JP2000297622A - Oil temperature control device for internal combustion engine - Google Patents
Oil temperature control device for internal combustion engineInfo
- Publication number
- JP2000297622A JP2000297622A JP11108706A JP10870699A JP2000297622A JP 2000297622 A JP2000297622 A JP 2000297622A JP 11108706 A JP11108706 A JP 11108706A JP 10870699 A JP10870699 A JP 10870699A JP 2000297622 A JP2000297622 A JP 2000297622A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- combustion engine
- internal combustion
- oil
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内燃機関を潤滑系
の各部位に供給する潤滑油の温度を制御する内燃機関用
油温制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil temperature control device for an internal combustion engine for controlling the temperature of lubricating oil supplied to various parts of a lubrication system for the internal combustion engine.
【０００２】[0002]
【従来の技術】従来、内燃機関における、特に、冷間時
の始動性を安定させたいという要望がある。これは、内
燃機関の冷間始動時で油温が低いと潤滑油の粘性が高く
オイルポンプや潤滑系の各部位における摩擦力が大きく
なり燃費の悪化を招いたり摺動部の摩耗を早めたりする
からである。これに対処するため、内燃機関を潤滑する
潤滑油をその始動時に加熱して供給することが考えられ
る。即ち、内燃機関の冷間時の始動性を向上するには、
内燃機関の潤滑系に供給される潤滑油を暖めることが有
効であり、これに関連する種々のシステムが提案されて
いる。2. Description of the Related Art Heretofore, there has been a demand for stabilizing the startability of an internal combustion engine, particularly when it is cold. This is because when the oil temperature is low at the time of cold start of the internal combustion engine, the viscosity of the lubricating oil is high and the frictional force in each part of the oil pump and the lubrication system increases, leading to deterioration of fuel efficiency and accelerated wear of sliding parts. Because you do. In order to cope with this, it is conceivable that lubricating oil for lubricating the internal combustion engine is heated and supplied at the time of startup. That is, in order to improve the cold startability of the internal combustion engine,
It is effective to warm the lubricating oil supplied to the lubrication system of the internal combustion engine, and various systems related to this have been proposed.
【０００３】[0003]
【発明が解決しようとする課題】ところが、内燃機関が
停止状態となると潤滑油供給経路の末端では潤滑油の抜
けが起こり、内燃機関の冷間時のように所定期間停止状
態にあったのちでは、始動時に必ずしも潤滑油が存在し
ていないという状況が発生することが知られている。こ
のため、潤滑油を始動時に加熱するにしても、潤滑油が
確実に存在している部位を加熱することが肝要である。
しかし、前述の要望を満足させるような内燃機関用油温
制御装置は未だなく、内燃機関の冷間時に安定した始動
性を得ることは無理であった。However, when the internal combustion engine is stopped, the lubricating oil escapes at the end of the lubricating oil supply path, and after the internal combustion engine has been stopped for a predetermined period of time, such as when the internal combustion engine is cold. It is known that a situation in which lubricating oil is not always present at the time of starting occurs. For this reason, even if the lubricating oil is heated at the time of starting, it is important to surely heat the portion where the lubricating oil is present.
However, there has not yet been an oil temperature control device for an internal combustion engine that satisfies the above demand, and it has been impossible to obtain a stable startability when the internal combustion engine is cold.
【０００４】そこで、この発明はかかる不具合を解決す
るためになされたもので、内燃機関の冷間時であっても
常に安定した始動性を得ることが可能な内燃機関用油温
制御装置の提供を課題としている。Accordingly, the present invention has been made to solve such a problem, and provides an oil temperature control device for an internal combustion engine capable of always obtaining a stable startability even when the internal combustion engine is cold. Is an issue.
【０００５】[0005]
【課題を解決するための手段】請求項１の内燃機関用油
温制御装置によれば、内燃機関の摺動部へ潤滑油を供給
する潤滑油供給経路内で摺動部に近接した位置にある潤
滑油が確実に貯留されている部位の少なくとも下流側の
潤滑油加熱手段で、内燃機関の始動時に潤滑油が直接、
加熱されることでその粘性が効率良く低下され、内燃機
関における摩擦馬力損失の増大による出力低下を防止す
ることができる。According to the first aspect of the present invention, the oil temperature control device for an internal combustion engine is provided at a position close to the sliding portion in a lubricating oil supply path for supplying lubricating oil to the sliding portion of the internal combustion engine. Lubricating oil heating means at least on the downstream side of a portion where certain lubricating oil is reliably stored, and when starting the internal combustion engine, the lubricating oil is directly
By heating, the viscosity is efficiently reduced, and a decrease in output due to an increase in friction horsepower loss in the internal combustion engine can be prevented.
【０００６】請求項２の内燃機関用油温制御装置では、
潤滑油加熱手段がオイルフィルタに隣接して配設されて
おり、潤滑油供給経路途中のオイルフィルタには内燃機
関の始動時に確実に潤滑油が貯留されているため、潤滑
油を効率良く加熱昇温させ内燃機関の摺動部へ供給させ
ることができる。[0006] In the oil temperature control device for an internal combustion engine according to claim 2,
The lubricating oil heating means is disposed adjacent to the oil filter, and the lubricating oil is stored in the oil filter in the lubricating oil supply path reliably when the internal combustion engine is started. It can be heated and supplied to the sliding part of the internal combustion engine.
【０００７】請求項３の内燃機関用油温制御装置によれ
ば、内燃機関の摺動部へ潤滑油を供給する潤滑油供給経
路途中で潤滑油を濾過するオイルフィルタに隣接して潤
滑油冷却手段と潤滑油を直接、加熱する潤滑油加熱手段
とが併設されている。このため、内燃機関の始動時に潤
滑油が潤滑油加熱手段にて直接、加熱されることでその
粘性が効率良く低下され、また、潤滑油冷却手段にて潤
滑油の極端な温度上昇が抑止され、内燃機関における摩
擦馬力損失の増大による出力低下を防止することができ
る。According to the third aspect of the present invention, the lubricating oil is cooled adjacent to the oil filter that filters the lubricating oil in the middle of the lubricating oil supply path that supplies the lubricating oil to the sliding portion of the internal combustion engine. The means and the lubricating oil heating means for directly heating the lubricating oil are provided side by side. For this reason, when the internal combustion engine is started, the lubricating oil is directly heated by the lubricating oil heating means so that the viscosity is efficiently reduced, and the lubricating oil cooling means suppresses an extreme temperature rise of the lubricating oil. Further, it is possible to prevent a decrease in output due to an increase in friction horsepower loss in the internal combustion engine.
【０００８】請求項４の内燃機関用油温制御装置では、
潤滑油加熱手段が潤滑油冷却手段の内部または外部に配
設されており、内燃機関の冷間時においては摺動部へ供
給される潤滑油を効率良く加熱昇温させることで始動性
が向上されると共に、潤滑油冷却手段にて潤滑油の極端
な温度上昇が抑止されることで安定性が向上される。According to a fourth aspect of the present invention, there is provided an oil temperature control device for an internal combustion engine.
The lubricating oil heating means is arranged inside or outside the lubricating oil cooling means. When the internal combustion engine is cold, the lubricating oil supplied to the sliding part is efficiently heated and heated to improve the startability. At the same time, the stability of the lubricating oil is improved by preventing the lubricating oil cooling unit from excessively increasing the temperature of the lubricating oil.
【０００９】請求項５の内燃機関用油温制御装置によれ
ば、潤滑油加熱手段の直後の下流側の潤滑油の温度が内
燃機関の始動時、油温センサによって検出され、潤滑油
の温度が第１の所定値より低いときには潤滑油加熱手段
で加熱開始され、油温センサで検出される潤滑油の温度
が第２の所定値より高くなると加熱終了され必要以上の
加熱昇温を行わないようにされる。つまり、油温センサ
で検出される潤滑油の温度に応じて加熱制御され不必要
な加熱昇温を行わないようにされる。これにより、内燃
機関の冷間時における各摺動部へ供給される潤滑油の温
度が素早く昇温され始動性が向上されると共に、燃料・
バッテリ電力等の無駄な消費を抑えることができる。According to the oil temperature control device for an internal combustion engine of claim 5, the temperature of the lubricating oil immediately downstream of the lubricating oil heating means is detected by the oil temperature sensor when the internal combustion engine is started, and the temperature of the lubricating oil is determined. When the temperature is lower than the first predetermined value, the heating is started by the lubricating oil heating means, and when the temperature of the lubricating oil detected by the oil temperature sensor becomes higher than the second predetermined value, the heating is ended and the heating temperature is not increased more than necessary. To be. That is, the heating is controlled in accordance with the temperature of the lubricating oil detected by the oil temperature sensor so that unnecessary heating is not performed. As a result, the temperature of the lubricating oil supplied to each sliding portion when the internal combustion engine is cold is quickly raised to improve startability,
Useless consumption of battery power and the like can be suppressed.
【００１０】請求項６の内燃機関用油温制御装置によれ
ば、タイマ手段で潤滑油加熱手段による内燃機関の始動
時の加熱開始からの加熱期間が監視され、その加熱期間
が経過すると加熱終了され必要以上の加熱昇温を行わな
いようにされる。これにより、内燃機関の冷間時におけ
る摺動部へ供給される潤滑油の温度が素早く昇温され始
動性が向上されると共に、燃料やバッテリ電力等の無駄
な消費を抑えることができる。According to the oil temperature control device for an internal combustion engine of the present invention, the timer means monitors the heating period from the start of heating of the internal combustion engine by the lubricating oil heating means at the start of heating, and when the heating period elapses, the heating ends. Then, the temperature is not increased more than necessary. As a result, the temperature of the lubricating oil supplied to the sliding portion when the internal combustion engine is cold can be quickly raised to improve startability, and wasteful consumption of fuel, battery power, and the like can be suppressed.
【００１１】請求項７の内燃機関用油温制御装置では、
潤滑油加熱手段がＰＴＣサーミスタを用いており構造が
簡単で安価であり、昇温特性に優れた加熱システムが構
築できるという効果が得られる。[0011] In the oil temperature control device for an internal combustion engine according to claim 7,
Since the lubricating oil heating means uses a PTC thermistor, the structure is simple and inexpensive, and an effect that a heating system excellent in temperature rising characteristics can be constructed can be obtained.
【００１２】請求項８の内燃機関用油温制御装置では、
潤滑油加熱手段が誘導加熱機構を有しており、潤滑油の
流量が多くても昇温特性に優れた加熱システムが構築で
きるという効果が得られる。In the oil temperature control device for an internal combustion engine according to claim 8,
Since the lubricating oil heating means has an induction heating mechanism, an effect that a heating system having excellent temperature raising characteristics can be constructed even when the flow rate of the lubricating oil is large is obtained.
【００１３】請求項９の内燃機関用油温制御装置では、
潤滑油加熱手段が金属グロープラグ用素子を有してお
り、潤滑油に対する速熱性に優れた加熱システムが構築
できるという効果が得られる。According to a ninth aspect of the present invention, there is provided an oil temperature control device for an internal combustion engine.
Since the lubricating oil heating means has the element for the metal glow plug, an effect is obtained that a heating system excellent in the rapid heat property to the lubricating oil can be constructed.
【００１４】請求項１０の内燃機関用油温制御装置で
は、潤滑油加熱手段がセラミックグロープラグ用素子を
有しており、潤滑油に対する速熱性に優れた加熱システ
ムが構築できるという効果が得られる。In the oil temperature control device for an internal combustion engine according to the tenth aspect, the lubricating oil heating means has the element for the ceramic glow plug, and an effect that a heating system excellent in quick heating property to the lubricating oil can be constructed can be obtained. .
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施の形態を実施
例に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples.
【００１６】〈実施例１〉図１は本発明の実施の形態の
第１実施例にかかる内燃機関用油温制御装置が適用され
た内燃機関の全体構成を示す概略図である。Embodiment 1 FIG. 1 is a schematic diagram showing an entire configuration of an internal combustion engine to which an oil temperature control device for an internal combustion engine according to a first embodiment of the present invention is applied.
【００１７】図１において、内燃機関１００のクランク
シャフト１１、クランクピン１２等の各摺動部には潤滑
油が供給されている。この潤滑油はオイルパン２０内に
貯留されており、ストレーナ２１を介してオイルポンプ
３０により汲上げられ潤滑油供給経路４０を通って供給
される。この潤滑油が通る潤滑油供給経路４０途中に
は、周知の構成からなるスピンオン型オイルフィルタ５
０が後述の潤滑油加熱部６０を介して液密に装着されて
いる。そして、オイルフィルタ５０及び潤滑油加熱部６
０の下流側には、潤滑油供給経路４０を流れる潤滑油の
温度を検出する油温センサ４１が配設されている。In FIG. 1, lubricating oil is supplied to sliding parts such as a crankshaft 11 and a crankpin 12 of an internal combustion engine 100. The lubricating oil is stored in an oil pan 20, pumped up by an oil pump 30 via a strainer 21, and supplied through a lubricating oil supply path 40. In the middle of the lubricating oil supply path 40 through which the lubricating oil passes, a spin-on type oil filter
0 is mounted in a liquid-tight manner via a lubricating oil heating unit 60 described later. The oil filter 50 and the lubricating oil heating unit 6
An oil temperature sensor 41 that detects the temperature of the lubricating oil flowing through the lubricating oil supply path 40 is disposed downstream of the oil temperature sensor 0.
【００１８】次に、本実施例の潤滑油加熱部６０の要部
構成について図２及び図３の断面図を参照して説明す
る。なお、図２は内燃機関１００のシリンダブロック１
０１及びオイルフィルタ５０を含む潤滑油加熱部６０の
断面図であり、図３は図２のＡ−Ａ線に沿う断面図であ
る。Next, the essential configuration of the lubricating oil heating section 60 of the present embodiment will be described with reference to the sectional views of FIGS. 2 shows the cylinder block 1 of the internal combustion engine 100.
FIG. 3 is a cross-sectional view of a lubricating oil heating unit 60 including an oil filter 01 and an oil filter 50, and FIG. 3 is a cross-sectional view taken along line AA of FIG.
【００１９】図２及び図３に示すように、潤滑油加熱部
６０は内燃機関１００のシリンダブロック１０１の取付
座１０１ａとオイルフィルタ５０との間に配設されてい
る。この潤滑油加熱部６０はアルミダイカスト製でオイ
ルフィルタ５０とほぼ同径からなる円柱状の基台６１に
キャップ部材６５が螺合され構成され、その内部に平板
環状のＰＴＣサーミスタ（Thermally Sensitive Resist
or）７０が収容されている。そして、潤滑油加熱部６０
には、潤滑油供給経路４０からの潤滑油をオイルフィル
タ５０側に導入するための外側の導入流路６３（図２に
矢印にて表示）と、オイルフィルタ５０にて清浄とされ
た潤滑油を内燃機関１００の各摺動部に導出するための
内側の導出流路６４（図２に白抜き矢印にて表示）とが
形成されている。As shown in FIGS. 2 and 3, the lubricating oil heating section 60 is disposed between the mounting seat 101a of the cylinder block 101 of the internal combustion engine 100 and the oil filter 50. The lubricating oil heating section 60 is made of aluminum die-cast, and is formed by screwing a cap member 65 on a cylindrical base 61 having substantially the same diameter as the oil filter 50, and has a flat annular PTC thermistor (Thermally Sensitive Resist) inside.
or) 70 is accommodated. Then, the lubricating oil heating unit 60
The outer introduction passage 63 (indicated by an arrow in FIG. 2) for introducing the lubricating oil from the lubricating oil supply passage 40 to the oil filter 50 side, and the lubricating oil cleaned by the oil filter 50. Is formed in each sliding portion of the internal combustion engine 100 with an inner outlet passage 64 (indicated by a white arrow in FIG. 2).
【００２０】潤滑油加熱部６０の基台６１にはオイルフ
ィルタ５０を装着するための雄ねじ部６２が形成され、
また、キャップ部材６５には内燃機関１００のシリンダ
ブロック１０１の取付座１０１ａに螺合するための雄ね
じ部６６が形成されている。そして、潤滑油加熱部６０
は、内燃機関１００のシリンダブロック１０１の取付座
１０１ａにＯリング６９を介してシール性を確保しつつ
装着されている。A male screw 62 for mounting the oil filter 50 is formed on a base 61 of the lubricating oil heating unit 60.
The cap member 65 has a male screw portion 66 for screwing to the mounting seat 101a of the cylinder block 101 of the internal combustion engine 100. Then, the lubricating oil heating unit 60
Is mounted on the mounting seat 101a of the cylinder block 101 of the internal combustion engine 100 via an O-ring 69 while ensuring the sealing performance.
【００２１】潤滑油加熱部６０に収容されているＰＴＣ
サーミスタ７０は、チタン酸バリウム（ＢａＴｉＯ3 ）
系磁器を材料とし、温度が上昇するに連れて電気抵抗が
著しく増大する特性を有している。このＰＴＣサーミス
タ７０は基台６１とキャップ部材６５との間で絶縁状態
が保持されつつ挟持されている。なお、ＰＴＣサーミス
タ７０を基台６１及びキャップ部材６５から絶縁するた
めの皮膜及びＰＴＣサーミスタ７０へ電力供給のための
電極は省略されている。PTC housed in lubricating oil heating section 60
The thermistor 70 is made of barium titanate (BaTiO 3 )
It is made of a system porcelain and has a characteristic that the electric resistance increases remarkably as the temperature rises. The PTC thermistor 70 is sandwiched between the base 61 and the cap member 65 while maintaining an insulating state. Note that a film for insulating the PTC thermistor 70 from the base 61 and the cap member 65 and an electrode for supplying power to the PTC thermistor 70 are omitted.
【００２２】ここで、図４の特性図を参照して、本実施
例におけるＰＴＣサーミスタ７０を有する潤滑油加熱部
６０の有効性について説明する。ここで、始動時の潤滑
油の油温を−３０〔℃〕、かつ流量を１００〔ｍｌ／ｍ
ｉｎ〕とする。Here, the effectiveness of the lubricating oil heating section 60 having the PTC thermistor 70 in this embodiment will be described with reference to the characteristic diagram of FIG. Here, the oil temperature of the lubricating oil at the time of starting is -30 [° C.] and the flow rate is 100 [ml / m
in].
【００２３】図４に示すように、始動後経過時間〔ｓｅ
ｃ〕に対する潤滑油の油温上昇ΔＴ〔℃〕が、潤滑油加
熱部６０の導出流路６４のみを加熱したときに較べて潤
滑油加熱部６０の導入流路６３及び導出流路６４を同時
に加熱したときの方がかなり昇温特性がよいことが分か
る。As shown in FIG. 4, the elapsed time after starting [se
c), the oil temperature rise ΔT [° C.] of the lubricating oil heating unit 60 is caused to occur at the same time as the oil temperature rise ΔT [° C.] of the lubricating oil heating unit 60. It can be seen that the temperature rise characteristics are much better when heated.
【００２４】このように構成された潤滑油加熱部６０に
よれば、内燃機関１００の始動時に油温センサ４１によ
る潤滑油の温度が所定値ＴL 未満であるときには、同時
に車載のバッテリ（図示略）からＰＴＣサーミスタ７０
に通電開始される。すると、内燃機関１００のオイルパ
ン２０側からの潤滑油が導入流路６３を通過する際にＰ
ＴＣサーミスタ７０の外周部７１側の全面に接すること
で加熱昇温され、かつオイルフィルタ５０にて清浄とさ
れた潤滑油も導出流路６４を通過する際にＰＴＣサーミ
スタ７０の内周部７５側の全面に接することで加熱昇温
される。したがって、本実施例の内燃機関用油温制御装
置における潤滑油加熱部６０では、オイルフィルタ５０
への導入流路６３及び導出流路６４の両方を通過する潤
滑油に対して熱効率の良い加熱昇温が実行される。According to the lubricating oil heating unit 60 configured as described above, when the temperature of the lubricating oil detected by the oil temperature sensor 41 is lower than the predetermined value TL at the time of starting the internal combustion engine 100, a battery (not shown) is simultaneously mounted on the vehicle. To PTC thermistor 70
Is started. Then, when the lubricating oil from the oil pan 20 side of the internal combustion engine 100 passes through the introduction flow path 63, P
The lubricating oil heated and heated by contacting the entire surface on the outer peripheral portion 71 side of the TC thermistor 70, and the lubricating oil purified by the oil filter 50 also passes through the lead-out flow path 64 when the inner peripheral portion 75 of the PTC thermistor 70 Is heated and heated by contacting the entire surface of the substrate. Therefore, in the lubricating oil heating unit 60 in the oil temperature control device for an internal combustion engine of the present embodiment, the oil filter 50
The lubricating oil passing through both the introduction flow channel 63 and the extraction flow channel 64 is heated with a high heat efficiency and heated.
【００２５】なお、油温センサ４１による潤滑油の温度
が所定値ＴH を越えたときには、潤滑油が十分暖まった
状態でありこれ以上の加熱昇温が必要ないとしてＰＴＣ
サーミスタ７０への通電が停止される。このＰＴＣサー
ミスタ７０に対する通電制御では、内燃機関１００の始
動と同時にタイマによる通電時間も並行して監視され、
基本的には、このタイマにて所定時間後にＰＴＣサーミ
スタ７０への通電が停止される。また、これ以前に潤滑
油の温度が所定値ＴH を越えたときには、その時点でサ
ーミスタ７０への通電が停止される。When the temperature of the lubricating oil detected by the oil temperature sensor 41 exceeds a predetermined value TH, the lubricating oil is in a sufficiently warmed state, and it is determined that no further heating is required.
The energization of the thermistor 70 is stopped. In the energization control for the PTC thermistor 70, the energization time by the timer is monitored in parallel with the start of the internal combustion engine 100,
Basically, the power supply to the PTC thermistor 70 is stopped after a predetermined time by this timer. If the temperature of the lubricating oil exceeds the predetermined value TH before this, the power supply to the thermistor 70 is stopped at that point.
【００２６】このように、本実施例の内燃機関用油温制
御装置は、内燃機関１００のクランクシャフト１１、ク
ランクピン１２等の各摺動部へ潤滑油を供給する潤滑油
供給経路４０と、内燃機関１００の始動時に、摺動部の
最も近くで潤滑油供給経路４０内に潤滑油が貯留されて
いる部位の少なくとも下流側に配設され、潤滑油を直
接、加熱する潤滑油加熱手段としての潤滑油加熱部６０
とを具備するものである。つまり、内燃機関１００のク
ランクシャフト１１、クランクピン１２等の各摺動部へ
潤滑油を供給する潤滑油供給経路４０内で潤滑油が確実
に貯留されている部位の少なくとも下流側で、内燃機関
１００の始動時に潤滑油が潤滑油加熱部６０にて直接、
加熱されることでその粘性が効率良く低下され、内燃機
関１００における摩擦馬力損失の増大による出力低下を
防止することができる。As described above, the oil temperature control device for an internal combustion engine according to the present embodiment includes a lubricating oil supply path 40 for supplying lubricating oil to each sliding portion of the internal combustion engine 100 such as the crankshaft 11 and the crankpin 12. When the internal combustion engine 100 is started, the lubricating oil is disposed at least downstream of the portion where the lubricating oil is stored in the lubricating oil supply path 40, closest to the sliding portion, and serves as lubricating oil heating means for directly heating the lubricating oil. Lubricating oil heating section 60
Is provided. That is, at least at the downstream side of the portion where the lubricating oil is reliably stored in the lubricating oil supply path 40 that supplies the lubricating oil to each sliding portion such as the crankshaft 11 and the crankpin 12 of the internal combustion engine 100, At the start of 100, the lubricating oil is
By heating, the viscosity is efficiently reduced, and a decrease in output due to an increase in friction horsepower loss in the internal combustion engine 100 can be prevented.
【００２７】また、本実施例の内燃機関用油温制御装置
は、潤滑油加熱手段としての潤滑油加熱部６０を潤滑油
供給経路４０途中で潤滑油を濾過するオイルフィルタ５
０に隣接して配設するものである。つまり、潤滑油供給
経路４０途中のオイルフィルタ５０には内燃機関１００
の始動時に確実に潤滑油が貯留されているため、オイル
フィルタ５０に隣接して配設された潤滑油加熱部６０に
よれば、潤滑油を効率良く加熱昇温させ内燃機関１００
のクランクシャフト１１、クランクピン１２等の各摺動
部へ供給させることができる。The oil temperature control device for an internal combustion engine according to the present embodiment includes a lubricating oil heating unit 60 serving as a lubricating oil heating means, and an oil filter 5 for filtering the lubricating oil in the lubricating oil supply path 40.
It is arranged adjacent to 0. That is, the oil filter 50 in the lubricating oil supply path 40 is
Since the lubricating oil is reliably stored at the start of the engine, the lubricating oil heating unit 60 arranged adjacent to the oil filter 50 efficiently heats and raises the temperature of the lubricating oil to increase the temperature of the internal combustion engine 100.
To the respective sliding parts such as the crankshaft 11 and the crankpin 12.
【００２８】そして、本実施例の内燃機関用油温制御装
置は、更に、潤滑油加熱手段としての潤滑油加熱部６０
の直後の下流側に潤滑油の温度を検出する油温センサ４
１を有し、潤滑油加熱部６０が内燃機関１００の始動時
でかつ油温センサ４１で検出された潤滑油の温度が第１
の所定値ＴL より低いとき加熱を開始すると共に、潤滑
油の温度が第２の所定値ＴH より高くなったときには加
熱を終了するものである。つまり、潤滑油加熱部６０で
は内燃機関１００の始動時、油温センサ４１で検出され
る潤滑油の温度が第１の所定値ＴL より低いときに加熱
開始され、第２の所定値ＴH より高くなると加熱終了さ
れる。即ち、油温センサ４１で検出される潤滑油の温度
に応じて通電制御され不必要な加熱昇温を行わないよう
にされる。これにより、内燃機関１００の冷間時におけ
るクランクシャフト１１、クランクピン１２等の各摺動
部へ供給される潤滑油の温度が素早く昇温され始動性が
向上されると同時に、無駄なエネルギ消費を減らすこと
ができる。The oil temperature control device for an internal combustion engine according to this embodiment further includes a lubricating oil heating section 60 as lubricating oil heating means.
Oil temperature sensor 4 that detects the temperature of the lubricating oil on the downstream side immediately after
1 when the lubricating oil heating unit 60 starts the internal combustion engine 100 and the lubricating oil temperature detected by the oil temperature sensor 41 is the first lubricating oil temperature.
When the temperature of the lubricating oil is higher than the second predetermined value TH, the heating is started when the temperature is lower than the predetermined value TL. That is, when the internal combustion engine 100 is started, when the temperature of the lubricating oil detected by the oil temperature sensor 41 is lower than the first predetermined value TL, the lubricating oil heating unit 60 starts heating, and the lubricating oil heating unit 60 increases the temperature higher than the second predetermined value TH. Then, the heating is terminated. That is, the power supply is controlled in accordance with the temperature of the lubricating oil detected by the oil temperature sensor 41 so that unnecessary heating and temperature increase are not performed. As a result, when the internal combustion engine 100 is cold, the temperature of the lubricating oil supplied to each sliding portion such as the crankshaft 11 and the crankpin 12 is quickly raised to improve the startability, and at the same time, wasteful energy consumption Can be reduced.
【００２９】また、本実施例の内燃機関用油温制御装置
は、更に、潤滑油加熱手段としての潤滑油加熱部６０に
よる内燃機関１００の始動時からの加熱期間を設定する
タイマ手段を有し、タイマ手段による加熱期間の経過
後、潤滑油加熱部６０による加熱を終了するものであ
る。つまり、タイマ手段で潤滑油加熱部６０による内燃
機関１００の始動時の通電開始からの加熱期間が監視さ
れ、その加熱期間が経過すると通電終了され必要以上の
加熱昇温を行わないようにされる。これにより、内燃機
関１００の冷間時におけるクランクシャフト１１、クラ
ンクピン１２等の各摺動部へ供給される潤滑油の温度が
素早く昇温され始動性が向上されると共に、燃料やバッ
テリ電力等の無駄な消費を抑えることができる。The oil temperature control device for an internal combustion engine according to the present embodiment further includes timer means for setting a heating period from the start of the internal combustion engine 100 by the lubricating oil heating section 60 as lubricating oil heating means. After the elapse of the heating period by the timer means, the heating by the lubricating oil heating unit 60 is terminated. In other words, the timer means monitors the heating period from the start of energization of the internal combustion engine 100 by the lubricating oil heating unit 60 when the internal combustion engine 100 is started. When the heating period elapses, the energization is terminated so that the heating temperature is not increased more than necessary. . Thus, when the internal combustion engine 100 is cold, the temperature of the lubricating oil supplied to each sliding portion of the crankshaft 11, the crankpin 12, and the like is quickly raised to improve the startability, and to improve the fuel and battery power and the like. Wasteful consumption can be suppressed.
【００３０】加えて、本実施例の内燃機関用油温制御装
置は、潤滑油加熱手段としての潤滑油加熱部６０がＰＴ
Ｃサーミスタ７０を有することを特徴とするものであ
る。この潤滑油加熱部６０に用いられているＰＴＣサー
ミスタ７０は構造が簡単で安価であり、昇温特性に優れ
た加熱システムを構築することができる。In addition, in the oil temperature control device for an internal combustion engine of the present embodiment, the lubricating oil
It is characterized by having a C thermistor 70. The PTC thermistor 70 used in the lubricating oil heating section 60 has a simple structure and is inexpensive, and can construct a heating system having excellent temperature rising characteristics.
【００３１】なお、ＰＴＣサーミスタ形状としては、平
板環状に限られるものではなく、図５に示すように、所
定の厚みを有する円筒状のＰＴＣサーミスタ７０′とし
て中心軸に形成された穴を導出流路７７、その周囲に形
成された複数の穴を導入流路７３とする円筒ハニカム状
であってもよい。また、図６に示すように、径の異なる
２つの円筒７２，７６を同心状に組合わせたＰＴＣサー
ミスタ７０″のような構造であってもよい。これらのＰ
ＴＣサーミスタ７０′，７０″においても、外側を潤滑
油の導入流路７３とし内側を潤滑油の導出流路７７とす
ることで潤滑油に対して熱効率の良い加熱昇温を実行す
ることができる。なお、外側と内側とが逆の構成であっ
てもよい。The shape of the PTC thermistor is not limited to a flat annular plate, and as shown in FIG. 5, a hole formed in the center axis as a cylindrical PTC thermistor 70 'having a predetermined thickness is used as an outlet. The passage 77 may have a cylindrical honeycomb shape with a plurality of holes formed around the passage 77 as the introduction passage 73. 6, a structure like a PTC thermistor 70 ″ in which two cylinders 72 and 76 having different diameters are combined concentrically may be used.
Also in the TC thermistors 70 ′ and 70 ″, since the outside is the lubricating oil introduction channel 73 and the inside is the lubricating oil outlet channel 77, it is possible to perform the heating and heating with high thermal efficiency to the lubricating oil. The outer and inner sides may be reversed.
【００３２】また、潤滑油加熱部６０の熱源としては、
上述のＰＴＣサーミスタ７０，７０′，７０″に限られ
るものではなく、周知のフィルムヒータ等を使用するこ
ともできる。更に、加熱方式としては、図７に示すよう
な高周波加熱を用いることもできる。つまり、ヒーティ
ングコイルＨＣによって生じる高周波磁界により、図６
と同様な同心円筒状からなる内側の発熱体ＨＢ1 及び外
側の発熱体ＨＢ2 に渦電流が発生され、通過中の潤滑油
が直に加熱される。このように、潤滑油加熱部６０に誘
導加熱機構を用いた加熱方式は、潤滑油の流量が多いと
きに有効である。As a heat source of the lubricating oil heating unit 60,
The PTC thermistors 70, 70 ', and 70 "are not limited to the above, and a known film heater or the like may be used. Further, as a heating method, high-frequency heating as shown in FIG. 7 may be used. That is, the high frequency magnetic field generated by the heating coil HC causes the high frequency magnetic field shown in FIG.
An eddy current is generated in the inner heating element HB1 and the outer heating element HB2 having the same concentric cylindrical shape as described above, and the passing lubricating oil is directly heated. Thus, the heating method using the induction heating mechanism in the lubricating oil heating unit 60 is effective when the flow rate of the lubricating oil is large.
【００３３】他の加熱方式としては、ディーゼル内燃機
関の冷間時の始動補助する周知のグローシステムで用い
られている、図８に示すような、金属グロープラグ用素
子ＭＧＰまたはセラミックグロープラグ用素子ＣＧＰ
を、図６と同様な同心円筒状からなる内側部材ＣＢ1 及
び外側部材ＣＢ2 に対して外周囲から挿嵌させて構成し
た潤滑油加熱部６０を用いることもできる。このよう
に、潤滑油加熱部６０に金属グロープラグ用素子ＭＧＰ
またはセラミックグロープラグ用素子ＣＧＰを用いた加
熱方式は、特に、潤滑油に対して速熱性を要するときに
有効である。これら金属グロープラグ用素子ＭＧＰやセ
ラミックグロープラグ用素子ＣＧＰとしては、勿論、オ
イル劣化性等を改善したものが用いられる。As another heating method, an element MGP for a metal glow plug or an element for a ceramic glow plug as shown in FIG. 8, which is used in a well-known glow system for assisting a cold start of a diesel internal combustion engine. CGP
The lubricating oil heating unit 60 can be used by inserting the lubricating oil into the inner member CB1 and the outer member CB2 having the same concentric cylindrical shape as in FIG. 6 from the outer periphery. Thus, the lubricating oil heating unit 60 is provided with the metal glow plug element MGP.
Alternatively, the heating method using the ceramic glow plug element CGP is particularly effective when the lubricating oil requires rapid heating. As the element MGP for metal glow plugs and the element CGP for ceramic glow plugs, of course, those having improved oil deterioration properties and the like are used.
【００３４】〈実施例２〉図９は本発明の実施の形態の
第２実施例にかかる内燃機関用油温制御装置が適用され
た内燃機関のシリンダブロック及びオイルフィルタを含
む潤滑油冷却兼加熱部を示す断面図である。なお、本実
施例の内燃機関用油温制御装置が適用された内燃機関の
全体構成については、上述の第１実施例の概略図を示す
図１と同様であり、その詳細な説明を省略する。また、
図中、上述の実施例と同様の構成または相当部分からな
るものについては同一符号及び同一記号を付し、その詳
細な説明を省略する。<Embodiment 2> FIG. 9 shows a cooling and heating method of a lubricating oil including a cylinder block and an oil filter of an internal combustion engine to which an oil temperature control device for an internal combustion engine according to a second embodiment of the present invention is applied. It is sectional drawing which shows a part. The overall configuration of the internal combustion engine to which the oil temperature control device for an internal combustion engine of the present embodiment is applied is the same as that of FIG. 1 showing a schematic diagram of the above-described first embodiment, and a detailed description thereof will be omitted. . Also,
In the drawing, the same reference numerals and symbols are given to components having the same configuration or corresponding portions as those of the above-described embodiment, and detailed description thereof will be omitted.
【００３５】図９において、内燃機関１００のシリンダ
ブロック１０１の取付座１０１ａに螺合された中空貫通
ボルト１１０を介して潤滑油冷却兼加熱部６００が挿嵌
されナット１２０にて締付け固定されている。この中空
貫通ボルト１１０の先端側の雄ねじ部１１１を利用し
て、潤滑油冷却兼加熱部６００には周知のスピンオン型
オイルフィルタ５０が液密に装着されている。このよう
に、潤滑油冷却兼加熱部６００は内燃機関１００のシリ
ンダブロック１０１の取付座１０１ａとオイルフィルタ
５０との間に配設されている。In FIG. 9, a lubricating oil cooling and heating section 600 is inserted through a hollow through bolt 110 screwed into a mounting seat 101 a of a cylinder block 101 of an internal combustion engine 100 and is fastened and fixed by a nut 120. . A well-known spin-on type oil filter 50 is mounted in the lubricating oil cooling and heating unit 600 in a liquid-tight manner by using the male screw portion 111 on the distal end side of the hollow penetration bolt 110. As described above, the lubricating oil cooling and heating unit 600 is disposed between the mounting seat 101 a of the cylinder block 101 of the internal combustion engine 100 and the oil filter 50.
【００３６】内燃機関１００のシリンダブロック１０１
の取付座１０１ａには、潤滑油を潤滑油冷却兼加熱部６
００を介してオイルフィルタ５０側に送出するオイル入
口側流路１０２、この潤滑油がオイルフィルタ５０にて
濾過されたのち潤滑油冷却兼加熱部６００を介して内燃
機関１００側に戻すオイル出口側流路１０３が形成され
ている。また、潤滑油冷却兼加熱部６００の周囲側面に
は、内燃機関１００側からの冷却水を潤滑油冷却兼加熱
部６００内に導入する冷却水入口側流路６１１、潤滑油
冷却兼加熱部６００内の冷却水を内燃機関１００側に戻
す冷却水出口側流路６１２が形成されている。The cylinder block 101 of the internal combustion engine 100
The lubricating oil is supplied to the mounting seat 101a of the
00, an oil inlet side flow path 102 which is sent out to the oil filter 50 side, and an oil outlet side which returns the lubricating oil to the internal combustion engine 100 side via the lubricating oil cooling and heating unit 600 after being filtered by the oil filter 50. A channel 103 is formed. A cooling water inlet side flow passage 611 for introducing cooling water from the internal combustion engine 100 into the lubricating oil cooling and heating unit 600 is provided on a peripheral side surface of the lubricating oil cooling and heating unit 600. A cooling water outlet side flow path 612 for returning the cooling water inside to the internal combustion engine 100 side is formed.
【００３７】潤滑油冷却兼加熱部６００はベース板６２
１上にハウジング部材６２２，６２３，６２４が接合さ
れ形成された略円筒状である。この潤滑油冷却兼加熱部
６００のベース板６２１とハウジング部材６２２とで囲
まれた内部空間には潤滑油冷却部として周知の水冷式の
オイルクーラと同様、積層されたディスク状構造からな
るクーラコア６３０が一枚おきに交互に配設され、クー
ラコア６３０外部を冷却水、クーラコア６３０内部を潤
滑油がそれぞれ流れることで、潤滑油が冷却される。The lubricating oil cooling and heating unit 600 is
1 has a substantially cylindrical shape formed by joining housing members 622, 623, and 624 thereto. In the internal space surrounded by the base plate 621 and the housing member 622 of the lubricating oil cooling and heating unit 600, a cooler core 630 having a laminated disk-like structure, like a water-cooled oil cooler known as a lubricating oil cooling unit. Are alternately disposed every other sheet, and the cooling water flows outside the cooler core 630 and the lubricating oil flows inside the cooler core 630, thereby cooling the lubricating oil.
【００３８】また、潤滑油冷却兼加熱部６００として
は、潤滑油冷却部を構成するディスク状構造の複数のク
ーラコア６３０に対して一枚おきに交互になるように、
上述の第１実施例と同様な平板環状のＰＴＣサーミスタ
７０′が配設されている。なお、ＰＴＣサーミスタ７
０′をクーラコア６３０等から絶縁するための皮膜及び
ＰＴＣサーミスタ７０′へ電力供給のための電極は省略
されている。Further, as the lubricating oil cooling and heating unit 600, a plurality of disk-shaped cooler cores 630 constituting the lubricating oil cooling unit are alternately arranged every other sheet.
A PTC thermistor 70 'having a ring shape similar to that of the first embodiment is provided. The PTC thermistor 7
A film for insulating 0 'from the cooler core 630 and the like and an electrode for supplying power to the PTC thermistor 70' are omitted.
【００３９】そして、潤滑油冷却兼加熱部６００のハウ
ジング部材６２２の上外面とハウジング部材６２３，６
２４とで囲まれた内部空間にはクーラコア６３０及びＰ
ＴＣサーミスタ７０′を通過するように設けられた潤滑
油流路６３１を通った潤滑油が流れ、オイルフィルタ５
０側に送出される。ここで、潤滑油冷却兼加熱部６００
のハウジング部材６２３に接合されたハウジング部材６
２４の上外面には、オイルフィルタ５０を装着するため
の装着面が形成されている。The upper and outer surfaces of the housing member 622 of the lubricating oil cooling and heating section 600 and the housing members 623, 6
24 and the cooler core 630 and P
The lubricating oil flows through a lubricating oil flow path 631 provided so as to pass through the TC thermistor 70 ', and the oil filter 5
It is sent to the 0 side. Here, the lubricating oil cooling and heating unit 600
Housing member 6 joined to the housing member 623 of FIG.
A mounting surface for mounting the oil filter 50 is formed on the upper outer surface of the 24.
【００４０】更に、内燃機関１００のシリンダブロック
１０１の取付座１０１ａに密着される潤滑油冷却兼加熱
部６００のベース板６２１の取付座６２１ａ側には、中
空貫通ボルト１１０との接触面を液密にシールするＯリ
ング６２５、ベース板６２１の取付座６２１ａ側の外縁
部を液密にシールするＯリング６２６が同心円状に配置
されている。Further, on the mounting seat 621a side of the base plate 621 of the lubricating oil cooling and heating unit 600 which is in close contact with the mounting seat 101a of the cylinder block 101 of the internal combustion engine 100, the contact surface with the hollow through bolt 110 is liquid-tight. An O-ring 625 for sealing the base plate 621 and an O-ring 626 for sealing the outer edge of the base plate 621 on the mounting seat 621a side in a liquid-tight manner are concentrically arranged.
【００４１】このように構成された潤滑油冷却兼加熱部
６００においては、潤滑油を冷却するオイルクーラ機能
に加えて、潤滑油の温度が低いときには潤滑油を加熱す
る昇温機能を有することとなる。なお、潤滑油冷却兼加
熱部６００のクーラコア６３０及びＰＴＣサーミスタ７
０′の積層枚数等は、潤滑油に対する冷却性能及び昇温
性能、更に、搭載性を考慮して設定される。また、本実
施例では、潤滑油冷却兼加熱部６００のクーラコア６３
０の一部分をＰＴＣサーミスタ７０′に置換えた構成と
したが、潤滑油冷却兼加熱部６００の外形形状が多少大
きくなってもよい場合には、従来のオイルクーラ部の外
部、即ち、外周面に接触するようにＰＴＣサーミスタを
設けるような構成とすることもできる。The lubricating oil cooling and heating section 600 having the above-described structure has, in addition to an oil cooler function for cooling the lubricating oil, a heating function for heating the lubricating oil when the temperature of the lubricating oil is low. Become. The cooler core 630 and the PTC thermistor 7 of the lubricating oil cooling and heating unit 600
The number of stacked layers of 0 'and the like are set in consideration of the cooling performance and the temperature raising performance with respect to the lubricating oil and the mountability. Further, in the present embodiment, the cooler core 63 of the lubricating oil cooling / heating unit 600 is used.
0 is replaced with a PTC thermistor 70 ', but if the outer shape of the lubricating oil cooling and heating unit 600 may be slightly larger, It is also possible to adopt a configuration in which a PTC thermistor is provided so as to make contact with the PTC thermistor.
【００４２】更に、通常の構成では、潤滑油がオイルフ
ィルタ５０へ入る前に加熱されることとなるが、オイル
クーラの構造を変更し、オイルフィルタ５０の通過後に
加熱される構成とすることもできる。Further, in the ordinary configuration, the lubricating oil is heated before entering the oil filter 50. However, the lubricating oil may be heated after passing through the oil filter 50 by changing the structure of the oil cooler. it can.
【００４３】このように、本実施例の内燃機関用油温制
御装置は、内燃機関１００のクランクシャフト１１、ク
ランクピン１２等の各摺動部へ潤滑油を供給する潤滑油
供給経路４０と、潤滑油供給経路４０途中で潤滑油を濾
過するオイルフィルタ５０と、オイルフィルタ５０に隣
接して潤滑油を冷却する潤滑油冷却手段を達成する潤滑
油冷却兼加熱部６００の潤滑油冷却部としてのクーラコ
ア６３０と、潤滑油冷却兼加熱部６００のクーラコア６
３０に併設され潤滑油を直接、加熱する潤滑油加熱手段
を達成する潤滑油冷却兼加熱部６００とを具備するもの
である。つまり、内燃機関１００のクランクシャフト１
１、クランクピン１２等の各摺動部へ潤滑油を供給する
潤滑油供給経路４０途中で潤滑油を濾過するオイルフィ
ルタ５０に隣接して潤滑油冷却部に潤滑油加熱部が併設
され潤滑油冷却兼加熱部６００が構成されている。この
ため、内燃機関１００の始動時に潤滑油が潤滑油冷却兼
加熱部６００にて直接、加熱されることでその粘性が効
率良く低下され、内燃機関１００における摩擦馬力損失
の増大による出力低下を防止することができる。As described above, the oil temperature control device for an internal combustion engine according to the present embodiment includes a lubricating oil supply path 40 for supplying lubricating oil to each sliding portion of the internal combustion engine 100 such as the crankshaft 11 and the crankpin 12. An oil filter 50 that filters the lubricating oil in the middle of the lubricating oil supply path 40 and a lubricating oil cooling unit of the lubricating oil cooling and heating unit 600 that achieves a lubricating oil cooling unit that cools the lubricating oil adjacent to the oil filter 50 Cooler core 630 and cooler core 6 of lubricating oil cooling and heating section 600
The lubricating oil cooling / heating unit 600 is provided in parallel with the lubricating oil heating means 600 for directly heating the lubricating oil. That is, the crankshaft 1 of the internal combustion engine 100
1. A lubricating oil heating unit is provided in a lubricating oil cooling unit adjacent to an oil filter 50 that filters lubricating oil in the middle of a lubricating oil supply path 40 that supplies lubricating oil to each sliding unit such as the crankpin 12. A cooling / heating unit 600 is configured. Therefore, when the internal combustion engine 100 is started, the lubricating oil is directly heated by the lubricating oil cooling and heating unit 600, whereby the viscosity is efficiently reduced, and the output reduction due to the increase in friction horsepower loss in the internal combustion engine 100 is prevented. can do.
【００４４】また、本実施例の内燃機関用油温制御装置
は、潤滑油加熱手段としての潤滑油冷却兼加熱部６００
を潤滑油冷却手段を達成する潤滑油冷却兼加熱部６００
の内部のクーラコア６３０部分に配設するものである。
具体的には、潤滑油冷却兼加熱部６００内におけるディ
スク状構造の複数のクーラコア６３０と一枚おきに潤滑
油加熱部を交互に配設するものである。即ち、潤滑油冷
却兼加熱部６００は潤滑油冷却部としてのクーラコア６
３０と潤滑油加熱部とにより構成されており、内燃機関
１００の冷間時における摺動部へ供給される潤滑油の温
度が昇温されることで始動性が向上される。The oil temperature control device for an internal combustion engine according to the present embodiment includes a lubricating oil cooling and heating unit 600 as lubricating oil heating means.
Lubricating oil cooling and heating unit 600 for achieving lubricating oil cooling means
Is disposed in the cooler core 630 inside the.
More specifically, a plurality of disk-shaped cooler cores 630 in the lubricating oil cooling and heating section 600 and a lubricating oil heating section are alternately arranged every other sheet. That is, the lubricating oil cooling and heating unit 600 is a cooler core 6 as a lubricating oil cooling unit.
30 and a lubricating oil heating section, and the startability is improved by increasing the temperature of the lubricating oil supplied to the sliding section when the internal combustion engine 100 is cold.
【００４５】そして、本実施例の内燃機関用油温制御装
置は、更に、潤滑油加熱手段としての潤滑油冷却兼加熱
部６００の直後の下流側に潤滑油の温度を検出する油温
センサ４１を有し、潤滑油冷却兼加熱部６００が内燃機
関１００の始動時でかつ油温センサ４１で検出された潤
滑油の温度が第１の所定値ＴL より低いとき加熱を開始
すると共に、潤滑油の温度が第２の所定値ＴH より高く
なったときには加熱を終了するものである。つまり、潤
滑油冷却兼加熱部６００では内燃機関１００の始動時、
油温センサ４１で検出される潤滑油の温度が第１の所定
値ＴL より低いときに加熱開始され、第２の所定値ＴH
より高くなると加熱終了される。即ち、油温センサ４１
で検出される潤滑油の温度に応じて通電制御され不必要
な加熱昇温を行わないようにされる。これにより、内燃
機関１００の冷間時におけるクランクシャフト１１、ク
ランクピン１２等の各摺動部へ供給される潤滑油の温度
が素早く昇温され始動性が向上されると同時に、無駄な
エネルギ消費を抑えることができる。The oil temperature control device for an internal combustion engine according to the present embodiment further includes an oil temperature sensor 41 for detecting the temperature of the lubricating oil on the downstream side immediately after the lubricating oil cooling and heating section 600 as lubricating oil heating means. When the lubricating oil cooling and heating unit 600 starts the internal combustion engine 100 and the temperature of the lubricating oil detected by the oil temperature sensor 41 is lower than a first predetermined value TL, heating is started, and When the temperature becomes higher than the second predetermined value TH, the heating is terminated. That is, in the lubricating oil cooling and heating unit 600, when the internal combustion engine 100 is started,
Heating is started when the temperature of the lubricating oil detected by the oil temperature sensor 41 is lower than the first predetermined value TL, and the second predetermined value TH is started.
If it becomes higher, the heating is terminated. That is, the oil temperature sensor 41
The current is controlled in accordance with the temperature of the lubricating oil detected in step (1), so that unnecessary heating and heating are not performed. As a result, when the internal combustion engine 100 is cold, the temperature of the lubricating oil supplied to each sliding portion such as the crankshaft 11 and the crankpin 12 is quickly raised to improve the startability, and at the same time, wasteful energy consumption Can be suppressed.
【００４６】また、本実施例の内燃機関用油温制御装置
は、更に、潤滑油加熱手段としての潤滑油冷却兼加熱部
６００による内燃機関１００の始動時からの加熱期間を
設定するタイマ手段を有し、タイマ手段による加熱期間
の経過後、潤滑油冷却兼加熱部６００による加熱を終了
するものである。このように、タイマ手段で潤滑油冷却
兼加熱部６００による内燃機関１００の始動時の通電開
始からの加熱期間が監視され、その加熱期間が経過する
と通電終了され必要以上の加熱昇温を行わないようにさ
れる。これにより、内燃機関１００の冷間時におけるク
ランクシャフト１１、クランクピン１２等の各摺動部へ
供給される潤滑油の温度が素早く昇温され始動性が向上
されると共に、燃料やバッテリ電力等の無駄な消費を抑
えることができる。The oil temperature control device for an internal combustion engine according to the present embodiment further includes a timer means for setting a heating period from the start of the internal combustion engine 100 by the lubricating oil cooling and heating unit 600 as a lubricating oil heating means. The heating by the lubricating oil cooling and heating unit 600 is terminated after the elapse of the heating period by the timer means. As described above, the heating unit monitors the heating period from the start of energization of the internal combustion engine 100 at the start of the internal combustion engine 100 by the lubricating oil cooling and heating unit 600. When the heating period elapses, the energization is terminated and the heating temperature is not increased more than necessary. To be. Thus, when the internal combustion engine 100 is cold, the temperature of the lubricating oil supplied to each sliding portion of the crankshaft 11, the crankpin 12, and the like is quickly raised to improve the startability, and to improve the fuel and battery power and the like. Wasteful consumption can be suppressed.
【００４７】加えて、本実施例の内燃機関用油温制御装
置は、潤滑油加熱手段としての潤滑油冷却兼加熱部６０
０はＰＴＣサーミスタ７０′を有するものである。この
潤滑油冷却兼加熱部６００に用いられているＰＴＣサー
ミスタ７０′は構造が簡単で安価であり、昇温特性に優
れた加熱システムを構築することができる。In addition, the oil temperature control device for an internal combustion engine according to the present embodiment has a lubricating oil cooling and heating unit 60 as lubricating oil heating means.
0 has a PTC thermistor 70 '. The PTC thermistor 70 'used in the lubricating oil cooling and heating section 600 has a simple structure and is inexpensive, and can construct a heating system excellent in temperature rising characteristics.
【００４８】ところで、上記実施例では、潤滑油冷却兼
加熱部６００はＰＴＣサーミスタ７０′を用いている
が、本発明を実施する場合には、これに限定されるもの
ではなく、上述の第１実施例と同様に、潤滑油冷却兼加
熱部６００の加熱方式としては誘導加熱機構や金属グロ
ープラグ用素子、セラミックグロープラグ用素子を用い
ることもできる。そして、誘導加熱機構を用いた加熱方
式は、潤滑油の流量が多いときに有効であり、金属グロ
ープラグ用素子またはセラミックグロープラグ用素子を
用いた加熱方式は、特に、潤滑油に対して速熱性を要す
るときに有効である。In the above embodiment, the PTC thermistor 70 'is used for the lubricating oil cooling and heating unit 600. However, the present invention is not limited to this, and the first embodiment is not limited to this. As in the embodiment, as the heating method of the lubricating oil cooling and heating unit 600, an induction heating mechanism, a metal glow plug element, or a ceramic glow plug element can be used. The heating method using the induction heating mechanism is effective when the flow rate of the lubricating oil is large. The heating method using the element for the metal glow plug or the element for the ceramic glow plug is particularly effective for the lubricating oil. It is effective when heat is required.
【図１】 図１は本発明の実施の形態の第１実施例乃至
第２実施例にかかる内燃機関用油温制御装置が適用され
た内燃機関の潤滑油供給経路を示す概略図である。FIG. 1 is a schematic diagram showing a lubricating oil supply path of an internal combustion engine to which an internal combustion engine oil temperature control device according to a first example or a second example of the embodiment of the present invention is applied.
【図２】 図２は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部を含
む構造を示す断面図である。FIG. 2 is a sectional view showing a structure including a lubricating oil heating unit in an oil temperature control device for an internal combustion engine according to a first example of an embodiment of the present invention.
【図３】 図３は図２のＡ−Ａ線に沿う断面図である。FIG. 3 is a sectional view taken along the line AA of FIG. 2;
【図４】 図４は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部の有
効性を示す特性図である。FIG. 4 is a characteristic diagram showing the effectiveness of a lubricating oil heating unit in the oil temperature control device for an internal combustion engine according to the first example of the embodiment of the present invention.
【図５】 図５は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部で用
いられているＰＴＣサーミスタの変形例を示す斜視図で
ある。FIG. 5 is a perspective view showing a modified example of the PTC thermistor used in the lubricating oil heating unit in the oil temperature control device for the internal combustion engine according to the first example of the embodiment of the present invention.
【図６】 図６は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部で用
いられているＰＴＣサーミスタの他の変形例を示す斜視
図である。FIG. 6 is a perspective view showing another modification of the PTC thermistor used in the lubricating oil heating unit in the oil temperature control device for the internal combustion engine according to the first embodiment of the present invention. .
【図７】 図７は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部によ
る加熱方式の変形例を示す斜視図である。FIG. 7 is a perspective view showing a modification of a heating method using a lubricating oil heating unit in an oil temperature control device for an internal combustion engine according to a first example of an embodiment of the present invention.
【図８】 図８は本発明の実施の形態の第１実施例にか
かる内燃機関用油温制御装置における潤滑油加熱部によ
る加熱方式の他の変形例を示す斜視図である。FIG. 8 is a perspective view showing another modification of the heating method using the lubricating oil heating unit in the oil temperature control device for the internal combustion engine according to the first example of the embodiment of the present invention.
【図９】 図９は本発明の実施の形態の第２実施例にか
かる内燃機関用油温制御装置における潤滑油冷却兼加熱
部を含む構造を示す断面図である。FIG. 9 is a cross-sectional view showing a structure including a lubricating oil cooling and heating unit in an internal combustion engine oil temperature control device according to a second example of the embodiment of the present invention.
４０ 潤滑油供給経路 ４１ 油温センサ ５０ オイルフィルタ ６０ 潤滑油加熱部（潤滑油加熱手段） ７０ ＰＴＣサーミスタ １００ 内燃機関 Reference Signs List 40 lubricating oil supply path 41 oil temperature sensor 50 oil filter 60 lubricating oil heating unit (lubricating oil heating means) 70 PTC thermistor 100 internal combustion engine
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 直也 愛知県西尾市下羽角町岩谷14番地 株式会 社日本自動車部品総合研究所内 (72)発明者 小浜 時男 愛知県西尾市下羽角町岩谷14番地 株式会 社日本自動車部品総合研究所内 (72)発明者 西尾 佳高 愛知県刈谷市昭和町１丁目１番地 株式会 社デンソー内 Ｆターム(参考） 3G013 BD09 BD10 CA16 DA03 DA16 EA06 EA08 3G015 BG03 BG04 BG15 BG16 CA01 DA10 EA00 FA01 FA03 FB05 FC05 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Naoya Kato 14 Iwatani, Shimowakakucho, Nishio City, Aichi Prefecture Inside the Japan Automobile Parts Research Institute (72) Inventor Tokio Obama 14 Iwatani, Shimowakakucho, Nishio City, Aichi Prefecture Stock (72) Inventor Yoshitaka Nishio 1-1-1 Showa-cho, Kariya-shi, Aichi F-term (reference) in Denso Corporation 3G013 BD09 BD10 CA16 DA03 DA16 EA06 EA08 3G015 BG03 BG04 BG15 BG16 CA01 DA10 EA00 FA01 FA03 FB05 FC05
Claims (10)
滑油供給経路と、 前記内燃機関の始動時に、前記摺動部の近接した位置で
前記潤滑油供給経路内に前記潤滑油が貯留されている部
位の少なくとも下流側に配設され、前記潤滑油を直接、
加熱する潤滑油加熱手段とを具備することを特徴とする
内燃機関用油温制御装置。1. A lubricating oil supply path for supplying lubricating oil to a sliding portion of an internal combustion engine, and the lubricating oil is supplied into the lubricating oil supply path at a position close to the sliding portion when the internal combustion engine is started. It is disposed at least downstream of the stored portion, and directly supplies the lubricating oil,
An oil temperature control device for an internal combustion engine, comprising: lubricating oil heating means for heating.
経路途中で前記潤滑油を濾過するオイルフィルタに隣接
して配設することを特徴とする請求項１に記載の内燃機
関用油温制御装置。2. The oil temperature for an internal combustion engine according to claim 1, wherein the lubricating oil heating means is disposed adjacent to an oil filter for filtering the lubricating oil in the lubricating oil supply path. Control device.
滑油供給経路と、 前記潤滑油供給経路途中で前記潤滑油を濾過するオイル
フィルタと、 前記オイルフィルタに隣接して前記潤滑油を冷却する潤
滑油冷却手段と、 前記潤滑油冷却手段に併設され前記潤滑油を直接、加熱
する潤滑油加熱手段とを具備することを特徴とする内燃
機関用油温制御装置。3. A lubricating oil supply path for supplying lubricating oil to a sliding portion of the internal combustion engine, an oil filter for filtering the lubricating oil in the middle of the lubricating oil supply path, and the lubricating oil adjacent to the oil filter. An oil temperature control device for an internal combustion engine, comprising: a lubricating oil cooling unit that cools the lubricating oil; and a lubricating oil heating unit that is provided adjacent to the lubricating oil cooling unit and directly heats the lubricating oil.
手段の内部または外部に配設することを特徴とする請求
項３に記載の内燃機関用油温制御装置。4. The oil temperature control device for an internal combustion engine according to claim 3, wherein said lubricating oil heating means is disposed inside or outside said lubricating oil cooling means.
側に前記潤滑油の温度を検出する油温センサを有し、 前記潤滑油加熱手段は、前記内燃機関の始動時でかつ前
記油温センサで検出された前記潤滑油の温度が第１の所
定値より低いとき加熱を開始すると共に、前記潤滑油の
温度が第２の所定値より高くなったときには加熱を終了
することを特徴とする請求項１乃至請求項４の何れか１
つに記載の内燃機関用油温制御装置。5. An oil temperature sensor for detecting a temperature of the lubricating oil immediately downstream of the lubricating oil heating means, wherein the lubricating oil heating means is provided at the time of starting the internal combustion engine and at the time of starting the oil operation. When the temperature of the lubricating oil detected by the temperature sensor is lower than a first predetermined value, heating is started, and when the temperature of the lubricating oil is higher than a second predetermined value, the heating is ended. Any one of claims 1 to 4
An oil temperature control device for an internal combustion engine according to any one of the above.
燃機関の始動時からの加熱期間を設定するタイマ手段を
有し、 前記タイマ手段による前記加熱期間の経過後、前記潤滑
油加熱手段による加熱を終了することを特徴とする請求
項１乃至請求項５の何れか１つに記載の内燃機関用油温
制御装置。6. A timer for setting a heating period of the internal combustion engine from the start of the internal combustion engine by the lubricating oil heating unit, and heating by the lubricating oil heating unit after the elapse of the heating period by the timer unit. 6. The oil temperature control device for an internal combustion engine according to claim 1, wherein the control is terminated.
ve Temperature Coefficient：正温度係数）サーミスタ
を有することを特徴とする請求項１乃至請求項６の何れ
か１つに記載の内燃機関用油温制御装置。7. The lubricating oil heating means includes a PTC (Positi
The oil temperature control device for an internal combustion engine according to any one of claims 1 to 6, further comprising a ve temperature coefficient (positive temperature coefficient) thermistor.
有することを特徴とする請求項１乃至請求項６の何れか
１つに記載の内燃機関用油温制御装置。8. The oil temperature control device for an internal combustion engine according to claim 1, wherein said lubricating oil heating means has an induction heating mechanism.
グ用素子を有することを特徴とする請求項１乃至請求項
６の何れか１つに記載の内燃機関用油温制御装置。9. The oil temperature control device for an internal combustion engine according to claim 1, wherein said lubricating oil heating means has a metal glow plug element.
ロープラグ用素子を有することを特徴とする請求項１乃
至請求項６の何れか１つに記載の内燃機関用油温制御装
置。10. The oil temperature control device for an internal combustion engine according to claim 1, wherein said lubricating oil heating means has a ceramic glow plug element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11108706A JP2000297622A (en) | 1999-04-16 | 1999-04-16 | Oil temperature control device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11108706A JP2000297622A (en) | 1999-04-16 | 1999-04-16 | Oil temperature control device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000297622A true JP2000297622A (en) | 2000-10-24 |
Family
ID=14491554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11108706A Pending JP2000297622A (en) | 1999-04-16 | 1999-04-16 | Oil temperature control device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000297622A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050040320A (en) * | 2003-10-28 | 2005-05-03 | 현대자동차주식회사 | Oil temperature control device of oil filter |
| KR100783886B1 (en) * | 2006-11-13 | 2007-12-10 | 현대자동차주식회사 | Oil filter for vehicle |
| JP2008514390A (en) * | 2004-09-24 | 2008-05-08 | グリーンオイル スタンダード アンパーツゼルスカブ | Liquid regeneration unit including a filter unit and a heating unit |
| JP2009236053A (en) * | 2008-03-27 | 2009-10-15 | Honda Motor Co Ltd | Cooling system of internal combustion engine |
| CN102011665A (en) * | 2010-09-03 | 2011-04-13 | 高志男 | Fuel oil heater of fuel oil filters |
| WO2011058650A1 (en) * | 2009-11-13 | 2011-05-19 | トヨタ自動車株式会社 | Lubrication system of internal combustion engine |
| KR101154578B1 (en) | 2005-12-12 | 2012-06-08 | 현대자동차주식회사 | Temperature adjuster of engine oil |
-
1999
- 1999-04-16 JP JP11108706A patent/JP2000297622A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050040320A (en) * | 2003-10-28 | 2005-05-03 | 현대자동차주식회사 | Oil temperature control device of oil filter |
| JP2008514390A (en) * | 2004-09-24 | 2008-05-08 | グリーンオイル スタンダード アンパーツゼルスカブ | Liquid regeneration unit including a filter unit and a heating unit |
| KR101154578B1 (en) | 2005-12-12 | 2012-06-08 | 현대자동차주식회사 | Temperature adjuster of engine oil |
| KR100783886B1 (en) * | 2006-11-13 | 2007-12-10 | 현대자동차주식회사 | Oil filter for vehicle |
| JP2009236053A (en) * | 2008-03-27 | 2009-10-15 | Honda Motor Co Ltd | Cooling system of internal combustion engine |
| WO2011058650A1 (en) * | 2009-11-13 | 2011-05-19 | トヨタ自動車株式会社 | Lubrication system of internal combustion engine |
| JP5293835B2 (en) * | 2009-11-13 | 2013-09-18 | トヨタ自動車株式会社 | Internal combustion engine lubrication system |
| CN102011665A (en) * | 2010-09-03 | 2011-04-13 | 高志男 | Fuel oil heater of fuel oil filters |
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