JPS6053652A - Fuel supply device of lpg internal-combustion engine - Google Patents
Fuel supply device of lpg internal-combustion engineInfo
- Publication number
- JPS6053652A JPS6053652A JP58161512A JP16151283A JPS6053652A JP S6053652 A JPS6053652 A JP S6053652A JP 58161512 A JP58161512 A JP 58161512A JP 16151283 A JP16151283 A JP 16151283A JP S6053652 A JPS6053652 A JP S6053652A
- Authority
- JP
- Japan
- Prior art keywords
- fuel passage
- valve
- fuel
- starting
- starting fuel
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/021—Control of components of the fuel supply system
- F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0233—Details of actuators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
- F02M21/047—Venturi mixer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
【発明の詳細な説明】 イ、産業上の利用分野 本発明はＬＰＧ内燃機関の燃料供給装置に関する。[Detailed description of the invention] B. Industrial application field The present invention relates to a fuel supply system for an LPG internal combustion engine.
口、従来技術
従来、ＬＰＧ内燃機関の始動用燃料供給装置として第１
図及び第２図に示すようなものがある。Prior Art Conventionally, the first fuel supply device for starting an LPG internal combustion engine has been used.
There are some as shown in Fig. 2 and Fig. 2.
この従来装置について説明する。 ＬＰＧレギュレータ
＋１１の燃料入口通路（２）より流入した燃料は、第２
図に示すＬＰＧレギュレータ（１）の−人減圧室（３）
に−次ハルブ（４）を介して流入して減圧され、更に二
次バルブ（５）を通って二次減圧室（６）に流入して減
圧され、そしてメイン燃料通路（７）を通って、メイン
燃料制御スクリュ（８）により調量され、ベンチュリ（
９）の吐出口（１０）よりメイン燃料として供給される
。 また、スロー用燃料は、−人減圧室（３）より分岐
された通路（１１）より、スローロック弁（１２）を通
ってアイドルアジャストスクリュ（１３）で調量され、
スロー燃料通路（１４）より前記メイン燃料通路（７）
に導入されて吐出口（１０）より供給される。 該スロ
ーロック弁（１２）のダイアフラム室（１２ａ ）には
、混合器（１５）における吸気絞り弁（１６）の下流部
の吸気筒に連通ずる負圧通路（１７）が連通されており
、吸気絞り弁（１６）の閉状態により発生する負圧によ
ってスローロック弁（１２）が開くようになっている。This conventional device will be explained. The fuel flowing from the fuel inlet passage (2) of LPG regulator +11 is
-Person decompression chamber (3) of LPG regulator (1) shown in the figure
- through the secondary valve (4) to be depressurized, further through the secondary valve (5) to the secondary decompression chamber (6) to be depressurized, and then through the main fuel passage (7). , metered by the main fuel control screw (8) and venturi (
9) is supplied as the main fuel from the discharge port (10). Further, the slow fuel is metered by an idle adjustment screw (13) from a passage (11) branched from the decompression chamber (3), through a slow lock valve (12),
The main fuel passage (7) from the slow fuel passage (14)
and is supplied from the discharge port (10). The diaphragm chamber (12a) of the slow lock valve (12) is connected to a negative pressure passage (17) that communicates with the intake cylinder downstream of the intake throttle valve (16) in the mixer (15), and The slow lock valve (12) is opened by the negative pressure generated by the closed state of the throttle valve (16).
（１８）は始動用燃料通路で、前記メイン燃料通路（
７）より分岐され、電磁弁（１９）を通って吸気絞り弁
（１６）の上流に設けた始動用燃料ボー） （２０）に
連通している。 該ポートは吸気絞り弁（１６）の下流
に（２１）の如く設けてもよい。 前記電磁弁（１９）
はスタータモータ（２２）の駆動時に開口するように設
定されている。 このような従来装置において、機関を
始動するには、スローロック弁（１２）を開いて、始動
用燃料をスロー燃料通路（１４） 、メイン燃料通路（
７）、始動用燃料通路（１Ｂ） 、電磁弁（１９）を介
して始動用燃料ボート（２０）又は（２１）より吐出さ
せることから、スローロック弁（１２）を開口できるだ
けの負圧力が必要となり、そのためには吸気絞り弁（１
６）を閉じた状態で始動しなければならない。 そのた
め、「始動時には吸気絞り弁を閉じて下さい」との制限
を運転者に強いていた。 しかし、吸気絞り弁を閉じて
初爆が行なわれた直後には、メイン燃料を供給して完爆
させる必要から、初爆後直ちに吸気絞り弁（１６）を適
度に開口しなければならない。 そのため、運転者は始
動時のアクセルペタル操作を注意深く行なわなければな
らず、その操作を誤ると初爆や完爆に至らず始動できな
い不便があった。 尚、この従来装置の一例として特公
昭５６−１０６０４７号公報がある。(18) is a starting fuel passage, which is the main fuel passage (
7), and communicates through a solenoid valve (19) with a starting fuel bow (20) provided upstream of the intake throttle valve (16). The port may be provided downstream of the intake throttle valve (16) as shown in (21). The solenoid valve (19)
is set to open when the starter motor (22) is driven. In such a conventional device, to start the engine, the slow lock valve (12) is opened and starting fuel is passed through the slow fuel passage (14) and the main fuel passage (
7) Since the starting fuel passage (1B) is discharged from the starting fuel boat (20) or (21) via the solenoid valve (19), negative pressure sufficient to open the slow lock valve (12) is required. Therefore, the intake throttle valve (1
6) Must be started with the door closed. As a result, the driver is required to close the intake throttle valve when starting the engine. However, immediately after the intake throttle valve is closed and the first explosion is performed, it is necessary to supply the main fuel for complete explosion, so the intake throttle valve (16) must be appropriately opened immediately after the first explosion. Therefore, the driver had to operate the accelerator pedal carefully when starting the engine, and if the operator made a mistake, there was an inconvenience that the engine could not be started due to the initial or complete explosion. Incidentally, as an example of this conventional device, there is Japanese Patent Publication No. 56-106047.
ハ０発明の目的
本発明は前記に鑑み、前記従来のスロー燃料通路とは別
に、ＬＰＧレギュレτりの一次室より始動用燃料通路を
設け、該通路を、吸気絞り弁が開いた場合にその開度に
見合った燃料が流れるように開口するようにして、始動
時に吸気絞り弁が閉じていても開いていても初爆を確実
に行なうと共にその完爆も確実に行なわれるようにして
、前記従来のような運転者に対する始動時の制限の強要
やアクセル操作の困難性を無くし始動を容易にすること
を目的とするものである。In view of the above, the present invention provides a starting fuel passage from the primary chamber of LPG regulation τ, separately from the conventional slow fuel passage, and connects the passage to the starting fuel passage when the intake throttle valve opens. The opening is opened so that fuel flows in proportion to the degree of opening, so that the initial explosion is ensured and the complete explosion is also ensured whether the intake throttle valve is closed or open at the time of starting. The purpose of this is to make starting easier by eliminating the conventional restrictions imposed on the driver during starting and the difficulty in operating the accelerator.
二０発明の構成
本発明は前記の目的を達成するために、スロー燃料系統
とは別にＬＰＧレギュレータの一次減圧室より吸気筒へ
連通した始動用燃料通路と、該始動用燃料通路を開閉す
る弁と、スクータモータが駆動され、かつ吸気絞り弁が
、所定開度以上間いた場合にのみ前記始動用燃料通路を
開状態に前記弁を制御する弁制御機構を設けたことを特
徴とするものである。20 Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a starting fuel passage that communicates from the primary decompression chamber of the LPG regulator to the intake cylinder separately from the slow fuel system, and a valve that opens and closes the starting fuel passage. and a valve control mechanism that controls the valve to open the starting fuel passage only when the scooter motor is driven and the intake throttle valve is opened for a predetermined opening or more. be.
ホ、実施例
次に第３図及び第４図に示す本発明の実施例について説
明する。 本実施例は、前記第１図及び第２図に示す従
来構造のうちの始動用燃料通路（１８）、電磁弁（１９
） 、始動用燃料ボート（２０）をなくして以下のよう
な構造を付加したもので、その他の構造は前記従来構造
と同様である。 本実施例のＬＰＧレギュレータ（１１
の一次減圧室（２〕には、第４図に示す如く、始動用燃
料通路（２３）が設けられている。 該始動用燃料通路
（２３）は第３図に示す如く、ステッパモータにより流
量を制御する流量制御弁（２４）を介してメイン燃料通
路（７）に連通されている。 （２５）は制御回路で、
スタータモータ（２２）のオン作動により流量制御弁（
２４）を開操作し、オフ作動により流量制御弁（２４）
を閉操作するように信号を送る機構と、吸気絞り弁（１
６）の開度量を感知するスロットルセンサ（２６）より
の信号を受けて流量制御弁（２４）を吸気絞り弁（１６
）の開度に比例した量だけ開口するように信号を送る機
構が内蔵されている。 この制御回路のフローチャート
を第７図に示す。E. Example Next, an example of the present invention shown in FIGS. 3 and 4 will be described. This embodiment has a starting fuel passage (18) and a solenoid valve (19) of the conventional structure shown in FIGS. 1 and 2.
), the starting fuel boat (20) is eliminated and the following structure is added, and the other structure is the same as the conventional structure. LPG regulator (11) of this example
The primary decompression chamber (2) is provided with a starting fuel passage (23) as shown in Fig. 4. The starting fuel passage (23) is controlled by a stepper motor as shown in Fig. 3. It communicates with the main fuel passage (7) via a flow control valve (24) that controls the flow rate. (25) is a control circuit,
The flow control valve (
Flow control valve (24) by opening the valve (24) and turning it off.
A mechanism that sends a signal to close the intake throttle valve (1
6) receives a signal from the throttle sensor (26) that detects the amount of opening of the intake throttle valve (16).
) has a built-in mechanism that sends a signal to open by an amount proportional to the degree of opening. A flowchart of this control circuit is shown in FIG.
へ０作用
内燃機関を始動するためにスタータモータ（２２）をオ
ンにして駆動すると、機関が回転されると同時に始動用
燃料通路（２３）の流量制御弁（２４）に開の信号が送
られる。 このとき、少気絞り弁（１６）が全閉状態に
あると前記信号にか−わらず、スロットルセンサ（２６
）からの全閉信号に基づく制御回路（２５）からの信号
により流量制御弁（２４）は閉じられる。 しかし、吸
気絞り弁（１６）が全閉であるため、その下流には高負
圧が生じ、この高負圧が負圧通路（１７）を通ってスロ
ーロック弁（１２）に作用し、該弁（１２）を開くので
、スロー燃料通路（１４）からはスロー燃料が、始動用
燃料として流出し、吐出口（１０）より供給されて初爆
が行なわれる。 また、吸気絞り弁（１６）が所定開度
以上に開かれていると、その下流の負圧は小さくなって
スローロック弁（１２）が開かなくなリ、スロー燃料通
路（１４）より燃料が流出しなくなるが、この吸気絞り
弁（１６）の開き量に応じたスロットルセンサ（２６）
からの信号に基づき制御回路（２５）からは流量制御弁
（２４）に開きの信号が送られ、流量制御弁（２４）は
吸気絞り弁（１６）の開度量に応じた量だけ開口する。When the starter motor (22) is turned on and driven to start the internal combustion engine, an open signal is sent to the flow rate control valve (24) of the starting fuel passage (23) at the same time as the engine is rotated. . At this time, if the low air throttle valve (16) is fully closed, the throttle sensor (26)
) The flow control valve (24) is closed by a signal from the control circuit (25) based on the fully closed signal from the control circuit (25). However, since the intake throttle valve (16) is fully closed, high negative pressure is generated downstream, and this high negative pressure passes through the negative pressure passage (17) and acts on the slow lock valve (12). Since the valve (12) is opened, slow fuel flows out from the slow fuel passage (14) as starting fuel and is supplied from the discharge port (10) to perform the initial explosion. Furthermore, if the intake throttle valve (16) is opened to a predetermined opening degree or more, the negative pressure downstream thereof becomes small and the slow lock valve (12) no longer opens, causing fuel to flow from the slow fuel passage (14). The throttle sensor (26) corresponds to the opening amount of this intake throttle valve (16).
Based on the signal from the control circuit (25), an opening signal is sent to the flow control valve (24), and the flow control valve (24) opens by an amount corresponding to the opening amount of the intake throttle valve (16).
そのため、始動時に吸気絞り弁（１６）が開いていて
も、始動用燃料が始動用燃料通路（２３） 、メイン燃
料通路（７）を通じて吐出口（１０）より供給され、確
実な初爆が行なわれる。 また、吸気絞り弁（１６）を
全閉して初爆させた直後に吸気絞り弁（１６）を開いて
も、この開き量に応して始動用燃料通路（２３）から燃
料が供給されるので完爆に至らせることができる。 尚
、前記従来構造と本発明の実施例との燃料流量特性を第
６図によって比較する。 第６図（Ａ）は従来構造によ
る始動用燃料ボート（２０）より流出する燃料流量特性
図、第６図（Ｂ）は従来構造によるスロー燃料通路（１
４）を流れる燃料流量特性図、第６図（Ｃ）は従来構造
による始動用燃料ボー） （２１）より流出する燃料流
量特性図、第６図（「・）は前記始動用燃料ボート（２
０）とスロー燃料通路（１４）の流量を合成した燃料流
量特性図、第６図（Ｅ）はスロー燃料通路（１４）と始
動用燃料ポー１− （２１）の流量を合成した燃料流量
特性図である。 これに対し本発明の実施例によると、
始動用燃料通路（２３）を流れる燃料流量特性は第６図
（Ｆ）の如くとなり、スロー燃料通路（１４）と始動用
燃料通路（２３）の流量を合成すると第６図（Ｇ）の如
くとなる。 この比較から分かるように、従来構造にお
いては吸気絞り弁（１６）の開きによって燃料流量が低
下するのに対して本発明によれば吸気絞り弁（１６）の
開度に比例して燃料流量が多くなり、前記のように初爆
と完爆が確実に行なわれることが分かる。Therefore, even if the intake throttle valve (16) is open at the time of starting, starting fuel is supplied from the discharge port (10) through the starting fuel passage (23) and the main fuel passage (7), ensuring a reliable initial explosion. It will be done. Furthermore, even if the intake throttle valve (16) is opened immediately after the intake throttle valve (16) is fully closed and the first explosion occurs, fuel is supplied from the starting fuel passage (23) according to the amount of opening. Therefore, it can be brought to a complete explosion. Incidentally, the fuel flow characteristics of the conventional structure and the embodiment of the present invention will be compared with reference to FIG. Fig. 6 (A) is a characteristic diagram of the fuel flow rate flowing out from the starting fuel boat (20) with the conventional structure, and Fig. 6 (B) is the slow fuel passage (1) with the conventional structure.
Figure 6 (C) is a characteristic diagram of the fuel flow rate flowing out from the starting fuel boat (21) of the conventional structure, and Figure 6 (') is a characteristic diagram of the fuel flow rate flowing out from the starting fuel boat (21) of the conventional structure.
Figure 6 (E) is a fuel flow characteristic diagram that combines the flow rates of the slow fuel passage (14) and the starting fuel port 1- (21). It is a diagram. In contrast, according to an embodiment of the present invention,
The fuel flow rate characteristics flowing through the starting fuel passage (23) are as shown in Figure 6 (F), and when the flow rates of the slow fuel passage (14) and the starting fuel passage (23) are combined, it is as shown in Figure 6 (G). becomes. As can be seen from this comparison, in the conventional structure, the fuel flow rate decreases due to the opening of the intake throttle valve (16), whereas in the present invention, the fuel flow rate decreases in proportion to the opening degree of the intake throttle valve (16). It can be seen that the number of explosions increases, and as mentioned above, the first explosion and the complete explosion are definitely carried out.
トロ化の実施例
第５図は本発明の他の実施例を示すもので、前記実施例
のステンバモータよりなる流量制御弁（２４）、制御回
路（２５） 、スロットルセンサ（２６）の代わりに、
始動用燃料通路（２３）に、スタータモータ（２２）の
駆動時のみに該通路（２３）を開く電磁弁（２７）と、
吸気絞り弁（１６）の開き量に比例して該通路（２３）
を開く流量制御弁（２８）を設けて始動燃料の供給機構
を構成したものである。FIG. 5 shows another embodiment of the present invention, in which the flow control valve (24), the control circuit (25), and the throttle sensor (26) made of the Stenba motor of the previous embodiment are replaced with the following:
a solenoid valve (27) in the starting fuel passage (23) that opens the passage (23) only when the starter motor (22) is driven;
The passage (23) is opened in proportion to the opening amount of the intake throttle valve (16).
A starting fuel supply mechanism is constructed by providing a flow rate control valve (28) that opens.
この実施例においても前記実施例と同様の効果が得られ
る。In this embodiment as well, the same effects as in the previous embodiment can be obtained.
ヂ０発明の効果
以上のように本発明によれば、機関始動時に、吸気絞り
弁を閉じていても開いていても初爆用の燃料及び完爆に
至らせるための燃料が得られるので、従来のような運転
者に対する始動時の制限の強制やアクセル操作の困難性
を無くし機関の始動を容易にすることができる特長があ
る。Effects of the Invention As described above, according to the present invention, when the engine is started, fuel for the initial explosion and fuel for the complete explosion can be obtained regardless of whether the intake throttle valve is closed or opened. It has the advantage of making it easier to start the engine without forcing the driver to impose restrictions on starting or making it difficult to operate the accelerator, as in the past.
第１図は従来構造を示す燃料系統図、第２図は従来のＬ
ＰＧレギュレータの断面図、第３図は本発明の実施例を
示す燃料系統図、第４図は本発明のＬＰＧレギュレータ
の断面図、第５図は他の実施例を示す燃料系統図、第６
図（Ａ）乃至（Ｅ）は従来構造の燃料流量特性図、（Ｆ
）、（Ｇ）は本発明の燃料流量特性図、第７図は制御回
路における制御のフローチャートを示す。
（１）・・・ＬＰＧレギュレータ
（３）・・・−人減圧室
（７）・・・メイン燃料通路
（１４）・・スロー燃料通路
（１５）・・混合器
（１６）・・吸気絞り弁
（２２）・・スタータモータ
（２３）・・始動用燃料通路
（２４）、（２８＞ ・・流量制御弁
（２５）・・制御回路
（２６）・・スロットルセンサ
（２７）・・電磁弁
特許出願人
愛三工業株式会社
代理人 ｌへ
三 宅 宏・（゛、。
７′６ＩFigure 1 is a fuel system diagram showing the conventional structure, Figure 2 is the conventional L
3 is a sectional view of a PG regulator; FIG. 3 is a fuel system diagram showing an embodiment of the present invention; FIG. 4 is a sectional view of an LPG regulator of the invention; FIG. 5 is a fuel system diagram showing another embodiment;
Figures (A) to (E) are fuel flow characteristic diagrams of the conventional structure;
) and (G) are fuel flow characteristic diagrams of the present invention, and FIG. 7 is a flowchart of control in the control circuit. (1)...LPG regulator (3)...-Person decompression chamber (7)...Main fuel passage (14)...Slow fuel passage (15)...Mixer (16)...Intake throttle valve (22)...Starter motor (23)...Fuel passage for starting (24), (28>...Flow rate control valve (25)...Control circuit (26)...Throttle sensor (27)...Solenoid valve patent Applicant Aisan Kogyo Co., Ltd. Agent: Hiroshi Miyake (゛,. 7'6I
Claims (1)
室より吸気筒へ連通した始動用燃料通路と、該始動用燃
料通路を開閉する弁と、スタータモータが駆動され、か
つ吸気絞り弁が、所定開度以上間いた場合にのみ前記始
動用燃料通路を開状態に前記弁を制御する弁制御機構を
設けたことを特徴とするＬＰＧ内燃機関の燃料供給装置
。Separately from the slow fuel system, there is a starting fuel passage that communicates with the intake cylinder from the primary decompression chamber of the LPG regulator, a valve that opens and closes the starting fuel passage, and a starter motor that is driven, and the intake throttle valve is opened to a predetermined opening degree. A fuel supply device for an LPG internal combustion engine, comprising a valve control mechanism that controls the valve to open the starting fuel passage only when the starting fuel passage is in an open state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58161512A JPS6053652A (en) | 1983-09-01 | 1983-09-01 | Fuel supply device of lpg internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58161512A JPS6053652A (en) | 1983-09-01 | 1983-09-01 | Fuel supply device of lpg internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6053652A true JPS6053652A (en) | 1985-03-27 |
Family
ID=15736467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58161512A Pending JPS6053652A (en) | 1983-09-01 | 1983-09-01 | Fuel supply device of lpg internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354436U (en) * | 1986-09-29 | 1988-04-12 | ||
| JPS63171690A (en) * | 1986-12-29 | 1988-07-15 | セイレイ工業株式会社 | Supply controller for cereal grain selector |
-
1983
- 1983-09-01 JP JP58161512A patent/JPS6053652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354436U (en) * | 1986-09-29 | 1988-04-12 | ||
| JPS63171690A (en) * | 1986-12-29 | 1988-07-15 | セイレイ工業株式会社 | Supply controller for cereal grain selector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5450832A (en) | Dual fuel system | |
| EP1040263B1 (en) | Method and apparatus for relieving a differential pressure across a gaseous fuel admission valve of a dual fuel engine | |
| US4453523A (en) | Pressure balanced flow regulator for gaseous fuel engine | |
| US4589397A (en) | Apparatus for adapting to gases of different calorific values in the supply of gas-air mixture to gas engines | |
| CA1145214A (en) | Fuel enrichment apparatus for gaseous fuel mixers | |
| JPS6053652A (en) | Fuel supply device of lpg internal-combustion engine | |
| WO2002031337A1 (en) | Mixer for gas fuel | |
| JPH02201051A (en) | Idling speed control device | |
| US3943899A (en) | Atmospheric pressure compensating means for an engine intake system | |
| JPS63111277A (en) | Purged flow control device for fuel vapor | |
| JPH0914057A (en) | Starting time fuel supplying device for gas engine | |
| KR20000003917U (en) | LPG fuel supply device for gasoline engine | |
| JP2868421B2 (en) | Mixture subchamber supply mechanism for subchamber gas engine | |
| EP1298310B1 (en) | Gas metering system | |
| JP3168524B2 (en) | Fuel supply system for gaseous fuel engine | |
| KR910008911B1 (en) | Air-fuel ratio control method for liquid gas | |
| JPS5917270B2 (en) | EGR/ignition timing control device | |
| JPH0392575A (en) | Control device for engine | |
| JPH07109944A (en) | Idling rotation controller of gas engine | |
| JPS63129137A (en) | Engine brake action mechanism for gas fuel engine | |
| JPS58206841A (en) | Starting device for lpg engine | |
| JPH07189812A (en) | Starting aid for gas fuel engine | |
| JP2000130264A (en) | Compound mixer for gas fuel | |
| WO1998021463A1 (en) | Gaseous fuel supply control and fuel vaporiser | |
| JPH0586985A (en) | Fuel control device for lpg internal combustion engine |