JPS6145316Y2 - - Google Patents
Info
- Publication number
- JPS6145316Y2 JPS6145316Y2 JP1981042686U JP4268681U JPS6145316Y2 JP S6145316 Y2 JPS6145316 Y2 JP S6145316Y2 JP 1981042686 U JP1981042686 U JP 1981042686U JP 4268681 U JP4268681 U JP 4268681U JP S6145316 Y2 JPS6145316 Y2 JP S6145316Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- cooling
- engine
- electric heater
- heating
- 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 39
- 238000001816 cooling Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Description
【考案の詳細な説明】
この考案は燃料の重質化に伴うデイーゼル機関
の始動性や性能の低下を防ぎ、併せて高温時にお
ける燃料の実質噴射量の低減を防ぐようにした燃
料温度調整装置に関する。[Detailed explanation of the invention] This invention is a fuel temperature adjustment device that prevents deterioration in startability and performance of a diesel engine due to heavier fuel, and also prevents a reduction in the actual amount of fuel injected at high temperatures. Regarding.
一般に自動車などのデイーゼル機関の燃料系統
には加熱装置や冷却装置は備え付けられていな
い。 Generally, the fuel system of a diesel engine such as an automobile is not equipped with a heating device or a cooling device.
ところが、低温時に燃料からワツクスが析出し
て燃料フイルター燃料配管で目詰りを起したりし
て機関の出力が兆十分に発揮されないことがあ
る。 However, at low temperatures, wax may precipitate from the fuel and clog the fuel filter or fuel pipe, which may prevent the engine from producing its full output.
逆に燃料が高温になりすぎた場合には、燃料が
膨張し供給燃料が実質的に減少し、結果的に機関
出力の低下を招くことがある。 Conversely, if the fuel becomes too hot, the fuel expands and the amount of fuel supplied is substantially reduced, which may result in a reduction in engine output.
本考案はこのような問題に着目してなされたも
ので、燃料配管の一部に電熱ヒータなどによる加
熱手段と、機関冷却温水と冷水とを選択的に切換
えて作動する加熱・冷却手段とを備えたデイーゼ
ル機関の燃料温度調整装置を提供するものであ
る。 The present invention was developed with a focus on these problems, and includes a heating means such as an electric heater in a part of the fuel pipe, and a heating/cooling means that operates by selectively switching between engine cooling hot water and cold water. The present invention provides a fuel temperature adjustment device for a diesel engine.
以下本考案の実施例を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
この実施例は、燃料タンクから燃料噴射ポンプ
１に至るまでの燃料配管２の途中に電熱ヒータ３
と加熱・冷却手段４を備えたものをあらわす。 In this embodiment, an electric heater 3 is installed in the middle of the fuel pipe 2 from the fuel tank to the fuel injection pump 1.
represents a device equipped with heating/cooling means 4.
電熱ヒータ３は、燃料フイルタ５の上流に設
け、スイツチ６を介して電源７により通電する。 The electric heater 3 is provided upstream of the fuel filter 5 and is energized by a power source 7 via a switch 6 .
加熱冷却手段４は、暖機後の機関冷却水（温
水）と、この機関冷却水のラジエータとは別個の
ラジエータを通過する例えば５℃以下の冷水とを
三方弁８により選択的に切り換え、燃料を加熱・
冷却する熱交換器である。 The heating/cooling means 4 selectively switches engine cooling water (warm water) after warm-up and cold water of, for example, 5° C. or lower, which passes through a radiator separate from the engine cooling water radiator, using a three-way valve 8 to cool the fuel. heating and
It is a heat exchanger for cooling.
即ち、燃料温度がワツクス析出温度以下のとき
三方弁８を機関冷却温水に切り換え燃料を析出温
度以上に加熱するのである。 That is, when the fuel temperature is below the wax precipitation temperature, the three-way valve 8 is switched to engine cooling hot water to heat the fuel above the wax precipitation temperature.
ただし、始動時や暖機中にはバツテリによつて
通電する電熱ヒータ３により燃料を加熱する。 However, during startup and warm-up, the fuel is heated by the electric heater 3 that is energized by the battery.
こうして暖機後の燃料加熱に専ら機関冷却温水
を使用するので電熱ヒーテイング時間を短縮でき
電気容量の大きなバツテリ、ジエネレータを用い
なくても済むのである。 In this way, engine cooling hot water is used exclusively to heat the fuel after warm-up, which shortens the electric heating time and eliminates the need for a battery or generator with large electrical capacity.
この結果、低温時であつても燃料が加熱される
ので燃料通路の目詰りを起すことなく、しかもエ
ンジン駆動されるバツテリジエネレータの消費電
力を節減できる。 As a result, the fuel is heated even at low temperatures, so the fuel passage does not become clogged, and the power consumption of the engine-driven battery generator can be reduced.
また燃料温度が高くなつたときには三方弁８を
切り換えて冷水を流し燃料を冷却する。 When the fuel temperature becomes high, the three-way valve 8 is switched to flow cold water to cool the fuel.
従つて燃料密度が高くなり実質燃料噴射量が増
えるので出力の向上につながる。 Therefore, the fuel density increases and the actual fuel injection amount increases, leading to an increase in output.
このとき、電熱ヒータ３は停止していることは
もちろんである。 At this time, the electric heater 3 is of course stopped.
以上のとおり、本考案によれば、燃料タンクか
ら燃料噴射ポンプに至る燃料配管の一部に、電熱
ヒータによる加熱手段と、機関冷却温水と他の冷
水とを選択的に切換可能な加熱・冷却手段とを設
けたので、低温時あるいは高温時であつても適正
な燃料を供給でき、従つて低温始動性を向上し同
時に高温時の出力アツプを図ることができるとい
う効果がある。 As described above, according to the present invention, a part of the fuel piping from the fuel tank to the fuel injection pump is provided with a heating means using an electric heater, and a heating/cooling means that can selectively switch between engine cooling hot water and other cold water. Since this means is provided, an appropriate amount of fuel can be supplied even at low or high temperatures, thereby improving low-temperature startability and at the same time increasing the output at high temperatures.
図面は本考案の実施例の概略構成図である。
１……燃料噴射ポンプ、２……燃料配管、３…
…電熱ヒータ、４……加熱・冷却手段、８……三
方弁。
The drawing is a schematic diagram of an embodiment of the present invention. 1...Fuel injection pump, 2...Fuel piping, 3...
...Electric heater, 4... Heating/cooling means, 8... Three-way valve.
Claims (1)
の途中に燃料フイルタを設けると共に、その上流
の燃料配管に始動時や暖機時に通電される電熱ヒ
ータなどによる加熱手段を設けると共に、さらに
これと直列に燃料温度に応じて、暖機後の機関冷
却温水と、該冷却温水とは別のラジエータを通過
する冷水とを選択的に切換導入して燃料を加熱・
冷却する熱交換器を備えたことを特徴とする燃料
温度調整装置。 A fuel filter is provided in the middle of the fuel pipe leading from the fuel tank to the fuel injection pump, and a heating means such as an electric heater that is energized at startup and warm-up is provided in the fuel pipe upstream of the fuel filter, and further in series with the fuel filter. Depending on the temperature, hot water for cooling the engine after warming up and cold water that passes through a separate radiator are selectively introduced to heat the fuel.
A fuel temperature adjustment device characterized by comprising a cooling heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981042686U JPS6145316Y2 (en) | 1981-03-26 | 1981-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981042686U JPS6145316Y2 (en) | 1981-03-26 | 1981-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57156069U JPS57156069U (en) | 1982-09-30 |
| JPS6145316Y2 true JPS6145316Y2 (en) | 1986-12-19 |
Family
ID=29839709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981042686U Expired JPS6145316Y2 (en) | 1981-03-26 | 1981-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6145316Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0437260Y2 (en) * | 1986-01-31 | 1992-09-02 | ||
| DE3630084A1 (en) * | 1986-09-04 | 1988-03-17 | Hengst Walter Gmbh & Co Kg | FUEL PREHEATER |
| KR20040000851A (en) * | 2002-06-26 | 2004-01-07 | 현대자동차주식회사 | Fuel temperature control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55130049U (en) * | 1979-03-09 | 1980-09-13 |
-
1981
- 1981-03-26 JP JP1981042686U patent/JPS6145316Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57156069U (en) | 1982-09-30 |
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