JPS61130752U - - Google Patents
Info
- Publication number
- JPS61130752U JPS61130752U JP1307985U JP1307985U JPS61130752U JP S61130752 U JPS61130752 U JP S61130752U JP 1307985 U JP1307985 U JP 1307985U JP 1307985 U JP1307985 U JP 1307985U JP S61130752 U JPS61130752 U JP S61130752U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- closing
- intake
- force
- negative pressure
- 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 2
- 239000000203 mixture Substances 0.000 claims 2
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
図面は本考案の実施例を示し、第１図は気化器
に付設した補助連通部分の横断平面図、第２図は
縦形強制空冷頭上弁式エンジンの一部縦断正面図
、第３図はスロツトル開度に対する吸気管内負圧
を示すグラフである。
１……エンジン、１２……吸気系統、１６ａ…
…吸気側部分、１６ｂ……給気側部分、１９……
スロツトル弁、２３……補助連通路、２５……負
圧弁、２６……弁体、２７……閉弁付勢手段。
The drawings show an embodiment of the present invention; Fig. 1 is a cross-sectional plan view of an auxiliary communication section attached to a carburetor, Fig. 2 is a partial longitudinal sectional front view of a vertical forced air-cooled overhead valve engine, and Fig. 3 is a view of the throttle. It is a graph which shows the negative pressure in an intake pipe with respect to an opening degree. 1...Engine, 12...Intake system, 16a...
...Intake side part, 16b...Air supply side part, 19...
Throttle valve, 23... Auxiliary communication path, 25... Negative pressure valve, 26... Valve body, 27... Valve closing biasing means.
Claims (1)
１９より風下側の吸気側部分１６ａと風上側の給
気側部分１６ｂとを補助連通部２３で連通し、補
助連通路２３に負圧弁２５を介在させ、負圧弁２
５は弁体２６を閉弁付勢手段２７で閉弁側に付勢
して構成し、スロツトル弁１９の開弁角度が大き
いエンジン１の高負荷運転状態では、給気側部分
１６ｂと吸気側部分１６ａとの圧力差による開弁
力が閉弁手勢手段２７の閉弁付勢力よりも弱くな
つて負圧弁２５の弁体２６を閉じ、かつスロツト
ル弁１９の開弁角度が小さいエンジン１の無負荷
乃至低負荷運転状態では、前記圧力差による開弁
力が前記閉弁付勢力よりも強くなつて弁体２６を
開けるという値に閉弁付勢手段２７の閉弁付勢力
を設定した事を特徴とする混合気吸入機関の吸気
装置。 The intake side portion 16a on the leeward side and the intake side portion 16b on the windward side of the throttle valve 19 of the intake system 12 of the air-fuel mixture suction engine are communicated through an auxiliary communication portion 23, and a negative pressure valve 25 is interposed in the auxiliary communication path 23. , negative pressure valve 2
5 is constructed by urging the valve body 26 toward the valve closing side by a valve closing urging means 27, and when the throttle valve 19 is in a high-load operating state of the engine 1 with a large opening angle, the air supply side portion 16b and the intake side The valve-opening force due to the pressure difference with the portion 16a becomes weaker than the valve-closing force of the valve-closing force means 27, and the valve body 26 of the negative pressure valve 25 is closed, and the opening angle of the throttle valve 19 is small. In a load or low load operating state, the valve closing force of the valve closing biasing means 27 is set to a value such that the valve opening force due to the pressure difference becomes stronger than the valve closing biasing force and the valve body 26 is opened. The intake system of the air-fuel mixture intake engine is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1307985U JPS61130752U (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1307985U JPS61130752U (en) | 1985-01-31 | 1985-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61130752U true JPS61130752U (en) | 1986-08-15 |
Family
ID=30496750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1307985U Pending JPS61130752U (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130752U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505437A (en) * | 1973-05-17 | 1975-01-21 |
-
1985
- 1985-01-31 JP JP1307985U patent/JPS61130752U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505437A (en) * | 1973-05-17 | 1975-01-21 |
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