KR100486570B1 - Suction valve assembly - Google Patents
Suction valve assembly Download PDFInfo
- Publication number
- KR100486570B1 KR100486570B1 KR10-2002-0051235A KR20020051235A KR100486570B1 KR 100486570 B1 KR100486570 B1 KR 100486570B1 KR 20020051235 A KR20020051235 A KR 20020051235A KR 100486570 B1 KR100486570 B1 KR 100486570B1
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- Prior art keywords
- piston
- suction
- inner piston
- suction valve
- valve
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Classifications
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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
- F04B39/102—Adaptations or arrangements of distribution members the members being disc 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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- 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
- F04B39/14—Provisions for readily assembling or disassembling
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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
Abstract
본 발명은 흡입밸브 조립체에 관한 것으로, 본 발명은 전동기구부의 가동자에 연결하고 그 내부에 흡입유로를 형성하는 내측피스톤과, 실린더의 내주면에 미끄럼 접촉하도록 상기 내측피스톤의 외주면에 삽입하여 일체로 결합하고 상기한 내측피스톤의 흡입유로에 연통하도록 흡입통공을 형성하는 외측피스톤과, 내측피스톤의 흡입유로와 외측피스톤의 흡입통공 사이에 위치하도록 외측피스톤에 수용하여 상기한 흡입유로를 개폐하는 흡입밸브를 포함함으로써, 내측피스톤과 외측피스톤의 가공과 조립이 용이할 뿐만 아니라 미끄럼부의 간격을 정교하게 유지할 수 있어 동작중에 압축가스가 실린더와 피스톤 사이로 누설되는 것을 방지하여 압축기 성능을 향상할 수 있다. 또, 외측피스톤을 이용하여 나선형의 궤적을 따라 개폐되는 흡입밸브를 상기한 내측피스톤에 압착 고정함으로써, 흡입밸브의 응답성을 높여 흡입손실을 줄일 수 있을 뿐만 아니라 흡입밸브의 조립을 간소화하여 생산성을 높일 수 있다.The present invention relates to an intake valve assembly, and the present invention is integrally inserted into the outer circumferential surface of the inner piston so as to be in sliding contact with the inner circumferential surface of the cylinder and the inner piston connected to the mover of the motor mechanism and forming a suction passage therein. A suction valve which is coupled to the outer piston so as to communicate with the suction flow path of the inner piston, and which is accommodated in the outer piston so as to be located between the suction flow path of the inner piston and the suction hole of the outer piston. By including, not only the processing and assembly of the inner piston and the outer piston can be easily maintained, and the gap between the sliding portions can be kept precisely, thereby preventing the compressed gas from leaking between the cylinder and the piston during operation, thereby improving the compressor performance. In addition, by pressing and fixing the suction valve which is opened and closed along the spiral trajectory using the outer piston to the inner piston, the suction valve can be responsive to reduce suction loss and simplify the assembly of the suction valve to improve productivity. It can increase.
Description
본 발명은 흡입밸브 조립체에 관한 것으로, 특히 피스톤을 내측 피스톤과 외측 피스톤으로 형성하여 조립성을 높인 흡입밸브 조립체에 관한 것이다. The present invention relates to an intake valve assembly, and more particularly, to an intake valve assembly having improved assembly by forming a piston as an inner piston and an outer piston.
일반적으로 압축기의 흡입밸브는 압축공간의 흡입측에 배치하여 피스톤의 흡입 및 압축운동시 토출측과의 압력차에 따라 압축공간을 개폐하면서 유체의 흡입정도를 제한하는 것으로, 이러한 흡입밸브에는 왕복동식 압축기의 피스톤에 장착하여 그 피스톤과 함께 왕복운동을 하면서 압축공간을 개폐하여 흡입저항과 토출저항을 줄이는 관성형 흡입밸브가 알려져 있다.In general, the suction valve of the compressor is disposed on the suction side of the compression space to limit the intake of the fluid while opening and closing the compression space according to the pressure difference with the discharge side during the suction and compression movement of the piston. The inertial suction valve is known to reduce the suction resistance and the discharge resistance by opening and closing the compression space while reciprocating with the piston.
도 1은 종래 흡입밸브 조립체를 분해하여 보인 사시도이고, 도 2는 종래 흡입밸브 조립체를 조립한 종단면도이다.1 is an exploded perspective view illustrating a conventional suction valve assembly, and FIG. 2 is a longitudinal cross-sectional view of a conventional suction valve assembly.
이에 도시한 바와 같이 종래의 관성형 흡입밸브 조립체는, 왕복동식 모터(미도시)의 가동자 등에 결합하여 함께 직선으로 왕복운동을 하는 피스톤(10)과, 피스톤(10)의 흡입유로(12)를 개폐하는 흡입밸브(20)와, 흡입밸브(20)를 수용하여 피스톤(10)에 결합하는 밸브고정캡(30)으로 구성하고 있다.As shown in the drawing, the conventional inertial suction valve assembly includes a piston 10 and a suction flow path 12 of the piston 10 which are coupled to a mover of a reciprocating motor (not shown) and linearly reciprocate together. It consists of a suction valve 20 for opening and closing the valve fixing cap 30 for receiving the suction valve 20 and coupled to the piston (10).
피스톤(10)은 피스톤 몸체(11)의 중앙을 축방향으로 관통하는 한 개의 흡입유로(12)를 형성하고, 선단측 외주면에는 상기한 밸브고정캡(30)을 압입할 수 있도록 고정캡장착홈(13)을 형성하고 있다.The piston 10 forms one suction passage 12 penetrating the center of the piston body 11 in the axial direction, and the fixed cap mounting groove to press-fit the valve fixing cap 30 to the outer peripheral surface of the front end side. (13) is formed.
흡입밸브(20)는 얇은 판형으로 형성하되, 그 중앙에는 피스톤(10)의 흡입유로(12)를 개폐하는 개폐부(21)를 형성하고, 가장자리에는 상기 흡입유로(12)를 통과한 유체를 실린더(미도시)의 압축공간으로 흡입할 수 있도록 가스흡입홈(22)을 등간격으로 홈파기 형성하며, 각 가스흡입홈(22)의 사이에는 밸브고정캡(30)의 내주면에 미끄럼 접촉하도록 안내돌부(23)를 형성하고 있다.The intake valve 20 is formed in a thin plate shape, the opening and closing portion 21 for opening and closing the suction flow path 12 of the piston 10 is formed in the center, the fluid passing through the suction flow path 12 at the edge of the cylinder The gas suction grooves 22 are formed at equal intervals so as to be sucked into the compression space (not shown), and the gas suction grooves 22 guide the sliding contact with the inner circumferential surface of the valve fixing cap 30 between the gas suction grooves 22. The protrusion 23 is formed.
밸브고정캡(30)은 원통형으로 형성하되 출구측 개구부는 흡입밸브(20)의 안내돌부(23)를 걸어 지지하도록 중앙쪽으로 절곡하여 걸림돌부(31)를 형성하고 이 걸림돌부(31)의 내경은 흡입밸브(20)의 개폐부(21) 외경 보다 크게 가스통공(32)을 형성하도록 하고 있다. The valve fixing cap 30 is formed in a cylindrical shape, but the outlet side opening is bent toward the center to support the guide protrusion 23 of the suction valve 20 to form a catching protrusion 31, and the inner diameter of the catching protrusion 31 is formed. The gas cylinder hole 32 is formed to be larger than the outer diameter of the opening and closing portion 21 of the intake valve 20.
도면중 미설명 부호인 S는 밸브유동공간이다.In the drawings, reference numeral S denotes a valve flow space.
상기와 같은 종래 흡입밸브 조립체는 다음과 같이 동작한다.The conventional suction valve assembly as described above operates as follows.
즉, 피스톤(10)이 왕복동식 모터(미도시)의 가동자 등과 함께 직선으로 왕복운동을 하면, 흡입밸브(20)가 자체 관성과 흡입유로(12)를 통한 냉매가스의 압력에 밀려 밸브고정캡(30)의 밸브유동공간(S) 내에서 축방향으로 이동하면서 냉매가스를 압축공간(P)으로 유도한다.That is, when the piston 10 reciprocates linearly with a mover or the like of a reciprocating motor (not shown), the suction valve 20 is pushed by the pressure of the refrigerant gas through the inertia and the suction passage 12 to fix the valve. The refrigerant gas is guided to the compression space P while moving in the axial direction within the valve flow space S of the cap 30.
이를 보다 상세히 살펴보면, 도 3에서와 같이 피스톤(10)이 후방측(가동자와의 연결측)으로 이동하면서 흡입행정을 실시할 때 흡입밸브(20)는 밸브고정캡(30)의 걸림돌부(31)쪽으로 이동하여 밀착하나 흡입밸브(20)의 개폐부(21) 외경이 밸브고정캡(30)의 가스통공(32) 직경 보다 작아 피스톤(10)의 흡입유로(12)를 통과하는 냉매가스가 가스흡입홈(22)과 가스통공(32)을 거쳐 압축공간(P)으로 원활하게 유입한다.Looking at this in more detail, as shown in Figure 3 when the piston 10 moves to the rear side (connection side with the actuator) while performing the suction stroke, the suction valve 20 is a locking portion of the valve fixing cap 30 ( 31, the refrigerant gas passing through the suction flow path 12 of the piston 10 is smaller than the diameter of the gas through hole 32 of the valve fixing cap 30 because the outer diameter of the opening / closing portion 21 of the suction valve 20 It smoothly flows into the compression space (P) via the gas suction groove 22 and the gas through hole (32).
반면, 도 4에서와 같이 피스톤(10)이 압축행정을 실시할 때 흡입밸브(20)는 피스톤(10)의 선단면 쪽으로 이동하면서 밀착하여 흡입유로(12)를 차단하므로 압축가스가 압축중에 흡입유로(12)를 통해 누설하는 것을 방지하는 것이었다.On the other hand, when the piston 10 performs the compression stroke as shown in FIG. 4, the suction valve 20 moves toward the front end face of the piston 10 to close the inlet flow path 12 so that the compressed gas is sucked during compression. The leakage through the flow path 12 was prevented.
그러나, 상기와 같은 종래 흡입밸브 조립체에 있어서는, 피스톤(10)에 밸브고정캡(30)을 후조립하는 것이나, 피스톤(10)과 밸브고정캡(30)의 외주면이 실린더(미도시)의 내주면과 미끄럼 접촉하여야 하므로 정확한 치수관리가 어렵고 자칫 가공오차가 발생할 경우 실린더와 피스톤(10) 사이의 실링력이 감소하면서 압축가스가 누설할 우려가 있었다.However, in the above-described conventional suction valve assembly, the post-assembly of the valve fixing cap 30 to the piston 10, the outer peripheral surface of the piston 10 and the valve fixing cap 30 is the inner peripheral surface of the cylinder (not shown) Because it should be in sliding contact with the exact dimension management is difficult and if there is a processing error occurs, the sealing force between the cylinder and the piston 10 was reduced, there was a fear that the compressed gas leaks.
본 발명은 상기와 같은 종래 흡입밸브 조립체가 가지는 문제점을 감안하여 안출한 것으로, 흡입밸브를 피스톤에 장착하는 밸브고정캡과 피스톤을 용이하게 가공하여 조립할 수 있는 흡입밸브 조립체를 제공하려는데 본 발명의 목적이 있다. The present invention has been made in view of the problems of the conventional intake valve assembly as described above, to provide a suction valve assembly that can be easily processed by assembling the valve fixing cap and the piston for mounting the intake valve to the piston object of the present invention There is this.
본 발명의 목적을 달성하기 위하여, 전동기구부의 가동자에 연결하고 그 내부에 흡입유로를 형성하는 내측피스톤과, 실린더의 내주면에 미끄럼 접촉하도록 상기 내측피스톤의 외주면에 삽입하여 일체로 결합하고 상기한 내측피스톤의 흡입유로에 연통하도록 흡입통공을 형성하는 외측피스톤과, 내측피스톤의 흡입유로와 외측피스톤의 흡입통공 사이에 위치하도록 외측피스톤에 수용하여 상기한 흡입유로를 개폐하는 흡입밸브를 포함한 것을 특징으로 하는 흡입밸브 조립체를 제공한다.In order to achieve the object of the present invention, the inner piston which is connected to the mover of the electric mechanism and forms a suction flow path therein, and inserted into the outer circumferential surface of the inner piston so as to be in sliding contact with the inner circumferential surface of the cylinder and coupled integrally An outer piston for forming a suction hole so as to communicate with the suction channel of the inner piston, and a suction valve which is accommodated in the outer piston so as to be located between the suction channel of the inner piston and the suction hole of the outer piston to open and close the suction channel. It provides a suction valve assembly.
이하, 본 발명에 의한 흡입밸브 조립체를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.Hereinafter, the intake valve assembly according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.
도 5는 본 발명 흡입밸브 조립체를 분해하여 보인 사시도이고, 도 6은 본 발명 흡입밸브 조립체를 조립한 종단면도이며, 도 7 및 도 8은 본 발명 흡입밸브 조립체의 동작을 보인 종단면도이다.5 is an exploded perspective view illustrating the intake valve assembly of the present invention, FIG. 6 is a longitudinal cross-sectional view of the intake valve assembly of the present invention, and FIGS. 7 and 8 are longitudinal cross-sectional views illustrating the operation of the intake valve assembly of the present invention.
이에 도시한 바와 같이 본 발명에 의한 흡입밸브 조립체는, 왕복동식 모터(미도시)의 가동자 등에 결합하여 직선으로 왕복운동을 하는 내측피스톤(110)과, 내측피스톤(110)의 외주면에 삽입하여 실린더(미도시)에 미끄럼 접촉하도록 결합하는 외측피스톤(120)과, 내측피스톤(110)의 선단면과 이에 대응하는 외측피스톤(120)의 내벽면 사이에 개재하여 내측피스톤(110)의 흡입유로(112)를 개폐하는 흡입밸브(130)를 포함한다.As shown in the drawing, the suction valve assembly according to the present invention is inserted into an inner piston 110 and an outer circumferential surface of the inner piston 110 that are linearly reciprocated in engagement with a mover of a reciprocating motor (not shown). Suction flow path of the inner piston 110 is interposed between the outer piston 120 to be in sliding contact with the cylinder (not shown), the front end surface of the inner piston 110 and the inner wall surface of the outer piston 120 corresponding thereto. And a suction valve 130 for opening and closing 112.
내측피스톤(110)은 왕복동식 모터의 가동자에 결합한 피스톤 몸체(111)의 중앙부에 흡입유로(112)를 길게 관통 형성하여 이루어진다.The inner piston 110 is formed by long penetrating the suction flow path 112 in the central portion of the piston body 111 coupled to the mover of the reciprocating motor.
피스톤 몸체(111)는 도 5에서와 같이 그 외주면을 민통 모양으로 형성하고 있으나, 경우에 따라서는 외측피스톤(120)과의 결합력을 높이도록 걸림돌기(미도시)를 띠 모양 등으로 형성할 수 있다. The piston body 111 is formed in the outer circumferential surface in a non-tongseu shape as shown in Figure 5, in some cases may be formed in a band shape or the like projection (not shown) to increase the coupling force with the outer piston (120). have.
흡입유로(112)는 그 출구가 피스톤 몸체(111)의 선단면 중앙으로 관통 형성하되, 도면으로 제시하지는 않았지만 출구부는 안쪽에서 출구단쪽으로 갈수록 점진적으로 직경을 작게 형성하는 것이 바람직하다.The suction passage 112 is formed through the outlet through the center of the front end surface of the piston body 111, although not shown in the drawing, it is preferable that the outlet portion gradually forms a smaller diameter from the inside toward the outlet end.
외측피스톤(120)은 내측피스톤(110)의 피스톤 몸체(111) 전체를 감쌀 수 있는 길이로 형성하고, 그 내경은 내측피스톤(110)의 외경과 거의 동일하게 형성하여 내측피스톤(110)에 압입하되 그 전방단은 내측피스톤(110)과의 사이에 일정한 밸브유동공간(S)을 두고 결합하는 것이 바람직하다.The outer piston 120 is formed to have a length that can cover the entire piston body 111 of the inner piston 110, the inner diameter is formed to be substantially the same as the outer diameter of the inner piston 110 to be press-fit into the inner piston 110 However, the front end is preferably coupled with a constant valve flow space (S) between the inner piston (110).
또, 외측피스톤(120)의 전방단은 흡입밸브(130)의 이동을 제한하는 걸림돌부(121) 두고 그 내경이 가스통공(122)을 이루도록 절곡 형성한다. 가스통공(122)은 통상 흡입유로(112)의 출구단 직경 보다 크고 후술할 흡입밸브(130)의 가스흡입홈(132) 내경을 잇는 가상선 직경, 즉 개폐부(131) 직경 보다도 크게 형성한다.In addition, the front end of the outer piston 120 is formed to be bent so as to form a gas through-hole 122 with the locking portion 121 for limiting the movement of the suction valve 130. The gas through hole 122 is formed to be larger than the diameter of the outlet end of the suction flow path 112 and larger than the imaginary wire diameter connecting the inner diameter of the gas suction groove 132 of the suction valve 130 to be described later, that is, the diameter of the opening and closing portion 131.
흡입밸브(130)는 도 5에서와 같이 외측피스톤(120)의 내주면에 미끄럼 접촉할 수 있도록 그 외경을 외측피스톤(120)의 내경과 거의 동일하게 원판모양으로 형성하되 중앙에 개폐부(131)를 형성하고, 그 밸브(130)의 외주면에는 복수 개의 가스흡입홈(132)을 등간격으로 형성하여 가스유로홈(132) 사이에 안내돌부(131)를 돌출 형성한다. 이 안내돌부(133)의 외주면이 외측피스톤(120)의 내주면과 거의 미끄럼 접촉하는 높이로 형성한다.The intake valve 130 is formed in the shape of a disk substantially the same as the inner diameter of the outer piston 120 so as to be in sliding contact with the inner circumferential surface of the outer piston 120 as shown in FIG. And a plurality of gas suction grooves 132 are formed on the outer circumferential surface of the valve 130 at equal intervals to protrude the guide protrusions 131 between the gas flow path grooves 132. The outer circumferential surface of the guide protrusion 133 is formed at a height in which the outer circumferential surface of the guide protrusion 133 is in substantially sliding contact with the inner circumferential surface of the outer piston 120.
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.
상기와 같은 본 발명 흡입밸브 조립체의 작용 효과는 다음과 같다.Effects of the present invention, such as the suction valve assembly is as follows.
즉, 내측피스톤(110)의 선단면에 흡입밸브(130)를 대고 외측피스톤(120)을 내측피스톤(110)에 끼워 고정한다. 이때 내측피스톤(110)과 외측피스톤(120) 사이에는 상기한 흡입밸브(130)가 관성에 의해 외측피스톤(120)에서 이동할 수 있도록 적당한 밸브유동공간(S)을 두고 결합하는 것이 바람직하다.That is, the suction valve 130 is applied to the front end surface of the inner piston 110 and the outer piston 120 is fixed to the inner piston 110. At this time, between the inner piston 110 and the outer piston 120, it is preferable that the suction valve 130 is coupled to the appropriate valve flow space (S) so as to move in the outer piston 120 by inertia.
이러한 관성형 밸브(130)를 장착한 흡입밸브 조립체는 먼저 내측피스톤(110)이 왕복동식 모터(미도시)의 가동자에 의해 외측피스톤(120)과 함께 후방으로 이동하면 흡입밸브(130)는 관성에 의해 외측피스톤(120)의 밸브유동공간(S)에서 전방측으로 이동하는 형상이 되어 내측피스톤(110)의 선단면에서 이격되는 동시에 외측피스톤(120)의 걸림돌부(121)에 걸려 탈거는 방지된다. 이때, 냉매가스가 내측피스톤(110)의 흡입유로(112)를 통과하여 흡입밸브(130)의 가스흡입홈(132)과 외측피스톤(120)의 가스통공(122) 사이에 열린 구멍을 따라 이동하여 실린더의 압축공간으로 흡입된다.In the inlet valve assembly equipped with the inertial valve 130, the inlet valve 130 is moved backward with the outer piston 120 by the mover of the reciprocating motor (not shown). Due to the inertia, it is moved to the front side in the valve flow space (S) of the outer piston 120 is spaced apart from the front end surface of the inner piston 110 at the same time is caught by the engaging portion 121 of the outer piston 120 is removed. Is prevented. At this time, the refrigerant gas passes through the suction passage 112 of the inner piston 110 and moves along the open hole between the gas suction groove 132 of the suction valve 130 and the gas through hole 122 of the outer piston 120. Is sucked into the compression space of the cylinder.
다음, 내측피스톤이(110) 왕복동식 모터의 가동자에 의해 외측피스톤(120)과 함께 전방으로 이동하면 흡입밸브(130)는 관성에 의해 밸브유동공간(S)에서 후방측으로 이동하는 형상이 되어 내측피스톤(110)의 선단면에 압착하면서 압축공간(P)의 냉매가스를 압축한다. 이 때, 흡입밸브(130)의 개폐부(131) 직경이 내측피스톤(110)의 흡입유로(112) 직경 보다 넓어 압축가스가 흡입유로(112)를 통해 누설되는 것이 방지된다.Next, when the inner piston 110 moves forward together with the outer piston 120 by the mover of the reciprocating motor, the suction valve 130 is moved to the rear side in the valve flow space S by inertia. The refrigerant gas in the compression space (P) is compressed while pressing on the front end surface of the inner piston (110). At this time, the diameter of the opening and closing portion 131 of the suction valve 130 is wider than the diameter of the suction passage 112 of the inner piston 110 to prevent the compressed gas from leaking through the suction passage 112.
이와 같이 외측피스톤(120)이 내측피스톤(110)을 완전히 감싸도록 결함함에 따라 실린더의 내주면과 외측피스톤(120)의 외주면이 미끄럼부를 이루게 되고, 이로 인해 내측피스톤(110)과 외측피스톤(120)을 용이하게 가공하여 조립할 수 있고 동작중에도 외측피스톤(120)이 실린더에 긴밀하게 미끄럼 접촉함에 따라 압축가스가 실린더와 외측피스톤(120) 사이로 누설되는 것을 효과적으로 방지할 수 있다. As described above, the outer piston 120 completely covers the inner piston 110 so that the inner circumferential surface of the cylinder and the outer circumferential surface of the outer piston 120 form a sliding portion, and thus the inner piston 110 and the outer piston 120 are formed. It can be easily processed to assemble and as the outer piston 120 in close sliding contact with the cylinder during operation can effectively prevent the leakage of compressed gas between the cylinder and the outer piston 120.
한편, 흡입밸브(130)는 전술한 바와 같이 관성형 밸브 뿐만 아니라 도 9에서와 같이 리드형 밸브를 적용할 수도 있다. 즉, 흡입밸브(130)의 개폐부(131)가 내측피스톤(110)의 흡입유로(112)를 개폐하도록 그 내측피스톤(110)의 선단면에 대고 그 가장자리인 고정부(134)를 외측피스톤(120)의 걸림돌부(121)로 눌러 상기한 내측피스톤(110)의 선단면 가장자리에 고정하는 반면 고정부(134)에서 중심방향을 향해 나선형으로 절개하여 그 중앙에 형성되는 개폐부(131)가 나선형의 궤적을 따라 벌려졌다가 오므라들면서 상기한 내측피스톤(110)의 흡입유로(112)를 개폐하게 되는 것이다.On the other hand, the suction valve 130 may be applied to the reed-type valve as shown in Figure 9 as well as the inertial valve as described above. That is, the opening and closing portion 131 of the suction valve 130 is applied to the front end surface of the inner piston 110 so as to open and close the suction flow path 112 of the inner piston 110, and the fixing portion 134, which is an edge thereof, is disposed on the outer piston ( While pressing by the locking protrusion 121 of the 120 to be fixed to the edge of the front end surface of the inner piston 110, the opening and closing portion 131 formed at the center of the opening is formed helically cut in the spiral direction from the fixing portion 134 to the center direction. The opening and closing of the suction flow path 112 of the inner piston 110 is opened and closed along the trajectory of.
이러한 리드형 밸브는 흡입밸브(130)의 개폐부(131)가 외측피스톤(120)의 가스통공(122) 밖으로 벌려져 열렸다가 내측피스톤(110)의 흡입유로(112)를 닫는 동작, 즉 밸브의 응답성이 좋아 압축가스가 흡입유로(112)를 통해 역류하는 것을 방지하여 흡입손실을 줄일 수 있다. Such a reed valve opens and closes the opening and closing portion 131 of the suction valve 130 outside the gas through hole 122 of the outer piston 120 and then closes the suction passage 112 of the inner piston 110, that is, Good responsiveness can prevent the compressed gas from flowing back through the suction flow path 112 can reduce the suction loss.
본 발명에 의한 흡입밸브 조립체는, 흡입유로를 구비한 내측피스톤과 그 내측피스톤의 흡입유로를 개폐하는 흡입밸브를 수용하여 상기한 내측피스톤의 외주면에 삽입하는 외측피스톤으로 구성함으로써, 내측피스톤과 외측피스톤의 가공과 조립이 용이할 뿐만 아니라 미끄럼부의 간격을 정교하게 유지할 수 있어 동작중에 압축가스가 실린더와 피스톤 사이로 누설되는 것을 방지하여 압축기 성능을 향상할 수 있다.또, 외측피스톤을 이용하여 나선형의 궤적을 따라 개폐되는 흡입밸브를 상기한 내측피스톤에 압착 고정함으로써, 흡입밸브의 응답성을 높여 흡입손실을 줄일 수 있을 뿐만 아니라 흡입밸브의 조립을 간소화하여 생산성을 높일 수 있다.The suction valve assembly according to the present invention comprises an inner piston having an intake passage and an outer piston which receives an intake valve for opening and closing the intake passage of the inner piston and inserts the outer piston into the outer circumferential surface of the inner piston. The piston can be easily machined and assembled, and the sliding distance can be precisely maintained, thereby preventing the compressed gas from leaking between the cylinder and the piston during operation, thereby improving the compressor performance. By pressing and fixing the suction valve which is opened and closed along the trajectory to the inner piston, the suction valve can be responsive to increase the responsiveness of the suction valve and reduce the suction loss, thereby simplifying the assembly of the suction valve and increasing productivity.
도 1은 종래 흡입밸브 조립체를 분해하여 보인 사시도.1 is an exploded perspective view showing a conventional suction valve assembly.
도 2는 종래 흡입밸브 조립체를 조립한 종단면도.Figure 2 is a longitudinal sectional view of a conventional intake valve assembly assembled.
도 3 및 도 4는 종래 흡입밸브 조립체의 동작과정을 보인 종단면도.3 and 4 are longitudinal cross-sectional view showing the operation of the conventional suction valve assembly.
도 5는 본 발명 흡입밸브 조립체를 분해하여 보인 사시도.Figure 5 is an exploded perspective view of the intake valve assembly of the present invention.
도 6은 본 발명 흡입밸브 조립체를 조립한 종단면도.Figure 6 is a longitudinal sectional view of the assembly of the present invention the suction valve assembly.
도 7 및 도 8은 본 발명 흡입밸브 조립체의 동작을 보인 종단면도.7 and 8 are longitudinal cross-sectional view showing the operation of the intake valve assembly of the present invention.
도 9는 본 발명 흡입밸브 조립체의 변형예를 보인 종단면도.Figure 9 is a longitudinal sectional view showing a modification of the intake valve assembly of the present invention.
** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **
110 : 내측피스톤 111 : 피스톤 몸체110: inner piston 111: piston body
112 : 흡입유로 120 : 외측피스톤112: suction passage 120: outer piston
121 : 걸림돌기 122 : 가스통공121: locking protrusion 122: gas through hole
130 : 흡입밸브 131 : 개폐부130: suction valve 131: opening and closing portion
132 : 가스유로홈 133 : 안내돌부132: gas flow groove 133: guide protrusion
134 : 고정부 S : 흡입밸브의 왕복공간134: fixing part S: reciprocating space of the suction valve
Claims (4)
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| KR10-2002-0051235A KR100486570B1 (en) | 2002-08-28 | 2002-08-28 | Suction valve assembly |
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| KR100486570B1 true KR100486570B1 (en) | 2005-05-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990057587A (en) * | 1997-12-30 | 1999-07-15 | 구자홍 | Refrigerant Gas Suction Structure of Compressor |
| KR20020012898A (en) * | 2000-08-09 | 2002-02-20 | 구자홍 | Structure for sucking active gas in compressor |
| KR100332817B1 (en) * | 2000-05-19 | 2002-04-19 | 구자홍 | Piston structure for linear compressor |
| KR20030047545A (en) * | 2001-12-11 | 2003-06-18 | 엘지전자 주식회사 | Suction valve assembly |
-
2002
- 2002-08-28 KR KR10-2002-0051235A patent/KR100486570B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990057587A (en) * | 1997-12-30 | 1999-07-15 | 구자홍 | Refrigerant Gas Suction Structure of Compressor |
| KR100332817B1 (en) * | 2000-05-19 | 2002-04-19 | 구자홍 | Piston structure for linear compressor |
| KR20020012898A (en) * | 2000-08-09 | 2002-02-20 | 구자홍 | Structure for sucking active gas in compressor |
| KR100360260B1 (en) * | 2000-08-09 | 2002-11-09 | 엘지전자 주식회사 | Structure for sucking active gas in compressor |
| KR20030047545A (en) * | 2001-12-11 | 2003-06-18 | 엘지전자 주식회사 | Suction valve assembly |
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