KR20050017240A - Suction valve open/close control device for reciprocating compressor - Google Patents

Suction valve open/close control device for reciprocating compressor

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Publication number
KR20050017240A
KR20050017240A KR1020030055510A KR20030055510A KR20050017240A KR 20050017240 A KR20050017240 A KR 20050017240A KR 1020030055510 A KR1020030055510 A KR 1020030055510A KR 20030055510 A KR20030055510 A KR 20030055510A KR 20050017240 A KR20050017240 A KR 20050017240A
Authority
KR
South Korea
Prior art keywords
piston
suction valve
opening
reciprocating compressor
valve
Prior art date
Application number
KR1020030055510A
Other languages
Korean (ko)
Inventor
송계영
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020030055510A priority Critical patent/KR20050017240A/en
Publication of KR20050017240A publication Critical patent/KR20050017240A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/0005Component 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
    • F04B39/0016Component 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/0027Pulsation and noise damping means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1066Valve plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1073Adaptations or arrangements of distribution members the members being reed valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston 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
    • F04B35/04Piston 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

PURPOSE: An opening and closing regulating device of a suction valve for a reciprocating compressor is provided to suck refrigerant gas actively by opening the suction valve promptly, and to reduce collision noise between the suction valve and the piston by inserting a spacer between the end of the piston and the suction valve. CONSTITUTION: A suction valve opening and closing device is composed of a piston(110) having a gas passage for flowing gas in a body and linearly reciprocating in a cylinder, a suction valve(120) composed of an opening part(122) shutting off the gas passage of the piston and a fixing part(121) fastened to the end of the piston, and a spacer(130) inserted between the end of the piston and the suction valve to finely space the suction valve from the end of the piston. The spacer is formed of a disk type, and integrally protruded in the end of the piston.

Description

왕복동식 압축기의 흡입밸브 개폐 조절 장치{SUCTION VALVE OPEN/CLOSE CONTROL DEVICE FOR RECIPROCATING COMPRESSOR} Suction valve opening and closing device of reciprocating compressor {SUCTION VALVE OPEN / CLOSE CONTROL DEVICE FOR RECIPROCATING COMPRESSOR}

본 발명은 왕복동식 압축기의 흡입밸브 개폐 조절 장치에 관한 것으로, 특히 피스톤의 선단면에 장착하여 냉매가스의 흡입을 제한하는 흡입밸브의 열림속도를 높이면서도 밸브타음을 줄일 수 있는 왕복동식 압축기의 흡입밸브 개폐 조절 장치에 관한 것이다.The present invention relates to a suction valve opening and closing control device of the reciprocating compressor, in particular, the suction of the reciprocating compressor that can be mounted on the front end surface of the piston to reduce the valve sound while increasing the opening speed of the suction valve restricting the suction of refrigerant gas It relates to a valve opening and closing control device.

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 것으로, 이에 도시한 바와 같이 종래 왕복동식 압축기의 압축기구부는 내부에 압축공간을 이루는 관통구멍(11)을 형성한 실린더(10)와 실린더(10)의 관통구멍(11)에 직선 운동 가능하도록 삽입하는 피스톤(20)과 실린더(10)의 단부에 결합하여 관통구멍(11)을 복개하는 토출밸브조립체(30)를 포함하고 있다.1 and 2 illustrate an example of a compression mechanism of a conventional reciprocating compressor. As shown in FIG. 1, the compression mechanism of the conventional reciprocating compressor includes a cylinder having a through hole 11 constituting a compression space therein. 10) and a piston (20) inserted into the through hole (11) of the cylinder (10) for linear movement, and a discharge valve assembly (30) coupled to the end of the cylinder (10) to cover the through hole (11). Doing.

피스톤(20)은 소정 길이의 환봉체 형상을 갖는 몸통부(21)의 일 측에 헤드부(22)를 형성하고 몸통부(21)의 타 측에 전동기구부와 연결하는 연결부(미도시)를 형성하고 있다. 그리고 피스톤(20)을 통과하여 냉매가스가 유동할 수 있도록 가스유로(F)를 관통 형성하되 그 가스유로(F)는 몸통부(21)의 가운데 소정의 깊이를 갖도록 형성하는 제1 가스통로(23)와 그 제1 가스통로(23)와 연통하도록 헤드부(22)내에 관통 형성하는 제2 가스통로(24)로 이루어져 있다. The piston 20 forms a head portion 22 on one side of the body portion 21 having a round rod shape having a predetermined length, and connects a connecting portion (not shown) that connects to the power mechanism portion on the other side of the body portion 21. Forming. In addition, the gas passage F may be formed to pass through the piston 20 so that the refrigerant gas may flow, but the gas passage F may be formed to have a predetermined depth among the body portions 21. 23 and a second gas passage 24 formed through the head portion 22 so as to communicate with the first gas passage 23.

또, 헤드부(22)의 선단면은 평면으로 밸브접촉면(S)을 이루고 그 밸브접촉면(S)의 중앙부위에는 제2 가스통로(24)를 개폐하는 흡입밸브(40)를 체결볼트(50)로 결합하기 위한 체결홈(25)을 형성하고 있다.In addition, the front end face of the head portion 22 forms a valve contact surface S in a plane, and a fastening bolt 50 fastens the suction valve 40 to open and close the second gas passage 24 at a central portion of the valve contact surface S. Fastening groove 25 for coupling to form a.

흡입밸브(40)는 도 2에 도시한 바와 같이, 피스톤(20)의 밸브접촉면(S)과 상응하도록 얇은 평판인 원형판으로 형성하고, 그 원형판의 중앙부를 절개하여 고정부(41)를 형성하며, 그 고정부(41)에 연결하여 원형판의 가장자리에는 양팔 모양의 개폐부(42)를 형성하고 있다.As shown in FIG. 2, the intake valve 40 is formed of a circular plate having a thin plate so as to correspond to the valve contact surface S of the piston 20, and cuts the center portion of the circular plate to form the fixing portion 41. It connects to the fixing part 41, and the opening-and-closing part 42 of both arms shape is formed in the edge of a circular plate.

고정부(41)에는 상기한 피스톤(20)의 체결홈(25)에 상응하도록 관통공(43)을 관통 형성하고, 개폐부(42)는 피스톤(20)의 제2 가스통로(24)를 개폐할 수 있도록 형성하고 있다.The fixing part 41 penetrates the through hole 43 so as to correspond to the fastening groove 25 of the piston 20, and the opening and closing part 42 opens and closes the second gas passage 24 of the piston 20. It is formed to be possible.

토출밸브조립체(30)는 실린더(10)의 단부를 복개하도록 결합하는 토출커버(31)와 그 토출커버(31)의 내부에 삽입하여 실린더(10)의 관통구멍(11)과 피스톤(20) 사이의 압축공간(P)을 개폐하는 토출밸브(32)와 그 토출밸브(32)를 탄성적으로 지지하는 밸브스프링(33)으로 이루어져 있다.The discharge valve assembly 30 is inserted into the discharge cover 31 for coupling the end of the cylinder 10 to the inside of the discharge cover 31 and the through-hole 11 and the piston 20 of the cylinder 10. A discharge valve 32 for opening and closing the compression space P therebetween and a valve spring 33 for elastically supporting the discharge valve 32.

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(20)이 전동기구부의 구동력을 전달받아 실린더(10)의 관통구멍(11) 내부에서 직선으로 왕복운동을 한다. That is, the piston 20 receives the driving force of the electric mechanism unit to reciprocate linearly in the through hole 11 of the cylinder 10.

이 과정에서 도 3에서와 같이, 피스톤(20)이 하사점 방향으로 이동하면 토출밸브(32)는 실린더(10)의 단부에 접촉하여 압축공간(P)을 막고 이와 동시에 피스톤(20)에 결합한 흡입밸브(40)의 일부분이 압력차에 의해 휘어지면서 피스톤(20) 내부의 가스유로(F)를 연다. 이때 냉매가스가 피스톤의 가스유로(F)를 통해 실린더(10)의 압축공간(P) 내부로 흡입된다. In this process, as shown in FIG. 3, when the piston 20 moves in the bottom dead center direction, the discharge valve 32 contacts the end of the cylinder 10 to block the compression space P, and at the same time is coupled to the piston 20. A part of the suction valve 40 is bent by the pressure difference to open the gas flow path F inside the piston 20. At this time, the refrigerant gas is sucked into the compression space P of the cylinder 10 through the gas flow path F of the piston.

이후, 피스톤(20)이 하사점에서 상사점으로 이동하면 압축공간(P)과 흡입공간의 압력차와 흡입밸브(40)의 자체 탄성력에 의해 휘어졌던 흡입밸브(40)가 펴지면서 피스톤(20)의 가스유로(F)를 막고 이와 동시에 실린더(10)의 압축공간(P)으로 흡입된 냉매가스를 압축한다. 이어 피스톤(20)이 상사점에 거의 도달하면 토출밸브(32)가 열리면서 압축된 냉매가스를 토출한다. 이와 같은 과정이 반복되면서 냉매가스를 지속적으로 압축하는 것이었다.Subsequently, when the piston 20 moves from the bottom dead center to the top dead center, the piston 20 is unfolded while the suction valve 40 which is bent by the pressure difference between the compression space P and the suction space and the elastic force of the suction valve 40 is unfolded. The gas flow path (F) of the) is blocked and at the same time the refrigerant gas sucked into the compression space (P) of the cylinder 10 is compressed. Subsequently, when the piston 20 reaches almost the top dead center, the discharge valve 32 opens 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(20)의 왕복 운동에 의한 실린더 압축공간(P)의 압력 차에 의해 흡입밸브(40)가 휘어짐과 펴짐을 반복하면서 가스유로(F)를 개폐하는 과정에서 흡입밸브(40)가 피스톤(20)의 밸브접촉면(S)에 밀착하여 잘 열리지 않아 냉매가스의 흡입량이 저하되거나 또는 피스톤(20)과의 충돌소음이 가중되는 문제점이 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 suction valve 40 due to the pressure difference of the cylinder compression space (P) by the reciprocating motion of the piston 20 In the process of opening and closing the suction valve 40 is in close contact with the valve contact surface (S) of the piston 20 does not open well, there is a problem that the suction amount of the refrigerant gas is reduced or the collision noise with the piston 20 is increased. .

본 발명은 상기한 바와 같은 종래 압축기의 압축기구부가 가지는 문제점을 감안하여 안출한 것으로, 흡입밸브를 피스톤의 밸브접촉면에서 신속하게 착탈되면서 닫힐 때 충돌소음도 줄일 수 있는 왕복동식 압축기의 흡입밸브 개폐 조절장치를 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 opening and closing adjustment device of the reciprocating compressor that can reduce the collision noise when the intake valve is quickly detached from the valve contact surface of the piston It is an object of the present invention to provide.

본 발명의 목적을 달성하기 위하여, 소정의 길이를 갖는 몸통부의 내부에 가스가 유동하는 가스유로를 관통 형성하여 실린더의 내부에 직선으로 왕복운동 가능하게 삽입하는 피스톤과, 피스톤의 가스유로를 차단하기 위한 개폐부 및 이 개폐부에 연결하여 상기한 피스톤의 선단면에 고정하기 위한 고정부를 형성하는 흡입밸브와, 피스톤의 선단면과 흡입밸브의 사이에 개재하여 상기 흡입밸브가 피스톤의 선단면에 미세하게 이격되도록 하는 스페이서부를 포함한 왕복동식 압축기의 흡입밸브 개폐 조절장치를 제공한다.In order to achieve the object of the present invention, to form a gas passage through which a gas flows inside the body portion having a predetermined length to insert a piston reciprocating linearly inside the cylinder, and to block the gas flow path of the piston A suction valve which is connected to the opening and closing portion and the opening portion to form a fixing portion for fixing to the front end surface of the piston, and the suction valve is minutely interposed between the front end surface of the piston and the suction valve. Provided is a suction valve opening and closing control device of a reciprocating compressor including a spacer to be spaced apart.

이하, 본 발명에 의한 왕복동식 압축기의 흡입밸브 개폐 조절장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명하면 다음과 같다.Hereinafter, the intake valve opening and closing control device of the reciprocating compressor according to the present invention will be described in detail based on the 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 6 및 도 7은 본 발명 왕복동식 압축기의 압축기구부에 대한 작동상태를 보인 단면도이고, 도 8 및 도 도 9는 본 발명 왕복동식 압축기의 압축기구부에 대한 각 변형예의 결합상태를 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, Figures 6 and 7 for the compression mechanism of the reciprocating compressor of the present invention 8 and 9 are cross-sectional views showing the coupling state of each modification to the compression mechanism of the reciprocating compressor of the present invention.

이에 도시한 바와 같이 왕복동식 압축기의 압축기구부는, 내부에 압축공간(P)을 이루는 관통구멍(11)을 형성한 실린더(10)와, 전동기구부에 결합하여 실린더(10)의 관통구멍(11)에 직선 운동 가능하도록 삽입하는 피스톤(110)과, 피스톤(110)의 단부에 결합하여 그 피스톤(110)에 관통 형성한 가스유로(F)를 개폐하는 흡입밸브(120)와, 피스톤(110)의 선단면과 흡입밸브(120) 사이에 개재하여 상기 흡입밸브(120)를 피스톤(110)의 선단면에서 일정 정도 이격시키는 스페이서(130)와, 실린더(10)의 관통구멍(11)을 복개하도록 그 실린더(10)의 선단에 결합하는 토출밸브조립체(30)를 포함한다.As shown in the drawing, the compression mechanism of the reciprocating compressor includes a cylinder 10 having a through hole 11 constituting a compression space P therein, and a through hole 11 of the cylinder 10 coupled to the electric mechanism. Piston 110 is inserted into the linear motion so that the linear movement, the suction valve 120 for opening and closing the gas flow path (F) formed through the piston 110 is coupled to the end of the piston 110, the piston 110 The spacer 130 and the through-hole 11 of the cylinder 10, which are spaced apart from the front end surface of the piston 110 by a distance between the front end surface of the piston 110 and the suction valve 120. A discharge valve assembly 30 is coupled to the tip of the cylinder 10 so as to be covered.

피스톤(110)은 소정 길이의 환봉체 형상을 갖는 몸통부(111)의 일 측에는 헤드부(112)를 형성하고, 몸통부(111)의 타 측에는 전동기구부와 연결하는 연결부(미도시)를 형성하며, 피스톤(110)을 통과하여 냉매가스가 유동할 수 있도록 가스유로(F)를 관통 형성한다. 가스유로(F)는 몸통부(111)의 가운데 소정의 깊이를 갖도록 형성하는 제1 가스통로(113) 및 그 제1 가스통로(113)와 연통하도록 헤드부(112)를 관통 형성하는 제2 가스통로(114)로 이루어진다. 그리고 피스톤의 헤드부(112) 끝면은 평면으로 밸브접촉면(S)을 형성하고, 그 밸브접촉면(S)의 중앙에는 상기한 흡입밸브(120)를 체결볼트(50)로 고정하기 위한 체결홈(115)을 일정 깊이로 형성한다.The piston 110 forms a head portion 112 on one side of the body portion 111 having an annular rod shape having a predetermined length, and forms a connection portion (not shown) that connects to the power mechanism portion on the other side of the body portion 111. The gas flow path F is formed to pass through the piston 110 to allow the refrigerant gas to flow therethrough. The gas flow path F has a first gas passage 113 formed to have a predetermined depth among the body portions 111 and a second passage formed through the head portion 112 so as to communicate with the first gas passage 113. It consists of a gas passage 114. And the end surface of the head portion 112 of the piston forms a valve contact surface (S) in the plane, the fastening groove for fixing the intake valve 120 with a fastening bolt 50 in the center of the valve contact surface (S) ( 115) to a certain depth.

흡입밸브(120)는 도 5에 도시한 바와 같이, 피스톤(110)의 밸브접촉면(S)과 상응하도록 얇은 평판인 원형판으로 형성하고, 그 원형판의 중앙부를 절개하여 고정부(121)를 형성하며, 그 고정부(121)에 연결하여 형성하고 원형판의 가장자리에는 양팔 모양의 개폐부(122)를 형성한다. 고정부(121)에는 상기한 피스톤(110)의 체결홈(115)에 상응하도록 관통공(123)을 형성하고, 개폐부(122)는 피스톤(110)의 제2 가스통로(114)를 개폐할 수 있도록 형성한다.As shown in FIG. 5, the intake valve 120 is formed of a circular plate having a thin flat plate so as to correspond to the valve contact surface S of the piston 110, and the center portion of the circular plate is cut to form the fixing part 121. It is formed by connecting to the fixing portion 121, and the opening and closing portion 122 of both arms is formed on the edge of the circular plate. The fixing part 121 forms a through hole 123 to correspond to the fastening groove 115 of the piston 110, and the opening and closing part 122 opens and closes the second gas passage 114 of the piston 110. Form to help.

스페이서(130)는 도 4 및 도 5에서와 같이 흡입밸브(120)와 동일한 재질로 형성하되 그 크기는 피스톤(110)의 제2 가스통로(114)는 물론 흡입밸브(120)의 개폐부(122)와 중첩되지 않는 범위 내에서 대체로 원판 모양으로 형성한다. 또, 스페이서(130)는 흡입밸브(120)의 개폐부(122)가 원활하게 닫힐 수 있도록 대체로 0.1mm 내외의 두께(t)로 형성하는 것이 바람직하다.Spacer 130 is formed of the same material as the intake valve 120, as shown in Figures 4 and 5, the size of the second gas passage 114 of the piston 110, as well as the opening and closing portion 122 of the intake valve 120 It is generally formed in the shape of a disc within the range that does not overlap with). In addition, the spacer 130 is preferably formed to a thickness (t) of approximately 0.1mm so that the opening and closing portion 122 of the suction valve 120 can be closed smoothly.

한편, 도 8에서와 같이 피스톤(110)의 밸브접촉면(S) 중앙, 즉 체결홈(115)을 수용하는 위치에 소정의 높이(대략 0.1mm내외)로 상기한 스페이서(116)를 돌출 형성할 수도 있고, 도 9에서와 같이 흡입밸브(120)의 고정부(121)를 피스톤 방향으로 소정의 깊이(대략 0.1mm)만큼 눌러 융기하도록 상기한 스페이서(124)를 돌출 형성할 수도 있다. 이 경우 스페이서(124)의 중앙에 볼트체결을 위한 관통공(123)을 형성함에 따라 상기한 스페이서(124)는 그 내부에 체결볼트(50)의 머리부(미부호)를 삽입할 수 있는 정도의 넓이로 형성하는 것이 바람직하다.Meanwhile, as shown in FIG. 8, the spacer 116 may be formed to protrude from the center of the valve contact surface S of the piston 110, that is, at a position accommodating the fastening groove 115 at a predetermined height (about 0.1 mm). Alternatively, as shown in FIG. 9, the spacer 124 may be protruded so as to be raised by pressing the fixing part 121 of the suction valve 120 by a predetermined depth (approximately 0.1 mm) in the piston direction. In this case, as the through-hole 123 for fastening the bolt is formed in the center of the spacer 124, the spacer 124 can insert the head (unsigned) of the fastening bolt 50 therein. It is preferable to form in the area of.

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 31은 토출커버, 32는 토출밸브, 33은 밸브스프링이다.In the drawings, reference numeral 31 denotes a discharge cover, 32 a discharge valve, and 33 a valve spring.

상기와 같은 본 발명 왕복동식 압축기의 흡입밸브 개폐 조절장치는 다음과 같은 작용 효과가 있다.The suction valve opening and closing control device of the reciprocating compressor of the present invention as described above has the following effects.

즉, 도 6에 도시한 바와 같이 피스톤(110)이 하사점 방향으로 이동하면 토출밸브(32)가 실린더(10)의 선단에 밀착되어 압축공간(P)을 밀폐하게 됨과 동시에 압력차에 의해 피스톤(110)에 결합한 흡입밸브(120)의 개폐부(122)가 압축공간(P)쪽으로 휘어지면서 제1 가스통로(113)를 열어 그 피스톤(110) 내부의 가스유로(F)를 통해 냉매가스가 실린더(10)의 압축공간(P) 내부로 흡입된다. That is, as shown in Figure 6, when the piston 110 moves in the bottom dead center direction, the discharge valve 32 is in close contact with the tip of the cylinder 10 to seal the compression space (P) and at the same time the piston by the pressure difference Opening and closing portion 122 of the suction valve 120 coupled to 110 is bent toward the compression space (P) to open the first gas passage 113, the refrigerant gas through the gas passage (F) inside the piston 110 It is sucked into the compression space P of the cylinder 10.

이때, 흡입밸브(120)의 고정부(121)와 피스톤(110)의 밸브접촉면(S) 사이에는 소정의 높이를 가지는 스페이서(130)를 후조립으로 개재하거나 또는 피스톤(110)이나 흡입밸브(120)에 상기한 스페이서(116)(124)를 돌출 형성하여 개재함에 따라 흡입밸브(120)의 개폐부(122)가 피스톤(110)의 밸브접촉면(S)에 약간 비스듬하게 닫히게 되고, 이로 인해 흡입밸브(120)의 개폐부(122)가 닫힌 상태에서 일정정도 탄성을 보유하였다가 탄력적으로 열리게 됨에 따라 피스톤(110)의 흡입행정시 상기한 흡입밸브(120)가 신속하게 열리면서 냉매가스를 원활하게 흡입할 수 있는 것이다.At this time, the spacer 130 having a predetermined height is interposed between the fixing part 121 of the suction valve 120 and the valve contact surface S of the piston 110 by post-assembly or the piston 110 or the suction valve ( As the spacers 116 and 124 are formed to protrude from 120, the opening and closing portion 122 of the suction valve 120 is closed at an angle to the valve contact surface S of the piston 110 at an angle, thereby causing suction. As the opening / closing part 122 of the valve 120 is held in a closed state and is elastically opened, the suction valve 120 is quickly opened during the suction stroke of the piston 110 to smoothly suck the refrigerant gas. You can do it.

반면, 도 7에서와 같이 피스톤(110)이 하사점에 도달한 후 하사점에서 상사점으로 이동하면 압력차에 의해 흡입밸브(120)의 개폐부(122)가 펴지면서 피스톤(110)의 밸브접촉면(S)에 접촉하여 가스유로(F)를 막게 되고, 이와 동시에 실린더(10)의 압축공간(P)내에 흡입된 냉매가스를 압축하면서 상사점에 이르면 토출밸브(32)를 열고 압축된 냉매가스를 토출한다.On the other hand, as shown in FIG. 7 when the piston 110 reaches the bottom dead center and moves from the bottom dead center to the top dead center, the valve contact surface of the piston 110 is opened while the opening / closing part 122 of the suction valve 120 is opened by the pressure difference. The gas flow path F is blocked by contacting (S), and at the same time, when the refrigerant gas sucked in the compression space P of the cylinder 10 reaches the top dead center, the discharge valve 32 is opened to compress the refrigerant gas. To discharge.

이때, 흡입밸브(120)의 고정부(121)와 피스톤(110)의 밸브접촉면(S) 사이에는 소정의 높이를 가지는 스페이서(130)를 후조립으로 개재하거나 또는 피스톤(110)이나 흡입밸브(120)에 상기한 스페이서(116)(124)를 돌출 형성하여 개재함에 따라 흡입밸브(120)의 개폐부(122)가 닫힐 때 완전히 펴졌다가 다시 반대쪽으로 휘면서 닫히게 되고, 이로 인해 흡입밸브(120)는 최대 탄성을 지나 피스톤(110)의 밸브접촉면(S)에 부딪힘에 따라 밸브타음을 낮춰 압축기 소음을 효과적으로 줄일 수 있는 것이다.At this time, the spacer 130 having a predetermined height is interposed between the fixing part 121 of the suction valve 120 and the valve contact surface S of the piston 110 by post-assembly or the piston 110 or the suction valve ( As the spacers 116 and 124 are formed to protrude from 120, the opening and closing portion 122 of the intake valve 120 is completely opened when the opening and closing portion 122 of the intake valve 120 is closed, and then is bent to the opposite side and closed. ) Is to effectively reduce the compressor noise by lowering the valve batter as the impact on the valve contact surface (S) of the piston 110 through the maximum elasticity.

본 발명에 의한 왕복동식 압축기의 흡입밸브 개폐 조절장치는, 피스톤의 선단면과 흡입밸브의 사이에 스페이서를 개재하여 상기 흡입밸브가 피스톤의 선단면에 미세하게 이격되도록 함으로써, 흡입밸브가 신속하게 열려 냉매가스를 원활하게 흡입할 수 있을 뿐만 아니라 흡입밸브와 피스톤 사이의 충돌소음을 줄여 압축기 소음을 효과적으로 낮출 수 있다.In the intake valve opening and closing adjustment device of the reciprocating compressor according to the present invention, the intake valve is opened quickly by allowing the intake valve to be minutely spaced apart from the front end surface of the piston through a spacer between the front end surface of the piston and the intake valve. Not only can the refrigerant gas be sucked smoothly, but also the noise of the compressor between the suction valve and the piston can be reduced, effectively reducing the compressor noise.

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 6 및 도 7은 본 발명 왕복동식 압축기의 압축기구부에 대한 작동상태를 보인 단면도,6 and 7 are cross-sectional view showing the operating state of the compression mechanism of the present invention reciprocating compressor,

도 8 및 도 도 9는 본 발명 왕복동식 압축기의 압축기구부에 대한 각 변형예의 결합상태를 보인 단면도.8 and 9 are cross-sectional views showing the coupling state of each modification to the compression mechanism of the reciprocating compressor of the present invention.

** 도면의 주요부분에 대한 부호의 설명 **** Explanation of symbols for main parts of drawings **

10 : 실린더 110 : 피스톤10 cylinder 110 piston

113,114 : 제1,제2 가스통로 115 : 체결홈113,114: first and second gas passage 115: fastening groove

116 : 스페이서 120 : 흡입밸브116: spacer 120: suction valve

121 : 고정부 122 : 개폐부121: fixing part 122: opening and closing part

123 : 관통공 124 : 스페이서123: through hole 124: spacer

130 : 스페이서130: spacer

Claims (4)

소정의 길이를 갖는 몸통부의 내부에 가스가 유동하는 가스유로를 관통 형성하여 실린더의 내부에 직선으로 왕복운동 가능하게 삽입하는 피스톤과,A piston which penetrates a gas flow path through which gas flows inside the body part having a predetermined length and is inserted into the cylinder so as to reciprocate linearly; 피스톤의 가스유로를 차단하기 위한 개폐부 및 이 개폐부에 연결하여 상기한 피스톤의 선단면에 고정하기 위한 고정부를 형성하는 흡입밸브와,An inlet valve for opening and closing the gas flow path of the piston and a fixing part connected to the opening and closing part for fixing to the front end surface of the piston; 피스톤의 선단면과 흡입밸브의 사이에 개재하여 상기 흡입밸브가 피스톤의 선단면에 미세하게 이격되도록 하는 스페이서부를 포함한 왕복동식 압축기의 흡입밸브 개폐 조절장치.An intake valve opening and closing control device for a reciprocating compressor including a spacer part interposed between a front end surface of a piston and a suction valve so that the suction valve is spaced apart from the front end surface of the piston. 제1항에 있어서,The method of claim 1, 스페이서부는 원판모양으로 제작하여 후조립하는 것을 특징으로 하는 왕복동식 압축기의 흡입밸브 개폐 조절장치.Spacer portion of the suction valve opening and closing control device of the reciprocating compressor, characterized in that the disk is produced after assembly. 제1항에 있어서,The method of claim 1, 스페이서부는 피스톤의 선단면에서 돌출하도록 일체로 형성하는 것을 특징으로 하는 왕복동식 압축기의 흡입밸브 개폐 조절장치.Spacer portion inlet valve opening and closing control device of the reciprocating compressor, characterized in that formed integrally to protrude from the front end surface of the piston. 제1항에 있어서,The method of claim 1, 스페이서부는 흡입밸브의 고정부를 피스톤을 향해 돌출하도록 일체로 형성하는 것을 특징으로 하는 왕복동식 압축기의 흡입밸브 개폐 조절장치.Spacer unit inlet valve opening and closing control device of the reciprocating compressor, characterized in that formed integrally so as to project the fixed portion of the suction valve toward the piston.
KR1020030055510A 2003-08-11 2003-08-11 Suction valve open/close control device for reciprocating compressor KR20050017240A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100677291B1 (en) * 2006-01-04 2007-02-02 엘지전자 주식회사 Suction valve for compressor
WO2021001148A1 (en) * 2019-07-01 2021-01-07 Voith Patent Gmbh Valve plate having valve lamellae
EP4080055A1 (en) * 2021-04-22 2022-10-26 Wen-San Chou Air stop sheet of piston of cylinder
EP4080054A1 (en) * 2021-04-22 2022-10-26 Wen-San Chou Air stop sheet of piston of cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100677291B1 (en) * 2006-01-04 2007-02-02 엘지전자 주식회사 Suction valve for compressor
WO2021001148A1 (en) * 2019-07-01 2021-01-07 Voith Patent Gmbh Valve plate having valve lamellae
CN114041024A (en) * 2019-07-01 2022-02-11 福伊特专利有限公司 Valve plate with valve plate
EP4080055A1 (en) * 2021-04-22 2022-10-26 Wen-San Chou Air stop sheet of piston of cylinder
EP4080054A1 (en) * 2021-04-22 2022-10-26 Wen-San Chou Air stop sheet of piston of cylinder

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