KR20030077864A - Sealing device for rotary engine - Google Patents

Sealing device for rotary engine Download PDF

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Publication number
KR20030077864A
KR20030077864A KR1020020016821A KR20020016821A KR20030077864A KR 20030077864 A KR20030077864 A KR 20030077864A KR 1020020016821 A KR1020020016821 A KR 1020020016821A KR 20020016821 A KR20020016821 A KR 20020016821A KR 20030077864 A KR20030077864 A KR 20030077864A
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KR
South Korea
Prior art keywords
oil seal
housing
rotating body
rotor
intake
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KR1020020016821A
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Korean (ko)
Inventor
김동현
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김동현
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Priority to KR1020020016821A priority Critical patent/KR20030077864A/en
Publication of KR20030077864A publication Critical patent/KR20030077864A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/08—Outer members for co-operation with rotary pistons; Casings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)

Abstract

PURPOSE: A sealing device is provided to achieve improved smoothness of rotation of the rotor, while reducing the gap formed between the housing and rotor. CONSTITUTION: A rotary engine comprises a cylindrical housing(2) having an intake port, an exhaust port, an ignition plug and an elliptical guide; one or more operating chambers(34,36) mounted in the housing in such a manner that the operating chambers are rotatable; and a rotor(4) having a piston arranged in each of operating chambers. A sealing device comprises oil seals(8,10) having a communication tube(6) protruded inward, and which are elastically interposed between the housing and the rotor; an auxiliary oil seal(14) for interconnecting the communication tube of the oil seal and an intake/exhaust hole of the rotor; and side oil seals(16,18) elastically arranged in the housing.

Description

로타리기관의 밀봉장치{Sealing device for rotary engine}Sealing device for rotary engines

본 발명은 로타리기관의 윤활유누설을 방지하기 위한 밀봉장치에 관한 것이다.The present invention relates to a sealing device for preventing lubricant leakage of the rotary engine.

로타리기관에 대하여 본건 출원인은 특허출원 제2001-35282호 와 동제2002-10164호등을 출원한 바 있으며, 이들은 원통형 하우징 내에 각기 독립된 수개의 피스톤을 갖는 회전체를 회전가능케 설치하여 회전체의 회전시 각 피스톤이 타원형 안내대의 안내로 하우징이 갖는 흡입구와 점화부 및 배기구를 통과하면서 4행정이 이루어지도록 구성된다.For the Rotary Institution, the applicant has filed a patent application No. 2001-35282 and No. 2002-10164, etc., and these are installed in a cylindrical housing so as to enable rotatable bodies having several independent pistons. The piston is configured to make four strokes while passing through the inlet, ignition and exhaust ports of the housing with the guide of the elliptical guide.

이러한 기관으로서의 행정시 회전축 내부의 윤활유 공급로와 공급용 구멍과 배출용 구멍 및 윤활유 배출로을 통하여 윤활유가 순환되도록 하고, 밀봉을 요하는 요소요소에는 오일씰을 형성하여 누설을 방지토록 하고 있다.During the stroke as the engine, the lubricating oil is circulated through the lubricating oil supply passage, the supplying hole, the discharging hole, and the lubricating oil discharge path inside the rotating shaft, and an oil seal is formed on the element that requires sealing to prevent leakage.

그러나 비 밀봉부분에는 하우징과 회전체 사이에 과도한 유격이 발생되므로 회전체의 회전이 원활하게 이루어질 수가 없고 또 이로 인하여 오일씰에는 회전체의 진동 등에 의해 충격이 집중되므로 마모가 급속도로 진행되며 마모시에는 유격발생으로 오일씰로서의 기능을 상실할 우려가 있는 것이다.However, since excessive play occurs between the housing and the rotating body in the non-sealed part, the rotation of the rotating body cannot be made smoothly, and as a result, the oil seal is concentrated rapidly due to the vibration of the rotating body. There is a risk that the oil seal will lose its function as an oil seal.

이에 본 고안은 하우징과 회전체 사이의 유격을 최소화할 수가 있고, 마모시에도 기능상실우려가 없는 밀봉장치를 제공하고자 한 것으로서, 하우징과 회전체 사이에 이중구조로서 수개로 분리구성되며 스프링이 외측으로 탄력지지하는 오일씰과, 상기 오일씰의 연통관과 회전체의 흡배기공 사이에 탄력설치되는 보조오일씰과, 하우징의 일측 내면 중 소정의 구간에 탄력있게 설치되며 하우징과 회전체 사이의 오일씰 및 회전체의 일측면 일부와 접촉하는 오일씰로 구성함을 특징으로 한다.The present invention is to provide a sealing device that can minimize the play between the housing and the rotating body, there is no functional loss even when worn, it is composed of a plurality of separate structure between the housing and the rotating body, the spring is outside The oil seal to be elastically supported by the oil seal, the auxiliary oil seal elastically installed between the communication tube of the oil seal and the intake and exhaust hole of the rotating body, and elastically installed in a predetermined section of one inner surface of the housing, and the oil seal and the rotating body between the housing and the rotating body. Characterized in that it consists of an oil seal in contact with a portion of one side.

도 1 : 본 발명의 분해사시도1 is an exploded perspective view of the present invention

도 2 : 본 발명의 평단면구성도2 is a cross-sectional view of the present invention

도 3 : 본 발명의 요부분해사시도3 is a partial perspective view of the present invention

도 4 : 본 발명의 요부를 분해한 단면구성도4 is a cross-sectional configuration diagram illustrating main parts of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

(2)--하우징(4)--회전체(2)-housing (4)-rotating body

(6)--연통관(8)(10)--오일씰(6)-Communication tube (8) (10)-Oil seal

(12)--흡배기공(14)--보조오일씰(12)-Intake / exhaust hole (14)-Secondary oil seal

(16)(18)--측면오일씰(20)--작동실(16) (18)-Side Oil Seal (20)-Operating Room

(21)--틈(22)--판스프링(21)-Gap (22)-Plate Spring

(24)(28)--결합홈(26)--유도로(24) (28)-Joining Groove (26)-Induction

(30)--코일스프링(32)--지지링(30)-coil spring (32)-support ring

(34)(36)--작동실(38)(40)--코일스프링(34) (36)-Operating Chamber (38) (40)-Coil Spring

(42)--피스톤(44)--유도막대(42)-piston (44)-guide rod

(45)--회전축(46)--윤활유 공급로(45)-Rotary Shaft (46)-Lubricant Supply Channel

(48)(50)--공급용 구멍(52)--안내대(48) (50)-Supply Holes (52)-Guide

(54)--덮개(54)-cover

도 1은 본 발명의 분해사시도로서, 본 발명은 원통형 하우징(2)과 회전체(4) 사이에 탄력설치되고 또 내,외측 이중구조로서 수개로 분리구성되며 연통관(6)을 갖는 오일씰(8)(10)과, 외측 오일씰(8)이 갖는 연통관(6)과 회전체(4)의 흡배기공 (12) 사이에 탄력설치되는 보조오일씰(14)과, 하우징(2)의 내부일측 중 소정의 구간에 탄력설치되고 오일씰(8)(10) 일측과 회전체(4)의 일측면 일부와 긴밀히 접촉하는 측면 오일씰(16)(18)로 구성된다.1 is an exploded perspective view of the present invention, the present invention is elastically installed between the cylindrical housing (2) and the rotating body (4) and the oil seal (8) having a communication pipe (6), which is composed of several separate components as an inner and outer double structure. ), The auxiliary oil seal 14 resiliently installed between the communication pipe 6 of the outer oil seal 8 and the intake and exhaust holes 12 of the rotor 4, and a predetermined one of the inner one side of the housing 2; Resilient installation in the section of the oil seal (8) (10) one side and the side oil seal (16) (18) is in close contact with a portion of one side of the rotating body (4).

상기에 있어 하우징(2)과 회전체(4) 사이에 설치되는 오일씰(8)(10)은 가급적 내외측 각각 회전체(4)의 작동실(20)과 같은 갯수로서 결합시 그 연결부가 내,외측 서로 어긋나게 분리구성하고, 내측 오일씰(10)과 회전체(4) 사이에는 파도형의 판스프링(22)을 탄력설치하되 외측 오일씰(8)에는 각기 소정 직경으로서 단부로부터 결합홈(24)을 갖는 연통관(6)을 내측으로 돌출형성하고, 오일씰(8) 사이사이에는 약간의 틈(21)을 갖도록 하며, 내측 오일씰(10)의 일측 단부 중 외측 오일씰(8) 사이사이의 틈(21)과 인접한 지점에 유도로(26)을 연장형성하여 구성한다.In the above, the oil seals 8 and 10 installed between the housing 2 and the rotating body 4 are the same number as the operating chamber 20 of the rotating body 4, respectively, as much as possible. The outer side is separated from each other, and the inner oil seal 10 and the rotating body 4 between the wave plate spring 22 is elastically installed, but the outer oil seal 8, each of the coupling groove 24 from the end as a predetermined diameter The communication tube (6) having a protruding inward, and has a slight gap 21 between the oil seals (8), the gap between the outer oil seals (8) of one side end of the inner oil seal (10) (21) Induction furnace 26 is formed to extend to a point adjacent to the).

보조오일씰(14)은 도 3에서와 같이 원통형으로서, 일측이 절개된 내,외측관체로 분리구성되고 외측 오일씰(8)이 갖는 연통관(6)의 결합홈(24)과 회전체(4)의 흡배기공(12) 주위에 빙둘러 형성된 결합홈(28) 사이에 연결설치되며 결합에 앞서 연통관(6)의 결합홈(24)에는 코일스프링(30)을 삽입하여 상기 코일스프링(30)이 보조오일씰(14)을 내측으로 탄력지지하도록 한다.The auxiliary oil seal 14 has a cylindrical shape as shown in FIG. 3, and is separated into an inner and an outer pipe in which one side is cut, and the coupling groove 24 and the rotating body 4 of the communication pipe 6 included in the outer oil seal 8. It is installed between the coupling grooves 28 formed around the intake and exhaust holes 12, and the coil spring 30 is assisted by inserting the coil spring 30 into the coupling groove 24 of the communication tube 6 prior to the coupling. The oil seal 14 is elastically supported inward.

또한 본 발명은 오일씰의 연통관과 상기 연통관을 통하여 연결되는 보조오일씰 및 회전체에 형성되는 결합홈을 회전체의 회전방향에 따라 경사지게 형성해 줄 수도 있다.In another aspect, the present invention may be formed inclined according to the rotation direction of the rotating body of the oil seal communication tube and the auxiliary oil seal and the rotating body connected through the communication tube.

측면오일씰(16)(18)은 피스톤 안내장치의 채택유무에 따라 하우징(2) 중 윤활유 유입부쪽에 위치한 덮개나 또는 별도의 지지링(32)에 형성되는 원호형 작동실 (34)(36)내에 스프링(38)(40)으로 탄력설치되는 것으로서, 가급적 그 외경은 하우징(2)의 내경과 같거나 작게 형성하고, 내경은 회전체(4)의 직경보다 작고 또 피스톤 안내장치를 갖는 경우 피스톤(42)을 안내하는 유도막대(44)의 작동에 방해를 주지 않는 범위내에서 결정되며, 설치구간은 측면상 전구간 중 흡입구간과 점화구간 및 배기구간에 해당하는 구간에 위치하도록 한다.The side oil seals (16) and (18) are arc-shaped operation chambers (34) and (36) formed in a cover located on the lubricating oil inlet side of the housing (2) or in a separate support ring (32) depending on whether the piston guide device is adopted. It is elastically installed with springs 38 and 40 therein, preferably its outer diameter is equal to or smaller than the inner diameter of the housing 2, and the inner diameter is smaller than the diameter of the rotor 4 and has a piston guide. It is determined within the range that does not interfere with the operation of the guide bar (44) for guiding (42), the installation section is to be located in the section corresponding to the suction section, the ignition section and the exhaust section of the entire section on the side.

본 발명은 하우징(2)과 회전체(4) 사이에 설치되는 오일씰(8)(10)은 판스프링(22)의 탄발력에 의해 하우징(2)의 내벽과 긴밀히 접촉하게 된다.According to the present invention, the oil seals 8 and 10 installed between the housing 2 and the rotating body 4 are in intimate contact with the inner wall of the housing 2 by the elastic force of the leaf spring 22.

또한 외측씰(8)의 연통관(6)이 갖는 결합홈(24)과 회전체(4)의 결합홈(28) 사이에 탄력설치되는 보조오일씰(14)은 연통관(6)의 코일스프링(30)이 내측으로 탄력지지하여 회전체(4)와 강한 결속력을 갖도록 하므로서 회전체(4)의 회전시 오일씰 (8)(10)은 보조오일씰(14)에 의해 회전체(4)와 일체감을 갖고 함께 회전하게 된다.In addition, the auxiliary oil seal 14 that is elastically installed between the coupling groove 24 of the communication tube 6 of the outer seal 8 and the coupling groove 28 of the rotating body 4 has a coil spring 30 of the communication tube 6. ) Is elastically supported inward so as to have a strong binding force with the rotor 4, the oil seal (8) 10 during the rotation of the rotor 4 has a sense of unity with the rotor 4 by the auxiliary oil seal (14) Will rotate together.

또한 측면 오일씰(16)(18)은 측면상 하우징(2)의 흡기구간과 점화구간 및 배기구간에 위치하게 되므로 상시 오일씰 (8)(10)의 측단부 및 회전체(4)의 측면 일부와 긴밀히 접촉하게 되어 회전체(4)의 회전시 상기 해당구간 내에 진입한 오일을 차단해 주게 된다.In addition, the side oil seals 16 and 18 are located in the inlet section, the ignition section and the exhaust section of the housing 2 on the side, so that the side ends of the oil seals 8 and 10 and a part of the side of the rotating body 4 are always present. In close contact with each other, the oil entering the corresponding section is blocked when the rotor 4 rotates.

한편 윤활유는 종전과 같이 회전축(45) 일측의 윤활유 공급로(46)와 여러개의 공급용 구멍(48)(50)을 통하여 하우징(2)과 회전체(4) 사이, 회전체(4)와 피스톤(42)사이, 회전체(14)와 안내대(52)사이 등으로 고루 유입되어 윤활작용을 하며 배출용 구멍(도시안됨)과 회전축 타측의 윤활유 배출로(도시안됨)를 따라 배출되어 순환하게 된다.Meanwhile, the lubricating oil is, as before, between the housing 2 and the rotating body 4 through the lubricating oil supply path 46 on one side of the rotating shaft 45 and a plurality of supply holes 48 and 50, and the rotating body 4 and Evenly flows between the pistons 42, between the rotor 14 and the guide 52, and lubrication, and is discharged along the discharge hole (not shown) and the lubricating oil discharge path (not shown) on the other side of the rotating shaft and circulated Done.

다만 회전축(45)의 공급용 구멍(48)을 통하여 하우징(2)의 일측 덮개(54)와 회전체(4) 사이로 공급된 윤활유는 회전체(4)의 원심력에 의해 사방으로 흩어지면서 하우징 본체와 회전체(4) 사이로 공급되는데 이때 흡기구간과 점화구간 및 배기구간에 진입한 오일씰(8)(10) 측단부와 회전체(4)의 측면 일부는 측면 오일씰(16)(18)이 밀접하고 있어 이 구간을 제외한 구간을 통하여 윤활유가 공급되므로 4행정시 흡기구와 점화실 및 배기구에 유입되는 윤활유를 최소화할 수가 있게 된다.However, the lubricating oil supplied between the cover 54 of the housing 2 and the rotating body 4 through the supply hole 48 of the rotating shaft 45 is scattered in all directions by the centrifugal force of the rotating body 4 and the housing main body. And the oil seals (8) and (10) side end portions of the oil seals (8) and (10) that enter the intake section, the ignition section, and the exhaust section, and the side oil seals (16) and (18) closely contact each other. Since lubricating oil is supplied through the section except this section, it is possible to minimize the lubricating oil flowing into the intake port, the ignition chamber and the exhaust port during the four stroke.

또한 회전체(4)의 원심력에 의해 사방으로 흩어진 윤활유 중 일부는 내측 오일씰(10)이 갖는 유도로(26)의 유도로 외측 오일씰(8) 사이사이에 갖는 틈(21)으로 공급되어 하우징(2)과 외측 오일씰(8) 사이에서 윤활작용을 하게 된다.In addition, a part of the lubricating oil scattered in all directions by the centrifugal force of the rotating body 4 is supplied to the gap 21 provided between the outer oil seals 8 of the induction furnace 26 of the inner oil seal 10 and the housing ( Lubricate between 2) and the outer oil seal (8).

또한 오일씰(8)(10)을 탄력지지하는 파도형의 판스프링(22)으로 인하여 회전체(4)와 내측 오일씰(10) 사이에 갖는 넓은 틈으로 유입되는 윤활유는 회전체(4)와 외측 오일씰(8) 사이에 연결된 보조오일씰(14)로 인하여 작동실(20) 내부로 유입될 우려가 없어 거의 완전한 밀봉기능을 발휘하게 되는 것이다.In addition, the lubricating oil flowing into the wide gap between the rotating body 4 and the inner oil seal 10 due to the wave plate leaf 22 of the oil seals (8) and (10) elastically supports the rotating body (4) and the outside Due to the secondary oil seal 14 connected between the oil seal (8) there is no fear of flowing into the operating chamber 20 is to exhibit an almost complete sealing function.

이와 같이 본 발명은 보조오일씰(14)은 회전체(4)의 작동실(20)을 밀봉하고, 측면 오일씰(16)(18)은 하우징(2)의 흡입구와 점화실과 배기구로 유입되는 윤활유량을 최소화시켜 주며 또한 판스프링(22)에 의해 탄력지지되고 회전체(4)와 일체감을 갖고 함게 회전하는 오일씰(8)(10)이 하우징(2) 내면과 전체적으로 밀접하게 되므로 하우징(2)과 회전체(4) 사이의 유격을 최소화시켜 줄 수가 있어 회전체(4)의 회전이 원활하게 이루어질 수가 있고 또 오일씰(8)의 마모율을 줄일 수가 있으며 마모시에도 스프링의 탄발력으로 유격을 없애주게 되므로 수명이 다할때까지 밀봉기능을 상실할 우려가 없어 거의 완벽한 밀봉기능을 발휘할 수가 있는 유용한 발명인 것이다.Thus, in the present invention, the auxiliary oil seal 14 seals the operation chamber 20 of the rotating body 4, and the side oil seals 16 and 18 are lubricating oil flowed into the inlet, the ignition chamber, and the exhaust port of the housing 2. Oil seals (8) and (10), which are elastically supported by the leaf spring (22) and rotate together with the rotor (4), are brought into close contact with the inner surface of the housing (2). The gap between the rotors 4 can be minimized, so that the rotors 4 can be rotated smoothly, and the wear rate of the oil seal 8 can be reduced. Therefore, there is no risk of losing the sealing function until the end of life is a useful invention that can exhibit a nearly perfect sealing function.

Claims (2)

흡기구와 배기구와 점화플러그 및 타원형 안내대를 갖는 원통형 하우징과, 상기 하우징 내에 회전가능케 설치되고 각기 흡배기공을 갖는 한개 이상의 작동실이 형성되고, 각 작동실에는 안내대와의 미끄럼접촉으로 4행정이 이루어지는 피스톤이 설치된 회전체로 구성되며 회전축에는 윤활유 공급로와 공급용 구멍과 배출용 구멍과 윤활유 배출로가 형성된 로타리기관에 있어서, 내,외측부의 이중구조로서 각각 수개로 분리구성되고 외측부에는 연통관(6)이 내측으로 돌출형성되며 하우징(2)과 회전체(4) 사이에 탄력설치되는 오일씰(8)(10)과, 오일씰(8)의 연통관(6)과 회전체(4)의 흡배기공(12)을 연결하는 보조오일씰(14)과, 하우징(2)의 내부 일측 중 소정의 구간에 탄력설치되는 원호형의 측면 오일씰(16)(18)로 구성하여서 된 로타리기관의 밀봉장치.A cylindrical housing having an inlet, an exhaust port, a spark plug and an elliptical guide, and one or more operating chambers rotatably installed in the housing, each having an intake and exhaust hole, and each operating chamber has four strokes in sliding contact with the guide. It consists of a rotating body provided with a piston made of a rotary shaft in the rotary shaft formed of a lubricating oil supply path, a supply hole, a discharge hole and a lubricating oil discharge path, each of which is separated into a double structure of the inner and outer parts, and the communication pipe ( 6) is protruded inward and the oil seal (8) 10, which is elastically installed between the housing (2) and the rotating body (4), the intake and exhaust holes of the communication tube (6) and the rotating body (4) of the oil seal (8) 12. A sealing device for a rotary engine, comprising an auxiliary oil seal (14) for connecting (12) and an arc-shaped side oil seal (16) (18) that is elastically installed in a predetermined section of an inner side of the housing (2). 제1항에 있어서, 오일씰(8)의 연통관(6)과 회전체(4)의 흡배기공(12) 주위에 소정 직경의 결합홈(24)(28)을 형성하여 연통관(6)의 결합홈(24)에 스프링(30)을 삽입한 다음 결합홈(24)(28) 사이에 보조오일씰(14)을 연결설치하여서 된 로타리기관의 밀봉장치.The coupling groove of the communication tube (6) according to claim 1, wherein coupling grooves (24) and (28) of a predetermined diameter are formed around the communication tube (6) of the oil seal (8) and the intake and exhaust holes (12) of the rotating body (4). Inserting the spring (30) in the (24) and then connecting the auxiliary oil seal (14) between the coupling grooves (24) and (28) sealing device of the rotary engine.
KR1020020016821A 2002-03-27 2002-03-27 Sealing device for rotary engine KR20030077864A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116677493A (en) * 2023-08-02 2023-09-01 成都工业学院 Circumferential rotor engine

Citations (7)

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Publication number Priority date Publication date Assignee Title
JPS5360411A (en) * 1976-11-12 1978-05-31 Toyota Motor Corp Oil seal equipment in rotary piston engine
JPS5537510A (en) * 1978-09-06 1980-03-15 Nok Corp Oil sealer for rotary piston engine
JPS60224901A (en) * 1984-04-23 1985-11-09 Mazda Motor Corp Side seal device of rotary piston engine
JPS62258120A (en) * 1986-04-30 1987-11-10 Mazda Motor Corp Side housing for rotary piston engine
JPS62258121A (en) * 1986-04-30 1987-11-10 Mazda Motor Corp Side housing for rotary piston engine
KR200270630Y1 (en) * 2001-05-26 2002-04-03 김동현 rotary engine
KR200275873Y1 (en) * 2001-08-30 2002-05-16 김동현 Guide device for the piston of rotary engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360411A (en) * 1976-11-12 1978-05-31 Toyota Motor Corp Oil seal equipment in rotary piston engine
JPS5537510A (en) * 1978-09-06 1980-03-15 Nok Corp Oil sealer for rotary piston engine
JPS60224901A (en) * 1984-04-23 1985-11-09 Mazda Motor Corp Side seal device of rotary piston engine
JPS62258120A (en) * 1986-04-30 1987-11-10 Mazda Motor Corp Side housing for rotary piston engine
JPS62258121A (en) * 1986-04-30 1987-11-10 Mazda Motor Corp Side housing for rotary piston engine
KR200270630Y1 (en) * 2001-05-26 2002-04-03 김동현 rotary engine
KR200275873Y1 (en) * 2001-08-30 2002-05-16 김동현 Guide device for the piston of rotary engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116677493A (en) * 2023-08-02 2023-09-01 成都工业学院 Circumferential rotor engine
CN116677493B (en) * 2023-08-02 2023-09-26 成都工业学院 Circumferential rotor engine

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