JPS6033286Y2 - Internal combustion engine lubrication system - Google Patents
Internal combustion engine lubrication systemInfo
- Publication number
- JPS6033286Y2 JPS6033286Y2 JP16521880U JP16521880U JPS6033286Y2 JP S6033286 Y2 JPS6033286 Y2 JP S6033286Y2 JP 16521880 U JP16521880 U JP 16521880U JP 16521880 U JP16521880 U JP 16521880U JP S6033286 Y2 JPS6033286 Y2 JP S6033286Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- oil
- engine
- lubricating
- internal combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
【考案の詳細な説明】
この考案は、オイルパン内に昇温装置を設けた内燃機関
の潤滑装置に関する。[Detailed Description of the Invention] This invention relates to a lubricating device for an internal combustion engine that includes a temperature raising device in an oil pan.
一般に内燃機関の潤滑装置は概略第１図に示すように構
成されている。Generally, a lubricating system for an internal combustion engine is constructed as schematically shown in FIG.
即ち、１はオイルパン、２はオイルポンプ、３は圧力が
所定値以上に高くならないようにする調圧弁、４はオイ
ルフィルタ、５はメインギヤラリ、６はオイルフィルタ
４が目詰りした際に開弁するリリーフ弁であって、潤滑
油はオイルポンプ２によりオイルパン１内の吸引ロアか
ら吸引され、メインギヤラリ５等を通して機関各部へ圧
送され、各部摩擦箇所の潤滑ならびに冷却を行った後、
暖まった状態でオイルパン１に戻る。Namely, 1 is an oil pan, 2 is an oil pump, 3 is a pressure regulating valve that prevents the pressure from rising above a predetermined value, 4 is an oil filter, 5 is a main gear rally, and 6 is a valve that opens when the oil filter 4 becomes clogged. Lubricating oil is sucked from the suction lower in the oil pan 1 by the oil pump 2, and is sent under pressure to each part of the engine through the main gear rally 5 etc. After lubricating and cooling the friction points of each part,
Return to oil pan 1 when it is warm.
そしてオイルパン１で一時滞留し、ここで自然放熱によ
り冷却されて再び機関各部へと循環されるのである。The oil then temporarily stagnates in the oil pan 1, where it is cooled by natural heat radiation and circulated again to each part of the engine.
ところで、このような潤滑装置にあっては、機関の冷却
始動時に、潤滑油が十分に暖まるまでかなりの時間を要
する。By the way, in such a lubricating device, it takes a considerable amount of time until the lubricating oil is sufficiently warmed up when the engine is started to cool down.
そのため、潤滑油温度が低い状態ではオイル粘度が高い
ので摩擦損失が大となり、従って始動時の燃料消費が大
きく、かつエミッションや運転性の悪化した状態が始動
後かなりの時間続いてしまう。Therefore, when the lubricating oil temperature is low, the oil viscosity is high, resulting in large friction loss, resulting in large fuel consumption at startup, and poor emissions and drivability that continue for a considerable period of time after startup.
またオイルパンに機関冷却水（温水）を流通させて加温
を行うようにしたもの（例えば実開昭５５−９０７１１
号公報）もあるが冷却水自体が暖まるまで相当に時間が
掛かるので、やはり迅速な油温上昇は望めない。Also, the oil pan is heated by circulating engine cooling water (warm water) (for example, Utility Model No. 55-90711
(No. 3), but it takes a considerable amount of time for the cooling water itself to warm up, so a quick rise in oil temperature cannot be expected.
そこで、潤滑油を排気熱によって暖める昇温装置をオイ
ルパンに設け、始動時に潤滑油の迅速な昇温を図るよう
にした潤滑装置が提案されている。Therefore, a lubricating device has been proposed in which a temperature raising device that warms the lubricating oil using exhaust heat is provided in the oil pan to quickly raise the temperature of the lubricating oil at the time of startup.
しかしながら、このように排気を加熱源とする昇温装置
を設けた場合、機関の運転状態等によって逆に潤滑油が
過度に高温となってしまい潤滑部の焼は付き原因となっ
てしまう惧れがあった。However, when such a temperature raising device is installed that uses the exhaust gas as a heating source, there is a risk that the lubricating oil may become excessively hot depending on the operating conditions of the engine, causing seizure of the lubricated parts. was there.
この考案は上記のような実情に鑑みてなされたもので、
排気の導入による昇温装置を設けた内燃機関の潤滑装置
において、機関内の冷却水路から分岐してオイルパンを
通過する潤滑油冷却用の冷却水通路を設けるとともに、
潤滑油温を感知して所定温度以上で開となる開閉弁を上
記冷却水通路に介装し、潤滑油を強制冷却することによ
って、その過度の昇温を防止することを目的とする。This idea was made in view of the above-mentioned circumstances.
In a lubricating system for an internal combustion engine equipped with a temperature raising device by introducing exhaust gas, a cooling water passage for cooling lubricating oil is provided that branches from a cooling water passage in the engine and passes through an oil pan, and
An on-off valve that senses the lubricating oil temperature and opens when the temperature exceeds a predetermined temperature is installed in the cooling water passage, and the lubricating oil is forcibly cooled to prevent its temperature from rising excessively.
以下、この考案の一実施例を図面に基づいて詳細に説明
する。Hereinafter, one embodiment of this invention will be described in detail based on the drawings.
第２図はこの考案を適用した内燃機関の側面図であって
、機関１１の下部に潤滑油を貯留するオイルパン１２が
設けられているが、このオイルパン１２には、潤滑油の
昇温装置として、シリンダヘッド１３に接続する排気通
路１４から分岐した排気バイパス通路１５が貫通し、か
つ第３図に示すように微細なチューブ１６ａおよびフィ
ン１６ｂからなる熱交換器１６が介装されている。FIG. 2 is a side view of an internal combustion engine to which this invention is applied. An oil pan 12 for storing lubricating oil is provided at the bottom of the engine 11. As a device, an exhaust bypass passage 15 branching from an exhaust passage 14 connected to the cylinder head 13 passes through the exhaust passage, and a heat exchanger 16 consisting of fine tubes 16a and fins 16b is interposed as shown in FIG. .
上記排気バイパス通路１５へ導入する排気量の制御は、
例えば、排気通路１４の分岐点１４ａ下流に開閉弁（図
示せず）を設け、これを絞り込むことによって排気バイ
パス通路１５へ迂回させる排気量を増大させるようにな
っており、この開閉弁は例えば機関吸入負圧を作動源と
するアクチュエータやソレノイド等によって駆動される
。Control of the amount of exhaust gas introduced into the exhaust bypass passage 15 is as follows:
For example, an on-off valve (not shown) is provided downstream of the branch point 14a of the exhaust passage 14, and by narrowing the valve, the amount of exhaust gas detoured to the exhaust bypass passage 15 is increased. It is driven by an actuator, solenoid, etc. that uses suction negative pressure as its operating source.
このように排気を加熱源として潤滑油の昇温を行うこと
により、機関通過後の冷却水（温水）を加熱源とするも
のに比べて始動後直ちに迅速かつ強力な加熱を行うこと
ができる。By raising the temperature of the lubricating oil using the exhaust gas as a heating source in this manner, it is possible to quickly and powerfully heat the lubricating oil immediately after starting, compared to a system that uses cooling water (warm water) after passing through the engine as a heating source.
また上記オイルパン１２には、機関１１内のウォータジ
ャケット等の冷却水路から分岐した冷却水通路１７が上
記排気バイパス通路１５に並んで貫通し、この冷却水通
路１７には排気バイパス通路１５と同様に微細なチュー
ブ１８ａおよびフィン１８ｂからなる熱交換器１８が介
装されている。Further, a cooling water passage 17 branched from a cooling water passage such as a water jacket in the engine 11 runs through the oil pan 12 in line with the exhaust bypass passage 15. A heat exchanger 18 consisting of fine tubes 18a and fins 18b is interposed.
そして、上記冷却水通路１７の途中に第４図に示す如く
、開閉弁２０およびこれを開閉駆動する感温装置２１か
らなる流量制御装置１９が構成されており、潤滑油温に
感応するサーモワックス２２の作用によって、潤滑油の
低温時にはスプリング２３力を受けて開閉弁２０は閉弁
し、また所定の温度以上に昇温するとサーモワックス２
２が急激に膨張して開閉弁２０を開弁せしめる。As shown in FIG. 4, in the middle of the cooling water passage 17, a flow rate control device 19 consisting of an on-off valve 20 and a temperature-sensing device 21 that opens and closes the valve is constructed, and a thermo-wax sensor that is sensitive to the temperature of the lubricating oil. 22, when the lubricating oil is at a low temperature, the on-off valve 20 closes under the force of the spring 23, and when the temperature rises above a predetermined temperature, the thermowax 2 closes.
2 rapidly expands and opens the on-off valve 20.
従って、上記開閉弁２０の開弁によって、冷却水通路１
７内には、機関１１のウォータポンプ２４により強制循
環される機関冷却水が多量に導入され、潤滑油の過度の
昇温を防止する。Therefore, by opening the on-off valve 20, the cooling water passage 1
A large amount of engine cooling water that is forcibly circulated by the water pump 24 of the engine 11 is introduced into the lubricating oil 7 to prevent excessive temperature rise of the lubricating oil.
以上の説明で明らかなように、この考案によれば、排気
を加熱源とした昇温装置によって、始動時に潤滑油を迅
速に昇温させることかでき、燃料消費やエミッション等
の改善が図れる。As is clear from the above description, according to this invention, the temperature of the lubricating oil can be quickly raised at the time of startup by using the temperature raising device using the exhaust gas as a heating source, thereby improving fuel consumption, emissions, etc.
そして、潤滑油が十分に暖まった後、必要以上に油温が
高くなったときには、オイルパン内の潤滑油を機関冷却
水の循環により強制冷却するので、オイルパン内に昇温
装置を設けた場合に生じ易い過度の昇温を防止でき、特
に昇温装置を油温に関係なくアイドリング時の機関吸入
負圧に基づき制御するような場合に好適であり、またこ
のように過度の昇温を防止できるため、機関始動時に上
記昇温装置によって急激に加温することが可能であり、
暖機時間の一層の短縮を図ることができる。After the lubricating oil has sufficiently warmed up, if the oil temperature becomes higher than necessary, the lubricating oil in the oil pan is forcibly cooled by circulation of engine cooling water, so a temperature raising device is installed in the oil pan. It is particularly suitable for controlling the temperature raising device based on engine suction negative pressure during idling, regardless of the oil temperature. Since this can be prevented, it is possible to rapidly heat the engine using the above temperature raising device when starting the engine.
The warm-up time can be further shortened.
第１図は一般的な潤滑装置の構成を概略的に示す構成説
明図、第２図はこの考案を適用した内燃機関の側面図、
第３図は熱交換器の一例を示す平面図、第４図は流量制
御装置の一例を示す構成説明図である。
１２・・・・・・オイルパン、１４・・・・・・排気通
路、１５・・・・・・排気バイパス通路、１６・・・・
・・熱交換器、１７・・・・・・冷却水通路、１８・・
・・・・熱交換器、１９・・・・・・流量制御装置、２
０・・・・・・開閉弁、２１・・・・・・感温装置。Fig. 1 is a configuration explanatory diagram schematically showing the configuration of a general lubricating device, and Fig. 2 is a side view of an internal combustion engine to which this invention is applied.
FIG. 3 is a plan view showing an example of a heat exchanger, and FIG. 4 is a configuration explanatory diagram showing an example of a flow rate control device. 12...Oil pan, 14...Exhaust passage, 15...Exhaust bypass passage, 16...
...Heat exchanger, 17...Cooling water passage, 18...
... Heat exchanger, 19 ... Flow rate control device, 2
0...Opening/closing valve, 21...Temperature sensing device.
Claims (1)
導入による昇温装置を設けた内燃機関の潤滑装置におい
て、機関内の冷却水路から分岐して上記オイルパンを通
過する潤滑油冷却用の冷却水通路を備えるとともに、潤
滑油温を感知して所定温度以上で開となる開閉弁を上記
冷却水通路に介装したことを特徴とする内燃機関の潤滑
装置。In a lubricating system for an internal combustion engine that has a temperature raising device by introducing exhaust gas into an oil pan at the bottom of the engine where lubricating oil is stored, a lubricating oil cooling system that branches from a cooling channel inside the engine and passes through the oil pan. 1. A lubricating device for an internal combustion engine, comprising: a cooling water passage; and an on-off valve that senses lubricating oil temperature and opens when the temperature exceeds a predetermined temperature is interposed in the cooling water passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16521880U JPS6033286Y2 (en) | 1980-11-18 | 1980-11-18 | Internal combustion engine lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16521880U JPS6033286Y2 (en) | 1980-11-18 | 1980-11-18 | Internal combustion engine lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5787108U JPS5787108U (en) | 1982-05-29 |
| JPS6033286Y2 true JPS6033286Y2 (en) | 1985-10-04 |
Family
ID=29523920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16521880U Expired JPS6033286Y2 (en) | 1980-11-18 | 1980-11-18 | Internal combustion engine lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6033286Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4789820B2 (en) * | 2007-01-31 | 2011-10-12 | アイシン精機株式会社 | Engine cooling system |
-
1980
- 1980-11-18 JP JP16521880U patent/JPS6033286Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5787108U (en) | 1982-05-29 |
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