U JP H0261182 U JPH0261182 U JP H0261182U JP 14005188 U JP14005188 U JP 14005188U JP 14005188 U JP14005188 U JP 14005188U JP H0261182 U JPH0261182 U JP H0261182U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- chamber
- injection valve
- fuel 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
- 239000000446 fuel Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第1図は本考案の一実施例を示す可変プレツシ
ヤレギユレータの断面図、第2図は検査装置全体
のシステム図、第3図は従来例を示すシステム図
である。
1……燃料噴射弁、2……負圧室、3……燃料
タンク、4……燃料ポンプ、5……燃料圧送通路
、8……流量計、9,10……圧力計、20……
可変プレツシヤレギユレータ、21……ケーシン
グ、22……ダイアフラム、23……燃料圧力室
、24……基準圧力室、26……弁体、27……
燃料戻し口、29……リテーナ、30……スプリ
ング、31……ねじ、32……アウターケース、
36……ハンドル。
FIG. 1 is a sectional view of a variable pressure regulator showing an embodiment of the present invention, FIG. 2 is a system diagram of the entire inspection apparatus, and FIG. 3 is a system diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Fuel injection valve, 2... Negative pressure chamber, 3... Fuel tank, 4... Fuel pump, 5... Fuel pressure feeding passage, 8... Flow meter, 9, 10... Pressure gauge, 20...
Variable pressure regulator, 21...Casing, 22...Diaphragm, 23...Fuel pressure chamber, 24...Reference pressure chamber, 26...Valve body, 27...
Fuel return port, 29...retainer, 30...spring, 31...screw, 32...outer case,
36...handle.
Claims (1)
給する燃料の圧力とこの燃料噴射弁が臨む負圧室
内の圧力との差圧を所定値に調整すべく、燃料噴
射弁上流から余剰燃料を戻して燃料の圧力を制御
するプレツシヤレギユレータであつて、ケーシン
グ内をダイアフラムで2室に仕切り、一方の室を
燃料噴射弁上流と連通させると共に、該一方の室
にダイアフラムに取付けた弁体に対向させて燃料
戻し口を開口させ、他方の室を負圧室と連通させ
ると共に、該他方の室にリテーナに一端を支持さ
れたスプリングを収納し、その他端をダイアフラ
ムに作用させて弁体を燃料戻し口閉止方向に付勢
し、前記リテーナをケーシングに進退可能に螺合
したねじの一端に保持し、その他端にハンドルを
設けたことを特徴とする燃料噴射弁特性検査用の
可変プレツシヤレギユレータ。 In order to adjust the pressure difference between the pressure of the fuel supplied to the fuel injection valve for inspection via the fuel pressure passage and the pressure in the negative pressure chamber facing this fuel injection valve to a predetermined value, excess fuel is removed from upstream of the fuel injection valve. This is a pressure regulator that controls the pressure of the fuel by returning the pressure, and the inside of the casing is divided into two chambers by a diaphragm, one chamber is communicated with the upstream side of the fuel injection valve, and the pressure regulator is attached to the diaphragm in the one chamber. A fuel return port is opened facing the valve body, and the other chamber is communicated with a negative pressure chamber, and a spring whose one end is supported by a retainer is housed in the other chamber, and the other end acts on the diaphragm. The valve body is biased in the fuel return port closing direction, the retainer is held at one end of a screw screwed into the casing so that it can move forward and backward, and a handle is provided at the other end. Variable pressure regulator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14005188U JPH0261182U (en) | 1988-10-28 | 1988-10-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14005188U JPH0261182U (en) | 1988-10-28 | 1988-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0261182U true JPH0261182U (en) | 1990-05-07 |
Family
ID=31403871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14005188U Pending JPH0261182U (en) | 1988-10-28 | 1988-10-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0261182U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844629A (en) * | 1971-10-08 | 1973-06-27 | ||
JPS5715169A (en) * | 1980-06-13 | 1982-01-26 | Ueebaa Spa | Pressure regulator for fuel injection device of ignition control type internal combustion engine |
-
1988
- 1988-10-28 JP JP14005188U patent/JPH0261182U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844629A (en) * | 1971-10-08 | 1973-06-27 | ||
JPS5715169A (en) * | 1980-06-13 | 1982-01-26 | Ueebaa Spa | Pressure regulator for fuel injection device of ignition control type internal combustion engine |
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