JPS6176751A - Intake-air heating device in internal-combustion engine - Google Patents
Intake-air heating device in internal-combustion engineInfo
- Publication number
- JPS6176751A JPS6176751A JP59196299A JP19629984A JPS6176751A JP S6176751 A JPS6176751 A JP S6176751A JP 59196299 A JP59196299 A JP 59196299A JP 19629984 A JP19629984 A JP 19629984A JP S6176751 A JPS6176751 A JP S6176751A
- Authority
- JP
- Japan
- Prior art keywords
- starter
- intake
- heating device
- air heating
- intake air
- 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
- F02M31/13—Combustion air
-
- 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)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、内燃機関の吸気加熱に用いられる吸気加熱装
置に係り、特に高性能電気ヒータを用いた吸気加熱装置
の通電制御装置に係る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an intake air heating device used for heating the intake air of an internal combustion engine, and more particularly to an energization control device for an intake air heating device using a high-performance electric heater.
従来の技術
ディービル機関の冷間始動性の改善のために、一般にイ
ンテークヒータと称されている吸気通路の途中に設けら
れた吸気加熱装置によって吸気を加熱すること、所謂ブ
レヒートを行うことが有効であることは従来より良く知
られている。このブレヒートに用いられる吸気加熱装置
は従来より種々のａ様にて提案されており、その一つと
して、正特性サーミスタ製のＰＴＣヒータの如き高性能
電気に一夕を用いたものが実開昭５７−１８２２５３号
に於て公開されている。Conventional Technology In order to improve the cold startability of diesel engines, it is effective to heat the intake air with an intake air heating device installed in the middle of the intake passage, generally called an intake heater, to perform so-called breheating. It is well known that this is the case. Various types of intake air heating devices have been proposed in the past for use in breheating, and one example is one that uses high-performance electricity such as a PTC heater made of a positive temperature coefficient thermistor. No. 57-182253.
従来一般に、ディーゼル機関の冷間始動性の改善のため
に行われるブレヒートは、その名の通り、スタータによ
るディーゼル機関の始動に先立って所定時間に亙りで行
われ、このため従来のディーゼル機関はこのブレヒート
のために始動待ち時間を必要としている。Conventionally, breheating, which is generally performed to improve the cold startability of diesel engines, is carried out for a predetermined period of time before the diesel engine is started by the starter, as the name suggests. A waiting time for starting is required due to the heat.
機関始動前に所定時間に亙っで電気ヒータに通電を行っ
てブレヒートを行う制御方法或いは制御装置は、実開昭
５７−８３４５号、実開昭５８−１６１１５７号、実開
昭５９−６４４６３号、特願昭５８−３４０７０号に於
て既に提案されている。A control method or a control device for performing breheating by energizing an electric heater for a predetermined period of time before starting the engine is disclosed in U.S. Pat. No. 57-8345, U.S. Pat. , has already been proposed in Japanese Patent Application No. 58-34070.
発明が解決しようとする問題点
ＰＴＣヒータの如き高性能電気ヒータは格子構造の如き
通気性を有する構造に構成されて吸気通路を横切って配
設されることにより比較的大きい発熱表面積をもって吸
気加熱を効果的に行い、このため上述の如き高性能電気
ヒータを吸気加熱装置として備えたディーゼル機関に於
ては、ディーゼル機関の燃焼性の改善と相俟ってプレヒ
ートが瞬間的に完了し、始動待ち時間を必要としなくな
ってきている。このような環状に於ては、スタータによ
るディーゼル機関の始動に先立って電気ヒータに通電を
行う必要がなくなり、電気ヒータはスタータスイッチが
閉じられると同時に通電されて発熱するよう構成されて
いればよい。Problems to be Solved by the Invention High-performance electric heaters such as PTC heaters are constructed with an air permeable structure such as a lattice structure and are disposed across the intake passage, thereby heating the intake air with a relatively large heat generating surface area. For this reason, in diesel engines equipped with the above-mentioned high-performance electric heater as an intake air heating device, preheating is completed instantaneously and the combustion performance of the diesel engine is improved, and the preheating is completed immediately while waiting for startup. Time is no longer needed. In such an annular configuration, there is no need to energize the electric heater before the starter starts the diesel engine, and the electric heater only needs to be configured so that it is energized and generates heat at the same time as the starter switch is closed. .
問題点を解決するための手段
本発明による内燃機関の吸気加熱装置は、電源回路中に
スタータと並列に接続された吸気加熱用電気ヒータを有
し、前記吸気加熱用電気ヒータはスタータスイッチの開
閉により通電を制御されて前記スタータスイッチが閉じ
られている間のみ通電されて発熱するよう構成されてい
ることを特徴としている。Means for Solving the Problems The intake air heating device for an internal combustion engine according to the present invention has an electric heater for heating the intake air connected in parallel with the starter in the power supply circuit, and the electric heater for heating the intake air is connected to the opening and closing of the starter switch. The starter switch is characterized in that the energization is controlled so that the starter switch is energized and generates heat only while the starter switch is closed.
発明の作用及び効果
本発明による吸気加熱装置によれば、スタータスイッチ
が閉じられると同時に吸気加熱用電気ヒータに通電が行
われてこれが発熱し、スタータスイッチが開かれると同
時に前記吸気加熱用電気ヒータに対する通電が停止され
、この通電制御が特別な制御装置を必要とすることなく
適切に行われる。Effects and Effects of the Invention According to the intake air heating device according to the present invention, the electric heater for heating the intake air is energized to generate heat at the same time as the starter switch is closed, and the electric heater for heating the intake air is turned on at the same time as the starter switch is opened. The energization is stopped, and this energization control is performed appropriately without the need for a special control device.
実施例
以下に添付の図を参照して本発明を実施例について詳細
に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail by way of embodiments with reference to the accompanying drawings.
添付の図は本発明による内燃機関の吸気加熱装置の一つ
の実施例を示している。図に於て、１はディーゼル機関
を、２は吸気マニホールドを、３は吸気加熱装置を、４
は吸気管を、５はエアクリーナを各々示している。The attached figure shows an embodiment of an intake air heating device for an internal combustion engine according to the invention. In the figure, 1 is the diesel engine, 2 is the intake manifold, 3 is the intake air heating device, and 4 is the intake manifold.
5 indicates an intake pipe, and 5 indicates an air cleaner.
吸気加熱装置３は格子構造の通気性を有するＰＴＣヒー
タ６を有しており、該ＰＴＣヒータはヒータハウジング
７内の吸気通路８を横切って設けられている。The intake air heating device 3 has a PTC heater 6 having a grid structure with ventilation, and the PTC heater 6 is provided across an intake passage 8 in a heater housing 7 .
ＰＴＣヒータ６は、バッテリ電［１０を含む電源回路中
にスタータ１１と並列に接続され、バッテリ電源１０よ
り゛電流をスタータリレースイッチ１２を経て選択的に
供給されるようになっている。The PTC heater 6 is connected in parallel with a starter 11 in a power supply circuit including a battery power supply 10, and is selectively supplied with current from the battery power supply 10 via a starter relay switch 12.
スタータリレースイッチ１２は常開型のリレースイッチ
であり、エンジンキーにより操作されるスタータスイッ
チ１３が閉じられている間のみ閉成し、開成中のみスタ
ータ１１とＰＴＣヒータ６とに通電を行うようになって
いる。The starter relay switch 12 is a normally open type relay switch, and is closed only while the starter switch 13 operated by the engine key is closed, and energizes the starter 11 and the PTC heater 6 only when it is opened. It has become.
ディーゼル機関１の始動に際してエンジンキーによって
スタータスイッチ１３が閉じられると、これに伴いスタ
ータリレースイッチ１２が閉じ、ＰＴＣヒータ６に通電
が行われて該ＰＴＣヒータが発熱作動し、これによって
プレヒートが行われると同時にスタータ１１が回転作動
してディーゼル機関１の始動が行われる。スタータ１１
によるディーゼル機関１の始動が完了することによって
エンジンキー によりスタータスイッチ１３が開かれる
と、これに伴いスタータリレースイッチ１２が聞き、Ｐ
ＴＣヒータ６に対する通電が停止されると同時にスター
タ１１に対する通電が停止される。When the starter switch 13 is closed by the engine key when starting the diesel engine 1, the starter relay switch 12 is closed accordingly, the PTC heater 6 is energized, and the PTC heater is activated to generate heat, thereby performing preheating. At the same time, the starter 11 rotates to start the diesel engine 1. Starter 11
When the starting of the diesel engine 1 is completed and the starter switch 13 is opened by the engine key, the starter relay switch 12 is activated and P is activated.
At the same time as the energization to the TC heater 6 is stopped, the energization to the starter 11 is also stopped.
本発明による吸気加熱装置に於ては、ＰＴＣヒータの如
き電気ヒータがスタータと並列に電源回路中に接続され
ることによりタイマ等を含んだ特別な制御装置を必要と
することなく電気ヒータに対する通電が適切に制御され
、吸気加熱装置の制御系の大幅な簡素化と低コスト化が
行われる。In the intake air heating device according to the present invention, an electric heater such as a PTC heater is connected in parallel with the starter in the power supply circuit, so that the electric heater can be energized without the need for a special control device including a timer or the like. is appropriately controlled, and the control system of the intake air heating device can be significantly simplified and reduced in cost.
以上に於ては、本発明を特定の実施例について詳細に説
明したが、本発明は、これに限定されるものではなく、
本発明の範囲内にて種々の実施例が可能であることは当
業者にとって明らかであろう。Although the present invention has been described in detail with respect to specific embodiments above, the present invention is not limited thereto.
It will be apparent to those skilled in the art that various embodiments are possible within the scope of the invention.
【図面の簡単な説明】
添付の図は本発明による内燃機関の吸気加熱装置の一つ
の実施例を示す概略構成図である。
１・・・ディーゼル機関、２・・・吸気マニホールド。
３・・・吸気加熱装置、４・・・吸気管、５・・・エア
クリーナ、６・・・ＰＴＣヒータ、７・・・ヒータハウ
ジング。
８・・・吸気通路、１０・・・バッテリ電源、１１・・
・スタ−タ、１２・・・スタータリレースイッチ、１３
・・・スタータスイッチBRIEF DESCRIPTION OF THE DRAWINGS The attached figure is a schematic diagram showing one embodiment of an intake air heating device for an internal combustion engine according to the present invention. 1...Diesel engine, 2...Intake manifold. 3... Intake air heating device, 4... Intake pipe, 5... Air cleaner, 6... PTC heater, 7... Heater housing. 8...Intake passage, 10...Battery power supply, 11...
・Starter, 12...Starter relay switch, 13
・・・Starter switch
Claims (1)
電気ヒータを有し、前記吸気加熱用電気ヒータはスター
タスイッチの開閉により通電を制御されて前記スタータ
スイッチが閉じられている間のみ通電されて発熱するよ
う構成されていることを特徴とする内燃機関の吸気加熱
装置。The power supply circuit has an electric heater for heating intake air connected in parallel with the starter, and the electricity supply of the electric heater for heating intake air is controlled by opening and closing of a starter switch, and is energized only while the starter switch is closed. An intake air heating device for an internal combustion engine, characterized in that it is configured to generate heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196299A JPS6176751A (en) | 1984-09-19 | 1984-09-19 | Intake-air heating device in internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196299A JPS6176751A (en) | 1984-09-19 | 1984-09-19 | Intake-air heating device in internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6176751A true JPS6176751A (en) | 1986-04-19 |
Family
ID=16355494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59196299A Pending JPS6176751A (en) | 1984-09-19 | 1984-09-19 | Intake-air heating device in internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6176751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7010800B2 (en) | 1994-12-22 | 2006-03-07 | Sony Corp | Disc cartridge having annular shaped mating projections |
-
1984
- 1984-09-19 JP JP59196299A patent/JPS6176751A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7010800B2 (en) | 1994-12-22 | 2006-03-07 | Sony Corp | Disc cartridge having annular shaped mating projections |
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