JPS60157968U - After-fire prevention device for internal combustion engines - Google Patents
After-fire prevention device for internal combustion enginesInfo
- Publication number
- JPS60157968U JPS60157968U JP4494384U JP4494384U JPS60157968U JP S60157968 U JPS60157968 U JP S60157968U JP 4494384 U JP4494384 U JP 4494384U JP 4494384 U JP4494384 U JP 4494384U JP S60157968 U JPS60157968 U JP S60157968U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- internal combustion
- valve
- prevention device
- guide passage
- 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
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (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１〜４図はこの考案の実施例を示すものである。第１
，２図はこの考案の第１実施例を示し、第１図はアイド
リングＣ（＞規制量によるアフタファイヤの発生頻度状
態をボした線図、第２図は装置の概略図である。第３図
はこの考案の第２実施 、例を示し、装置の概略図で
ある。第４図はこの考案の第３実施例を示し、装置の概
略図である。
図において、２は吸気通路、４は絞り弁、６は吸気ポー
ト、１２は第１ポート、１４は第１吸気誘導通路、１６
はノズル、１８は第２ポート、２０は第２吸気誘導通路
、２４は弁機構、２８は弁体、３０はアクチュエータ、
４４は負圧通路、５２は電磁弁、５４はバキュームスイ
ッチ、６２はアクセル開度スイッチ、そして６６は回転
スイ゛Ｉチである。
１ ２ ３ ４ ５（ｘ＋ｏｏｏ）エ
ンジン回＆＆ Ｎｅ
０２４
亀ｌ−
補正 昭５９．４．４
実用新案登録請求の範囲を次のように補正する。
・実用新案登録請求の範囲
１ 気化器絞り弁下流側の第１ボートに開口始端する第
１吸気誘導通路を吸気ポートに開口終端して設け、前記
気化器絞り弁上流側の第２ポートに開口始端する第２吸
気誘導通路を前記第１吸気誘導通路に開口終端して設け
、機関減速運転時には前記第２吸気誘導通路を閉鎖する
弁機構を設けたことを特徴とする内燃機関のアフタファ
イヤ防止装置。
２ 前記弁機構は、弁体とこの弁体を作動するアクチュ
エータとからなり、機関減速運転時の吸気負圧がアイド
リング時の吸気負圧よりも大なる場合に前記アクチュエ
ータを作動させる弁機構である実用新案登録請求の範囲
第１項記載の内燃ｉ関のアフタファイヤ防止装置。
３ 前記弁機構は、吸気負圧によりオン作動するバキュ
ｉムスイッチにより電磁弁を作動させる弁機構である実
用新案登録請求の範囲第１項記載の内燃機関のアフタフ
ァイヤ防止装置。
４ 前記電磁弁は、アイドリング開度を するアクセ
ル開度スイッチとアイドリング回転数以上を検知する回
転スイッチとからの信号により □作動する電
磁弁である実用新案登録請求の範囲第３項記載の内燃機
関のアフタファイヤ防止装置。1 to 4 show examples of this invention. 1st
, 2 shows the first embodiment of this invention, FIG. 1 is a diagram omitting the frequency of occurrence of afterfire due to idling C (> regulation amount), and FIG. 2 is a schematic diagram of the device. The figure shows a second embodiment of this invention, an example, and is a schematic diagram of the device. Fig. 4 shows a third embodiment of this invention, and is a schematic diagram of the device. In the figure, 2 is an intake passage, 4 1 is a throttle valve, 6 is an intake port, 12 is a first port, 14 is a first intake guide passage, 16
18 is a nozzle, 18 is a second port, 20 is a second intake guide passage, 24 is a valve mechanism, 28 is a valve body, 30 is an actuator,
44 is a negative pressure passage, 52 is a solenoid valve, 54 is a vacuum switch, 62 is an accelerator opening switch, and 66 is a rotary switch. 1 2 3 4 5 (x+ooo) engine times && Ne 024 Turtle l- Amendment April 4, 1982 The scope of the claims for utility model registration is amended as follows.・Claim 1 for Utility Model Registration A first intake guide passage is provided which starts and ends in a first port downstream of the carburetor throttle valve and ends in an intake port, and opens at a second port upstream of the carburetor throttle valve. Afterfire prevention for an internal combustion engine, characterized in that a second intake guide passage having a starting end is provided with an opening end at the first intake guide passage, and a valve mechanism is provided for closing the second intake guide passage during engine deceleration operation. Device. 2. The valve mechanism is composed of a valve body and an actuator that operates the valve body, and is a valve mechanism that operates the actuator when the intake negative pressure during engine deceleration operation is greater than the intake negative pressure during idling. An internal combustion engine afterfire prevention device according to claim 1 of the registered utility model claim. 3. The afterfire prevention device for an internal combustion engine according to claim 1, wherein the valve mechanism is a valve mechanism that operates a solenoid valve by a vacuum switch that is turned on by intake negative pressure. 4. The internal combustion engine according to claim 3, wherein the solenoid valve is a solenoid valve operated by a signal from an accelerator opening switch that determines the idling opening and a rotation switch that detects the idling rotation speed or higher. afterfire prevention device.
Claims (1)
１吸気誘導通路を吸気ポートに開口終端して設け、前記
気化器絞り弁上流側の第２ポートに開口始端する第２吸
気誘導通路を前記第１吸気誘導通路に開口終端して設け
、機関減速運転時には前記第２吸気誘導通路を閉鎖する
弁機構を設けたことを特徴とする内燃機関のアフタファ
イヤ防止装置。 ２ 前記弁機構は、弁体とこの弁体を作動するアクチュ
エータとからなり、機関減速運転時の吸気負圧がアイド
リング時の吸気負圧よりも犬なる場合に前記アクチュエ
ータを作動させる弁機構である実用新案登録請求の範囲
第１項記載の内燃機関のアフタファイヤ防止装置。 ３ 前記弁機構は、吸気負圧によりオン作動するバキュ
ームスイッチにより電磁弁を作動させる弁機構である実
用新案登録請求の範囲第１項記載の内燃機関のアフタフ
ァイヤ防止装置。 ４ 前記電磁弁は、アクセル開度スイッチと回転スオツ
チの少なくとも、一方により作動す−る電磁弁である実
用新案登録請求の範囲第３項記載の内燃機関のアフタフ
ァイヤ防止装置。[Claims for Utility Model Registration] 1. A first intake guide passage having an opening start end at a first port downstream of the carburetor throttle valve and an opening end opening at the intake port, and a first intake guide passage opening opening end at the intake port, and a second intake passage upstream of the carburetor throttle valve. An afterfire for an internal combustion engine, characterized in that a second intake guide passage having an open end and an opening end is provided in the first intake guide passage, and a valve mechanism is provided for closing the second intake guide passage during engine deceleration operation. Prevention device. 2. The valve mechanism is composed of a valve body and an actuator that operates the valve body, and is a valve mechanism that operates the actuator when the intake negative pressure during engine deceleration operation is lower than the intake negative pressure during idling. An afterfire prevention device for an internal combustion engine according to claim 1 of the registered utility model claim. 3. The afterfire prevention device for an internal combustion engine according to claim 1, wherein the valve mechanism is a valve mechanism that operates a solenoid valve by a vacuum switch that is turned on by intake negative pressure. 4. The afterfire prevention device for an internal combustion engine according to claim 3, wherein the solenoid valve is a solenoid valve operated by at least one of an accelerator opening switch and a rotary switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4494384U JPS60157968U (en) | 1984-03-30 | 1984-03-30 | After-fire prevention device for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4494384U JPS60157968U (en) | 1984-03-30 | 1984-03-30 | After-fire prevention device for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60157968U true JPS60157968U (en) | 1985-10-21 |
Family
ID=30557986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4494384U Pending JPS60157968U (en) | 1984-03-30 | 1984-03-30 | After-fire prevention device for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60157968U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431228U (en) * | 1977-08-05 | 1979-03-01 | ||
| JPS5762919A (en) * | 1980-09-29 | 1982-04-16 | Suzuki Motor Co Ltd | Internal combustion engine |
| JPS5893950A (en) * | 1981-11-30 | 1983-06-03 | Suzuki Motor Co Ltd | Air intake control device at the time of deceleration |
-
1984
- 1984-03-30 JP JP4494384U patent/JPS60157968U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431228U (en) * | 1977-08-05 | 1979-03-01 | ||
| JPS5762919A (en) * | 1980-09-29 | 1982-04-16 | Suzuki Motor Co Ltd | Internal combustion engine |
| JPS5893950A (en) * | 1981-11-30 | 1983-06-03 | Suzuki Motor Co Ltd | Air intake control device at the time of deceleration |
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