JPS5827535U - Flow path control device for helical intake port - Google Patents
Flow path control device for helical intake portInfo
- Publication number
- JPS5827535U JPS5827535U JP11218881U JP11218881U JPS5827535U JP S5827535 U JPS5827535 U JP S5827535U JP 11218881 U JP11218881 U JP 11218881U JP 11218881 U JP11218881 U JP 11218881U JP S5827535 U JPS5827535 U JP S5827535U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- valve
- pressure chamber
- intake port
- spiral part
- 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.)
- Granted
Links
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係る内燃機関の平面図、第２図は第１
図の■−■線に沿ってみた断面図、第３図はヘリカル型
吸気ポートの形状を示す斜視図、第４図は第３図の平面
図、第５図は第３図の分岐路に沿って切断した側面断面
図、第６図は第４図のＶＩ−ＶＩ線に沿ってみた断面図
、第７図は第４図の■−■線に沿ってみた断面図、第８
図は第４図の■−■線に沿ってみた断面図、第９図はロ
ータリ弁の側面断面図、第１０図は第９図の側面図、第
１１図は位置決めリングの平面図、第１２図は流路制御
装置の全体図である。
５・・・吸気弁、６・・・ヘリカル型吸気ポート、１４
Ｓ・・・分岐路、１８・・・ロータリ弁、４
θ・・・負圧ダイアフラム装置、４４・・・負圧室、４
７・・・大気連通制御弁、５０・・・逆止弁、５９・・
・アクセルペダル。Fig. 1 is a plan view of an internal combustion engine according to the present invention, and Fig. 2 is a plan view of an internal combustion engine according to the present invention.
Figure 3 is a perspective view showing the shape of the helical intake port, Figure 4 is a plan view of Figure 3, Figure 5 is a branch of Figure 3. 6 is a sectional view taken along line VI-VI in FIG. 4, FIG. 7 is a sectional view taken along line ■-■ in FIG. 4, and FIG.
The figures are a cross-sectional view taken along the line ■-■ in Fig. 4, Fig. 9 is a side sectional view of the rotary valve, Fig. 10 is a side view of Fig. 9, Fig. 11 is a plan view of the positioning ring, and Fig. 11 is a plan view of the positioning ring. FIG. 12 is an overall view of the flow path control device. 5... Intake valve, 6... Helical intake port, 14
S... Branch road, 18... Rotary valve, 4
θ... Negative pressure diaphragm device, 44... Negative pressure chamber, 4
7... Atmospheric communication control valve, 50... Check valve, 59...
·Accelerator pedal.
Claims (1)
接続されかつほぼまっすぐに延びる入口通路部とにより
構成されたヘリカル型吸気ポートにおいて、上記入口通
路部から分岐されて上記渦巻部の渦巻終端部に連通ずる
分岐路をシリンダヘッド内に形成して該分岐路内に負圧
ダイアフラム装置によって作動される常時閉鎖型開閉弁
を設け、該負圧ダイアフラム装置の負圧室を負圧導管を
介して気化器スロットル弁後流の吸気通路内に連結する
と共に該負圧導管内に該負圧室から吸気通路内へのみ流
通可能な逆止弁を挿着してスロットル弁開度が小さなと
きに上記負圧室内に負圧を蓄積することにより上記開閉
弁を開弁状態に保持し、アクセルペダルの踏込み動作に
応動する大気連通制御弁を上記負圧室に設けてアクセル
ペダルが所定量以上踏込まれたとき該負圧室を大気に連
通し、上記開閉弁を開弁するようにしたヘリカル型吸気
ポートの流路制御装置。In a helical intake port configured with a spiral part formed for an intake valve and an inlet passage part connected tangentially to the spiral part and extending almost straight, the spiral part is branched from the inlet passage part and connected to the spiral part. A branch passage communicating with the end of the spiral is formed in the cylinder head, and a normally closed on-off valve operated by a negative pressure diaphragm device is provided in the branch passage, and the negative pressure chamber of the negative pressure diaphragm device is connected to the negative pressure chamber of the negative pressure diaphragm device. A check valve is connected to the intake passage downstream of the carburetor throttle valve via a pressure conduit, and a check valve that allows flow only from the negative pressure chamber to the intake passage is inserted into the negative pressure conduit to control the throttle valve opening. When the pressure is small, the on-off valve is kept open by accumulating negative pressure in the negative pressure chamber, and an atmosphere communication control valve is provided in the negative pressure chamber that responds to the depression of the accelerator pedal. A flow path control device for a helical intake port, which communicates the negative pressure chamber with the atmosphere and opens the on-off valve when the valve is depressed by a predetermined amount or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11218881U JPS5827535U (en) | 1981-07-30 | 1981-07-30 | Flow path control device for helical intake port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11218881U JPS5827535U (en) | 1981-07-30 | 1981-07-30 | Flow path control device for helical intake port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5827535U true JPS5827535U (en) | 1983-02-22 |
| JPS6338336Y2 JPS6338336Y2 (en) | 1988-10-11 |
Family
ID=29906522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11218881U Granted JPS5827535U (en) | 1981-07-30 | 1981-07-30 | Flow path control device for helical intake port |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827535U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538408U (en) * | 1976-07-07 | 1978-01-24 | ||
| JPS5539348U (en) * | 1978-09-07 | 1980-03-13 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538408B2 (en) * | 1972-11-13 | 1978-03-28 | ||
| US4018400A (en) * | 1975-08-11 | 1977-04-19 | American Safety Equipment Corporation | Vehicle inertia sensors |
-
1981
- 1981-07-30 JP JP11218881U patent/JPS5827535U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538408U (en) * | 1976-07-07 | 1978-01-24 | ||
| JPS5539348U (en) * | 1978-09-07 | 1980-03-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6338336Y2 (en) | 1988-10-11 |
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