JPH0777109A - Mixture feeder of gas fuel engine - Google Patents
Mixture feeder of gas fuel engineInfo
- Publication number
- JPH0777109A JPH0777109A JP22078093A JP22078093A JPH0777109A JP H0777109 A JPH0777109 A JP H0777109A JP 22078093 A JP22078093 A JP 22078093A JP 22078093 A JP22078093 A JP 22078093A JP H0777109 A JPH0777109 A JP H0777109A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- regulator
- pressure
- intake
- 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
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は気体燃料機関の混合気供
給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-fuel mixture supply device for a gas fuel engine.
【０００２】[0002]
【従来の技術】ボンベに備えた圧縮気体燃料を、機関に
供給するシステムとしては、キャブレタによるものが一
般的であるが、ベンチュリによる絞りのために、体積効
率の減少、吸気仕事の増加が生じ、エンジンの出力及び
効率の低下を招く。2. Description of the Related Art A carburetor is generally used as a system for supplying compressed gas fuel provided in a cylinder to an engine. However, due to throttling by a venturi, volume efficiency is reduced and intake work is increased. However, this causes a reduction in engine output and efficiency.
【０００３】そこで、ボンベ内圧を利用してレギュレー
タによって燃料圧力を正圧に調圧（減圧）し、吸気通路
のベンチュリを廃止して、燃料を空気と混合してエンジ
ンに供給する方式が考案されている。この従来技術では
複数段の減圧室を持つレギュレータにより、大気圧と比
較して燃料圧力を調圧して、調圧された正圧の燃料を吸
気通路に導入している。Therefore, a system has been devised in which the fuel pressure is adjusted to a positive pressure (reduced pressure) by a regulator using the cylinder internal pressure, the venturi in the intake passage is eliminated, and the fuel is mixed with air and supplied to the engine. ing. In this conventional technique, a regulator having a plurality of pressure reducing chambers regulates the fuel pressure as compared with the atmospheric pressure, and introduces the regulated positive pressure fuel into the intake passage.
【０００４】[0004]
【発明が解決しようとする課題】前記従来の後者では、
吸入空気量により吸気通路圧力が変動する。即ち吸入空
気量により吸気通路圧力と燃料圧力との差圧が変動す
る。その結果吸入空気量により空燃比が変動するという
問題点があった。SUMMARY OF THE INVENTION In the above-mentioned conventional latter,
The intake passage pressure changes depending on the intake air amount. That is, the differential pressure between the intake passage pressure and the fuel pressure varies depending on the intake air amount. As a result, there is a problem that the air-fuel ratio changes depending on the intake air amount.
【０００５】又、吸気管圧力とエンジン回転数により燃
料通路面積を決定しているため、仕様の異なるエンジン
毎の適合が面倒で、システムコストが高くつくという問
題点があった。Further, since the fuel passage area is determined by the intake pipe pressure and the engine speed, it is troublesome to adapt each engine having different specifications, and the system cost becomes high.
【０００６】そこで、本発明はこのような問題点を解消
できる気体燃料機関の混合気供給装置を提供することを
目的とする。Therefore, it is an object of the present invention to provide a gas mixture supply device for a gas fuel engine which can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に、請求項１の発明は、ボンベに蓄えた圧縮気体燃料
を、複数段の減圧室を持つレギュレータにより所定の正
圧力に調圧して、ミキサ（３０）の吸気通路（３２）に
噴射供給する混合気供給装置において、燃料噴射口（３
３）付近の吸気圧力をレギュレータ（１）の最終減圧器
（３）の比較室（１５）側へ導入すると共に、レギュレ
ータ（１）から燃料噴射口（３３）へ燃料を導入する燃
料通路（３１）に燃料制御弁（３４）を設けて該燃料制
御弁（３４）を吸気通路（３２）に設けたスロットル弁
（３５）に連動させ、両弁（３５）（３４）がほぼ同じ
開度となるように構成したことを特徴とする。In order to achieve the above object, the invention of claim 1 regulates the compressed gaseous fuel stored in a cylinder to a predetermined positive pressure by a regulator having a plurality of decompression chambers. , The fuel injection port (3) in the mixture supply device for injecting and supplying the mixture to the intake passage (32) of the mixer (30).
3) A fuel passage (31) for introducing intake pressure near the regulator (1) to the comparison chamber (15) side of the final pressure reducer (3) and introducing fuel from the regulator (1) to the fuel injection port (33). ) Is provided with a fuel control valve (34) and the fuel control valve (34) is linked to a throttle valve (35) provided in the intake passage (32) so that both valves (35) (34) have substantially the same opening degree. It is characterized in that it is configured as follows.
【０００８】請求項２の発明は、ボンベに蓄えた圧縮気
体燃料を、複数段の減圧室を持つレギュレータにより所
定の正圧力に調圧して、ミキサ（３０）の吸気通路（３
２）に噴射供給する混合気供給装置において、燃料噴射
口（３３）付近の吸気圧力をレギュレータ（１）の最終
減圧器（３）の比較室（１５）側へ導入すると共に、レ
ギュレータ（１）から燃料噴射口（３３）へ燃料を導入
する燃料通路（３１）の通路面積を加減する電気アクチ
ュエータ（４６）と、吸気通路（３２）のスロットル弁
（３５）の開度を検出するスロットル開度検出手段（４
５）と、該スロットル開度検出手段（４５）の信号に基
いてスロットル弁（３５）の開度に比例した燃料通路面
積を与えるように前記電気アクチュエータ（４６）を操
作する電気系とを具備したことを特徴とする。According to a second aspect of the present invention, the compressed gaseous fuel stored in the cylinder is regulated to a predetermined positive pressure by a regulator having a plurality of pressure reducing chambers, and the intake passage (3) of the mixer (30) is controlled.
In the air-fuel mixture supply device for injecting and supplying to the 2), the intake pressure near the fuel injection port (33) is introduced into the comparison chamber (15) side of the final pressure reducer (3) of the regulator (1), and the regulator (1) is also introduced. Electric actuator (46) for adjusting the passage area of the fuel passage (31) for introducing fuel from the fuel injection port (33) to the fuel injection port (33), and a throttle opening degree for detecting the opening degree of the throttle valve (35) of the intake passage (32) Detection means (4
5) and an electric system for operating the electric actuator (46) so as to provide a fuel passage area proportional to the opening of the throttle valve (35) based on the signal from the throttle opening detecting means (45). It is characterized by having done.
【０００９】[0009]
【作用】請求項１の発明では、燃料制御弁（３４）がス
ロットル弁（３５）に連動して、両弁の開度がほぼ同じ
開度となる。又、請求項２の発明では、スロットル開度
検出手段（４５）の信号に基いて、電気系が電気アクチ
ュエータ（４６）を操作して、スロットル弁（３５）の
開度に比例した燃料通路面積を与える。In the first aspect of the invention, the fuel control valve (34) is interlocked with the throttle valve (35) so that the openings of both valves are substantially the same. Further, according to the invention of claim 2, the electric system operates the electric actuator (46) based on the signal of the throttle opening detecting means (45) to make the fuel passage area proportional to the opening of the throttle valve (35). give.
【００１０】このようにして、請求項１，２の両発明と
も、燃料通路面積がスロットル弁（３５）の開度と比例
する。そして、レギュレータ（１）の最終減圧器（３）
の比較室（１５）には吸気通路の燃料噴射口（３３）付
近の吸気圧力が導入されているので、燃料圧力はこの吸
気圧力に応じた所定の正圧力に調圧される。その結果吸
入空気量に比例した燃料流量が供給され、吸入空気量が
変っても空燃比は一定に保たれる。Thus, in both the first and second aspects of the invention, the fuel passage area is proportional to the opening of the throttle valve (35). And the final pressure reducer (3) of the regulator (1)
Since the intake pressure in the vicinity of the fuel injection port (33) of the intake passage is introduced into the comparison chamber (15), the fuel pressure is adjusted to a predetermined positive pressure according to the intake pressure. As a result, the fuel flow rate is supplied in proportion to the intake air amount, and the air-fuel ratio is kept constant even if the intake air amount changes.
【００１１】又、スロットル弁（３５）の開度と燃料通
路面積が比例するので、異なる仕様のエンジンへの適合
が簡単にできる。Further, since the opening degree of the throttle valve (35) and the fuel passage area are proportional to each other, it is possible to easily adapt to engines having different specifications.
【００１２】[0012]
【実施例】図１（ａ）（ｂ）（ｃ）は本発明の第１実施
例で請求項１に対応する。図示されてないボンベに蓄え
られた圧縮気体燃料は、同図（ｃ）のレギュレータ１へ
矢印Ｇ1 で示すように導入され、所定の正圧力に調圧
（減圧）されて、矢印Ｇ2 で示すように同図（ｂ）
（ｃ）に示すミキサ３０の燃料通路３１へ（図示されて
ない配管により）導かれる。1 (a), 1 (b) and 1 (c) show a first embodiment of the present invention and correspond to claim 1. The compressed gaseous fuel stored in a cylinder (not shown) is introduced into the regulator 1 of FIG. 1C as indicated by an arrow G 1 , and is regulated (decompressed) to a predetermined positive pressure, and indicated by an arrow G 2 . As shown in the figure (b)
It is guided (by a pipe not shown) to the fuel passage 31 of the mixer 30 shown in (c).
【００１３】図１（ｃ）に示すレギュレータ１は第１段
目の減圧器２と第２段目（この場合最終段）の減圧器３
とで構成されている。第１段目の減圧器２は、減圧室４
と、大気に連通した大気圧室５と、両室４，５の間に設
けたダイアフラム６と、ダイアフラム６を図示左方に付
勢するスプリング７と、該スプリング７の力を調節して
第１段目の減圧器２の設定圧を調整する調圧スクリュ８
と、ダイアフラム６に連動して揺動するレバー９と、レ
バー９の一端に連動するバルブ１０と、レギュレータ本
体１１に設けたバルブシート１２とからなる。１３はボ
ンベからの燃料入口である。The regulator 1 shown in FIG. 1 (c) comprises a first stage pressure reducer 2 and a second stage (final stage in this case) pressure reducer 3.
It consists of and. The first-stage decompressor 2 includes a decompression chamber 4
An atmospheric pressure chamber 5 communicating with the atmosphere, a diaphragm 6 provided between the chambers 4 and 5, a spring 7 for biasing the diaphragm 6 to the left in the figure, and a force of the spring 7 for adjusting the first force. Pressure adjusting screw 8 for adjusting the set pressure of the first-stage pressure reducer 2
And a valve 9 that interlocks with the diaphragm 6, a valve 10 that interlocks with one end of the lever 9, and a valve seat 12 provided in the regulator body 11. 13 is a fuel inlet from the cylinder.
【００１４】第２段目の減圧器３は、減圧室１４と、前
記ミキサ３０の吸気負圧を矢印Ｂのように導入した比較
室１５と、両室１４，１５の間に設けたダイアフラム１
６と、ダイアフラム１６を図示右方へ付勢するスプリン
グ１７と、該スプリング１７の力を調節して第２段目
（この場合最終段）の減圧器３の設定圧を調整する調圧
スクリュー１８と、ダイアフラム１６に連動して揺動す
るレバー１９と、レバー１９の一端に連動するバルブ２
０と、レギュレータ本体１１に設けたバルブシート２１
とからなる。２３は減圧されて所定の正圧力に調圧され
た燃料の出口である。The second-stage decompressor 3 includes a decompression chamber 14, a comparison chamber 15 into which a negative intake pressure of the mixer 30 is introduced as shown by an arrow B, and a diaphragm 1 provided between the chambers 14 and 15.
6, a spring 17 for urging the diaphragm 16 to the right in the drawing, and a pressure adjusting screw 18 for adjusting the force of the spring 17 to adjust the set pressure of the pressure reducer 3 of the second stage (the last stage in this case). And a lever 19 that swings in conjunction with the diaphragm 16, and a valve 2 that interlocks with one end of the lever 19.
0 and the valve seat 21 provided on the regulator body 11
Consists of. Reference numeral 23 is an outlet for the fuel that has been decompressed and adjusted to a predetermined positive pressure.
【００１５】図１（ａ）（ｂ）に示すミキサ３０は、吸
気通路３２と、該吸気通路３２の上流部にその下流端の
燃料噴射口３３が開口する燃料通路３１と、該燃料通路
３１に設けられて、燃料通路３１の通路面積を変える燃
料制御弁３４と、吸気通路３２の下流部に設けたスロッ
トル弁３５等からなる。The mixer 30 shown in FIGS. 1 (a) and 1 (b) has an intake passage 32, a fuel passage 31 having a fuel injection port 33 at its downstream end opened upstream of the intake passage 32, and the fuel passage 31. And a throttle valve 35 provided in the downstream portion of the intake passage 32, and the like.
【００１６】４８は吸気負圧取出ポートで、燃料噴射口
３３付近の吸気圧力を取出して、図示されてない配管を
通じて前記レギュレータ１の比較室１５へ導入する。な
お、従来の技術では図１（ｃ）のレギュレータは、比較
室１５に大気圧が導入されていて、第２段目の減圧器３
の設定圧が図示の第１実施例と異なるが、構造的にはほ
ぼ同じであるため、本発明の実施例におけるレギュレー
タの詳しい動作の説明は省略するが、入口１３に導入さ
れた高圧燃料は先ず第１段目の減圧器２で減圧気化さ
れ、更に第２段目の減圧器３で比較室１５に導入された
吸気圧力とスプリング１７の付勢力とに応じた正圧力に
減圧される。こうして減圧された燃料は出口２３から矢
印Ｇ2 で示すように、ミキサ３０の燃料通路３１へ導入
される。Reference numeral 48 denotes an intake negative pressure extraction port for extracting intake pressure near the fuel injection port 33 and introducing it into the comparison chamber 15 of the regulator 1 through a pipe (not shown). In the conventional technique, in the regulator of FIG. 1C, the atmospheric pressure is introduced into the comparison chamber 15, and the pressure reducer 3 of the second stage is used.
Although the set pressure of is different from that of the first embodiment shown in the figure, since it is structurally almost the same, detailed explanation of the operation of the regulator in the embodiment of the present invention is omitted, but the high pressure fuel introduced into the inlet 13 is First, the first stage decompressor 2 depressurizes and vaporizes, and further the second stage decompressor 3 reduces the pressure to a positive pressure according to the intake pressure introduced into the comparison chamber 15 and the biasing force of the spring 17. The fuel thus depressurized is introduced from the outlet 23 into the fuel passage 31 of the mixer 30 as shown by an arrow G 2 .
【００１７】再度、図１（ａ）（ｂ）において、スロッ
トル弁３５はスロットル軸３６に取付けられ、該スロッ
トル軸３６の一端にはレバー３７が結合されている。こ
のレバー３７の可動端には図示されてないアクセルペダ
ルに連結されたアクセルワイヤが連結され、アクセルペ
ダルの踏み込み量つまりアクセル開度に応じてレバー３
７の可動端を矢印ＡＣ方向に移動させる。1 (a) and 1 (b), the throttle valve 35 is attached to a throttle shaft 36, and a lever 37 is connected to one end of the throttle shaft 36. An accelerator wire (not shown) connected to an accelerator pedal is connected to the movable end of the lever 37, and the lever 3 is connected according to the depression amount of the accelerator pedal, that is, the accelerator opening degree.
The movable end of 7 is moved in the direction of arrow AC.
【００１８】３８はスプリングで、スロットル弁３５を
閉じる方向に常時レバー３７を付勢している。３９は燃
料制御弁３４を取付けた軸で、その一端にはレバー４０
が結合されている。４１はスプリングで、燃料制御弁３
４を閉じる方向に常時レバー４０を付勢している。４２
はレバー３７と４０とを連結するリンクで、燃料制御弁
３４の開度（角度）がスロットル弁３５の開度（角度）
とほぼ同じになるように両レバー３７と４０のレバー比
が定められ、スロットル弁３５に連動して燃料制御弁３
４が動く。Reference numeral 38 denotes a spring, which constantly urges the lever 37 in the direction of closing the throttle valve 35. 39 is a shaft to which the fuel control valve 34 is attached, and a lever 40 is provided at one end thereof.
Are combined. 41 is a spring, which is the fuel control valve 3
The lever 40 is constantly urged in the direction of closing 4. 42
Is a link connecting the levers 37 and 40, and the opening (angle) of the fuel control valve 34 is the opening (angle) of the throttle valve 35.
The lever ratio of both levers 37 and 40 is set so as to be substantially the same as that of the fuel control valve 3 in conjunction with the throttle valve 35.
4 moves.
【００１９】４３はストッパで、レバー３７の一端がこ
のストッパに当接することでスロットル弁３５の全閉位
置を定める。４４は別のストッパで、レバー４０の端が
このストッパに当接することで、燃料制御弁３４の全閉
位置を定める。Reference numeral 43 denotes a stopper, and one end of the lever 37 abuts on this stopper to determine the fully closed position of the throttle valve 35. Reference numeral 44 denotes another stopper, and the end of the lever 40 abuts on this stopper to determine the fully closed position of the fuel control valve 34.
【００２０】上記第１の実施例で、アクセル開度に応じ
てスロットル弁３５が開くと、スロットル弁３５の開度
に比例した開度に燃料制御弁３４が開く。そして、レギ
ュレータ１の最終段の減圧室では、比較室１５に導入さ
れた吸気圧取出ポート４８の吸気圧とスプリング１７と
で定まる所定の正圧力に燃料が減圧されて燃料通路３１
へ供給される。In the first embodiment, when the throttle valve 35 is opened according to the accelerator opening, the fuel control valve 34 is opened to an opening proportional to the opening of the throttle valve 35. Then, in the final depressurization chamber of the regulator 1, the fuel is depressurized to a predetermined positive pressure determined by the intake pressure of the intake pressure extraction port 48 introduced into the comparison chamber 15 and the spring 17, and the fuel passage 31
Is supplied to.
【００２１】そのため、吸気空気量に対して燃料流量が
比例して変化し、図３の直線ａの関係となる。因みに、
比較室１５へ大気圧を導入した従来技術では、曲線ｂの
関係となり、吸入空気量に応じて燃料流量が２次関数的
に増大する。その結果吸入空気量が変化しても本発明で
は図４の直線ａに示すように混合気の空燃比が一定に保
たれ、従来技術では同図の直線ｂに示すように、吸入空
気量に応じて空燃比が変る。Therefore, the fuel flow rate changes in proportion to the intake air amount, and the relationship shown by the straight line a in FIG. By the way,
In the conventional technique in which the atmospheric pressure is introduced into the comparison chamber 15, the relationship of the curve b is established, and the fuel flow rate increases quadratically according to the intake air amount. As a result, even if the intake air amount changes, in the present invention, the air-fuel ratio of the air-fuel mixture is kept constant as shown by the straight line a in FIG. The air-fuel ratio changes accordingly.
【００２２】図２（ａ）（ｂ）は本発明の第２実施例
で、請求項２に対応する。この第２実施例で、前記第１
実施例と同一の機能を果す部品は同じ参照符号を付し
て、その説明を省略する。2A and 2B show a second embodiment of the present invention and correspond to claim 2. In the second embodiment, the first
Parts having the same functions as those of the embodiment are designated by the same reference numerals, and the description thereof will be omitted.
【００２３】前記第１実施例では、レバー３７と４０と
がリンク４２で連結され、スロットル弁３５に連動して
燃料制御弁３４が開閉する構造であったが、図２（ａ）
（ｂ）の第２実施例では、スロットル弁３５のスロット
ル軸３６の他端（後端）に結合されてスロットル弁３５
の開度を検出するスロットル開度検出手段４５の電気信
号に基いて、軸３９の他端（後端）にその回転軸が連結
された電気アクチュエータ（例えばモータ）４６が電気
的に操作されて、スロットル弁３５の開度に比例した燃
料通路面積になるように燃料制御弁３４を動かす。In the first embodiment, the levers 37 and 40 are connected by the link 42, and the fuel control valve 34 is opened and closed in conjunction with the throttle valve 35.
In the second embodiment (b), the throttle valve 35 is connected to the other end (rear end) of the throttle shaft 36 of the throttle valve 35.
An electric actuator (for example, a motor) 46, whose rotary shaft is connected to the other end (rear end) of the shaft 39, is electrically operated based on an electric signal from a throttle opening detection means 45 for detecting the opening of the shaft 39. The fuel control valve 34 is moved so that the fuel passage area is proportional to the opening degree of the throttle valve 35.
【００２４】なお、この第２実施例でボンベからの燃料
が、複数段の減圧室を持つレギュレータ１で、吸気負圧
取出ポート４８からの負圧と前記スプリング１７とで設
定された所定の正圧力に減圧されてミキサ３０の燃料通
路３１の入口へ矢印Ｇ2 のように導入される点は前記第
１実施例と同じである。In the second embodiment, the fuel from the cylinder is a predetermined positive pressure set by the negative pressure from the intake negative pressure extraction port 48 and the spring 17 in the regulator 1 having a plurality of pressure reducing chambers. As in the first embodiment, the pressure is reduced and the fuel is introduced into the inlet of the fuel passage 31 of the mixer 30 as indicated by arrow G 2 .
【００２５】そして、スロットル開度検出手段４５の信
号に基いて、スロットル弁３５の開度に比例した燃料通
路面積を与えるように電気アクチュエータ４６を操作す
るには、マイクロコンピュータを用いたコントローラ、
又はマイクロコンピュータによらないで簡単な制御回路
を用いることができる。In order to operate the electric actuator 46 so as to give a fuel passage area proportional to the opening degree of the throttle valve 35 based on the signal from the throttle opening degree detecting means 45, a controller using a microcomputer,
Alternatively, a simple control circuit can be used without using a microcomputer.
【００２６】なお、図２（ｂ）で符号４７で示すのは、
燃料制御弁３４の全開位置を定める全開ストッパであ
る。上記第２実施例は、いわばスロットル弁３５と燃料
制御弁３４とが電気的に連動して両弁３５と３４の開度
が比例するので、吸入空気量に対する燃料流量と空燃比
は第１実施例の場合と同じで、図３、図４の各直線ａで
示され、空燃比が一定に保たれる。The reference numeral 47 in FIG. 2B indicates that
This is a full-open stopper that determines the full-open position of the fuel control valve 34. In the second embodiment, the throttle valve 35 and the fuel control valve 34 are electrically linked so that the openings of the valves 35 and 34 are proportional to each other, so that the fuel flow rate and the air-fuel ratio with respect to the intake air amount are the same as those of the first embodiment. As in the case of the example, the air-fuel ratio is kept constant as indicated by the straight lines a in FIGS. 3 and 4.
【００２７】 [0027]
【発明の効果】本発明における気体燃料機関の混合気供
給装置は上述のように構成されているので、吸気通路圧
即ち吸気負圧取出ポート（４８）と燃料圧力との差圧を
一定に保つことができるため、吸入空気量に関係なく空
燃比が一定となる。Since the air-fuel mixture supply device for a gas fuel engine according to the present invention is constructed as described above, the intake passage pressure, that is, the differential pressure between the intake negative pressure extraction port (48) and the fuel pressure is kept constant. Therefore, the air-fuel ratio becomes constant regardless of the intake air amount.
【００２８】又、スロットル弁の開度と燃料通路面積と
が比例するので、エンジン適合が簡単でコスト低減に貢
献する。Further, since the opening of the throttle valve and the fuel passage area are proportional to each other, it is easy to adapt the engine and contribute to cost reduction.
【図１】本発明の第１実施例で、（ａ）はミキサの縦断
面図、（ｂ）はミキサの正面図、（ｃ）はレギュレータ
の縦断面図である。FIG. 1 is a first embodiment of the present invention, (a) is a vertical sectional view of a mixer, (b) is a front view of the mixer, and (c) is a vertical sectional view of a regulator.
【図２】本発明の第２実施例で、（ａ）はミキサの縦断
面図、（ｂ）はミキサの正面図である。2A is a vertical sectional view of a mixer, and FIG. 2B is a front view of the mixer according to a second embodiment of the present invention.
【図３】吸入空気量対燃料流量線図である。FIG. 3 is a diagram of intake air amount versus fuel flow rate.
【図４】吸入空気量対空燃比線図である。FIG. 4 is a diagram of an intake air amount versus an air-fuel ratio line.
１ レギュレータ ３ 最終減圧器（第２段目の減圧器） １５ 比較室 ３０ ミキサ ３１ 燃料通路 ３２ 吸気通路 ３３ 燃料噴射口 ３４ 燃料制御弁 ３５ スロットル弁 ４５ スロットル開度検出手段 ４６ 電気アクチュエータ 1 Regulator 3 Final Pressure Reducer (Second Stage Pressure Reducer) 15 Comparison Chamber 30 Mixer 31 Fuel Passage 32 Intake Passage 33 Fuel Injection Port 34 Fuel Control Valve 35 Throttle Valve 45 Throttle Opening Detecting Means 46 Electric Actuator
Claims (2)
の減圧室を持つレギュレータにより所定の正圧力に調圧
して、ミキサの吸気通路に噴射供給する混合気供給装置
において、 燃料噴射口付近の吸気圧力をレギュレータの最終減圧器
の比較室側へ導入すると共に、レギュレータから燃料噴
射口へ燃料を導入する燃料通路に燃料制御弁を設けて該
燃料制御弁を吸気通路に設けたスロットル弁に連動さ
せ、両弁がほぼ同じ開度となるように構成したことを特
徴とする気体燃料機関の混合気供給装置。1. A fuel-air mixture supply device, in which a compressed gas fuel provided in a cylinder is regulated to a predetermined positive pressure by a regulator having a plurality of decompression chambers and is injected into an intake passage of a mixer, near a fuel injection port. The intake pressure of the regulator is introduced to the comparison chamber side of the final pressure reducer of the regulator, and a fuel control valve is provided in the fuel passage for introducing fuel from the regulator to the fuel injection port, and the fuel control valve is used as a throttle valve provided in the intake passage. An air-fuel mixture supply device for a gas fuel engine, characterized in that both valves are configured to be interlocked with each other to have substantially the same opening.
の減圧室を持つレギュレータにより所定の正圧力に調圧
して、ミキサの吸気通路に噴射供給する混合気供給装置
において、 燃料噴射口付近の吸気圧力をレギュレータの最終減圧器
の比較室側へ導入すると共に、レギュレータから燃料噴
射口へ燃料を導入する燃料通路の通路面積を加減する電
気アクチュエータと、吸気通路のスロットル弁の開度を
検出するスロットル開度検出手段と、該スロットル開度
検出手段の信号に基いてスロットル弁の開度に比例した
燃料通路面積を与えるように前記電気アクチュエータを
操作する電気系とを具備したことを特徴とする気体燃料
機関の混合気供給装置。2. A mixed gas supply device, which regulates a pressure of a compressed gas fuel provided in a cylinder to a predetermined positive pressure by a regulator having a plurality of stages of decompression chambers and supplies the mixture to an intake passage of a mixer, in the vicinity of a fuel injection port. The intake pressure of the regulator is introduced to the comparison chamber side of the final pressure reducer of the regulator, and the electric actuator that adjusts the passage area of the fuel passage that introduces fuel from the regulator to the fuel injection port and the opening degree of the throttle valve of the intake passage are detected. And an electric system for operating the electric actuator so as to provide a fuel passage area proportional to the opening of the throttle valve based on a signal from the throttle opening detection means. Gas mixture supply device for a gas fuel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22078093A JPH0777109A (en) | 1993-09-06 | 1993-09-06 | Mixture feeder of gas fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22078093A JPH0777109A (en) | 1993-09-06 | 1993-09-06 | Mixture feeder of gas fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0777109A true JPH0777109A (en) | 1995-03-20 |
Family
ID=16756456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22078093A Pending JPH0777109A (en) | 1993-09-06 | 1993-09-06 | Mixture feeder of gas fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0777109A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072047A (en) * | 2011-02-21 | 2011-05-25 | 隆鑫通用动力股份有限公司 | Gas mixing control device |
| CN102434324A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Pressure reduction and pressure stabilization mechanism of integral fuel injector assembly |
| CN102434322A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Integrated gas injector assembly |
| CN102434321A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Integrated gas injector assembly |
-
1993
- 1993-09-06 JP JP22078093A patent/JPH0777109A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434324A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Pressure reduction and pressure stabilization mechanism of integral fuel injector assembly |
| CN102434322A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Integrated gas injector assembly |
| CN102434321A (en) * | 2010-09-29 | 2012-05-02 | 戴长春 | Integrated gas injector assembly |
| CN102072047A (en) * | 2011-02-21 | 2011-05-25 | 隆鑫通用动力股份有限公司 | Gas mixing control device |
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