KR20040003136A - valve for engine vehicle - Google Patents

valve for engine vehicle Download PDF

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Publication number
KR20040003136A
KR20040003136A KR1020020037496A KR20020037496A KR20040003136A KR 20040003136 A KR20040003136 A KR 20040003136A KR 1020020037496 A KR1020020037496 A KR 1020020037496A KR 20020037496 A KR20020037496 A KR 20020037496A KR 20040003136 A KR20040003136 A KR 20040003136A
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KR
South Korea
Prior art keywords
tappet
valve
groove
valve body
spring
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KR1020020037496A
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Korean (ko)
Inventor
김우균
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현대자동차주식회사
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Priority to KR1020020037496A priority Critical patent/KR20040003136A/en
Publication of KR20040003136A publication Critical patent/KR20040003136A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/14Tappets; Push rods
    • F01L1/143Tappets; Push rods for use with overhead camshafts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE: A valve for a vehicle engine is provided to reduce parts count and weight by forming the tappet integrally with the retainer, while achieving improved productivity and fuel efficiency. CONSTITUTION: A valve comprises a valve body(21) having a coupling groove(21a) formed along the circumferential direction; a tappet(22) having an upper surface with a tappet groove(22a), a center portion with a taper hole(22b), and a bottom surface with a spring mounting groove(22c); a tappet lock(23) inserted into the gap between the valve body and the taper hole, which couples the valve body and the tappet by permitting a coupling protrusion(23a) formed at the surface of the tappet lock to be inserted into the coupling groove; a shim(24) mounted in the tappet groove, which maintains the gap between the cam and the tappet constant; a spring seat(25) arranged underneath the tappet and fixed to the cylinder head; and a valve spring(26) having both ends supported between the spring mounting groove and the spring seat.

Description

차량엔진용 밸브{valve for engine vehicle}Valve for engine vehicle

본 발명은 차량엔진용 밸브에 관한 것으로, 특히 리테이너의 역할을 수행하은 스프링안착홈을 태핏의안쪽면에 일체로 형성시켜 밸브의 구성시 부품수를 감소시키면서 전제적인 중량을 감소시키고 아울러 조립공정을 단축시키면서 연비향상에도움을 줄 수 있도록 된 차량엔진용 밸브에 관한 것이다.The present invention relates to a valve for a vehicle engine, and in particular, a spring seating groove serving as a retainer is integrally formed on the inner side of the tappet, thereby reducing the total weight while reducing the number of parts in the configuration of the valve and at the same time assembling the assembly process. The present invention relates to a valve for a vehicle engine that can shorten and improve fuel efficiency.

일반적으로, 내연기관에서 흡기밸브 또는 배기밸브로서 사용되는 종래의 밸브는 도 1에 도시된 바와 같이 실린더헤드내에서 직선왕복이동 하는 밸브몸체(11)와, 이 밸브몸체(11)의 상단에 얹혀지도록 설치되면서 캠의 회전운동에 따라 밸브몸체(11)를 직선왕복 이동시키는 태핏(12)과, 이 태핏(12)에 형성된 태핏홈(12a)으로 안착되면서 상기 캠과 태핏(12)사이의 간극을 일정하게 유지시키는 심(13)과, 상기 밸브몸체(11)의 상단측 외주면에 리테이너록(14)을 매개로 고정설치되는 리테이너(15)와, 상기 밸브몸체(11)에 의해 관통되어 리테이너(15)의 아래쪽으로 위치되면서 실린더헤드상에 위치고정되도록 설치되는 스프링시트(16)와, 상기 리테이너(15)와 스프링시트(16)사이에 양단이 지지되도록 설치되는 밸브스프링(17)으로 구성된다.In general, a conventional valve used as an intake valve or an exhaust valve in an internal combustion engine has a valve body 11 that linearly reciprocates in a cylinder head as shown in FIG. 1, and is mounted on an upper end of the valve body 11. The gap between the cam and the tappet 12 is seated by the tappet 12 which moves the valve body 11 linearly and reciprocally along with the rotational movement of the cam, and the tappet groove 12a formed in the tappet 12. Shim 13 to maintain the constant, the retainer 15 is fixed to the upper end side outer peripheral surface of the valve body 11 via the retainer lock 14, and the retainer is penetrated by the valve body 11 It is composed of a spring seat 16 which is installed to be fixed on the cylinder head while being positioned below the 15, and a valve spring 17 installed so that both ends are supported between the retainer 15 and the spring seat 16. do.

이와 같이 밸브를 구성할 때 가장 중요하게 생각하는 하나의 요인은 전체적인 중량을 감소시키는 것으로서, 중량이 감소되면 캠이 태핏(12)을 미는 힘이 줄어들게 되고 또한 직선왕복 이동하는 밸브몸체(11)의 관성을 줄일 수 있게 되며 아울러 연비향상에도 도움을 줄 수 있는 잇점이 있게 된다.One of the most important factors in constructing the valve as described above is to reduce the overall weight, and as the weight decreases, the force that the cam pushes the tappet 12 decreases, and the linearly reciprocating valve body 11 Inertia can be reduced and fuel efficiency can be improved.

그러나, 상기와 같은 종래의 밸브는 태핏(12) 및 리테이너(15)가 각각 별도의 부품으로 제작되고 또한 각각의 조립공정을 통해 조립이 이루어지게 됨으로써, 밸브의 구성시 중량감소의 목적에 역행될 뿐만 아니라, 아울러 작업공정수도 증가되어 전체적인 생산성에도 악영향을 미치게 되며, 또한 연비향상이란 목적추구에도 역행되는 문제점이 있었다.However, in the conventional valve as described above, since the tappet 12 and the retainer 15 are manufactured as separate parts, and are assembled through respective assembling processes, the valves may be opposed to the purpose of weight reduction in the construction of the valve. In addition, the number of work processes also increased, adversely affecting the overall productivity, and there was also a problem that the fuel efficiency improvement was also reversed in pursuit of the purpose.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 태핏와 리테이너를 일체로 형성시켜 부품수를 줄임으로써 전제적인 중량을 감소시키고 아울러 조립공정도 단축시켜 생산성을 향상시킴은 물론 연비향상에도 도움을 줄 수 있도록 된 차량엔진용 밸브를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, by reducing the number of parts by integrally forming the tappet and the retainer to reduce the overall weight and shorten the assembly process to improve productivity as well as to improve fuel economy. Its purpose is to provide a valve for a vehicle engine that can help.

상기와 같은 목적을 달성하기 위한 본 발명의 밸브는, 상단측에 원주방향을 따라 결합홈이 형성되는 밸브몸체와, 윗면에는 소정깊이의 태핏홈이 형성되고 중앙부에는 상하면을 관통하는 테이퍼구멍이 형성되며 아랫면에는 계단모양을 가지는 스프링안착홈이 테이퍼구멍을 중심으로 좌우대칭되게 형성되는 태핏과, 상기 밸브몸체의 상단이 테이퍼구멍으로 삽입될 때 상기 밸브몸체와 테이퍼구멍사이의 틈새로 끼워지고 일면에 형성된 결합돌기가 결합홈에 끼워지면서 상기 밸브몸체와 태핏을 결합시키도록 하는 태핏록과, 상기 태핏홈으로 안착되면서 캠과 태핏사이의 간극을 일정하게 유지시키는 심과, 상기 밸브몸체에 의해 관통되어 태핏의 아래쪽으로 위치되면서 실린더헤드상에 위치고정되도록 설치되는 스프링시트와, 상기 태핏의 스프링안착홈과 스프링시트사이에 양단이 지지되도록 설치되는 밸브스프링으로 구성되는 것을 특징으로 한다.The valve of the present invention for achieving the above object, the valve body in which the coupling groove is formed along the circumferential direction on the upper side, the tappet groove of a predetermined depth is formed on the upper surface and the tapered hole penetrating the upper and lower surfaces in the center portion is formed And a tappet having a stair-shaped spring seating groove formed at right and left symmetrically with respect to the tapered hole on the lower surface thereof, and inserted into a gap between the valve body and the tapered hole when the upper end of the valve body is inserted into the tapered hole. The formed projection is inserted into the coupling groove and the tappet lock for coupling the valve body and the tappet, and the shim for maintaining a constant gap between the cam and the tappet while being seated in the tappet groove, and penetrated by the valve body A spring seat positioned below the tappet and fixed to the cylinder head, and a spring seat of the tappet It is characterized by consisting of a valve spring installed so that both ends are supported between the groove and the spring seat.

도 1은 일반적으로 사용되는 밸브를 설명하기 위한 종단면도,1 is a longitudinal sectional view for explaining a valve generally used;

도 2는 본 발명에 따라 태핏과 리테이너가 일체로 형성된 밸브를 설명하기 위한 종단면도이다.2 is a longitudinal cross-sectional view for explaining a valve in which the tappet and the retainer are integrally formed according to the present invention.

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

21 - 밸브몸체 21a - 결합홈21-valve body 21a-coupling groove

22 - 태핏 22a - 태핏홈22-Tappet 22a-Tappet Home

22b - 테이퍼구멍 22c - 스프링안착홈22b-tapered hole 22c-spring seating groove

23 - 태핏록 23a - 결합돌기23-tappet lock 23a-mating protrusions

24 - 심 25 - 스프링시트24-Shim 25-Springsheet

26 - 밸브스프링26-valve spring

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따라 태핏과 리테이너가 일체로 형성된 밸브를 설명하기 위한 종단면도로서, 본 발명에 따른 밸브는 도 2에 도시된 바와 같이 상단측에 원주방향을 따라 결합홈(21a)이 형성되는 밸브몸체(21)와, 윗면에는 소정깊이의 태핏홈(22a)이 형성되고 중앙부에는 상하면을 관통하는 테이퍼구멍(22b)이 형성되며 아랫면에는 계단모양을 가지는 스프링안착홈(22c)이 테이퍼구멍(22b)을 중심으로 좌우대칭되게 형성되는 태핏(22)과, 상기 밸브몸체(21)의 상단이 테이퍼구멍(22b)으로 삽입될 때 상기 밸브몸체(22a)와 테이퍼구멍(22b)사이의 틈새로 끼워지고 일면에 형성된 결합돌기(23a)가 결합홈(21a)에 끼워지면서 상기 밸브몸체(21)와 태핏(22)을 결합시키도록 하는 태핏록(23)과, 상기 태핏홈(22a)으로 안착되면서 캠과 태핏(22)사이의 간극을 일정하게 유지시키는 심(24)과, 상기 밸브몸체(21)에 의해 관통되어 태핏(22)의 아래쪽으로 위치되면서 실린더헤드상에 위치고정되도록 설치되는 스프링시트(25)와, 상기 태핏(22)의 스프링안착홈(22c)과 스프링시트(25)사이에 양단이 지지되도록 설치되는 밸브스프링(26)으로 구성된다.Figure 2 is a longitudinal cross-sectional view for explaining the valve formed integrally with the tappet and the retainer according to the present invention, the valve according to the present invention is formed with a coupling groove (21a) in the circumferential direction on the upper side as shown in FIG. The valve body 21 is formed, and a tappet groove 22a having a predetermined depth is formed on the upper surface thereof, and a tapered hole 22b penetrating the upper and lower surfaces thereof is formed on the center portion thereof, and a spring seating groove 22c having a step shape is formed on the lower surface thereof. A gap between the valve body 22a and the taper hole 22b when the tappet 22 is formed to be symmetrically about 22b and the upper end of the valve body 21 is inserted into the taper hole 22b. And a tappet lock 23 to engage the valve body 21 and the tappet 22 while the coupling protrusion 23a formed at one side thereof is fitted into the coupling groove 21a, and the tappet groove 22a. While seating, the gap between the cam and the tappet 22 is kept constant. (24), a spring seat (25) installed through the valve body (21) to be positioned below the tappet (22) and fixed on the cylinder head, and a spring seating groove (of the tappet (22)). 22c) and the spring spring 25 is composed of a valve spring 26 is installed so that both ends are supported.

여기서, 상기 태핏(22)은 먼저 주조가공에 의해 그 전체적인 외형이 만들어지게 되며, 상기 태핏홈(22a)과 테이퍼구멍(22b) 및 스프링안착홈(22c)등은 주조가공이 완료된 후 2차 정밀가공을 통해 그 형상이 만들어지게 된다.Here, the tappet 22 is first made of the overall appearance by the casting process, the tappet groove 22a, the tapered hole 22b and the spring seating groove 22c, etc. after the casting process is completed secondary precision Through processing, the shape is made.

한편, 상기 테이퍼구멍(22b)은 스프링안착홈(22c)이 형성된 아래쪽에서부터 태핏홈(22a)이 형성된 위쪽으로 갈수록 직경의 크기가 점차적으로 넓어지도록 형성되는데, 그 이유는 캠의 회전운동을 전달받은 태핏(22)이 밸브몸체(21)를 따라 이동되는 것을 제한하기 위함이다.On the other hand, the tapered hole (22b) is formed so that the size of the diameter gradually increases from the bottom of the spring seating groove (22c) is formed toward the top of the tappet groove (22a), the reason for receiving the rotational movement of the cam This is to limit the tappet 22 from being moved along the valve body 21.

이와 같이 구성되는 본 발명의 밸브를 도 1에 도시된 종래의 밸브와 비교하여 볼 때, 종래의 밸브는 밸브스프링(17)을 안착시키는 리테이너(15)가 별도의 부품으로써 제작되지만, 본 발명의 밸브는 종래의 리테이너(15)의 역할을 수행하는 스프링안착홈(22c)이 태핏(22)이 만들어질 때 상기 태핏(22)의 안쪽면에 일체로 형성됨으로써, 본 발명의 밸브는 종래의 밸브에 비해 부품(리테이너)의 수가 줄어들게 된다.When comparing the valve of the present invention configured as described above with the conventional valve shown in FIG. 1, the conventional valve is manufactured as a separate part of the retainer 15 for seating the valve spring 17. The valve is formed integrally with the inner surface of the tappet 22 when the spring seating groove 22c serving as the conventional retainer 15 is formed, the valve of the present invention is a conventional valve This reduces the number of parts (retainers).

또한, 본 발명에 따른 밸브가 종래의 밸브에 비해 부품(리테이너)수가 줄어들게 되면, 밸브의 구성시 조립공정이 단축되면서 생산성도 향상시킬 수 있는 잇점을 기대할 수 있게 된다.In addition, when the valve according to the present invention reduces the number of parts (retainer) compared to the conventional valve, it is possible to expect the advantage that the productivity can be improved while shortening the assembly process when configuring the valve.

아울러, 본 발명에 따라 부품수가 줄어들게 되면 밸브의 전체중량도 줄어든 부품의 무게만큼 감소시킬 수가 있게 되며, 이로 인해 연비를 향상시킬 수 있는 잇점을 기대할 수 있게 된다.In addition, according to the present invention, when the number of parts is reduced, the total weight of the valve can also be reduced by the weight of the parts, which can be expected to improve the fuel economy.

이상 설명한 바와 같이 본 발명에 의하면, 태핏을 제작할 때 밸브스프링의 상단측을 지지하는 스프링안착홈을 태핏의 안쪽면에 일체로 형성시켜 별도의 부품으로서 사용되던 리테이너를 사용하지 않게 됨으로써, 전체적인 부품수가 줄어들게 되고 이로 인해 조립공정이 단축되면서 생산성도 향상되게 되며, 아울러 전체중량이 감소되면서 연비향상에 도움을 줄 수 있는 효과가 있게 된다.As described above, according to the present invention, when the tappet is manufactured, the spring seating groove supporting the upper side of the valve spring is integrally formed on the inner surface of the tappet, thereby eliminating the use of the retainer used as a separate part. As a result, the assembly process is shortened and productivity is improved, and the overall weight is reduced, thereby improving fuel efficiency.

Claims (2)

상단측에 원주방향을 따라 결합홈(21a)이 형성되는 밸브몸체(21)와, 윗면에는 소정깊이의 태핏홈(22a)이 형성되고 중앙부에는 상하면을 관통하는 테이퍼구멍(22b)이 형성되며 아랫면에는 계단모양을 가지는 스프링안착홈(22c)이 테이퍼구멍(22b)을 중심으로 좌우대칭되게 형성되는 태핏(22)과, 상기 밸브몸체(21)의 상단이 테이퍼구멍(22b)으로 삽입될 때 상기 밸브몸체(22a)와 테이퍼구멍(22b)사이의 틈새로 끼워지고 일면에 형성된 결합돌기(23a)가 결합홈(21a)에 끼워지면서 상기 밸브몸체(21)와 태핏(22)을 결합시키도록 하는 태핏록(23)과, 상기 태핏홈(22a)으로 안착되면서 캠과 태핏(22)사이의 간극을 일정하게 유지시키는 심(24)과, 상기 밸브몸체(21)에 의해 관통되어 태핏(22)의 아래쪽으로 위치되면서 실린더헤드상에 위치고정되도록 설치되는 스프링시트(25)와, 상기 태핏(22)의 스프링안착홈(22c)과 스프링시트(25)사이에 양단이 지지되도록 설치되는 밸브스프링(26)으로 구성되는 차량엔진용 밸브.The valve body 21 in which the coupling groove 21a is formed along the circumferential direction at the upper end side, and the tappet groove 22a of a predetermined depth are formed in the upper surface, and the taper hole 22b which penetrates the upper and lower sides is formed in the center surface, and the lower surface is formed. The tappet 22 having a stair-shaped spring seating groove 22c is formed to be symmetrical with respect to the tapered hole 22b, and when the upper end of the valve body 21 is inserted into the tapered hole 22b. The valve body 22a and the taper hole 22b are inserted into the gap, and the coupling protrusion 23a formed on one surface is fitted into the coupling groove 21a so as to couple the valve body 21 and the tappet 22 together. The tappet lock 23 and the shim 24 which are seated by the tappet groove 22a to keep the gap between the cam and the tappet 22 constant and the tappet 22 penetrated by the valve body 21. Spring seat 25 is installed to be fixed on the cylinder head while being positioned below the, Valve for a vehicle engine comprising a valve spring 26 which is installed so that both ends are supported between the spring receiving groove (22c) and spring seat (25) of the tappet (22). 제 1항에 있어서, 상기 테이퍼구멍(22b)은 스프링안착홈(22c)이 형성된 아래쪽에서부터 태핏홈(22a)이 형성된 위쪽으로 갈수록 직경의 크기가 점차적으로 넓어지게 형성되는 것을 특징으로 하는 차량엔진용 밸브.2. The vehicle engine according to claim 1, wherein the tapered hole (22b) is formed such that the diameter of the tapered hole (22b) is gradually widened from the bottom where the spring seating groove (22c) is formed to the top where the tappet groove (22a) is formed. valve.
KR1020020037496A 2002-06-29 2002-06-29 valve for engine vehicle KR20040003136A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941102A (en) * 1973-08-18 1976-03-02 British Leyland Uk Limited Bucket tappets
JPS5832108U (en) * 1981-08-28 1983-03-02 いすゞ自動車株式会社 Spring seat and valve tappet
JPS626406U (en) * 1985-06-28 1987-01-16
JPS628305U (en) * 1985-07-01 1987-01-19
JPS6434405U (en) * 1987-08-25 1989-03-02
KR19980037536U (en) * 1996-12-17 1998-09-15 박병재 Tappet assembly of intake and exhaust valve
KR19980048159A (en) * 1996-12-17 1998-09-15 박병재 Solid tappet with integrated retainer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941102A (en) * 1973-08-18 1976-03-02 British Leyland Uk Limited Bucket tappets
JPS5832108U (en) * 1981-08-28 1983-03-02 いすゞ自動車株式会社 Spring seat and valve tappet
JPS626406U (en) * 1985-06-28 1987-01-16
JPS628305U (en) * 1985-07-01 1987-01-19
JPS6434405U (en) * 1987-08-25 1989-03-02
KR19980037536U (en) * 1996-12-17 1998-09-15 박병재 Tappet assembly of intake and exhaust valve
KR19980048159A (en) * 1996-12-17 1998-09-15 박병재 Solid tappet with integrated retainer

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