KR20010066076A - Apparatus for testing durability of piston ring - Google Patents

Apparatus for testing durability of piston ring Download PDF

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Publication number
KR20010066076A
KR20010066076A KR1019990067658A KR19990067658A KR20010066076A KR 20010066076 A KR20010066076 A KR 20010066076A KR 1019990067658 A KR1019990067658 A KR 1019990067658A KR 19990067658 A KR19990067658 A KR 19990067658A KR 20010066076 A KR20010066076 A KR 20010066076A
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South Korea
Prior art keywords
piston
temperature
piston ring
oil
ring
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KR1019990067658A
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Korean (ko)
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KR100346478B1 (en
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김중수
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이계안
현대자동차주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness

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  • Testing Of Engines (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

PURPOSE: A durability testing device for a piston ring is provided to recognize the adhesion and abrasion characteristics of a piston ring by measuring a temperature of a groove mounted with the piston ring and controlling an oil supply amount with respect to a piston by a micro feed pump. CONSTITUTION: A durability testing device for a piston ring includes a piston(10) mounted with an electric heater(22) inside, a piston temperature control element(20) for controlling a temperature of the electric heater according to a signal applied from a temperature sensor(24) mounted in a groove(12) of the piston, a motor(30) for rotating a rotation shaft(32) of a piston conveying cam(34) which contacts a lower end of the piston, and a micro feed pump(50) for supplying oil stored in an oil storage part(42) formed at a lower part of the rotation shaft to the piston.

Description

피스톤링의 내구성 시험장치{Apparatus for testing durability of piston ring}Apparatus for testing durability of piston ring}

본 발명은 피스톤링의 내구성 시험장치에 관한 것으로, 더욱 상세하게는 피스톤 내부에 설치된 전기히터의 온도를 조절하여 피스톤링이 장착되는 글루브의 온도를 측정하는 피스톤 온도 조절수단을 구비하고 마이크로 피드펌프를 이용하여 피스톤에 오일 공급량을 조절하여 피스톤링의 응착 및 마모 특성을 파악하여 피스톤링의 내구성을 시험할 수 있는 피스톤링의 내구성 시험장치에 관한 것이다.The present invention relates to a durability test apparatus for a piston ring, and more particularly, a micro feed pump having a piston temperature adjusting means for measuring a temperature of a groove in which a piston ring is mounted by adjusting a temperature of an electric heater installed inside the piston. It relates to a piston ring durability test device that can test the durability of the piston ring by adjusting the oil supply amount to the piston by using the to determine the adhesion and wear characteristics of the piston ring.

일반적으로 피스톤링은 팽창가스 압력에 대하여 연소실의 기밀을 유지하고, 팽창가스를 연소실에서 크랭크 케이스로 누설되는 것을 방지함과 동시에 피스톤이 받은 열의 대부분을 실린더벽에 전달한다.In general, the piston ring maintains the airtightness of the combustion chamber with respect to the expansion gas pressure, prevents the expansion gas from leaking from the combustion chamber to the crankcase and at the same time transmits most of the heat received by the piston to the cylinder wall.

또한, 피스톤링은 피스톤 상부의 글루브에 장착되며 실린더벽에 뿌려진 오일을 긁어내려 필요한 최소한의 유막을 형성하는 동시에 남은 오일이 연소실로 침입하여 올라가는 것을 방지한다.In addition, the piston ring is mounted on the groove on the upper part of the piston and scrapes off the oil sprayed on the cylinder wall to form the required minimum oil film while preventing the remaining oil from entering and entering the combustion chamber.

이중에서 주로 기밀유지에 사용되는 일을 압축링(compression ring)이라고 하며, 오일을 긁어내리는 작용을 하는 링을 오일링(oil ring)이라고 한다.Among them, a work mainly used for airtightness is called a compression ring, and a ring that scrapes oil is called an oil ring.

이러한 피스톤링은 엔진을 일전한 조건하에서 운전한 후, 운전 전/후의 단품을 비교 분석하여 응착 및 마모량을 측정하여 피스톤링의 내구성을 시험한다.The piston ring is tested for durability of the piston ring by measuring the amount of adhesion and abrasion by comparing the parts of the engine before and after the operation after operating the engine under the same conditions.

그러나, 피스톤링의 응착 및 마모에 영향을 주는 주요소인 피스톤 및 피스톤링의 온도와 피스톤으로 공급되는 오일량을 임의로 조절할 수 없으므로 특정한 조건에서 피스톤링의 응착 및 마모량의 측정은 가능하지만, 피스톤링의 내구성에 영향을 주는 각각의 요소에 의한 피스톤링의 응착 및 마모량 발생 메카니즘을 규명하는데 어려운 문제점이 있었다.However, since it is impossible to arbitrarily control the temperature of the piston and the piston ring and the amount of oil supplied to the piston, which are the main factors affecting the adhesion and wear of the piston ring, it is possible to measure the adhesion and wear of the piston ring under specific conditions. It was difficult to identify the mechanism of adhesion and wear amount of the piston ring by each factor affecting the durability.

본 발명은 상기와 같은 문제점을 감안하여 안출한 것으로, 피스톤 내부에 설치된 전기히터의 온도를 조절하여 피스톤링이 장착되는 글루브의 온도를 측정하는 피스톤 온도 조절수단을 구비하고 마이크로 피드펌프를 이용하여 피스톤에 오일 공급량을 조절하여 피스톤링의 응착 및 마모 특성을 파악하여 피스톤링의 내구성을 시험할 수 있는 피스톤링의 내구성 시험장치를 제공하는데 그 목적이 있다.The present invention has been made in view of the above problems, by adjusting the temperature of the electric heater installed inside the piston is provided with a piston temperature adjusting means for measuring the temperature of the groove in which the piston ring is mounted and using a micro feed pump The purpose of the present invention is to provide a piston ring durability tester that can test the durability of the piston ring by adjusting the oil supply to the piston to grasp the adhesion and wear characteristics of the piston ring.

도 1은 본 발명에 따른 피스톤링의 내구성 시험장치의 구성도1 is a configuration diagram of the durability test apparatus of the piston ring according to the present invention

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 피스톤 12 : 글루브(groove)10: piston 12: groove

14 : 피스톤링 16 : 실린더블록14: piston ring 16: cylinder block

20 : 피스톤 온도 조절수단 22 : 전기히터20: piston temperature control means 22: electric heater

24 : 온도 측정센서 30 : 모터24: temperature measuring sensor 30: motor

32 : 회전축 34 : 피스톤 이송용 캠32: rotating shaft 34: piston feed cam

40 : 오일 온도 조절수단 42 : 오일 저장고40: oil temperature control means 42: oil reservoir

50 : 마이크로 피드펌프 52 : 유량계50: micro feed pump 52: flow meter

이하 첨부도면을 참조하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 피스톤링의 내구성 시험장치는 내부에 전기히터(22)가 설치된 피스톤(10)과, 상기 피스톤(10) 글루브(12)에 장착된 온도 측정센서(24)의 신호를 인가받아 전기히터(22)의 온도를 조절하는 피스톤 온도 조절수단(20)과, 상기 피스톤(10) 하단에 접하는 피스톤 이송용 캠(34)의 회전축(32)을 회전시키는 모터(30)와, 상기 회전축(32) 하단에 형성된 오일 저장고(42)에 저장된 오일을 피스톤(10)으로 공급하는 마이크로 피드펌프(50)로 구성된 것을 특징으로 한다.The durability test apparatus of the piston ring according to the present invention receives a signal from a piston 10 having an electric heater 22 installed therein and a temperature measuring sensor 24 mounted to the piston 10 groove 12. Piston temperature adjusting means 20 for adjusting the temperature of the electric heater 22, the motor 30 for rotating the rotary shaft 32 of the piston feed cam 34 in contact with the lower end of the piston 10, and the rotary shaft (32) It is characterized by consisting of a micro feed pump 50 for supplying the oil stored in the oil reservoir 42 formed at the lower end to the piston (10).

특히, 상기 마이크로 피드펌프(50)와 피스톤(10) 사이의 유로에는유량계(52)가 장착된 것을 특징으로 한다.In particular, a flowmeter 52 is mounted on the flow path between the micro feed pump 50 and the piston 10.

또한, 상기 오일 저장고(42)에 일측에는 오일의 온도를 조절하는 오일 온도 조절수단(40)이 설치된 것을 특징으로 한다.In addition, one side of the oil reservoir 42 is characterized in that the oil temperature control means 40 for adjusting the temperature of the oil is installed.

본 발명을 좀 더 상세히 설명하면 다음과 같다.The present invention is described in more detail as follows.

첨부한 도 1은 본 발명에 따른 피스톤링의 내구성 시험장치의 구성도로써, 피스톤(10)에 상부에 형성된 글루브(12)에 피스톤링(14)이 장착되고 상기 피스톤(10)이 실린더블록(16) 내주면에서 왕복 운동함에 따라, 피스톤링(14)과 실린더블록(16)이 마찰하게 된다.1 is a configuration diagram of a durability test apparatus for a piston ring according to the present invention, in which a piston ring 14 is mounted on a groove 12 formed on an upper portion of the piston 10 and the piston 10 is a cylinder block. (16) As the reciprocating motion in the inner circumferential surface, the piston ring 14 and the cylinder block 16 is rubbed.

상기 피스톤(10) 내부에는 전기히터(22)가 장착되고 피스톤링(14)이 장착되는 글루브(12)에 온도 측정센서(24)가 장착되어, 상기 온도 측정센서(24)로부터 글루브(12)의 온도를 측정하여 결과적으로는 피스톤링(14)의 온도를 측정할 수 있다.An electric heater 22 is mounted inside the piston 10 and a temperature measuring sensor 24 is mounted on the groove 12 on which the piston ring 14 is mounted. The temperature of the piston ring 14 can be measured as a result by measuring the temperature of 12).

상기 온도 측정센서(24)는 전기히터(22)의 온도를 조절하는 피스톤 온도 조절수단(20)으로 측정된 온도를 피드백(feed back)시켜 피스톤(10)의 온도, 결과적으로는 피스톤링(14)의 온도를 조절할 수 있다.The temperature measuring sensor 24 feeds back the temperature measured by the piston temperature adjusting means 20 for adjusting the temperature of the electric heater 22, so that the temperature of the piston 10, and consequently, the piston ring 14 ) Temperature can be adjusted.

또한, 상기 피스톤(10) 하단에 접하는 피스톤 이송용 캠(34)은 별도 장착된 모터(30)에 의해 회전되는 회전축(32)을 중심으로 회전하여 피스톤(10)을 실린더 블록(16) 내주면에서 왕복 운동시킨다.In addition, the piston transfer cam 34 in contact with the lower end of the piston 10 is rotated about the rotating shaft 32 is rotated by a separately mounted motor 30 to rotate the piston 10 in the cylinder block 16 inner peripheral surface Reciprocate.

상기 회전축(32) 하단에 형성된 오일 저장고(42)에 저장된 오일은 마이크로 피트펌프(50)를 통하여 미세하게 유량이 조절되어 피스톤(10)으로 공급되는 바, 상기 마이크로 피드펌프(50)와 피스톤(10) 사이의 유로에는 유량계(52)가 장착되어오일의 공급량을 측정할 수 있다.The oil stored in the oil reservoir 42 formed at the lower end of the rotating shaft 32 is supplied to the piston 10 by finely adjusting the flow rate through the micro pit pump 50, and the micro feed pump 50 and the piston ( A flowmeter 52 is mounted in the flow path between 10) to measure the amount of oil supplied.

또한, 상기 오일 저장고(42) 일측에는 오일의 온도를 실제 엔진의 운전조건과 상사시키기 위하여 오일의 온도를 조절하는 오일 온도 조절수단(40)이 설치된다.In addition, one side of the oil reservoir 42 is provided with an oil temperature control means 40 for adjusting the temperature of the oil in order to resemble the temperature of the oil and the actual operating conditions of the engine.

이하 본 발명의 작용상태를 설명하면 다음과 같다.Hereinafter will be described the working state of the present invention.

온도 측정센서(24)로부터 측정된 온도를 피스톤 온도 조절수단(20)으로 피드백시켜 피스톤(10) 내부에 설치된 전기히터(22)를 가열하여 피스톤(10) 및 피스톤링(14)의 온도를 조절한다.The temperature measured from the temperature measuring sensor 24 is fed back to the piston temperature adjusting means 20 to heat the electric heater 22 installed in the piston 10 to adjust the temperature of the piston 10 and the piston ring 14. do.

또한, 오일 온도 조절수단(40)에 의해 실제 엔진 운전조건과 상사시킨 오일 온도를 갖는 오일을 마이크로 피드펌프(50)를 통하여 미세한 유량으로 피스톤(10)으로 공급하는 바, 상기 마이크로 피드펌프(50)의 펌핑속도를 조절하여 공급되는 오일의 유량을 조절할 수 있으며 이는 유량계(52)에서 측정된다.In addition, the oil temperature adjusting means 40 supplies an oil having an oil temperature similar to that of the actual engine operating condition to the piston 10 at a minute flow rate through the micro feed pump 50. The micro feed pump 50 The flow rate of the oil supplied can be adjusted by adjusting the pumping speed of c), which is measured by the flow meter 52.

한편, 모터(30)에 의해 회전되는 회전축(32)에 설치된 피스톤 이송용 캠(34)에 의해 피스톤(10)을 왕복 운동시킬 수 있으며, 특히 상기 피스톤 이송용 캠(34)의 행정거리를 실제 엔진의 스트로크(stroke)와 동일하게 형성하여 실제 엔진의 운전조건과 상사시킨다.On the other hand, the piston 10 can be reciprocated by the piston feed cam 34 installed on the rotating shaft 32 rotated by the motor 30, and in particular, the stroke distance of the piston feed cam 34 is actually measured. It is formed equal to the stroke of the engine and is similar to the actual operating conditions of the engine.

따라서 피스톤(10) 및 피스톤링(14)의 온도를 일정하게 조절하고 피스톤(10)으로 공급되는 오일량을 변화시키거나, 피스톤(10)으로 공급되는 오일량을 일정하게 조절하고 피스톤(10) 및 피스톤링(14)의 온도를 변화시키면서 피스톤링(14)의 응착 및 마모량을 측정하여 상기 응착 및 마모량의 발생 메카니즘을 규명하여 피스톤링(14)의 내구성을 시험할 수 있는 것이다.Therefore, the temperature of the piston 10 and the piston ring 14 are constantly adjusted and the amount of oil supplied to the piston 10 is changed, or the amount of oil supplied to the piston 10 is constantly adjusted and the piston 10 is fixed. And by measuring the amount of adhesion and wear of the piston ring 14 while changing the temperature of the piston ring 14 to determine the mechanism of occurrence of the adhesion and wear amount to test the durability of the piston ring (14).

이상에서 상술한 바와 같이, 본 발명에 따른 피스톤링의 내구성 시험장치에 의하면 피스톤 내부에 설치된 전기히터의 온도를 조절하여 피스톤링이 장착되는 글루브의 온도를 측정하는 피스톤 온도 조절수단을 구비하고 마이크로 피드펌프를 이용하여 피스톤에 오일 공급량을 조절하여 피스톤링의 응착 및 마모 특성을 파악하여 피스톤링의 내구성을 시험할 수 있고, 상기 피스톤링의 응착 및 마모량의 발생 메카니즘을 규명할 수 있는 효과가 있다.As described above, according to the durability test apparatus of the piston ring according to the present invention is provided with a piston temperature control means for measuring the temperature of the groove in which the piston ring is mounted by adjusting the temperature of the electric heater installed inside the piston and By adjusting the oil supply amount to the piston by using a feed pump, it is possible to test the durability of the piston ring by grasping the adhesion and wear characteristics of the piston ring, and it is possible to identify the mechanism of occurrence of the adhesion and wear amount of the piston ring. .

Claims (3)

내부에 전기히터(22)가 설치된 피스톤(10)과,A piston 10 having an electric heater 22 installed therein, 상기 피스톤(10) 글루브(12)에 장착된 온도 측정센서(24)의 신호를 인가받아 전기히터(22)의 온도를 조절하는 피스톤 온도 조절수단(20)과,Piston temperature control means 20 for controlling the temperature of the electric heater 22 by receiving a signal from the temperature measuring sensor 24 mounted on the piston 10, the groove 12, 상기 피스톤(10) 하단에 접하는 피스톤 이송용 캠(34)의 회전축(32)을 회전시키는 모터(30)와,A motor 30 for rotating the rotation shaft 32 of the piston feed cam 34 in contact with the lower end of the piston 10; 상기 회전축(32) 하단에 형성된 오일 저장고(42)에 저장된 오일을 피스톤(10)으로 공급하는 마이크로 피드펌프(50)로 구성된 것을 특징으로 하는 피스톤링의 내구성 시험장치.Durability test apparatus of the piston ring, characterized in that composed of a micro feed pump (50) for supplying the oil stored in the oil reservoir (42) formed on the lower end of the rotating shaft (32) to the piston (10). 제 1 항에 있어서, 상기 마이크로 피드펌프(50)와 피스톤(10) 사이의 유로에는 유량계(52)가 장착된 것을 특징으로 하는 피스톤링의 내구성 시험장치.According to claim 1, wherein the flow path between the micro feed pump (50) and the piston (10) is a durability test device of the piston ring, characterized in that the flow meter (52) is mounted. 제 1 항에 있어서, 상기 오일 저장고(42)에 일측에는 오일의 온도를 조절하는 오일 온도 조절수단(40)이 설치된 것을 특징으로 하는 피스톤링의 내구성 시험장치.According to claim 1, wherein the oil reservoir 42, the piston ring durability test apparatus, characterized in that the oil temperature control means 40 for adjusting the temperature of the oil is installed.
KR1019990067658A 1999-12-31 1999-12-31 Apparatus for testing durability of piston ring KR100346478B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101125085B1 (en) * 2010-05-12 2012-03-21 유성기업 주식회사 Bending Strength Tester of Piston Ring
CN109668738A (en) * 2019-02-28 2019-04-23 北京理工大学 A kind of piston temperature field simulation test device and test method
CN114279711A (en) * 2021-12-23 2022-04-05 中国船舶重工集团公司第七一一研究所 Piston heat transfer test device

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KR20040046374A (en) * 2002-11-27 2004-06-05 현대자동차주식회사 a wear testing apparatus for piston ring and liner of engine
KR101195216B1 (en) * 2010-06-07 2012-10-29 태하메카트로닉스 (주) Endurance test apparatus
KR20150051460A (en) * 2013-11-04 2015-05-13 현대자동차주식회사 Device for measuring temperature of exhaust valve

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Publication number Priority date Publication date Assignee Title
JPS61223532A (en) * 1985-03-29 1986-10-04 Mitsubishi Heavy Ind Ltd Ring groove wear tester
JP2597019B2 (en) * 1990-01-19 1997-04-02 三菱重工業株式会社 Piston ring wear diagnosis method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101125085B1 (en) * 2010-05-12 2012-03-21 유성기업 주식회사 Bending Strength Tester of Piston Ring
CN109668738A (en) * 2019-02-28 2019-04-23 北京理工大学 A kind of piston temperature field simulation test device and test method
CN114279711A (en) * 2021-12-23 2022-04-05 中国船舶重工集团公司第七一一研究所 Piston heat transfer test device
CN114279711B (en) * 2021-12-23 2024-03-29 中国船舶集团有限公司第七一一研究所 Piston heat transfer test device

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