JPS626100B2 - - Google Patents
Info
- Publication number
- JPS626100B2 JPS626100B2 JP55177740A JP17774080A JPS626100B2 JP S626100 B2 JPS626100 B2 JP S626100B2 JP 55177740 A JP55177740 A JP 55177740A JP 17774080 A JP17774080 A JP 17774080A JP S626100 B2 JPS626100 B2 JP S626100B2
- Authority
- JP
- Japan
- Prior art keywords
- lpg
- regulator
- engine
- cooling water
- gasoline
- 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
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
【発明の詳細な説明】
本発明は、LPG、ガソリン併用燃料車のレギユ
レータ加熱防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a regulator heating prevention device for an LPG/gasoline fuel vehicle.
従来、LPG、ガソリン併用燃料車においては、
LPG運転時とガソリン運転時の両運転時共に、
LPGレギユレータにエンジンで加熱されたエンジ
ン冷却水を常に循環するようになつている。その
ため、LPG運転時においては、LPGがレギユレー
タ内部で気化するので、その内部温度はエンジン
冷却水温より低い状態となるが、ガソリン運転時
においては前記のLPGの気化が行なわれずLPGレ
ギユレータ内部が加熱されたエンジン冷却水によ
つて高温となる。通常LPGレギユレータに使用さ
れるゴム部材は、LPG運転を前提として、その運
転時におけるLPGレギユレータ内部の温度に適応
するように設定されているのでガソリン運転を続
けると前記ゴム部材が所定以上の高温に加温され
て劣化が早くなり、その交換時期が早くなる。ま
た、LPG運転を行なうとレギユレータ内部にLPG
の不純物である液状タールが付着する。そのため
この状態でガソリン運転を行なつて前記のように
LPGレギユレータ内部を高温に加熱すると、前記
液状タールが高温により固形化し、これがレギユ
レータのパルプシート面に付着して調圧不良を招
くなどの問題があつた。 Conventionally, in LPG and gasoline fueled vehicles,
Both during LPG operation and gasoline operation,
Engine coolant heated by the engine is constantly circulated through the LPG regulator. Therefore, during LPG operation, LPG is vaporized inside the regulator, so its internal temperature is lower than the engine cooling water temperature. However, during gasoline operation, the LPG does not vaporize and the inside of the LPG regulator is heated. The engine cooling water becomes hot. Normally, the rubber members used in LPG regulators are set to adapt to the temperature inside the LPG regulator during LPG operation, so if gasoline operation continues, the rubber members will reach a high temperature above a specified level. As it gets warmer, it deteriorates more quickly and needs to be replaced sooner. Also, when LPG operation is performed, LPG may be inside the regulator.
Liquid tar, which is an impurity, adheres to the surface. Therefore, if you drive on gasoline in this condition, as described above,
When the inside of the LPG regulator is heated to a high temperature, the liquid tar solidifies due to the high temperature, and this adheres to the pulp sheet surface of the regulator, causing problems such as poor pressure regulation.
本発明は、ガソリン運転時には、LPGレギユレ
ータに対しエンジンの冷却水を循環させないよう
にして前記従来の問題点を解消することを目的と
するものである。 The present invention aims to solve the above-mentioned conventional problems by preventing engine cooling water from circulating through the LPG regulator during gasoline operation.
次に図面に示す本発明の実施例について説明す
る。 Next, embodiments of the present invention shown in the drawings will be described.
１はエンジン、２はLPGレギユレータで、これ
らの間には、エンジン冷却水の循環水路が構成さ
れている。すなわち、エンジン１に設けたエンジ
ン冷却水のアウトレツト３と、LPGレギユレータ
２に設けた冷却水のインレツト４とを通水路５，
６で連通し、また、エンジン１に設けたエンジン
冷却水のインレツト７と、LPGレギユレータ２に
設けた冷却水のアウトレツト８とを通水路９で連
通して、エンジン冷却水をLPGレギユレータ２内
を通過して循環させるようになつている。１０は
通水路５，６間に介在した開閉弁で、エンジンか
らLPGレギユレータ２への冷却水の流れを開放、
遮断するようになつている。該開閉弁１０は、
LPGとガソリンの燃料切換時の電気信号によつて
作動する電磁弁、または、エンジン負圧によつて
作動するダイアフラム弁、または、人為的に作動
する弁等を用い、該開閉弁１０によつてガソリン
運転時に、通水路５，６を遮断するように構成す
るものである。 1 is an engine, 2 is an LPG regulator, and an engine cooling water circulation channel is configured between them. That is, an engine cooling water outlet 3 provided in the engine 1 and a cooling water inlet 4 provided in the LPG regulator 2 are connected to a passageway 5,
In addition, an engine cooling water inlet 7 provided in the engine 1 and a cooling water outlet 8 provided in the LPG regulator 2 are communicated with each other through a passageway 9, so that the engine cooling water flows inside the LPG regulator 2. It is designed to pass through and circulate. 10 is an on-off valve interposed between the water passages 5 and 6, which opens the flow of cooling water from the engine to the LPG regulator 2;
It's starting to shut down. The on-off valve 10 is
A solenoid valve operated by an electric signal when switching fuel between LPG and gasoline, a diaphragm valve operated by engine negative pressure, or an artificially operated valve is used, and the on-off valve 10 is used. The structure is such that the water passages 5 and 6 are shut off during gasoline operation.
以上のようであるから、LPG運転時には、開閉
弁１０を開放することにより、加熱されたエンジ
ン冷却水をLPGレギユレータ２に供給循環させ
つゝ運転することができる。またガソリン運転時
には、開閉弁１０を閉塞することにより、加熱さ
れたエンジン冷却水のLPGレギユレータ２への供
給を遮断して運転することができる。したがつ
て、ガソリン運転時に開閉弁１０を閉塞作動する
ことにより、LPGレギユレータ２内が高温に加熱
されることがない。そのため、LPGレギユレータ
内のゴム部材の耐久性を向上させることができる
上に、前記従来のような液状タールの固形化によ
る調圧不良の発生を防止できる特長がある。 As described above, during LPG operation, by opening the on-off valve 10, the engine can be operated while supplying and circulating heated engine cooling water to the LPG regulator 2. Further, during gasoline operation, by closing the on-off valve 10, the supply of heated engine cooling water to the LPG regulator 2 can be cut off. Therefore, by closing the on-off valve 10 during gasoline operation, the inside of the LPG regulator 2 will not be heated to a high temperature. Therefore, it is possible to improve the durability of the rubber member in the LPG regulator, and also has the advantage of preventing the occurrence of poor pressure regulation due to solidification of liquid tar as in the conventional method.
図面は本発明の実施例を示す側面図である。
１…エンジン、２…LPGレギユレータ、３…エ
ンジンのアウトレツト、５，６，９…通水路、１
０…開閉弁。
The drawing is a side view showing an embodiment of the invention. 1... Engine, 2... LPG regulator, 3... Engine outlet, 5, 6, 9... Water passage, 1
0...Open/close valve.
Claims (1)
において加熱されたエンジン冷却水をLPGレギユ
レータに循環させるようにしたものにおいて、前
記冷却水がエンジン側からLPGレギユレータ側に
流れる循環通水路中に、LPGとガソリンの切換時
に作動され、ガソリン運転時には閉じ、LPG運転
時には開く、遮断と開放の二動作のみを行なう開
閉弁を設けたことを特徴とするLPG、ガソリン併
用燃料車におけるLPGレギユレータの加熱防止装
置。1. In an LPG-gasoline fuel vehicle, in which engine cooling water heated in the engine is circulated to the LPG regulator, there is a circulation channel in which the cooling water flows from the engine side to the LPG regulator side. A heating prevention device for an LPG regulator in an LPG/gasoline fuel vehicle, characterized by being provided with an on-off valve that performs only two operations: shutoff and opening, which is activated when gasoline is switched, closed during gasoline operation, and opened during LPG operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17774080A JPS57102547A (en) | 1980-12-16 | 1980-12-16 | Preventive device against heating of lpg regulator in car using lpg and gasoline jointly for fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17774080A JPS57102547A (en) | 1980-12-16 | 1980-12-16 | Preventive device against heating of lpg regulator in car using lpg and gasoline jointly for fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57102547A JPS57102547A (en) | 1982-06-25 |
| JPS626100B2 true JPS626100B2 (en) | 1987-02-09 |
Family
ID=16036285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17774080A Granted JPS57102547A (en) | 1980-12-16 | 1980-12-16 | Preventive device against heating of lpg regulator in car using lpg and gasoline jointly for fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57102547A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS488964U (en) * | 1971-06-11 | 1973-01-31 |
-
1980
- 1980-12-16 JP JP17774080A patent/JPS57102547A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57102547A (en) | 1982-06-25 |
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