KR19990044915A - Pipe joint - Google Patents
Pipe joint Download PDFInfo
- Publication number
- KR19990044915A KR19990044915A KR1019980045633A KR19980045633A KR19990044915A KR 19990044915 A KR19990044915 A KR 19990044915A KR 1019980045633 A KR1019980045633 A KR 1019980045633A KR 19980045633 A KR19980045633 A KR 19980045633A KR 19990044915 A KR19990044915 A KR 19990044915A
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- KR
- South Korea
- Prior art keywords
- nut
- nipple
- pipe
- tightening
- pipe joint
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Joints With Pressure Members (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
넛트의 조임토오크가 커진 경우에 있어서도 파이프 및 닛플의 변형을 억제하여 파이프에 의한 유로의 저항증가를 방지함과 동시에 씨일성능이 저하되는 것을 예방할 수 있는 관이음부를 제공하는 것을 과제로 한다.Even when the tightening torque of a nut becomes large, it is a subject to provide the pipe joint part which can suppress the deformation of a pipe and a nipple, prevent the increase of the resistance of a flow path by a pipe, and at the same time prevent the fall of a seal performance.
이를 해결하기 위해 파이프(3)의 선단근방에 팽출형성한 계지면(5)과 넛트(6)의 조임면(7) 사이에 개재시킨 닛플(8)의 외경과 대략 동일지름의 구속부(10)를 넛트(6)의 안쪽부에 형성하고, 이 구속부(10)에 있어서 닛플(8)의 외주면을 넛트(6)의 내주면에 감합시켜 넛트(6)의 조임토오크가 너무 커진 경우에 발생될 염려가 있는 닛플(8)의 변형을 억제하도록 했다.In order to solve this problem, the restraint portion 10 having a diameter approximately equal to the outer diameter of the nipple 8 interposed between the clamping surface 5 swelled near the distal end of the pipe 3 and the tightening surface 7 of the nut 6 is provided. ) Is formed inside the nut 6, the outer peripheral surface of the nipple 8 is fitted to the inner circumferential surface of the nut 6 in the restraint part 10, and the tightening torque of the nut 6 is too large. The deformation | transformation of the nipple 8 which might become a possibility was suppressed.
Description
본 발명은 관이음부에 관하며 특히 고압배선용 파이프의 접속에 적합한 관이음부에 관한 것이다.The present invention relates to pipe fittings and in particular to pipe fittings suitable for the connection of high pressure wiring pipes.
예를들면 디젤엔진의 인젝션 파이프와 같은 고압배선용 관이음부의 종래예에서는 도 5와 같이 상대측부재(1)에 형성한 씨일면(2)에 밀접한 씨일면(4)과 선단에 형성한 파이프(3)의 선단부를 브릿지 플레어가공하여 상기 씨일면(4)과 계지면(5)을 형성하고 있다. 그리고 상기 파이프(3)에 끼워부착한 넛트(6)안쪽부에 이 파이프(3)의 축방향과 직교하도록 조임면(7)을 형성하고, 넛트(6)에 수용한 닛플(8)을 통해 상기 계지면(4)과 조임면(7)을 접촉시킴으로써 넛트(6)를 상대측부재(1)쪽으로 조여 상기 양 씨일면(2)(4)을 밀접유지시키도록 한 것이 있다.For example, in the conventional example of a high-pressure wiring pipe joint such as an injection pipe of a diesel engine, as illustrated in FIG. 5, the seal surface 4 and the pipe formed at the tip thereof are in close contact with the seal surface 2 formed on the mating member 1. Bridge flare processing of the tip of 3) forms the seal surface 4 and the gauge surface 5. Then, a fastening surface 7 is formed in the inner side of the nut 6 attached to the pipe 3 so as to be orthogonal to the axial direction of the pipe 3, and through the nipple 8 housed in the nut 6. The nut 6 is tightened toward the mating member 1 by bringing the locking surface 4 into contact with the tightening surface 7 so as to hold the both seal surfaces 2 and 4 closely.
이와같은 관이음부에 있어서는 파이프(3) 자체에 씨일면(4)을 형성하고 있기 때문에 예를들면 닛플을 파이프의 선단에 납땜한 것과 비교하여 액이 스며들 위험성이 적다는 이점을 가지고 있다.In such a pipe joint, since the seal surface 4 is formed in the pipe 3 itself, it has the advantage that there is less risk of liquid seepage compared with, for example, soldering the nipple to the end of the pipe.
또 종래는 나사의 가공공정의 관계에서 닛플(8)을 수용하는 넛트(6)의 안쪽부의 내경을 나사부 및 닛플(8)의 외경보다 크게했었다. 이 때문에 닛플(8)의 외주면과 넛트(6)의 내주면 사이에 링모양의 간극(9)이 형성되었다.Moreover, in the past, the inner diameter of the inner part of the nut 6 which accommodates the nipple 8 was made larger than the outer diameter of the threaded part and the nipple 8 in relation to the process of screw processing. For this reason, a ring-shaped gap 9 was formed between the outer circumferential surface of the nipple 8 and the inner circumferential surface of the nut 6.
따라서 넛트(6)를 소정의 토오크로 조인 상태에서는 특별한 문제는 일어나지 않지만 넛트(6)의 조임토오크가 너무 커진 경우에는 도 6에 도시한 것과 같이 계지면(5)과 닛플(8) 사이에 발생하는 쐐기작용으로 닛플(8)이 확장되어 파손됨과 동시에 파이프(3)의 선단부를 크게 변형시켜 그 내면의 원활성을 잃기 때문에 파이프(3)에 의한 유로의 저항이 증가하고, 극단적인 경우는 변형된 닛플(8)이 튀어나와 조임면(7)까지 변형되어 원하는 조임력을 얻을 수 없기 때문에 상대측 부재(1)의 씨일면(2)과 파이프(3)의 씨일면(4) 사이의 씨일성능이 저하될 가능성이 있었다.Therefore, no particular problem occurs when the nut 6 is tightened to a predetermined torque, but when the tightening torque of the nut 6 is too large, it occurs between the gauge surface 5 and the nipple 8 as shown in FIG. The wedge action causes the nipple (8) to expand and break, and at the same time, the front end of the pipe (3) is greatly deformed and the smoothness of its inner surface is lost. Therefore, the resistance of the flow path by the pipe (3) increases, and in extreme cases, the deformation of the nipple (8). Since the nipple (8) is protruded and deformed to the tightening surface (7) to obtain a desired tightening force, the sealing performance between the seal surface (2) of the mating member (1) and the seal surface (4) of the pipe (3) is reduced. There was a possibility of deterioration.
본 발명은 상기 실정에 비추어 행해진 것으로 넛트의 조임토오크가 커진 경우에 있어서도 파이프 및 닛플의 변형을 억제하여 파이프에 의한 유로의 저항증가를 방지함과 동시에 씨일성능이 저하되는 것을 예방할 수 있는 관이음부를 제공하는 것을 과제로 하고 있다.The present invention has been made in view of the above situation, and even in the case where the tightening torque of the nut is increased, the pipe joint can prevent the increase in resistance of the flow path caused by the pipe and prevent the degradation of the seal performance while preventing the deformation of the pipe and the nipple. The task is to provide.
상기 과제를 해결하기 위해 본 발명은 상대측 부재의 씨일면에 밀접하는 씨일면을 선단에 형성한 선단근방에 계지면을 팽출형성시키고, 상기 파이프에 끼워부착한 넛트의 안쪽부에 파이프의 축방향과 직교하도록 형성된 조임면과 상기 계지면을 넛트에 수용한 닛플을 통해 접촉시키는 것으로 넛트를 상대측 부재쪽으로 조여 상기 양 씨일면을 밀접유지시키도록 한 관이음부에 있어서, 상기 닛플의 외경과 대략 동일한 내경의 구속부를 넛트의 안쪽부에 형성하고 있다. 그리고 이 구속부에서 닛플의 외주면을 넛트의 내주면에 감합시킨 것을 특징으로 하고 있다.In order to solve the above problems, the present invention swells the gage surface in the vicinity of the tip formed with the seal surface close to the seal surface of the mating member at the tip, and the axial direction of the pipe and the inner portion of the nut attached to the pipe. An inner diameter approximately equal to the outer diameter of the nipple in a pipe joint portion in which the tightening surface formed to be orthogonal and the grating surface are brought into contact with each other through a nipple accommodated in the nut to tighten the nut toward the mating member so as to hold the both seal surfaces closely. Is formed in the inner part of the nut. And this restraint part is characterized by fitting the outer peripheral surface of the nipple to the inner peripheral surface of the nut.
도 1은 본 발명에 관한 관이음부의 제 1실시예를 도시하는 종단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing a first embodiment of a pipe joint according to the present invention.
도 2는 도 1에 도시한 관이음부의 넛트의 조임토오크가 너무 커진 경우의 상태를 도시하는 종단면도.FIG. 2 is a longitudinal sectional view showing a state where the tightening torque of the nut of the pipe joint shown in FIG. 1 is too large. FIG.
도 3은 본 발명에 관한 관이음부의 제2실시예를 도시하는 종단면도.3 is a longitudinal sectional view showing a second embodiment of the pipe joint according to the present invention;
도 4는 본 발명에 관한 관이음부의 제 3실시예를 도시하는 종단면도.4 is a longitudinal sectional view showing a third embodiment of the pipe joint according to the present invention;
도 5는 관이음부의 종래예를 도시하는 종단면도.5 is a longitudinal sectional view showing a conventional example of a pipe joint;
도 6은 도 5에 도시한 관이음부의 넛트의 조임토오크가 너무 커진 경우의 상태를 도시하는 종단면도.6 is a longitudinal cross-sectional view showing a state where the tightening torque of the nut of the pipe joint shown in FIG. 5 is too large.
※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※
1: 상대측 부재 2: 씨일면1: Opposing member 2: Sea side
3: 파이프 4: 씨일면3: pipe 4: seed
5: 계지면 6: 넛트5: hanging 6: nut
7: 조임면 8: 닛플7: tightening surface 8: nipple
9: 도피부 10: 구속부9: Refuge 10: Restraint
11: 도피부11: skin
다음은 본 발명의 실시예를 도면을 기초로 상세히 설명한다. 도 1은 본 발명에 관한 관이음부의 제 1실시예를 도시하는 종단면도이다. 또 도 5 및 도 6에 도시한 종래예와 동일 기능을 갖는 부분에 동일부호를 붙여 그 상세한 설명을 생략한다.The following describes an embodiment of the present invention in detail based on the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing a first embodiment of a pipe joint according to the present invention. In addition, the same code | symbol is attached | subjected to the part which has the same function as the conventional example shown in FIG. 5, and 6, and the detailed description is abbreviate | omitted.
도 1에 있어서, 파이프(3)의 선단부를 브릿지 플레어가공함에 따라 상대측부재(1)에 형성한 씨일면(2)에 밀접하여 씨일면(4)과 계지면(5)을 형성하고 있다. 그리고 상기 파이프(3)에 끼워부착한 넛트(6)의 안쪽부에 이 파이프(3)의 축방향과 직교하도록 조임면(7)을 형성한 후 넛트(6)에 수용한 닛플(8)을 통해 상기 계지면(5)과 조임면(7)을 접촉시킴으로써 넛트(6)를 상대측 부재(1)쪽으로 조여 상기 양 씨일면(2)(4)을 밀접유지시키도록 하고 있다.In FIG. 1, the seal surface 4 and the locking surface 5 are formed in close contact with the seal surface 2 formed in the mating side member 1 by the bridge flare processing of the tip part of the pipe 3. The nipple 8 housed in the nut 6 is formed after the tightening surface 7 is formed on the inner side of the nut 6 attached to the pipe 3 so as to be orthogonal to the axial direction of the pipe 3. The nut 6 is tightened toward the mating member 1 by bringing the clamping surface 5 into contact with the tightening surface 7 so as to hold the both seal surfaces 2 and 4 closely.
이러한 구성이 되는 관이음부에 있어서 본 실시예에서는 닛플(8)을 수용하는 넛트(6) 안쪽부의 내경을 조임면(7)에서 닛플(8)두께에 상당하는 치수만큼 닛플(8)의 외경과 대략 동일하게 설정하여 구속부(10)를 구성하는 것으로, 이 구속부(10)에 있어서 닛플(8)의 외주면을 넛트(6)의 내주면에 감합시키고 있다.In this embodiment, the inner diameter of the inner portion of the nut 6 accommodating the nipple 8 is the outer diameter of the nipple 8 by a size corresponding to the thickness of the nipple 8 on the tightening surface 7. The restraint part 10 is set in substantially the same manner as in the above, and the outer peripheral face of the nipple 8 is fitted to the inner peripheral face of the nut 6 in the restraint part 10.
따라서 넛트(6)의 조임과 함께 계지면(5)과 닛플(8)사이에 발생하는 쐐기작용으로 닛플(8)이 확장되려고 해도 구속부(10)의 유지작용으로 닛플(8)의 변형이 억제된다. 이 때문에 넛트(6)의 조임토오크가 너무 커진 경우에 있어서도 도 2에 도시한 것과 같이 닛플(8)이 상대측 부재(1)에 근접하여 파이프(3)선단부의 브릿지 플레어 가공을 약간 변형시키지만 파이프(3)내면의 원활성은 손상되지 않기 때문에 이 파이프(3)에 의한 유로의 저항이 증대하는 경우가 없다.Therefore, even if the nipple 8 is attempted to expand due to the wedge action between the clamping surface 5 and the nipple 8 together with the tightening of the nut 6, the deformation of the nipple 8 is caused by the holding action of the restraint part 10. Suppressed. Therefore, even when the tightening torque of the nut 6 becomes too large, as shown in FIG. 2, the nipple 8 approaches the mating member 1 and slightly deforms the bridge flare processing at the tip of the pipe 3, but the pipe ( 3) Since the smoothness of the inner surface is not impaired, the resistance of the flow path by this pipe 3 does not increase.
또 구속부(10)에 있어 넛트(6)와의 감합작용으로 닛플(8)의 변형이 예방된다. 따라서 상대측 부재(1)의 씨일면(2)과 파이프(3)의 씨일면(4) 사이의 씨일성능이 유지된다.In addition, deformation of the nipple 8 is prevented by the fitting action with the nut 6 in the restraint part 10. Therefore, the seal performance between the seal surface 2 of the mating member 1 and the seal surface 4 of the pipe 3 is maintained.
상기 실시예에 있어서는 넛트(6)의 안쪽부에 닛플(8)수용부의 전체 내경을 이 닛플(8)의 외경과 대략 동일하게 하여 닛플(8)의 변형방지효과를 얻도록 하고 있지만 넛트(6) 및 닛플(8)의 변형을 보다 효과적으로 억제하기 위해서는 넛트(6) 및 닛플(8)의 두께압을 크게할 수도 있다. 또한 구속부(10)의 구성은 제 1실시예에 도시한 것에 한정되는 것은 아니다.In the above embodiment, the inner diameter of the nipples 8 receiving portion on the inner side of the nut 6 is approximately equal to the outer diameter of the nipples 8 to obtain the effect of preventing deformation of the nipples 8, but the nut 6 In order to more effectively suppress deformation of the nipple and the nipple 8, the thickness pressure of the nut 6 and the nipple 8 may be increased. In addition, the structure of the restraint part 10 is not limited to what was shown in 1st Example.
즉 도 3은 본 발명에 관한 관이음부의 제 2실시예를 도시하는 종단면도이다. 본 실시예에 있어서는 닛플(8)의 두께보다 얇은 구속부(10)를 넛트(6)의 안쪽단에 형성함과 동시에 넛트(6)의 나사산 내경을 닛플(8)의 외경과 일치시켜 나사산에 구속부로서의 기능을 분담시키도록 하고 있다.3 is a longitudinal sectional view showing the second embodiment of the pipe joint according to the present invention. In the present embodiment, the restraint portion 10 thinner than the thickness of the nipple 8 is formed at the inner end of the nut 6 and the thread inner diameter of the nut 6 coincides with the outer diameter of the nipple 8 so that It is intended to share the function as a restraint part.
따라서 본 실시예와 같이 넛트(6)의 안쪽부에 형성된 구속부(10)의 길이를 닛플(8)의 두께보다 얇게하여 나사산의 내단부와 공동으로 닛플(8)의 변형억제효과를 얻도록 한 경우는 상기 제 1실시예에 대비하여 나사산의 유효길이를 크게할 수 있는 이점이 있다.Therefore, as in the present embodiment, the length of the restraint portion 10 formed in the inner portion of the nut 6 is made thinner than the thickness of the nipple 8 so as to obtain the deformation suppression effect of the nipple 8 jointly with the inner end of the thread. In one case, there is an advantage that the effective length of the screw thread can be increased in comparison with the first embodiment.
또 도 4는 본 발명에 관한 관이음부의 제 3실시예를 도시하는 종단면도이다. 본 실시예에 있어서는 닛플(8)의 두께에 대비하여 얇은 범위내에 있어서, 넛트(6)의 내경을 닛플(8)의 외경보다도 크게하여 도피부(11)를 마련하고 있다. 그리고 넛트(6)의 나사산의 내경을 닛플(8)의 외경과 대략 동일하게 함으로써 이 나사산의 안쪽부를 닛플(8)에 감합시켜 구속부로서의 기능을 하도록 한다.4 is a longitudinal sectional view showing the third embodiment of the pipe joint according to the present invention. In the present embodiment, the inside portion of the nut 6 is made larger than the outer diameter of the nipple 8 so as to provide a cover 11 in a thin range in comparison to the thickness of the nipple 8. The inner diameter of the thread of the nut 6 is approximately equal to the outer diameter of the nipple 8 so that the inner part of the thread is fitted to the nipple 8 so as to function as a restraint part.
따라서 본 실시예에 의한 경우는 넛트(6)의 나사산이 닛플(8)에 대해 변형억제효과를 발휘하기 때문에 상기 양 실시예에 도시한 것과 마찬가지로 조임토오크가 너무커진 경우에 발생될 염려가 있는 닛플(8)의 변형이 방지된다. 또 본 실시예에 도시한 것처럼 넛트(6)의 안쪽부에 도피부(11)를 마련한 경우는 효율적인 전조(轉造)가공으로 넛트의 나사산을 구성할 수 있기 때문에 넛트(6)의 제조원가가 상승되는 것을 피할 수 있다는 이점이 있다.Therefore, in the case of the present embodiment, since the thread of the nut 6 exerts a strain inhibiting effect on the nipple 8, a nipple that may be generated when the tightening torque becomes too large as shown in the above embodiments. Deformation of (8) is prevented. In addition, as shown in the present embodiment, when the escape portion 11 is provided on the inner side of the nut 6, the thread of the nut can be formed by efficient rolling, so that the manufacturing cost of the nut 6 is increased. The advantage is that it can be avoided.
또한 상기 실시예에 있어서는 모두 파이프(3)의 선단을 브릿지 플레어 가공하여 씨일면(4)과 계지면(5)을 형성하는 것으로 넛트(6)의 조임토오크가 너무 커진 경우에 있어서도 브릿지 플레어 가공부의 변형작용으로 안정된 씨일효과를 얻도록 하고 있지만 파이프(3)의 선단을 싱글 플레어 가공하거나 또는 더블 플레어가공하여 씨일면(4) 및 계지면(5)을 형성한 것이라도 좋다.In addition, in the above embodiment, the bridge flare processing portion is formed even when the tightening torque of the nut 6 is too large by forming the seal surface 4 and the locking surface 5 by forming the seal surface 4 and the engaging surface 5 by the bridge flaring process of the pipe 3. Although a stable sealing effect is obtained by the deformation action, the front end of the pipe 3 may be single flared or double flared to form the seal face 4 and the gauge face 5.
이상 설명에서 명백한 것과 같이 본 발명은 넛트에 형성한 구속부를 닛플에 감합시키도록 한 것이므로 넛트의 조임토오크가 너무 커진 경우에도 닛플이 변형되지 않고 파이프 선단부의 변형이 억제됨과 동시에 파이프의 상대측 부재 사이의 씨일(seal)성능을 손상시키는 경우가 없다.As apparent from the above description, the present invention is to fit the restraint formed in the nut to the nipple, so that even if the tightening torque of the nut is too large, the nipple is not deformed, the deformation of the pipe end is suppressed and at the same time between the pipe members. There is no compromise on seal performance.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32526197A JP3492503B2 (en) | 1997-11-11 | 1997-11-11 | Pipe fittings |
| JP97-325261 | 1997-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990044915A true KR19990044915A (en) | 1999-06-25 |
| KR100322637B1 KR100322637B1 (en) | 2002-06-24 |
Family
ID=18174846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980045633A KR100322637B1 (en) | 1997-11-11 | 1998-10-29 | Pipe joint |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3492503B2 (en) |
| KR (1) | KR100322637B1 (en) |
| CN (1) | CN1087062C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020044596A (en) * | 2000-12-06 | 2002-06-19 | 이계안 | Fuel pump and pipe combination apparatus for diesel engine |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1101931B1 (en) * | 1999-11-19 | 2006-08-30 | CRT Common Rail Technologies AG | High pressure common rail injection system |
| FR2836701B1 (en) * | 2002-03-01 | 2006-12-22 | Renault | DEVICE FOR MOUNTING A FUEL INJECTION PIPE |
| JP4498693B2 (en) * | 2003-06-20 | 2010-07-07 | 臼井国際産業株式会社 | High pressure fuel injection pipe |
| JP4075838B2 (en) * | 2003-06-27 | 2008-04-16 | 株式会社デンソー | Piping joint device |
| DE102005047275B4 (en) * | 2005-10-01 | 2018-12-13 | Man Diesel & Turbo Se | Pressure tube with deformed connection head |
| DE102006037945A1 (en) * | 2006-08-12 | 2008-02-14 | Man Diesel Se | Assembly device e.g. for high pressure fuel line, has screw nut, external thread and female thread but with different slopes provided in same rotary direction |
| KR101168591B1 (en) | 2010-08-11 | 2012-07-30 | 황병찬 | Pulsation Dampener with Disk Spring |
| JP5968427B2 (en) | 2012-04-02 | 2016-08-10 | 三菱電機株式会社 | Pipe joint, air conditioner, connection pipe, and connection method |
| CN103267187B (en) * | 2013-05-10 | 2015-04-29 | 西安航空动力股份有限公司 | Fuel manifold spherical joint and tester quick connector |
| CN103967667A (en) * | 2014-04-16 | 2014-08-06 | 中国北方发动机研究所(天津) | High-pressure fuel pipe turning-connection piece |
| CN106641501A (en) * | 2016-11-28 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipe connection hoop |
| CN106396065A (en) * | 2016-12-08 | 2017-02-15 | 青岛云峰环保科技有限公司 | Adding system for flocculating agent and adding method thereof |
| FR3122456A1 (en) * | 2021-04-29 | 2022-11-04 | Duncha France | Fuel supply device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277982A (en) * | 1995-04-04 | 1996-10-22 | Kyoei Sangyo Kk | Flareless type pipe joint |
-
1997
- 1997-11-11 JP JP32526197A patent/JP3492503B2/en not_active Expired - Fee Related
-
1998
- 1998-10-16 CN CN98121359A patent/CN1087062C/en not_active Expired - Fee Related
- 1998-10-29 KR KR1019980045633A patent/KR100322637B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020044596A (en) * | 2000-12-06 | 2002-06-19 | 이계안 | Fuel pump and pipe combination apparatus for diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3492503B2 (en) | 2004-02-03 |
| KR100322637B1 (en) | 2002-06-24 |
| JPH11141759A (en) | 1999-05-28 |
| CN1217426A (en) | 1999-05-26 |
| CN1087062C (en) | 2002-07-03 |
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