KR100827272B1 - A pump for electronic control brake system - Google Patents

A pump for electronic control brake system Download PDF

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Publication number
KR100827272B1
KR100827272B1 KR1020070034696A KR20070034696A KR100827272B1 KR 100827272 B1 KR100827272 B1 KR 100827272B1 KR 1020070034696 A KR1020070034696 A KR 1020070034696A KR 20070034696 A KR20070034696 A KR 20070034696A KR 100827272 B1 KR100827272 B1 KR 100827272B1
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KR
South Korea
Prior art keywords
valve
pump
sleeve
suction
piston
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KR1020070034696A
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Korean (ko)
Inventor
김용갑
Original Assignee
주식회사 만도
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Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020070034696A priority Critical patent/KR100827272B1/en
Priority to US12/043,449 priority patent/US20080245069A1/en
Priority to DE102008013568A priority patent/DE102008013568B4/en
Priority to CN2008100876072A priority patent/CN101284528B/en
Application granted granted Critical
Publication of KR100827272B1 publication Critical patent/KR100827272B1/en
Priority to US12/482,208 priority patent/US8087911B2/en
Priority to US12/482,192 priority patent/US7993115B2/en

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    • 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
    • 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
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members

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

Abstract

A pump for an electronic control brake system is provided to simplify components of a discharging valve part, to improve assembly efficiency, and to reduce manufacturing cost by pressing a slim sheet between a valve sheet and a valve cap in order to form a sleeve. A pump for an electronic control brake system comprises a bore(35), a piston(41), a suction valve part(50), and a discharging valve part(60). The bore is formed at a modulator block(32) and communicated with a suction port(33) and a discharging port(34). A suction path(42) is formed in the piston. The suction valve part opens and closes an outlet of the suction path according to the positions of the piston. The discharging valve part is operated reciprocally with the suction valve part. The discharging valve part includes a valve sheet(61), a sleeve(70) surrounding the cover of the valve sheet, a discharging ball(62) arranged between the sleeve and the valve sheet, and a valve cap(64) arranged at the rear side of the sleeve. The sleeve is formed by a press or forging process.

Description

전자제어식 브레이크 시스템용 펌프{A pump for electronic control brake system}Pump for electronic control brake system

도 1은 종래의 전자제어식 브레이크 시스템용 펌프를 보여주는 단면도이다.1 is a cross-sectional view showing a conventional pump for an electronically controlled brake system.

도 2는 본 발명에 따른 전자제어식 브레이크 시스템용 펌프를 보여주는 단면도이다.2 is a cross-sectional view showing a pump for an electronically controlled brake system according to the present invention.

도 3은 도2의 펌프에 포함되는 슬리브의 사시도이다.3 is a perspective view of a sleeve included in the pump of FIG. 2.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

32: 모듈레이터블록 33: 흡입포트32: modulator block 33: suction port

34: 토출포트 40: 피스톤펌프34: discharge port 40: piston pump

41: 피스톤 50: 흡입밸브부41: piston 50: suction valve

60: 배출밸브부 61: 밸브시트60: discharge valve 61: valve seat

62: 배출볼 63: 지지스프링62: discharge ball 63: support spring

64: 밸브캡 70: 슬리브64: valve cap 70: sleeve

71: 고정부 72: 제1결합부71: fixed portion 72: first coupling portion

75: 오리피스 76: 가이드75: orifice 76: guide

본 발명은 전자제어식 브레이크 시스템용 펌프에 관한 것으로서, 보다 상세하게는 배출밸브측의 구조를 단순화하여 제조원가를 절감할 수 있는 전자제어식 브레이크 시스템용 펌프에 관한 것이다.The present invention relates to a pump for an electronically controlled brake system, and more particularly, to a pump for an electronically controlled brake system that can reduce the manufacturing cost by simplifying the structure of the discharge valve side.

일반적으로 전자제어식 브레이크 시스템은 차량의 제동, 급발진, 또는 급가속시 발생할 수 있는 슬립현상을 효율적으로 반지하기 위한 것으로서, 차량 휠의 유압브레이크 측으로 전달되는 제동유압을 제어하는 다수개의 솔레노이드밸브와, 유압브레이크로부터 빠져나온 오일을 일시 저장하기 위한 한 쌍의 저압어큐뮬레이터 및 고압어규뮬레이터와, 저압어큐뮬레이터와 고압어큐뮬레이터사이에 마련되어 모터에 의해 구동되는 한쌍의 펌프와, 솔레노이드밸브와 모터의 구동을 제어하기 위한 ECU를 포함하며, 이러한 구성요소들은 알루미늄으로 제작된 모듈레이터 블록에 내장된다.In general, an electronically controlled brake system is for effectively ringing a slip phenomenon that may occur during braking, rapid start, or rapid acceleration of a vehicle, and includes a plurality of solenoid valves for controlling braking hydraulic pressure transmitted to a hydraulic brake side of a vehicle wheel. A pair of low pressure accumulators and high pressure accumulators for temporarily storing oil discharged from the brake, and a pair of pumps driven by a motor provided between the low pressure accumulator and the high pressure accumulator, for controlling the operation of the solenoid valve and the motor. It includes an ECU, and these components are embedded in a modulator block made of aluminum.

이러한 전자제어식 브레이크 시스템을 구비한 차량은 제동력이 앞차축 또는 뒷차축에 선택적으로 작동되어, 휠브레이크에 가해지는 유압을 조절함으로써 차량을 안정되게 한다. 이때, 한 쌍의 펌프는 저압어큐뮬레이터 측의 저압상태 오일을 고압어큐뮬레이터 측으로 강제펌핑하여 유압브레이크 또는 마스터실린더 측으로 전달시키는 역할을 수행한다.A vehicle equipped with such an electronically controlled brake system has a braking force selectively acting on the front or rear axle to stabilize the vehicle by regulating the hydraulic pressure applied to the wheel brakes. At this time, the pair of pumps serve to forcibly pump the low pressure oil on the low pressure accumulator side to the high pressure accumulator side and deliver it to the hydraulic brake or master cylinder side.

도 1은 종래의 전자제어식 브레이크 시스템용 펌프의 구성을 도시한 단면도이다.1 is a cross-sectional view showing the configuration of a conventional pump for an electronically controlled brake system.

도 1에 도시된 바와 같이 오일 유통유로와 각종 밸브가 설치된 블록(1) 내에 설치되는데, 이 블록(1)의 중앙부에는 편심회전력을 발휘하는 편심모터(2)가 설치되고, 상기 블록(1)에는 펌프(10)의 부품들이 장착되기 위한 보어(3)가 형성되어 있다.As shown in FIG. 1, an oil distribution flow path and various valves are installed in a block 1, and an eccentric motor 2 exerting eccentric rotational power is provided at the center of the block 1, and the block 1 is provided. There is formed a bore 3 for mounting the components of the pump 10.

상기 보어(3)에는 상기 편심모터(2)에서 제공된 편심력으로 왕복직선 구동을 하는 피스톤(11)이 내장 설치되어 있다.The bore 3 is provided with a built-in piston 11 for reciprocating linear driving with the eccentric force provided by the eccentric motor 2.

상기 피스톤(11)은 일단이 상기 편심모터(2)의 편심베어링(미부호) 외주에 접하고, 타단에는 볼 형상의 흡입밸브(12)가 설치된다.One end of the piston 11 is in contact with the outer circumference of the eccentric bearing (unsigned) of the eccentric motor 2, and the other end is provided with a ball-shaped suction valve 12.

피스톤(11)의 외주에는 실링을 위한 오링(13)이 설치되며, 또한 저압 어큐뮤레이터로부터 오일의 유입을 위한 유입로(14)가 형성되어 있다.An outer ring 13 for sealing is installed on the outer circumference of the piston 11, and an inflow path 14 for introducing oil from the low pressure accumulator is formed.

그리고, 상기 피스톤(11)의 내부에는 중공부(15)가 형성되고, 상기 중공부(15)와 상기 유입로(14)를 연통시키는 유로관(16)이 형성되어 있다.In addition, a hollow portion 15 is formed inside the piston 11, and a flow path tube 16 communicating the hollow portion 15 and the inflow passage 14 is formed.

여기서 흡입밸브(12)와 피스톤(11)은 스프링 서포터(17)와 입구측 스프링(18) 그리고 복귀스프링(19)에 의하여 탄성 지지되어 있다.Here, the suction valve 12 and the piston 11 are elastically supported by the spring supporter 17, the inlet spring 18 and the return spring 19.

그리고 복귀스프링(19)의 상대하는 단부에는 배출밸브가 마련되는데, 배출밸브는 출구측 밸브시트(21)와 이 출구측 밸브시트(21)와 코킹 결합된 펌프 플러그(22)가 마련되고, 펌프 플러그(22) 내부에 출구측 스프링(23)에 의하여 지지된 볼형상으로 된 차단부재(24)가 설치된 구조를 이룬다.A discharge valve is provided at an opposite end of the return spring 19, and the discharge valve is provided with an outlet valve seat 21 and a pump plug 22 caulked with the outlet valve seat 21, and a pump. The plug 22 has a structure in which a blocking member 24 having a ball shape supported by an outlet side spring 23 is installed.

그러나 이와 같은 종래의 전자제어식 브레이크 시스템용 펌프는 배출밸브 측 즉, 밸브시트(21) 및 펌프 플러그(22) 등의 구조가 복잡하여 이들의 가공 및 조립을 위한 제조원가가 증가하는 문제점이 있다.However, such a conventional pump for electronically controlled brake system has a problem in that the structure of the discharge valve side, that is, the valve seat 21 and the pump plug 22 is complicated, so that the manufacturing cost for their processing and assembly is increased.

본 발명은 위와 같은 문제점을 해결하기 위해 발명된 것으로서, 본 발명의 목적은 가공성이 향상된 구조를 구비한 전자제어식 브레이크 시스템용 펌프를 제공하는데 있다.The present invention has been invented to solve the above problems, an object of the present invention to provide a pump for an electronically controlled brake system having a structure with improved processability.

상기와 같은 목적을 달성하기 위해, 본 발명은 모듈레이터 블록에 형성되며 흡입포트 및 토출포트와 연통된 보어와, 상기 보어에 왕복 가능하게 설치되며 내부에 흡입유로가 형성된 피스톤과, 상기 피스톤의 위치에 따라 상기 흡입유로의 출구측을 개폐하는 흡입밸브부와, 상기 보어의 일측에 구비되어 상기 흡입밸브부와 상반되게 작동하는 배출밸브부를 포함하는 전자제어식 브레이크 시스템용 펌프에 있어서, 상기 배출밸브부는 밸브시트와, 상기 밸브시트의 주위를 감싸는 슬리브와, 상기 슬리브와 상기 밸브시트사이에 마련되어 상기 밸브시트의 유로를 개폐하는 배출볼과, 상기 슬리브의 후측에 마련되어 상기 보어를 외부와 차단시키는 밸브캡을 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention is formed in the modulator block and the bore communicated with the suction port and the discharge port, the piston is reciprocally installed in the bore and the suction flow path formed therein, and the position of the piston In the pump for an electronically controlled brake system including a suction valve portion for opening and closing the outlet side of the suction flow passage and a discharge valve portion provided on one side of the bore to operate opposite to the suction valve portion, the discharge valve portion valve A seat, a sleeve surrounding the valve seat, a discharge ball provided between the sleeve and the valve seat to open and close the flow path of the valve seat, and a valve cap provided on the rear side of the sleeve to block the bore from the outside. It is characterized by including.

또한, 상기 슬리브는 프레스가공으로 형성되는 것을 특징으로 한다.In addition, the sleeve is characterized in that formed by pressing.

또한, 상기 밸브시트 또는 상기 밸브캡은 프레스가공으로 형성되는 것을 특징으로 한다.In addition, the valve seat or the valve cap is characterized in that formed by pressing.

또한, 상기 슬리브는 유체의 맥동을 저감하기 위한 오리피스를 포함하는 것을 특징으로 한다.In addition, the sleeve is characterized in that it comprises an orifice for reducing the pulsation of the fluid.

또한, 상기 배출밸브부는 상기 배출볼에 탄성복원력을 제공하는 복원스프링 을 더 포함하고, 상기 슬리브는 상기 복원스프링을 안내하기 위한 가이드부를 포함하는 것을 특징으로 한다.In addition, the discharge valve portion further comprises a restoring spring for providing an elastic restoring force to the discharge ball, the sleeve is characterized in that it comprises a guide for guiding the restoring spring.

이하에서는 본 발명에 따른 바람직한 실시예를 본 도면을 참조로 하여 상세하게 설명하도록 한다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 2에 도시된 바와 같이, 본 발명에 따른 전자제어식 브레이크용 펌프는 기본적으로 편심스핀들(30)을 중심으로 서로 대향하며 배치된 한 쌍의 피스톤 펌프(40)로 구성되어 모터(31)의 편심스핀들(30)의 편심 회전에 의해 서로 180도의 위상차로 펌핑하게 된다. 일렬로 배치되는 이 한 쌍의 피스톤 펌프(40)는 동일한 구조를 지니므로 발명의 명확성을 위해 하나의 피스톤 펌프(40)의 구조에 대해서만 설명한다. As shown in FIG. 2, the electronically controlled brake pump according to the present invention basically consists of a pair of piston pumps 40 disposed to face each other with respect to the eccentric spindles 30 to be eccentric of the motor 31. By the eccentric rotation of the spindle 30 it is pumped with a phase difference of 180 degrees to each other. Since the pair of piston pumps 40 arranged in a line have the same structure, only the structure of one piston pump 40 will be described for clarity of the invention.

피스톤 펌프(40)는 모터(31)의 편심스핀들(30)에 의해 왕복 운동하도록 모듈레이터 블록(32)에 형성된 보어(35)에 삽입되며, 내부에 흡입유로(42)가 형성된 피스톤(41)과, 이 피스톤(41)의 위치에 따라 흡입유로(42)의 출구측을 개폐하는 흡입밸브부(50)와, 보어(35)의 개방단부에 마련되어 흡입밸브부(50)와 상반되게 작동하는 배출밸브부(60)를 구비한다.The piston pump 40 is inserted into the bore 35 formed in the modulator block 32 to reciprocate by the eccentric spindles 30 of the motor 31, and the piston 41 having the suction passage 42 formed therein; And a suction valve part 50 for opening and closing the outlet side of the suction passage 42 according to the position of the piston 41, and a discharge part provided at an open end of the bore 35 and operating opposite to the suction valve part 50. The valve part 60 is provided.

모듈레이터블록(32)에는 피스톤(41)에 형성된 흡입유로(42)의 입구측과 저압어큐뮬레이터(미도시)측을 연통시키기 위한 흡입포트(33)와, 고압어큐뮬레이터(미도시)의 입구측과 배출밸브부(60)의 출구측을 연통시키기 위한 토출포트(34)가 형성되어 있다. The modulator block 32 has a suction port 33 for communicating the inlet side of the suction passage 42 formed in the piston 41 with the low pressure accumulator (not shown) side, and the inlet side and discharge of the high pressure accumulator (not shown). A discharge port 34 for communicating the outlet side of the valve portion 60 is formed.

그리고 피스톤(41)의 일단부는 편심스핀들(30)과 접하여 마련되어 편심스핀 들(30)의 회동에 따라 피스톤(41)은 보어(35)의 내부에서 왕복운동을 하도록 마련된다. 또한 피스톤(41)의 타단부에는 흡입밸브부(50)가 설치되고, 피스톤(41)의 외주에는 보어(35)의 내벽과의 클리어런스를 통해 오일이 누설되는 것을 방지하기 위한 시일(43)이 설치되어 있다. 이 시일(43)은 링 형상으로 이루어져 있으며, 피스톤(41)의 외주를 따라 오목하게 가공된 안착홈(44)에 배치된다. One end of the piston 41 is provided in contact with the eccentric spindle 30 and the piston 41 is provided to reciprocate in the bore 35 according to the rotation of the eccentric spindle 30. In addition, the other end of the piston 41 is provided with a suction valve 50, the outer periphery of the piston 41, the seal 43 for preventing oil from leaking through the clearance with the inner wall of the bore 35 is provided It is installed. The seal 43 is formed in a ring shape and is disposed in the seating groove 44 recessed along the outer circumference of the piston 41.

흡입밸브부(50)는 흡입볼(51)과, 흡입볼(51)을 지지하는 지지스프링(52)과, 지지스프링(52)이 결합되는 리테이너(53)를 포함하여 이루어진다.The suction valve unit 50 includes a suction ball 51, a support spring 52 supporting the suction ball 51, and a retainer 53 to which the support spring 52 is coupled.

흡입볼(51)은 피스톤(41)의 흡입유로(42)의 출구측 단부에 마련되어 흡입유로(42)를 개폐하는 기능을 하며, 리테이너(53)는 피스톤(41)의 출구측의 외경에 마련된 단차부(46)에 끼워져서 결합되며, 지지스프링(63)은 리테이너(53)와 흡입볼(51)사이에 배치되어 흡입볼(51)이 흡입유로(42)에 밀착되도록 하는 탄성력을 작용하게 된다.The suction ball 51 is provided at the outlet side end of the suction passage 42 of the piston 41 to open and close the suction passage 42, and the retainer 53 is provided at the outer diameter of the outlet side of the piston 41. It is coupled to the stepped portion 46, the support spring 63 is disposed between the retainer 53 and the suction ball 51 to act an elastic force to the suction ball 51 is in close contact with the suction flow path (42). do.

피스톤(41)을 중심으로 편심스핀들(30)의 대향하는 반대측에는 배출밸브부(60)가 마련된다.A discharge valve part 60 is provided on the opposite side of the eccentric spindle 30 with respect to the piston 41.

배출밸브부(60)는 토출유로(61a)가 마련되는 밸브시트(61)와, 밸브시트(61)의 토출유로(61a)를 개폐하는 배출볼(62)과, 밸브시트(61)를 감싸며 고정시키는 슬리브(70)와, 배출볼(62)과 슬리브(70)사이에 마련되어 배출볼(62)이 밸브시트(61)에 밀착되도록 하는 탄성력을 작용시키는 지지스프링(63)과 보어(35)의 내외측을 차단하기 위해 슬리브(70)의 후방에 마련되는 밸브캡(64)을 포함하여 이루어진다.The discharge valve part 60 surrounds the valve seat 61 in which the discharge flow path 61a is provided, the discharge ball 62 for opening and closing the discharge flow path 61a of the valve seat 61, and the valve seat 61. A support spring 63 and a bore 35 which are provided between the sleeve 70 for fixing and the discharge ball 62 and the sleeve 70 to exert an elastic force to bring the discharge ball 62 into close contact with the valve seat 61. It includes a valve cap 64 provided at the rear of the sleeve 70 to block the inside and outside of the.

또한 흡입밸브부(50)의 리테이너(53)와 배출밸브부(60)의 밸브시트(61)사이 에는 피스톤(41)을 편심스핀들(30)측으로 밀치는 탄성력을 작용시키는 리턴스프링(47)이 배치된다. 또한 리턴스프링(47)의 외주측에는 피스톤(41)의 진퇴를 가이드하기위한 피스톤가이드부(45)가 보어(35)에 결합된다.In addition, between the retainer 53 of the intake valve unit 50 and the valve seat 61 of the discharge valve unit 60, a return spring 47 for applying an elastic force that pushes the piston 41 toward the eccentric spindle 30 is provided. Is placed. In addition, a piston guide portion 45 for guiding the retraction of the piston 41 is coupled to the bore 35 on the outer circumferential side of the return spring 47.

본 발명에 따른 펌프의 배출밸브부의 슬리브는 도3에 도시된 바와 같이 내부가 중공된 원통형 형상으로 마련되는데, 일단이 피스톤가이드부(45)에 결합하는 고정부(71)가 형성되고, 고정부(71)에서 연장되어 내주면으로 밸브시트(61)를 감싸는 제1결합부(72)가 형성된다. 또한, 제1결합부(72)보다 내경이 작아지도록 절곡되어 마련되는 제2결합부(74)가 절곡부(73)를 기준으로 제1결합부(72)와 분리되어 마련되는데, 제2결합부(74)의 외주면은 밸브캡(64)의 내주면에 결합하여 고정되게 된다. 또한, 슬리브(70)의 타단에는 지지스프링(63)의 설치를 가이드하기 위한 가이드(76)가 돌출되어 마련된다.The sleeve of the discharge valve of the pump according to the invention is provided in a cylindrical shape hollow inside, as shown in Figure 3, a fixing portion 71 is coupled to one end of the piston guide portion 45, the fixing portion A first coupling portion 72 extending from 71 to surround the valve seat 61 with an inner circumferential surface is formed. In addition, the second coupling portion 74 is bent so that the inner diameter is smaller than the first coupling portion 72 is provided separately from the first coupling portion 72 on the basis of the bent portion 73, the second coupling The outer circumferential surface of the portion 74 is fixed to the inner circumferential surface of the valve cap 64. In addition, a guide 76 for guiding the installation of the support spring 63 protrudes from the other end of the sleeve 70.

또한 슬리브(70)의 절곡부(73)는 일면이 밸브시트(61)와 결합하고 타면이 밸브캡(64)과 결합하여 고정되며, 절곡부(73)에는 토출유로(61a)를 통해 배출된 유체가 통과하여 토출포트(34)로 유동할 수 있도록 오리피스(75)가 마련된다. 이러한 오리피스(75)는 토출유로(61a)를 통해 배출되는 유체의 맥동을 저감할 수 있게 하는 기능을 하게 된다.In addition, the bent portion 73 of the sleeve 70 is fixed to one side is coupled to the valve seat 61 and the other side is coupled to the valve cap 64, the bent portion 73 is discharged through the discharge passage (61a) An orifice 75 is provided to allow fluid to flow through the discharge port 34. The orifice 75 serves to reduce the pulsation of the fluid discharged through the discharge passage (61a).

이러한 본 발명의 슬리브(70)는 밸브시트(61)와 밸브캡(64)사이에 비교적 얇은 판재를 프레스 가공하여 형성하고 유체가 토출포트(34)로 유출될 수 있도록 오리피스(75)및 유로를 형성하였기 때문에 이러한 유로 및 오리피스를 밸브시트와 밸브캡사이에 구비하여야 했던 종래기술에 비해 비교적 간단하게 배출밸브부를 형성 할 수 있게 된다.This sleeve 70 of the present invention is formed by pressing a relatively thin plate between the valve seat 61 and the valve cap 64 and the orifice 75 and the flow path so that the fluid can flow to the discharge port 34 Since the flow path and orifice are formed between the valve seat and the valve cap, it is possible to form the discharge valve part relatively simply compared to the related art.

또한 본 발명의 슬리브(70)를 이용함으로써 밸브시트(61)와 밸브캡(64) 역시 그 구조를 단순화할 수 있어 단조 또는 프레스 등 non-cutting method로 형성할 수 있게 되어 조립성이 향상되며 제조비용을 절감할 수 있는 효과를 발휘하게 된다.In addition, by using the sleeve 70 of the present invention, the valve seat 61 and the valve cap 64 can also be simplified in structure, and thus can be formed by a non-cutting method such as forging or pressing, thereby improving the assemblability. This can reduce the cost.

이와 같이 구성된 본 발명에 따른 전자제어식 브레이크 시스템용 펌프의 작동에 대해 상세히 설명한다.The operation of the pump for an electronically controlled brake system according to the present invention configured as described above will be described in detail.

브레이크 시스템이 작동되면, 먼저, 모터(2)에 연결된 편심스핀들(30)에 의해 피스톤(41)이 밸브캡(64) 측으로 이동하여 상사점에 도달하는 과정에서는 흡입볼(51)이 흡입유로(42)를 폐쇄하게 되면서 흡입밸브부(50)와 배출밸브부(60) 사이에 형성된 압력실(48)에서 유체압력이 상승하게 된다. 이에 따라 배출볼(62)이 후퇴하게 되면서 토출유로(61a)가 개방되어 압력실(48)에 있는 유체가 밸브시트(61)와 슬리브(70)사이의 공간에 유입되고, 유입된 유체는 절곡부(73)에 마련된 오리피스(75)를 통해 모듈레이터블록(32)의 토출포트(34)로 토출되게 된다.When the brake system is operated, first, the suction ball 51 is a suction flow path in the process of moving the piston 41 toward the valve cap 64 by the eccentric spindle 30 connected to the motor 2 to reach the top dead center. As the 42 is closed, the fluid pressure is increased in the pressure chamber 48 formed between the intake valve part 50 and the discharge valve part 60. Accordingly, as the discharge ball 62 is retracted, the discharge passage 61a is opened so that the fluid in the pressure chamber 48 flows into the space between the valve seat 61 and the sleeve 70, and the introduced fluid is bent. Through the orifice 75 provided in the portion 73 is discharged to the discharge port 34 of the modulator block 32.

상기와 반대로 피스톤(41)이 편심스핀들(30) 측으로 이동하여 하사점에 도달하는 과정에서는 배출볼(62)이 토출유로(61a)를 폐쇄하여 압력실(48)에 부압이 형성하게 됨에 따라 흡입볼(51)이 흡입유로(42)를 개방하게 되어 유체가 모듈레이터블록(32)의 흡입포트(33)를 통해 흡입유로(42)로 흡입되게 된다.In contrast to the above, in the process in which the piston 41 moves toward the eccentric spindle 30 to reach the bottom dead center, the discharge ball 62 closes the discharge passage 61a to form a negative pressure in the pressure chamber 48. The ball 51 opens the suction passage 42 so that the fluid is sucked into the suction passage 42 through the suction port 33 of the modulator block 32.

이상에서 설명한 바와 같이, 본 발명에 따른 전자제어식 브레이크 시스템용 펌프에 의하면, 배출밸브부측의 구성요소를 단순화할 수 있게 되게 조립성을 향상 시키며 원가를 절감할 수 있는 효과가 있다.As described above, according to the pump for an electronically controlled brake system according to the present invention, there is an effect to improve the assembly and to reduce the cost to simplify the components on the discharge valve side.

Claims (5)

모듈레이터블록에 형성되며 흡입포트 및 토출포트와 연통된 보어와, 상기 보어에 왕복 가능하게 설치되며 내부에 흡입유로가 형성된 피스톤과, 상기 피스톤의 위치에 따라 상기 흡입유로의 출구측을 개폐하는 흡입밸브부와, 상기 보어의 일측에 구비되어 상기 흡입밸브부와 상반되게 작동하는 배출밸브부를 포함하는 전자제어식 브레이크 시스템용 펌프에 있어서,A bore formed in the modulator block, the bore communicating with the suction port and the discharge port, the piston reciprocally installed in the bore and having a suction passage formed therein, and a suction valve for opening and closing the outlet side of the suction passage according to the position of the piston. In the pump for the electronically controlled brake system provided on one side of the bore, and comprising a discharge valve portion that operates opposite to the intake valve portion, 상기 배출밸브부는 밸브시트와, 상기 밸브시트의 주위를 감싸는 슬리브와, 상기 슬리브와 상기 밸브시트사이에 마련되어 상기 밸브시트의 유로를 개폐하는 배출볼과, 상기 슬리브의 후측에 마련되어 상기 보어를 외부와 차단시키는 밸브캡을 포함하는 것을 특징으로 하는 전자제어식 브레이크 시스템용 펌프. The discharge valve unit is provided between the valve seat, a sleeve surrounding the valve seat, a discharge ball provided between the sleeve and the valve seat to open and close the flow path of the valve seat, and provided at a rear side of the sleeve to allow the bore to be externally connected. A pump for an electronically controlled brake system comprising a valve cap for shutting off. 제 1항에 있어서, 상기 슬리브는 프레스 또는 단조가공으로 형성되는 것을 특징으로 하는 전자제어식 브레이크 시스템용 펌프.The pump of claim 1, wherein the sleeve is formed by press or forging. 제 1항에 있어서, 상기 밸브시트 또는 상기 밸브캡은 프레스가공으로 형성되는 것을 특징으로 하는 전자제어식 브레이크 시스템용 펌프.The pump of claim 1, wherein the valve seat or the valve cap is formed by press working. 제 1항에 있어서, 상기 슬리브는 유체의 맥동을 저감하기 위한 오리피스를 포함하는 것을 특징으로 하는 전자제어식 브레이크 시스템용 펌프.The pump of claim 1, wherein the sleeve includes an orifice for reducing pulsation of the fluid. 제 1항에 있어서, 상기 배출밸브부는 상기 배출볼에 탄성복원력을 제공하는 리턴스프링을 더 포함하고, 상기 슬리브는 상기 리턴스프링을 안내하기 위한 가이드부를 포함하는 것을 특징으로 하는 전자제어식 브레이크 시스템용 펌프.The pump of claim 1, wherein the discharge valve part further comprises a return spring providing an elastic restoring force to the discharge ball, and the sleeve includes a guide part for guiding the return spring. .
KR1020070034696A 2007-04-09 2007-04-09 A pump for electronic control brake system KR100827272B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020070034696A KR100827272B1 (en) 2007-04-09 2007-04-09 A pump for electronic control brake system
US12/043,449 US20080245069A1 (en) 2007-04-09 2008-03-06 Pump of electronically controlled brake system
DE102008013568A DE102008013568B4 (en) 2007-04-09 2008-03-11 Pump of an electronically controlled braking system
CN2008100876072A CN101284528B (en) 2007-04-09 2008-03-20 Pump of electronically controlled brake system
US12/482,208 US8087911B2 (en) 2007-04-09 2009-06-10 Pump of electronically controlled brake system
US12/482,192 US7993115B2 (en) 2007-04-09 2009-06-10 Pump of electronically controlled brake system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180075940A (en) * 2016-12-27 2018-07-05 이래에이엠에스 주식회사 Piston pump for brake system of vehicles

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010040157A1 (en) * 2010-09-02 2012-03-08 Robert Bosch Gmbh Piston pump for conveying fluids and associated vehicle brake system
DE102012005391B4 (en) * 2011-03-11 2013-11-28 Mando Corporation Shut-off valve for hydraulic brake system
DE102011080287A1 (en) * 2011-08-02 2013-02-07 Robert Bosch Gmbh Piston pump for vehicle braking system, has supply piston for supplying fluid and piston return spring, which is designed as volute spring, where supply piston is guided in cylinder and is sealed by annular sliding seal against cylinder
CN105128866A (en) * 2015-07-20 2015-12-09 安徽省无为煤矿机械制造有限公司 Protective shed used for overhead man-riding device in mine channel
DE102015218557A1 (en) * 2015-09-28 2017-03-30 Robert Bosch Gmbh Valve device, in particular for throttling a flow of pressure medium in a pressure medium channel leading and damping device, in particular for damping of pressure pulsations in a brake circuit of a slip-controllable vehicle brake system
KR101915501B1 (en) * 2016-07-25 2018-11-08 이래에이엠에스 주식회사 Piston pump for brake system of vehicles
KR102413429B1 (en) * 2017-08-08 2022-06-28 주식회사 만도 Piston pump for brake system
CN112780517A (en) * 2020-12-30 2021-05-11 重庆异符科学仪器有限责任公司 Adjustable constant delivery pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081430A (en) * 2000-03-21 2002-10-26 콘티넨탈 테베스 아게 운트 코. 오하게 Piston pump
KR20050110054A (en) * 2004-05-17 2005-11-22 현대모비스 주식회사 Pump for a brake system
US20060083629A1 (en) * 2004-10-15 2006-04-20 Continental Teves Ag & Co. Ohg Piston pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055072B1 (en) * 1998-02-09 2002-09-04 Continental Teves AG & Co. oHG Pressure valve, especially for a piston pump
EP1426260A1 (en) * 2002-12-06 2004-06-09 Mando Corporation Pump for anti-lock brake systems
DE10346237A1 (en) * 2003-02-12 2004-09-09 Continental Teves Ag & Co. Ohg piston pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081430A (en) * 2000-03-21 2002-10-26 콘티넨탈 테베스 아게 운트 코. 오하게 Piston pump
KR20050110054A (en) * 2004-05-17 2005-11-22 현대모비스 주식회사 Pump for a brake system
US20060083629A1 (en) * 2004-10-15 2006-04-20 Continental Teves Ag & Co. Ohg Piston pump

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
공개특허공보 공개번호10-2002-0081430호 A
공개특허공보 공개번호10-2005-0110054호A
일본 공표특허공보 특표2004-529284 호A

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180075940A (en) * 2016-12-27 2018-07-05 이래에이엠에스 주식회사 Piston pump for brake system of vehicles
KR101888497B1 (en) 2016-12-27 2018-08-14 이래에이엠에스 주식회사 Piston pump for brake system of vehicles

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