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KR101405380B1 - Piston pump of vehicle - Google Patents

Piston pump of vehicle Download PDF

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Publication number
KR101405380B1
KR101405380B1 KR1020070133788A KR20070133788A KR101405380B1 KR 101405380 B1 KR101405380 B1 KR 101405380B1 KR 1020070133788 A KR1020070133788 A KR 1020070133788A KR 20070133788 A KR20070133788 A KR 20070133788A KR 101405380 B1 KR101405380 B1 KR 101405380B1
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South Korea
Prior art keywords
orifice
hole
oil
ball
vehicle
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KR1020070133788A
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Korean (ko)
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KR20090066156A (en
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김영규
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현대모비스 주식회사
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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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명은 브레이크 시스템을 위한 차량의 피스톤펌프에 있어서, 오일이 토출되는 홀이 형성된 밸브시트와, 상기 홀을 개폐시키는 볼과, 상기 볼에 탄성력을 제공하는 탄성부재와, 상기 밸브시트에 결합되어 상기 홀에서 토출된 오일의 압력을 감압시키는 오리피스와, 상기 오리피스 및 상기 탄성부재가 지지되는 캡을 포함하고, 상기 밸브시트의 홀을 통해 토출된 오일의 압력을 감압시키는 오리피스가 배치되어 차량의 제동 시 브레이크 페달로 전달되는 맥동력을 감소시키며, 이를 통해 운전자의 감성을 만족시키는 효과가 있다. The present invention relates to a piston pump for a vehicle for a braking system, which comprises a valve seat having a hole through which oil is discharged, a ball for opening and closing the hole, an elastic member for providing an elastic force to the ball, An orifice for reducing the pressure of the oil discharged from the hole and a cap for supporting the orifice and the elastic member and an orifice for reducing the pressure of the oil discharged through the hole of the valve seat is disposed, The brake force transmitted to the brake pedal is reduced, thereby satisfying the sensibility of the driver.

Description

차량의 피스톤펌프{Piston pump of vehicle}[0001] Piston pump of vehicle [0002]

본 발명은 차량의 피스톤펌프에 관한 것으로, 보다 상세하게는 차량의 ABS에 설치되어 유압의 토출 시 발생되는 맥동력을 저감시키는 차량의 피스톤펌프에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a piston pump of a vehicle, and more particularly, to a piston pump of a vehicle that is installed in an ABS of a vehicle and reduces pulsating power generated when oil pressure is discharged.

일반적으로, 브레이크 시스템은 차량의 슬립현상을 효율적으로 방지하여 강력하고 안정된 제동력을 얻기 위한 것으로, 제동 시 휠의 미끄러짐을 방지하는 안티록 브레이크 시스템(Anti-Lock Brake System, ABS)과, 차량의 급발진 또는 급가속 시 구동륜의 슬립을 방지하는 브레이크 트랙션 제어 시스템(Brake Traction Control System, BTCS)과, 안티록 브레이크 시스템과 트랙션 제어를 조합하여 브레이크 액압을 제어함으로써 차량의 주행상태를 안정적으로 유지시키는 차량자세 제어 시스템(Vehicle Dynamic Control System, VDC) 등이 개시되어 있다. BACKGROUND ART [0002] Generally, a brake system is a system for effectively preventing a slip phenomenon of a vehicle and thereby obtaining a strong and stable braking force. The brake system includes an anti-lock brake system (ABS) A brake traction control system (BTCS) for preventing slippage of a drive wheel during rapid acceleration, and a vehicle attitude control system for controlling the brake fluid pressure by combining an anti-lock brake system and traction control to stably maintain the running state of the vehicle A control system (Vehicle Dynamic Control System, VDC), and the like.

이러한, 브레이크 시스템은 차량의 휠에 장착된 유압브레이크 측으로 전달되는 제동유압을 제어하기 위한 다수개의 솔레노이드밸브와, 유압브레이크로부터 빠 져나온 오일을 일시 저장하기 위한 한 쌍의 저압 어큐뮬레이터 및 고압 어큐뮬레이터와, 저압 어큐뮬레이터의 오일을 강제 펌핑하기 위한 모터 및 펌프와, 솔레노이드밸브와 모터의 구동을 제어하기 위한 ECU를 포함하고 있으며, 이러한 구성요소들은 모듈레이터 블록에 콤팩트하게 내장되어 있다. 따라서, 펌프의 구동으로 저압 어큐뮬레이터의 저압상태 오일이 가압되어 고압 어큐뮬레이터로 펌핑되며, 이것은 유압브레이크 또는 마스터실린더 어셈블리 측으로 전달된다. 이러한 펌프는 모터에 의해 구동되며, 이러한 펌프 구조로서, 한국 특허 공개 번호 제 2001-0097094호, 한국 특허 공개 번호 제 2002-0069784호, 한국 특허 공개 번호 제 2003-0067839호의 공보에 제시되어 있다.The brake system includes a plurality of solenoid valves for controlling braking hydraulic pressure transmitted to a hydraulic brake side mounted on a wheel of a vehicle, a pair of low-pressure accumulators and a high-pressure accumulator for temporarily storing the oil extracted from the hydraulic brakes, A motor and a pump for forcibly pumping the oil of the low pressure accumulator, and an ECU for controlling the solenoid valve and the driving of the motor, and these components are compactly built in the modulator block. Thus, by driving the pump, the low pressure oil of the low pressure accumulator is pressurized and pumped to the high pressure accumulator, which is delivered to the hydraulic brake or master cylinder assembly side. Such a pump is driven by a motor, and such a pump structure is disclosed in Korean Patent Laid-Open Nos. 2001-0097094, 2002-0069784, and 2003-0067839.

도 1은 종래 기술에 따른 브레이크 시스템용 피스톤펌프가 도시된 단면도이고, 도 2는 종래 기술에 따른 다른 브레이크 시스템용 피스톤펌프가 도시된 일부 절개 단면도이다. Fig. 1 is a cross-sectional view showing a piston pump for a brake system according to the prior art, and Fig. 2 is a partial cross-sectional view showing a piston pump for another brake system according to the prior art.

종래의 브레이크 시스템용 피스톤펌프로서, 도 1에 제시되어 있다. 도 1에 도시한 바와 같이, 종래의 브레이크 시스템용 펌프는 모터의 편심 캠에 의해 왕복 운동하도록 모듈레이터 블록(20)에 형성된 보어 내에 설치되며 내부에 흡입유로(12a)가 형성된 밸브 인서트(12)와, 밸브 인서트(12)의 위치에 따라 흡입유로(12a)의 출구 측을 개폐하는 인렛 밸브(13)와, 보어의 개방단부에 마련되어 인렛 밸브(13)와 상반되게 작동하는 아웃렛 밸브(17)를 갖추고 있다. 그리고, 모듈레이터 블록(20)에는 밸브 인서트(12) 흡입유로(12a)의 입구 측과 저압 어큐뮬레이터(미도시)를 연계시키기 위한 흡입포트(20a)와, 고압 어큐뮬레이터(미도시)의 입구 측과 아웃렛 밸브(17)의 출구 측을 연계시키기 위한 토출포트(20b)가 가공되어 있다. 또한, 밸브인서트(12)의 선단부에는 인렛 밸브(13)가 설치되어 있다.A conventional piston pump for a brake system is shown in Fig. As shown in FIG. 1, the conventional brake system pump includes a valve insert 12 provided in a bore formed in a modulator block 20 so as to reciprocate by an eccentric cam of a motor and having a suction passage 12a formed therein, An inlet valve 13 which opens and closes the outlet side of the suction passage 12a in accordance with the position of the valve insert 12 and an outlet valve 17 which is provided at the open end of the bore and operates in an opposite manner to the inlet valve 13 It is equipped. The modulator block 20 is provided with a suction port 20a for connecting the inlet side of the suction passage 12a of the valve insert 12 with a low pressure accumulator (not shown), and a suction port 20b for connecting the inlet side of the high pressure accumulator And a discharge port 20b for connecting the outlet side of the valve 17 is formed. Further, an inlet valve 13 is provided at the tip end of the valve insert 12.

이와 같이, 구성된 종래의 브레이크 시스템용 펌프는 모터의 편심 캠이 회전함에 따라 밸브 인서트(12)가 왕복운동하며, 보어 내부의 압력변화에 의해 서로 상반되게 인렛 밸브(13)와 아웃렛 밸브(17)가 개폐 작동함으로써, 오일이 가압되면서 고압 어큐뮬레이터 측으로 펌핑된다. The conventional brake system pump configured as described above is constructed such that the valve insert 12 reciprocates as the eccentric cam of the motor rotates and the inlet valve 13 and the outlet valve 17 are reciprocated counterclockwise by the pressure change inside the bore, The oil is pumped to the high pressure accumulator side while being pressurized.

그런데 종래 기술에 따른 피스톤펌프의 특성상 오일이 불연속적으로 토출됨으로서 오일이 토출될 때 맥동력이 발생되고, 이 맥동력이 브레이크 페달을 통해 운전자에게 전달되어 불쾌감을 야기시키는 문제점이 있다. However, due to the characteristics of the conventional piston pump, the oil is discontinuously discharged, generating pulsating power when the oil is discharged, and the pulsating power is transmitted to the driver through the brake pedal to cause discomfort.

본 발명은 차량의 ABS에 설치되어 유압의 토출 시 발생되는 맥동력을 저감시키는 차량의 피스톤펌프를 제공하는데 목적이 있다. An object of the present invention is to provide a piston pump for a vehicle that is installed in an ABS of a vehicle and reduces the pulsating power generated when the hydraulic pressure is discharged.

본 발명은 브레이크 시스템을 위한 차량의 피스톤펌프에 있어서, 오일이 토출되는 홀이 형성된 밸브시트와, 상기 홀을 개폐시키는 볼과, 상기 볼에 탄성력을 제공하는 탄성부재와, 상기 밸브시트에 결합되어 상기 홀에서 토출된 오일의 압력을 감압시키는 오리피스와, 상기 오리피스 및 상기 탄성부재가 지지되는 캡을 포함 하는 차량의 피스톤펌프를 제공한다. The present invention relates to a piston pump for a vehicle for a braking system, which comprises a valve seat having a hole through which oil is discharged, a ball for opening and closing the hole, an elastic member for providing an elastic force to the ball, An orifice for reducing the pressure of the oil discharged from the hole, and a cap for supporting the orifice and the elastic member.

여기서 상기 밸브시트는 상기 오리피스와의 결합을 위한 결합부가 돌출되어 형성될 수 있다. The valve seat may be formed by protruding an engaging portion for engaging with the orifice.

그리고 상기 오리피스 및 상기 캡 사이에 댐퍼가 더 배치될 수 있다. Further, a damper may be disposed between the orifice and the cap.

또한, 상기 오리피스의 일단은 상기 댐퍼에 고정되고 타단은 상기 밸브시트에 고정되며, 상기 밸브시트는 상기 오리피스와의 결합을 위한 결합부가 돌출되어 형성되고, 상기 오리피스는 상기 댐퍼의 내측으로 삽입되어 상기 댐퍼에 고정되는 원통부와, 상기 결합부를 감싸며 고정되는 플랜지부를 포함할 수 있다. The valve seat is formed by protruding an engaging portion for engaging with the orifice, and the orifice is inserted into the damper, and the valve seat is inserted into the damper, A cylindrical portion fixed to the damper, and a flange portion fixedly surrounding the coupling portion.

또한, 상기 오리피스의 측부에는 감압된 오일이 토출되는 절개부가 형성될 수 있다.In addition, a cutout portion through which the reduced-pressure oil is discharged may be formed on the side of the orifice.

본 발명은 밸브시트의 홀을 통해 토출된 오일의 압력을 감압시키는 오리피스가 배치되어 차량의 제동 시 브레이크 페달로 전달되는 맥동력을 감소시키고, 이를 통해 운전자의 감성을 만족시키는 효과가 있다. According to the present invention, an orifice for reducing the pressure of the oil discharged through the hole of the valve seat is disposed to reduce the pulsating force transmitted to the brake pedal during braking of the vehicle, thereby satisfying the sensibility of the driver.

도 3은 본 발명의 일 실시예에 따른 차량의 브레이크 시스템을 위한 피스톤펌프가 도시된 일부 분해사시도이고, 도 4는 도 3의 일부 결합 사시도이다. FIG. 3 is a partially exploded perspective view showing a piston pump for a braking system of a vehicle according to an embodiment of the present invention, and FIG. 4 is a partially assembled perspective view of FIG.

도 3 또는 도 4에 도시된 바와 같이, 본 실시예에 따른 차량의 피스톤펌 프(100)는 종래기술의 피스톤펌프와 유사하되, 아웃렛밸브 부분의 구조를 변경하여 오일의 맥동력을 저감시킨다. As shown in FIG. 3 or 4, the piston pump 100 of the vehicle according to the present embodiment is similar to the piston pump of the related art, and changes the structure of the outlet valve portion to reduce the pulsating power of the oil.

여기서 본 실시예에 따른 피스톤펌프(100)는 밸브인서트(도 1의 12)에 의해 가압된 오일이 토출되는 밸브시트(50)와, 상기 밸브시트(50)의 홀(52)을 개폐시키는 볼(60)과, 상기 볼(60)에 탄성력을 제공하는 탄성부재(65)와, 상기 홀(52)에서 토출된 오일의 압력을 감압시키는 오리피스(70)와, 상기 오리피스(70)를 지지하는 댐퍼(80)와, 상기 댐퍼(80) 및 상기 탄성부재(65)를 지지하는 캡(90)을 포함한다. The piston pump 100 according to the present embodiment includes a valve seat 50 through which the oil pressurized by the valve insert 12 is disengaged from the valve seat 50, An orifice 70 for reducing the pressure of the oil discharged from the hole 52 and an orifice 70 for supporting the orifice 70, A damper 80, and a cap 90 for supporting the damper 80 and the elastic member 65.

상기 밸브시트(50)는 중앙에 상기 홀(52)이 형성되고, 상기 홀(52)이 형성된 주위는 상기 오리피스(70)와의 결합을 위해 돌출된 결합부(54)가 형성된다. The hole 52 is formed in the center of the valve seat 50 and a coupling portion 54 protruded for coupling with the orifice 70 is formed at the periphery where the hole 52 is formed.

상기 볼(60)은 상기 결합부(54)에 안착되어 상기 홀(52)을 폐쇄하고, 상기 홀(52)을 통해 소정 압력 이상의 오일이 토출될 때 밀려 이동되면서 상기 홀(52)을 개방시킨다. The ball 60 is seated on the engaging portion 54 to close the hole 52 and open the hole 52 while being pushed and moved when oil over a predetermined pressure is discharged through the hole 52 .

여기서 상기 탄성부재(65)는 일단이 상기 캡(90)에 지지되고 타단이 상기 볼(60)에 지지되어 상기 볼(60)에 탄성력을 제공하는 코일스프링이다. 그래서 오일의 토출 시 밀려 이동된 상기 볼(60)은 상기 탄성부재(65)의 탄성력에 의해 원위치로 복귀된다. The elastic member 65 is a coil spring whose one end is supported by the cap 90 and the other end is supported by the ball 60 to provide an elastic force to the ball 60. Therefore, the ball 60 moved in the pushed state during the discharge of the oil is returned to the original position by the elastic force of the elastic member 65.

상기 오리피스(70)는 내측에 상기 탄성부재(65) 및 상기 볼(60)이 배치된다. The orifice 70 has the elastic member 65 and the ball 60 disposed therein.

더불어 상기 오리피스(70)는 일단(72)이 상기 댐퍼(80)의 내측으로 삽입되어 프레스 고정되고, 타단(74)이 상기 결합부(54)를 감싸도록 결합되어 프레스 고정된다. In addition, the one end 72 of the orifice 70 is inserted into the damper 80 to be press-fixed and the other end 74 of the orifice 70 is coupled to the coupling portion 54 to be press-fixed.

특히 상기 오리피스(70)의 타단(74) 내측으로 상기 결합부(54)가 삽입됨과 아울러 상기 밸브시트(50)의 일면(51)에 밀착된다. Particularly, the engaging portion 54 is inserted into the other end 74 of the orifice 70, and is also brought into close contact with the one surface 51 of the valve seat 50.

그래서 상기 오리피스(70)는 상기 댐퍼(80)의 내측으로 삽입되는 원통부(76)와, 상기 밸브시트(50)의 일면(51)에 밀착되는 플랜지부(78)을 포함하여 구성된다. The orifice 70 includes a cylindrical portion 76 that is inserted into the damper 80 and a flange portion 78 that is in close contact with the one surface 51 of the valve seat 50.

또한, 상기 오리피스(70)는 상기 홀(52)을 통해 토출된 오일이 배출되도록 일부가 절개되어 형성된 절개부(79)가 형성된다. In addition, the orifice 70 is formed with a cut-out portion 79 formed by partially cutting the oil discharged through the hole 52.

상기 댐퍼(80)는 링 형상으로 형성되고, 내측에 상기 오리피스(70)의 일단(72)이 삽입되어 고정되며, 일단(82)이 상기 캡(90)에 지지되고 타단(84)이 상기 오리피스(70)의 플랜지부(78)에 지지된다. The damper 80 is formed in a ring shape and one end 72 of the orifice 70 is inserted and fixed to the inside and one end 82 is supported by the cap 90 and the other end 84 is connected to the orifice 70. [ Is supported by the flange portion (78) of the flange portion (70).

상기 캡(90)은 상기 댐퍼(80) 및 상기 오리피스(70)의 일단 측을 막아 오일이 상기 절개부(79)를 통해 이동되게 한다. The cap 90 blocks one end of the damper 80 and the orifice 70 to allow the oil to move through the cutout 79.

또한, 상기 오리피스(70) 및 상기 캡(90)은 프레스로 가공되어 형성되고, 상기 댐퍼(80)는 단조 가공되어 형성된다. Also, the orifice 70 and the cap 90 are formed by pressing, and the damper 80 is formed by forging.

이와 같이, 본 실시예에 따른 피스톤펌프(100)는 홀(52)을 통해 토출된 오일이 오리피스(70)를 통과하면서 감압되어 차량의 브레이크페달에 전달되는 맥동력을 저감시킨다. As described above, the piston pump 100 according to the present embodiment reduces the pressure of the oil discharged through the holes 52 through the orifice 70 to reduce the pulsating force transmitted to the brake pedal of the vehicle.

특히, 상기 홀(52)에서 토출되는 오일의 압력은 대략 20bar 정도이나, 본 실시예와 같은 오리피스(70)가 적용될 경우 절개부(79)를 통과하는 오일의 압력은 5bar정도로 감압된다. Particularly, the pressure of the oil discharged from the hole 52 is about 20 bar. However, when the orifice 70 as in the present embodiment is applied, the pressure of the oil passing through the cut-out portion 79 is reduced to about 5 bar.

한편, 본 발명은 본 명세서에 제시된 실시예와 도면에 의해 한정되지 않고, 본 발명의 기술사상이 보호되는 범위 이내에서 당업자에 의해 응용이 가능하다.The present invention is not limited to the embodiments and drawings shown in the present specification, but can be applied by those skilled in the art within the scope of the technical idea of the present invention.

도 1은 종래 기술에 따른 브레이크 시스템용 피스톤펌프가 도시된 단면도1 shows a cross-sectional view of a piston pump for a brake system according to the prior art,

도 2는 종래 기술에 따른 다른 브레이크 시스템용 피스톤펌프가 도시된 일부 절개 단면도Figure 2 is a partial cross-sectional view of a piston pump for another brake system according to the prior art,

도 3은 본 발명의 일 실시예에 따른 차량의 브레이크 시스템을 위한 피스톤펌프가 도시된 일부 분해사시도3 is a partially exploded perspective view showing a piston pump for a brake system of a vehicle according to an embodiment of the present invention.

도 4는 도 3의 일부 결합 사시도Fig. 4 is a partially assembled perspective view of Fig.

<도면의 부호에 관한 간략한 설명>BRIEF DESCRIPTION OF THE DRAWINGS FIG.

50 : 밸브시트 52 : 홀50: valve seat 52: hole

54 : 결합부 60 : 볼54: engaging portion 60: ball

65 : 탄성부재 70 : 오리피스65: elastic member 70: orifice

72 : 일단 74 : 타단72: Once 74:

76 : 원통부 78 : 플랜지부76: cylindrical portion 78: flange portion

79 : 절개부 80 : 댐퍼79: incision section 80: damper

90 : 캡 100 : 피스톤펌프90: Cap 100: Piston pump

Claims (6)

브레이크 시스템을 위한 차량의 피스톤펌프에 있어서, A piston pump of a vehicle for a brake system, 오일이 토출되도록 중앙에 홀이 형성되고, 상기 홀 주위에 돌출되게 결합부가 형성된 밸브시트;A valve seat having a hole formed at a center thereof for discharging the oil and having an engaging portion projecting around the hole; 상기 결합부에 안착되어 상기 홀을 폐쇄하고, 상기 오일이 토출될 때 이동되어 상기 홀을 개방시키는 볼;A ball seated on the coupling portion to close the hole and move when the oil is discharged to open the hole; 상기 볼에 탄성력을 제공하도록 상기 볼에 지지되는 탄성부재;An elastic member supported on the ball to provide an elastic force to the ball; 내측에 상기 탄성부재 및 상기 볼이 배치되고, 상기 밸브시트의 일면에 밀착되는 플랜지부가 형성되는 오리피스;An orifice in which the elastic member and the ball are disposed on an inner side and a flange portion which is in close contact with one surface of the valve seat is formed; 상기 오리피스의 일단 측을 막아 상기 오일이 이동되게 하는 캡; 및A cap that closes one end of the orifice to allow the oil to move; And 링 형상으로 형성되어 내측에 상기 오리피스의 일단이 삽입되어 고정되고, 타단이 상기 플랜지부에 지지되도록 상기 오리피스 및 상기 캡 사이에 배치되는 댐퍼;를 포함하고,And a damper formed in a ring shape and disposed between the orifice and the cap so that one end of the orifice is inserted and fixed to the inside and the other end is supported to the flange, 상기 오리피스는,The orifice 상기 홀을 통해 토출된 오일이 배출되도록 상기 오리피스의 일부측에 절개부가 형성되는 차량의 피스톤 펌프.And an incision is formed on a part of the orifice so that the oil discharged through the hole is discharged. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020070133788A 2007-12-18 2007-12-18 Piston pump of vehicle Expired - Fee Related KR101405380B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000025988A (en) * 1998-10-16 2000-05-06 밍 루 Hydraulic type high-pressure pump for braking vehicle
KR20020081430A (en) * 2000-03-21 2002-10-26 콘티넨탈 테베스 아게 운트 코. 오하게 Piston pump
US20040166004A1 (en) * 2001-03-14 2004-08-26 Edgar Schmitt Piston pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000025988A (en) * 1998-10-16 2000-05-06 밍 루 Hydraulic type high-pressure pump for braking vehicle
KR20020081430A (en) * 2000-03-21 2002-10-26 콘티넨탈 테베스 아게 운트 코. 오하게 Piston pump
US20040166004A1 (en) * 2001-03-14 2004-08-26 Edgar Schmitt Piston pump

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