JPS59218355A - Fuel heating device - Google Patents
Fuel heating deviceInfo
- Publication number
- JPS59218355A JPS59218355A JP58093013A JP9301383A JPS59218355A JP S59218355 A JPS59218355 A JP S59218355A JP 58093013 A JP58093013 A JP 58093013A JP 9301383 A JP9301383 A JP 9301383A JP S59218355 A JPS59218355 A JP S59218355A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- heater
- ptc heater
- filter
- heating device
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はディーゼル車用の燃料加熱装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fuel heating device for a diesel vehicle.
従来、ディービル車の燃料である軽油は一５℃以下の低
温域になると、その重質成分がワックス状になり、凝固
しはじめる。Conventionally, when the light oil used as fuel for diesel cars reaches a low temperature of -5 degrees Celsius or lower, its heavy components become wax-like and begin to solidify.
従って、ワックス状になった燃料は燃料フィルタを目詰
りさせることになり、機関不調等の不具合を生じる。Therefore, the waxy fuel clogs the fuel filter, causing problems such as engine malfunction.
そこで、本発明は燃料フィルタに至る燃料を直接に加熱
することにより、燃亨１のソックス化を防ぐようにした
ものである。Therefore, the present invention is designed to prevent the fuel 1 from becoming socked by directly heating the fuel that reaches the fuel filter.
以下本発明を具体的実施例により詳細に説明する。ｍ１
図において、ヒータ装ｒｊｌは燃料フィルタ３の燃料導
入部３ａに形成されたネジ部３Ｃに金属パツキン２１を
介して固定されている。ヒータ装置ｌはハウジング８と
ハウジング１０とを備え、両ハウジング８．１０は弾性
を有した金属パツキン１１を介して図示していない３本
のボルトにより、互いに締付せ固定されている。ハウジ
ング８には燃料タンクに導管を介して接続される燃料導
入部６が設けである。両ハウジング８、ｌＯにより形成
された空間内には正の抵抗温度係数を有したセラミック
抵抗発熱体（１） Ｔ Ｃヒータ）１３が配設されてい
る。このＰＴＣヒータは両面に図示しない薄膜状の通電
用電極が形成しである。The present invention will be explained in detail below using specific examples. m1
In the figure, the heater device rjl is fixed to a threaded portion 3C formed in the fuel introduction portion 3a of the fuel filter 3 via a metal packing 21. The heater device 1 includes a housing 8 and a housing 10, and both housings 8 and 10 are fastened to each other by three bolts (not shown) via an elastic metal packing 11. The housing 8 is provided with a fuel inlet 6 that is connected to the fuel tank via a conduit. A ceramic resistance heating element (1) (TC heater) 13 having a positive temperature coefficient of resistance is disposed within the space formed by both the housings 8 and 1O. This PTC heater has thin film-like current-carrying electrodes (not shown) formed on both sides.
マタ、このＰＴＣヒ−９１３は２枚アリ、ｍ３図の如く
複数の貫通孔２０を有したハニカム形状をしている。２
枚のＰＴＣヒータ１３の間には、リード線１５を絞めに
より保持したターミナル１６を有する波形スプリング１
４が挿入され、Ｐ′ｒＣヒータ１３を弾性的に側方に押
圧している。スプリング１４およびＰＴＣヒータ１３の
外周とハウジング８との間には樹脂製のカラー１２が配
設され、Ｐ Ｔ Ｃヒータ１３の保護と電気箱＃、１機
能を果している。更に、リード線１５の取出部には樹脂
１７を充填し、更にゴム製のグし１メｌ−，１Ｂにより
燃料が外部に洩れるのを防止している。Actually, this PTC Hi-913 has two dovetails, and has a honeycomb shape with a plurality of through holes 20 as shown in Fig. M3. 2
Between the two PTC heaters 13 is a wave spring 1 having a terminal 16 holding a lead wire 15 by tightening.
4 is inserted and elastically presses the P'rC heater 13 laterally. A resin collar 12 is disposed between the spring 14 and the outer periphery of the PTC heater 13 and the housing 8, and has the functions of protecting the PTC heater 13 and electrical box #1. Furthermore, the outlet of the lead wire 15 is filled with resin 17, and furthermore, rubber seals 1M and 1B are used to prevent fuel from leaking to the outside.
電気回路的には第６図に示す如く、リレー３０にリード
スイッチとサーモフェライトを組合せた思度センサ３１
が直列接続しである。ごのセンサ３１は、前記燃料ソイ
ルタ３の一部に取付け“Ｃあっ°Ｃ１その燃料温度を測
定するものである。リレー３０の接点に前記ＰＴＣヒー
タ１３が接続し“Ｃあり、前記リレー３０はｐ ”ｒ
ｃピーク１３に瞬間的に１５〜３０Ａの入電？Ｑが流れ
るためそれに見合った大容量タイプとなっている。なお
、第６図中、３２はセンサ３１の接聞保護回路、３３は
機関を作動さ・Ｕるためのいわゆるキースイッチ、３４
は電源（バッテリ）３５はヒュースである。第５図にお
いて、２は燃料タンク、９は導＋Ｉｆｆ、４は燃料ポン
プ、５はディーゼル機関を示している。In terms of the electric circuit, as shown in FIG. 6, there is a thought sensor 31 that combines a relay 30, a reed switch, and a thermoferrite.
are connected in series. The sensor 31 is attached to a part of the fuel soilter 3 and measures the fuel temperature.The PTC heater 13 is connected to the contact point of the relay 30. p”r
15-30A instantaneous incoming power at c peak 13? Since Q flows, it is a large capacity type commensurate with that. In addition, in FIG. 6, 32 is an interference protection circuit for the sensor 31, 33 is a so-called key switch for operating the engine, and 34 is a so-called key switch for operating the engine.
The power source (battery) 35 is a fuse. In FIG. 5, 2 is a fuel tank, 9 is a conductor +Iff, 4 is a fuel pump, and 5 is a diesel engine.
上記構成の作用を説明する。まずエンジンキースイッチ
３３を閉じてディービル機関５を作動させる。そして、
温度センサ３１に、Ｉ、り検出した燃料フィルタ３内の
燃料温度が例えば−５°Ｃより低い場合には、リレー３
０に電流が流れてリレー接点が閉じ、Ｐ”ｌ’Ｃヒータ
１３に通電され、Ｐ ｉ” Ｃヒータ１３が発熱する。The operation of the above configuration will be explained. First, the engine key switch 33 is closed to operate the diesel engine 5. and,
If the temperature of the fuel in the fuel filter 3 detected by the temperature sensor 31 is lower than -5°C, the relay 3
0, the relay contact closes, the P"l'C heater 13 is energized, and the P i"C heater 13 generates heat.
この発熱により、第５図において、燃料導管９からヒー
タ１の燃料導入部６に流入した燃料はＰ Ｔ” Ｃヒー
タ１３に直接に接触し、効率Ｊ−＜加熱される。加熱さ
れた燃料は１〕′Ｉ’ Ｃヒータ１３の複数の貫通孔２
０を通って、再びもう一方のＰＴＣヒータ１３により加
熱され、−５’ｃ以上に昇温し、燃料流出部７からフィ
ルタ３内に流入していく。燃料温度が（［５い時とには
ワックス状になった燃料がフィルタ炉材３ｂ（第１図）
に詰り、炉材通路を閉塞しててまい、燃料供給が停止し
てしまう。しかし、燃料温が十分昇温することにより炉
材３ｂが閉塞することなく機関を良好に運転することが
可能になるものである。Due to this heat generation, as shown in FIG. 5, the fuel flowing from the fuel conduit 9 into the fuel introduction part 6 of the heater 1 comes into direct contact with the P T''C heater 13 and is heated with efficiency J-<. 1] Plural through holes 2 of 'I' C heater 13
0, the fuel is heated again by the other PTC heater 13, the temperature rises to -5'c or more, and the fuel flows into the filter 3 from the fuel outlet 7. When the fuel temperature is 5, the waxy fuel flows into the filter furnace material 3b (Fig. 1).
The fuel becomes clogged, blocking the furnace material passageway and cutting off the fuel supply. However, if the fuel temperature rises sufficiently, the engine can be operated satisfactorily without clogging the furnace material 3b.
なお、、ｐＴｃヒータ１３は前述したように、自己温度
制御型のものなので、燃料が必要以上に加熱されること
はなく安全である。また、ハ度１！ンサ３１により検出
した燃料の温度が所定値よりｉ！’＋ｉい場合にはリレ
ー３０に電流が流れないから、）） ｉ’Ｃヒータ１３
には通電されない。Note that, as described above, the pTc heater 13 is of a self-temperature control type, so it is safe because the fuel is not heated more than necessary. Also, 1 degree! The temperature of the fuel detected by the sensor 31 is lower than the predetermined value i! Since no current flows to the relay 30 when '+i' is negative,)) i'C heater 13
is not energized.
第７図は本発明の他の実施例を示すものである。FIG. 7 shows another embodiment of the invention.
この実施例ではＩ） ｉ’ Ｃヒータが１枚だ番ノであ
り、形状は前述の実施例と同じく複数の貫通孔を有した
円板形状をしている。波形スプリング１４がプラス電極
となり、ハウジング８がマイナス電極となっている。In this embodiment, there is only one I) i'C heater, and the shape is a disk having a plurality of through holes as in the previous embodiment. The wave spring 14 serves as a positive electrode, and the housing 8 serves as a negative electrode.
なお、前述の実施例においては燃オ′１温度を検出する
センサを川したが、センサとして、フィルタ３の炉材３
ｂがある程度の目詰りした状態を検出して動作さ・Ｕる
負圧センサを用いてもよい。In addition, in the above-mentioned embodiment, the sensor for detecting the temperature of the combustion engine '1 was used, but the sensor may also be used to detect the furnace material 3 of the filter 3.
A negative pressure sensor may be used that is activated by detecting a state in which the air conditioner b is clogged to some extent.
以」二述べたごとく、本発明によれば、燃料を直接に加
熱することができ、従って非常に熱効率がよいという効
果がある。As described above, according to the present invention, the fuel can be directly heated, and therefore, there is an effect that the heat efficiency is very high.
第１図は本発明装置の一実施例を示す断面図、第２図は
第１図の八−Ａ断面図、第３図は第１図におけるＰ Ｔ
Ｃヒータを示す♀１視図、第４図は第１図における波
形スプリングを示す斜視図、第５図は第１図の装置を用
いた燃料系統図、第６図は第１図の装置を用いた通電回
路図、第７図は本発明装置の他の実施例を示す断面図で
ある。
３・・・燃料フィルタ、３ａ・・・燃料導入部、８．
１０・・・ハウジング、１３・・・）） ′Ｉ″Ｃヒー
ク。
代理人弁理士 岡 部 隆
資１１ 図
ｆｆ！７図FIG. 1 is a sectional view showing one embodiment of the device of the present invention, FIG. 2 is a sectional view taken along line 8-A in FIG. 1, and FIG.
♀1 perspective view showing the C heater, Fig. 4 is a perspective view showing the wave spring in Fig. 1, Fig. 5 is a fuel system diagram using the device shown in Fig. 1, and Fig. 6 is a diagram showing the device shown in Fig. 1. FIG. 7 is a sectional view showing another embodiment of the device of the present invention. 3... Fuel filter, 3a... Fuel introduction part, 8.
10...Housing, 13...)) 'I''C Heak. Agent Patent Attorney Takashi Okabe 11 Figure ff!7 Figure
Claims (1)
付ハウジングの内部に収容し、このハウジングを燃料フ
ィルタの燃料導入部に取付けたことを特徴とする燃料加
熱装置。A fuel heating device characterized in that a honeycomb-shaped PTC heater with a large number of through holes is housed inside a mounting housing, and the housing is attached to a fuel introduction part of a fuel filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093013A JPS59218355A (en) | 1983-05-25 | 1983-05-25 | Fuel heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093013A JPS59218355A (en) | 1983-05-25 | 1983-05-25 | Fuel heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59218355A true JPS59218355A (en) | 1984-12-08 |
Family
ID=14070549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58093013A Pending JPS59218355A (en) | 1983-05-25 | 1983-05-25 | Fuel heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59218355A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61130757U (en) * | 1985-02-01 | 1986-08-15 | ||
| JPH048757U (en) * | 1990-05-11 | 1992-01-27 | ||
| US6402943B1 (en) * | 1999-03-18 | 2002-06-11 | David & Baader Dbk | Diesel filter system |
| AT502873B1 (en) * | 2006-11-30 | 2008-05-15 | Avl List Gmbh | PREHEATING DEVICE FOR A FLOWING MEDIUM |
-
1983
- 1983-05-25 JP JP58093013A patent/JPS59218355A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61130757U (en) * | 1985-02-01 | 1986-08-15 | ||
| JPH048757U (en) * | 1990-05-11 | 1992-01-27 | ||
| US6402943B1 (en) * | 1999-03-18 | 2002-06-11 | David & Baader Dbk | Diesel filter system |
| AT502873B1 (en) * | 2006-11-30 | 2008-05-15 | Avl List Gmbh | PREHEATING DEVICE FOR A FLOWING MEDIUM |
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