JPS63119862U - - Google Patents
Info
- Publication number
- JPS63119862U JPS63119862U JP1162987U JP1162987U JPS63119862U JP S63119862 U JPS63119862 U JP S63119862U JP 1162987 U JP1162987 U JP 1162987U JP 1162987 U JP1162987 U JP 1162987U JP S63119862 U JPS63119862 U JP S63119862U
- Authority
- JP
- Japan
- Prior art keywords
- gate valve
- shutter plate
- valve body
- tapered portion
- internal combustion
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案の実施例に係る内燃機関のＥＧ
Ｒ用ゲートバルブの断面図、第２図は同内燃機関
のＥＧＲ用ゲートバルブの取付位置を示す説明図
、第３図は本考案の他の実施例に係るＥＧＲ用ゲ
ートバルブの要部断面図、第４図は本考案のさら
に他の実施例におけるＥＧＲ用ゲートバルブの要
部断面図、第５図は従来における内燃機関のＥＧ
Ｒ用ゲートバルブの断面図、第６図は同正面断面
図、第７図は同ＥＧＲ用ゲートバルブの作動状態
説明図、第８図は排気圧力及び吸気圧力の変化の
状態を示す説明図である。
１……還流通路、５……ＥＧＲ用ゲートバルブ
、６……ゲートバルブ本体、６Ａ……内壁面、７
……シヤツター板、９……シヤツター受け部、１
０……テーパ部、１１……段付部。
Figure 1 shows the EG of an internal combustion engine according to an embodiment of the present invention.
2 is an explanatory diagram showing the mounting position of the EGR gate valve of the same internal combustion engine; FIG. 3 is a sectional view of the main part of the EGR gate valve according to another embodiment of the present invention. , FIG. 4 is a sectional view of essential parts of an EGR gate valve in still another embodiment of the present invention, and FIG. 5 is a sectional view of an EGR gate valve in a conventional internal combustion engine.
FIG. 6 is a sectional view of the R gate valve, FIG. 6 is a front sectional view thereof, FIG. 7 is an explanatory diagram of the operating state of the EGR gate valve, and FIG. 8 is an explanatory diagram showing the state of change in exhaust pressure and intake pressure. be. 1... Reflux passage, 5... EGR gate valve, 6... Gate valve body, 6A... Inner wall surface, 7
... Shutter plate, 9 ... Shutter receiver, 1
0...Tapered part, 11...Stepped part.
Claims (1)
ルブ本体と、ゲートバルブ本体の内壁面を移動す
るシヤツター板とから構成され、シヤツター板の
移動により還流通路を開閉する内燃機関のＥＧＲ
用ゲートバルブにおいて、シヤツター板を受け入
れるゲートバルブ本体のシヤツター受け部の排気
ガス流入側にテーパ部を設け、テーパ部と係合す
るシヤツター板の係合面にテーパ部と接触する段
付部を形成したことを特徴とする内燃機関のＥＧ
Ｒ用ゲートバルブ。 EGR for internal combustion engines consists of a hollow gate valve body installed in an exhaust gas recirculation passage and a shutter plate that moves on the inner wall surface of the gate valve body, and opens and closes the recirculation passage by moving the shutter plate.
In a gate valve for use with shutters, a tapered portion is provided on the exhaust gas inflow side of the shutter receiving portion of the gate valve body that receives the shutter plate, and a stepped portion that contacts the tapered portion is formed on the engagement surface of the shutter plate that engages with the tapered portion. EG of an internal combustion engine characterized by
Gate valve for R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162987U JPS63119862U (en) | 1987-01-29 | 1987-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162987U JPS63119862U (en) | 1987-01-29 | 1987-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63119862U true JPS63119862U (en) | 1988-08-03 |
Family
ID=30799019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1162987U Pending JPS63119862U (en) | 1987-01-29 | 1987-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63119862U (en) |
-
1987
- 1987-01-29 JP JP1162987U patent/JPS63119862U/ja active Pending