KR101217726B1 - crank shaft's oil seal - Google Patents

crank shaft's oil seal Download PDF

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Publication number
KR101217726B1
KR101217726B1 KR1020100096484A KR20100096484A KR101217726B1 KR 101217726 B1 KR101217726 B1 KR 101217726B1 KR 1020100096484 A KR1020100096484 A KR 1020100096484A KR 20100096484 A KR20100096484 A KR 20100096484A KR 101217726 B1 KR101217726 B1 KR 101217726B1
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KR
South Korea
Prior art keywords
retainer
hole
magnetic
oil seal
crankshaft
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KR1020100096484A
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Korean (ko)
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KR20120035024A (en
Inventor
허용수
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한국에스케이에프씰 주식회사
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Priority to KR1020100096484A priority Critical patent/KR101217726B1/en
Publication of KR20120035024A publication Critical patent/KR20120035024A/en
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Publication of KR101217726B1 publication Critical patent/KR101217726B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06—Crankshafts
    • F16C3/14—Features relating to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
    • F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
    • F16J15/326—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals with means for detecting or measuring relative rotation of the two elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/908—Seal for use in rotating and reciprocating arrangement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

본 발명은 자동차의 엔진 블럭에 설치하여 크랭크 샤프트를 회전?지지하면서 오일의 누유을 방지시켜 주기 위한 크랭크 샤프트용 오일 씰에 관한 것이다.
본 발명은 일측에 구비되는 지지 브라켓(24)에 마그네틱 감지 센서(30)가 설치되고, 엔진 블럭에 접하는 배면에 스태틱 씰(22)을 설치하여서 된 리테이너(20)의 통공(23)에 마련된 결합 부재(23b)에 씰링 고무(40)를 결합하며, 리테이너(20)의 통공(23)에 그 외주면이 감지 센서(30)에 감응되도록 한 마그네틱 톤-휠(50)을 설치하여 구성한 것이다.
본 발명은 리테이너(하우징)와 씰링 고무가 일체를 이루도록 한 것으로, 오일 씰의 제작 및 조립에 따른 비용과 시간을 절감할 수 있도록 함과 아울러 조립 불량에 따른 오일 리크의 발생을 방지할 수 있으며, 오일 씰을 이용해 크랭크 샤프트의 회전수 및 회전속도 등을 검출하여 자동차의 운행정보에 활용할 수 있는 등의 효과가 있다.The present invention relates to an oil seal for a crankshaft installed in an engine block of an automobile to prevent oil leakage while rotating and supporting the crankshaft.
The present invention is provided with a magnetic sensing sensor 30 is provided on the support bracket 24 provided on one side, the coupling provided in the through hole 23 of the retainer 20 by installing a static seal 22 on the back contacting the engine block The sealing rubber 40 is coupled to the member 23b, and the magnetic tone-wheel 50 is installed in the through hole 23 of the retainer 20 so that its outer circumferential surface is sensitive to the detection sensor 30.
According to the present invention, the retainer (housing) and the sealing rubber are integrally formed, and the cost and time of manufacturing and assembling the oil seal can be reduced, and the occurrence of oil leakage due to the assembly failure can be prevented. The oil seal can be used to detect the rotational speed and rotational speed of the crankshaft, and can be used for driving information of the car.

Description

크랭크 샤프트용 오일 씰{crank shaft's oil seal}Crank shaft's oil seal

본 발명은 크랭크 샤프트용 오일 씰에 관한 것으로서, 좀더 상세하게는 자동차의 엔진 블럭에 설치하여 크랭크 샤프트를 회전?지지하면서 오일의 누유을 방지시켜 주기 위한 크랭크 샤프트용 오일 씰을 제공하기 위한 것이다.The present invention relates to an oil seal for a crankshaft, and more particularly, to provide an oil seal for a crankshaft for preventing oil leakage while rotating and supporting the crankshaft by installing it on an engine block of an automobile.

자동차의 엔진 출력축인 크랭크 샤프트에는 엔진 블럭에 설치되는 오일 씰을 경유하도록 함으로써 오일의 누유가 방지되도록 함과 동시에 외부 이물질 등이 엔진 내부로 침입하는 것을 방지할 수 있도록 하고 있는데, 자동차의 크랭크 샤프트용 오일 씰은 고무 재질로 된 씰링 부재와 스틸(steel) 소재로 된 하우징으로 이루어진다.The crankshaft, which is the engine output shaft of a car, is connected to the oil seal installed in the engine block to prevent oil leakage and at the same time to prevent foreign substances from entering the engine. The oil seal consists of a sealing member made of rubber and a housing made of steel.

종래에는 씰링 부재와 하우징을 별도로 제작하여 오일 씰을 조립하였으며, 씰링 부재와 하우징의 조립 시에 씰링 부재가 하우징으로부터 이탈하는 것을 방지하기 위해 별도의 스틸 부재를 삽입하여 오일 씰을 제작하였는데, 상기한 종래의 오일 씰은 하우징과 씰링 부재를 별도로 제작하므로 제품비용 및 물류비용이 상승할 뿐만 아니라 자동차 생산라인에서 별도 조립에 따른 공정비용 및 공정시간의 상승을 야기하였으며, 또한, 하우징과 씰링 부재의 조립 불량으로 인해 오일 리크가 발생할 수 있다는 등의 문제점이 지적되고 있다.Conventionally, an oil seal is assembled by separately manufacturing a sealing member and a housing, and an oil seal is manufactured by inserting a separate steel member to prevent the sealing member from being separated from the housing when the sealing member and the housing are assembled. The conventional oil seal not only increases the product cost and the logistics cost since the housing and the sealing member are manufactured separately, but also increases the processing cost and the processing time due to the separate assembly in the automobile production line, and also the assembly of the housing and the sealing member. Problems such as oil leakage may occur due to defects have been pointed out.

본 발명은 전술한 바와 같은 종래 오일 씰의 제반 문제점을 일소하기 위해 창출한 것으로서, 씰 리테이너에 씰링 부재와 마그네틱 톤-휠 및 감지센서를 결합하여 일체화된 멀티 기능의 오일 씰을 구현함으로써 오일 씰의 제작 및 조립에 따른 비용과 시간을 절감할 수 있도록 함과 아울러 조립 불량에 따른 오일 리크의 발생을 방지할 수 있도록 하며, 또한, 마그네틱 톤-휠 및 감지센서를 이용하여 크랭크 샤프트의 회전속도 및 회전수 등을 자동으로 검출하여 자동차의 운행정보에 활용할 수 있도록 하고자 함에 기술적 과제의 주안점을 두고 완성한 크랭크 샤프트용 오일 씰을 제공하고자 한다.The present invention was created to eliminate all the problems of the conventional oil seal as described above, by combining the sealing member, the magnetic tone-wheel and the sensor in the seal retainer to implement an integrated multi-function oil seal of the oil seal It can reduce the cost and time of manufacturing and assembling, prevent the occurrence of oil leakage due to poor assembly, and also the rotation speed and rotation of the crankshaft by using magnetic tone wheel and sensor In order to automatically detect the number and to use in the driving information of the car, it is to provide a finished oil seal for the crankshaft with the focus of the technical problem.

상기한 기술적 과제를 실현하기 위한 본 발명은 일측에 지지 브라켓이 구비되고, 엔진 블럭에 접하는 배면에 스태틱 씰이 설치되며, 내측에 통공이 설치되는 리테이너, 체결수단에 의해 리테이너의 지지 브라켓에 고정되는 마그네틱 감지 센서, 리테이너의 통공 후측에 결합되는 씰링 고무와 씰링 고무의 전측에 회전가능하게 결합되어 그 외주면이 감지 센서에 감응되도록 한 마그네틱 톤-휠 등으로 구성되어짐을 기술적 특징으로 하는 것이다.The present invention for realizing the above technical problem is provided with a support bracket on one side, a static seal is installed on the rear surface in contact with the engine block, the retainer is provided with a through-hole is fixed to the support bracket of the retainer by a fastening means Magnetic sensing sensor, the sealing rubber is coupled to the rear side of the through hole of the retainer and the mechanically characterized by consisting of a magnetic tone-wheel, etc. rotatably coupled to the front side of the sealing rubber so that the outer peripheral surface is sensitive to the sensing sensor.

본 발명에서 제시하는 크랭크 샤프트용 오일 씰은 리테이너(하우징)와 씰링 고무가 일체를 이루도록 한 것으로, 오일 씰의 제작 및 조립에 따른 비용과 시간을 절감할 수 있도록 함과 아울러 조립 불량에 따른 오일 리크의 발생을 방지할 수 있으며, 또한, 오일 씰에 크랭크 샤프트의 회전속도 및 회전수를 검출할 수 있는 검출수단을 설치하여 검출된 크랭크 샤프트의 회전 속도 등을 자동차의 운행정보에 활용할 수 있는 등 본 발명은 그 기대되는 효과가 실로 유익한 발명이다.The oil seal for the crankshaft proposed in the present invention is to keep the retainer (housing) and the sealing rubber as one body, and to reduce the cost and time due to the manufacture and assembly of the oil seal, and the oil leak due to the assembly failure. Of the crankshaft can be utilized for driving information of the vehicle by installing detection means for detecting the rotational speed and the rotational speed of the crankshaft in the oil seal. The invention is an invention in which the expected effect is indeed beneficial.

도 1은 본 발명에서 제시하는 오일 씰의 바람직한 실시예를 도시한 사시도.
도 2는 본 발명의 결합구조 및 사용상태를 설명하기 위한 참고 단면도.1 is a perspective view showing a preferred embodiment of the oil seal proposed in the present invention.
Figure 2 is a cross-sectional reference for explaining the coupling structure and the use state of the present invention.

<발명의 실시형태>Embodiment of the Invention

도 1 내지 도 2에 본 발명에서 제시하는 오일 씰(10)의 바람직한 실시예가 도시되는데, 도시된 바와 같이 본 발명은 전방으로 돌출하는 씰 하우징(21)을 구비하는 리테이너(20), 리테이너(20) 일측에 결합되는 마그네틱 감지 센서(30), 리테이너(20)의 씰 하우징(21)에 마련되는 통공(23)에 결합되도록 한 씰링 고무(40) 및 마그네틱 톤-휠(50) 등으로 구성되어짐을 알 수 있는바, 본 발명의 구체적인 실시는 하기와 같이 이루어진다.1 to 2, there is shown a preferred embodiment of the oil seal 10 presented in the present invention. As shown, the present invention includes a retainer 20 and a retainer 20 having a seal housing 21 projecting forward. Magnetic seal sensor 30 coupled to one side, sealing rubber 40 to be coupled to the through-hole 23 provided in the seal housing 21 of the retainer 20 and the magnetic tone wheel (50), etc. As can be seen, the specific implementation of the present invention is made as follows.

상기 리테이너(20)는 엔진 블럭에 접하는 배면에 통상의 스태틱 씰(미도시됨)을 설치하여 리테이너(20)와 엔진 블럭과의 결합부위에서 오일이 유출되는 것을 방지할 수 있도록 함과 아울러 외부 이물질이 리테이너(20) 내부로 침입하는 것을 방지할 수 있도록 하고, 리테이너(20)의 일측에 지지 브라켓(24)을 설치하여 지지 브라켓(24)에 마그네틱 감지 센서(30)를 설치할 수 있도록 한다.The retainer 20 is provided with a normal static seal (not shown) on the rear surface in contact with the engine block to prevent oil from leaking out of the coupling portion between the retainer 20 and the engine block, as well as external foreign matters. It is possible to prevent the intrusion into the retainer 20, and to install the support bracket 24 on one side of the retainer 20 so that the magnetic detection sensor 30 can be installed on the support bracket 24.

상기 마그네틱 감지 센서(30)는 특정 극성의 자성을 감지할 수 있도록 한 것으로, 감지 센서(30)의 고정암(31)에 형성된 체결공(32)을 관통하는 볼트 등의 체결수단(33)을 리테이너(20)의 지지 브라켓(24)에 마련된 고정공(24a)에 고정시켜 마그네틱 감지 센서(30)가 리테이너(20)에 고정되도록 하되, 마그네틱 감지 센서(30)의 센싱 소자(30a)는 리테이너(20)의 씰 하우징(21) 내부 공간에 위치할 수 있도록 한다.The magnetic sensor 30 is to detect the magnetic of a specific polarity, the fastening means 33, such as a bolt through the fastening hole 32 formed in the fixed arm 31 of the sensor 30 The magnetic sensor 30 is fixed to the retainer 20 by being fixed to the fixing hole 24a provided in the support bracket 24 of the retainer 20, but the sensing element 30a of the magnetic sensor 30 is retained. It is to be located in the inner space of the seal housing 21 of the (20).

상기 리테이너(20)의 통공(23) 후측(엔진 블럭 방향)에 통공(23) 내면을 일주하게끔 형성되는 "⊥"형 플랜지 형태의 결합 부재(23b)를 마련하고, 씰링 고무(40)의 후단부가 결합 부재(23b)의 플랜지 부위를 감싸도록 결합하여 씰링 고무(40)의 임의이탈이 방지되도록 한다. The rear end of the retainer 20 is provided with a coupling member 23b in the form of a "⊥" -shaped flange formed around the inner surface of the through hole 23 so as to circumscribe the inner surface of the through hole 23, and the rear end of the sealing rubber 40. It is coupled to surround the flange portion of the additional coupling member 23b to prevent any detachment of the sealing rubber 40.

상기 리테이너(20)의 통공(23)에 결합되는 마그네틱 톤-휠(50)은 외주면에 등간격으로 분할된 다수의 자성 영역을 구비하여 각 자성 영역에 반대 극성의 자성이 교호로 착자되도록 한 것으로, 마그네틱 톤-휠(50)은 통공(23)의 전방(씰링 고무의 전측)에 회전가능하게 결합하되, 마그네틱 톤-휠(50)의 외주면이 접하는 영역에 씰 하우징(21)의 내부 영역으로 관통하는 원형 띠형태의 센싱공(23a)을 형성함으로써 마그네틱 톤-휠(60)이 회전할 시에 씰 하우징(21) 내부에 위치한 마그네틱 감지 센서(30)의 센싱 소자(30a)가 센싱공(23a)을 통해 마그네틱 톤-휠(50)의 자성 영역을 센싱할 수 있도록 한다.The magnetic tone-wheel 50 coupled to the through hole 23 of the retainer 20 has a plurality of magnetic regions divided at equal intervals on the outer circumferential surface to alternately magnetize magnets of opposite polarity in each magnetic region. , The magnetic tone-wheel 50 is rotatably coupled to the front (front side of the sealing rubber) of the through hole 23, the outer peripheral surface of the magnetic tone-wheel 50 in contact with the inner region of the seal housing 21 By forming the penetrating circular band-shaped sensing hole 23a, the sensing element 30a of the magnetic sensing sensor 30 located in the seal housing 21 is moved by the sensing hole (30) when the magnetic tone-wheel 60 rotates. Through 23a) it is possible to sense the magnetic region of the magnetic tone-wheel 50.

<발명의 작용><Action of invention>

이상의 구성으로 된 본 발명은 자동차의 엔진 블럭에 결합하여 사용하는 것으로, 크랭크 샤프트(S)가 씰링 고무(40)와 마그네틱 톤-휠(50)의 축공(51)을 관통하게 되며, 마그네틱 톤-휠(50)은 그 내측의 축공(51)에 크랭크 샤프트(S)의 외벽에 압착되도록 하여 크랭크 샤프트(S)가 구동하면 마그네틱 톤-휠(50)이 함께 구동하도록 사용하는 것이다.The present invention having the above configuration is used in combination with the engine block of the vehicle, the crankshaft (S) is to pass through the shaft hole 51 of the sealing rubber 40 and the magnetic tone wheel (50), the magnetic tone- The wheel 50 is pressed against the outer wall of the crank shaft S by the inner shaft hole 51 so that the magnetic tone-wheel 50 is driven together when the crank shaft S is driven.

본 발명은 크랭크 샤프트(S)의 외주면에 밀착되는 씰링 고무(40)에 의해 엔진 내부의 오일이 유출되는 것을 방지할 수 있도록 한 것이다.The present invention is to prevent the oil in the engine from leaking by the sealing rubber 40 in close contact with the outer peripheral surface of the crankshaft (S).

본 발명은 크랭크 샤프트(S)의 회전에 따라 함께 회전하는 마그네틱 톤-휠(50)의 외주면에 배치된 자성 영역이 마그네틱 감지 센서(30)에 감지되도록 하고, 감지 센서(30)는 크랭크 샤프트(S)의 회전수 및 회전속도 등을 검출하여 자동차의 전자 제어장치 등에 전송하여 이를 차량의 운행정보에 활용할 수 있는 것이다.The present invention allows the magnetic region disposed on the outer circumferential surface of the magnetic tone-wheel 50 rotating together with the rotation of the crankshaft S to be detected by the magnetic sensing sensor 30, and the sensing sensor 30 is a crankshaft ( The number of revolutions and the rotational speed of S) can be detected and transmitted to the electronic control device of the vehicle and used for driving information of the vehicle.

본 발명은 크랭크 샤프트(S)의 회전속도 및 회전수 등을 검출하기 위한 마그네틱 톤-휠(50)이 씰링 고무(40)의 전방을 밀폐시키는 구성을 취함으로써 마그네틱 톤-휠(50)에 의해 외부 이물질이 씰링 고무(40)에 직접 접하지 않게 되어 씰링 기능이 저하되는 것을 방지할 수 있을 뿐만 아니라 외부 이물질이 엔진 내로 유입되는 것을 최소화할 수 있게 된다.The present invention has a configuration in which the magnetic tone wheel (50) for detecting the rotational speed and the rotation speed of the crankshaft (S), etc., seals the front of the sealing rubber (40) by the magnetic tone wheel (50). Since the foreign matter does not directly contact the sealing rubber 40, it is possible not only to prevent the sealing function from being lowered, but also to minimize the inflow of foreign matter into the engine.

10: 오일 씰 20: 리테이너
21: 씰 하우징 23: 통공
30: 감지 센서 31: 고정암
40: 씰링 고무 50: 마그네틱 톤-휠10: oil seal 20: retainer
21: seal housing 23: through hole
30: detection sensor 31: fixed arm
40: sealing rubber 50: magnetic tone wheel

Claims (1)

일측에 지지 브라켓(24)이 구비되고, 엔진 블럭에 접하는 배면에 스태틱 씰이 설치되며, 씰 하우징(21)에 마련되는 통공(23)에 센싱공(23a)과 결합 부재(23b)를 각각 설치하여서 된 리테이너(20);
체결수단(31)에 의해 리테이너(20)의 지지 브라켓(24)에 고정하며, 하단부의 센싱 소자(30a)가 리테이너(20)의 씰 하우징(21) 내부 공간에 위치할 수 있도록 한 마그네틱 감지 센서(30);
리테이너(20)의 통공(23)에 마련되는 결합 부재(23b)에 결합되는 씰링 고무(40);
리테이너(20)의 통공(23)에 회전가능하게 결합하며, 반대 극성의 자성이 교호로 형성된 등간격의 자성 영역을 가지는 외주면이 통공(23)에 마련된 센싱공(23a)을 통해 드러나도록 하여 마그네틱 감지 센서(30)에 감응되도록 한 마그네틱 톤-휠(50)로 구성되어짐을 특징으로 하는 크랭크 샤프트용 오일 씰.A support bracket 24 is provided at one side, and a static seal is installed at a rear surface of the support block 24, and a sensing hole 23a and a coupling member 23b are respectively installed in the through hole 23 provided in the seal housing 21. Retainer 20;
The magnetic sensing sensor is fixed to the support bracket 24 of the retainer 20 by the fastening means 31, and the sensing element 30a at the lower end is located in the inner space of the seal housing 21 of the retainer 20. 30;
Sealing rubber 40 is coupled to the coupling member 23b provided in the through hole 23 of the retainer 20;
It is rotatably coupled to the through hole 23 of the retainer 20, the outer peripheral surface having an equally spaced magnetic region formed by alternating magnetism of the opposite polarity is exposed through the sensing hole (23a) provided in the through hole 23, the magnetic An oil seal for a crankshaft, characterized in that it consists of a magnetic tone-wheel (50) adapted to be sensed by a detection sensor (30).
KR1020100096484A 2010-10-04 2010-10-04 crank shaft's oil seal KR101217726B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101347654B1 (en) * 2012-04-30 2014-01-03 평화오일씰공업주식회사 Sealing module for engine crank shaft encoder apparatus
CN115263596A (en) * 2022-07-25 2022-11-01 东风汽车集团股份有限公司 Engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279061A (en) * 1990-03-29 1991-12-10 Ntn Corp Wheel rotating speed detecting device
JP2001082979A (en) * 1999-09-10 2001-03-30 Ntn Corp Rotating speed detecting device and wheel bearing device fitted with the device
JP2004204892A (en) * 2002-12-24 2004-07-22 Koyo Seiko Co Ltd Rolling bearing device
JP4535253B2 (en) * 2004-08-26 2010-09-01 Ｎｏｋ株式会社 Sealing device with rotary encoder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279061A (en) * 1990-03-29 1991-12-10 Ntn Corp Wheel rotating speed detecting device
JP2001082979A (en) * 1999-09-10 2001-03-30 Ntn Corp Rotating speed detecting device and wheel bearing device fitted with the device
JP2004204892A (en) * 2002-12-24 2004-07-22 Koyo Seiko Co Ltd Rolling bearing device
JP4535253B2 (en) * 2004-08-26 2010-09-01 Ｎｏｋ株式会社 Sealing device with rotary encoder

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