KR20150081777A - Four-way valve for switching the fluid flow direction - Google Patents

Four-way valve for switching the fluid flow direction Download PDF

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Publication number
KR20150081777A
KR20150081777A KR1020140001596A KR20140001596A KR20150081777A KR 20150081777 A KR20150081777 A KR 20150081777A KR 1020140001596 A KR1020140001596 A KR 1020140001596A KR 20140001596 A KR20140001596 A KR 20140001596A KR 20150081777 A KR20150081777 A KR 20150081777A
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KR
South Korea
Prior art keywords
hole
way valve
fluid
connection port
port
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KR1020140001596A
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Korean (ko)
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이재본
이은진
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이재본
이은진
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Priority to KR1020140001596A priority Critical patent/KR20150081777A/en
Publication of KR20150081777A publication Critical patent/KR20150081777A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The present invention relates to a four-way valve wherein a through-hole of an operation unit switches a direction of a fluid flow. More specifically, the present invention switches a flowing direction of a fluid coolant in a coolant pipe of a heat pump composed of a circulation device of a high pressure gas coolant to alleviate a problem of an existing four-way valve which is an important component in the heat pump used for cooling and heating, where a fluid is leaked as a plurality of special components are assembled in a complicated method. Two inclined through-holes symmetrically penetrate an operation unit, and a groove where a fluid flow bypasses is processed to enable the operation unit to form one piston to enable the through-hole of the operation unit moving in a cylinder to switch direction of the fluid flow.

Description

작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브{omitted}Way valve in which the operating portion through-hole changes the fluid flow direction;

본 발명의 기술은 유체가 흐르는 2 개의 배관 사이에 4 개의 연결구로 결합된 사방밸브의 기능으로 유체가 흐르는 방향을 전환하는 유체가 흐르는 순환 배관기술이며, 냉매의 순환배관으로 히트펌프 냉방과 난방장치 구성의 중요한 역할을 담당하여 특수기능을 하는 부품인 사방밸브의 제작기술이다.The technique of the present invention is a circulation piping technique in which a fluid for switching the flow direction of a fluid flows through the function of a four-way valve coupled with four connection ports between two pipes through which a fluid flows, and a circulation pipe for the refrigerant, It is the production technology of the four-way valve which plays an important role in the construction and has the special function.

배관의 유체를 제어하는 밸브는 양방향의 스톱밸브와 일방향 유체를 다 방향으로 보내는 3 방 4 방 5 방 등 여러 종류 밸브 중에서, 본 발명은 2방향의 유체를 정방향과 역방향으로 전환하는 사방밸브의 설계기술이다.Among the various types of valves, such as three-way, four-way, and five-way valves, which control the fluid in the piping, two-way stop valves and one-way fluids in many directions, the present invention is a four- Technology.

앞서 설명한 바와 같이 고압가스냉매가 히트펌프의 배관을 흐를 때 기화열을 흡수하면서 액체에서 기체로 변할 때와 액화열을 방출하면서 기체에서 액체로 변할 때의 유체가 흐르는 방향을 전환시켜서 냉방작용과 난방작용으로 선택할 수 있게 하는 데에는 특수구조의 사방밸브가 필요했다.As described above, when the high-pressure gas refrigerant flows through the piping of the heat pump, it absorbs the heat of vaporization and changes the direction of the fluid flowing from the gas to the liquid as it changes from liquid to gas and discharges the liquid heat. The four-way valve of the special structure was necessary to be able to choose.

히트펌프에 필요한 사방밸브는 2 개의 배관에 흐르는 유체를 정방향으로 보내는 것과 역방향으로 교차시켜서 보내는 것을 필요에 따라서 선택할 수 있는 기능을 갖추면 되는데, 기존제품에 사용하는 사방밸브는 특수하게 가공된 부품이 10 여 개가 조립된 복잡한 구조로서 미국제품이 사용되고 있는데 너무 고가이기 때문에 국내 기업과 중국의 업체들이 미국제품을 모방한 제품이 제작되어 시중에 유통되고 있는데, 기존제품의 구조와 조립방법을 유사하게 모방함으로 복잡하고 많은 부품을 가공하여 조립하기 때문에 고장빈도가 잦은 사방밸브 제품을 그대로 제작하고 있어서 히트펌프의 고장발생 원인이 되고 있어서 보다 밸브의 개방과 폐쇄가 명확하면서도 고압의 유체 누설과 고장이 없는 사방밸브가 요구되고 있다.The four-way valve required for the heat pump has to have a function to select if necessary to send the fluid flowing in the two pipes in the forward direction and to cross them in the reverse direction. Since US products are used as complex structures assembled with fur, it is too expensive, so domestic companies and Chinese companies produce products that mimic US products and are circulated on the market. By mimicking the structure and assembly methods of existing products Because it is complicated and many parts are assembled by machining, the four-way valve product with frequent faults is manufactured as it is, which causes the failure of the heat pump. Therefore, it is possible to prevent the leakage and failure of high- .

2 개의 배관에 연결되는 사방밸브 A, B, C, D 의 배관 연결구에서 토출연결구 A 와 흡입연결구 D 의 배관에 흐르는 유체를 B 와 C 를 선택해서 정방향과 역방향으로 교차시켜 응축기와 증발기를 선택하여 공급하도록 견고하고 신뢰성 있게 하기 위해서 부분품 숫자를 획기적으로 줄여서 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브를 제작하고자 한다.Select the condenser and the evaporator by selecting B and C from the piping connection of the four-way valves A, B, C, and D connected to the two pipes to the piping of the discharge connection port A and the suction connection port D, In order to make it robust and reliable to supply, we intend to make a four-way valve that drastically reduces the number of parts, so that the operating part through-hole changes the fluid flow direction .

본 발명은 기존의 사방밸브가 가지고 있는 문제점을 개선하여 특수하게 가공된 10 여 개의 부품 (좌측피스톤, 좌측기밀 실링, 우측피스톤, 우측기밀 실링, 좌우 연결봉, 작동레일, 바이패스 반달캡, 중간기밀 실링 등)을 정밀 가공하여 조립되므로 구조가 복잡하여 유체누설 등의 고장이 많은 기존의 사방밸브의 기능을 그대로 수행하면서도 부분품 수를 3 가지로 줄여서 하나의 환봉에 유체가 흐르는 통공홀과 레일홈을 가공하고 작동부의 좌측과 우측에 기밀용 O 링을 일체로 체결하여, 일체형 좌우 피스톤으로 구성된 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브를 제공한다.The present invention improves the problems of the conventional four-way valve and provides the advantages of the present invention in that it is possible to improve the performance of the conventional four-way valves by using a combination of 10 specially machined parts (left piston, left airtight seal, right piston, right airtight seal, left connecting rod, Sealing, etc.) is assembled by precision machining. Therefore, it is possible to reduce the number of parts to three, while allowing the function of conventional four-way valve, which has many troubles such as fluid leakage, And an airtight O-ring is integrally fastened to the left and right sides of the operating portion, so that an operating portion through- hole composed of an integral left and right piston switches the direction of fluid flow .

상기에서와 같이 본 발명은, 히트펌프를 구성하는데 핵심 부품인 사방밸브가 신뢰성 있는 것은 특수 소재로 제작된 외국 제품이었고 모방하여 만들었던 국산이나 중국제품은 신뢰성이 저하되어 히트펌프 고장발생의 원인이 되었던 사방밸브의 문제점을 해결할 수 있게 될 것이며 특수 부품을 수입대체 하여 국산화로 생산, 산업경제에 기여 할 수 있다.As described above, according to the present invention, the four-way valve, which is a key component in constructing the heat pump, is a foreign product made of a special material, and the domestic or Chinese products made by imitation have become a cause of failure of the heat pump It will be able to solve the problem of the four-way valve, and it can contribute to the production economy and the industrial economy by importing and replacing the special parts.

도 1 은 본 발명에 의한 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브의 조립과 작동부가 좌측에 이동상태를 나타낸 통공홀 결합사시도.
도 2 는 도 1 에서 분리된 작동부를 분해하여 통공홀이 가공된 상태를 표기하여 하부에서 관측한 사시도.
도 3 은 본 발명에 의한 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브의 조립과 작동부가 우측에 이동상태를 나타낸 통공홀 결합사시도.
도 4 는 도 1 에서 분리된 작동부를 분해하여 통공홀이 가공된 상태를 표기하여 상부에서 관측한 사시도.
※ 도면의 주요부분에 대한 부호의 설명 ※
100: 작동부
101: 좌측 경사통공홀 102: 우측 경사통공홀
103: 바이패스 통공홀 104: 직선레일 통공홀
200: 실린더 케이스
201: 공급측 연결구(A) 202: 흡입측 연결구(D)
203: 좌측 사용처 연결구(B) 204: 우측 사용처 연결구(C)
205: 좌측 조종가스 연결구 206: 우측 조종가스 연결구
300: 직선레일 유지봉FIG. 1 is a perspective view of a through hole showing assembling of a four-way valve for switching the fluid flow direction of the operating portion through-hole according to the present invention and showing a moving state of the operating portion to the left.
FIG. 2 is a perspective view of a state in which a through-hole is machined by disassembling an operating part separated in FIG. 1 and observed from the bottom; FIG.
Fig. 3 is a perspective view showing a through-hole combined perspective view showing the assembly of the four-way valve for switching the fluid flow direction of the operating portion through-hole according to the present invention and the movement of the operating portion to the right side.
FIG. 4 is a perspective view of a state in which a through-hole is machined by disassembling the operating part separated in FIG. 1 and observed from above. FIG.
[Description of Reference Numerals]
100:
101: Left side inclined through hole 102: Right side inclined through hole
103: Bypass through hole 104: Straight rail through hole
200: Cylinder case
201: Supply side connection (A) 202: Suction side connection (D)
203: Left side connector (B) 204: Right side connector (C)
205: Left side control gas connection port 206: Right side control gas connection port
300: Straight rail retaining rods

상기와 같은 목적을 달성하기 위해 안출된 발명으로 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브를 제작하는 방법을 제시하기 위하여, 첨부된 도면을 참고하여 상세히 기술하기로 한다.In order to accomplish the above object, the present invention will be described in detail with reference to the accompanying drawings in order to provide a method of manufacturing a four-way valve in which an operating portion through-hole changes a fluid flow direction .

도 1 은 본 발명에 의한 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브의 조립과 작동부가 좌측으로 이동된 상태를 나타낸 통공홀의 결합 사시도이며, 도 2 는 도 1 에서 분리된 작동부를 분해하여 통공홀이 가공된 상태를 표기하여 하부에서 관측한 사시도이다.FIG. 1 is a perspective view showing an assembled assembly of a four-way valve for switching the fluid flow direction of the operating portion through-hole according to the present invention and a combined through hole showing a state in which the operating portion is moved to the left. A through hole is a perspective view showing the processed state and observed from below.

도 3 은 본 발명에 의한 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브의 조립과 작동부가 우측으로 이동된 상태를 나타낸 통공홀 결합 사시도이며, 도 4 는 도 1 에서 분리된 작동부를 분해하여 통공홀이 가공된 상태를 표기하여 상부에서 관측한 사시도이다.FIG. 3 is a perspective view of a through-hole combined with assembly of the four-way valve for switching the fluid flow direction of the operating portion through-hole according to the present invention and a state in which the operating portion is moved to the right. FIG. A through hole is a perspective view of a state in which the hole is processed and observed from above.

본 발명의 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브는 외곽의 실린더케이스(200) 내에서 피스톤의 형태로 좌우로 이동하는 작동부(100)로 구성되며 작동부에 가공된 좌측 경사통공홀(101)과 우측 경사통공홀(102)이 드릴링 작업으로 원형의 통공홀과 타원형의 홈으로 가공되어 있으며 유체가 흐르는 유로가 좌 우로 선택 될 수 있는 구조이며, 4 방향으로 배관 연결구(A, B, C, D)가 상부에 공급연결구(201) A, 배관 하부 중앙에 흡입연결부(202) D 배관, 하부 좌측에 좌측사용연결구(203) B 배관, 하부 우측에 우측사용연결구(204) C 배관이 결합되어 있으며, 실린더케이스(200)의 양쪽 끝 단에 내경이 가늘은 모세관 규격으로 설정되어 좌측에는 좌측조종가스연결구(205)가 우측에는 우측조종가스연결구(206) 등이 기밀이 유지될 수 있도록 결합되어 전기용접이나 산소용접으로 배관이 장착되어 있으며, 중앙부가 비어 있는 외곽의 실린더 케이스(200)가 통으로 구성되어 있으며,The four-way valve for switching the fluid flow direction of the operating portion through-hole is composed of an operating portion 100 that moves right and left in the form of a piston in an outer cylinder case 200, The hole 101 and the right inclined through-hole 102 are machined into a circular through hole and an elliptical groove by a drilling operation, and a flow path through which the fluid flows can be selected as the left and right. B, C, and D are provided at the upper portion of the supply connection port 201A, the suction connection portion 202 at the lower center of the pipe, the D piping, the lower left port 203 and the right port B, The left and right pilot gas connection ports 205 and 205 and the right pilot gas connection port 206 are hermetically sealed at the left and right ends of the cylinder case 200, respectively. Electric welding is combined to And a cylinder case 200 having an outer periphery in which a central portion is empty is constituted by a cylinder,

실린더 케이스(200)내부에 피스톤형의 작동부가 움직이는 직선안내레일통공홀(104)과 직선레일 유지봉(300)이 삽입되어 좌우로 이동할 수 있도록 밀착 조립되어 있다.The linear guide rail through hole 104 and the linear rail holding rod 300 are inserted into the cylinder case 200 so as to move in the left and right direction.

본 발명 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브의 작동은 실린더케이스(200) 내부에 삽입되어 있는 작동부(100)의 좌우 위치에 따라서 유체가 흐르는 통공홀의 방향이 전환 되는데,In the operation of the four-way valve in which the through hole of the operating portion of the present invention switches the flow direction of the fluid, the direction of the through hole through which the fluid flows is switched according to the right and left position of the operating portion 100 inserted into the cylinder case 200,

도 1 에서 표기된 것은 우측조종가스연결구(206)에 고압가스가 들어와서 작동부가 좌측으로 밀렸을 때 유체가 흐르는 통공홀의 유로이다.1 is a flow passage of a through hole through which fluid flows when a high-pressure gas enters the right control gas connection port 206 and the operation portion is pushed to the left.

사방밸브의 공급측연결구(201) A 는 우측사용연결구(204) C 와 연결되며, 흡입측연결구(202) D 는 좌측사용연결구(204) B 로 연결되어 화살표의 방향으로 유체가 흐르게 되며The supply side connection port 201 A of the four-way valve is connected to the right usage connection port 204 C, the suction side connection port 202 D is connected to the left usage port 204 B,

도 3 에서 표기된 것은 좌측조종가스연결구(205)에 고압가스가 들어와서 작동부가 우측으로 밀렸을 때 유체가 흐르는 통공홀의 유로이다. 사방밸브의 공급측연결구(201) A 는 좌측사용연결구(203) B 와 연결되며, 흡입측연결구(202) D 는 우측사용연결구(203) C 로 연결되어 화살표의 방향으로 유체가 흐르게 되도록 구성되어 있다.3 is a flow passage through which the fluid flows when the high-pressure gas enters the left control gas connection port 205 and the operation portion is pushed to the right. The supply side connection hole 201 A of the four-way valve is connected to the left use connection hole 203 B and the suction side connection hole 202 D is connected to the right use connection hole 203 C so that the fluid flows in the direction of the arrow .

본 발명에서는 원통형구조의 실린더케이스(200)에 원봉의 피스톤으로 작동부(100)가 삽입되어 있는 원형의 구조로 제시하고 있지만 작동부(100)와 실린더케이스(200)를 사각형태로 구성할 수도 있는 것으로 히트펌프를 구성하는데 핵심 부분품인 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브를 제공할 수 있게 된 것이다.In the present invention, although the circular structure in which the actuating part 100 is inserted into the cylindrical cylinder 200 of the cylindrical structure is shown as a piston of the cylinder rod, the actuating part 100 and the cylinder case 200 may be formed in a rectangular shape Which is a core part in constituting the heat pump, can provide a four-way valve for switching the flow direction of the fluid .

Claims (3)

사방밸브를 구성함에 있어 실린더 케이스(200)내부에 피스톤형의 작동부(100)가 움직이는 직선 안내레일통공홀(104)과 직선레일 유지봉(300)이 삽입되어 좌우로 이동할 수 있도록 밀착 조립되어 있으며, 실린더케이스(200) 내부에 삽입되어 있는 작동부(100)의 좌우 위치에 따라서 유체가 흐르는 통공홀의 방향이 전환 되는데, 우측조종가스연결구(206)에 고압가스가 들어와서 작동부가 좌측으로 밀렸을 때 유체가 흐르는 통공홀의 유로의 방향이 사방밸브의 공급측연결구(201) A 는 우측사용연결구(204) C 와 연결되고, 흡입측연결구(202) D 는 좌측사용연결구(204) B로 연결되어 화살표의 방향으로 유체가 흐르게 되며,
좌측조종가스연결구(205)에 고압가스가 들어와서 작동부가 우측으로 밀렸을 때 유체가 흐르는 통공홀의 유로의 방향이 사방밸브의 공급측연결구(201) A 는 좌측사용연결구(203) B 와 연결되고, 흡입측연결구(202) D 는 우측사용연결구(203) C 로 연결되어 화살표의 방향으로 유체가 흐르게 되도록 구성되어 있는 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브.In forming the four-way valve, a linear guide rail through-hole 104 and a linear rail retaining rod 300, in which a piston-type actuating part 100 moves, are inserted into the cylinder case 200, The direction of the through hole through which the fluid flows according to the left and right positions of the actuating part 100 inserted in the cylinder case 200 is switched. When the high-pressure gas enters the right control gas connector 206 and the actuating part is pushed to the left The direction of the flow path of the through hole through which the fluid flows when the supply side connection port 201 A of the four-way valve is connected to the right usage port 204 C and the suction side port 202 D is connected to the left usage port 204 The fluid flows in the direction of the arrow,
When the high-pressure gas enters the left control gas connection port 205 and the operation portion is pushed to the right, the direction of the flow path of the through-hole through which the fluid flows is connected to the left use port 203 B of the four- The suction side connection port (202) D is connected to the right usage connection port (C) 203 so that the operation part through-hole configured to flow the fluid in the direction of the arrow switches the fluid flow direction . 하나의 피스톤에 유로를 형성하는 통공홀로 가공된 작동부(100);
청구항 제 1 항에 있어 사방밸브를 구성하는데 외곽의 실린더케이스(200) 내에서 피스톤의 형태로 좌우로 이동하는 작동부(100)로 구성되며 작동부에 가공된 좌측 경사통공홀(101)과 우측 경사통공홀(102)이 원형의 통공홀과 타원형의 홈으로 가공되어 있으며 유체가 흐르는 유로가 좌 우로 선택 될 수 있는 구조의 작동부(100)가 하나의 피스톤에 일체로 구성되어 있는 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브.An actuating part (100) machined into a through hole for forming a passage in one piston;
The left side inclined through-hole (101) formed in the operating part and the operating part (100) constituting the four-way valve and moving left and right in the form of a piston in the outer cylinder case (200) inclined aperture hole 102 is processed into a groove of the aperture hole with an elliptical circular and the operating portion through hole that is configured integral with the structure the operating portion 100 is a piston of which the fluid flow path may be selected left and right of flowing A four-way valve in which the holes divert fluid flow direction . 청구항 제 1 항에 의하여 4 방향의 배관 연결구(A, B, C, D)가 상부에 공급연결구(201) A, 배관 하부 중앙에 흡입연결부(202) D 배관, 하부 좌측에 좌측사용연결구(203) B 배관, 하부 우측에 우측사용연결구(204) C 배관이 결합되어 있으며, 실린더케이스(200)의 양쪽 끝 단에 내경이 가늘은 모세관 규격으로 설정되어 좌측에는 좌측조종가스연결구(205)가 우측에는 우측조종가스연결구(206)가 장착되어 있으며, 중앙부가 비어 있는 외곽의 실린더 케이스(200)가 원통이나 사각의 통에 연결구가 구성되어 있는 작동부 통공홀이 유체흐름 방향을 전환하는 사방밸브.The piping system according to claim 1, wherein the piping connection ports (A, B, C, D) in the four directions are provided with a supply connection port (201) A at an upper portion, a D piping at a suction connection port (202) And a right use coupling 204 pipe C is connected to the lower right side of the cylinder case 200. Capillary standards having a narrow inner diameter are set at both ends of the cylinder case 200. A left control gas connection port 205 is provided on the left side, And an operating portion through- hole in which an outer cylinder portion 200 having an empty central portion is connected to a cylinder or a rectangular tube is configured to switch the flow direction of the fluid .
KR1020140001596A 2014-01-07 2014-01-07 Four-way valve for switching the fluid flow direction KR20150081777A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113274563A (en) * 2021-04-25 2021-08-20 深圳市先健呼吸科技有限公司 Lavage catheter and lavage catheter system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113274563A (en) * 2021-04-25 2021-08-20 深圳市先健呼吸科技有限公司 Lavage catheter and lavage catheter system
CN113274563B (en) * 2021-04-25 2024-04-16 深圳市先健呼吸科技有限公司 Lavage catheter and lavage catheter system

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