JPS6315457B2 - - Google Patents
Info
- Publication number
- JPS6315457B2 JPS6315457B2 JP55043598A JP4359880A JPS6315457B2 JP S6315457 B2 JPS6315457 B2 JP S6315457B2 JP 55043598 A JP55043598 A JP 55043598A JP 4359880 A JP4359880 A JP 4359880A JP S6315457 B2 JPS6315457 B2 JP S6315457B2
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- control device
- pressure chamber
- regulator
- chamber
- 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
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【発明の詳細な説明】
本発明は、気化器のスロツトルバルブの制御装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a throttle valve of a carburetor.
従来のこの種の制御装置は、例えば第１図に示
した如く、ボデー１と、ボデー１を負圧室２と大
気室とに画成し且つ図示しない気化器のスロツト
ルバルブにロツド３を介して連結されているダイ
アフラム４と、ダイアフラム４を大気圧に抗する
方向に弾圧しているスプリング５と、ダイアフラ
ム４の変位を検出するためのポジシヨンセンサー
６とから成る制御装置本体７と、一端が絞り８を
介して負圧室２に連通され且つ他端が図示しない
レギユレータに連通されていてポジシヨンセンサ
ー６に接続される図示しないコンピユータがポジ
シヨンセンサー６で検出したダイアフラム４の変
位に基づいて出力する出力信号に応じて第２図に
示した如くデユーテイt2／t1により開弁時間が制
御されることによりレギユレータから負圧室に加
えられる負圧を制御する電磁弁９と、一端が負圧
室２に連通され且つ他端が大気に開放されている
絞り弁１０とから構成されていたが、このような
構成の場合は、負圧室２の負圧がレギユレータ負
圧まで上昇し得るようにするために絞り弁１０を
小さくすると第３図Ａに示す如くデユーテイに対
する負圧の変化に直線性がなくなり、又直線性を
もたせるために絞り１０を大きくすると今度は第
３図Ｂに示す如く負圧室２の負圧がデユーテイ
100％でもレギユレータ負圧まで上昇し得ないと
いう欠点があつた。又、第４図に示した如く、絞
り１０の代りにもう一個の電磁弁９の一端を絞り
８を介して負圧室２に連通させ且つ該電磁弁９の
他端を大気に開放させて成る他の形式の気化器の
スロツトルバルブの制御装置もあつたが、このよ
うな構成の場合は、電磁弁９を二個用いることか
ら二つのデユーテイを制御する必要があり、而も
デユーテイの脈動が直ちに負圧室２の負圧の脈動
として現われるためダイアフラム４が脈動し、ス
ロツトルバルブ開度を適正値に正しく保持させる
ことができないという欠点があつた。 A conventional control device of this kind, as shown in FIG. 1, for example, includes a body 1, a negative pressure chamber 2 and an atmospheric chamber, and a rod 3 connected to a throttle valve of a carburetor (not shown). A control device main body 7 consisting of a diaphragm 4 connected through the diaphragm 4, a spring 5 pressing the diaphragm 4 in a direction against atmospheric pressure, and a position sensor 6 for detecting displacement of the diaphragm 4; One end communicates with the negative pressure chamber 2 via a throttle 8, the other end communicates with a regulator (not shown), and a computer (not shown) connected to the position sensor 6 responds to the displacement of the diaphragm 4 detected by the position sensor 6. an electromagnetic valve 9 that controls the negative pressure applied from the regulator to the negative pressure chamber by controlling the valve opening time according to the duty t 2 /t 1 as shown in FIG. The throttle valve 10 has one end communicating with the negative pressure chamber 2 and the other end being open to the atmosphere, but in the case of such a configuration, the negative pressure in the negative pressure chamber 2 reaches the regulator negative pressure. If the throttle valve 10 is made smaller in order to allow the valve to rise, the change in negative pressure with respect to the duty will not be linear, as shown in Figure 3A, and if the throttle valve 10 is made larger to provide linearity, then the change in negative pressure as shown in Figure 3A will be lost. As shown in B, the negative pressure in the negative pressure chamber 2 is on duty.
The drawback was that even at 100%, the pressure could not rise to the regulator negative pressure. Also, as shown in FIG. 4, instead of the throttle 10, one end of another solenoid valve 9 is communicated with the negative pressure chamber 2 via the throttle 8, and the other end of the solenoid valve 9 is opened to the atmosphere. There have been other types of throttle valve control devices for carburetors, but with this configuration, it is necessary to control two duties because two solenoid valves 9 are used, and the duty The pulsation immediately appears as a pulsation in the negative pressure in the negative pressure chamber 2, which causes the diaphragm 4 to pulsate, resulting in a disadvantage that the throttle valve opening cannot be correctly maintained at an appropriate value.
本発明は、上記問題点に鑑み、新規な構成を採
用することによつて制御装置本体の負圧室の負圧
がレギユレータ負圧まで上昇し得ると共に電磁弁
のデユーテイに対する該負圧の変化に直線性をも
たせるようにし更に該電磁弁も一個で済むように
した気化器のスロツトルバルブの制御装置を提供
せんとするものであるが、以下第５図に示した一
実施例に基づき上記従来例と同一の部材には同一
符号を付してこれを説明すれば、１１は、ボデー
１２と、ボデー１２を調圧室１３と該調圧室１３
の反対側の負圧室１４とに画成しているダイアフ
ラム１５と、ダイアフラム１５に固着されていて
調圧室１３の出口側通路１３ａの開口面積を変化
させるための調圧バルブ１６と、調圧バルブ１６
を閉弁方向に弾圧しているセツト圧調整スプリン
グ１７と、セツト圧調整スプリング１７の弾力を
変化させるための調整ネジ１８とから成るレギユ
レータである。なお、レギユレータ１１の調圧室
１３の入口側通路１３ｂは図示しない負圧マニホ
ールドに連通せしめられ且つ出口側通路１３ａは
制御装置本体７の負圧室２に連通せしめられてい
る。又、レギユレータ１１の負圧室１４の入口側
通路１４ａは絞り８と電磁弁９を介して制御装置
本体７の負圧室２に連通せしめられ且つ出口側通
路１４ｂは絞り１０を介して大気に開放されてい
る。また、従来例と同様に気化器のスロツトルバ
ルブはロツド３を介してダイアフラム４に連結さ
れている。 In view of the above-mentioned problems, the present invention adopts a new configuration that allows the negative pressure in the negative pressure chamber of the control device main body to rise to the regulator negative pressure, and also allows the negative pressure to change with respect to the duty of the solenoid valve. It is an object of the present invention to provide a control device for a throttle valve of a carburetor which provides linearity and also requires only one solenoid valve. The same members as those in the example will be described with the same reference numerals. 11 is a body 12, a pressure regulating chamber 13, and a pressure regulating chamber 13.
a diaphragm 15 defined in the negative pressure chamber 14 on the opposite side of the pressure regulating chamber 13; pressure valve 16
This regulator consists of a set pressure adjustment spring 17 that presses the valve in the valve closing direction, and an adjustment screw 18 that changes the elasticity of the set pressure adjustment spring 17. The inlet passage 13b of the pressure regulating chamber 13 of the regulator 11 is communicated with a negative pressure manifold (not shown), and the outlet passage 13a is communicated with the negative pressure chamber 2 of the control device main body 7. Further, the inlet side passage 14a of the negative pressure chamber 14 of the regulator 11 is communicated with the negative pressure chamber 2 of the control device main body 7 via the throttle 8 and the electromagnetic valve 9, and the outlet side passage 14b is connected to the atmosphere through the throttle 10. It's open. Further, the throttle valve of the carburetor is connected to the diaphragm 4 via the rod 3, as in the prior art.
本発明による流量制御装置は上述の如く構成さ
れているから、マニホールド負圧がレギユレータ
１１の調圧室１３で負圧室１４へ後述の如くして
導入される負圧によつて制御されるダイアフラム
１５に固着された調圧バルブ１６が調圧室１３の
出口側通路１３ａの開度面積を変化させることに
より調圧された後制御装置７の負圧室２へ導びか
れ、この負圧室２内の負圧によつてダイアフラム
４の位置が決定され、このダイアフラム４の変位
によりスロツトルバルブの開度が決定される。一
方、負圧室２内の負圧の大きさはダイアフラム４
の変位量としてポジシヨンセンサー６により検出
され、かくして得られたポジシヨンセンサー６か
らの出力は図示しないコンピユータを介して電磁
弁９を開閉させるデユーテイとして出力される。
この場合、デユーテイは負圧室２内へ導入される
負圧の大きさにほぼ比例して増大するように上記
コンピユータの演算パタメータが選定されてい
る。かくしてレギユレータ１１の調圧室１３で調
圧された負圧は電磁弁９を介してレギユレータ１
１の負圧室１４へ導びかれるので、電磁弁９によ
つて負圧室１４内の負圧が制御され、これによつ
てレギユレータ１１のセツト圧が制御される。従
つて、電磁弁９によつて制御装置本体７の負圧室
２に加わる負圧が制御され、これによつてダイア
フラム４が変位してスロツトルバルブの開度が制
御されることになるが、この場合、絞り１０を大
きくすることによりデユーテイに対する負圧室２
の負圧の変化は第６図に示した如くなつた。即
ち、本実施例の場合、負圧室２の負圧がレギユレ
ータ負圧まで上昇し得ると共にデユーテイに対す
る該負圧の変化に直線性が備つている。 Since the flow control device according to the present invention is configured as described above, the manifold negative pressure is controlled by the negative pressure introduced into the negative pressure chamber 14 in the pressure regulating chamber 13 of the regulator 11 as described below. After the pressure regulating valve 16 fixed to the pressure regulating valve 15 is regulated by changing the opening area of the outlet side passage 13a of the pressure regulating chamber 13, the pressure is guided to the negative pressure chamber 2 of the control device 7, and this negative pressure chamber The position of the diaphragm 4 is determined by the negative pressure inside the throttle valve 2, and the opening degree of the throttle valve is determined by the displacement of the diaphragm 4. On the other hand, the magnitude of the negative pressure in the negative pressure chamber 2 is determined by the diaphragm 4.
The displacement amount is detected by the position sensor 6, and the output from the position sensor 6 thus obtained is outputted as a duty for opening and closing the solenoid valve 9 via a computer (not shown).
In this case, the calculation parameters of the computer are selected so that the duty increases approximately in proportion to the magnitude of the negative pressure introduced into the negative pressure chamber 2. Thus, the negative pressure regulated in the pressure regulating chamber 13 of the regulator 11 is transferred to the regulator 1 via the solenoid valve 9.
1, the negative pressure in the negative pressure chamber 14 is controlled by the electromagnetic valve 9, and thereby the set pressure of the regulator 11 is controlled. Therefore, the negative pressure applied to the negative pressure chamber 2 of the control device main body 7 is controlled by the electromagnetic valve 9, thereby displacing the diaphragm 4 and controlling the opening degree of the throttle valve. In this case, by enlarging the throttle 10, the negative pressure chamber 2 for the duty is reduced.
The change in negative pressure was as shown in Figure 6. That is, in the case of this embodiment, the negative pressure in the negative pressure chamber 2 can rise to the regulator negative pressure, and the change in the negative pressure with respect to duty is linear.
以上のように、本発明による気化器のスロツト
ルバルブの制御装置は、制御装置本体の負圧室の
負圧をレギユレータ負圧まで上昇し得ると同時に
電磁弁に作用するデユーテイに対する前記負圧室
の負圧の変化に直線性が付与されることとなり、
しかも電磁弁一個を備えるだけでこのような作用
効果を達成できるのでデユーテイの脈動が直ちに
ダイアフラムの脈動として現れることがなく、且
つ製造コストが安いという利点もある。 As described above, the control device for a throttle valve of a carburetor according to the present invention can raise the negative pressure in the negative pressure chamber of the control device main body to the regulator negative pressure, and at the same time, the negative pressure chamber can be used for the duty acting on the solenoid valve. Linearity is given to the change in negative pressure of
In addition, since such effects can be achieved with just one solenoid valve, duty pulsations do not immediately appear as diaphragm pulsations, and manufacturing costs are low.
第１図は従来の流量制御装置の要部垂直断面
図、第２図は上記従来例の電磁弁に作用するデユ
ーテイを示した図、第３図は上記従来例における
デユーテイに対する制御装置本体の負圧室の負圧
の変化を示したグラフ、第４図は他の従来例の要
部垂直断面図、第５図は本発明による流量制御装
置の一実施例の要部垂直断面図、第６図は上記実
施例におけるデユーテイに対する制御装置本体の
負圧室の負圧の変化を示したグラフである。
１……ボデー、２……負圧室、３……ロツド、
４……ダイアフラム、５……スプリング、６……
ポジシヨンセンサー、７……制御装置本体、８…
…絞り、９……電磁弁、１０……絞り、１１……
レギユレータ、１２……ボデー、１３……調圧
室、１４……負圧室、１５……ダイアフラム、１
６……調圧バルブ、１７……セツト圧調整スプリ
ング、１８……調整ネジ。
Fig. 1 is a vertical sectional view of the main part of a conventional flow control device, Fig. 2 is a diagram showing the duty acting on the solenoid valve of the conventional example, and Fig. 3 is a diagram showing the negative impact of the main body of the control device on the duty in the conventional example. A graph showing changes in the negative pressure in the pressure chamber. FIG. 4 is a vertical cross-sectional view of the main part of another conventional example. FIG. 5 is a vertical cross-sectional view of the main part of an embodiment of the flow control device according to the present invention. The figure is a graph showing changes in the negative pressure in the negative pressure chamber of the control device main body with respect to duty in the above embodiment. 1...Body, 2...Negative pressure chamber, 3...Rod,
4...Diaphragm, 5...Spring, 6...
Position sensor, 7... Control device main body, 8...
...Aperture, 9...Solenoid valve, 10...Aperture, 11...
Regulator, 12... Body, 13... Pressure regulation chamber, 14... Negative pressure chamber, 15... Diaphragm, 1
6...Pressure adjustment valve, 17...Set pressure adjustment spring, 18...Adjustment screw.
Claims (1)
置を変位せしめる制御装置本体の負圧室と、前記
ダイアフラムに連結されてダイアフラムの変位に
連動して開度を変位せしめる気化器のスロツトル
バルブと、前記制御装置本体の負圧室に連通する
レギユレータの調圧室と、レギユレータのダイア
フラムを介して前記調圧室に隣接して配設されて
いる前記制御装置本体の負圧室に連通してなるレ
ギユレータの負圧室と、前記制御装置本体の負圧
室と前記レギユレータの負圧室との間に配設して
なる前記負圧室の負圧を制御する電磁弁とを備
え、前記電磁弁によつてレギユレータのセツト圧
を制御することにより前記スロツトルバルブの開
度を制御するようにしたことを特徴とする気化器
のスロツトルバルブの制御装置。1 a negative pressure chamber of the control device main body that displaces the position of the diaphragm of the control device main body by negative pressure; a throttle valve of the carburetor that is connected to the diaphragm and whose opening degree is changed in conjunction with the displacement of the diaphragm; A regulator comprising a pressure regulating chamber of a regulator that communicates with a negative pressure chamber of a control device main body, and a negative pressure chamber of the control device main body that is arranged adjacent to the pressure regulating chamber via a diaphragm of the regulator. a negative pressure chamber, and a solenoid valve for controlling the negative pressure of the negative pressure chamber disposed between the negative pressure chamber of the control device main body and the negative pressure chamber of the regulator; A control device for a throttle valve of a carburetor, characterized in that the opening degree of the throttle valve is controlled by controlling the set pressure of a regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4359880A JPS56141037A (en) | 1980-04-04 | 1980-04-04 | Controlling device of flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4359880A JPS56141037A (en) | 1980-04-04 | 1980-04-04 | Controlling device of flow rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56141037A JPS56141037A (en) | 1981-11-04 |
| JPS6315457B2 true JPS6315457B2 (en) | 1988-04-05 |
Family
ID=12668241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4359880A Granted JPS56141037A (en) | 1980-04-04 | 1980-04-04 | Controlling device of flow rate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56141037A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4747132B2 (en) * | 2007-05-25 | 2011-08-17 | 東邦瓦斯株式会社 | Power generation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5610903Y2 (en) * | 1975-11-08 | 1981-03-12 |
-
1980
- 1980-04-04 JP JP4359880A patent/JPS56141037A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56141037A (en) | 1981-11-04 |
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