KR101234621B1 - High - pressure hose of fluid - Google Patents

High - pressure hose of fluid Download PDF

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Publication number
KR101234621B1
KR101234621B1 KR1020060077874A KR20060077874A KR101234621B1 KR 101234621 B1 KR101234621 B1 KR 101234621B1 KR 1020060077874 A KR1020060077874 A KR 1020060077874A KR 20060077874 A KR20060077874 A KR 20060077874A KR 101234621 B1 KR101234621 B1 KR 101234621B1
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South Korea
Prior art keywords
tube
pulsation
absorbing member
fluid
pressure hose
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KR1020060077874A
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Korean (ko)
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KR20080016146A (en
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이선목
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현대자동차주식회사
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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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/26—Hoses, i.e. flexible pipes made of sound-absorbing materials or with sound-absorbing structure
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics

Abstract

본 발명의 목적은 맥동 흡수부재를 2중으로 형성하여 신축이 가능하도록 함으로써, 목표 주파수 대역에서 맥압에 의한 맥동 감쇠가 가능하고, 기어박스측 밸브에 일정한 맥압을 전달하여 품질 산포를 줄일 수 있는 유체용 고압호스를 제공함에 있다.

상기 목적을 실현하기 위하여, 외관을 형성하는 고무튜브와, 튜브 형태로 이루어져 외측으로 흐르던 유체가 내측으로 유입되면서 맥동을 상비할 수 있도록 상기 고무튜브 내측에 배치되어 맥동 흡수부재와, 상기 고무튜브의 양단에 연결되는 금속 튜브로 이루어지되,

상기 맥동 흡수부재는 스파이럴 케이블 형태로 이루어지는 대구경의 제1 튜브와; 스파이럴 케이블 형태로 이루어져 상기 제1 튜브내에 전후 슬라이드 가능하게 배치되는 소구경의 제2 튜브와; 상기 제1 튜브의 하류측단과 상기 제2 튜브의 상류측단 사이에 개재되는 탄성부재를 포함하여 이루어지는 유체용 고압호스를 제공한다.

Figure R1020060077874

고무튜브. 맥동 흡수부재

An object of the present invention is to form a pulsation absorbing member in a double to enable expansion and contraction, it is possible to attenuate the pulsation by the pulsation pressure in the target frequency band, and to deliver a constant pulsation pressure to the gearbox valve for the fluid that can reduce the quality distribution To provide a high pressure hose.

In order to achieve the above object, a rubber tube forming an outer appearance, and the pulsation absorbing member and the rubber tube disposed inside the rubber tube so that the fluid flowing in the form of the tube flows inward and ready to pulsate Consisting of metal tubes connected at both ends,

The pulsation absorbing member includes a large diameter first tube made of a spiral cable; A second tube having a small diameter formed in a spiral cable shape and slidably disposed in the first tube; It provides a high pressure hose for a fluid comprising an elastic member interposed between the downstream end of the first tube and the upstream end of the second tube.

Figure R1020060077874

Rubber tube. Pulsation absorbing member

Description

유체용 고압호스{HIGH - PRESSURE HOSE OF FLUID}High Pressure Hose for Fluids {HIGH-PRESSURE HOSE OF FLUID}

도 1은 본 발명에 의한 고압호스의 단면도.1 is a cross-sectional view of a high pressure hose according to the present invention.

도 2는 본 발명에 의한 고압 호스에 있어서 내부 케이블이 신장된 상태의 단면도.Figure 2 is a cross-sectional view of the inner cable is extended in the high pressure hose according to the present invention.

도 3은 종래 고압 호스의 단면도. 3 is a cross-sectional view of a conventional high pressure hose.

도 4는 고압호스의 내부에 배치되는 스파이럴 케이블의 일실시예도이다.Figure 4 is an embodiment of a spiral cable disposed inside the high pressure hose.

본 발명은 유체용 고압호스에 관한 것으로서, 보다 상세하게는 맥동 흡수부재를 2중으로 형성하여 신축이 가능하도록 함으로써, 목표 주파수 대역에서 맥압에 의한 맥동 감쇠가 가능하고, 기어박스측 밸브에 일정한 맥압을 전달하여 품질 산포를 줄일 수 있는 유체용 고압호스에 관한 것이다.The present invention relates to a high-pressure hose for fluid, and more particularly, by forming a pulsation absorbing member in double to enable the expansion and contraction, it is possible to attenuate the pulsation by the pulsation pressure in the target frequency band, and to provide a constant pulsation pressure to the gearbox valve The present invention relates to a high pressure hose for fluid that can reduce the quality distribution by delivering.

예컨대, 자동차의 파워 스티어링에 적용되는 유압 호스는 파워 스티어링 펌프에서 발생하는 유량 변동이 따른 압력 변동이 배관을 따라 전파하여 발생하는 유체 전파 진동 및 소음을 줄여 주고, 압력 맥동을 감쇠시켜 줄 수 있는 고압 호스를 사용하는 것이 통상적이다.For example, a hydraulic hose applied to a power steering of an automobile is a high pressure that can reduce the fluid propagation vibration and noise generated by the pressure fluctuations due to the flow fluctuations generated by the power steering pump propagates along the pipe, and can attenuate the pressure pulsation. It is common to use hoses.

이러한 고압호스의 종래 기술을 살펴보면, 도 3에서와 같이, 외관을 형성하는 고무튜브(100)와, 상기 고무튜브(100) 내측에 위치하는 맥동 흡수부재(102)로 이루어지며, 상기 고무튜브(100)의 양단은 금속 튜브(104)와 연결되는 구성을 갖는다.Looking at the prior art of such a high pressure hose, as shown in Figure 3, made of a rubber tube 100 to form the appearance, and the pulsation absorbing member 102 located inside the rubber tube 100, the rubber tube ( Both ends of 100 have a configuration that is connected to the metal tube 104.

상기에서 고무튜브(102)는 공지에서와 같이, 내부에 섬유 또는 강철선 망이 매몰된 상태로 이루어져 일정 압력 이상이 걸리지 않는 한 파열되지 않도록 형성된다. The rubber tube 102 is formed so as not to rupture unless it is made of a fiber or steel wire mesh is buried in the state as is known, as long as a predetermined pressure or more is applied.

그리고 상기 맥동 흡수부재(102)는 도 4에서와 같이 띠상의 부재(106)를 나선형으로 감은 스파이럴 케이블 형태로 이루어지되, 그 일측단 즉, 상류측단이 고무튜브(102)와 연결되는 금속튜브(104)와 연결되고, 하류측단은 자유단 형태가 된다.And the pulsation absorbing member 102 is made of a spiral cable wound around the band-like member 106 as shown in Figure 4, the one end, that is, the upstream side of the metal tube that is connected to the rubber tube 102 ( 104), and the downstream end is in the form of a free end.

또한, 상기 맥동 흡수부재(102)를 형성함에 있어서는 띠상의 부재(106)를 나선형으로 감을 때 서로 접하는 부분에 대하여는 막힘이 없도록 감긴 그 상태를 유지토록 한다.In forming the pulsation absorbing member 102, the coil-like member 106 is wound in a spiral manner so as to keep the coiled state from being in close contact with each other.

그리고 띠상의 부재(106)를 평면 그대로 감을 수도 있으나, 도 4에서와 같이, 띠상의 부재(106) 길이방향 중간부에 턱(108)을 두고 2단화하여 나선형으로 감을 때 낮면 외측으로 높은면이 접하도록 한 상태에서 감으면, 균일한 형태로 감기면서 하나의 튜브 형태로 감기게 되는 것이다.And although the band-like member 106 may be wound as it is, as shown in FIG. 4, when the belt-shaped member 106 is wound in two stages with the jaw 108 at the middle portion in the longitudinal direction of the band-shaped member, the outer surface of the band-like member 106 is low. If it is wound in contact with the state, it is wound in a single tube form while winding in a uniform form.

이에 따라 유체가 나선형 튜브로 이루어지는 상기 맥동 흡수부재(102)를 통과하면서 유체의 압력 맥동을 감쇠시키게 되는 것이다.  As a result, the fluid attenuates the pressure pulsation of the fluid while passing through the pulsation absorbing member 102 made of a spiral tube.

그러나 상기와 같은 고압 호스에 있어서는 맥동 흡수부재의 길이가 고정되어 있는 바, 2가지 이상의 영역에서의 압력 맥동 감쇠가 불가능하며, 차량의 운전 상태에 따라 파워 스티어링 펌프의 맥압이 수시로 변할 때 유압계의 입력측인 기어박스내의 밸브에서 압력 변동에 따른 품질 산포가 발생한다는 문제점을 내포하고 있다.However, in the high pressure hose as described above, the length of the pulsation absorbing member is fixed, and it is impossible to attenuate the pressure pulsation in two or more areas, and when the pulsation pressure of the power steering pump changes from time to time according to the driving condition of the vehicle, There is a problem that the quality distribution occurs due to pressure fluctuations in the valve in the gearbox on the input side.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 맥동 흡수부재를 2중으로 형성하여 신축이 가능하도록 함으로써, 목표 주파수 대역에서 맥압에 의한 맥동 감쇠가 가능하고, 기어박스측 밸브에 일정한 맥압을 전달하여 품질 산포를 줄일 수 있는 유체용 고압호스를 제공함에 있다.Therefore, the present invention has been invented to solve the above problems, the object of the present invention is to form a pulsation absorbing member in a double to enable the expansion, pulsation damping by the pulse pressure in the target frequency band is possible, gearbox It is to provide a high pressure hose for the fluid that can reduce the quality distribution by delivering a constant pulse pressure to the side valve.

이를 실현하기 위하여 본 발명은, 외관을 형성하는 고무튜브와, 튜브 형태로 이루어져 외측으로 흐르던 유체가 내측으로 유입되면서 맥동을 상비할 수 있도록 상기 고무튜브 내측에 배치되어 맥동 흡수부재와, 상기 고무튜브의 양단에 연결되는 금속 튜브로 이루어지되, In order to realize this, the present invention, the rubber tube and the tube forming the appearance, the fluid flowing in the outside flows into the inner side is arranged inside the rubber tube so as to be ready to pulsation, the pulsation absorbing member, and the rubber tube It consists of a metal tube connected to both ends of the

상기 맥동 흡수부재는 스파이럴 케이블 형태로 이루어지는 대구경의 제1 튜브와; 스파이럴 케이블 형태로 이루어져 상기 제1 튜브내에 전후 슬라이드 가능하게 배치되는 소구경의 제2 튜브와; 상기 제1 튜브의 하류측단과 상기 제2 튜브의 상류측단 사이에 개재되는 탄성부재를 포함하여 이루어지는 유체용 고압호스를 제공한다.The pulsation absorbing member includes a large diameter first tube made of a spiral cable; A second tube having a small diameter formed in a spiral cable shape and slidably disposed in the first tube; It provides a high pressure hose for a fluid comprising an elastic member interposed between the downstream end of the first tube and the upstream end of the second tube.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1은 본 발명에 의한 고압호스의 단면도로서, 부호 2은 고압호스를 지칭한다.1 is a cross-sectional view of a high pressure hose according to the present invention, 2 denotes a high pressure hose.

상기 고압호스(2)는 외관을 형성하는 고무튜브(4)와, 상기 고무튜브(4) 내측에 위치하는 맥동 흡수부재(6)로 이루어지며, 상기 고무튜브(4)의 양단은 금속 튜브(8)와 연결되는 구성을 갖는다.The high pressure hose (2) is composed of a rubber tube (4) forming the appearance and the pulsation absorbing member (6) located inside the rubber tube (4), both ends of the rubber tube (4) is a metal tube ( 8) is connected to the configuration.

상기에서 고무튜브(4)는 공지에서와 같이, 내부에 섬유 또는 강철선 망이 매몰된 상태로 이루어져 일정 압력 이상이 걸리지 않는 한 파열되지 않도록 형성된다. In the above, the rubber tube 4 is formed so as not to rupture unless a predetermined pressure or more is made in a state in which a fiber or steel wire net is buried therein, as is known in the art.

그리고 상기 맥동 흡수부재(6)는 종래에서 설명한 바와 같이, 띠상의 부재를 나선형으로 감은 스파이럴 케이블 형태로 이루어지되, 대구경의 제1 튜브(10)와, 상기 제1 튜브(10)내에 전후 슬라이드 가능하게 배치되는 소구경의 제2 튜브(12)로 이루어진다.As described above, the pulsation absorbing member 6 is formed in the form of a spiral cable wound around a band-like member, and can be slid back and forth within the large-diameter first tube 10 and the first tube 10. It consists of a small diameter of the second tube 12 is disposed.

상기에서 제1 튜브(10)는 그 일측단 즉, 상류측단이 고무튜브(2)와 연결되는 금속튜브(6)와 연결되고, 하류측단은 자유단 형태가 되는데, 그 단부의 내경부에는 둘레턱으로 이루어지는 스톱퍼(14)가 형성된다.In the above, the first tube 10 is connected to the metal tube 6 whose one end, that is, the upstream end thereof, is connected to the rubber tube 2, and the downstream end thereof has a free end shape. A stopper 14 made of a jaw is formed.

그리고 상기 제2 튜브(12)는 상류측단에서 외경부로 돌출되어 외주면이 상기 제1튜브의 내경부와 미끄럼 접촉이 이루어지는 피스톤(16) 사이에 탄성부재(18)가 배치되고 하류측단은 자유단의 형태가 된다.In addition, the second tube 12 protrudes from the upstream end to the outer diameter part such that an elastic member 18 is disposed between the piston 16 whose outer peripheral surface is in sliding contact with the inner diameter part of the first tube. Form.

상기 탄성부재(18)는 압축 코일 스프링으로 이루어져 항시 제2 튜브(12)가 제1 튜브(10)내로 삽입될 수 있도록 탄성력을 발휘하게 된다,The elastic member 18 is made of a compression coil spring to exert an elastic force so that the second tube 12 can be inserted into the first tube 10 at all times.

상기와 같이 이루어지는 본 발명의 고압호스(2)는 적용하게 되면, 파워 스티어링 펌프로부터 오일이 유입되면 이의 오일 압이 제2 튜브(12)의 스톱퍼(16)에 작동함으로써, 제2 튜브(12)를 하류측으로 밀어내려는 힘으로 작용하게 된다.When the high pressure hose 2 of the present invention made as described above is applied, when oil is introduced from the power steering pump, the oil pressure thereof is actuated on the stopper 16 of the second tube 12, so that the second tube 12 is applied. It acts as a force to push the downstream side.

이때 오일압이 탄성부재(18)의 탄성력 보다 큰 경우에는 제2 튜브(12)가 하류측으로 밀리면서 맥동 흡수부재(6)의 전체적인 길이가 길어짐으로써, 목표 주파수 대역에서 맥압에 의한 맥동을 감쇠시킬 수 있게 된다.At this time, when the oil pressure is greater than the elastic force of the elastic member 18, the second tube 12 is pushed downstream and the overall length of the pulsation absorbing member 6 becomes long, thereby attenuating the pulsation caused by the pulse pressure in the target frequency band. It becomes possible.

그리고 펌프측 압력 맥동 변화에 대하여 맥동 흡수부재(6)의 전체 길이가 변화함에 따라 기어박스측 밸브에 일정한 맥압을 전달함으로써, 품질 산포를 줄일 수 있게 된다.And as the overall length of the pulsation absorbing member 6 changes with respect to the pump side pressure pulsation change, by delivering a constant pulsation pressure to the gearbox side valve, the quality distribution can be reduced.

상기와 같은 작용 효과를 얻기 위해서는 탄성부재의 강성은 엔진별, 차종별 튜닝하고자 하는 목표 주파수 대역으로 설정하되, 스프링에 걸리는 최대압은 펌프측의 최대 압력으로 설정하며, 제1,2 튜브(10)(12)는 연비를 고려하여 직경의 80%내로 정하는 것이 바람직하다.In order to obtain the above effects, the rigidity of the elastic member is set to a target frequency band to be tuned for each engine and vehicle type, and the maximum pressure applied to the spring is set to the maximum pressure at the pump side, and the first and second tubes 10 are provided. (12) is preferably set within 80% of the diameter in consideration of fuel efficiency.

상기와 같은 본 발명의 고압 호스(2)는 파워 스티어링에 한정되어 사용되는 것은 아니며, 고압 유체를 이용하는 곳이면 어느 분야든 사용할 수 있음은 물론이다. The high pressure hose 2 of the present invention as described above is not limited to power steering, and may be used in any field as long as it uses a high pressure fluid.

이상에서와 같이 본 발명에 의하면, 맥동 흡수부재를 2중으로 형성하여 신축 이 가능하도록 함으로써, 목표 주파수 대역에서 맥압에 의한 맥동 감쇠가 가능하고, 기어박스측 밸브에 일정한 맥압을 전달하여 품질 산포를 줄일 수 있는 발명인 것이다.As described above, according to the present invention, by forming a pulsation absorbing member in a double to enable the expansion and contraction, pulsation attenuation by the pulsation pressure is possible in the target frequency band, and a constant pulse pressure is transmitted to the gearbox side valve to reduce the quality distribution. It is an invention that can be.

Claims (2)

외관을 형성하는 고무튜브와, 튜브 형태로 이루어져 외측으로 흐르던 유체가 내측으로 유입되면서 맥동을 상비할 수 있도록 상기 고무튜브 내측에 배치되어 맥동 흡수부재와, 상기 고무튜브의 양단에 연결되는 금속 튜브로 이루어지되, A rubber tube forming an appearance, and a tube formed in the form of a tube so that the fluid flowing outwards to the inside and ready to pulsate the pulsation absorbing member and a metal tube connected to both ends of the rubber tube It's done, 상기 맥동 흡수부재는 스파이럴 케이블 형태로 이루어지는 대구경의 제1 튜브와; 스파이럴 케이블 형태로 이루어져 상기 제1 튜브내에 전후 슬라이드 가능하게 배치되는 소구경의 제2 튜브와; 상기 제1 튜브의 하류측단과 상기 제2 튜브의 상류측단 사이에 개재되는 탄성부재를 포함하며, The pulsation absorbing member includes a large diameter first tube made of a spiral cable; A second tube having a small diameter formed in a spiral cable shape and slidably disposed in the first tube; An elastic member interposed between the downstream end of the first tube and the upstream end of the second tube, 상기 탄성부재는 압축 코일 스프링으로서, 제1 튜브의 하류측단 내경부에 둘러턱으로 이루어지는 스톱퍼와, 제2 튜브는 상류측단에서 외경부로 돌출되어 외주면이 상기 제1튜브의 내경부와 미끄럼 접촉이 이루어지는 피스톤 사이에 배치됨을 특징으로 하는 유체용 고압호스.The elastic member is a compression coil spring, a stopper formed of an inner diameter portion of the downstream end of the first tube, and a second tube protruding from the upstream side to the outer diameter so that the outer circumferential surface is in sliding contact with the inner diameter of the first tube. High pressure hose for fluid, characterized in that disposed between the piston. 삭제delete
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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS59152118U (en) 1983-03-31 1984-10-12 日産ディーゼル工業株式会社 Exhaust silencer for engine
JPS60183224U (en) 1984-05-15 1985-12-05 カルソニックカンセイ株式会社 exhaust tail pipe
JP2001182889A (en) * 1999-12-24 2001-07-06 Hyundai Motor Co Ltd High pressure hose for fluid
KR20040051625A (en) * 2002-12-11 2004-06-19 현대자동차주식회사 Variable exhaust pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152118U (en) 1983-03-31 1984-10-12 日産ディーゼル工業株式会社 Exhaust silencer for engine
JPS60183224U (en) 1984-05-15 1985-12-05 カルソニックカンセイ株式会社 exhaust tail pipe
JP2001182889A (en) * 1999-12-24 2001-07-06 Hyundai Motor Co Ltd High pressure hose for fluid
KR20040051625A (en) * 2002-12-11 2004-06-19 현대자동차주식회사 Variable exhaust pipe

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