JPS6359017B2 - - Google Patents
Info
- Publication number
- JPS6359017B2 JPS6359017B2 JP57088113A JP8811382A JPS6359017B2 JP S6359017 B2 JPS6359017 B2 JP S6359017B2 JP 57088113 A JP57088113 A JP 57088113A JP 8811382 A JP8811382 A JP 8811382A JP S6359017 B2 JPS6359017 B2 JP S6359017B2
- Authority
- JP
- Japan
- Prior art keywords
- engine
- lpg
- signal
- gasoline
- temperature
- 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 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000004880 explosion Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 2
- 241000234435 Lilium Species 0.000 description 5
- 239000006200 vaporizer Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
- F02D19/0631—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position by estimation, i.e. without using direct measurements of a corresponding sensor
-
- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
【発明の詳細な説明】
低温時におけるLPG機関の始動時には、通常
LPGのバルブを閉じ、気化器浮子室上流側のガ
ソリンコツクを開いてクランキングを行い、ガソ
リンによつて機関の始動及び暖機のためのアイド
リング運転を行い、機関暖機後上記ガソリンコツ
クを閉じ、LPGコツクを開いてLPG運転に移行
する。浮子室中のガソリンが消費しつくされる迄
はLPGとガソリンが共に機関に供給されるので、
その間はオーバリツチ運転となる。上記従来方法
によるLPG機関の始動操作は面倒である上、オ
ーバリツチ運転は大気汚染の原因ともなる。本考
案はLPG機関の低温下における始動及びそれに
続く暖機運転を完全自動化することを目的とし、
機関が始動されるとき、及び暖機運転時に、吸気
温度及び機関温度に応じて、始動及び暖機運転時
に要求されるLPG燃料流量と実際流量との差、
即ちクランキング時及び完爆後の暖機運転時にお
けるLPG燃料不足分をガソリンインジエクタに
よつて補正増量するLPG機関の始動装置に関す
る。以下図によつて本発明の詳細を説明する。第
１図は上記ガソリン・インジエクタをLPG機関
の吸気弁の直前に配置した場合、第２図はLPG
気化器の主吸気通路のベンチユリ上方にガソリン
インジエクタを配置した場合の実施例を示す。第
１図において符号１はLPG気化器、２は上記
LPG気化器主吸気通路のベンチユリ、３は上記
ベンチユリ部に開口する主ノズル、４は絞り弁、
５は上記絞り弁と一体に回動するレバーで、絞り
弁４の閉方向に図には示してないスプリングで付
勢されている。６はLPGのボンベ、７はキース
イツチのオン・オフによつて開閉するバルブ、８
はLPGのレギユレータ（ベーパライザを含む）、
９はガソリンタンク、１０はガソリンポンプ、１
１はガソリンタンク９と、ガソリンポンプ１０を
結ぶ送油管、１２はレギユレータ、１３はガソリ
ンのリタンパイプ、１４はインジエクタ、１５は
アイドリング回転速度制御装置（ISC）、１６は
上記アイドリング回転速度制御装置の軸方向に移
動して、LPG機関の始動及びアイドリング時に
絞り弁４の開度を制御するピンで、その一端はレ
バー５の端部に当接している。１７はマイクロプ
ロセツサを基本とする制御回路で、ガソリンポン
プ１０、ガソリン・インジエクタ１４及びアイド
リング回転速度制御装置を制御するため、始動モ
ータオン・オフ信号１８、機関温度信号１９、機
関回転速度信号２０、吸気圧力信号２１、絞り弁
開度信号２２（ポテンシヨメータによる）、吸気
温度信号２３を入力し、ガソリンポンプ駆動信号
２５、インジエクタのガソリン噴射量制御信号２
６、アイドリング回転速度制御信号２７を出力す
る。２８はLPG機関の吸入弁、２９はパイロツ
トポートである。第１図においてはインジエクタ
１４が吸入弁２８の直前に配置されているのに対
して第２図においてはインジエクタ１４がLPG
気化器１のベンチユリ２の上方に配置されている
外は、第１図の場合と全く同様であるので、第２
図では詳細は省略してある。[Detailed description of the invention] When starting an LPG engine at low temperatures, normally
Close the LPG valve, open the gasoline tank on the upstream side of the carburetor float chamber, perform cranking, start the engine with gasoline, and perform idling to warm up the engine. After warming up the engine, close the gasoline tank. , open the LPG pot and switch to LPG operation. Both LPG and gasoline are supplied to the engine until the gasoline in the float chamber is completely consumed.
During that time, overbalance operation will be performed. Starting an LPG engine using the above-mentioned conventional method is troublesome, and overbalance operation also causes air pollution. The purpose of this invention is to fully automate the start-up and subsequent warm-up of LPG engines at low temperatures.
When the engine is started and during warm-up, the difference between the required LPG fuel flow rate and the actual flow rate during start-up and warm-up, depending on the intake air temperature and engine temperature;
That is, the present invention relates to a starting device for an LPG engine that uses a gasoline injector to compensate for and increase LPG fuel shortage during cranking and during warm-up after complete explosion. The details of the present invention will be explained below with reference to the drawings. Figure 1 shows the case where the above gasoline injector is placed just before the intake valve of the LPG engine, and Figure 2 shows the case where the gasoline injector is placed just before the intake valve of the LPG engine.
An embodiment is shown in which a gasoline injector is placed above a bench lily in a main intake passage of a carburetor. In Figure 1, numeral 1 is the LPG vaporizer, 2 is the above
A bench lily of the LPG vaporizer main intake passage, 3 a main nozzle opening into the bench lily portion, 4 a throttle valve,
Reference numeral 5 denotes a lever that rotates together with the throttle valve, and is biased in the closing direction of the throttle valve 4 by a spring not shown. 6 is an LPG cylinder, 7 is a valve that opens and closes by turning on and off a key switch, 8
is LPG regulator (including vaporizer),
9 is a gasoline tank, 10 is a gasoline pump, 1
1 is an oil pipe connecting the gasoline tank 9 and the gasoline pump 10, 12 is a regulator, 13 is a gasoline return pipe, 14 is an injector, 15 is an idling speed control device (ISC), and 16 is a shaft of the idling speed control device. This is a pin that moves in the direction to control the opening degree of the throttle valve 4 during starting and idling of the LPG engine, and one end of the pin is in contact with the end of the lever 5. 17 is a control circuit based on a microprocessor, which controls the gasoline pump 10, the gasoline injector 14, and the idling speed control device, and includes a starting motor on/off signal 18, an engine temperature signal 19, an engine speed signal 20, Input the intake pressure signal 21, throttle valve opening signal 22 (by potentiometer), intake temperature signal 23, gasoline pump drive signal 25, and injector gasoline injection amount control signal 2.
6. Output the idling rotation speed control signal 27. 28 is the intake valve of the LPG engine, and 29 is the pilot port. In FIG. 1, the injector 14 is located just before the intake valve 28, while in FIG.
The outside of the carburetor 1, which is placed above the bench lily 2, is exactly the same as that shown in FIG.
Details are omitted in the figure.
次に本発明にかゝるLPG機関の始動装置の作
用を説明する。LPG機関がLPGだけで始動する
ためには吸気温度と機関温度が一定の値以上であ
ることが必要である。今この温度以下で始動モー
テがオンされ、クランキングが開始されると、レ
ギユレータ８の出口側の圧力が下り、レギユレー
タ８の作用によつてLPG気化器の主吸気通路内
にLPGが吸入されるが低温のため混合気濃度が
低く着火が困難である。一方始動モータがオンと
され、始動モータのオン信号、クランキング回転
速度、吸入圧力、機関温度、大気温度の各信号が
制御回路１７に入力されると、アイドリング回転
速度制御装置が制御回路の出力信号によつて制御
されて適正な絞り弁開度が与えられ、又制御回路
１７によつて演算されたLPGの不足分を補正す
るガソリン流量信号がガソリンインジエクタ１４
に出力されて着火可能の濃度の混合気が形成され
LPG機関は始動（完爆）する。完爆後暖機運転
中は機関温度、吸気温度に応じてガソリン噴射に
よるLPG不足分の補正が行われ、又アイドリン
グ回転速度制御装置によつて機関回転速度が設定
値に保たれる。暖機完了と共にガソリン噴射は停
止する。機関が暖機完了したときは吸気の予熱も
十分行われる状態となつているから、吸気温度に
対するガソリン噴射による燃料増量補正は実際上
必要がない。機関温度は多くの場合冷却水温によ
つて代表される。又本考案の始動装置はアイドリ
ング回転速度制御装置１５を持つているので、
LPG機関に各種の電気的負荷、クーラコンプレ
ツサ負荷に対するアイドルアツプ制御も、これら
のアイドルアツプ要求信号を制御回路に入力する
ことによつて可能となる。（図面ではこれらの入
力は省略してある。）第１図において制御回路１
７に破線を以て示した入力２４が記載してある
が、これは排気ガスのO2センサの信号入力を意
味し、始動、暖機完了後の通常運転移行後、空燃
比フイードバツク制御を可能にするため設けたも
のである。暖機完了後も全運転領域にわたつて空
気とLPGの混合気の混合比が稀薄傾向にある様
にしておけば常時ガソリンが少量噴射され、O2
センサによるフイードバツク空燃比制御を行うこ
とができる。又上記の様に空燃比制御可能にセツ
テイングされているときは本考案のLPG機関の
始動装置は、車両走行中LPGがなくなつたとき
ガソリン噴射によつて道路の片側に退避するため
の短距離の運行も可能となるが本考案の目的では
ないから詳細は省略する。 Next, the operation of the LPG engine starting device according to the present invention will be explained. In order for an LPG engine to start using only LPG, the intake air temperature and engine temperature must be above a certain value. When the starting motor is turned on and cranking starts below this temperature, the pressure on the outlet side of the regulator 8 decreases, and LPG is sucked into the main intake passage of the LPG vaporizer by the action of the regulator 8. Since the temperature is low, the mixture concentration is low and ignition is difficult. On the other hand, when the starting motor is turned on and the starting motor on signal, cranking rotational speed, suction pressure, engine temperature, and atmospheric temperature signals are input to the control circuit 17, the idling rotational speed control device outputs the output from the control circuit. The gasoline injector 14 is controlled by the signal to give an appropriate throttle valve opening, and the gasoline flow rate signal that corrects the LPG shortage calculated by the control circuit 17 is transmitted to the gasoline injector 14.
is output to form a mixture with an ignitable concentration.
The LPG engine starts (complete explosion). During warm-up operation after a complete explosion, the LPG shortage is compensated by gasoline injection according to the engine temperature and intake air temperature, and the engine rotation speed is maintained at the set value by the idling rotation speed control device. Gasoline injection stops upon completion of warm-up. When the engine has been warmed up, the intake air has been sufficiently preheated, so there is no actual need to correct the intake air temperature by increasing the amount of fuel by gasoline injection. Engine temperature is often represented by cooling water temperature. Also, since the starting device of the present invention has an idling rotation speed control device 15,
Idle-up control for various electrical loads and cooler compressor loads on the LPG engine is also possible by inputting these idle-up request signals to the control circuit. (These inputs are omitted in the drawing.) In Fig. 1, the control circuit 1
The input 24 indicated by a broken line in 7 is a signal input from the exhaust gas O 2 sensor, and enables air-fuel ratio feedback control after transition to normal operation after starting and warming up. It was established for this purpose. Even after warm-up is complete, if the mixture ratio of air and LPG tends to be lean throughout the entire operating range, a small amount of gasoline will always be injected, and O 2
Feedback air-fuel ratio control can be performed using sensors. In addition, when the air-fuel ratio is set to be controllable as described above, the LPG engine starting device of the present invention is capable of running a short distance to one side of the road by injecting gasoline when the vehicle runs out of LPG while the vehicle is running. It is also possible to operate the system, but since this is not the purpose of this invention, the details will be omitted.
本発明にかゝる始動装置をそなえたLPG機関
においては始動時におけるチヨーク操作、アクセ
ル操作、燃料切換操作が不要で、アクセルペダル
開放のまゝ始動暖機を行うことができ、かつ気化
器によるガソリンとLPGの切換運転にくらべて
燃料が節約できるという利点がある。 An LPG engine equipped with the starting device according to the present invention does not require any throttle operation, accelerator operation, or fuel switching operation at the time of starting, and can be started and warmed up with the accelerator pedal released. This has the advantage of saving fuel compared to switching between gasoline and LPG.
第１図及び第２図は本発明にかゝる始動装置を
そなえたLPG機関を示す。
１……LPG気化器、２……ベンチユリ、３…
…LPGの主ノズル、８……LPGのレギユレータ、
７……キースイツチで開閉するバルブ、９……ガ
ソリンタンク、１０……ガソリンポンプ、１１…
…送油管、１２……レギユレータ、１３……リタ
ンパイプ、１４……インジエクタ、１５……アイ
ドリング回転速度制御装置、１７……制御回路、
１８……始動モータオン・オフ信号、１９……機
関温度信号、２０……回転速度信号、２１……吸
気圧力信号、２２……絞り弁開度信号、２３……
吸気温度信号、２４……O2センサ信号、２５…
…ガソリンポンプ駆動信号、２６……噴射量制御
信号、２７……アイドリング回転速度制御信号。
1 and 2 show an LPG engine equipped with a starting device according to the present invention. 1... LPG vaporizer, 2... bench lily, 3...
...LPG main nozzle, 8...LPG regulator,
7...Valve that opens and closes with a key switch, 9...Gasoline tank, 10...Gasoline pump, 11...
... Oil pipe, 12 ... Regulator, 13 ... Retan pipe, 14 ... Injector, 15 ... Idling rotation speed control device, 17 ... Control circuit,
18... Starting motor on/off signal, 19... Engine temperature signal, 20... Rotational speed signal, 21... Intake pressure signal, 22... Throttle valve opening signal, 23...
Intake air temperature signal, 24... O2 sensor signal, 25...
...gasoline pump drive signal, 26...injection amount control signal, 27...idling rotation speed control signal.
Claims (1)
て制御されるガツリンインジエクタ１４とアイド
リング回転速度制御装置１５を以て構成し、低温
時におけるLPG機関始動時においては吸気温度、
上記LPG機関温度及び始動モータのオン信号１
８を上記電子制御回路１７が入力演算して始動燃
料増量補正信号と絞弁開度信号をそれぞれ上記ガ
ソリンインジエクタ１４及び上記アイドリング回
転速度制御装置１５に出力し、上記LPG機関完
爆後の暖機運転に移行時には吸気温度、上記
LPG機関温度、機関回転速度、吸気圧力、絞弁
開度及び始動モータ・オフの各信号を入力演算し
て暖機時燃料増量補正信号と絞弁開度信号をそれ
ぞれ上記ガソリンインジエクタ１４及びアイドリ
ング回転速度制御装置１５に出力するLPG機関
の始動装置。 ２ 上記制御回路１７が吸気温度、機関温度毎
の、低温下の始動及び暖機運転時におけるLPG
燃料供給量の不足分を補正するための上記ガソリ
ンインジエクタのガソリン噴射量を記憶して居
り、機関始動及び完爆後の暖機運転時、それぞれ
上記の各入力信号を入力して、それぞれに必要な
絞り弁開度及びガソリン噴射量制御信号を上記ア
イドリング開度制御装置及びガソリン・インジエ
クタに出力する様にプログラムされている上記特
許請求の範囲第１項記載のLPG機関の始動装置。 ３ LPG機関が各種電気的負荷、クーラコンプ
レツサ負荷を有する場合、上記制御回路がアイド
ルアツプ要求信号を入力演算してアイドリング回
転速度制御装置１７にアイドルアツプ信号を出力
することができる上記特許請求の範囲第１項及び
第２項記載のLPG機関の始動装置。 ４ LPG機関の暖機完了後は機関温度、特に冷
却水温度センサの信号を制御回路１７が入力して
インジエクタのガソリン噴射信号出力を停止し、
補正増量のためのガソリン噴射が停止する特許請
求の範囲第１項乃至第３項記載のLPG機関の始
動装置。[Claims] 1. Consisting of an electronic control circuit 17, a Gatulin injector 14 controlled by the electronic control circuit, and an idling rotation speed control device 15, when starting an LPG engine at a low temperature, the intake air temperature is controlled. ,
Above LPG engine temperature and starting motor ON signal 1
8 is input and calculated by the electronic control circuit 17, and outputs a starting fuel increase correction signal and a throttle valve opening signal to the gasoline injector 14 and the idling rotation speed control device 15, respectively, to warm up the LPG engine after complete explosion. When transitioning to machine operation, the intake air temperature, above
Signals such as LPG engine temperature, engine speed, intake pressure, throttle valve opening and starting motor off are input and calculated to generate a warm-up fuel increase correction signal and a throttle valve opening signal for the gasoline injector 14 and idling, respectively. A starting device for the LPG engine that outputs to the rotation speed control device 15. 2 The control circuit 17 controls the LPG at each intake air temperature and engine temperature during low-temperature startup and warm-up operation.
The gasoline injection amount of the gasoline injector is memorized to compensate for the shortage of fuel supply, and when the engine is started and warmed up after a complete explosion, each of the above input signals is input, and each The starting device for an LPG engine according to claim 1, wherein the LPG engine starting device is programmed to output necessary throttle valve opening and gasoline injection amount control signals to the idling opening control device and gasoline injector. 3. When the LPG engine has various electrical loads and cooler compressor loads, the control circuit inputs and calculates the idle up request signal and outputs the idle up signal to the idling speed control device 17. A starting device for an LPG engine according to items 1 and 2 of the scope. 4 After the LPG engine has been warmed up, the control circuit 17 inputs the engine temperature, especially the signal from the cooling water temperature sensor, and stops outputting the gasoline injection signal from the injector.
The LPG engine starting device according to any one of claims 1 to 3, wherein gasoline injection for correction increase is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57088113A JPS58206841A (en) | 1982-05-26 | 1982-05-26 | Starting device for lpg engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57088113A JPS58206841A (en) | 1982-05-26 | 1982-05-26 | Starting device for lpg engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58206841A JPS58206841A (en) | 1983-12-02 |
| JPS6359017B2 true JPS6359017B2 (en) | 1988-11-17 |
Family
ID=13933825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57088113A Granted JPS58206841A (en) | 1982-05-26 | 1982-05-26 | Starting device for lpg engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58206841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0426112U (en) * | 1990-06-26 | 1992-03-02 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108855A (en) * | 1982-12-13 | 1984-06-23 | Nippon Carbureter Co Ltd | Feeding method of lpg for engine |
-
1982
- 1982-05-26 JP JP57088113A patent/JPS58206841A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0426112U (en) * | 1990-06-26 | 1992-03-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58206841A (en) | 1983-12-02 |
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