JPS60222550A - Fuel feeding device for lpg internal-combustion engine - Google Patents
Fuel feeding device for lpg internal-combustion engineInfo
- Publication number
- JPS60222550A JPS60222550A JP59078542A JP7854284A JPS60222550A JP S60222550 A JPS60222550 A JP S60222550A JP 59078542 A JP59078542 A JP 59078542A JP 7854284 A JP7854284 A JP 7854284A JP S60222550 A JPS60222550 A JP S60222550A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- valve
- pressure
- pump
- combustion engine
- 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.)
- Granted
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
- F02M21/0236—Multi-way valves; Multiple valves forming a multi-way valve system
-
- 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
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
-
- 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
- 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
-
- 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】
〔発明の利用分野〕
本発明は液化石油ガス(以下LPGと称す)内燃機関の
燃料供給装置に係シ、特に燃料を液体状で計量、噴射す
るLPG内燃機関の、燃料供給装置に関する。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a fuel supply system for a liquefied petroleum gas (hereinafter referred to as LPG) internal combustion engine, and particularly for an LPG internal combustion engine that measures and injects fuel in liquid form. Regarding a fuel supply device.
自動車用内燃機関の燃料として使用されるLPGの飽和
蒸気圧は、その燃料組成と周囲温匿によシ最大0〜20
Kf/cr711通常2〜7に9/Cdと大きく変化す
る。自動車用燃料としてボンベなどに貯えられ7’(L
P、Gは前記飽和蒸気圧により圧送することができる
。このため従来のベーパライザ・ミキサーを備えた燃料
供給システムでは燃料ポンプを必要としなかった。しか
し燃料噴射弁を備えその開弁時間によシ内燃機関へ供給
する液体状のLPG燃料の供給量を制御する燃料供給装
置においては、前記噴射弁に供給される液体状燃料に気
泡が混じっていると燃料供給量を正確に計量することは
不可能である。この問題を解決するために、本出願人は
燃料ボンベと噴射弁との間に燃料ポンプを設け、LPG
燃料を加圧して噴射弁に供給し、妊らに噴射弁から燃料
ボンベに通ずるリターン通路に絞シを設けることによル
前記気泡の発生を押え正確な燃料計量の可能なシステム
を特願昭58−173058 によシ提案している。The saturated vapor pressure of LPG used as fuel for automobile internal combustion engines varies from 0 to 20% depending on the fuel composition and ambient temperature.
Kf/cr711 usually varies greatly from 2 to 7 to 9/Cd. 7' (L) is stored in cylinders as automobile fuel.
P and G can be pumped at the saturated vapor pressure. For this reason, conventional fuel supply systems equipped with vaporizer mixers do not require a fuel pump. However, in a fuel supply device that includes a fuel injection valve and controls the amount of liquid LPG fuel supplied to the internal combustion engine based on the valve opening time, air bubbles may be mixed in the liquid fuel supplied to the injection valve. It is impossible to accurately measure the amount of fuel supplied. In order to solve this problem, the applicant installed a fuel pump between the fuel cylinder and the injection valve, and
The patent application proposes a system in which the fuel is pressurized and supplied to the injection valve, and a restriction is provided in the return passage leading from the injection valve to the fuel cylinder, thereby suppressing the generation of air bubbles and allowing accurate fuel metering. 58-173058.
前記燃料供給装置の燃料ポンプとしては、一般にローラ
ベーンポンプなどの回転ポンプが使用されるため加圧さ
れた燃料圧力は脈動する。またLPGは配管とボンベの
温度状態などによシ発生する気泡の有無または気泡の量
の多少が大きく異なシ、この気泡が燃料ポンプに供給さ
れるため脈動とともに加圧力が同一ポンプにおいても大
きく変動する。本出願人の実験によると、燃料ポンプに
よる加圧後の燃料圧力が同一の場合でも加圧前の燃料圧
力が異なるとき、すなわち燃料ポンプによる加圧力が異
なるときには、燃料噴射弁の開弁時間が同じでも燃料噴
射量が大きく異なるという結果を得ている。このため燃
料圧力による燃料噴射量の補正が不可能になるという問
題があった。Since a rotary pump such as a roller vane pump is generally used as the fuel pump of the fuel supply device, the pressurized fuel pressure pulsates. In addition, the presence or absence of bubbles or the amount of bubbles generated in LPG varies greatly depending on the temperature conditions of the piping and cylinder, and since these bubbles are supplied to the fuel pump, the pressurizing pressure varies greatly with the pulsation even in the same pump. do. According to the applicant's experiments, even if the fuel pressure after pressurization by the fuel pump is the same, when the fuel pressure before pressurization is different, that is, when the pressurization force by the fuel pump is different, the opening time of the fuel injection valve is The results show that even though the fuel injection amounts are the same, the fuel injection amounts are significantly different. Therefore, there was a problem in that it became impossible to correct the fuel injection amount based on the fuel pressure.
また本出願人は燃料圧力と燃料温度を計測して燃料組成
と液比型を算出し、燃料噴射弁の開弁時間を燃料圧力と
燃料組成および液比型によ勺補正制(ホ)するシステム
を実願昭57−138954 により提案している。The applicant also measures the fuel pressure and fuel temperature, calculates the fuel composition and liquid ratio type, and adjusts the opening time of the fuel injector according to the fuel pressure, fuel composition, and liquid ratio type. The system was proposed in Utility Model Application No. 57-138954.
この提案による燃料供給システムは燃料をポンプにより
加圧して噴射弁に供給しているため、燃料の組成および
液比型を算出するためにポンプによる加圧前の燃料圧力
を測定するためのものと、噴射弁忙加わる燃料圧力とし
て加圧後の燃料圧力を測定するだめのものとの2個の燃
料圧力士ンサが必要となる欠点があった。The proposed fuel supply system uses a pump to pressurize fuel and supplies it to the injection valve, so it is necessary to measure the fuel pressure before pressurization by the pump in order to calculate the fuel composition and liquid ratio type. However, there is a drawback that two fuel pressure sensors are required, one for measuring the fuel pressure after pressurization as the fuel pressure applied during injection valve operation.
本発明は上述の点に鑑みてなされたもので、その目的と
するところは、LPG内燃機関の燃料供給装置に設けら
れた燃料ポンプの加圧力を常に一定に保ち、安定した混
合比の梁気燃料混合気の供給制御が可能な簡単な構造の
LPG内燃機関の燃料供給装置を提供するにある。The present invention has been made in view of the above-mentioned points, and its purpose is to maintain a constant pressurizing force of a fuel pump installed in a fuel supply system of an LPG internal combustion engine, and to achieve a stable mixture ratio. An object of the present invention is to provide a fuel supply device for an LPG internal combustion engine with a simple structure capable of controlling the supply of fuel mixture.
本発明はLPG内燃機関の燃料供給装置の燃料噴射弁か
ら燃料を燃料ボンベの気相側に戻す燃料リターン通路に
、絞勺と燃料ポンプによる加圧力を制御するレギュレー
タを並列に配設することにより、所期の目的を達成する
ようになしたものである。The present invention is achieved by arranging in parallel a regulator that controls the pressurizing force by the throttle and the fuel pump in the fuel return passage that returns fuel from the fuel injection valve of the fuel supply system of the LPG internal combustion engine to the gas phase side of the fuel cylinder. , which was designed to achieve the intended purpose.
以下本発明に係るLPG内燃機関の燃料供給装置の一実
施例を図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fuel supply system for an LPG internal combustion engine according to the present invention will be described below with reference to the drawings.
第1図および第2図に本発明の一実施例を示す。An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.
該図において、LPG燃料は燃料ボンベ1の液相側より
ソレノイドパルプ2を通り、レギュレータ3内に設けら
れたダイヤフラム4に隔てられた低圧側下部チャンバー
5を経て燃料ポンプ6へ供給される。この燃料ポンプ6
によってカロ圧されたのち燃料溜7に送られ、ここで加
圧後の燃料圧力と燃料温度とがそれぞれ燃料圧力士ン丈
8と丈−ミスタなどの温度センv9にょシ計測されたの
ち燃料噴射弁10に供給される。この燃料噴射弁1゜の
開弁によりLPG燃料の一部がスロットルチャンバー1
1に噴射きれ、蚊入管12を通ってエンジン13に供給
される。前記噴射弁1oより噴射されなかった燃料はリ
ターン通路14を通島前記レギュレータ3のダイヤフラ
ム4に噛てられた高圧側上部チャンバー15に供給され
、該レギュレータ3内に一体に組み込まれたレギュレー
タ通路16と並列な絞り17を通り、ソレノイドパルプ
19を経て前記燃料ボンベ1の気相側へ戻るようになっ
ている。前記レギュレータ3の低圧側下部チャンバー5
には燃料ポンプ6の加圧力を制御するレギュレータスプ
リング2oが装着されており、燃料ポンプ6により加圧
された燃料圧力妙5前記ダイヤフラム4にょシ隔てらn
た高圧側上部チャンバー15に加わシ、該ダイヤフラム
4の上部に加わる圧力が前記レギュレータスプリング2
゜の弾性力と前記燃料ボンベ1のボンベ圧力との和に打
ち勝つと、レギュレータシート18とレギュレータパル
プ21とが離れ、このレギュレータシート18内のジェ
ット22よシのLPG燃料が絞り17にプラスされて前
記燃料ボンベ1の気相側へ戻る。前記レギュレータスプ
リング2oのスプリング荷重は該絞シェアのみの逃げ量
の場合の前記燃料ポンプの加圧力より小さく設定されて
おム常に前記レギュレータシート18と前記レギュレー
タパルプ21とが開閉を繰シ返し一定の加圧ヵになるよ
うに構成されている。In the figure, LPG fuel is supplied from the liquid phase side of a fuel cylinder 1 to a fuel pump 6 through a solenoid pulp 2, a low pressure side lower chamber 5 separated by a diaphragm 4 provided in a regulator 3. This fuel pump 6
After being pressurized by the pressurizer, it is sent to the fuel reservoir 7, where the fuel pressure after pressurization and the fuel temperature are measured by temperature sensors such as fuel pressure min. is supplied to valve 10. By opening this fuel injection valve 1°, a portion of the LPG fuel enters the throttle chamber 1.
1, and is supplied to the engine 13 through the mosquito entry pipe 12. Fuel not injected from the injection valve 1o passes through a return passage 14 and is supplied to a high-pressure side upper chamber 15 that is engaged with the diaphragm 4 of the regulator 3, and a regulator passage 16 that is integrated into the regulator 3. The fuel passes through a throttle 17 parallel to the above, passes through a solenoid pulp 19, and returns to the gas phase side of the fuel cylinder 1. Lower chamber 5 on the low pressure side of the regulator 3
A regulator spring 2o that controls the pressurizing force of the fuel pump 6 is attached to the diaphragm 4.
The pressure applied to the high pressure side upper chamber 15 and the upper part of the diaphragm 4 is applied to the regulator spring 2.
When the sum of the elastic force of .degree. Return to the gas phase side of the fuel cylinder 1. The spring load of the regulator spring 2o is set to be smaller than the pressurizing force of the fuel pump when the escape amount is only the throttle shear. It is configured to be pressurized.
上記の如く構成された本発明の一実施例において、絞シ
17はエンジンの始動時など燃料噴射弁近辺の加圧部通
路内にまだLPG燃料が入っていない時に気泡をボンベ
1に返す作用を有する。始動時にキー・オンするとソレ
ノイドバルブ2および19が開弁し、燃料ポンプ6が駆
動してLPG燃料を加圧しようとするが、絞!1)17
がない場合は配管4内の気泡が逃げる場所がなく、燃料
ポンプ6の入口側にも気泡が存在し燃料ポンプの効率が
落ち、加圧が十分に行なわれず燃料通路内の気泡が抜け
ず、始動および正確な計量制御が行なえない。絞シェフ
を設けたことにより始動直前のわずかな時間に燃料通路
内の気泡が抜け、燃料ポンプ6の効率がほぼ一定となシ
、十分に加圧されてレギュレータスプリング20とのバ
ランスによシ一定加圧力に調圧されている。また絞り1
7のみあってレギュレータ3がない場合は、燃料ポンプ
入口側の気泡によりポンプの加圧力が4 Ky/mm2
の場合に1〜4Kg/van”の範囲で大きな加圧力の
差を生ずる。これは主に燃料ポンプ6の前のソレノイド
バルブ2を通るときに発生する不規則な気泡の−hめ−
c;hる。LPG燃料はこのンレノ・fドバルプ2が発
生する熱により通過中に暖めしれて、■■燃料の一部が
蒸気圧線図(図示せず)の気相側に入り気泡が発生する
のである。このような理由で完全に加圧力を一定に保つ
ためにはレギュレータ3が必要になる。In one embodiment of the present invention configured as described above, the restrictor 17 has the function of returning air bubbles to the cylinder 1 when LPG fuel is not yet in the pressurized passage near the fuel injection valve, such as when starting the engine. have When the key is turned on at startup, solenoid valves 2 and 19 open, and the fuel pump 6 is driven to pressurize the LPG fuel, but it is throttled! 1) 17
If there is no air bubbles in the pipe 4, there is no place for them to escape, and there are also air bubbles on the inlet side of the fuel pump 6, which reduces the efficiency of the fuel pump, and the air bubbles in the fuel passage cannot escape due to insufficient pressurization. Unable to start and accurately control metering. By providing a throttle valve, air bubbles in the fuel passage are released for a short period of time just before starting, and the efficiency of the fuel pump 6 remains almost constant.The efficiency of the fuel pump 6 remains constant due to the sufficient pressurization and balance with the regulator spring 20. The pressure is regulated to the applied pressure. Also aperture 1
If there is only 7 and no regulator 3, the pressurizing force of the pump will be 4 Ky/mm2 due to air bubbles on the fuel pump inlet side.
In this case, a large pressure difference occurs in the range of 1 to 4 kg/van. This is mainly due to irregular air bubbles generated when passing through the solenoid valve 2 in front of the fuel pump 6.
c; hru. The LPG fuel is warmed up during passage by the heat generated by the fuel pump 2, and a portion of the fuel enters the gas phase side of the vapor pressure diagram (not shown) and generates bubbles. For this reason, the regulator 3 is required to keep the pressurizing force completely constant.
上述したようにM、? 17は主としてエンジン始動時
の気泡を逃がす作用を持ち、適正ガ絞り径を選定するこ
とによシンキュレータ3の調圧効果がよシ緻密となシ、
レギュレータ3のみの場合よ〃燃圧の脈動も少なくダン
パーの役割シも兼ね備える結果となシ、システム内のダ
ンパーを取シ外すことも可能となる。As mentioned above, M? 17 mainly has the function of releasing air bubbles when starting the engine, and by selecting an appropriate gas orifice diameter, the pressure regulating effect of the synculator 3 can be made more precise.
Compared to the case where only the regulator 3 is used, there is less fuel pressure pulsation and it also serves as a damper, and it is also possible to remove the damper from the system.
上記のように本発明によれば、LPG内燃機関の燃料供
給装置に簡単な購造のレギュレータと絞りとを並列に設
けたので、燃料ポンプの加圧力を常罠一定に保つことに
よシ〃l圧力の変動による仝燃比変化の影響をなくし、
1つの燃料圧力センテによシ加圧後の圧力を計測するこ
とにより各種制御を正確に行なうことができ、さらには
燃料ポンプの脈動も吸収できるようになシ、その効果は
大である。As described above, according to the present invention, the fuel supply system for an LPG internal combustion engine is provided with a simple regulator and a throttle in parallel, so that the pressure of the fuel pump can be kept constant at all times. l Eliminates the influence of changes in fuel-fuel ratio due to pressure fluctuations,
By measuring the pressure after pressurization with one fuel pressure sensor, various controls can be performed accurately, and furthermore, the pulsation of the fuel pump can be absorbed, which is very effective.
第1図は本発明に係るLPG内燃機関の燃料供給装置の
一実施例の構成を示す系統図、第2図は第1図のレギュ
レータ部の詳細を示す縦断面図である。
1・・・燃料ボンベ、2.19・・・ソレノイドバルブ
3・・・レギュレータ、4・・・ダイアフラム、6・・
・燃料ポンプ、8・・・燃料圧力センサ、9・・・m&
センサ、13・・・エンジン、14・・・燃料リターン
通路、16・・・レギュレータ通路、17・・・絞ム
t S−、レギュレータシート、2o・・ルギュレ〜タ
スフリング、21・・・レギュレータバルフ。
代理人 弁理士 高橋明夫FIG. 1 is a system diagram showing the configuration of an embodiment of a fuel supply system for an LPG internal combustion engine according to the present invention, and FIG. 2 is a longitudinal cross-sectional view showing details of the regulator section of FIG. 1. 1...Fuel cylinder, 2.19...Solenoid valve 3...Regulator, 4...Diaphragm, 6...
・Fuel pump, 8...Fuel pressure sensor, 9...m&
Sensor, 13... Engine, 14... Fuel return passage, 16... Regulator passage, 17... Throttle
t S-, regulator seat, 2o... Lugure~tasfring, 21... regulator valve. Agent Patent Attorney Akio Takahashi
Claims (1)
油ガスの内燃機関への供給量を開弁時間によって制御す
る燃料噴射弁と、この燃料噴射弁と前記燃料ボンベの液
相取出口との間に設けられた燃料ポンプと、前記燃料噴
射弁から前記燃料ボンベの気相側へ燃料を戻す燃料リタ
ーン通路とを設けた液化石油ガス内燃機関の燃料供給装
置において、−前記燃料リターン通路に絞シと前記燃料
ポンプの加圧力を制御するレギュレータとを並列に設け
たことを特徴とする液化石油ガス内燃機関の燃料供給装
置。1. A fuel cylinder that stores liquefied petroleum gas, a fuel injection valve that controls the amount of liquefied petroleum gas supplied to the internal combustion engine by the valve opening time, and a connection between the fuel injection valve and the liquid phase outlet of the fuel cylinder. In the fuel supply device for a liquefied petroleum gas internal combustion engine, the fuel pump is provided between the fuel pump and the fuel return passage for returning fuel from the fuel injection valve to the gas phase side of the fuel cylinder. 1. A fuel supply device for a liquefied petroleum gas internal combustion engine, characterized in that a regulator and a regulator for controlling the pressurizing force of the fuel pump are provided in parallel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59078542A JPS60222550A (en) | 1984-04-20 | 1984-04-20 | Fuel feeding device for lpg internal-combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59078542A JPS60222550A (en) | 1984-04-20 | 1984-04-20 | Fuel feeding device for lpg internal-combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60222550A true JPS60222550A (en) | 1985-11-07 |
JPH0158340B2 JPH0158340B2 (en) | 1989-12-11 |
Family
ID=13664798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59078542A Granted JPS60222550A (en) | 1984-04-20 | 1984-04-20 | Fuel feeding device for lpg internal-combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60222550A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1003256C2 (en) * | 1995-06-09 | 1998-04-06 | Walbro Corp | Liquid propane fuel delivery system. |
NL1009528C2 (en) | 1998-06-30 | 2000-01-04 | Vialle Beheer B V | Liquefied gas fuel system. |
KR20020077762A (en) * | 2001-04-03 | 2002-10-14 | (주)모토닉 | Apparatus for supplying fuel of vehicle using gas fuel |
US6966307B2 (en) | 2003-03-28 | 2005-11-22 | Hyundai Motor Company | Fuel drain structure in fuel line |
KR100683072B1 (en) | 2002-07-30 | 2007-02-15 | 아이상 고교 가부시키가이샤 | Fuel supply apparatus for internal combustion engine |
-
1984
- 1984-04-20 JP JP59078542A patent/JPS60222550A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1003256C2 (en) * | 1995-06-09 | 1998-04-06 | Walbro Corp | Liquid propane fuel delivery system. |
NL1009528C2 (en) | 1998-06-30 | 2000-01-04 | Vialle Beheer B V | Liquefied gas fuel system. |
KR20020077762A (en) * | 2001-04-03 | 2002-10-14 | (주)모토닉 | Apparatus for supplying fuel of vehicle using gas fuel |
KR100683072B1 (en) | 2002-07-30 | 2007-02-15 | 아이상 고교 가부시키가이샤 | Fuel supply apparatus for internal combustion engine |
US6966307B2 (en) | 2003-03-28 | 2005-11-22 | Hyundai Motor Company | Fuel drain structure in fuel line |
Also Published As
Publication number | Publication date |
---|---|
JPH0158340B2 (en) | 1989-12-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |