KR100257014B1 - A diesel engine brake - Google Patents

A diesel engine brake Download PDF

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Publication number
KR100257014B1
KR100257014B1 KR1019960070707A KR19960070707A KR100257014B1 KR 100257014 B1 KR100257014 B1 KR 100257014B1 KR 1019960070707 A KR1019960070707 A KR 1019960070707A KR 19960070707 A KR19960070707 A KR 19960070707A KR 100257014 B1 KR100257014 B1 KR 100257014B1
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KR
South Korea
Prior art keywords
vacuum
chamber
piston
booster
vacuum pipe
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KR1019960070707A
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Korean (ko)
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KR19980051791A (en
Inventor
김영운
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR1019960070707A priority Critical patent/KR100257014B1/en
Publication of KR19980051791A publication Critical patent/KR19980051791A/en
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Publication of KR100257014B1 publication Critical patent/KR100257014B1/en

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Classifications

    • 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
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • 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
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/11—Passenger cars; Automobiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/145—Haulage vehicles, trailing trucks

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

PURPOSE: A brake system delays release time of vacuum of a booster when negative pressure is not generated in a vacuum pump to prevent accident due to the braking performance failure. CONSTITUTION: A brake system comprises a check valve(100), a vacuum tank(200), a three way solenoid valve(300) and a relay(400). The check valve(100) is connected on the middle of a vacuum pipe(40) connecting a vacuum pump(10) with a booster(20). The vacuum tank(200) is connected to a separate vacuum pipe branched from the vacuum pipe(40) between the check valve(100) and the booster(20) and has a partition(210) installed on the middle thereof, a rod penetrating, pistons(230) airtightly installed on both end of the rod with coil springs(240) placed on both sides of the piston(230) of one side and pushing the piston(230) unidirectionally to divide the tank(200) into four chambers. A first chamber and a second chamber always maintain atmospheric pressure. A second chamber has vacuum and atmospheric pressure inside alternatingly by the movement of the piston(230). A fourth chamber always maintains vacuum when an engine operates. The three way solenoid valve(300) is installed on the middle of a vacuum pipe connecting the second chamber of the vacuum tank(200) with the vacuum pipe(40). The relay(400) is electrically connected with the three way solenoid valve(300) and a charge warning lamp(60) and is operated when the charge warning lamp(60) is turned on.

Description

디젤엔진의 브레이크 장치Brake system of diesel engine

본 발명은 디젤엔진의 브레이크 장치에 관한 것으로, 더 상세히는 승합차나 소형 화물차에 적합한 소형으로 된 디젤 엔진의 브레이크 장치에 관한 것이다.The present invention relates to a brake device of a diesel engine, and more particularly to a brake device of a compact diesel engine suitable for a van or light truck.

일반적으로 소형 디젤엔진의 브레이크 장치는 부우스터가 채용하여 압력 및 제동성을 향상시키고 있다.In general, a booster is adopted as a brake device of a small diesel engine to improve pressure and braking performance.

이러한 부우스터는 가솔린 기관의 흡기다기관에 작용하는 부압을 이용하는 것과는 달리 디젤엔진에서는 흡기다기관에 부압이 발생하지 않으므로 알터네이터와 연동되어 작동되는 진공펌프에 의하여 부압을 발생시켰다.Unlike the booster which uses the negative pressure acting on the intake manifold of the gasoline engine, the booster does not generate the negative pressure in the intake manifold, so the negative pressure is generated by the vacuum pump operated in conjunction with the alternator.

따라서, 주행중 엔진은 구동하나 알터네이터 구동용 벨트가 끊어졌을 때, 또는 진공펌프 자체가 진공을 발생하지 못할 때에는 브레이크가 제대로 작동하지 않게된다. 더구나, 승합차에 승차인원이 많을 때와 소형화물차에 화물이 만재시 운전자의 답력만으로 주행중인 차량을 안전지대에 정차시키는 어려운 상태가 된다.Therefore, when the engine is driven while driving, but the alternator drive belt is broken, or the vacuum pump itself does not generate a vacuum, the brake does not work properly. In addition, when there are a large number of passengers in a van, and when a cargo is loaded in a small van, it is difficult to stop the vehicle being driven in the safety zone by the driver's effort.

참고로, 부우스터가 장착된 브레이크 장치는 주행중 엔진이 구동되지 않더라도 2회 내지 3회정도 브레이크를 작동시킬 수 있으나, 그동안 부우스터의 진공이 완전히 해제되므로 페달이 딱딱해지며 거의 제동이 되지 않게된다.For reference, the booster-equipped brake system can operate the brake about 2 to 3 times even if the engine is not driven while driving, but the booster's vacuum is completely released so that the pedal becomes hard and almost no braking. .

본 발명의 목적은 주행중 진공펌프에서 부압이 발생되지 않을 경우에 진공이 해제되는 시간을 지연시킴으로써 차량을 안전하게 정차시킬 수 있는 디젤 엔진의 브레이크 장치를 제공하는데 있다.An object of the present invention is to provide a brake device for a diesel engine that can safely stop the vehicle by delaying the time the vacuum is released when no negative pressure is generated in the vacuum pump while driving.

도1은 본 발명에 따른 디젤 엔진의 브레이크 장치의 구성도1 is a configuration diagram of a brake device of a diesel engine according to the present invention;

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

10 : 진공펌프20 : 부우스터10: vacuum pump 20: booster

30 :알터네이터40 : 진공파이프30: alternator 40: vacuum pipe

50 : 배터리 전원60 : 충전 경고등50: battery power 60: charge warning light

100 : 첵밸브200 : 진공탱크100: check valve 200: vacuum tank

210 : 격벽220 : 로드210: bulkhead 220: rod

230 : 피스톤240 : 코일스프링230: Piston 240: Coil Spring

300 : 3방향 솔레노이드 밸브400 : 릴레이300: 3-way solenoid valve 400: relay

이러한 목적을 달성하기 위하여, 본 발명은 디젤 엔진의 브레이크 장치에 있어서, 진공펌프와 부우스터를 연결하는 진공파이프의 중간에 연결되는 첵밸브와; 첵밸브와 부우스터를 사이의 진공파이프로부터 분기되는 별도의 진공파이프와 연결되며, 중앙에는 격벽이 설치됨과 동시에 로드가 관통되며 로드의 양단에는 피스톤이 기밀구조로 각각 설치하여 4개의 챔버로 나뉘어 지도록 하되,일측 피스톤의 양쪽편에는 코일스프링을 사용하여 피스톤을 일측으로 항시 미는힘이 작용하도록 하고 제1챔버와 제3챔버는 항상 대기압 상태로 유지되도록 하고 제2챔버는 피스톤의 이동에 따라 진공과 대기압이 교체되도록 하며 제4챔버는 엔진의 구동시 항상 진공이 유지되도록 하는 진공탱크와; 상기 진공탱크의 제2챔버와 상기 진공파이프를 연결하는 진공파이프의 중간에 설치하되는 3방향 솔레노이드 밸브와; 상기 3방향 솔레노이드 밸브와 충전경고등에 전기적으로 연결되어 사익 충전경고등의 점등시 구동되는 릴레이로 구성된 것에 그 특징이 있다.In order to achieve the above object, the present invention provides a brake device of a diesel engine, comprising: a check valve connected to a middle of a vacuum pipe connecting a vacuum pump and a booster; 첵 The valve and booster are connected to a separate vacuum pipe branched from the vacuum pipe between them, and the bulkhead is installed at the center and the rod penetrates. However, by using coil springs on both sides of one piston to always push the piston to one side, the first chamber and the third chamber are always kept at atmospheric pressure, and the second chamber has a vacuum and The fourth chamber includes a vacuum tank so that the atmospheric pressure is replaced and the vacuum is always maintained when the engine is driven; A three-way solenoid valve installed in the middle of the vacuum pipe connecting the second chamber of the vacuum tank and the vacuum pipe; The three-way solenoid valve and the charge warning light electrically connected to the characteristics of the relay that is configured to be driven when the light is charged.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 디젤 엔진의 브레이크 장치의 구성도이다.1 is a configuration diagram of a brake device of a diesel engine according to the present invention.

도1에 도시한 바와같이, 진공펌프(10)와 부우스터(20)에 연결된 진공파이프(40) 중간에 별도의 첵밸브(100)를 장착하고, 이 첵밸브(100)의 뒤쪽에 진공압력을 분기할 수 있는 T엘보우를 장착하며, 이 T엘보우의 일측은 새로운 진공탱크(200)에 연결한다.As shown in FIG. 1, a separate check valve 100 is mounted in the middle of the vacuum pipe 40 connected to the vacuum pump 10 and the booster 20, and the vacuum pressure is provided behind the check valve 100. Equipped with a T-elbow to branch, one side of the T-elbow is connected to a new vacuum tank (200).

상기한 진공탱크(200)는 4개의 챔버로 나뉘어지고 A와 C의 챔버는 항상 대기압 상태로 유지되며 B챔버는 상황에 따라 진공과 대기압이 교체된다. 또한, D챔버는 엔진의 구동시 항상 진공이 유지된다. 그리고, 진공탱크(200)의 중앙에는 격벽(210)이 설치되며, 이 격벽(210)은 중앙에는 진공이 누설되지 않는 구조로 로드(220)가 관통한다.The vacuum tank 200 is divided into four chambers, chambers A and C are always maintained at atmospheric pressure, and chamber B is replaced with vacuum and atmospheric pressure according to circumstances. In addition, the chamber D is always kept in vacuum when the engine is driven. In addition, the partition wall 210 is installed at the center of the vacuum tank 200, and the partition wall 210 penetrates through a structure in which vacuum does not leak in the center.

상기한 로드(220)의 양단에는 진공탱크(200)내를 왕복하는 피스톤(230)이 기밀구조로 각각 설치된다.At both ends of the rod 220, pistons 230 reciprocating in the vacuum tank 200 are respectively installed in an airtight structure.

일측 피스톤(230)의 양쪽편에는 코일스프링(240)을 사용하여 일측으로 항시 미는힘이 작용하도록 한다.On both sides of the one side piston 230, the coil spring 240 is used to always push the force to one side.

코일스프링(240)은 3개를 사용하여 일측 피스톤(230)을 밀거나 압축되어 B챔버의 체적을 확대시키는 작용을 한다. 이때 D챔버도 체적이 확대되므로 진공을 형성할 수 있다.Coil spring 240 is used to push or compress one side piston 230 by using three to expand the volume of the B chamber. At this time, the D chamber can also form a vacuum since the volume is enlarged.

한편, A,C챔버의 좌측 끝 부분에 피스톤(230)의 좌우 이동에 따라 공기가 흡입 도는 배출될 수 있도록 포트(P)가 형성된다. 또한 B챔버의 우측 끝단에는 진공과 대기압이 교차될 수 있는 포트(P)가 설치되 3방향 솔레노이드 밸브(300)의 일측과 연결되며, 이 솔레노이드의 작동을 위하여 릴레이(400)가 전기적으로 연결된다.On the other hand, the port (P) is formed on the left end of the A, C chamber so that the air is sucked or discharged in accordance with the left and right movement of the piston (230). In addition, the right end of the chamber B is provided with a port (P) through which the vacuum and atmospheric pressure can be crossed, and is connected to one side of the three-way solenoid valve 300, and the relay 400 is electrically connected to operate the solenoid. .

D챔버의 우측 끝단에는 항상 진공이 작용하는 포트(P)가 설치되 진공파이프(40)와 연결된다.The right end of the D chamber is always connected to the vacuum pipe 40 is provided with a port (P) that the vacuum acts.

미설명부호 70은 시동스위치이고, 80은 에어필터이다.Reference numeral 70 is a start switch, 80 is an air filter.

이러한 구성으로 된 본 발명의 작동시, 도1에 도시한 바와같이, 배터리 전원(50)이 인가되면 B챔버는 대기압 상태가 되고 배터리 전원(50)이 오프되면 3방향 솔레노이드밸브(300)의 대기 흡입구가 막히면서 진공이 작용 피스톤(230)이 격벽(210)쪽으로 이동된다. 따라서 주행중 엔진이 전지되거나 알터네이터(30) 구동용 벨트가 끊기면 충전 경고등(60)이 켜지면서 릴레이(400)가 작동되고, 릴레이(400)는 배터리 전원(50)을 3방향 솔레노이드 밸브(300)에 인가시켜 진공을 차단시킴과 동시에 대기 흡입구와 B챔버를 연통시켜 진공을 해제시킨다. 따라서 피스톤(230)은 코일스프링(240)의 장력에 의하여 A챔버 쪽으로 이동된다. 이와 동시에 D챔버의 진공체적을 확대시켜 부우스터(20)에 작용하는 진공해제 시간을 지연시키게 된다.In the operation of the present invention having such a configuration, as shown in FIG. 1, when the battery power source 50 is applied, the B chamber is in an atmospheric pressure state, and when the battery power source 50 is turned off, the three-way solenoid valve 300 is standby. As the inlet is blocked, the vacuum acting piston 230 is moved toward the partition wall 210. Therefore, when the engine is running or the alternator 30 driving belt is disconnected while driving, the relay 400 is operated while the charging warning light 60 is turned on, and the relay 400 supplies the battery power 50 to the three-way solenoid valve 300. It is applied to block the vacuum and at the same time to release the vacuum by communicating with the air inlet and the B chamber. Therefore, the piston 230 is moved toward the chamber A by the tension of the coil spring 240. At the same time, the vacuum volume of the D chamber is enlarged to delay the vacuum release time acting on the booster 20.

그러므로, 충전 경고등(60)이 들어왔을 때 차량을 안전지대에 안전하게 정차시키 ㄹ수 있는 시간을 확보하여 브레이크 장치의 기능상실로 인한 자동차 사고를 미연에 방지할 수 있다.Therefore, it is possible to prevent the car accident due to the malfunction of the brake device by securing a time to safely stop the vehicle in the safety zone when the charging warning light (60) enters.

상술한 바와같이, 본 발명에 따른 디젤엔진의 브레이크 장치는 진공펌프(10)에서 부압이 발생되지 않을 경우에 부우스터(20)의 진공이 해제되는 시간을 지연시킬 수 있도록 한 것으로, 제동능력의 상실로 인한 자동차 사고를 사고를 미연에 방지하여 인명피해를 방지하는 효과가 있다.As described above, the brake device of the diesel engine according to the present invention is to delay the time that the vacuum of the booster 20 is released when no negative pressure is generated in the vacuum pump 10, Car accidents caused by loss can be prevented beforehand to prevent human injury.

Claims (1)

이러한 목적을 달성하기 위하여, 본 발명은 디젤 엔진의 브레이크 장치에 있어서,진공펌프와 부우스터를 연결하는 진공파이프의 중간에 연결되는 첵밸브와; 첵밸브와 부우스터를 사이의 진공파이프로부터 분기되는 별도의 진공파이프와 연결되며, 중앙에는 격벽이 설치됨과 동시에 로드가 관통되며 로드의 양단에는 피스톤이 기밀구조로 각각 설치하여 4개의 챔버로 나뉘어지도록 하되,일측 피스톤의 양쪽편에는 코일스프링을 사용하여 피스톤을 일측으로 항시 미는 힘이 작용하도록 하고 제1챔버와 제3챔버는 항상 대기압 상태로 유지되도록 하고 제2챔버는 피스톤의 이동에 따라 진공과 대기압이 교체되도록 하며 제4챔버는 엔진의 구동시 항상 진공이 유지되도록 하는 진공탱크와; 상기 진공탱크의 제2챔버와 상기 진공파이프를 연결하는 진공파이프의 중간에 설치하되는 3방향 솔레노이드 밸브와; 상기 3방향 솔레노이드 밸브와 충전경고등에 전기적으로 연결되어 상기 충전경고등의 점등시 구동되는 릴레이로 구성된 것을 특징으로 하는 디젤엔진의 브레이크 장치In order to achieve this object, the present invention provides a brake device for a diesel engine, comprising: a check valve connected to a middle of a vacuum pipe connecting a vacuum pump and a booster; The valve and the booster are connected to a separate vacuum pipe branched from the vacuum pipe between them, and the bulkhead is installed at the center and the rod penetrates. However, by using a coil spring on both sides of one piston to always push the piston to one side, the first chamber and the third chamber is always kept at atmospheric pressure and the second chamber is vacuum and in accordance with the movement of the piston The fourth chamber includes a vacuum tank so that the atmospheric pressure is replaced and the vacuum is always maintained when the engine is driven; A three-way solenoid valve installed in the middle of the vacuum pipe connecting the second chamber of the vacuum tank and the vacuum pipe; The brake device of the diesel engine, characterized in that consisting of a relay which is electrically connected to the three-way solenoid valve and the charging warning light is driven when the charging warning light is turned on.
KR1019960070707A 1996-12-23 1996-12-23 A diesel engine brake KR100257014B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960070707A KR100257014B1 (en) 1996-12-23 1996-12-23 A diesel engine brake

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Application Number Priority Date Filing Date Title
KR1019960070707A KR100257014B1 (en) 1996-12-23 1996-12-23 A diesel engine brake

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KR19980051791A KR19980051791A (en) 1998-09-25
KR100257014B1 true KR100257014B1 (en) 2000-06-01

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