JPH03246311A - Automatic supply method of lubricating oil for engine - Google Patents

Automatic supply method of lubricating oil for engine

Info

Publication number
JPH03246311A
JPH03246311A JP4390390A JP4390390A JPH03246311A JP H03246311 A JPH03246311 A JP H03246311A JP 4390390 A JP4390390 A JP 4390390A JP 4390390 A JP4390390 A JP 4390390A JP H03246311 A JPH03246311 A JP H03246311A
Authority
JP
Japan
Prior art keywords
lubricating oil
oil
engine
tank
amount
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.)
Granted
Application number
JP4390390A
Other languages
Japanese (ja)
Other versions
JPH07101001B2 (en
Inventor
Fumio Yamashita
文男 山下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP4390390A priority Critical patent/JPH07101001B2/en
Publication of JPH03246311A publication Critical patent/JPH03246311A/en
Publication of JPH07101001B2 publication Critical patent/JPH07101001B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/061Means for keeping lubricant level constant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N2270/00Controlling
    • F16N2270/10Level
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N2280/00Valves
    • F16N2280/02Valves electromagnetically operated

Abstract

PURPOSE:To eliminate wasteful supply of lubricating oil by calculating specific lubricating oil consumption from the integrated running hour for consuming an effective oil quantity when the lubricating oil quantity in an oil pan reaches a specific lower limit value, and supplying oil based on the calculated value and the remaining time up to the lubricating oil exchange time. CONSTITUTION:A sub-tank 2 for lubricating oil connected with an oil pan 4 through a supply passage 3 provided with a solenoid valve 5 thereon is provided on the outside of an engine main body 1, and the crank case 8 and the upper space of the sub-tank 2 are communicatedly connected through a balance pipe 9, so as to efficiently supply lubricating oil from the sub-tank 2 to the oil pan 4 in a short time. When the lubricating oil quantity in the oil pan is detected to reach a specific lower limit value by the output from an oil level detecting sensor 6, specific lubricating oil consumption is calculated from the integrated running hour for consuming an effective oil quantity by a supply control means 7, and the solenoid valve 5 is controlled based on the lubricating oil supply quantity obtained from multiplication of the value with the remaining time up to the lubricating oil exchange time.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、コ・ジェネレーションシステムやヒートポン
プシステム等に使用されているエンジンのように、長時
間無人で連続運転されるエンジンへの潤滑油の補給方法
に関する。
Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to the application of lubricating oil to engines that are continuously operated unmanned for long periods of time, such as those used in cogeneration systems and heat pump systems. Concerning replenishment methods.

(従来技術) 一般にエンジンでは、運転に伴い潤滑油がブローバイガ
スとともにエンジン外に排出されたり、オイル上がりで
排気ガスとともにエンジン外に排出されたりすることか
ら、潤滑油が消費される。
(Prior Art) In general, in an engine, lubricating oil is consumed as the lubricating oil is discharged out of the engine along with blow-by gas, or is discharged out of the engine together with exhaust gas when the oil is drained.

このため、一定運転時間ごとに潤滑油を補給するように
しているのであるが、潤滑油の消費量は、エンジンの使
用条件やエンジンの個体差によって消費率にバラツキが
あり、規定補給時の前にオイル切れを生じることがある
。また、潤滑油は燃料油が混入して希釈されたり、摺動
部での摩耗により削り取られた金属粉やエンジン燃焼に
より発生したカーボンが混入したりすることから、エン
ジンの運転に伴ってその性能が劣化することから、所定
の時間を定めて潤滑油を交換するようにしている。
For this reason, lubricating oil is replenished at regular intervals of operation, but the consumption rate varies depending on engine usage conditions and individual engine differences, and lubricating oil consumption varies before the scheduled replenishment time. This may cause oil to run out. In addition, lubricating oil is diluted by fuel oil, metal powder scraped off by wear on sliding parts, and carbon generated by engine combustion, so its performance changes as the engine operates. Since lubricating oil deteriorates, the lubricating oil must be replaced at specified intervals.

このため、無人の状態で長時間に亘って連続運転される
コ・ジェネレーション/ステム等に使用されているエン
ジンでは、ノーオペレーションで長時間運転できるよう
にするために、潤滑油消費率及び潤滑油の性能劣化率等
を基準にしてオイルパンでの潤滑油容量を増大させて潤
滑油交換サイクルを長期化させるとともに、オイルパン
内の油量を検出して作動する警報装置を付けて潤滑油量
が規定値を下回った際に警報を発するようにしていた。
For this reason, in engines used in cogeneration/stem systems, etc. that operate continuously for long periods of time unattended, the lubricating oil consumption rate and lubricating oil In addition to increasing the lubricating oil capacity in the oil pan based on the performance deterioration rate of An alarm was issued when the value fell below a specified value.

(解決しようとする課題) ところが、警報装置を付設して、オイル減少警報が発動
されても、実際に潤滑油の補給が行われなければオイル
切れによるエンジン不調を防止することははできず、完
全な対策にはなり得なかった。また、オイルパン内に収
容する潤滑油容量はエンジンの潤滑油消費率、潤滑油劣
化率を基準にして、所定時間運転後の潤滑油交換時に下
限規定値を保てるように算出されているのであるが、潤
滑油消費率はエンジンの使用条件やエンジンの個体差に
より、同一ではないことから、規定時間到違前にオイル
パン内油量が下限規定値を下回ることがある。このとき
、潤滑油を補給するのであるが、この補給量が多いと、
潤滑油交換時に廃棄する潤滑油量が多くなり、不経済で
あるという問題があった。
(Problem to be solved) However, even if a warning device is installed and an oil low alarm is activated, engine malfunctions due to oil shortage cannot be prevented unless lubricating oil is actually replenished. It could not be a perfect solution. In addition, the lubricating oil capacity stored in the oil pan is calculated based on the engine's lubricating oil consumption rate and lubricating oil deterioration rate so that the lower limit value can be maintained when changing the lubricating oil after a specified period of operation. However, since the lubricating oil consumption rate is not the same depending on engine usage conditions and individual engine differences, the oil amount in the oil pan may fall below the lower limit specified value before the specified time is reached. At this time, lubricating oil is replenished, but if the amount of replenishment is large,
There is a problem in that a large amount of lubricating oil is discarded when replacing the lubricating oil, which is uneconomical.

本発明は、このような点に着目してなされたもので、本
発明は設定された潤滑油交換時期に下限規定量の潤滑油
を廃棄できるように、途中の潤滑油補給量を制御して自
動給油することのできる潤滑システムを提供することを
目的とする。
The present invention has been made with attention to these points, and the present invention controls the amount of lubricant replenishment in the middle so that the lower limit specified amount of lubricant can be discarded at the set lubricant replacement time. The purpose of the present invention is to provide a lubrication system capable of automatic lubrication.

(課題を解決するための手段) 上述の目的を達成するために、本発明は、オイルパン内
での潤滑油量が下限規定値になったことを潤滑油面検出
手段が検出することに基づき、上限規定値から下限規定
値になるまでの積算時間から、実際の潤滑油消費率を算
出するとともに、あらかじめ設定されている潤滑油交換
時間までの残存時間を算出し、この潤滑油消費率と潤滑
油交換時間までの残存時間との積で潤滑油補給量を算出
して、この算出した潤滑油補給量をサブタンクからオイ
ルパンに自動給油するように構成したことを特徴として
いる。
(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention is based on the lubricating oil level detection means detecting that the lubricating oil amount in the oil pan has reached the lower limit specified value. , the actual lubricant consumption rate is calculated from the cumulative time from the upper limit specified value to the lower limit specified value, and the remaining time until the preset lubricant change time is calculated, and this lubricant consumption rate and The system is characterized in that the lubricating oil replenishment amount is calculated by multiplying the remaining time until the lubricating oil replacement time, and the calculated lubricating oil replenishment amount is automatically refilled from the sub-tank to the oil pan.

(作  用) 本発明では、上限規定値と下限規定値との間の油量、即
ち消費される油量を有効油量とし、オイルパン内での潤
滑油量が下限規定値になったことを潤滑油面検出手段が
検出することに基づき、有効油量を消費した積算運転時
間から、実際の潤滑油消費率を算出するとともに、あら
かじめ設定されている潤滑油交換時間までの残存時間を
算出し、この潤滑油消費率と潤滑油交換時間までの残存
時間との積で潤滑油補給量を算出して、この算出した潤
滑油補給量をサブタンクからオイルパンに自動給油する
ように構成しているので、潤滑油の全量交換としてあら
かじめ設定されている規定時間に達した際には、オイル
パン内の潤滑油量は下限規定値になっており、廃棄され
る潤滑油量は無駄のない量になる。
(Function) In the present invention, the amount of oil between the upper limit specified value and the lower limit specified value, that is, the amount of oil consumed, is defined as the effective oil amount, and it is determined that the amount of lubricating oil in the oil pan has reached the lower limit specified value. Based on the detection by the lubricant level detection means, the actual lubricant consumption rate is calculated from the cumulative operating time during which the effective oil amount was consumed, and the remaining time until the preset lubricant change time is calculated. Then, the lubricant replenishment amount is calculated by multiplying this lubricant consumption rate and the remaining time until the lubricant replacement time, and the calculated lubricant replenishment amount is automatically refilled from the sub tank to the oil pan. Therefore, when the specified time set in advance for replacing the entire amount of lubricating oil has been reached, the amount of lubricating oil in the oil pan has reached the lower limit specified value, and the amount of lubricating oil that is discarded is an amount that will not be wasted. become.

(実施例) 第1図は本発明方法に係る補給方法のフローチャート、
第2図は潤滑油補給装置の概略構成図である。
(Example) FIG. 1 is a flowchart of a replenishment method according to the method of the present invention,
FIG. 2 is a schematic diagram of the lubricating oil supply device.

このエンジンはコ・ジェネレーションシステムに使用さ
れるものであって、エンジン本体(1)の外部に潤滑油
のサブタンク(2)を有している。このサブタンク(2
)は潤滑油補給路(3)を介してエンジン(1)のオイ
ルパン(4)に連通されており、この潤滑油補給路(3
)に補給路開閉制御用の電磁弁(5)が配置されている
。また、オイルパン(4)にはオイルパン内での潤滑油
レベルを検出する潤滑油面検出センサー(6)が配置し
である。そして、電磁弁(5)は潤滑油補給制御手段(
7)からの指令に基づき開閉弁作動するようになってい
る・そして、サブタンク(2)がらオイルパン(4)へ
の潤滑油供給を短時間に効率よく行えるようにするため
、エンジン(1)のクランク室(8)とサブタンク(2
)の上部空間とをバランスパイプ(9)で連通しである
。第3図は潤滑油量と流下時間との関[示し、第3図中
実線はクランク室(8)とサブタンク(2)の上部空間
とをバランスパイプ(9)で連通した場合、破線はクラ
ンク室(8)とサブタンク(2)とを連通させない場合
を示しており、このグラフから、クランク(8)とサブ
タンク(2)の上部空間とを連通させた場合、サブタン
ク(2)の内圧がクランク室(8)内と同圧になること
から、サブタンク(2)内に貯溜されている潤滑油はヘ
ッド圧で短時間に流下するが、クランク室(8)とサブ
タンク(2)とを連通させない場合には、クランク室(
8)の内圧が潤滑油補給路(3)に背圧として作用する
ことから、その流下時間か長くなることが解る。また、
サブタンク(2)には潤滑油の油温を検出する温度セン
サー(10)が配置しである。
This engine is used in a co-generation system and has a lubricating oil sub-tank (2) outside the engine body (1). This sub tank (2
) is connected to the oil pan (4) of the engine (1) via a lubricating oil supply passage (3), and this lubricating oil supply passage (3)
) is provided with a solenoid valve (5) for controlling the opening and closing of the supply path. Further, a lubricant level detection sensor (6) is arranged in the oil pan (4) to detect the lubricant level within the oil pan. And the solenoid valve (5) is the lubricating oil replenishment control means (
The on-off valve operates based on commands from the engine (1). crank chamber (8) and sub-tank (2)
) is communicated with the upper space through a balance pipe (9). Figure 3 shows the relationship between the amount of lubricating oil and the flow time.The solid line in Figure 3 shows the relationship between the crank chamber (8) and the upper space of the sub-tank (2) through the balance pipe (9), and the broken line shows the relationship between the amount of lubricant and the flow time. This graph shows the case where the chamber (8) and the sub-tank (2) are not communicated, and from this graph, when the crank (8) and the upper space of the sub-tank (2) are communicated, the internal pressure of the sub-tank (2) is lower than that of the crank. Since the pressure is the same as that in the chamber (8), the lubricating oil stored in the sub-tank (2) flows down in a short time due to head pressure, but the crank chamber (8) and sub-tank (2) are not communicated with each other. In this case, the crank chamber (
It can be seen that since the internal pressure of 8) acts as back pressure on the lubricating oil supply path (3), its flow time becomes longer. Also,
A temperature sensor (10) is arranged in the sub-tank (2) to detect the temperature of lubricating oil.

潤滑油補給制御手段(7)は、エンジンの運転時間を積
算する運転時間積算部と、消費した潤滑油量を算出する
とともに、補給油量を演算する潤滑油量演算部とを有し
ており、潤滑油面検出センサー(6)からの曲面検出信
号は常時潤滑補給制御手段(7)に入力されている。ま
た、温度センサー(10)からの温度信号も潤滑油補給
制御手段(7)に入力されている。
The lubricating oil replenishment control means (7) has an operating time accumulating section that accumulates the operating time of the engine, and a lubricating oil amount calculating section that calculates the amount of consumed lubricating oil and the amount of replenishing oil. The curved surface detection signal from the lubricant level detection sensor (6) is constantly input to the lubrication supply control means (7). Furthermore, a temperature signal from the temperature sensor (10) is also input to the lubricating oil replenishment control means (7).

そして、エンジン(1)の運転にともないオイルパン(
4)内に貯溜されている潤滑油か消費されてオイルパン
(4)内での潤滑油面(L)か下限規定値(Lu)に達
すると(ステップSl)、運転時間積算部に積算されて
いる積算時間(T)か潤滑油を全量交換する設定時間(
To)に達しているか否かを判断する(ステップS2)
。そして積算時間(T)が設定時間(T O)よりも長
い場合には、オイル交換を行うように指令を発する(ス
テップS3)。また、積算時間(T)が設定時間(T 
o)よりも短い時には、規定上限油量と規定下限油量と
の差、即ち有効油量(Q o)を積算時間(T)で除し
て、潤滑油消費率を算出するとともに、この潤滑油消費
率に設定時間(To)と積算時間(T)との差の時間を
かけて補給する潤滑油量(Q)を算出する(ステップS
4)。
As the engine (1) operates, the oil pan (
4) When the lubricating oil stored in the oil pan (4) is consumed and the lubricating oil level (L) in the oil pan (4) reaches the lower limit specified value (Lu) (step Sl), it is accumulated in the operating time accumulating section. The accumulated time (T) or the set time for completely replacing the lubricating oil (
To) is reached (step S2)
. If the cumulative time (T) is longer than the set time (TO), a command is issued to change the oil (step S3). Also, if the cumulative time (T) is the set time (T
o), the lubricating oil consumption rate is calculated by dividing the difference between the specified upper limit oil amount and the specified lower limit oil amount, that is, the effective oil amount (Q o), by the cumulative time (T). Calculate the amount of lubricating oil (Q) to be replenished by multiplying the oil consumption rate by the difference between the set time (To) and the cumulative time (T) (Step S
4).

次に電磁弁(5)を開弁じてサブタンク(2)からステ
ップS4で算出された潤滑油量(Q)の補給用潤滑油を
オイルパン(4)に補給するのであるが、潤滑油はその
油温により粘度が変動して流下時間が変化することから
、温度検出センサー(10)からの潤滑油温に基づき、
電磁弁(5)を開弁保持する時間(MO)を算出しくス
テップS5)、電磁弁(5)を開弁作動させる(ステッ
プS6)。
Next, the solenoid valve (5) is opened to replenish the oil pan (4) with the lubricant amount (Q) calculated in step S4 from the sub-tank (2). Since the viscosity changes depending on the oil temperature and the flow time changes, based on the lubricating oil temperature from the temperature detection sensor (10),
The time (MO) for holding the solenoid valve (5) open is calculated (step S5), and the solenoid valve (5) is operated to open (step S6).

開弁時間(M)が算出開弁時間(M、)に達したか否か
を判断しくステップS7)、開弁時間(M)か算出開弁
時間(M O)に達すると、電磁弁(5)を閉弁作動さ
せる(ステップS8)。
It is determined whether or not the valve opening time (M) has reached the calculated valve opening time (M,) (step S7). When the valve opening time (M) reaches the calculated valve opening time (MO), the solenoid valve ( 5) is operated to close the valve (step S8).

第4図は本発明の別実施例を示し、これは、エンジン本
体(1)の外部に潤滑油のサブタンク(2)を配置する
とともに、廃油タンク(11)を配置し、このサブタン
ク(2)とエンジン(1)のオイルパン(4)を潤滑油
補給路(3)で連通するとともに、オイルパン(4)の
底部と廃油タンク(11)とを潤滑油排出路(12)で
連通し、この潤滑油補給路(3)に潤滑油供給ポンプ(
13)を、また潤滑油排出路(12)に潤滑油排出ポン
プ(14)をそれぞれ配置したものでアリ、オイルパン
(4)にはオイルパン内での潤滑油レベルを検出する潤
滑油面検出センサー(6)か、また、サブタンク(2)
には補給用潤滑油量を検出するレベルセンサー(15)
がそれぞれ配置しである。
FIG. 4 shows another embodiment of the present invention, in which a lubricating oil sub-tank (2) is disposed outside the engine body (1), and a waste oil tank (11) is disposed, and this sub-tank (2) is disposed outside the engine body (1). and an oil pan (4) of the engine (1) through a lubricant supply path (3), and a bottom of the oil pan (4) and a waste oil tank (11) through a lubricant discharge path (12), This lubricating oil supply path (3) is connected to the lubricating oil supply pump (
13) and a lubricating oil discharge pump (14) placed in the lubricating oil discharge path (12), respectively.The oil pan (4) has a lubricating oil level detection device that detects the lubricating oil level in the oil pan. Sensor (6) or sub tank (2)
There is a level sensor (15) that detects the amount of lubricant for replenishment.
are arranged respectively.

そして、両ポンプ(13)(14)は潤滑油補給制御手
段(7)からの指令に基づき作動作動するように構成し
である。
Both pumps (13) and (14) are configured to operate based on commands from the lubricating oil replenishment control means (7).

潤滑油補給制御手段(7)は、エンジンの運転時間を積
算する運転時間積算部と、消費した潤滑油量を算出する
とともに、補給油量を演算する潤滑油量演算部、及びエ
ンジンの運転パターンを記憶する記憶部とを有しており
、潤滑油面検出センサー(6)からの曲面検出信号は常
時潤滑補給制御手段(7)に入力されている。また、レ
ベルセンサー(15)からの温度信号も潤滑油補給制御
手段(7)に入力されている。
The lubricating oil replenishment control means (7) includes an operating time accumulating section for accumulating the operating time of the engine, a lubricating oil amount calculating section for calculating the consumed lubricating oil amount and the replenishing oil amount, and an engine operating pattern. The curved surface detection signal from the lubricant level detection sensor (6) is constantly input to the lubrication supply control means (7). Further, a temperature signal from the level sensor (15) is also input to the lubricating oil replenishment control means (7).

そして、この実施例では、前記制御プログラムにおける
ステップS3のオイル交換を次のような手順で行うよう
にしたものである。
In this embodiment, the oil exchange in step S3 in the control program is performed in the following manner.

即ち、潤滑油面検出センサー(6)が規定下限油面を検
出すると、運転時間積算部に積算されている積算時間(
T)が潤滑油を全量交換する設定時間(T、)に達して
いるか否かを判断する。そして積算時間(T)が設定時
間(T o)よりも長い場合には、曲面検出センサー(
6)が規定下限曲面を検出したタイミングが運転パター
ン記憶部に学習機能により記憶されている過去の運転パ
ターンのどの部分に対応するかを判断し、エンジンの運
転休止期間が長い時間帯を決定し、この長い運転休止時
間帯になると、潤滑油排出ポンプ(14)を作動させて
オイルパン(4)から廃油タンク(11)に潤滑油を排
出し、オイルパン(4)から潤滑油の排出が完了すると
、潤滑油供給ポンプ(13)を作動させて、サブタンク
(2)内に貯溜されている潤滑油をサブタンク(2)か
らオイルパン(4)に供給し、潤滑油を自動交換するこ
とになる。この場合、給油量はサブタンク(2)内の潤
滑油量を検出しているレベルセンサー(15)から潤滑
油補給制御手段(7)に入力している油面変動情報で油
量を検知し、オイルパン内での潤滑油面が規定上限に達
する油量を供給した段階て潤滑油供給ポンプ(13)を
停止させる。
That is, when the lubricating oil level detection sensor (6) detects the specified lower limit oil level, the cumulative time (
It is determined whether T) has reached the set time (T,) for completely replacing the lubricating oil. If the cumulative time (T) is longer than the set time (T o), the curved surface detection sensor (
6) determines which part of the past driving pattern stored in the driving pattern storage unit by the learning function corresponds to the timing when the specified lower limit curved surface is detected, and determines the time period during which the engine is not in operation for a long time. During this long period of non-operation, the lubricating oil discharge pump (14) is operated to discharge lubricating oil from the oil pan (4) to the waste oil tank (11), and the lubricating oil is discharged from the oil pan (4). Once completed, the lubricating oil supply pump (13) will be operated to supply the lubricating oil stored in the sub-tank (2) from the sub-tank (2) to the oil pan (4), and the lubricating oil will be automatically replaced. Become. In this case, the amount of oil to be supplied is determined by detecting the amount of oil based on the oil level fluctuation information input to the lubricating oil replenishment control means (7) from the level sensor (15) that detects the amount of lubricating oil in the sub-tank (2). The lubricating oil supply pump (13) is stopped when the lubricating oil level in the oil pan reaches the specified upper limit.

また、潤滑油面検出センサー(6)が規定下限油面を検
出した際の積算時間(T)が設定時間(T o)よりも
短い場合には、前記実施例と同様、潤滑油消費率を算出
するとともに、設定時間(T o)と積算時間(T)と
の差から、設定時間(To)までの残存時間を算出し、
この消費率と残存時間との積を補給量としてサブタンク
(2)から潤滑油をオイルパン(4)に供給するように
構成しである。
In addition, if the cumulative time (T) when the lubricating oil level detection sensor (6) detects the specified lower limit oil level is shorter than the set time (T o), the lubricating oil consumption rate is At the same time, the remaining time until the set time (To) is calculated from the difference between the set time (T o) and the cumulative time (T),
The lubricating oil is configured to be supplied from the sub-tank (2) to the oil pan (4) with the product of this consumption rate and remaining time as the replenishment amount.

なお、この実施例において、サブタンク(2)をオイル
パン(4)より高い位置に配置するとともに、廃油タン
ク(11)をオイルパン(4)より低い位置に配置し、
潤滑油補給路(3)、潤滑油排出路(12)にそれぞれ
電磁弁を配置して自然流下によって潤滑油の補給、交換
を行うようにしてもよい。
In addition, in this embodiment, the sub tank (2) is arranged at a higher position than the oil pan (4), and the waste oil tank (11) is arranged at a lower position than the oil pan (4).
A solenoid valve may be disposed in each of the lubricating oil supply path (3) and the lubricating oil discharge path (12) to replenish and replace the lubricating oil by natural flow.

(効  果) 本発明では、上−限規定値と下限規定値との間の油量、
即ち消費される油量を有効油量とし、オイルパン内での
潤滑油量が下限規定値になったことを潤滑油面検出手段
が検8することに基づき、有効油量を消費した積算運転
時間から、実際の潤滑油消費率を算出するとともに、あ
らかじめ設定されている潤滑油交換時間までの残存時間
を算出し、この潤滑油消費率と潤滑油交換時間までの残
存時間との積で潤滑油補給量を算出して、この算出した
潤滑油補給量をサブタンクからオイルパンに自動給油す
るように構成しているので、補給時には必要最低限の潤
滑油量のみか給油されることになり、潤滑油の全量交換
としてあらかじめ設定されている規定時間に達した際に
は、オイルパン内の潤滑油量は下限規定量になっており
、潤滑油の無駄な給油を無くすことかできる。
(Effect) In the present invention, the amount of oil between the upper limit specified value and the lower limit specified value,
In other words, the amount of oil consumed is taken as the effective oil amount, and based on the lubricating oil level detection means detecting that the amount of lubricating oil in the oil pan has reached the lower limit specified value, the cumulative operation that has consumed the effective oil amount is determined. Calculate the actual lubricant consumption rate from the time, calculate the remaining time until the preset lubricant change time, and calculate the product of this lubricant consumption rate and the remaining time until the lubricant change time to lubricate. The system is configured to calculate the amount of lubricant to be refilled and automatically refill the oil pan from the sub-tank with this calculated amount of lubricant, so only the minimum amount of lubricant required will be supplied when refilling. When the specified time set in advance for replacing the entire amount of lubricating oil has been reached, the amount of lubricating oil in the oil pan has reached the lower limit specified amount, and unnecessary replenishment of lubricating oil can be eliminated.

さらに、本第2発明では、設定時間に達すると、自動的
にオイル交換を行うことができる。
Furthermore, in the second aspect of the invention, when the set time is reached, the oil can be changed automatically.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明方法に係る補給方法の手順を示すフロー
チャート、第2図は潤滑油補給装置の概略構成図、第3
図は潤滑油温度と流下時間の関係を示す図、第4図は別
実施例の第2図相当図である。 1・・・エンジン、     2・・・潤滑油サブタン
ク、3・・・潤滑油補給路、   4・・・(1)のオ
イルパン、5・・・電磁弁、      6・・・曲面
検出センサー7・・・補給制御手段、  8・・クラン
ク室12・・潤滑油排出路、 13・・・補給路開閉作動具、 14・ 排出路開閉作動具。
FIG. 1 is a flowchart showing the procedure of the replenishment method according to the method of the present invention, FIG. 2 is a schematic diagram of the lubricant replenishment device, and FIG.
The figure shows the relationship between lubricating oil temperature and flow time, and FIG. 4 is a diagram corresponding to FIG. 2 of another embodiment. DESCRIPTION OF SYMBOLS 1... Engine, 2... Lubricating oil sub-tank, 3... Lubricating oil supply path, 4... (1) oil pan, 5... Solenoid valve, 6... Curved surface detection sensor 7. ... Replenishment control means, 8. Crank chamber 12. Lubricating oil discharge passage, 13. Replenishment passage opening/closing actuator, 14. Discharge passage opening/closing actuator.

Claims (1)

【特許請求の範囲】 1、エンジンのオイルパン内の潤滑油量が下限規定値に
達したことを潤滑油面検出手段で検出したことに基づき
サブタンクから潤滑油をオイルパン内に自動補給するエ
ンジンへの潤滑油自動補給方法において、 サブタンクとオイルパンとを連通する潤滑油補給路に電
磁弁を配置するともに、この電磁弁を潤滑油補給制御手
段で開閉制御可能に構成し、潤滑油補給制御手段は潤滑
油量演算部及びエンジン運転時間積算部とを有し、エン
ジン運転時間積算部はオイルパン内での潤滑油量が上限
規定値から下限規定値になるまでの運転時間を積算し、
潤滑油演算部は積算運転時間に基づき潤滑油消費率とあ
らかじめ設定されている潤滑油交換時間までの残存時間
とを算出するとともに、潤滑油消費率と潤滑油交換時間
までの残存時間との積で潤滑油補給量を算出し、潤滑油
補給制御手段は潤滑油演算部で算出した潤滑油補給量に
基づき電磁弁を開閉制御するように構成してあり、潤滑
油面検出手段での下限規定値検出作動に基づき、サブタ
ンクからオイルパンに所定量の潤滑油を自動給油するよ
うにしたことを特徴とするエンジンへの潤滑油自動補給
方法 2、エンジンのオイルパンよりも高い位置にサブタンク
を配置し、サブタンクとオイルパンとを潤滑油補給路で
連通するとともに、エンジンのクランク室をサブタンク
の上部に連通させ、サブタンク内に貯溜されている補給
用潤滑油を自然流下により、オイルパンに補給するよう
に構成した請求項1に記載のたエンジンへの潤滑油自動
補給方法 3、サブタンクの補給用潤滑油温を検出し、この補給用
潤滑油温に基づき電磁弁の開弁時間を算出するように構
成した請求項1または2に記載のエンジンへの潤滑油自
動補給方法 4、エンジンのオイルパン内の潤滑油量が下限規定値に
達したことを潤滑油面検出手段で検出することに基づき
サブタンクから潤滑油をオイルパン内に自動補給するエ
ンジンへの潤滑油自動補給方法において、 オイルパンとサブタンクとを連通する潤滑油補給路に補
給路開閉作動具を配置するとともに、オイルパンから潤
滑油排出路を導出し、この潤滑油排出路に排出路開閉作
動具を配置して、この両開閉作動具を潤滑油補給制御手
段で作動制御可能に構成し、潤滑油補給制御手段は運転
パターンの記憶部と潤滑油量演算部及びエンジン運転時
間積算部とを有し、エンジン運転時間積算部はオイルパ
ン内での潤滑油量が上限規定値から下限規定値になるま
での運転時間を積算し、運転パターン記憶部は潤滑油面
検出手段が下限規定値を検出するまでのエンジン運転パ
ターンを記憶し、潤滑油量演算部はエンジン運転積算部
に積算された積算運転時間とあらかじめ設定されている
潤滑油交換時間とから、潤滑油消費率と潤滑油交換時間
までの残存時間とを算出するとともに、この算出した潤
滑油消費率と残存時間との積で得られた潤滑油補給量を
演算するように構成してあり、潤滑油補給制御手段は潤
滑油面検出手段が下限規定値を検出した際、積算運転時
間が潤滑油交換時間より長い場合には、運転パターン記
憶部に記憶されている運転パターンでの休止時間の長い
期間に、排出路を開通させてオイルパン内の潤滑油を排
出したのち、潤滑油補給路を開通させて潤滑油交換を行
うとともに、積算運転時間が潤滑油交換時間よりも短い
場合には、潤滑油補給路を開通させて潤滑油量演算部で
算出された潤滑油補給量の潤滑油をサブタンクからオイ
ルパンへ自動供給するように構成したエンジンへの潤滑
油自動補給方法
[Claims] 1. An engine that automatically replenishes lubricating oil from a sub-tank into an oil pan based on a lubricating oil level detection means detecting that the lubricating oil amount in the engine's oil pan has reached the lower limit specified value. In the automatic lubricant replenishment method, a solenoid valve is arranged in a lubricant replenishment path that communicates between the sub-tank and the oil pan, and this solenoid valve is configured to be open/close controlled by a lubricant replenishment control means, and the lubricant replenishment control means The means has a lubricating oil amount calculating section and an engine operating time integrating section, and the engine operating time integrating section integrates the operating time until the amount of lubricating oil in the oil pan becomes from an upper limit specified value to a lower limit specified value,
The lubricant calculation unit calculates the lubricant consumption rate and the remaining time until the preset lubricant change time based on the cumulative operating time, and also calculates the product of the lubricant consumption rate and the remaining time until the lubricant change time. The lubricating oil replenishment amount is calculated by the lubricating oil replenishment amount, and the lubricating oil replenishment control means is configured to control the opening and closing of the solenoid valve based on the lubricating oil replenishment amount calculated by the lubricating oil calculation section, and the lubricating oil replenishment control means is configured to control the opening and closing of the solenoid valve based on the lubricating oil replenishment amount calculated by the lubricating oil calculation section. Method 2 for automatically replenishing lubricating oil to an engine, characterized in that a predetermined amount of lubricating oil is automatically supplied from a sub-tank to an oil pan based on a value detection operation, and the sub-tank is placed at a higher position than the oil pan of the engine. The sub-tank and oil pan are communicated through a lubricating oil supply path, and the engine crank chamber is communicated with the upper part of the sub-tank, so that the lubricating oil stored in the sub-tank is supplied to the oil pan by gravity. A method for automatically replenishing lubricating oil to an engine according to claim 1, wherein the temperature of the replenishing lubricating oil in the sub-tank is detected, and the opening time of the solenoid valve is calculated based on the temperature of the replenishing lubricating oil. 4. A method for automatically replenishing lubricating oil to an engine according to claim 1 or 2, wherein the lubricating oil level detection means detects that the amount of lubricating oil in the oil pan of the engine has reached a lower limit specified value. In an automatic lubricating oil replenishment method for an engine that automatically replenishes lubricating oil from a sub-tank into an oil pan, a replenishment path opening/closing device is placed in the lubricant replenishing path that communicates the oil pan and sub-tank, and a lubricant is removed from the oil pan. A discharge passage is drawn out, a discharge passage opening/closing actuator is disposed in this lubricating oil discharge passage, and the operation of both opening/closing actuators is configured to be controllable by a lubricating oil replenishment control means, and the lubricating oil replenishment control means is adapted to control the operation pattern. It has a storage section, a lubricating oil amount calculating section, and an engine operating time integrating section, and the engine operating time integrating section integrates the operating time until the amount of lubricating oil in the oil pan becomes from an upper limit specified value to a lower limit specified value. The operation pattern storage section stores the engine operation pattern until the lubricating oil level detection means detects the lower limit specified value, and the lubricating oil amount calculation section is preset with the cumulative operating time accumulated in the engine operation accumulating section. From the lubricating oil change time, calculate the lubricating oil consumption rate and the remaining time until the lubricating oil change time, and calculate the lubricating oil replenishment amount obtained by multiplying the calculated lubricating oil consumption rate and the remaining time. When the lubricating oil level detecting means detects the lower limit specified value and the cumulative operating time is longer than the lubricating oil replacement time, the lubricating oil replenishment control means stores the operation pattern in the operating pattern storage section. During periods of long downtime in the operating pattern, the drain path is opened to drain the lubricating oil in the oil pan, and then the lubricating oil supply path is opened to replace the lubricating oil. lubricating oil to the engine configured to open the lubricating oil supply path and automatically supply lubricating oil of the lubricating oil supply amount calculated by the lubricating oil amount calculation unit from the sub tank to the oil pan if it is shorter than the specified time. Automatic replenishment method
JP4390390A 1990-02-23 1990-02-23 How to automatically add lubricating oil to the engine Expired - Fee Related JPH07101001B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4390390A JPH07101001B2 (en) 1990-02-23 1990-02-23 How to automatically add lubricating oil to the engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4390390A JPH07101001B2 (en) 1990-02-23 1990-02-23 How to automatically add lubricating oil to the engine

Publications (2)

Publication Number Publication Date
JPH03246311A true JPH03246311A (en) 1991-11-01
JPH07101001B2 JPH07101001B2 (en) 1995-11-01

Family

ID=12676673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4390390A Expired - Fee Related JPH07101001B2 (en) 1990-02-23 1990-02-23 How to automatically add lubricating oil to the engine

Country Status (1)

Country Link
JP (1) JPH07101001B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005028821A1 (en) * 2003-09-16 2005-03-31 Hans Joachim Burmester Method and device for obtaining optimum lubricant properties while completely dispensing with oil changes in internal combustion engines
JP2009228573A (en) * 2008-03-24 2009-10-08 Yanmar Co Ltd Engine system monitor device
CN115076588A (en) * 2022-06-14 2022-09-20 珠海格力智能装备有限公司 Control method, device and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005028821A1 (en) * 2003-09-16 2005-03-31 Hans Joachim Burmester Method and device for obtaining optimum lubricant properties while completely dispensing with oil changes in internal combustion engines
JP2009228573A (en) * 2008-03-24 2009-10-08 Yanmar Co Ltd Engine system monitor device
CN115076588A (en) * 2022-06-14 2022-09-20 珠海格力智能装备有限公司 Control method, device and system
CN115076588B (en) * 2022-06-14 2024-01-23 珠海格力智能装备有限公司 Control method, device and system thereof

Also Published As

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