JPH01149558U - - Google Patents
Info
- Publication number
- JPH01149558U JPH01149558U JP4641688U JP4641688U JPH01149558U JP H01149558 U JPH01149558 U JP H01149558U JP 4641688 U JP4641688 U JP 4641688U JP 4641688 U JP4641688 U JP 4641688U JP H01149558 U JPH01149558 U JP H01149558U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- passage
- controls
- control
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案に係る排気還流制御装置の一実
施例を示す全体構成図、第２図は本実施例に供さ
れる負圧制御弁を示す断面図、第３図は本実施例
の負圧制御弁におけるスプリングリテーナを上下
に移動させる作用説明図、第４図は従来の排気還
流制御装置を示す全体概略図である。
１１……ＥＧＲ通路、１２……内燃機関、１３
……ＥＧＲ弁、２０……負圧通路、２１……負圧
制御弁、２４……アクチユエータ、２５……ダイ
ヤフラム、２８……大気開放ポート、３０……弁
体、３４……リータンスプリング、４４……コン
ピユータユニツト（制御回路）。
Fig. 1 is an overall configuration diagram showing one embodiment of an exhaust gas recirculation control device according to the present invention, Fig. 2 is a sectional view showing a negative pressure control valve used in this embodiment, and Fig. 3 is a diagram showing an embodiment of the exhaust recirculation control device according to the present invention. FIG. 4 is an explanatory diagram of the action of moving the spring retainer up and down in the negative pressure control valve, and is an overall schematic diagram showing a conventional exhaust gas recirculation control device. 11...EGR passage, 12...Internal combustion engine, 13
... EGR valve, 20 ... Negative pressure passage, 21 ... Negative pressure control valve, 24 ... Actuator, 25 ... Diaphragm, 28 ... Atmospheric release port, 30 ... Valve body, 34 ... Retan spring, 44 ...Computer unit (control circuit).
Claims (1)
て供給される信号負圧によつて制御するＥＧＲ弁
と、上記ＥＧＲ弁の信号負圧を、ダイヤフラムに
有する弁体が上記負圧通路を開閉して制御する負
圧制御弁と、上記ダイヤフラムの変形量を上記Ｅ
ＧＲ通路の排気圧力との相対圧で決定するリター
ンスプリングのばね力を可変制御するアクチユエ
ータと、該アクチユエータを機関運転状態に応じ
て駆動制御する制御回路とを備えたことを特徴と
する排気還流制御装置。 An EGR valve that controls the exhaust gas recirculation amount in the EGR passage by a signal negative pressure supplied via the negative pressure passage, and a valve body having a diaphragm that carries the signal negative pressure of the EGR valve control the negative pressure passage. The negative pressure control valve, which is controlled by opening and closing, and the amount of deformation of the diaphragm described above are
Exhaust recirculation control characterized by comprising an actuator that variably controls the spring force of a return spring determined by the relative pressure with the exhaust pressure of the GR passage, and a control circuit that drives and controls the actuator according to the engine operating state. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4641688U JPH01149558U (en) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4641688U JPH01149558U (en) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149558U true JPH01149558U (en) | 1989-10-17 |
Family
ID=31272685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4641688U Pending JPH01149558U (en) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149558U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755901A (en) * | 1980-09-19 | 1982-04-03 | Denki Kagaku Kogyo Kk | Production of thermoplastic resin |
| JPS61140684A (en) * | 1984-12-07 | 1986-06-27 | カナデイアン・フレイム・リミテツド | Variable flow valve and usage thereof |
| JPS6214709A (en) * | 1985-07-09 | 1987-01-23 | 皆川 功 | Fertilizer scattering apparatus |
-
1988
- 1988-04-06 JP JP4641688U patent/JPH01149558U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755901A (en) * | 1980-09-19 | 1982-04-03 | Denki Kagaku Kogyo Kk | Production of thermoplastic resin |
| JPS61140684A (en) * | 1984-12-07 | 1986-06-27 | カナデイアン・フレイム・リミテツド | Variable flow valve and usage thereof |
| JPS6214709A (en) * | 1985-07-09 | 1987-01-23 | 皆川 功 | Fertilizer scattering apparatus |
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