JPS5951154A - Fuel supply device for diesel engine - Google Patents
Fuel supply device for diesel engineInfo
- Publication number
- JPS5951154A JPS5951154A JP57162776A JP16277682A JPS5951154A JP S5951154 A JPS5951154 A JP S5951154A JP 57162776 A JP57162776 A JP 57162776A JP 16277682 A JP16277682 A JP 16277682A JP S5951154 A JPS5951154 A JP S5951154A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- filter
- diesel engine
- bypass passage
- fuel filter
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 102
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ディーゼルエンジンの燃料供給装置の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a fuel supply system for a diesel engine.
従来、ディーセルエンジンの燃料供給装置においては、
インジェクションポンプにより燃料を燃料パイプを通し
て燃料フィルタを介して燃料タンクから汲み出し、該イ
ンジェクションポンプにより前記燃料に高圧を与えて、
該高圧の燃料をディーゼルエンジンの各燃焼室内に燃料
噴射弁により噴射しているが、寒冷時に燃料温度が低下
すると燃料中にワックスが析出することがある。このワ
ックスのため、前記燃料フィルタが目詰りを起こし、エ
ンジンへの燃料供給不足によるエンジンの出力低下を生
ずることがあった。この対策として、前記燃料フィルタ
に加熱装置を設けて、低１１■時に燃料フィルタを加熱
するようにしたものがある。Conventionally, in diesel engine fuel supply systems,
An injection pump pumps fuel from the fuel tank through a fuel pipe and a fuel filter, and the injection pump applies high pressure to the fuel,
The high-pressure fuel is injected into each combustion chamber of a diesel engine by a fuel injection valve, but when the fuel temperature drops during cold weather, wax may precipitate in the fuel. This wax sometimes causes the fuel filter to become clogged, resulting in a reduction in engine output due to insufficient fuel supply to the engine. As a countermeasure against this problem, there is a system in which the fuel filter is provided with a heating device to heat the fuel filter when the temperature is low.
この場合において、前記した既設の燃料フィルタは、長
期にわたる車両の使用期間の間、ゴミ等による目詰りに
対して使用可能状態に保たなければならないため大容量
のものとされている。従って、上記の従来技術において
は、大きな電力を必要とし、かつ燃料フィルタが暖まる
までかなりの時間を要するという問題があった。In this case, the existing fuel filter described above has a large capacity because it must be kept in a usable state against clogging by dirt and the like during a long period of use of the vehicle. Therefore, the above-mentioned conventional technology has the problem that it requires a large amount of electric power and takes a considerable amount of time until the fuel filter warms up.
本発明の目的は、低温時、燃料中にワックスが析出した
とき、小電力で迅速にワックスを溶解させることにより
、ワックスの目詰りによるエンジンの出力低下を防止す
るようにしたディーゼルエンジンの燃料供給装置を提供
することにある。An object of the present invention is to provide a fuel supply for a diesel engine that prevents a reduction in engine output due to wax clogging by quickly melting the wax with a small amount of electric power when wax is deposited in the fuel at low temperatures. The goal is to provide equipment.
係る目的は、本発明によれば、燃料フィルタの下流側の
負圧、あるいは燃料温度を感知して、負圧が所定値以上
、あるいは燃料温度が所定値以下のときは、前記燃料フ
ィルタの上流側に設けられた電磁弁を作動させて、前記
燃料フィルタとは別の加熱装置を有する小容量の燃料フ
ィルタを経由さセで燃料を加熱、通過させるようにした
ことを特徴とするディーゼルエンジンの燃料供給装置に
よっ゛Ｃ達成される。According to the present invention, the negative pressure or fuel temperature on the downstream side of the fuel filter is sensed, and when the negative pressure is above a predetermined value or the fuel temperature is below a predetermined value, the upstream side of the fuel filter is detected. A diesel engine characterized in that the fuel is heated and passed through a small-capacity fuel filter having a heating device separate from the fuel filter by operating a solenoid valve provided on the side thereof. C is achieved by the fuel supply system.
つぎに、本発明の実施例を図面を基に詳細に説明する。Next, embodiments of the present invention will be described in detail based on the drawings.
第１図は、本発明に係るディーゼルエンジンの燃料供給
装置のシステム全体図を示す。同図において、１は燃料
タンク、２は既設の燃料フィルタ （以下、第１の燃料
フィルタと呼ぶ）、３はインジェクションボンブ、４は
エンジンを示す。FIG. 1 shows an overall system diagram of a diesel engine fuel supply device according to the present invention. In the figure, 1 is a fuel tank, 2 is an existing fuel filter (hereinafter referred to as a first fuel filter), 3 is an injection bomb, and 4 is an engine.
燃料タンク１と第１の燃料フィルタ２とインジェクショ
ンポンプ３とは燃料パイプ５で連絡されており、インジ
ェクションボンプ３とエンジン４とはデリバリパイプ６
で連絡されている。第１の燃料フィルタ２の上流側と下
流側とはバイパス通路で連絡されＣおり、該バイパス通
路７の途中には加熱装置８を有する前記第１の燃料フィ
ルタ２よりは小容量の第２の燃料フィルタ７が介在され
ている。バイパス通ＩＩ８７と燃料パイプ５の上流側の
接続点には、燃料の流れを切換える電磁ブｆｌＯが設け
られ、バイパス通路７と燃料パイプ５の下流側の接続点
の下流には、負圧あるいは、燃料温度を感知する目詰り
検知器１１が設けられている。目詰り検知器１１と加熱
装置８と電磁弁１０は、コンピュータ１３を介して電気
的に接続されており、加熱装置８と電磁弁１０とは、目
詰り検知器１１が信号を発すると、コンピュータ１３の
指令に基づいて、バッテリ１２の電力により作動するよ
うにされている。The fuel tank 1, the first fuel filter 2, and the injection pump 3 are connected through a fuel pipe 5, and the injection pump 3 and the engine 4 are connected through a delivery pipe 6.
has been contacted. The upstream side and the downstream side of the first fuel filter 2 are connected by a bypass passage C, and a second fuel filter having a smaller capacity than the first fuel filter 2 has a heating device 8 in the middle of the bypass passage 7. A fuel filter 7 is interposed. An electromagnetic valve flO for switching the flow of fuel is provided at the upstream connection point between the bypass passage II 87 and the fuel pipe 5, and a negative pressure or A clogging detector 11 is provided to sense fuel temperature. The clogging detector 11, the heating device 8, and the solenoid valve 10 are electrically connected via the computer 13, and when the clogging detector 11 issues a signal, the heating device 8 and the solenoid valve 10 13, it is operated by the power of the battery 12.
第２図は、第１図の第２の燃料フィルタ９と加熱装置８
の詳細図を示す。第２の燃料フィルタ９は、上部ケース
１４と下部ケース１５から成り、下部ケース１５の中に
は、フィルタエレメント１６がスプリング１７により固
定して配設される。加熱装置８は網状ヒータ１８から成
り、フィルタエレメント１６にはり合わせられている。FIG. 2 shows the second fuel filter 9 and heating device 8 of FIG.
A detailed diagram is shown. The second fuel filter 9 consists of an upper case 14 and a lower case 15, and a filter element 16 is fixedly disposed in the lower case 15 by a spring 17. The heating device 8 consists of a mesh heater 18, which is glued to the filter element 16.
燃料は、上部ケース１４に設けられた入口１９から入っ
て、フィルタエレメント１６を外周から中心に向けて通
過し、出口２０から流出する。２１は、網状ヒータ１８
のリード線である。Fuel enters through an inlet 19 provided in the upper case 14, passes through the filter element 16 from the outer periphery toward the center, and exits through the outlet 20. 21 is a mesh heater 18
This is the lead wire.
上記の実施例の作用を説明する。第１図におい−で、燃
料温度が常温のときは、燃料中にワックスが析出せず、
燃料は、燃料タンクｌから燃料バイゾ５を通って、第１
のｌ／３１１フイルタ２を介してインジｙ、クシ円ンボ
ンブ３に流れＣいる。燃料温度が低Ｆ Ｌ ’Ｃ１ａ料
中にソックスが析出し、第１の燃１′１フィルタ２があ
る程度目詰りを起こすと、その下流側には負圧が発生ず
る。従って、負圧あるいは、燃％’ｌ１品度を感知する
目詰り検知器１１は、信号を発し゛Ｃ，該信可信号ンピ
ュータ１３に入力される。The operation of the above embodiment will be explained. In Figure 1, when the fuel temperature is at room temperature, wax does not precipitate in the fuel;
The fuel passes from the fuel tank 1 through the fuel visor 5 to the first
It flows through the l/311 filter 2 into the cylinder y and into the comb bomb 3. When socks are deposited in the F L 'C1a material with a low fuel temperature and the first fuel 1'1 filter 2 becomes clogged to some extent, a negative pressure is generated on the downstream side thereof. Therefore, the clogging detector 11 which senses the negative pressure or the fuel quality issues a signal 'C' which is input to the reliable signal computer 13.
二１ンピプータＩ３は、電磁弁１０を燃料とワックスが
バイパス通］ｌδ７の方へ流れるように制御すると同時
に、第２の燃＊、１フィルタ９の網状ヒータ１８に通電
し°Ｃ、フィルタエレメント１６を加熱し、ワックスを
７８ Ｍさ・ピ、燃料がインジェクシコンポンブ３に流
れるよ・）にする。この場合において、第２の燃料フィ
ルタ９は、小容量であるために、小電力で、かつ短時間
にワックス溶解温度に達する。The second pump I3 controls the electromagnetic valve 10 so that the fuel and wax flow toward the bypass passage [lδ7], and at the same time energizes the mesh heater 18 of the second fuel filter 9 to set the filter element 16 to °C. Heat the wax to 78 m², allowing fuel to flow to the injector pump 3). In this case, since the second fuel filter 9 has a small capacity, it reaches the wax melting temperature with small electric power and in a short time.
なお、第２の燃料フィルタ９の加熱方法としては、」１
記方法以外に、下部ケース１５本体、あるいは、下部ケ
ース１５の外周部を加熱してもよい。In addition, as a heating method of the second fuel filter 9, "1"
In addition to the method described above, the main body of the lower case 15 or the outer peripheral portion of the lower case 15 may be heated.
以−ヒ述べたように、本発明に係るディーゼルエンジン
の燃料イノ（給装置によれば、小電力で迅速にワックス
を溶解させることができ、ワックスの目詰りによるエン
ジンの出力低下を防止することができるという効果を奏
する。As described below, the diesel engine fuel supply device according to the present invention can quickly melt wax with a small amount of electric power, and prevent a decrease in engine output due to wax clogging. It has the effect of being able to.
第１図は、本発明のディーゼルエンジンの燃料供給装置
のシステム全体図、第２図は、第１図における第２の燃
料フィルタと加熱装置の拡大図を示す。
１−−−燃料タンク
２−−一第１の燃料フィルタ
３−−−−インジェクシ田ンポンプ
４−−−−エンジン
５−、−、、−燃料バイブ
７−＝−バイパス通路
８−＝−加熱装置
９−−−−第２の燃料フィルタ
１０−−−−−一電磁弁
１１−−−−目詰り検知器
出″：１人 トヨタ白湯３’ｌ’、）：人会社第１図
第２図FIG. 1 shows an overall system diagram of a fuel supply device for a diesel engine according to the present invention, and FIG. 2 shows an enlarged view of a second fuel filter and a heating device in FIG. 1. 1---Fuel tank 2---1 First fuel filter 3---Injector pump 4---Engine 5---Fuel vibe 7---Bypass passage 8---Heating device 9----Second fuel filter 10-----One solenoid valve 11---Clogging detector output'': 1 person Toyota hot water 3'l'): Person Company Figure 1 Figure 2
Claims (2)
イプを通して第１の燃料フィルタを介して燃料タンクか
ら汲み出し、該インジェクタ９ンポンプにより前記燃料
に高圧を与えて、該高圧の燃料をディーゼルエンジンの
各燃焼室内に燃料噴射弁により噴射するディーゼルエン
ジンの燃料供給装置においζ、前記第１の燃料フィルタ
の上流側と下流側とを連絡するバイパス通路を設け、該
バイパス通１１Ｒの途中にｌよ加熱装置を有する前記第
１の燃料フィルタよりは小容量の第２の燃料フィルタを
介在さ−Ｕ、前記バイパス通路と前記燃料パイプの」−
流側の接続点には燃料の流れを切換える電磁ブｒを設ｉ
Ｊ、前記第１の燃料フィルタの下流側の燃料パイプには
負圧を感知する目詰り検知器を設けて、前記負圧が所定
値以上のときは、該目詰り検知器は信号を発して、該信
号はコンピッ９−夕に入力され、該コンピュータは、前
記電磁弁と前記加熱装置とを制御して、燃料を前記バイ
パス通路の方向に切換え、かつ、前記第２の燃料フィル
タを加熱するようにしたことを特徴とするディーゼルエ
ンジンの燃料供給装置。(1) The injection pump pumps fuel from the fuel tank through the fuel pipe and the first fuel filter, and the injector pump applies high pressure to the fuel, and the high-pressure fuel is injected into each combustion chamber of the diesel engine. In a fuel supply system for a diesel engine that injects fuel by an injection valve, a bypass passage connecting the upstream side and the downstream side of the first fuel filter is provided, and a heating device is provided in the middle of the bypass passage 11R. A second fuel filter having a smaller capacity than the first fuel filter is interposed between the bypass passage and the fuel pipe.
An electromagnetic brake is installed at the connection point on the flow side to switch the flow of fuel.
J. A clogging detector that senses negative pressure is provided in the fuel pipe on the downstream side of the first fuel filter, and when the negative pressure is equal to or higher than a predetermined value, the clogging detector emits a signal. , the signal is input to a computer 9-1, and the computer controls the solenoid valve and the heating device to switch fuel in the direction of the bypass passage and heat the second fuel filter. A fuel supply device for a diesel engine, characterized in that:
イプを通して第１の燃料フィルタを介して燃料タンクか
ら汲み出し、該インジェクションポンプにより前記燃料
に高圧を与えて、該高圧の燃料をディーゼルエンジンの
各燃焼室内に燃料噴射弁により噴射するディーゼルエン
ジンの燃料供給装置において、前記第１の燃料フィルタ
の」二流側と下流側とを連絡するバイパス通路を設け１
、該バイパス通路の途中には加熱装置を有する前記第１
の産科フィルタよりは小容量の第２の燃料フィルタを介
在さ−υ、ｔ３’ｉＪ記バイパス通路と前記燃料パイプ
のに流側の接続点には燃料の流れを切換える電磁弁を設
け、前記第１の燃料フィルタの下流側の燃料パイプには
燃料温度を感知する目詰り検知器を設けて、前記燃料温
度が所定値以下のときは、該目詰り検知器は信号を発し
ζ、該信号はコンピュータに人力され、該二１ンビュー
タは、前記電磁弁と前記加熱装置とを制御して、燃料を
前記バイパス通１１δの方向に切換え、かつ、前記第２
の燃料フィルタを加熱するようにしたことを特徴とする
ディーゼルエンジンの燃料供給装置。(2) The injection pump pumps fuel from the fuel tank through the fuel pipe and the first fuel filter, the injection pump applies high pressure to the fuel, and the high-pressure fuel is injected into each combustion chamber of the diesel engine. In a fuel supply device for a diesel engine that injects fuel using a valve, a bypass passage is provided that connects a second flow side and a downstream side of the first fuel filter.
, a heating device is provided in the middle of the bypass passage.
A second fuel filter having a smaller capacity than the obstetric filter is interposed, and a solenoid valve for switching the flow of fuel is provided at the connection point on the flow side between the bypass passage and the fuel pipe. A clogging detector for sensing fuel temperature is provided in the fuel pipe downstream of the fuel filter 1, and when the fuel temperature is below a predetermined value, the clogging detector emits a signal ζ, and the signal is Manually operated by a computer, the 21-turbator controls the solenoid valve and the heating device to switch the fuel in the direction of the bypass passage 11δ, and
A fuel supply device for a diesel engine, characterized in that the fuel filter is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162776A JPS5951154A (en) | 1982-09-17 | 1982-09-17 | Fuel supply device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162776A JPS5951154A (en) | 1982-09-17 | 1982-09-17 | Fuel supply device for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5951154A true JPS5951154A (en) | 1984-03-24 |
Family
ID=15760999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57162776A Pending JPS5951154A (en) | 1982-09-17 | 1982-09-17 | Fuel supply device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951154A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2603950A1 (en) * | 1986-09-17 | 1988-03-18 | Daimler Benz Ag | LOW PRESSURE FUEL CIRCUIT WITH FUEL PREHEATING FOR AN INTERNAL COMBUSTION, INJECTION AND AIR COMPRESSION ENGINE, IN PARTICULAR FOR UTILITY VEHICLES |
| FR2768776A1 (en) * | 1997-09-25 | 1999-03-26 | Marwal Systems | PUMPING DEVICE FOR A GASOIL TANK ON A MOTOR VEHICLE |
| KR20020037465A (en) * | 2000-11-14 | 2002-05-22 | 류정열 | Fuel Heating Equipment of Diesel Engine |
| KR20020038315A (en) * | 2000-11-17 | 2002-05-23 | 류정열 | A fuel pre-heating apparatus for a diesel car |
| EP1128058A3 (en) * | 2000-02-28 | 2002-09-04 | MAHLE Filtersysteme GmbH | Method of operating a diesel fuel filter of a vehicle engine and filter device |
| JP2007198133A (en) * | 2006-01-23 | 2007-08-09 | Cosmo Oil Co Ltd | Fuel supply device |
| JP2014234774A (en) * | 2013-06-03 | 2014-12-15 | 京三電機株式会社 | Diesel fuel supply device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347421B2 (en) * | 1977-05-16 | 1978-12-21 | ||
| JPS5517904B2 (en) * | 1973-05-31 | 1980-05-15 | ||
| JPS573861B2 (en) * | 1979-07-09 | 1982-01-23 |
-
1982
- 1982-09-17 JP JP57162776A patent/JPS5951154A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517904B2 (en) * | 1973-05-31 | 1980-05-15 | ||
| JPS5347421B2 (en) * | 1977-05-16 | 1978-12-21 | ||
| JPS573861B2 (en) * | 1979-07-09 | 1982-01-23 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2603950A1 (en) * | 1986-09-17 | 1988-03-18 | Daimler Benz Ag | LOW PRESSURE FUEL CIRCUIT WITH FUEL PREHEATING FOR AN INTERNAL COMBUSTION, INJECTION AND AIR COMPRESSION ENGINE, IN PARTICULAR FOR UTILITY VEHICLES |
| FR2768776A1 (en) * | 1997-09-25 | 1999-03-26 | Marwal Systems | PUMPING DEVICE FOR A GASOIL TANK ON A MOTOR VEHICLE |
| EP0905370A1 (en) * | 1997-09-25 | 1999-03-31 | Marwal Systems | Pumping device for diesel fuel tank in an automotive vehicle |
| EP1128058A3 (en) * | 2000-02-28 | 2002-09-04 | MAHLE Filtersysteme GmbH | Method of operating a diesel fuel filter of a vehicle engine and filter device |
| KR20020037465A (en) * | 2000-11-14 | 2002-05-22 | 류정열 | Fuel Heating Equipment of Diesel Engine |
| KR20020038315A (en) * | 2000-11-17 | 2002-05-23 | 류정열 | A fuel pre-heating apparatus for a diesel car |
| JP2007198133A (en) * | 2006-01-23 | 2007-08-09 | Cosmo Oil Co Ltd | Fuel supply device |
| JP2014234774A (en) * | 2013-06-03 | 2014-12-15 | 京三電機株式会社 | Diesel fuel supply device |
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