KR102065258B1 - Method for monitoring flow rate of lubricating oil pump - Google Patents
Method for monitoring flow rate of lubricating oil pump Download PDFInfo
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- KR102065258B1 KR102065258B1 KR1020180080113A KR20180080113A KR102065258B1 KR 102065258 B1 KR102065258 B1 KR 102065258B1 KR 1020180080113 A KR1020180080113 A KR 1020180080113A KR 20180080113 A KR20180080113 A KR 20180080113A KR 102065258 B1 KR102065258 B1 KR 102065258B1
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- lubricating oil
- oil pump
- pump discharge
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- relief valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
Description
본 발명은 윤활유펌프 토출유량의 모니터링 방법에 관한 것으로서, 보다 상세하게는 다양한 조건의 펌프 토출압력과 릴리프밸브 개방압력에 대응되는 펌프 토출유량을 실측하여 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출하고, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 근거로 하여 실제 윤활시스템의 동작시 펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유 유량을 추정함으로써 윤활시스템의 상태를 모니터링할 수 있는 윤활유펌프 토출유량의 모니터링 방법에 관한 것이다. The present invention relates to a method for monitoring the discharge flow rate of the lubricating oil pump, and more specifically, to measure the pump discharge flow rate corresponding to the pump discharge pressure and the relief valve opening pressure under various conditions, and according to <lubricating oil pump discharge pressure and relief valve opening pressure Lubricating oil pump discharge flow rate> and lubricating oil corresponding to pump discharge pressure and relief valve opening pressure during operation of the actual lubrication system based on <Lubrication oil pump discharge flow rate according to lubricating oil pump discharge pressure and relief valve opening pressure> The present invention relates to a method for monitoring the discharge flow rate of a lubricating oil pump which can monitor the state of the lubrication system by estimating the flow rate.
엔진 운전시 윤활시스템의 상태를 판단하기 위해 엔진으로 공급되는 윤활유의 온도 및 압력에 대한 모니터링이 필요하다. 윤활시스템을 구성하는 베어링 등의 구동부품이나 윤활유 유로가 손상된 경우, 윤활시스템의 윤활유 압력 저하가 발생되고 이를 모니터링 시스템을 통해 감지하고 있다. 이와 같은 모니터링 시스템은 윤활부품의 손상이 진행된 이후에 감지하는 방식임에 따라, 윤활부품의 손상징후 감지 등의 예지보전(predictive maintenance) 기능을 수행할 수 없다. In order to determine the condition of the lubrication system during engine operation, monitoring of the temperature and pressure of the lubricant supplied to the engine is necessary. When the driving parts such as bearings and the lubricating oil flow passage that constitute the lubricating system are damaged, the lubricating oil pressure decreases in the lubricating system and is detected by the monitoring system. Since such a monitoring system detects damage after the lubrication component is in progress, it cannot perform predictive maintenance functions such as detection of damage signs of the lubrication component.
한편, 베어링, 윤활유 유로 등의 윤활부품이 손상된 경우, 일반적으로 윤활유 배출량이 증가하여 엔진으로 공급되는 윤활유 유량이 증가한다. 따라서, 엔진공급 윤활유 유량에 대한 모니터링은 윤활시스템의 상태 진단에 활용할 수 있다. On the other hand, when lubricating parts such as bearings and lubricating oil passages are damaged, the lubricating oil discharge is generally increased to increase the lubricating oil flow rate supplied to the engine. Therefore, monitoring of the engine supply lubricating oil flow rate can be utilized to diagnose the condition of the lubrication system.
그러나, 엔진 구동부품의 윤활 및 냉각을 담당하는 윤활시스템은 윤활유 유로가 엔진블록 및 피스톤, 커넥팅로드, 크랭크축 등의 구동부품 내에 위치하고 있어 윤활유 유량을 계측하기 어렵다. 또한, 엔진에 탑재된 윤활유 펌프는 펌프 토출압력에 의해 작동되는 릴리프밸브가 설치되어 있어 실제 펌프에서 토출되어 엔진으로 유입되는 윤활유 유량과 펌프유량(펌프용량) 사이에 차이가 존재한다. However, in the lubrication system that is responsible for lubrication and cooling of the engine driving parts, the lubricating oil flow path is located in the driving parts such as the engine block and the piston, the connecting rod, the crankshaft, and so it is difficult to measure the lubricating oil flow rate. In addition, the lubricating oil pump mounted on the engine is provided with a relief valve operated by the pump discharge pressure, there is a difference between the lubricating oil flow rate and the pump flow rate (pump capacity) discharged from the actual pump and introduced into the engine.
따라서, 이와 같은 종래 시스템에 있어서 윤활유 유량을 통해 윤활시스템의 상태 진단을 모니터링하고자 하더라도 실제 윤활유 유량을 계측할 수 없어 윤활시스템의 상태에 대해 정확히 진단할 수 없다. Therefore, even in such a conventional system, even if it is desired to monitor the diagnosis of the state of the lubrication system through the lubricating oil flow rate, the actual lubricating oil flow rate cannot be measured, and thus the state of the lubrication system cannot be accurately diagnosed.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 다양한 조건의 펌프 토출압력과 릴리프밸브 개방압력에 대응되는 펌프 토출유량을 실측하여 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출하고, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 근거로 하여 실제 윤활시스템의 동작시 펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유 유량을 추정함으로써 윤활시스템의 상태를 모니터링할 수 있는 윤활유펌프 토출유량의 모니터링 방법을 제공하는데 그 목적이 있다. The present invention has been made to solve the above problems, by measuring the pump discharge flow rate corresponding to the pump discharge pressure and the relief valve opening pressure of various conditions <lubricating oil pump discharge according to the lubricating oil pump discharge pressure and the relief valve opening pressure Flow rate map> and estimate the lubricating oil flow rate corresponding to the pump discharge pressure and the relief valve opening pressure during the operation of the actual lubrication system based on the <lubricating oil pump discharge flow rate according to the lubricating oil pump discharge pressure and the relief valve opening pressure> Therefore, the object of the present invention is to provide a method for monitoring the discharge flow rate of the lubricating oil pump, which can monitor the state of the lubricating system.
상기의 목적을 달성하기 위한 본 발명에 따른 윤활유펌프 토출유량의 모니터링 방법은 윤활유펌프를 포함하는 리그 시험장치를 준비하는 단계; 리그 시험장치를 대상으로 리그 시험(rig test)를 실시하여 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출하는 단계; 및 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여, 실제 윤활시스템 동작시의 윤활유펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유펌프 토출유량을 추정하는 단계;를 포함하여 이루어지는 것을 특징으로 한다. Method for monitoring the lubricating oil pump discharge flow rate in accordance with the present invention for achieving the above object comprises the steps of preparing a rig test apparatus comprising a lubricating oil pump; Performing a rig test on the rig test apparatus to derive a <lubricating oil pump discharge flow rate map according to the lubricating oil pump discharge pressure and the relief valve opening pressure>; And estimating the lubricating oil pump discharge flow rate corresponding to the lubricating oil pump discharge pressure and the relief valve opening pressure during the actual lubrication system operation based on the <lubricating oil pump discharge pressure and the relief valve opening pressure map according to the relief valve opening pressure>. Characterized in that comprises a.
<윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여, 실제 윤활시스템 동작시의 윤활유펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유펌프 토출유량을 추정하는 단계; 이후에, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여 추정된 윤활유펌프 토출유량이 미리 설정된 기준 토출유량범위를 벗어나면 해당 윤활시스템이 정상이 아닌 상태로 판정하는 단계;를 더 포함할 수 있다. Estimating the lubricating oil pump discharge pressure corresponding to the lubricating oil pump discharge pressure and the relief valve opening pressure during actual lubrication system operation based on the <lubricating oil pump discharge pressure and relief valve opening pressure map>; Subsequently, when the estimated lubricating oil pump discharge flow rate is out of a predetermined reference discharge flow range based on the <lubricating oil pump discharge pressure and relief valve opening pressure map>, it is determined that the lubrication system is not normal. It may further comprise a.
<윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출하는 단계;는, 리그 시험장치의 윤활유펌프 토출압력 및 릴리프밸브 개방압력을 다양한 조건으로 설정하고 각 조건에 따른 윤활유펌프 토출유량을 계측하여, 다양한 조건의 윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량을 도출한다. Deriving the <lubricating oil pump discharge flow rate map according to the lubricating oil pump discharge pressure and the relief valve opening pressure>; setting the lubricating oil pump discharge pressure and the relief valve opening pressure of the rig test apparatus to various conditions and the lubricant pump according to each condition The discharge flow rate is measured to derive the lubricating oil pump discharge flow rate according to the lubricating oil pump discharge pressure and relief valve opening pressure under various conditions.
본 발명에 따른 윤활유펌프 토출유량의 모니터링 방법은 다음과 같은 효과가 있다. The monitoring method of the discharge amount of the lubricating oil pump according to the present invention has the following effects.
직접 계측할 수 없는 윤활유 토출유량을 리그 시험을 통해 도출된 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 통해 추정하는 방식을 적용함에 따라, 실제 윤활유 토출유량에 근사한 값을 얻을 수 있으며, 이를 통해 윤활시스템을 보다 정확하게 모니터링할 수 있다. A value approximating the actual lubricant discharge flow rate by applying the method of estimating the lubricant discharge flow rate that cannot be directly measured through the lubricant pump discharge flow rate map according to the lubricant pump discharge pressure and relief valve opening pressure derived through the rig test. This allows more accurate monitoring of the lubrication system.
도 1은 본 발명의 일 실시예에 따른 윤활유펌프 토출유량의 모니터링 방법을 설명하기 위한 순서도.
도 2는 윤활유펌프의 구성도.
도 3은 본 발명의 일 실시예에 따라 도출된 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 기반한 윤활시스템 모니터링참고도. 1 is a flow chart illustrating a method for monitoring the discharge flow rate of the lubricating oil pump according to an embodiment of the present invention.
2 is a block diagram of a lubricating oil pump.
3 is a reference diagram for monitoring a lubrication system based on <lubricating oil pump discharge flow rate according to lubricating oil pump discharge pressure and relief valve opening pressure> derived according to an embodiment of the present invention.
본 발명은 엔진 동작시 실제 윤활시스템의 윤활유 유량 즉, 윤활유펌프의 윤활유 토출유량을 추정함으로써 윤활유 유량의 기반 하에 윤활시스템의 상태를 진단할 수 있는 기술을 제시한다. The present invention proposes a technique for diagnosing the state of the lubrication system based on the lubricating oil flow rate by estimating the lubricating oil flow rate of the actual lubricating system, that is, the lubricating oil discharge flow rate of the lubricating oil pump during engine operation.
앞서, '발명의 배경이 되는 기술'에서 언급한 바와 같이 윤활시스템은 윤활유 유로가 엔진블록 및 피스톤, 커넥팅로드, 크랭크축 등의 구동부품 내에 위치하고 있어 윤활유 유량을 직접 계측하기는 어렵다. As mentioned earlier in the Background of the Invention, the lubrication system has a lubricating oil flow path located in the engine block and the driving parts such as the piston, the connecting rod, and the crankshaft, so that it is difficult to directly measure the lubricating oil flow rate.
본 발명은 윤활유펌프의 토출압력, 릴리프밸브의 개방압력, 윤활유펌프 토출유량의 상관관계를 도출하고, 이를 바탕으로 실제 엔진 윤활시스템의 동작시 윤활유펌프의 토출압력과 릴리프밸브의 개방압력에 대응되는 윤활유펌프 토출유량을 추정하는 방식을 제시한다. The present invention derives a correlation between the discharge pressure of the lubricating oil pump, the opening pressure of the relief valve, the discharge flow rate of the lubricating oil pump, and based on this, the discharge pressure of the lubricating oil pump and the opening pressure of the relief valve corresponding to the actual operation of the engine lubrication system A method of estimating the discharge flow rate of a lubricating oil pump is presented.
윤활유펌프의 토출압력, 릴리프밸브의 개방압력, 윤활유펌프 토출유량의 상관관계는 리그 시험(rig test)을 통해 도출된다. 즉, 윤활유펌프를 포함하는 리그 시험장치를 준비하고, 다양한 조건의 윤활유펌프 토출압력과 릴리프밸브 개방압력을 인가하고 각 조건에 따른 윤활유펌프 토출유량을 계측함으로써 윤활유펌프의 토출압력, 릴리프밸브의 개방압력, 윤활유펌프 토출유량의 상관관계를 도출할 수 있다. The correlation between the discharge pressure of the lubricating oil pump, the opening pressure of the relief valve and the lubricating oil pump discharge flow rate is derived through a rig test. That is, the rig test apparatus including the lubricating oil pump is prepared, the lubricating oil pump discharge pressure and relief valve opening pressure are applied under various conditions, and the lubricating oil pump discharge flow rate is measured by measuring the discharge pressure of the lubricating oil pump and opening of the relief valve. The correlation between the pressure and the lubricating oil pump discharge flow rate can be derived.
본 발명에 있어서, 윤활유펌프의 토출압력, 릴리프밸브의 개방압력, 윤활유펌프 토출유량의 상관관계는 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>이라 칭한다. <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 통해 실제 윤활시스템 동작시의 윤활유펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유펌프 토출유량을 추정할 수 있다. In the present invention, the correlation between the discharge pressure of the lubricating oil pump, the opening pressure of the relief valve, and the lubricating oil pump discharge flow rate is referred to as a <lubricating oil pump discharge flow rate map corresponding to the lubricating oil pump discharge pressure and the relief valve opening pressure>. <Lubricant pump discharge flow rate map according to lubricating oil pump discharge pressure and relief valve opening pressure> can estimate the lubricating oil pump discharge pressure corresponding to the lubricating oil pump discharge pressure and relief valve opening pressure during actual lubrication system operation.
또한, 본 발명에서 '릴리프밸브(relief valve)'는 윤활유펌프의 일측에 구비되어 윤활유펌프의 토출압력이 일정 압력 즉, 릴리프밸브 개방압력보다 크면 개방되는 밸브를 일컬으며, 릴리프밸브를 통해 유출된 윤활유는 바이패스유로를 통해 바이패스되어 윤활유펌프 흡입부로 유입된다. In addition, the "relief valve" in the present invention is provided on one side of the lubricating oil pump refers to a valve that is opened when the discharge pressure of the lubricating oil pump is greater than a predetermined pressure, that is, the relief valve opening pressure, and is discharged through the relief valve Lubricating oil is bypassed through the bypass passage and flows into the lubricating oil pump suction part.
이하, 도면을 참조하여 본 발명의 일 실시예에 따른 윤활유펌프 토출유량의 모니터링 방법을 상세히 설명하기로 한다. Hereinafter, a method of monitoring the discharge flow rate of a lubricating oil pump according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1을 참조하면, 먼저 윤활유펌프를 포함하는 리그 시험장치를 준비한다(S101). 리그 시험장치는 실제 윤활시스템에 적용되는 윤활유펌프와 동일한 설계사양을 갖는 것이 바람직하다. 리그 시험장치에 포함되는 윤활유펌프는 릴리프밸브(relief valve)를 구비한다. 상기 릴리프밸브는 윤활유펌프의 토출압력이 일정 압력 이상이면 개방되어 윤활유펌프로부터 토출되는 윤활유의 일부를 바이패스시킴으로써 윤활유펌프의 토출압력이 일정 수준 이상 상승되는 것을 방지하는 역할을 한다. 릴리프밸브가 개방되는 압력을 '릴리프밸브 개방압력'이라 칭하며, 릴리프밸브의 개방압력은 선택적으로 조정 가능하다. 한편, 릴리프밸브의 개방으로 인해 릴리프밸브의 내측으로 유출된 윤활유는 바이패스유로로 바이패스되어 윤활유펌프로 재유입된다(도 2 참조). Referring to Figure 1, first prepare a rig test apparatus including a lubricating oil pump (S101). The rig test unit preferably has the same design specifications as the lubricating oil pump applied to the actual lubrication system. The lubricating oil pump included in the rig test apparatus is provided with a relief valve. The relief valve opens when the discharge pressure of the lubricating oil pump is greater than or equal to a predetermined pressure, thereby bypassing a part of the lubricating oil discharged from the lubricating oil pump, thereby preventing the discharge pressure of the lubricating oil pump from rising above a predetermined level. The pressure at which the relief valve opens is referred to as the "relief valve opening pressure", and the relief pressure of the relief valve can be selectively adjusted. On the other hand, the lubricating oil leaked into the relief valve due to the opening of the relief valve is bypassed to the bypass passage and re-introduced into the lubricating oil pump (see FIG. 2).
윤활유펌프를 포함하는 리그 시험장치가 준비된 상태에서, 리그 시험장치를 대상으로 리그 시험(rig test)를 실시하여 윤활유펌프의 토출압력, 릴리프밸브의 개방압력, 윤활유펌프 토출유량의 상관관계 즉, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출한다(S102). In a state where a rig test apparatus including a lubricating oil pump is prepared, a rig test is performed on the rig testing apparatus, and the correlation between the discharge pressure of the lubricating oil pump, the opening pressure of the relief valve, and the discharge flow rate of the lubricating oil pump, that is, < The lubricant pump discharge flow rate map according to the lubricant pump discharge pressure and the relief valve opening pressure> is derived (S102).
구체적으로, 리그 시험장치의 윤활유펌프 토출압력 및 릴리프밸브 개방압력을 다양한 조건으로 설정하고 각 조건에 따른 윤활유펌프 토출유량을 계측한다. 이와 같은 리그 시험을 통해 다양한 조건의 윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량을 도출할 수 있으며, 이는 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 해당된다. Specifically, the lubricating oil pump discharge pressure and the relief valve opening pressure of the rig test apparatus are set to various conditions, and the lubricating oil pump discharge flow rate according to each condition is measured. Through such a rig test, it is possible to derive the lubricating oil pump discharge flow rate according to the lubricating oil pump discharge pressure and relief valve opening pressure under various conditions, which is shown in <Lubricant pump discharge flow rate according to lubricating oil pump discharge pressure and relief valve opening pressure>. Yes.
<윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>이 도출된 상태에서, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여, 실제 윤활시스템 동작시의 윤활유펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유펌프 토출유량을 추정할 수 있다(S103). The actual lubrication system operation based on the <lubricant oil pump discharge flow rate according to the lubricating oil pump discharge pressure and the relief valve opening pressure> is derived. The lubricant pump discharge flow rate corresponding to the lubricant pump discharge pressure and the relief valve opening pressure at the time can be estimated (S103).
나아가, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여 추정된 윤활유펌프 토출유량이 미리 설정된 기준 토출유량범위를 벗어나면 해당 윤활시스템이 정상이 아닌 상태로 판정할 수 있다(S104)(도 3 참조). 도 3을 참조하면, 기준 토출유량범위가 A m3h < 기준 토출유량범위 < B m3h로 설정된 상태에서, <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여 추정된 윤활유펌프 토출유량이 기준 토출유량범위에 속하면 정상운전영역으로 판정하고, 추정된 윤활유펌프 토출유량이 기준 토출유량범위를 벗어나면 즉, 추정된 윤활유펌프 토출유량이 A m3h 보다 작거나 B m3h 보다 크면 비정상운전영역으로 판정한다. 도 3에서, 추정된 윤활유펌프 토출유량 Case #1, Case #2, Case #3은 기준 토출유량범위에 속하여 정상운전영역으로 판정된 경우이고, Case #4는 기준 토출유량범위를 벗어나 비정상운전영역으로 판정된 경우이다.Further, when the estimated lubricating oil pump discharge flow rate is out of the preset standard discharge flow range based on the <lubricating oil pump discharge pressure and relief valve opening pressure map>, it is determined that the lubrication system is not normal. It may be (S104) (see Fig. 3). Referring to FIG. 3, based on the <lubricating oil pump discharge flow rate according to the lubricating oil pump discharge pressure and the relief valve opening pressure> with the reference discharge flow range set to A m 3 h <reference discharge flow range <B m 3 h If the estimated lubricating oil pump discharge flow rate is within the standard discharge flow rate range, it is determined to be a normal operation area.If the estimated lubricating oil pump discharge flow rate is outside the standard discharge flow range, that is, the estimated lubricating oil pump discharge flow rate is more than A m 3 h. If it is smaller or larger than B m 3 h, it is determined as abnormal operation area. In FIG. 3, the estimated lubricating oil pump discharge flow
Claims (3)
리그 시험장치를 대상으로 리그 시험(rig test)를 실시하여 <윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>을 도출하는 단계; 및
<윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여, 실제 윤활시스템 동작시의 윤활유펌프 토출압력과 릴리프밸브 개방압력에 대응되는 윤활유펌프 토출유량을 추정하는 단계;를 포함하여 이루어지는 것을 특징으로 하는 윤활유펌프 토출유량의 모니터링 방법.
Preparing a rig test apparatus including a lubricating oil pump;
Performing a rig test on the rig test apparatus to derive a <lubricating oil pump discharge flow rate map according to the lubricating oil pump discharge pressure and the relief valve opening pressure>; And
Estimating the lubricating oil pump discharge pressure corresponding to the lubricating oil pump discharge pressure and the relief valve opening pressure during the actual lubrication system operation based on the <lubricating oil pump discharge pressure and relief valve opening pressure map>; Method for monitoring the discharge flow rate of the lubricating oil pump, characterized in that it comprises.
<윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량 맵>에 근거하여 추정된 윤활유펌프 토출유량이 미리 설정된 기준 토출유량범위를 벗어나면 해당 윤활시스템이 정상이 아닌 상태로 판정하는 단계;를 더 포함하여 이루어지는 것을 특징으로 하는 윤활유펌프 토출유량의 모니터링 방법.
The lubricating oil pump discharge flow rate corresponding to the lubricating oil pump discharge pressure and the relief valve opening pressure during actual lubrication system operation according to claim 1, wherein the lubricating oil pump discharge flow rate according to the lubricating oil pump discharge pressure and the relief valve opening pressure. Estimating; Since the,
Determining that the lubricating system is not in a normal state when the lubricating oil pump discharge flow rate estimated based on the <lubricating oil pump discharge pressure and relief valve opening pressure is out of a preset reference discharge flow range; Method for monitoring the discharge flow rate of the lubricating oil pump, characterized in that further comprises.
리그 시험장치의 윤활유펌프 토출압력 및 릴리프밸브 개방압력을 다양한 조건으로 설정하고 각 조건에 따른 윤활유펌프 토출유량을 계측하여, 다양한 조건의 윤활유펌프 토출압력 및 릴리프밸브 개방압력에 따른 윤활유펌프 토출유량을 도출하는 것을 특징으로 하는 윤활유펌프 토출유량의 모니터링 방법. The method of claim 1, further comprising: deriving a <lubricating oil pump discharge flow rate map according to the lubricating oil pump discharge pressure and the relief valve opening pressure>;
Set the lubricating oil pump discharge pressure and relief valve opening pressure of the rig test equipment to various conditions and measure the lubricating oil pump discharge flow according to each condition, and determine the lubricating oil pump discharge flow according to the lubricating oil pump discharge pressure and relief valve opening pressure under various conditions. A method for monitoring the discharge flow rate of a lubricating oil pump, which is derived.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270683A (en) | 2009-05-21 | 2010-12-02 | Toyota Motor Corp | Hydraulic control device for internal combustion engine |
| WO2011070604A1 (en) | 2009-12-07 | 2011-06-16 | 株式会社Tbk | Engine lubricating oil supply device |
| EP2415980A1 (en) | 2009-03-31 | 2012-02-08 | Toyota Jidosha Kabushiki Kaisha | Oil pressure control apparatus of internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2415980A1 (en) | 2009-03-31 | 2012-02-08 | Toyota Jidosha Kabushiki Kaisha | Oil pressure control apparatus of internal combustion engine |
| JP2010270683A (en) | 2009-05-21 | 2010-12-02 | Toyota Motor Corp | Hydraulic control device for internal combustion engine |
| WO2011070604A1 (en) | 2009-12-07 | 2011-06-16 | 株式会社Tbk | Engine lubricating oil supply device |
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