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KR101105151B1 - Pump of brake system - Google Patents

Pump of brake system Download PDF

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Publication number
KR101105151B1
KR101105151B1 KR1020060037203A KR20060037203A KR101105151B1 KR 101105151 B1 KR101105151 B1 KR 101105151B1 KR 1020060037203 A KR1020060037203 A KR 1020060037203A KR 20060037203 A KR20060037203 A KR 20060037203A KR 101105151 B1 KR101105151 B1 KR 101105151B1
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KR
South Korea
Prior art keywords
valve seat
piston
compression chamber
inlet
pump
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KR1020060037203A
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Korean (ko)
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KR20070105132A (en
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최욱진
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주식회사 만도
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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
    • B60T8/4018—Pump units characterised by their drive mechanisms
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston

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

Abstract

본 발명의 목적은 압축된 오일의 토출 시의 압력 손실을 줄이고, 압축 성능을 동일 또는 그 이상으로 하면서도 펌프의 크기를 컴팩트하게 할 수 있으며, 불필요한 씰링부재나 백업부재 등을 생략할 수 있도록 한 브레이크 시스템의 펌프를 제공하기 위한 것이다.An object of the present invention is to reduce the pressure loss at the time of discharge of compressed oil, to compact the size of the pump with the same or more compression performance, and to eliminate unnecessary sealing members or backup members, etc. To provide a pump of the system.

이와 같은 목적을 달성하기 위한 본 발명에 따른 브레이크 시스템의 펌프는, 모듈레이터블록에 형성된 보어의 일단부로부터 소정 구간 직선왕복운동하는 피스톤; 상기 보어의 타단부에 설치되어 흡입유로를 형성하는 밸브시트부재; 상기 피스톤과 상기 밸브시트부재 사이에 형성된 압축실; 상기 밸브시트부재 측에 설치되어 상기 흡입유로와 상기 압축실을 연통시키거나 차단시키는 인렛밸브; 상기 압축실과 연통되는 토출유로를 형성하는 아웃렛밸브시트; 및 상기 아웃렛밸브시트를 개폐하여 상기 토출유로와 상기 압축실을 연통시키거나 차단시키는 아웃렛밸브를 포함하는 것을 특징으로 한다.The pump of the brake system according to the present invention for achieving the above object, the piston for linear reciprocating a predetermined section from one end of the bore formed in the modulator block; A valve seat member installed at the other end of the bore to form a suction passage; A compression chamber formed between the piston and the valve seat member; An inlet valve installed at the valve seat member to communicate or block the suction flow path and the compression chamber; An outlet valve seat forming a discharge passage communicating with the compression chamber; And an outlet valve for opening and closing the outlet valve seat to communicate or block the discharge passage and the compression chamber.

Description

브레이크 시스템의 펌프{PUMP FOR BRAKE SYSTEM}Pump of brake system {PUMP FOR BRAKE SYSTEM}

도 1은 종래의 브레이크 시스템의 펌프에 관하여 나타낸 단면도이다.1 is a cross-sectional view showing a pump of a conventional brake system.

도 2는 본 발명에 따른 브레이크 시스템의 펌프에 관하여 나타낸 단면도이다.2 is a cross-sectional view of a pump of the brake system according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

100 : 모터 130 : 베어링100: motor 130: bearing

200 : 모듈레이터블록 210 : 보어200: modulator block 210: bore

300 : 피스톤 310 : 씰링부재300: piston 310: sealing member

400 : 압축실 410 : 스프링400: compression chamber 410: spring

500 : 인렛밸브 510 : 인렛개폐부재500: inlet valve 510: inlet opening and closing member

520 : 밸브시트부재 521 : 밸브시트부520: valve seat member 521: valve seat portion

522 : 플랜지부 530 : 흡입유로522: flange portion 530: suction flow path

600 : 아웃렛밸브 610 : 아웃렛개폐부재600: outlet valve 610: outlet opening and closing member

620 : 아웃렛밸브시트 630 : 토출유로620: outlet valve seat 630: discharge passage

640 : 오리피스 700 : 커버640: Orifice 700: Cover

본 발명은 브레이크 시스템의 펌프에 관한 것으로 더욱 상세하게는 그 내부의 구조를 변경시켜 압축된 오일의 압력손실을 저감하고 피스톤의 내구성을 증가시키며 그 크기를 컴팩트하게 할 수 있는 브레이크 시스템의 펌프에 관한 것이다.The present invention relates to a pump of a brake system, and more particularly, to a pump of a brake system that can change the structure therein to reduce the pressure loss of the compressed oil, increase the durability of the piston and compact its size. will be.

일반적으로 브레이크 시스템은 차량의 제동, 급발진, 또는 급가속시 발생할 수 있는 슬립현상을 효율적으로 방지하기 위한 것으로, 차량 휠의 유압브레이크 측으로 전달되는 제동유압을 제어는 다수개의 솔레노이드밸브와, 유압브레이크로부터 빠져나온 오일을 일시 저장하기 위한 한 쌍의 저압어큐뮬레이터 및 고압어큐뮬레이터와, 저압어큐뮬레이터와 고압어큐뮬레이터 사이에 마련되어 모터에 의해 구동되는 한 쌍의 펌프와, 솔레노이드밸브와 모터의 구동을 제어하기 위한 ECU를 포함하며, 이러한 구성요소들은 알루미늄으로 제작된 모듈레이터블럭에 내장된다.In general, the brake system is to effectively prevent slippage that may occur during braking, rapid start, or rapid acceleration of the vehicle. The brake system controls the braking hydraulic pressure transmitted to the hydraulic brake side of the vehicle wheel from a plurality of solenoid valves and hydraulic brakes. A pair of low pressure accumulators and high pressure accumulators for temporarily storing the oil discharged, a pair of pumps provided between the low pressure accumulator and the high pressure accumulator and driven by a motor, and an ECU for controlling the solenoid valve and the driving of the motor. These components are embedded in a modulator block made of aluminum.

특히, 브레이크 시스템의 펌프는 저압어큐뮬레이터 또는 마스터실린더 측의 오일을 고압어큐뮬레이터 측으로 강제펌핑하여 유압브레이크 또는 마스터실린더 측으로 전달시키는 역할을 수행한다.In particular, the pump of the brake system serves to forcibly pump oil of the low pressure accumulator or master cylinder side to the high pressure accumulator side and deliver the oil to the hydraulic brake or master cylinder side.

도 1은 종래의 브레이크 시스템의 펌프에 관하여 나타낸 것으로, 모터(10)의 회전과 스핀들(11), 스핀들(11)에 의해 편심회전하는 편심축(12), 및 그 둘레에 설치된 베어링(13)에 의해 왕복운동하도록 모듈레이터블럭(20)에 형성된 보어(21) 내에 설치되며 내부에 오일유로(31)가 형성된 피스톤(30)과, 이 피스톤(30)의 위치에 따라 오일유로(34)의 출구측을 개폐하는 인렛밸브(50)와, 보어(21)의 개방단부에 마련되어 인렛밸브(50)와 상반되게 작동하는 아웃렛밸브(60)를 구비한다.1 shows a pump of a conventional brake system, in which the rotation of the motor 10 and the spindle 11, the eccentric shaft 12 eccentrically rotated by the spindle 11, and a bearing 13 installed around the pump 10 are shown. Piston 30 is installed in the bore 21 formed in the modulator block 20 to reciprocate by the oil passage 31 and the outlet of the oil passage 34 according to the position of the piston 30 The inlet valve 50 which opens and closes a side, and the outlet valve 60 provided in the open end of the bore 21 and operate in opposition to the inlet valve 50 are provided.

그리고 모듈레이터블럭(20)에는 피스톤(30) 오일유로(34)의 입구측과 저압어큐뮬레이터(미도시) 또는 마스터실린더(미도시) 측을 연계시키기 위한 흡입포트(22)와, 고압어큐뮬레이터(미도시)의 입구측과 아웃렛밸브(60)의 출구측을 연계시키기 위한 토출포트(23)가 상기 보어(21)와 통하도록 가공되어 있다.In addition, the modulator block 20 includes a suction port 22 for connecting the inlet side of the piston 30 oil passage 34 to a low pressure accumulator (not shown) or a master cylinder (not shown), and a high pressure accumulator (not shown). The discharge port 23 for connecting the inlet side of the () and the outlet side of the outlet valve 60 is processed to communicate with the bore (21).

이때 오일유로(34)를 개폐하는 상기 인렛밸브(50)는 오일유로(34)의 출구 측 단부에 설치되는 밸브개폐부재(51)와, 상기 밸브개폐부재(51)를 오일유로(34)의 출구 측으로 탄성지지하는 밸브스프링(55)과, 밸브개폐부재(51) 및 밸브스프링(55)을 수용하도록 마련된 홀더(54)로 구성되며, 오일유로(34)의 출구 측 피스톤(30)의 단부에는 상기 밸브개폐부재(51)가 당접 또는 이격되도록 원추형상으로 마련되는 밸브시트(52)가 형성된다.At this time, the inlet valve 50 that opens and closes the oil passage 34 includes a valve opening and closing member 51 installed at an outlet side end of the oil passage 34 and the valve opening and closing member 51 of the oil passage 34. It consists of a valve spring 55 elastically supporting to the outlet side, and a holder 54 provided to receive the valve opening and closing member 51 and the valve spring 55, the end of the piston 30 of the outlet side of the oil passage 34 The valve opening and closing member 51 is provided with a valve seat 52 is provided in a conical shape so as to contact or spaced apart.

한편, 상기 보어(21)의 내부에 고정되고 그 단부에 인렛밸브(50)가 설치된 피스톤(30)이 끼워지며 그 내부에 아웃렛밸브(60)가 마련된 밸브커버(70)가 구비된다. 밸브커버(70)는 피스톤(30)의 운동에 따라 상기 피스톤(30)의 단부와의 사이에 압축실(40)을 형성한다.On the other hand, the piston 30 is fixed to the inside of the bore 21, the inlet valve 50 is installed at its end is fitted with a valve cover 70 provided with an outlet valve 60 therein. The valve cover 70 forms a compression chamber 40 between the end of the piston 30 according to the movement of the piston 30.

또한 상기 밸브커버(70) 측에는 아웃렛밸브시트(62)와 상기 아웃렛밸브시트(62)를 개폐하는 아웃렛볼(61) 및 상기 아웃렛볼(61)을 탄성지지하는 볼스프링(65) 등이 설치되며, 상기 압축실(40)로부터 압축되어 유입된 오일이 토출포트(23)로 나갈 수 있도록 90˚정도의 각도로 꺽어진 위치에 오리피스(64)가 설치된다.In addition, the valve cover 70 is provided with an outlet valve seat 62 and an outlet ball 61 for opening and closing the outlet valve seat 62 and a ball spring 65 for elastically supporting the outlet ball 61. The orifice 64 is installed at a position bent at an angle of about 90 ° so that the oil compressed by the compression chamber 40 flows out to the discharge port 23.

상기 피스톤(30)의 외주면에는 기밀유지를 위한 제1씰링부재(31) 및 제2씰링 부재(32)가 설치되고, 상기 제1씰링부재(31) 및 제2씰링부재(32)와 각각 인접하여 제1백업부재(33) 및 제2백업부재(34)가 피스톤(30)에 걸리는 과다한 압력을 완충시키기 위해 설치된다.The outer circumferential surface of the piston 30 is provided with a first sealing member 31 and a second sealing member 32 for airtightness, and adjacent to the first sealing member 31 and the second sealing member 32, respectively. Thus, the first backup member 33 and the second backup member 34 are installed to cushion the excessive pressure applied to the piston 30.

이와 같이 구성된 종래 펌프는 모터(10)가 회전함에 따른 스핀들(11) 및 편심축(12)의 편심회전에 따라 피스톤(30)이 직선 왕복운동하며, 보어(21) 내부의 압력변화에 의해 서로 상반되게 인렛밸브(50)와 아웃렛밸브(60)가 개폐 작동함으로써, 오일이 가압되면서 고압어큐뮬레이터(미도시) 측으로 펌핑된다.In the conventional pump configured as described above, the piston 30 linearly reciprocates according to the eccentric rotation of the spindle 11 and the eccentric shaft 12 as the motor 10 rotates, and is mutually affected by a pressure change in the bore 21. Oppositely, the inlet valve 50 and the outlet valve 60 are opened and closed, so that oil is pressurized and pumped toward a high pressure accumulator (not shown).

그러나, 이와 같은 종래의 브레이크 시스템의 펌프는 압축실에서 압축된 오일이 아웃렛밸브의 개방에 의해 토출될 때 꺽여진 위치에 설치된 오리피스를 지나면서 압력손실이 발생하여 역류의 위험이 생기고, 또 상기와 같이 피스톤과 인렛밸브와 아웃렛밸브가 일직선상에 설치되면 펌프의 크기가 커질 수밖에 없으며, 또한 피스톤의 단부에 인렛밸브 등이 설치되어 그 길이가 매우 길어지므로 피스톤의 왕복운동 구간이 길어 씰링부재가 하나 이상 설치되어야 하고 피스톤에 걸리는 과다한 압력을 완충시키기 위한 백업부재도 추가로 설치되어야 하는 문제점이 있었다.However, the pump of the conventional brake system has a loss of pressure due to the pressure loss caused by passing the orifice installed in the bent position when the oil compressed in the compression chamber is discharged by the opening of the outlet valve, and the risk of backflow occurs. Likewise, when the piston, the inlet valve and the outlet valve are installed in a straight line, the size of the pump is inevitably increased. Also, since the inlet valve is installed at the end of the piston, the length of the piston is very long. There has been a problem that it should be installed over and additionally installed a backup member for buffering the excessive pressure applied to the piston.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 압축된 오일의 토출 시의 압력 손실을 줄이고, 압축 성능을 동일 또는 그 이상으로 하면서도 펌프의 크기를 컴팩트하게 할 수 있으며, 불필요한 씰링부재나 백업부재 등을 생략할 수 있도록 한 브레이크 시스템의 펌프를 제공하기 위한 것이다.The present invention is to solve the above problems, an object of the present invention is to reduce the pressure loss at the time of discharge of the compressed oil, and to compact the size of the pump while the compression performance is the same or more, unnecessary It is to provide a pump of the brake system to omit the sealing member, the backup member and the like.

이와 같은 목적을 달성하기 위한 본 발명에 따른 브레이크 시스템의 펌프는, 모듈레이터블록에 형성된 보어의 일단부로부터 소정 구간 직선왕복운동하는 피스톤; 상기 보어의 타단부에 설치되어 흡입유로를 형성하는 밸브시트부재; 상기 피스톤과 상기 밸브시트부재 사이에 형성된 압축실; 상기 밸브시트부재 측에 설치되어 상기 흡입유로와 상기 압축실을 연통시키거나 차단시키는 인렛밸브; 상기 압축실과 연통되는 토출유로를 형성하는 아웃렛밸브시트; 및 상기 아웃렛밸브시트를 개폐하여 상기 토출유로와 상기 압축실을 연통시키거나 차단시키는 아웃렛밸브를 포함하는 것을 특징으로 한다.The pump of the brake system according to the present invention for achieving the above object, the piston for linear reciprocating a predetermined section from one end of the bore formed in the modulator block; A valve seat member installed at the other end of the bore to form a suction passage; A compression chamber formed between the piston and the valve seat member; An inlet valve installed at the valve seat member to communicate or block the suction flow path and the compression chamber; An outlet valve seat forming a discharge passage communicating with the compression chamber; And an outlet valve for opening and closing the outlet valve seat to communicate or block the discharge passage and the compression chamber.

또한, 상기 아웃렛밸브시트는 상기 압축실을 형성하는 보어의 측면에 설치된 것을 특징으로 한다.In addition, the outlet valve seat is characterized in that installed on the side of the bore forming the compression chamber.

또한, 상기 밸브시트부재는 상기 보어의 타단부에 결합되는 플랜지부와, 상기 압축실로 유체가 유입되는 입구를 형성하는 밸브시트부를 포함하는 것을 특징으로 한다.In addition, the valve seat member is characterized in that it comprises a flange portion coupled to the other end of the bore, and a valve seat portion to form an inlet for the fluid flow into the compression chamber.

또한, 상기 모듈레이터블록 내부의 기밀을 유지시키고 상기 밸브시트부재와 함께 흡입유로를 형성시키는 커버를 더 포함하고, 상기 플랜지부와 상기 커버가 상기 흡입유로를 형성하는 것을 특징으로 한다.The apparatus may further include a cover for maintaining an airtight inside the modulator block and forming a suction passage together with the valve seat member, wherein the flange portion and the cover form the suction passage.

또한, 상기 인렛밸브는 상기 밸브시트부를 개폐하는 인렛개폐부재와, 상기 인렛개폐부재가 상기 밸브시트부를 개폐하도록 탄성지지하는 인렛스프링과, 상기 인렛개폐부재 및 인렛스프링을 수용하는 홀더를 포함하는 것을 특징으로 한다.The inlet valve may include an inlet opening and closing member for opening and closing the valve seat, an inlet spring for elastically supporting the inlet opening and closing member for opening and closing the valve seat, and a holder for receiving the inlet opening and closing member and the inlet spring. It features.

또한, 상기 피스톤의 단부와 상기 홀더 사이에 상기 피스톤을 탄성 지지하는 스프링을 포함하는 것을 특징으로 한다.In addition, it characterized in that it comprises a spring for elastically supporting the piston between the end of the piston and the holder.

이하 본 발명에 따른 브레이크 시스템의 펌프에 관한 바람직한 실시예를 도면을 참조하여 설명하기로 한다.Hereinafter, a preferred embodiment of a pump of a brake system according to the present invention will be described with reference to the drawings.

도 2는 본 발명에 따른 브레이크 시스템의 펌프를 나타낸 단면도로서 모듈레이터블록(200) 내부에 보어(210)가 형성되고 상기 보어(210)의 일단부측으로부터 소정 구간을 피스톤(300)이 직선왕복운동한다. 상기 피스톤(300)은 모터(100)와 스핀들(110), 그리고 편심축(120)이 편심회전을 하면서 상기 편심축(120)에 결합된 베어링(130)에 의해 구동된다. 상기 피스톤(300)의 외주면에는 하나의 씰링부재(310)가 구비된다.2 is a cross-sectional view showing a pump of the brake system according to the present invention, the bore 210 is formed inside the modulator block 200 and the piston 300 linearly reciprocates a predetermined section from one end side of the bore 210. . The piston 300 is driven by a bearing 130 coupled to the eccentric shaft 120 while the motor 100, the spindle 110, and the eccentric shaft 120 rotate eccentrically. One sealing member 310 is provided on the outer circumferential surface of the piston 300.

상기 보어(210)의 피스톤(300)이 설치된 쪽의 반대쪽의 단부에는 밸브시트부재(520)가 설치되고 상기 밸브시트부재(520)와 상기 피스톤(300) 사이에는 오일이 압축되는 압축실(400)이 형성된다. 상기 밸브시트부재(520)는 보어(210)의 단부에 설치되어 흡입유로(530)를 형성하는 플랜지부(522)와, 상기 플랜지부(522)로부터 상기 피스톤(300)측으로 절곡되어 상기 흡입유로(530)로부터 상기 압축실(400)로 오일이 유입되는 입구를 형성하는 밸브시트부(521)를 포함하고, 상기 밸브시트부(521)를 개폐하는 인렛밸브(500)가 상기 밸브시트부(521)에 설치된다.A valve seat member 520 is installed at an end of the bore 210 opposite to the side where the piston 300 is installed, and a compression chamber 400 in which oil is compressed between the valve seat member 520 and the piston 300. ) Is formed. The valve seat member 520 is installed at an end of the bore 210 to form a suction passage 530, and a flange portion 522, bent from the flange portion 522 toward the piston 300 to the suction passage And a valve seat portion 521 for forming an inlet through which oil flows from the 530 to the compression chamber 400, and an inlet valve 500 for opening and closing the valve seat portion 521 is provided with the valve seat portion ( 521).

상기 인렛밸브는(500)는 상기 밸브시트부(521)를 개폐하는 인렛개폐부재(510)와 상기 인렛개폐부재(510)가 상기 밸브시트부(521)를 개폐하도록 탄성지지하는 인렛스프링(550), 그리고 상기 인렛개폐부재(510) 및 인렛스프링(550)을 수용하는 홀더(540)를 포함한다. 상기 홀더(540)는 피스톤(300)과 밸브시트부재(520) 사이에 설치되어 상기 피스톤(300)을 탄성지지하는 스프링(410)에 의해 고정된다.The inlet valve 500 includes an inlet opening and closing member 510 for opening and closing the valve seat 521 and an inlet spring 550 elastically supporting the inlet opening and closing member 510 for opening and closing the valve seat 521. And a holder 540 for receiving the inlet opening and closing member 510 and the inlet spring 550. The holder 540 is installed between the piston 300 and the valve seat member 520 and is fixed by a spring 410 that elastically supports the piston 300.

상기 흡입유로(530)는 모듈레이터블록(200)의 단부에서 그 내부를 밀폐시키기 위해 설치된 커버(700)와 상기 밸브시트부재(520)에 의해 형성되며 상기 흡입유로(530)는 상기 모듈레이터블록(200)에 형성되어 외부의 저압어큐뮬레이터(미도시) 등으로부터 오일이 유입되는 흡입포트(230)와 연결된다.The suction passage 530 is formed by a cover 700 and the valve seat member 520 installed to seal the inside thereof at the end of the modulator block 200, and the suction passage 530 is the modulator block 200. It is formed in the) is connected to the suction port 230, the oil is introduced from the external low pressure accumulator (not shown).

한편, 상기 압축실(400)을 이루는 보어(210)의 측면 쪽에는 상기 압축실(400)에서 압축된 오일이 토출되는 토출유로(630)를 형성하는 아웃렛밸브시트(620)가 설치된다. 상기 아웃렛밸브시트(620)와 당접하여 아웃렛스프링(650)에 의해 탄성지지되는 아웃렛개폐부재(610)가 구비되어 상기 아웃렛밸브시트(620)를 개폐하며 상기 토출유로(630)를 상기 압축실(400)과 연통시키거나 차단시킨다. 상기 토출유로(630)의 단부에는 오리피스(640)가 토출포트(220)와 연결되어 설치된다. 상기와 같이 토출유로(630)와 오리피스(640)와 토출포트(220)가 일직선상에 설치되어 압축된 오일이 토출될 때 압력 손실 없이 곧바로 토출될 수 있다.Meanwhile, an outlet valve seat 620 is formed at a side of the bore 210 constituting the compression chamber 400 to form a discharge passage 630 through which the oil compressed in the compression chamber 400 is discharged. The outlet opening / closing member 610 which is in contact with the outlet valve seat 620 and elastically supported by the outlet spring 650 is provided to open and close the outlet valve seat 620 and the discharge passage 630 is opened in the compression chamber ( Or in communication with 400). An orifice 640 is connected to the discharge port 220 at an end of the discharge passage 630. As described above, the discharge passage 630, the orifice 640, and the discharge port 220 may be installed in a straight line, and may be immediately discharged without pressure loss when the compressed oil is discharged.

또한, 상기 아웃렛밸브시트(620)는 피스톤(300) 측과 인렛밸브(500) 측의 사이에 설치됨으로써 피스톤(300)은 보어(210)의 일단부로부터 상기 아웃렛밸브시트(620)가 설치된 위치 부근까지만 슬라이딩 운동을 하면 되므로 그 길이를 짧게 할 수 있고, 또 피스톤(300)의 길이가 짧아지기 때문에 피스톤(300)에는 과다하게 압력이 걸리는 부분이 줄어들게 되어 별도의 완충작용을 하는 백업부재 등이 필요없으며 하나의 씰링부재(310)만 설치되어도 좋은 성능을 발휘할 수 있다.In addition, the outlet valve seat 620 is installed between the piston 300 side and the inlet valve 500 side, so that the piston 300 has the outlet valve seat 620 installed from one end of the bore 210. Since the sliding movement only needs to be performed in the vicinity, the length can be shortened, and since the length of the piston 300 is shortened, an excessive pressure portion is reduced in the piston 300, so that a backup member having a separate cushioning function is provided. It is not necessary, even if only one sealing member 310 is installed can exhibit a good performance.

또한 피스톤(300)의 길이를 줄이고 아웃렛밸브(600)를 상기 피스톤(300)과 인렛밸브(500) 사이에 위치시킬 수 있기 때문에 전체적인 펌프의 사이즈를 컴팩트하게 구성할 수 있다. 즉 종래와 같이 피스톤과 인렛밸브와 아웃렛밸브를 일직선상으로 배치함으로 말미암은 공간상의 제약을 극복하고 좀 더 짜임새 있는 배치가 가능한 특징이 있다.In addition, since the length of the piston 300 can be reduced and the outlet valve 600 can be positioned between the piston 300 and the inlet valve 500, the size of the overall pump can be made compact. That is, by arranging the piston, the inlet valve and the outlet valve in a straight line as in the prior art, it is possible to overcome the space constraints caused by the more structured arrangement.

이하 본 발명에 따른 브레이크 시스템의 펌프의 작동에 관하여 도 2를 참조하여 설명하기로 한다.Hereinafter, the operation of the pump of the brake system according to the present invention will be described with reference to FIG. 2.

흡입포트(230)를 통해 흡입유로(530)로 유입된 오일은 피스톤(300)의 후퇴운동에 의해 압축실(400) 내부의 압력이 낮아져 인렛개폐부재(510)를 열고 압축실(400)로 유입되고, 다시 피스톤(300)이 베어링(130)에 의해 압축 동작을 하면 인렛개폐부재(510)는 압축실(400)의 압력이 증가할 수록 더욱 밸브시트부(521)를 강하게 폐쇄하고 압축실(400) 내부의 오일은 압축이 이루어진다.The oil introduced into the suction flow path 530 through the suction port 230 is lowered in the compression chamber 400 by the retraction movement of the piston 300 to open the inlet opening and closing member 510 to the compression chamber 400. When the piston 300 is compressed again by the bearing 130, the inlet opening and closing member 510 closes the valve seat 521 more strongly as the pressure of the compression chamber 400 increases, and the compression chamber is compressed. The oil inside the 400 is compressed.

오일의 압축에 의해 압축실(400) 내부의 오일의 압력이 증가하면 아웃렛개폐부재(610)는 그 압력에 의해 열리게 되고 압축된 오일은 토출유로(630)로 유동하며 오리피스(640)를 지나 토출포트(220)를 통해 외부의 기관으로 오일이 토출된다.When the pressure of the oil inside the compression chamber 400 increases due to the compression of the oil, the outlet opening and closing member 610 is opened by the pressure, and the compressed oil flows into the discharge passage 630 and discharges through the orifice 640. The oil is discharged to the external engine through the port 220.

상기와 같은 특징으로 갖는 본 발명에 따른 브레이크 시스템의 펌프는 오일이 압축되어 토출될 때의 압력 손실이 줄어들어 펌프의 성능을 더욱 향상시키고, 피스톤의 길이를 단축시켜 피스톤에 걸리는 과다한 압력의 영향을 저감시켜 피스톤 뿐만 아니라 전체 펌프의 내구성을 증가시키며, 전체적인 펌프의 사이즈를 컴팩트하게 구성할 수 있는 특장점이 있다.Pump of the brake system according to the present invention having the above characteristics is reduced pressure loss when the oil is compressed and discharged to further improve the performance of the pump, shorten the length of the piston to reduce the effect of excessive pressure on the piston This increases the durability of the entire pump as well as the piston, and has the advantage of making the overall size of the pump compact.

Claims (6)

모듈레이터블록에 형성된 보어의 일단부로부터 소정 구간 직선왕복운동하는 피스톤; 상기 보어의 타단부에 설치되어 흡입유로를 형성하는 밸브시트부재; 상기 피스톤과 상기 밸브시트부재 사이에 형성된 압축실; 상기 밸브시트부재 측에 설치되어 상기 흡입유로와 상기 압축실을 연통시키거나 차단시키는 인렛밸브; 상기 압축실과 연통되는 토출유로를 형성하는 아웃렛밸브시트; 및 상기 아웃렛밸브시트를 개폐하여 상기 토출유로와 상기 압축실을 연통시키거나 차단시키는 아웃렛밸브를 포함하고,A piston linearly reciprocating a predetermined section from one end of the bore formed in the modulator block; A valve seat member installed at the other end of the bore to form a suction passage; A compression chamber formed between the piston and the valve seat member; An inlet valve installed at the valve seat member to communicate or block the suction flow path and the compression chamber; An outlet valve seat forming a discharge passage communicating with the compression chamber; And an outlet valve for opening and closing the outlet valve seat to communicate or block the discharge passage and the compression chamber. 상기 밸브시트부재는 상기 보어의 타단부에 결합되는 플랜지부와, 상기 압축실로 유체가 유입되는 입구를 형성하는 밸브시트부를 포함하는 것을 특징으로 하는 브레이크 시스템의 펌프.The valve seat member includes a flange portion coupled to the other end of the bore, and a valve seat portion to form a valve seat portion to form an inlet for the fluid flow into the compression chamber. 제1항에 있어서,The method of claim 1, 상기 아웃렛밸브시트는 상기 압축실을 형성하는 보어의 측면에 설치된 것을 특징으로 하는 브레이크 시스템의 펌프.The outlet valve seat is a pump of the brake system, characterized in that installed on the side of the bore forming the compression chamber. 삭제delete 제1항에 있어서,The method of claim 1, 상기 모듈레이터블록 내부의 기밀을 유지시키고 상기 밸브시트부재와 함께 흡입유로를 형성시키는 커버를 더 포함하고, 상기 플랜지부와 상기 커버가 상기 흡입유로를 형성하는 것을 특징으로 하는 브레이크 시스템의 펌프.And a cover for maintaining an airtight inside the modulator block and forming a suction passage together with the valve seat member, wherein the flange portion and the cover form the suction passage. 제1항에 있어서,The method of claim 1, 상기 인렛밸브는 상기 밸브시트부를 개폐하는 인렛개폐부재와, 상기 인렛개폐부재가 상기 밸브시트부를 개폐하도록 탄성지지하는 인렛스프링과, 상기 인렛개폐부재 및 인렛스프링을 수용하는 홀더를 포함하는 것을 특징으로 하는 브레이크 시스템의 펌프.The inlet valve includes an inlet opening and closing member for opening and closing the valve seat, an inlet spring for elastically supporting the inlet opening and closing member for opening and closing the valve seat, and a holder for receiving the inlet opening and closing member and the inlet spring. Pump of the brake system. 제5항에 있어서,The method of claim 5, 상기 피스톤의 단부와 상기 홀더 사이에 상기 피스톤을 탄성 지지하는 스프링을 포함하는 것을 특징으로 하는 브레이크 시스템의 펌프.A spring for elastically supporting the piston between an end of the piston and the holder.
KR1020060037203A 2006-04-25 2006-04-25 Pump of brake system Active KR101105151B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000120528A (en) * 1998-10-15 2000-04-25 Robert Bosch Gmbh Piston pump
KR100493784B1 (en) * 2003-08-19 2005-06-08 주식회사 만도 Pump of electronic control brake system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000120528A (en) * 1998-10-15 2000-04-25 Robert Bosch Gmbh Piston pump
KR100493784B1 (en) * 2003-08-19 2005-06-08 주식회사 만도 Pump of electronic control brake system

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