JPS6214357Y2 - - Google Patents
Info
- Publication number
- JPS6214357Y2 JPS6214357Y2 JP1980120228U JP12022880U JPS6214357Y2 JP S6214357 Y2 JPS6214357 Y2 JP S6214357Y2 JP 1980120228 U JP1980120228 U JP 1980120228U JP 12022880 U JP12022880 U JP 12022880U JP S6214357 Y2 JPS6214357 Y2 JP S6214357Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- valve
- auxiliary
- passage
- 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.)
- Expired
Links
- 239000000446 fuel Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 16
- 230000007423 decrease Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
【考案の詳細な説明】
自動車においてはエンジンのアイドル運転時に
前照灯，暖房機器，空調機器等を使用するとエン
ジン回転速度が低下し所要の暖機を行うことがで
きない。[Detailed Description of the Invention] In automobiles, when headlights, heating equipment, air conditioning equipment, etc. are used when the engine is running at idle, the engine rotational speed decreases, making it impossible to warm up the engine as required.
そこで、混合気の補助通路を絞り弁の下流側に
おいて吸気路に開口させて設け、絞り弁開度やエ
ンジンの状態により混合気を補給する必要がある
ときに補助通路の電磁弁を開かせることが実開昭
54−87320号公報に開示されている。しかしなが
ら、この公報開示の技術では状況に関係なく一定
量の混合気が画一的に補給されるので、アイドル
運転時に異なる負荷が作用したとき適正回転速度
にすることができない。更に、アイドル運転時の
負荷に応じて絞り弁開度を多段階に制御すること
が実開昭54−74824号公報に開示されているが、
高負荷に対応して絞り弁を大きく開かせると主燃
料吸出し領域となつて燃料流量がばらつき、アイ
ドリングを却つて不安定にするという心配があ
る。 Therefore, an auxiliary air-fuel mixture passage is provided downstream of the throttle valve and opens into the intake passage, and a solenoid valve in the auxiliary passage is opened when it is necessary to replenish the air-fuel mixture depending on the opening degree of the throttle valve or the condition of the engine. Gajimi Kaiaki
It is disclosed in Japanese Patent No. 54-87320. However, with the technique disclosed in this publication, a fixed amount of air-fuel mixture is uniformly replenished regardless of the situation, and therefore it is not possible to achieve an appropriate rotational speed when different loads are applied during idling operation. Furthermore, Japanese Utility Model Application No. 54-74824 discloses controlling the opening degree of the throttle valve in multiple stages according to the load during idling operation.
There is a concern that if the throttle valve is opened wide in response to high loads, it will become the main fuel suction area and the fuel flow rate will vary, making idling even more unstable.
本案はこれらの問題点を解決し、アイドル回転
速度を負荷の大小に応じて適正に上昇させること
ができる気化器の補助混合気供給装置を提供する
ものであつて、燃計計量用の一つジエツトおよび
二つの空気ブリードジエツトを有する混合気の補
助通路が絞り弁の下流側において吸気路へ開口し
て設けられていると共に、エンジンの動力を使用
する機器類の動作に応動して前記補助通路を開く
電磁駆動の制御弁が前記二つの空気ブリードジエ
ツトの下流に設けられており、且つ前記制御弁は
前記機器類の負荷の大小に応じて混合気供給量を
増減するように構成されていることを特徴として
いる。 以下本案の実施例を図面に就いて説明す
ると、第１図、第２図、第３図において、１は気
化器本体、２は吸気路、３は絞り弁、４は恒油面
室、５は恒油面室４から吸気路２の絞り弁３より
も下流へ至る補助通路、６は燃料計量用のジエツ
ト、７および８は空気ブリードジエツト、９は電
磁駆動の制御弁を示している。 The present invention solves these problems and provides an auxiliary mixture supply device for a carburetor that can appropriately increase the idle speed according to the size of the load. An auxiliary air-fuel mixture passage having a jet and two air bleed jets is provided downstream of the throttle valve and opens into the intake passage. An electromagnetically driven control valve that opens the passage is provided downstream of the two air bleed jets, and the control valve is configured to increase or decrease the amount of air-fuel mixture supplied depending on the load on the equipment. It is characterized by An embodiment of the present invention will be explained below with reference to the drawings. In Figs. 1, 2, and 3, 1 is the carburetor main body, 2 is the intake passage, 3 is the throttle valve, 4 is the constant oil level chamber, and 5 is the carburetor body. 6 shows a fuel metering jet, 7 and 8 are air bleed jets, and 9 is an electromagnetically driven control valve. .
第１図の実施例は従来の低速系統１０の低速ジ
エツト、第一空気ブリードジエツトを本案のジエ
ツト６、第一の空気ブリードジエツト７と兼用さ
せ、且つ制御弁９は二個の電磁弁９１，９２で構
成したものであつて、第一の電磁弁９１と第二の
電磁弁９２とは第二の空気ブリードジエツト８の
下流側に並列に設けられている。第一の電磁弁９
１の弁体１１１は前照灯、暖房機器のように比較
的小負荷の機器類を動作させる第一のスイツチ１
２１に応動してソレノイド１４１へ供給される電
流によつて吸引され第一の弁口１３１を開き、ま
た第二の電磁弁９２の弁体１１２はクーラのよう
に比較的大負荷の機器類を動作させる第二のスイ
ツチ１２２に応動してソレノイド１４２へ供給さ
れる電流によつて吸引され第二の弁口１３２を開
くもので、第二の弁口１３２は第一の弁口１３１
よりも大径に形成されている。 In the embodiment shown in FIG. 1, the low speed jet and first air bleed jet of the conventional low speed system 10 are used as the jet 6 and the first air bleed jet 7 of the present invention, and the control valve 9 is composed of two solenoid valves. The first solenoid valve 91 and the second solenoid valve 92 are provided in parallel on the downstream side of the second air bleed jet 8 . First solenoid valve 9
1 valve body 11 1 is the first switch 1 that operates relatively small load devices such as headlights and heating equipment.
2 1 , the first valve port 13 1 is opened by attracting current supplied to the solenoid 14 1 in response to the solenoid 14 1, and the valve body 11 2 of the second solenoid valve 9 2 is a relatively large valve like a cooler. The second valve port 132 is opened by attracting the current supplied to the solenoid 142 in response to the second switch 122 that operates the load equipment . First valve port 13 1
It is formed with a larger diameter.
第２図の実施例は補助通路５を独立して設ける
と共に二つの電磁弁９１，９２を並列に設けたも
のであつて、比較的小負荷の機器類と連動する第
一の電磁弁９１の弁体１１１は第一の弁口１３１
および第二の空気ブリードジエツト８を開閉す
る。従つて比較的大負荷の機器類と連動する第二
の電磁弁９２のみが開いたとき第１図の実施例の
ものに比べて若干高濃度の補助混合気が吸気路２
へ供給される。 In the embodiment shown in FIG. 2, an auxiliary passage 5 is provided independently and two solenoid valves 9 1 and 9 2 are provided in parallel. 9 1 valve body 11 1 is the first valve port 13 1
and opening and closing the second air bleed jet 8. Therefore, when only the second solenoid valve 92 , which operates in conjunction with equipment with a relatively large load, opens, an auxiliary air-fuel mixture with a slightly higher concentration than that of the embodiment shown in FIG. 1 flows into the intake passage 2.
supplied to
これら二つの実施例において、アイドル回転速
度は第一の電磁弁９１が開いたとき100〜200r.p.
m程度上昇し、第一と第二の電磁弁９１，９２が
ともに開いたときまたは第二の電磁弁９２が開い
たとき400〜500r.p.m程度上昇するように設計さ
れており、負荷の大小に応じて混合気供給量が増
減する。 In these two embodiments, the idle rotation speed is 100-200 r.p. when the first solenoid valve 91 is opened.
m, and when both the first and second solenoid valves 9 1 and 9 2 are opened, or when the second solenoid valve 9 2 is opened, it is designed to rise by about 400 to 500 r.pm. The amount of air-fuel mixture supplied increases or decreases depending on the load.
第３図の実施例は補助通路５を独立して設ける
と共に一個の電磁駆動の制御弁９を用いたもので
あつて、制御弁９のソレノイド１４は二組のコイ
ルを有しそれぞれ比較的小負荷の機器類を動作さ
せる第一のスイツチ１２１と比較的大負荷の機器
類を動作させる第二のスイツチ１２２に応動し、
弁体１１を三段階に作動して弁口１３の開度を変
える。即ち、弁口１３は第一のスイツチ１２１に
よつて少し開き、第二のスイツチ１２２によつて
これよりも大きく開き、二つのスイツチ１２１，
１２２がともにオンとなつたとき最大に開くもの
で、負荷の増大に応じて開度を順次大きくし混合
気供給量を増加して前記実施例と同程度にアイド
ル回転速度を上昇させるのである。 In the embodiment shown in FIG. 3, an auxiliary passage 5 is provided independently and a single electromagnetically driven control valve 9 is used.The solenoid 14 of the control valve 9 has two sets of coils, each of which is relatively small. In response to a first switch 12 1 that operates equipment with a load and a second switch 12 2 that operates equipment with a relatively large load,
The valve body 11 is operated in three stages to change the opening degree of the valve port 13. That is, the valve port 13 is opened slightly by the first switch 12 1 , opened more widely by the second switch 12 2 , and the two switches 12 1 ,
It opens to the maximum when both 12 and 2 are turned on, and as the load increases, the opening degree increases sequentially to increase the amount of air-fuel mixture supplied and increase the idle rotation speed to the same extent as in the previous embodiment. .
このように、本案は絞り弁の下流側へ開口する
補助通路を設け、この補助通路に燃料計量用の一
つのジエツトおよび二つの空気ブリードジエツト
を設けると共にこれらの下流に電磁駆動の制御弁
を設けたものであるから、エンジンの動力を使用
する機器類がアイドル運転時に動作したとき、そ
の負荷に応じた制御弁による補助通路の開きによ
り燃料流量が変化しても、二つの空気ブリードジ
エツトにより燃料流量に対応した適正量の空気を
導入し混合気を過濃或いは過薄とすることなく補
給するのである。そして、制御弁は混合気供給量
を段階的に変えるように補助通路を開くので、ア
イドル運転時に暖房機器、クーラ等を動作させて
も負荷に応じた適正量の補助混合気が自動的に供
給されて回転速度の低下を防止し所要の暖機を行
うものであり、また空燃比が殆んど変化しないた
め排気の成分に悪影響を与えることもないのであ
る。また、通常の走行時に機器類が動作したとき
も補助混合気が補給されるので、エンジンの出力
低下が防止できるものである。 In this way, the present invention provides an auxiliary passage that opens downstream of the throttle valve, and in this auxiliary passage, one jet for fuel metering and two air bleed jets are provided, and an electromagnetically driven control valve is installed downstream of these jets. Because of this, when equipment that uses engine power operates during idling operation, even if the fuel flow rate changes due to the opening of the auxiliary passage by the control valve according to the load, the two air bleed jets will remain the same. This allows an appropriate amount of air to be introduced in accordance with the fuel flow rate to replenish the air-fuel mixture without making it too rich or too lean. The control valve opens the auxiliary passage to change the amount of air-fuel mixture supplied in stages, so even if heating equipment, coolers, etc. are operated during idling, the appropriate amount of auxiliary air-fuel mixture is automatically supplied according to the load. This prevents the rotational speed from decreasing and performs the necessary warm-up, and since the air-fuel ratio hardly changes, there is no adverse effect on the components of the exhaust gas. Furthermore, since the auxiliary air-fuel mixture is replenished even when equipment operates during normal driving, it is possible to prevent a drop in engine output.
第１図、第２図、第３図は本案のそれぞれ異な
る実施例を示す縦断面図である。
２……吸気路、３……絞り弁、４……恒油面
室、５……補助通路、６……ジエツト、７，８…
…空気ブリードジエツト、９……制御弁、９１，
９２……電磁弁、１１，１１１，１１２……弁
体、１３，１３１，１３２……弁口。
FIGS. 1, 2, and 3 are longitudinal sectional views showing different embodiments of the present invention. 2... Intake path, 3... Throttle valve, 4... Constant oil level chamber, 5... Auxiliary passage, 6... Jet, 7, 8...
...Air bleed jet, 9...Control valve, 9 1 ,
9 2 ... Solenoid valve, 11, 11 1 , 11 2 ... Valve body, 13, 13 1 , 13 2 ... Valve port.
Claims (1)
気ブリードジエツト７，８を有する混合気の補助
通路５が絞り弁３の下流側において吸気路２へ開
口して設けられていると共に、エンジンの動力を
使用する機器類の動作に応動して前記補助通路５
を開く電磁駆動の制御弁９が前記二つの空気ブリ
ードジエツト７，８の下流に設けられており、且
つ前記制御弁９は前記機器類の負荷の大小に応じ
て混合気供給量を増減するように構成されている
気化器の補助混合気供給装置。 An auxiliary mixture passage 5 with a jet 6 for fuel metering and two air bleed jets 7, 8 is provided downstream of the throttle valve 3 and opens into the intake passage 2, and also for controlling the power of the engine. The auxiliary passage 5
An electromagnetically driven control valve 9 that opens is provided downstream of the two air bleed jets 7 and 8, and the control valve 9 increases or decreases the amount of air-fuel mixture supplied depending on the load of the equipment. An auxiliary mixture supply device for a carburetor configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980120228U JPS6214357Y2 (en) | 1980-08-25 | 1980-08-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980120228U JPS6214357Y2 (en) | 1980-08-25 | 1980-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5743343U JPS5743343U (en) | 1982-03-09 |
| JPS6214357Y2 true JPS6214357Y2 (en) | 1987-04-13 |
Family
ID=29480887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980120228U Expired JPS6214357Y2 (en) | 1980-08-25 | 1980-08-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214357Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055089U (en) * | 1983-09-26 | 1985-04-17 | ヒロセ電機株式会社 | Chip carrier connector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836834Y2 (en) * | 1977-11-08 | 1983-08-19 | 三菱自動車工業株式会社 | Multistage control device for throttle valve during idling of internal combustion engine |
| JPS5487320U (en) * | 1977-12-02 | 1979-06-20 |
-
1980
- 1980-08-25 JP JP1980120228U patent/JPS6214357Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5743343U (en) | 1982-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3548792A (en) | Control apparatus for internal-combustion engines | |
| US4106464A (en) | Programmed control system for a lean-burning internal combustion engine | |
| US4426968A (en) | Carburetor with means for compensation of idling revolution | |
| US6634334B1 (en) | Engine idle speed control device | |
| JPS60243330A (en) | Apparatus for controlling quantity of intake air supplied to engine | |
| JPS6214357Y2 (en) | ||
| JPS5838350A (en) | Control system for operation of cooler compressor for vehicle | |
| US4532904A (en) | Air-fuel ratio control device for internal combustion engines | |
| JPS6215477Y2 (en) | ||
| JPS6196145A (en) | Engine | |
| JPS6120284Y2 (en) | ||
| JPH0144776Y2 (en) | ||
| JPH0118839Y2 (en) | ||
| JPS5834668B2 (en) | Vaporizer acceleration pump mechanism | |
| KR840001349B1 (en) | Air-fuel ration controller for carburetor | |
| JPH05125947A (en) | Intake control device of internal combustion engine | |
| JP2568992B2 (en) | Fuel injection device | |
| JPS631455B2 (en) | ||
| JPS61149556A (en) | Fuel supply device of internal combustion engine | |
| JPS6310297B2 (en) | ||
| JPH04311659A (en) | Fuel supply quantity control method and carburetor | |
| JPS6254988B2 (en) | ||
| JPH07158512A (en) | Fuel feeder for internal combustion engine | |
| JPS62210250A (en) | Variable venturi type carburetor | |
| JPS62218644A (en) | Pressure balancing constant negative pressure type carburetor |