KR0176812B1 - Cylinder head manufacturing method - Google Patents
Cylinder head manufacturing method Download PDFInfo
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- KR0176812B1 KR0176812B1 KR1019950015360A KR19950015360A KR0176812B1 KR 0176812 B1 KR0176812 B1 KR 0176812B1 KR 1019950015360 A KR1019950015360 A KR 1019950015360A KR 19950015360 A KR19950015360 A KR 19950015360A KR 0176812 B1 KR0176812 B1 KR 0176812B1
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- valve
- cylinder head
- valve seat
- seat surface
- processing
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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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
본 발명은 밸브내장형 실린더헤드의 가공방법에 관한 것으로, 종래의 밸브내장형 실린더헤드에 있어서 밸브시이트면의 가공기준면이 소결 형성되어 다듬어지지 않은 상태의 거친 밸브고정면이어서 밸브시이트면의 가공이 이루어지더라도 배출밸브와 밸브시이트면 사이에서 누설이 발생되어 압축기의 효율이 떨어지는 문제점을 해결하기 위한 것이다. 이와 같은 본 발명은 소결 형성된 실린더헤드(1)의 밸브고정면(8)을 정밀하게 다듬어 가공하는 단계와, 상기와 같이 가공된 밸브고정면(8)을 가공기준면으로 하여 밸브시이트면(5)을 정밀하게 다듬어 상기 밸브고정면(8)과 동일 높이로 가공하는 단계로 구성된다. 이와 같은 본 발명에 의하면 배출밸브와 밸브시이트면의 사이에서 고압의 냉매가스가 역류되는 현상이 배제되어 압축기의 효율이 크게 향상되는 이점이 있다.The present invention relates to a processing method of a valve-embedded cylinder head, and in the conventional valve-embedded cylinder head, the processing reference surface of the valve seat surface is sintered to form a rough valve fixed surface, so that the valve seat surface is processed. Even if the leakage occurs between the discharge valve and the valve seat surface is to solve the problem of low efficiency of the compressor. In the present invention, the step of precisely trimming and processing the valve fixing surface 8 of the sintered cylinder head 1 and the valve seat surface 5 using the valve fixing surface 8 processed as described above as a machining reference surface It is precisely trimmed to the step of processing the same height as the valve fixing surface (8). According to the present invention as described above, the phenomenon in which the high-pressure refrigerant gas flows back between the discharge valve and the valve seat surface is eliminated, so that the efficiency of the compressor is greatly improved.
Description
제1도는 본 발명에 의한 실린더헤드 가공방법을 설명하기 위한 일반적인 밸브내장형 실린더헤드의 평면도.1 is a plan view of a general valve-mounted cylinder head for explaining the cylinder head processing method according to the present invention.
제2도는 본 발명에 의한 실린더헤드 가공방법을 설명하기 위한 일반적인 밸브내장형 실린더헤드의 단면도.2 is a cross-sectional view of a general valve-mounted cylinder head for explaining the cylinder head processing method according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 실린더헤드 2 : 요홈1: cylinder head 2: groove
4 : 토출구 5 : 밸브시이트면4 discharge port 5 valve seat surface
6 : 흡입구 8 : 밸브고정면6: inlet port 8: valve fixing surface
본 발명은 실린더헤드 가공방법에 관한 것으로, 특히 밸브내장형 실린더헤드의 밸브고정면의 가공을 먼저 실시한 후, 이 가공된 밸브고정면을 밸브시이트면의 가공기준면으로 하여 밸브시이트면을 가공하여 배출밸브에서의 누설을 방지하도록 한 밸브내장형 실린더헤드의 가공방법에 관한 것이다.The present invention relates to a cylinder head processing method, and in particular, the valve fixing surface of the valve-mounted cylinder head is first processed, and then the valve seat surface is processed as the processing reference surface of the valve seat surface to discharge valves. The present invention relates to a method for processing a valve-embedded cylinder head to prevent leakage from oil.
밸브내장형 실린더헤드는 배출밸브를 실린더헤드에 형성된 요홈 내에 설치하여 압축기의 데드볼륨을 줄여 압축기의 체적효율을 향상시키도록 한 것이다.The valve-embedded cylinder head is to install the discharge valve in the groove formed in the cylinder head to reduce the dead volume of the compressor to improve the volumetric efficiency of the compressor.
일반적인 밸브내장형 실린더헤드는 실린더헤드의 일면에 요홈을 형성하고, 상기 요홈의 일측단부에 단턱이 진 밸브고정면을 형성하며, 요홈의 일측에 밸브시이트면이 형성된 토출구를 형성하여 구성된다.In general, the valve-embedded cylinder head is formed by forming a groove on one surface of the cylinder head, a valve fixing surface with a stepped end on one side end of the groove, and a discharge port having a valve seat surface formed on one side of the groove.
상기와 같은 밸브내장형 실린더헤드를 가공하는 방법은, 먼저 상기와 같은 형상의 실린더 헤드를 소결 형성한다.In the above-described method for processing a valve-embedded cylinder head, first, a cylinder head having the shape as described above is sintered.
이와 같이 소결 형성된 실린더 헤드의 밸브고정면과 밸브시이트면은 그 표면이 거칠기게 되어 있으므로 배출밸브가 밀착될 수 있도록 밸브시이트면을 정밀하게 가공하는 것이 필요하다.Since the surface of the valve fixed surface and the valve sheet of the sintered cylinder head is roughened, it is necessary to precisely process the valve sheet surface so that the discharge valve can be in close contact.
종래 소결 형성된 실린더헤드의 밸브시이트면의 가공은 상기 밸브고정면의 높이를 측정한 후, 이를 기준으로 하여 밸브시이트면을 가공하게 된다.In the conventional machining of the valve seat surface of the sintered cylinder head, the height of the valve fixing surface is measured, and then the valve sheet surface is processed based on this.
일반적으로 밸브내장형 실린더헤드에 있어서는 밸브고정면과 밸브시이트면이 일정치수 범위내에서 동일 높이에 형성되어야만 배출밸브가 밸브시이트면에 밀착되어 배출 밸브와 밸브시이트면 사이에 틈새가 생기지 않게 되고, 따라서 누설이 발생되지 않아 압축기의 효율이 극대화 될 수 있다.In general, in the valve-embedded cylinder head, the valve fixing surface and the valve seat surface should be formed at the same height within a certain dimension so that the discharge valve is in close contact with the valve seat surface so that there is no gap between the discharge valve and the valve seat surface. Since no leakage occurs, the efficiency of the compressor can be maximized.
그러나, 상기한 바와 같이 만들어지는 종래의 실린더헤드에 있어서는 다음과 같은 문제점이 있다. 즉, 밸브시이트면을 가공함에 있어 소결되어 가공되지 않은 거친 상태의 밸브고정면을 가공기준면으로 하게 되므로 밸브시이트면을 정밀하게 다듬어 가공하더라도 상기 밸브고정면과 밸브시이트면이 일정 치수 범위내서 동일 높이에 있도록 하는 것이 용이하지 않게 되어 이와 같은 상태의 밸브고정면과 밸브시이트면에 배출밸브를 안착시켜 밸브고정면 측을 고정하였을 때, 상기 밸브시이트면과 배출밸브의 사이에 틈새가 형성된다. 따라서, 이와 같은 틈새로 누설이 발생되어 일단 압축되어 토출된 고압의 냉매가스가 피스톤의 흡입행정시에 역류되어 실린더 내로 흡입되고, 이에 의해 압축기의 체적효율이 저하되는 문제점이 있다.However, the conventional cylinder head made as described above has the following problems. In other words, in the processing of the valve seat surface, the valve fixed surface of the rough state which is not sintered and processed is used as the processing reference plane, so that the valve fixed surface and the valve seat surface are the same height within a certain dimension range even when the valve seat surface is precisely machined When the discharge valve is fixed to the valve fixing surface and the valve seat surface in this state and the valve fixing surface side is fixed, a gap is formed between the valve seat surface and the discharge valve. Therefore, a leakage occurs in such a gap, and the high pressure refrigerant gas, once compressed and discharged, flows back into the cylinder during suction of the piston and is sucked into the cylinder, thereby lowering the volumetric efficiency of the compressor.
따라서, 본 발명의 목적은 상기와 같은 종래 기술의 문제점을 해결하는 것으로, 밸브내장형 실린더헤드를 가공함에 있어 밸브고정면을 먼저 가공한 후, 이와 같이 가공된 밸브고정면을 기준면으로 밸브시이트면을 가공하여 배출밸브와 밸브시이트면 사이에서 누설이 발생하는 것을 방지하도록 하는 밸브내장형 실린더헤드 가공방법에 의해 달성된다.Accordingly, an object of the present invention is to solve the problems of the prior art as described above, in the processing of the valve-mounted cylinder head, the valve fixing surface is first processed, and then the valve seat surface is processed as a reference plane. Processing is achieved by a valve-embedded cylinder head machining method that prevents leakage from occurring between the discharge valve and the valve seat surface by machining.
상기와 같은 본 발명의 목적은 소결 형성된 실린더헤드의 밸브고정면을 정밀하게 다듬어 가공하는 단계와, 상기와 같이 가공된 밸브고정면을 가공기준면으로 하여 밸브시이트면을 정밀하게 다듬어 상기 밸브고정면과 동일 높이로 가공하는 단계로 구성되어 상기 밸브시이트면과 배출밸브와의 사이에서의 누설 발생을 방지할 수 있도록 함을 특징으로 하는 밸브내장형 실린더헤드의 가공방법에 의해 달성된다.The object of the present invention as described above is to precisely process the valve fixed surface of the sintered cylinder head, and to precisely refine the valve seat surface by using the machined valve fixed surface as a processing reference surface and the valve fixed surface and It is achieved by the processing method of the valve-embedded cylinder head, characterized in that it is configured to process at the same height to prevent the occurrence of leakage between the valve seat surface and the discharge valve.
상기한 바와 같은 본 발명에 의한 밸브내장형 실린더헤드의 가공방법을 첨부된 도면을 참고하여 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings the processing method of the valve-embedded cylinder head according to the present invention as follows.
제1도 및 제2도는 각각 본 발명에 의한 밸브내장형 실린더헤드의 가공방법을 설명하기 위한 밸브내장형 실린더헤드의 평면도와 단면도이다.1 and 2 are a plan view and a cross-sectional view of a valve built-in cylinder head for explaining a processing method of a valve built-in cylinder head according to the present invention, respectively.
본 발명에 의한 밸브내장형 실린더헤드의 가공 방법이 적용되는 일반적인 밸브내장형 실린더헤드의 구성을 먼저 알아보면, 판상의 실린더헤드(1)의 상면 일측에 요홈(2)이 형성되고, 상기 요홈(2)의 일측 단부에는 배출밸브(미도시)가 안착 고정되는 단차진 밸브고정면(8)이 형성되고, 상기 요홈(2) 내에 천공되어 있는 토출구(4)의 가장자리 부에는 배출밸브가 안착되는 밸브시이트면(5)이 형성된다. 도면중 미설명 부호 6은 흡입구이고, 10은 나사공이다.First, the configuration of the general valve-mounted cylinder head to which the processing method of the valve-embedded cylinder head according to the present invention is applied, the groove 2 is formed on one side of the upper surface of the plate-shaped cylinder head 1, the groove 2 A stepped valve fixing surface 8 on which a discharge valve (not shown) is seated and fixed is formed at one end of the valve seat, and a valve seat on which a discharge valve is seated at an edge of the discharge port 4 drilled in the groove 2. Face 5 is formed. In the figure, reference numeral 6 is a suction port, and 10 is a screw hole.
상기와 같이 구성되는 밸브내장형 실린더헤드(1)는 일반적인 방법으로 소결 형성되고, 이와 같이 소결 형성된 실린더헤드(1)는 소결 형성후의 가공작업을 거쳐 하나의 완성된 실린더헤드(1)로 제조된다.The valve-embedded cylinder head 1 constituted as described above is sintered by a general method, and the sintered cylinder head 1 is manufactured as one completed cylinder head 1 through a machining operation after sintering is formed.
여기서 상기 소결 후의 가공작업을 상세히 설명하면 다음과 같다. 여기서, 실린더헤드(1)의 밸브고정면(8)과 밸브시이트면(5)은 소결 형성되어 있으므로 그 표면이 거칠게 되어 있는 상태이다. 이와 같은 상태의 실린더헤드(1)의 가공은 먼저, 배출밸브가 고정되는 밸브고정면(8)을 정밀하게 다듬는 가공작업을 실시하여 상기 밸브시이트면(5)의 가공을 위한 가공기준면으로서의 표면거칠기를 확보한다. 그리고 이와 같이 정밀하게 다듬어진 밸브고정면(8)을 기준면으로 하여 밸브고정면(8)과 일정 치수 범위 내에서 동일 높이에 밸브시이트면(5)이 형성되도록 정밀하게 다듬는 가공작업을 실시하게 된다.Herein, the processing after the sintering will be described in detail. Here, since the valve fixing surface 8 and the valve sheet surface 5 of the cylinder head 1 are sintered and formed, the surface is rough. In the machining of the cylinder head 1 in such a state, the surface roughness as the processing reference surface for the processing of the valve seat surface 5 is first performed by precisely processing the valve fixing surface 8 on which the discharge valve is fixed. To secure. The precisely trimmed valve fixing surface 8 is used as a reference surface, and the cutting operation is performed so that the valve seat surface 5 is formed at the same height within the predetermined dimension range with the valve fixing surface 8. .
상기한 바와 같은 본 발명에 의한 밸브내장형 실린더헤드의 가공방법의 작용효과는 밸브고정면(8)과 밸브시이트면(5)이 일정 치수 범위 내에서 동일 높이에 형성되므로 배출밸브를 상기 밸브고정면(8)과 밸브시이트면(5)에 걸쳐 안착 설치하였을 때, 밸브시이트면(5)에 배출밸브가 완전히 밀착되어 이들 사이에 틈새가 형성되지 않도록 된다.The effect of the processing method of the valve-embedded cylinder head according to the present invention as described above is that the valve fixing surface 8 and the valve seat surface 5 are formed at the same height within a predetermined dimension range, so that the discharge valve is fixed to the valve fixing surface. When seated and mounted over (8) and the valve seat surface 5, the discharge valve adheres completely to the valve seat surface 5 so that a gap is not formed between them.
위에서 상세히 설명한 바와 같은 본 발명에 의한 밸브내장형 실린더헤드 제조방법에 의해 제조된 실린더헤드를 사용하여 밸브장치를 구성하게 되면, 배출밸브를 실린더헤드의 요홈내의 밸브고정면과 밸브시이트면에 안착하여 밸브고정면을 고정하였을 때, 밸출밸브와 밸브시이트면의 사이에 틈새가 형성되지 않아 배출밸브를 통한 누설이 방지된다. 이와 같이 배출밸브를 통한 누설이 방지되면 압축행정시에 압축이 확실하게 되고, 피스톤의 흡입행정시에 실린더헤드의 요홈 내에 토축되어 있던 고압의 냉매가스가 실린더내로 역류되는 형상이 발생되어 않아 종래 기술에 의해 제조된 실린더헤드를 사용한 압축기에 비해 체적효율이 현저하게 좋아지는 효과가 있다.When the valve device is configured by using the cylinder head manufactured by the valve-embedded cylinder head manufacturing method according to the present invention as described above, the discharge valve is seated on the valve fixing surface and the valve seat surface in the recess of the cylinder head to When the fixed surface is fixed, no gap is formed between the valve and the valve seat surface, preventing leakage through the discharge valve. When leakage through the discharge valve is prevented as described above, the compression is assured during the compression stroke, and the high pressure refrigerant gas accumulated in the groove of the cylinder head during the stroke stroke of the piston does not occur to flow back into the cylinder. Compared with the compressor using the cylinder head manufactured by the present invention, the volumetric efficiency is remarkably improved.
Claims (1)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950015360A KR0176812B1 (en) | 1995-06-12 | 1995-06-12 | Cylinder head manufacturing method |
| IN391CA1996 IN187266B (en) | 1995-04-20 | 1996-03-04 | |
| CNB001361430A CN1247897C (en) | 1995-04-20 | 1996-03-26 | Sealed compressor |
| CN96102768A CN1077656C (en) | 1995-04-20 | 1996-03-26 | Hermetic type compressor |
| JP7253196A JP2829273B2 (en) | 1995-04-20 | 1996-03-27 | Hermetic compressor |
| US08/631,528 US5676533A (en) | 1995-04-20 | 1996-04-12 | Discharge valve arrangement for a hermetic type compressor |
| US08/699,544 US5775887A (en) | 1995-04-20 | 1996-08-19 | Spacer configuration for a discharge reed valve of a hermetic type compressor |
| US08/699,420 US5779459A (en) | 1995-04-20 | 1996-08-19 | Discharge valve arrangement for a hermetic type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950015360A KR0176812B1 (en) | 1995-06-12 | 1995-06-12 | Cylinder head manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970001967A KR970001967A (en) | 1997-01-24 |
| KR0176812B1 true KR0176812B1 (en) | 1999-10-01 |
Family
ID=19416846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950015360A KR0176812B1 (en) | 1995-04-20 | 1995-06-12 | Cylinder head manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0176812B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456278B1 (en) * | 2001-09-03 | 2004-11-09 | 엄명분 | Manufacturing method of whale type bread |
-
1995
- 1995-06-12 KR KR1019950015360A patent/KR0176812B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970001967A (en) | 1997-01-24 |
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