KR20120024494A - Piston pump with a outlet - Google Patents

Piston pump with a outlet Download PDF

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Publication number
KR20120024494A
KR20120024494A KR1020110088779A KR20110088779A KR20120024494A KR 20120024494 A KR20120024494 A KR 20120024494A KR 1020110088779 A KR1020110088779 A KR 1020110088779A KR 20110088779 A KR20110088779 A KR 20110088779A KR 20120024494 A KR20120024494 A KR 20120024494A
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KR
South Korea
Prior art keywords
discharge
piston pump
section
line
damping member
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KR1020110088779A
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Korean (ko)
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KR101910917B1 (en
Inventor
올리버 게르트너
마르크 찜머만
올리버 헤닉
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로베르트 보쉬 게엠베하
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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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031—Pump units characterised by their construction or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4068—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system the additional fluid circuit comprising means for attenuating pressure pulsations
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0091—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using a special shape of fluid pass, e.g. throttles, ducts
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • F04B53/1017—Semi-spherical ball 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: A piston pump having a discharging part is provided to improve the properties of a piston pump by uniformly discharging and transferring fluid in various output ranges. CONSTITUTION: A piston pump(10) having an discharging part comprises a discharging opening(16), and an discharging part(18) for discharge fluid. The discharging opening for the discharge fluid is installed to be selectively closed by a closing body(26). The discharging part for the discharge fluid is installed behind the discharging opening toward a flow direction. The discharging part for the discharge fluid is formed with a damping member(44) for the discharge fluid. The closing body is formed with a line section(36). The closing body is formed by a hemisphere section(32) and shaft section(28). The closing body is guided by a guide section(24), thereby moving.

Description

배출부를 가진 피스톤 펌프{Piston pump with a outlet}Piston pump with a outlet

본 발명은 폐쇄체에 의해 선택적으로 폐쇄될 수 있는, 배출 유체, 특히 브레이크액을 위한 배출 개구 및 유동 방향으로 후속하는, 배출 유체를 위한 배출부를 가진 유압식 차량 브레이크 시스템용 피스톤 펌프에 관한 것이다. The present invention relates to a piston pump for a hydraulic vehicle brake system having a discharge opening for the discharge fluid, in particular a brake fluid, and a discharge section for the discharge fluid, which can be selectively closed by a closure.

상기와 같은 피스톤 펌프는 예컨대 DE 199 28 913 A1호에 공개되어 있다. 상기 피스톤 펌프는 펌프 하우징을 포함하고, 상기 펌프 하우징 내에서 펌프 부재인 펌프 피스톤이 이동 가능하게 지지된다. 펌프 피스톤은 배출 개구 및 후속하는 배출부를 통해 유체를 피스톤 펌프로부터 밖으로 이송한다. 배출 개구는 폐쇄체에 의해 선택적으로 폐쇄될 수 있으므로 배출 밸브의 기능이 달성된다. Such piston pumps are for example disclosed in DE 199 28 913 A1. The piston pump includes a pump housing in which a pump piston, which is a pump member, is movably supported. The pump piston delivers the fluid out of the piston pump through the discharge opening and subsequent discharge. The discharge opening can be selectively closed by a closure so that the function of the discharge valve is achieved.

예컨대 DE 42 26 646 A1호에 설명된 바와 같이, 상기와 같은 피스톤 펌프 후방에 일반적으로 댐퍼 챔버 및 스로틀이 유압식으로 접속되고, 이들은 펌프 하우징 내에 피스톤 펌프와 별도로 배치된다.  As described for example in DE 42 26 646 A1, damper chambers and throttles are generally hydraulically connected behind such piston pumps, which are arranged separately from the piston pump in the pump housing.

본 발명의 과제는 다양한 출력 범위에서 유체의 균일한 배출 이송과 관련해서 공지된 피스톤 펌프의 특성을 능가하는 특성을 가진 피스톤 펌프를 구비한 차량 브레이크 시스템을 제공하는 것이다. It is an object of the present invention to provide a vehicle brake system with a piston pump having properties that outperform the known piston pumps with respect to the uniform discharge transport of the fluid at various output ranges.

상기 과제는 청구항 제 1 항의 특징을 포함하는 피스톤 펌프에 의해 해결된다. The problem is solved by a piston pump comprising the features of claim 1.

본 발명에 따라, 폐쇄체에 의해 선택적으로 폐쇄될 수 있는, 배출 유체용 배출 개구 및 유동 방향으로 후속하는, 배출 유체를 위한 배출부를 가진 유압식 차량 브레이크 시스템용 피스톤 펌프가 제공되고, 상기 피스톤 펌프에서 폐쇄체는 반구 섹션과 샤프트 섹션으로 형성되고, 상기 폐쇄체는 가이드 보어 내에 안내되어 이동 가능하고, 상기 배출부는 배출 유체용 댐핑 부재와 함께 형성된다. According to the invention, there is provided a piston pump for a hydraulic vehicle brake system having a discharge opening for the discharge fluid and a discharge portion for the discharge fluid, which can be selectively closed by a closure, in the piston pump. The closure is formed of a hemisphere section and a shaft section, the closure being guided and movable in the guide bore, the outlet being formed with a damping member for the discharge fluid.

또한 본 발명에 따라, 상기 피스톤 펌프를 가진 차량 브레이크 시스템이 제공된다. According to the invention, there is also provided a vehicle brake system with said piston pump.

다시 말해서 본 발명의 핵심은, 반구형 폐쇄체 또는 피스톤 펌프의 배출 밸브의 반구가 댐핑 부재와 조합되는 것이다. 댐핑 부재는 연결 라인에 의해 유동 안내 방식으로 반구에 연결된다. 피스톤 펌프의 배출, 즉 배출부의 배출은 댐핑 부재 후방에서 이루어진다. In other words, the essence of the invention is that the hemisphere of the hemispherical closure or the discharge valve of the piston pump is combined with the damping member. The damping member is connected to the hemisphere in a flow guide manner by a connecting line. The discharge of the piston pump, ie the discharge of the discharge, takes place behind the damping member.

본 발명에 따른 실시예에 의해, 브레이크액을 특히 진동 및 소음 없이 배출시키는 피스톤 펌프를 가진 차량 브레이크 시스템이 제공된다. According to an embodiment according to the invention, a vehicle brake system with a piston pump for discharging brake fluid, in particular without vibration and noise, is provided.

본 발명에 따른 피스톤 펌프의 바람직한 제 1 실시예에 따라, 배출부는 라인 섹션과 함께 형성되고, 상기 라인 섹션은 가이드 보어를 우회하여 반구 섹션과 댐핑 부재 사이의 유동을 연결한다. According to a first preferred embodiment of the piston pump according to the invention, the outlet is formed with a line section, which bypasses the guide bore to connect the flow between the hemisphere section and the damping member.

이러한 개선예에 의해 반구와 댐핑 부재는 직접 직렬로 연결되고, 경우에 따라서 유동 기술적으로 방해가 되는 다른 부재가 그 사이에 배치되지 않는다. 반구와 댐핑 부재가 적절하게 설계됨으로써 상기 피스톤 펌프의 유동 기술적 상태가 비교적 쉽게 그리고 정확히 원하는 대로 미리 결정될 수 있다. By this refinement, the hemisphere and the damping member are connected in series directly, and in some cases no other member which is technically disturbing in flow technology is disposed between them. By properly designing the hemisphere and damping member, the flow technical state of the piston pump can be predetermined relatively easily and exactly as desired.

본 발명에 따른 피스톤 펌프의 바람직한 제 2 실시예에 따라, 라인 섹션은 실질적으로 가이드 보어에 대해 평행하게 형성된다. According to a second preferred embodiment of the piston pump according to the invention, the line section is formed substantially parallel to the guide bore.

가이드 보어에 대한 라인 섹션의 평행한 배치는 제조 기술적으로 특히 저렴하게 이루어질 수 있고, 따라서 특히 콤팩트한 구조의 장점을 제공한다. The parallel arrangement of the line sections with respect to the guide bore can be made particularly cheaply in manufacturing technology, thus providing the advantage of a particularly compact structure.

본 발명에 따른 피스톤 펌프의 바람직한 제 3 실시예에 따라, 배출부 단부에 배출 유체용 스로틀이 배치된다. According to a third preferred embodiment of the piston pump according to the invention, a throttle for the discharge fluid is arranged at the discharge end.

본 발명에 따른 피스톤 펌프의 배출은 댐핑 부재 이후에 이루어진다. 배출 전에 전술한 개선예에 따라 스로틀이 장착된다. 스로틀은 축적 작용으로 인해 댐핑 부재의 기능을 개선하고 지원한다. The discharge of the piston pump according to the invention takes place after the damping member. The throttle is mounted according to the above-described refinement before discharge. The throttle improves and supports the function of the damping member due to the accumulation action.

본 발명에 따른 피스톤 펌프의 바람직한 제 4 개선예에 따라, 폐쇄체와 댐핑 부재 사이에 다른 스로틀이 직렬로 접속된다. According to a fourth preferred refinement of the piston pump according to the invention, another throttle is connected in series between the closure and the damping member.

이러한 개선예는 폐쇄체의 진동 상태 및 개폐시 발생하는 소음과 관련해서 피스톤 펌프의 상태를 개선시킨다. This improvement improves the state of the piston pump in relation to the vibration state of the closure and the noise generated during opening and closing.

본 발명에 따른 피스톤 펌프의 제 5 개선예에 따라, 댐핑 부재는 배출부의 배출 라인에 직접 배치된다. According to a fifth improvement of the piston pump according to the invention, the damping member is arranged directly in the discharge line of the discharge portion.

반구형 폐쇄체 후방에 배출 경로 내에 직접 댐핑 부재를 상기와 같이 배치하는 것을 여기에서 "직렬 접속"이라고 한다. 이 경우, 배출 유체가 배출 경로에서 댐핑 부재를 스쳐 지나가는 동안, 댐핑 부재는 기본적으로 배출 유체 전체에 작용한다. Such arrangement of the damping member directly in the discharge path behind the hemispherical closure is referred to herein as "serial connection". In this case, the damping member basically acts on the entire exhaust fluid while the draining fluid passes by the damping member in the discharge path.

본 발명에 따른 피스톤 펌프의 제 6 개선예에 따라 댐핑 부재는 배출부의 배출 라인으로부터 분기하는 라인에 배치된다. According to a sixth refinement of the piston pump according to the invention the damping member is arranged in a line branching from the discharge line of the discharge portion.

펌프 부재로부터 나온 유체의 메인 유동 경로의 분기에 댐핑 부재를 배치함으로써 "병렬 접속"이 제공되고, 상기 접속 시 유체는 배출부를 통해 배출될 수 있고, 동시에 분기에 의해 및 거기에서 작용하는 댐핑 부재에 의해 유체의 맥동 유동 거동이 댐핑된다. By placing a damping member in the branch of the main flow path of the fluid from the pump member, a "parallel connection" is provided, in which the fluid can be discharged through the outlet and at the same time to the damping member acting by and on the branch. Thereby damping the pulsating flow behavior of the fluid.

본 발명에 따른 피스톤 펌프의 바람직한 제 7 개선예에 따라 배출 개구로부터 배출 라인 및 분기 라인이 시작된다. According to a seventh preferred refinement of the piston pump according to the invention, the discharge line and the branch line start from the discharge opening.

따라서 배출 개구는 중앙 부재를 형성하고, 상기 부재로부터 라인 경로가 연장된다. 이것은 배출 개구에서 이동하는 폐쇄체에 특히 균형적인 유동 상태를 일으킨다. The discharge opening thus forms a central member, from which the line path extends. This results in a particularly balanced flow state for the closure moving in the discharge opening.

본 발명에 따른 피스톤 펌프의 바람직한 제 8 개선예에 따라, 배출 개구는 원형으로 형성되고, 분기 라인은 배출 개구의 원주에서 배출 개구의 배출 라인에 대해 90 °오프셋되어 시작된다. According to an eighth preferred refinement of the piston pump according to the invention, the discharge opening is formed in a circular shape, and the branch line starts at 90 ° offset to the discharge line of the discharge opening at the circumference of the discharge opening.

분기 라인의 이러한 오프셋 배치는 전체적으로 비대칭 유동 상태를 야기하고, 이로써 특히 폐쇄체에서 진동 발생이 감소될 수 있다. This offset arrangement of the branch lines leads to an asymmetric flow state as a whole, thereby reducing the generation of vibrations, especially in the closure.

하기에서 본 발명에 따른 방법의 실시예가 첨부된 개략적인 도면을 참고로 설명된다. In the following an embodiment of the method according to the invention is described with reference to the accompanying schematic drawings.

도 1은 본 발명에 따른 피스톤 펌프의 제 1 실시예의 부분적인 종단면도.
도 2는 배출 유체의 유동 경로를 도시한 도 1에 따른 단면도.
도 3은 도 1 및 도 2에 따른 실시예의 회로도.
도 4는 본 발명에 따른 피스톤 펌프의 제 2 실시예의 회로도.
도 5는 본 발명에 따른 피스톤 펌프의 제 3 실시예의 부분적인 종단면도.
도 6은 도 5에 따른 실시예의 회로도.
도 7은 도 5 및 도 6에 따른 실시예의 중간 부재의 부분적인 사시 단면도. 1 is a partial longitudinal sectional view of a first embodiment of a piston pump according to the invention;
FIG. 2 is a sectional view according to FIG. 1 showing the flow path of the discharge fluid; FIG.
3 is a circuit diagram of the embodiment according to FIGS. 1 and 2.
4 is a circuit diagram of a second embodiment of a piston pump according to the invention.
5 is a partial longitudinal sectional view of a third embodiment of a piston pump according to the invention;
6 shows a circuit diagram of the embodiment according to FIG. 5.
7 is a partial perspective cross-sectional view of the intermediate member of the embodiment according to FIGS. 5 and 6.

도 1에는 도시되지 않은 유압식 차량 브레이크 시스템용 피스톤 펌프(10)가 도시되고, 상기 피스톤 펌프는 차량 브레이크 시스템 내의 브레이크액의 유체 압력을 형성하는데 이용된다. 피스톤 펌프(10)는 비이커 형태의 펌프 하우징(12)을 포함하고, 상기 펌프 하우징 내에서 도시되지 않은 펌프 피스톤이 나선형 스프링(14)에 대항해서 이동 가능하게 지지된다. 펌프 피스톤은 펌프 하우징(12)의 베이스 영역에 형성된 원형 배출 개구(16) 및 후속하는 배출부(18)를 통해 브레이크액을 피스톤 펌프(10) 밖으로 이송한다. 1 shows a piston pump 10 for a hydraulic vehicle brake system, not shown, which piston pump is used to create a fluid pressure of brake fluid in the vehicle brake system. The piston pump 10 includes a pump housing 12 in the form of a beaker, in which a pump piston, not shown, is movably supported against the helical spring 14. The pump piston delivers the brake fluid out of the piston pump 10 through a circular discharge opening 16 and subsequent discharge 18 formed in the base region of the pump housing 12.

배출부(18)는 펌프 하우징(12)에 연결된 실린더형 중간 부재(20) 및 후속하는 폐쇄 커버(22)로 형성된다. 중간 부재(20)에서 중앙 가이드 보어(24) 내에 폐쇄체(26)가 이동 가능하게 지지된다. 폐쇄체(26)는 실린더형 샤프트 섹션(28)을 갖고, 상기 섹션은 가이드 보어(24)에 안내되고 나선형 스프링(30)에 의해 배출 개구(16)의 방향으로 변위된다. The outlet 18 is formed of a cylindrical intermediate member 20 connected to the pump housing 12 and a subsequent closing cover 22. The closure 26 is movably supported in the central guide bore 24 at the intermediate member 20. The closure 26 has a cylindrical shaft section 28, which is guided to the guide bore 24 and is displaced in the direction of the discharge opening 16 by the helical spring 30.

도 1 및 도 2에 도시된 스위칭 위치에서 배출 개구(16)에 폐쇄체(26)의 반구형 섹션(32)이 접촉한다. 폐쇄체(26)는 이러한 스위칭 위치에서 배출 개구(16)를 폐쇄하지만, 나선형 스프링(30)의 스프링력에 대항해서 펌프 하우징(12) 내의 유체 압력으로 인해 배출 개구(16)로부터 분리될 수 있으므로, 배출부(18)를 통해 안내되는 배출 라인(34)이 릴리스된다. 샤프트 섹션(28)으로 형성된 가이드로 인해 폐쇄체(26)의 이동은 특히 진동 없이 조용하다. The hemispherical section 32 of the closure 26 contacts the outlet opening 16 in the switching position shown in FIGS. 1 and 2. The closure 26 closes the discharge opening 16 in this switching position but can be separated from the discharge opening 16 due to the fluid pressure in the pump housing 12 against the spring force of the helical spring 30. The discharge line 34, which is guided through the discharge 18, is released. Due to the guide formed by the shaft section 28 the movement of the closure 26 is particularly quiet without vibration.

배출 라인(34)은 유동 방향으로 유동 개구(16)의 바로 뒤에서 라인 섹션(36)으로 형성되고, 상기 섹션은 가이드 보어(24)에 편심되게 그리고 가이드 보어(24)를 우회하여, 실질적으로 상기 가이드 보어의 길이방향 축에 대해 평행하게 중간 부재(20) 내에 형성된다. 라인 섹션(36)은 디스크 형태의 댐핑 챔버(38)로 안내되고, 상기 챔버는 중간 부재(20)와 폐쇄 커버(22) 사이의 영역에서 댐퍼 멤브레인(40)에 인접하도록 형성된다. 댐퍼 멤브레인(40)은 댐퍼 챔버(42)와 댐핑 챔버(38)를 제한하고, 상기 댐퍼 챔버는 폐쇄 커버(22) 내에 형성되고 기체 또는 그 밖의 압축 가능한 적절한 성분으로 채워진다. 배출부(18)를 통해 배출되는 브레이크액의 압력 충격을 댐핑하기 위한 댐핑 부재(44)는 댐퍼 멤브레인(40)과 댐퍼 챔버(42)에 의해 형성된다. The discharge line 34 is formed in the flow direction with a line section 36 directly behind the flow opening 16, which section is eccentric to the guide bore 24 and bypasses the guide bore 24, substantially the It is formed in the intermediate member 20 parallel to the longitudinal axis of the guide bore. The line section 36 is led to a damping chamber 38 in the form of a disk, which is formed adjacent to the damper membrane 40 in the region between the intermediate member 20 and the closing cover 22. The damper membrane 40 limits the damper chamber 42 and the damping chamber 38, which is formed in the closing cover 22 and filled with gas or other compressible suitable components. The damping member 44 for damping the pressure shock of the brake fluid discharged through the discharge portion 18 is formed by the damper membrane 40 and the damper chamber 42.

유동 방향으로 댐핑 챔버(38) 후방에 길이방향 축선에 대해 기울어져 연장된 라인 섹션(46)이 중간 부재(20)를 통해 스로틀(48)을 지나 중간 부재(20) 밖으로 안내된다. 스로틀(48)은 브레이크액의 배출 시 배출부(18) 내부의 역압을 높이고, 이로 인해 댐핑 부재(44)의 작용이 증가한다. A line section 46 extending inclined with respect to the longitudinal axis behind the damping chamber 38 in the flow direction is guided through the throttle 48 through the intermediate member 20 and out of the intermediate member 20. The throttle 48 increases the back pressure inside the discharge portion 18 when the brake fluid is discharged, thereby increasing the action of the damping member 44.

이로써 주어지는 브레이크액의 유동 경로가 도 2에 여러 화살표로 도시된다. The flow path of the brake fluid thus given is shown by several arrows in FIG. 2.

부재들, 즉 폐쇄체(26), 댐핑 부재(44) 및 스로틀(48)의 기능적인 작용은 도 3에 따른 회로도에 도시되고, 상기 부재들은 직렬 접속의(기능적으로 앞뒤로 나란히 배치됨) 형태로 작용하는 것을 알 수 있는데, 그 이유는 배출되는 브레이크액이 그 경로에서 배출부(18)를 통해 특히 댐핑 부재(44)의 댐퍼 멤브레인(40) 앞의 댐핑 챔버(38)를 완전히 관류하기 때문이다. 즉 댐핑 부재(44)는 배출부(18)의 배출 라인에 직접 배치된다. The functional action of the members, namely the closure 26, the damping member 44 and the throttle 48, is shown in the circuit diagram according to FIG. 3, which acts in the form of a series connection (functionally arranged back and forth side by side). This is because the discharged brake fluid completely flows through the outlet 18 in its path, in particular through the damping chamber 38 in front of the damper membrane 40 of the damping member 44. In other words, the damping member 44 is disposed directly in the discharge line of the discharge portion 18.

도 4에는 도 3의 회로도에 의해 피스톤 펌프(10)의 다른 실시예가 도시되고, 상기 도면에서 폐쇄체(26)와 댐핑 부재(44) 사이에 다른 스로틀(50)이 직렬 접속된다. 상기 스로틀(50)은 도 1 및 도 2에 따른 도면에서 라인 섹션(36)에 형성된다. In FIG. 4 another embodiment of the piston pump 10 is shown by the circuit diagram of FIG. 3, in which another throttle 50 is connected in series between the closure 26 and the damping member 44. The throttle 50 is formed in the line section 36 in the view according to FIGS. 1 and 2.

반구형 폐쇄체 후방에, 배출 경로에 직접 댐핑 부재를 상기와 같이 배치하는 것을 "직렬 접속"이라고 한다. 즉, 상기 유체가 배출 경로에서 댐핑 부재를 스쳐 지나가는 동안, 댐핑 부재는 기본적으로 전체적인 배출 유체에 작용한다. Behind the hemispherical closure, the direct arrangement of the damping member in the discharge path as described above is referred to as "serial connection". That is, while the fluid is passing through the damping member in the discharge path, the damping member basically acts on the overall discharge fluid.

도 5 및 도 7은 피스톤 펌프(10)의 실시예를 도시하고, 상기 실시예에서 배출 개구(16)로부터 배출 라인(34) 및 분기 라인(52)이 시작된다. 분기 라인(52)은 (라인 섹션(36)에 상응하게) 마찬가지로 가이드 보어(24)를 우회하여 댐핑 챔버(38)에 안내되고, 상기 댐핑 챔버는 이 경우 댐핑 부재(44)의 댐퍼 멤브레인(40) 앞에 "막다른 길"을 형성한다. 댐핑 부재(44)를 상기와 같이 배치함으로써 상기 댐핑 부재는 기존의 라인 경로로부터 배출부(18)를 지나서 스텝형으로 배치됨으로써, 소위 "병렬 접속"의 형태로 기능적으로 연관되고, 이는 도 6에 따른 회로도에 도시된다. 5 and 7 show an embodiment of the piston pump 10, in which the discharge line 34 and the branch line 52 start from the discharge opening 16. Branch line 52 is similarly guided into damping chamber 38 by bypassing guide bore 24 (corresponding to line section 36), which in this case is damper membrane 40 of damping member 44. To form a "dead end". By disposing the damping member 44 as described above, the damping member is stepped from the existing line path past the outlet 18 so that it is functionally associated in the form of a so-called "parallel connection", which is shown in FIG. It is shown in the circuit diagram according to it.

도 7에 따른 배출 개구(16)에서 분기 라인(52)은 배출 라인(34)에 대해 90°의 각도(54)로 오프셋 되어 시작된다. 상기와 같이 오프셋된 배치는 폐쇄체(26)의 반구 섹션(32)에 비대칭 유동 상황을 제공하고, 이로 인해 폐쇄체(26)의 진동이 방지된다. In the discharge opening 16 according to FIG. 7, the branch line 52 starts offset by an angle 54 of 90 ° with respect to the discharge line 34. This offset arrangement provides an asymmetric flow situation in the hemisphere section 32 of the closure 26, thereby preventing vibration of the closure 26.

10 피스톤 펌프
16 배출 개구
18 배출부
24 가이드 보어
26 폐쇄체
28 샤프트 섹션
32 반구 섹션10 piston pump
16 discharge opening
18 outlet
24 guide bore
26 closures
28 shaft section
32 hemisphere section

Claims (10)

폐쇄체(26)에 의해 선택적으로 폐쇄될 수 있는 배출 유체용 배출 개구(16) 및 유동 방향으로 후속하는, 배출 유체용 배출부(18)를 가진 유압식 차량 브레이크 시스템용 피스톤 펌프(10)에 있어서,
상기 폐쇄체(26)는 반구 섹션(32) 및 샤프트 섹션(28)에 의해 형성되고, 상기 폐쇄체는 가이드 섹션(24)에 안내되어 이동 가능하고, 상기 배출부(18)는 배출 유체용 댐핑 부재(44)와 함께 형성되는 것을 특징으로 하는 피스톤 펌프.In a piston pump (10) for a hydraulic vehicle brake system having a discharge opening (16) for the discharge fluid that can be selectively closed by a closure (26) and a discharge portion (18) for the discharge fluid, which follows in the flow direction. ,
The closure 26 is formed by a hemisphere section 32 and a shaft section 28, the closure being guided and movable in the guide section 24, the outlet 18 damping for the discharge fluid. Piston pump, characterized in that formed with the member (44). 제 1 항에 있어서, 상기 배출부(18)는 라인 섹션(36)과 함께 형성되고, 상기 라인 섹션은 상기 가이드 보어(24)를 우회하여 상기 반구 섹션(32)과 상기 댐핑 부재(44) 사이의 유동 연결을 제공하는 것을 특징으로 하는 피스톤 펌프.2. The discharge section (18) according to claim 1, wherein said discharge section (18) is formed with a line section (36), said line section bypassing said guide bore (24) between said hemisphere section (32) and said damping member (44). Providing a flow connection of the piston pump. 제 2 항에 있어서, 상기 라인 섹션(36)은 실질적으로 상기 가이드 보어(24)에 대해 평행하게 형성되는 것을 특징으로 하는 피스톤 펌프.3. A piston pump according to claim 2, wherein the line section (36) is formed substantially parallel to the guide bore (24). 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 배출부(18)의 단부에 상기 배출 유체용 스로틀(48)이 배치되는 것을 특징으로 하는 피스톤 펌프.4. A piston pump as claimed in any one of the preceding claims, characterized in that the throttle (48) for the discharge fluid is arranged at the end of the discharge section (18). 제 4 항에 있어서, 상기 폐쇄체(26)와 상기 댐핑 부재(44) 사이에 다른 스로틀(50)이 직렬 접속되는 것을 특징으로 하는 피스톤 펌프.5. The piston pump according to claim 4, wherein another throttle (50) is connected in series between said closure (26) and said damping member (44). 제 1 항 내지 제 5 항 중 어느 한 항에 있어서, 상기 댐핑 부재(44)는 상기 배출부(18)의 상기 배출 라인(34)에 직접 배치되는 것을 특징으로 하는 피스톤 펌프.6. The piston pump according to claim 1, wherein the damping member is arranged directly on the discharge line of the discharge part. 제 1 항 내지 제 5 항 중 어느 한 항에 있어서, 상기 댐핑 부재(44)는 상기 배출부(18)의 상기 배출 라인(34)으로부터 분기하는 라인(52)에 배치되는 것을 특징으로 하는 피스톤 펌프.6. The piston pump according to claim 1, wherein the damping member 44 is arranged in a line 52 branching from the discharge line 34 of the discharge part 18. 7. . 제 7 항에 있어서, 상기 배출 개구(16)로부터 상기 배출 라인(34) 및 상기 분기 라인(52)이 시작되는 것을 특징으로 하는 피스톤 펌프.8. The piston pump according to claim 7, characterized in that the discharge line (34) and the branch line (52) start from the discharge opening (16). 제 8 항에 있어서, 상기 배출 개구(16)는 원형으로 형성되고, 상기 분기 라인(52)은 상기 배출 라인(34)에 대해 90°각도로 오프셋되어 상기 배출 개구로부터 시작되는 것을 특징으로 하는 피스톤 펌프.9. The piston as claimed in claim 8, wherein the outlet opening (16) is formed in a circular shape, and the branch line (52) is offset from the outlet line by an angle of 90 [deg.]. Pump. 제 1 항 내지 제 9 항 중 어느 한 항에 따른 피스톤 펌프(10)를 가진 차량 브레이크 시스템.
10. A vehicle brake system with a piston pump (10) according to claim 1.
KR1020110088779A 2010-09-03 2011-09-02 Piston pump with a outlet KR101910917B1 (en)

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GB2483331A (en) 2012-03-07
CN102410171A (en) 2012-04-11
KR101910917B1 (en) 2018-10-24
DE102010040193A1 (en) 2012-03-08
DE102010040193B4 (en) 2021-07-22
CN102410171B (en) 2016-01-20
GB201113462D0 (en) 2011-09-21

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