KR100531827B1 - Suction valve assembly for reciprocating compressor - Google Patents
Suction valve assembly for reciprocating compressor Download PDFInfo
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- KR100531827B1 KR100531827B1 KR10-2003-0092667A KR20030092667A KR100531827B1 KR 100531827 B1 KR100531827 B1 KR 100531827B1 KR 20030092667 A KR20030092667 A KR 20030092667A KR 100531827 B1 KR100531827 B1 KR 100531827B1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
본 발명은 왕복동식 압축기의 흡입밸브 조립체에 관한 것으로, 본 발명은 소정의 길이와 직경을 갖는 몸통부에 가스가 통과하는 가스유로를 관통 형성하여 실린더에서 직선 왕복운동을 할 수 있도록 삽입하는 피스톤과, 피스톤의 선단면에 고정하는 고정부 및 이 고정부에 연결하여 피스톤의 가스유로를 통과하는 가스에 의해 젖혀졌다가 펴지면서 상기한 피스톤의 선단면을 개폐하는 고정부를 구비한 밸브판재로 된 왕복동식 압축기의 흡입밸브 조립체에 있어서, 피스톤의 선단면 중에서 가스유로의 출구단 맞은편에 상기 밸브판재와 소정의 간격을 가지도록 여유경사면을 형성함으로써, 흡입밸브의 열림속도를 높여 냉매가스의 흡입량을 증가시키고 이를 통해 압축기 성능을 향상시킬 수 있을 뿐만 아니라 흡입밸브의 흡입밸브의 누적피로를 줄여 수명을 연장할 수 있다.The present invention relates to a suction valve assembly of a reciprocating compressor, and the present invention provides a piston through which a gas passage through which gas passes through a body portion having a predetermined length and diameter is inserted into the cylinder for linear reciprocating motion. And a valve plate member having a fixing part fixed to the front end face of the piston and a fixing part connected to the fixing part to open and close the tip end face of the piston while being opened and unfolded by the gas passing through the gas flow path of the piston. In the intake valve assembly of a reciprocating compressor, an inclined surface is formed in the front end surface of the piston opposite the outlet end of the gas flow passage so as to have a predetermined distance from the valve plate material, thereby increasing the opening speed of the intake valve to increase the suction amount of the refrigerant gas. To increase compressor performance and to reduce the cumulative fatigue of the suction valve You can extend people.
Description
본 발명은 왕복동식 압축기의 흡입밸브 조립체에 관한 것으로, 특히 피스톤의 선단면에 경사면을 형성하여 흡입밸브가 용이하게 열리도록 하는 왕복동식 압축기의 흡입밸브 조립체에 관한 것이다.The present invention relates to an intake valve assembly of a reciprocating compressor, and more particularly, to an intake valve assembly of a reciprocating compressor to form an inclined surface on the front end surface of the piston so that the intake valve can be easily opened.
일반적으로 압축기(Compressor)는 공기나 냉매가스 등의 유체를 압축시키는 기계이다. 압축기는 보통 밀폐용기의 내부에 설치하여 구동력을 발생하는 전동기구부와, 전동기구부의 구동력을 전달받아 가스를 흡입하여 압축하는 압축기구부를 포함한다. Generally, a compressor is a machine that compresses a fluid such as air or refrigerant gas. The compressor usually includes an electric mechanism part installed inside the sealed container to generate a driving force, and a compressor mechanism part for receiving and compressing gas by receiving the driving force of the electric device part.
이러한 압축기는 전동기구부 및 압축기구부의 가스 압축 매카니즘에 따라 로터리식 압축기(Rotary Compressor), 왕복동식 압축기(Reciprocating Compressor), 스크롤 압축기(Scroll Compressor) 등으로 나누어진다.Such compressors are classified into a rotary compressor, a reciprocating compressor, a scroll compressor, and the like according to the gas compression mechanism of the electric mechanism part and the compression mechanism part.
왕복동식 압축기는 전동기구부의 구동력을 피스톤에 전달하여 그 피스톤이 실린더 내부를 직선으로 왕복운동하면서 냉매가스를 흡입하고 압축하여 토출하는 것이다.The reciprocating compressor transmits the driving force of the electric mechanism part to the piston, and the piston sucks, compresses and discharges the refrigerant gas while linearly reciprocating the inside of the cylinder.
도 1 및 도 2는 종래 왕복동식 압축기의 압축기구부에 대한 일례를 도시한 단면도 및 분해사시도로서, 이에 도시한 바와 같이 종래 왕복동식 압축기의 압축기구부는 내부에 압축공간을 이루는 관통구멍(1a)을 형성하여 프레임(1)의 실린더구멍(1a)에 삽입 고정하는 실린더(2)와, 실린더(2)의 관통구멍(2a)에 직선 운동 가능하도록 삽입하는 피스톤(3)과, 피스톤(3)의 선단면에 설치하여 가스유로(F)를 개폐하는 흡입밸브(4)와, 실린더(1)의 단부에 결합하여 관통구멍(2a)을 복개하는 토출밸브(5)와, 토출밸브(5)를 탄력 지지하는 밸브스프링(6)과, 토출밸브(5)와 밸브스프링(6)을 수용하여 프레임(1)에 고정하는 토출커버(7)를 포함하고 있다.1 and 2 are cross-sectional views and an exploded perspective view showing an example of the compression mechanism of the conventional reciprocating compressor, as shown in the compression mechanism of the conventional reciprocating compressor has a through hole (1a) forming a compression space therein A cylinder (2) which is formed to be inserted into and fixed in the cylinder hole (1a) of the frame (1), a piston (3) inserted into the through hole (2a) of the cylinder (2) so that linear movement is possible, and the piston (3) A suction valve 4 installed at the front end surface to open and close the gas flow path F, a discharge valve 5 coupled to an end of the cylinder 1 to cover the through hole 2a, and a discharge valve 5; A resiliently supported valve spring 6 and a discharge cover 7 for receiving the discharge valve 5 and the valve spring 6 to be fixed to the frame 1 are included.
피스톤(3)은 소정 길이의 환봉체 형상을 갖는 몸통부(3a)의 일 측에 헤드부(3b))를 형성하고 몸통부(3a)의 타 측에 전동기구부와 연결하는 연결부(미도시)를 형성하고 있다. 그리고 피스톤(3)을 통과하여 냉매가스가 유동할 수 있도록 가스유로(F)를 관통 형성하되 그 가스유로(F)는 몸통부(3a)의 가운데 소정의 깊이를 갖도록 형성하는 제1 가스통로(3c)와, 그 제1 가스통로(3c)와 연통하도록 헤드부(3b)내에 관통 형성하는 제2 가스통로(3d)로 이루어져 있다. The piston (3) forms a head portion (3b) on one side of the body portion (3a) having a round rod shape of a predetermined length and a connecting portion (not shown) for connecting with the electric machine portion on the other side of the body portion (3a) To form. In addition, the gas passage F may be formed to pass through the piston 3 so that the refrigerant gas may flow, but the gas passage F may be formed to have a predetermined depth among the trunk portions 3a. 3c and the 2nd gas path 3d which penetrates in the head part 3b so that it may communicate with the 1st gas path 3c.
또, 헤드부(3b)의 선단면은 평면으로 밸브접촉면(S)을 이루고 그 밸브접촉면(S)의 중앙부위에는 흡입밸브(4)를 체결볼트(B)로 결합하기 위한 체결홈(3e)을 형성하고 있다.In addition, the front end surface of the head portion 3b forms a valve contact surface S in a plane, and a fastening groove 3e for coupling the suction valve 4 to the fastening bolt B is formed at the center of the valve contact surface S. Forming.
흡입밸브(4)는 도 2에 도시한 바와 같이, 피스톤(3)의 밸브접촉면(S)과 상응하도록 얇은 평판인 원형판으로 형성하고, 그 원형판의 중앙부를 절개하여 고정부(4a)를 형성하며, 그 고정부(4a)에 연결하여 원형판의 가장자리에는 양팔 모양의 개폐부(4b)를 형성하고 있다.As shown in FIG. 2, the intake valve 4 is formed of a circular plate having a thin flat plate so as to correspond to the valve contact surface S of the piston 3, and the center portion of the circular plate is cut off to form the fixing portion 4a. It connects to the fixing part 4a, and the opening-and-closing part 4b of both arms shape is formed in the edge of a circular plate.
고정부(4a)에는 상기한 피스톤(3)의 체결홈(3e)에 상응하도록 관통공(4c)을 관통 형성하고, 개폐부(4b)는 고정부(4a)에서 양측으로 벌어지도록 연장하여 폐곡선 모양으로 형성하고 있다.The through hole 4c is formed through the fixing part 4a so as to correspond to the fastening groove 3e of the piston 3, and the opening and closing part 4b extends so as to open to both sides from the fixing part 4a to form a closed curve. Formed.
도면중 미설명 부호인 8은 가스토출관, D는 토출공간, P는 압축공간이다.In the drawings, reference numeral 8 denotes a gas discharge pipe, D denotes a discharge space, and P denotes a compressed space.
상기한 바와 같은 종래 왕복동식 압축기의 압축기구부는 다음과 같이 동작한다.The compression mechanism of the conventional reciprocating compressor as described above operates as follows.
즉, 피스톤(3)이 전동기구부의 구동력을 전달받아 실린더(2)의 관통구멍(2a) 내부에서 직선으로 왕복운동을 한다. That is, the piston 3 receives the driving force of the electric mechanism part to reciprocate linearly in the through hole 2a of the cylinder 2.
이 과정에서 도 3에서와 같이, 피스톤(3)이 하사점 방향으로 이동하면 토출밸브(5)는 실린더(2)의 단부에 접촉하여 압축공간(P)을 막고 이와 동시에 피스톤(3)에 결합한 흡입밸브(4)의 일부분이 압력차에 의해 휘어지면서 피스톤(3) 내부의 가스유로(F)를 연다. 이때 냉매가스가 피스톤(3)의 가스유로(F)를 통해 실린더(2)의 압축공간(P) 내부로 흡입된다. In this process, as shown in FIG. 3, when the piston 3 moves in the bottom dead center direction, the discharge valve 5 contacts the end of the cylinder 2 to block the compression space P and at the same time engages the piston 3. A part of the intake valve 4 is bent by the pressure difference, and the gas flow path F inside the piston 3 is opened. At this time, the refrigerant gas is sucked into the compression space P of the cylinder 2 through the gas flow path F of the piston 3.
이후, 피스톤(3)이 하사점에서 상사점으로 이동하면 압축공간(P)과 가스유로(F)의 압력차와 흡입밸브(4)의 자체 탄성력에 의해 휘어졌던 흡입밸브(4)가 펴지면서 피스톤(3)의 가스유로(F)를 막고 이와 동시에 실린더(2)의 압축공간(P)으로 흡입된 냉매가스를 압축한다. 이어 피스톤(3)이 상사점에 거의 도달하면 토출밸브(5)가 열리면서 압축된 냉매가스를 토출한다. 이와 같은 과정이 반복되면서 냉매가스를 지속적으로 압축하는 것이었다.Subsequently, when the piston 3 moves from the bottom dead center to the top dead center, the suction valve 4 which is bent due to the pressure difference between the compression space P and the gas flow path F and the self-elasticity of the suction valve 4 is opened. The gas flow path F of the piston 3 is blocked, and at the same time, the refrigerant gas sucked into the compression space P of the cylinder 2 is compressed. Then, when the piston 3 almost reaches the top dead center, the discharge valve 5 is opened to discharge the compressed refrigerant gas. As this process was repeated, the refrigerant gas was continuously compressed.
그러나 상기한 바와 같은 종래 왕복동식 압축기의 압축기구부는, 피스톤(3)의 왕복 운동에 의한 실린더 압축공간(P)의 압력 차에 의해 흡입밸브(4)가 휘어짐과 펴짐을 반복하면서 가스유로(F)를 개폐하는 과정에서 흡입밸브(4)가 피스톤(3)의 밸브접촉면(S)에 밀착하여 잘 열리지 않아 압축공간(P)으로 유입되는 냉매가스의 흡입량이 저하되거나 또는 흡입밸브(4)가 열릴 때 고정부(4a)와 개폐부(4b) 사이가 꺾이면서 피로누적이 증가하여 쉽게 파손될 우려가 있었다.However, the compression mechanism of the conventional reciprocating compressor as described above, the gas flow path (F) while repeating the bending and unfolding of the intake valve (4) by the pressure difference of the cylinder compression space (P) by the reciprocating motion of the piston (3) In the process of opening and closing the suction valve 4 is in close contact with the valve contact surface (S) of the piston (3) does not open well, the suction amount of the refrigerant gas flowing into the compression space (P) is reduced or the suction valve (4) There was a fear that the accumulation of fatigue increased as the gap between the fixing portion 4a and the opening / closing portion 4b increased, leading to easy breakage.
본 발명은 상기한 바와 같은 종래 압축기의 압축기구부가 가지는 문제점을 감안하여 안출한 것으로, 흡입밸브를 피스톤의 밸브접촉면에서 신속하게 착탈되어 냉매가스의 흡입량을 높이는 것은 물론 흡입밸브의 피로누적을 줄여 파손되는 것을 방지할 수 있는 왕복동식 압축기의 흡입밸브 조립체를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the compression mechanism of the conventional compressor as described above, the suction valve is quickly detached from the valve contact surface of the piston to increase the suction amount of the refrigerant gas, as well as to reduce the fatigue accumulation of the suction valve damage It is an object of the present invention to provide a suction valve assembly of a reciprocating compressor which can be prevented from becoming.
본 발명의 목적을 달성하기 위하여, 소정의 길이와 직경을 갖는 몸통부에 가스가 통과하는 가스유로를 관통 형성하여 실린더에서 직선 왕복운동을 할 수 있도록 삽입하는 피스톤과, 피스톤의 선단면에 고정하는 고정부 및 이 고정부에 연결하여 피스톤의 가스유로를 통과하는 가스에 의해 젖혀졌다가 펴지면서 상기한 피스톤의 선단면을 개폐하는 개폐부를 구비한 밸브판재로 된 왕복동식 압축기의 흡입밸브 조립체에 있어서, 피스톤의 선단면 중에서 가스유로의 출구단 맞은편에 상기 밸브판재와 소정의 간격을 가지도록 여유경사면을 형성하는 것을 특징으로 하는 왕복동식 압축기의 흡입밸브 조립체를 제공한다.In order to achieve the object of the present invention, a piston for penetrating the gas passage through which the gas passes through the body portion having a predetermined length and diameter to insert a linear reciprocating motion in the cylinder, and fixed to the front end surface of the piston In the intake valve assembly of the reciprocating compressor of the valve plate member having a fixed portion and a valve plate connected to the fixed portion and opened and closed by the gas passing through the gas flow path of the piston to open and close the front end surface of the piston. It provides a suction valve assembly of the reciprocating compressor, characterized in that the inclined surface is formed to have a predetermined interval with the valve plate material opposite the outlet end of the gas flow passage in the front end surface of the piston.
이하, 본 발명에 의한 왕복동식 압축기의 흡입밸브 조립체를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명하면 다음과 같다.Hereinafter, the intake valve assembly of the reciprocating compressor according to the present invention will be described in detail based on an embodiment shown in the accompanying drawings.
도 4는 본 발명 왕복동식 압축기의 압축기구부를 보인 단면도이고, 도 5는 본 발명 왕복동식 압축기의 압축기구부를 분해하여 보인 사시도이며, 도 6은 본 발명 왕복동식 압축기에서 피스톤의 선단면을 보인 정면도이고, 도 7은 본 발명 왕복동식 압축기의 압축기구부에 대한 작동상태를 보인 단면도이다.Figure 4 is a cross-sectional view showing a compression mechanism of the reciprocating compressor of the present invention, Figure 5 is a perspective view showing an exploded compression mechanism of the reciprocating compressor of the present invention, Figure 6 is a front view showing the front end surface of the piston in the reciprocating compressor of the present invention. 7 is a cross-sectional view showing an operating state of the compression mechanism of the reciprocating compressor of the present invention.
이에 도시한 바와 같이 왕복동식 압축기의 압축기구부는, 내부에 압축공간(P)을 이루는 관통구멍(2a)을 형성하여 프레임(1)에 삽입 고정하는 실린더(2)와, 전동기구부에 결합하여 실린더(2)의 관통구멍(2a)에 직선 운동 가능하도록 삽입하는 피스톤(10)과, 피스톤(10)의 단부에 결합하여 그 피스톤(10)에 관통 형성한 가스유로(F)를 개폐하는 흡입밸브(20)와, 실린더(1)의 단부에 결합하여 관통구멍(2a)을 복개하는 토출밸브(5)와, 토출밸브(5)를 탄력 지지하는 밸브스프링(6)과, 토출밸브(5)와 밸브스프링(6)을 수용하여 프레임(1)에 고정하는 토출커버(7)를 포함한다.As shown in the drawing, the compression mechanism of the reciprocating compressor includes a cylinder 2 for forming a through-hole 2a constituting a compression space P therein and inserted into and fixed to the frame 1, and a cylinder coupled to the electric mechanism. A piston 10 inserted into the through hole 2a of the through hole 2a so as to be linearly movable, and a suction valve which opens and closes the gas flow path F formed through the piston 10 by coupling to the end of the piston 10. (20), a discharge valve (5) coupled to the end of the cylinder (1) to cover the through hole (2a), a valve spring (6) for elastically supporting the discharge valve (5), and a discharge valve (5). And a discharge cover 7 which receives the valve spring 6 and fixes it to the frame 1.
피스톤(10)은 소정 길이의 환봉체 형상을 갖는 몸통부(11)의 일 측에는 헤드부(12)를 형성하고, 몸통부(11)의 타 측에는 전동기구부와 연결하는 연결부(미도시)를 형성하며, 피스톤(10)을 통과하여 냉매가스가 유동할 수 있도록 가스유로(F)를 관통 형성한다.The piston 10 forms a head portion 12 on one side of the body portion 11 having an annular rod shape having a predetermined length, and a connecting portion (not shown) that connects to the power mechanism portion on the other side of the body portion 11. And, through the piston 10 is formed through the gas flow path (F) so that the refrigerant gas flows.
가스유로(F)는 몸통부(11)의 가운데 소정의 깊이를 갖도록 형성하는 제1 가스통로(13) 및 그 제1 가스통로(13)와 연통하도록 헤드부(12)를 관통 형성하는 제2 가스통로(14)로 이루어진다.The gas flow path F has a first gas passage 13 formed to have a predetermined depth among the trunk portions 11, and a second passage formed through the head portion 12 so as to communicate with the first gas passage 13. It consists of a gas passage 14.
또, 피스톤(10)의 헤드부(12) 끝면은 평면으로 밸브접촉면(S)을 형성하고, 그 밸브접촉면(S)의 중앙에는 상기한 흡입밸브(20)를 체결볼트(B)로 고정하기 위한 체결홈(15)을 일정 깊이로 형성한다.In addition, the end face of the head portion 12 of the piston 10 forms a valve contact surface S in a plane, and in the center of the valve contact surface S to fix the suction valve 20 with a fastening bolt B. Forming the fastening groove 15 for a predetermined depth.
또, 밸브접촉면(S)중에서 상기한 제2 가스통로(14)의 맞은편, 즉 후술할 흡입밸브(20)의 고정부(21)와 개폐부(22)가 연결되는 부위가 접하는 쪽에는 흡입밸브(20)가 닫혔을 때 그 흡입밸브(20)와 소정의 간격을 가지도록 여유경사면(16)을 형성한다.In addition, the suction valve is located on the side of the valve contact surface S opposite to the second gas passage 14, that is, the portion where the fixing portion 21 and the opening / closing portion 22 of the suction valve 20 to be described later are in contact with each other. When the 20 is closed, the inclined surface 16 is formed to have a predetermined distance from the intake valve 20.
여유경사면(16)은 도 5에서와 같이 체결홈(15)의 중심을 지나는 수평선을 기준으로 하단에서 대략 1/2 높이의 반달모양으로 형성하는 것이 바람직하다.The clearance inclined surface 16 is preferably formed in a half moon shape having a height of about 1/2 from the bottom with respect to the horizontal line passing through the center of the fastening groove 15 as shown in FIG.
또, 여유경사면(16)은 흡입밸브(20)의 열림시 동작에 조응하도록 측면투영시 볼록하게 곡면지도록 형성하는 것이 바람직하다.In addition, the clearance inclined surface 16 is preferably formed to be convexly curved during side projection so as to correspond to the operation when the intake valve 20 is opened.
흡입밸브(20)는 피스톤(10)의 밸브접촉면(S)과 상응하도록 얇은 평판인 원형판으로 형성하고, 그 원형판의 중앙부를 절개하여 고정부(21)를 형성하며, 그 고정부(21)에 연결하여 형성하고 원형판의 가장자리에는 양팔 모양의 개폐부(22)를 형성한다.The suction valve 20 is formed of a circular plate having a thin flat plate so as to correspond to the valve contact surface S of the piston 10, and cuts the center portion of the circular plate to form a fixing portion 21, and to the fixing portion 21 It is formed by connecting and the opening and closing portion 22 of the shape of both arms is formed on the edge of the circular plate.
고정부(21)에는 상기한 피스톤(10)의 체결홈(15)에 상응하도록 관통공(23)을 형성하고, 개폐부(22)는 고정부(21)에서 양측으로 벌어지도록 연장하여 폐곡선 모양으로 형성한다.The through hole 23 is formed in the fixing part 21 to correspond to the fastening groove 15 of the piston 10, and the opening and closing part 22 extends so as to open to both sides from the fixing part 21 in a closed curve shape. Form.
도면중 종래와 동일한 부분에 대하여는 동일한 부호를 부여하였다.In the drawings, the same reference numerals are given to the same parts as in the prior art.
도면중 미설명 부호인 8은 가스토출관, D는 토출공간, P는 압축공간이다.In the drawings, reference numeral 8 denotes a gas discharge pipe, D denotes a discharge space, and P denotes a compressed space.
상기와 같은 본 발명 왕복동식 압축기의 흡입밸브 조립체는 다음과 같은 작용 효과가 있다.The suction valve assembly of the reciprocating compressor of the present invention as described above has the following effects.
즉, 피스톤(10)이 하사점 방향으로 이동하면 토출밸브(5)가 실린더(2)의 선단에 밀착되어 압축공간(P)을 밀폐함과 동시에 압력차에 의해 피스톤(10)에 결합한 흡입밸브(20)의 개폐부(22)가 압축공간(P)쪽으로 휘어지면서 제1 가스통로(13)를 열어 그 피스톤(10) 내부의 가스유로(F)를 통해 냉매가스가 실린더(2)의 압축공간(P) 내부로 흡입된다.That is, when the piston 10 moves in the bottom dead center direction, the discharge valve 5 is in close contact with the tip of the cylinder 2 to seal the compression space P and at the same time the suction valve coupled to the piston 10 by the pressure difference. The opening / closing portion 22 of the 20 is bent toward the compression space P to open the first gas passage 13, and the refrigerant gas passes through the gas passage F inside the piston 10. (P) is sucked inside.
여기서, 도 7에서와 같이 흡입밸브(20)가 열릴 때는 개폐부(편의상, '개폐측'이라고 함)(22)가 고정부(21)를 중심으로 젖혀지게 되는데, 이때 고정부(21)가 피스톤(10)의 중심에 고정됨에 따라 흡입밸브(20) 중에서 피스톤(10)의 제2 가스통로(14) 맞은편에 접하는 부위, 즉 고정부(21)와 개폐부(22)가 연결되는 부위(편의상, '지지측'이라고 함)는 열리는 반대방향으로 젖혀지려는 경향이 발생한다. 이를 감안하여 본 실시예에서와 같이 피스톤(10)의 선단면 일측, 보다 정확하게는 제2 가스통로(14)의 맞은편에 여유경사면(16)을 형성하는 경우에는 흡입밸브(20)의 지지측이 개폐측의 젖혀지는 만큼 피스톤(10)의 선단면쪽으로 휘어지면서 개폐측이 신속하게 열릴 수 있도록 하는 것이다.Here, when the suction valve 20 is opened as shown in FIG. 7, the opening / closing part (for convenience, referred to as “opening and closing side”) 22 is turned around the fixing part 21, wherein the fixing part 21 is a piston. As it is fixed to the center of the (10) portion of the intake valve 20 in contact with the second gas passage 14 of the piston 10, that is, the portion where the fixing portion 21 and the opening and closing portion 22 are connected (for convenience) Tend to lean in the opposite direction to open. In view of this, in the case of forming the inclined surface 16 on one side of the front end face of the piston 10, more precisely, on the opposite side of the second gas passage 14 as in this embodiment, the support side of the intake valve 20 is The opening and closing side is to be bent toward the front end surface of the piston 10 as much as the opening and closing side to be opened quickly.
이렇게 하여, 흡입밸브의 열림속도를 높여 냉매가스의 흡입량을 증가시킴으로써 압축기 성능을 향상시킬 수 있을 뿐만 아니라, 흡입밸브의 개폐측이 열리는 만큼 지지측이 반대로 휘어짐에 따라 개폐측과 지지측의 경계부위에 누적되는 피로를 줄여 흡입밸브의 파손을 미연에 방지할 수 있다.In this way, the performance of the compressor can be improved by increasing the opening speed of the suction valve to increase the suction amount of the refrigerant gas, and accumulating on the boundary between the opening and closing side and the supporting side as the supporting side is deflected as much as the opening and closing side of the suction valve is opened. By reducing fatigue, the breakage of the suction valve can be prevented.
본 발명에 의한 왕복동식 압축기의 흡입밸브 조립체는, 흡입밸브의 고정부와 개폐부 사이의 연결부가 접하는 피스톤의 선단면에 여유경사면을 형성함으로써, 흡입밸브의 열림속도를 높여 냉매가스의 흡입량을 증가시키고 이를 통해 압축기 성능을 향상시킬 수 있을 뿐만 아니라 흡입밸브의 흡입밸브의 누적피로를 줄여 수명을 연장할 수 있다.In the suction valve assembly of the reciprocating compressor according to the present invention, by forming an inclined surface on the front end surface of the piston in contact with the connection portion between the fixed portion and the opening and closing portion of the suction valve, the opening speed of the suction valve is increased to increase the suction amount of the refrigerant gas. This not only improves the performance of the compressor, but also reduces the cumulative fatigue of the intake valve of the intake valve and extends its life.
도 1은 종래 왕복동식 압축기의 압축기구부를 보인 단면도,1 is a cross-sectional view showing a compression mechanism of the conventional reciprocating compressor;
도 2는 종래 왕복동식 압축기의 압축기구부를 분해하여 보인 사시도,2 is a perspective view showing an exploded compression mechanism of the conventional reciprocating compressor;
도 3은 종래 왕복동식 압축기의 압축기구부에 대한 작동상태를 보인 단면도,3 is a cross-sectional view showing an operating state of the compression mechanism of the conventional reciprocating compressor;
도 4는 본 발명 왕복동식 압축기의 압축기구부를 보인 단면도,4 is a cross-sectional view showing a compression mechanism of the present invention reciprocating compressor;
도 5는 본 발명 왕복동식 압축기의 압축기구부를 분해하여 보인 사시도,5 is an exploded perspective view of the compression mechanism of the present invention reciprocating compressor;
도 6은 본 발명 왕복동식 압축기에서 피스톤의 선단면을 보인 정면도,6 is a front view showing the front end surface of the piston in the reciprocating compressor of the present invention,
도 7은 본 발명 왕복동식 압축기의 압축기구부에 대한 작동상태를 보인 단면도.7 is a cross-sectional view showing an operating state of the compression mechanism of the present invention reciprocating compressor.
** 도면의 주요부분에 대한 부호의 설명 **** Explanation of symbols for main parts of drawings **
2 : 실린더 10 : 피스톤2: cylinder 10: piston
13,14 : 제1,제2 가스통로 15 : 체결홈13,14: first and second gas passage 15: fastening groove
16 : 여유경사면 20 : 흡입밸브16: clearance slope 20: suction valve
21 : 고정부 22 : 개폐부21: fixing part 22: opening and closing part
23 : 관통공23: through hole
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0092667A KR100531827B1 (en) | 2003-12-17 | 2003-12-17 | Suction valve assembly for reciprocating compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0092667A KR100531827B1 (en) | 2003-12-17 | 2003-12-17 | Suction valve assembly for reciprocating compressor |
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| KR20050060930A KR20050060930A (en) | 2005-06-22 |
| KR100531827B1 true KR100531827B1 (en) | 2005-12-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514172U (en) * | 1978-07-12 | 1980-01-29 | ||
| KR20010064573A (en) * | 1999-12-29 | 2001-07-09 | 구자홍 | Structure for engaging valve linear compressor |
| KR20040078520A (en) * | 2003-03-04 | 2004-09-10 | 엘지전자 주식회사 | Apparatus of suction valve for liner compressor |
| KR20040088142A (en) * | 2003-04-09 | 2004-10-16 | 엘지전자 주식회사 | Protective device for suction valve in reciprocating compressor |
| KR20050017249A (en) * | 2003-08-11 | 2005-02-22 | 엘지전자 주식회사 | Suction valve assembly for reciprocating compressor |
-
2003
- 2003-12-17 KR KR10-2003-0092667A patent/KR100531827B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514172U (en) * | 1978-07-12 | 1980-01-29 | ||
| KR20010064573A (en) * | 1999-12-29 | 2001-07-09 | 구자홍 | Structure for engaging valve linear compressor |
| KR20040078520A (en) * | 2003-03-04 | 2004-09-10 | 엘지전자 주식회사 | Apparatus of suction valve for liner compressor |
| KR20040088142A (en) * | 2003-04-09 | 2004-10-16 | 엘지전자 주식회사 | Protective device for suction valve in reciprocating compressor |
| KR20050017249A (en) * | 2003-08-11 | 2005-02-22 | 엘지전자 주식회사 | Suction valve assembly for reciprocating compressor |
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