KR20040034844A - Subsidiary Brake System used of Exhaust Gas - Google Patents

Subsidiary Brake System used of Exhaust Gas Download PDF

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Publication number
KR20040034844A
KR20040034844A KR1020020063472A KR20020063472A KR20040034844A KR 20040034844 A KR20040034844 A KR 20040034844A KR 1020020063472 A KR1020020063472 A KR 1020020063472A KR 20020063472 A KR20020063472 A KR 20020063472A KR 20040034844 A KR20040034844 A KR 20040034844A
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South Korea
Prior art keywords
valve
pressure
pressure chamber
exhaust
exhaust gas
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KR1020020063472A
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Korean (ko)
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이상철
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현대자동차주식회사
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Priority to KR1020020063472A priority Critical patent/KR20040034844A/en
Publication of KR20040034844A publication Critical patent/KR20040034844A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE: A subsidiary brake system using exhaust gas is provided to improve response speed, to reduce caused noise, and to reduce manufacturing cost by improving a valve lash adjustor installed to adjust a gap of an exhaust valve. CONSTITUTION: A brake system includes a valve lash adjustor(8) supporting an end of a cam follower with a piston(9) lifted up and down by pressure of a pressure chamber(8a) allowing fluid in a hollow cylinder to flow in and out, and adjusting lifting displacement of the cam follower contacting with a cam and lifted up and down to open and close a valve so as to change opening rate of the valve; an exhaust gas brake switch(14) determining whether an exhaust gas brake is to be actuated; a solenoid valve(13) changing pressure in the pressure chamber of the valve lash adjustor; and a control part(15) actuating the solenoid valve to increase pressure in the pressure chamber by signal inputted by the exhaust gas brake switch. The solenoid valve opens and closes an injection tube(11) and recovery tube(12) connected with the pressure chamber to change pressure in the pressure chamber.

Description

배기 브레이크 시스템{Subsidiary Brake System used of Exhaust Gas}Subsidiary Brake System used of Exhaust Gas}

본 발명은 상용차 등에 주 브레이크 장치의 과도한 사용을 막기 위하여 설치되는 보조 브레이크 장치로서, 배기가스의 배출을 억제하여 엔진 내 연소실에 압력을 높임으로써 엔진의 피스톤 운동을 방해하여 엔진의 회전수를 강제로 낮추는 방식으로 제동력을 발생하는 배기 브레이크 시스템에 관한 것으로, 특히, 기존의 배기밸브 개도량 조정을 위해 설치된 밸브 래시 어저스트(Valve Lash Adjuster)를 이용한 배기 브레이크 시스템에 관한 것이다.The present invention is an auxiliary brake device installed to prevent the excessive use of the main brake device in commercial vehicles, etc., by suppressing the discharge of the exhaust gas to increase the pressure in the combustion chamber in the engine to interfere with the piston movement of the engine to force the engine speed The present invention relates to an exhaust brake system that generates a braking force in a lowering manner, and more particularly, to an exhaust brake system using a valve lash adjuster installed for adjusting an amount of opening of an existing exhaust valve.

트럭과 같은 상용차에는, 비탈길을 내려갈 때나 과도한 화물을 적재한 상태에서의 주행 중에 주 브레이크 장치의 빈번한 사용으로 인한 라이닝의 과도한 마모나 페이드(Fade) 현상 등으로 인한 제동성능 저하를 방지하기 위한 보조 브레이크 장치로서, 배기가스의 배출을 억제하여 엔진 내 연소실 압력이 높아지게 하고 이로써 엔진의 피스톤 운동을 방해하여 엔진의 회전수를 강제로 낮추는 방식으로 제동력을 발생하는 배기 브레이크 시스템이 장착되고 있다.In commercial vehicles such as trucks, auxiliary brakes are used to prevent braking performance deterioration due to excessive wear of the lining or fade due to frequent use of the main brake system during downhill slopes or during heavy loads. As an apparatus, an exhaust brake system is provided which generates a braking force in such a way as to suppress the discharge of exhaust gas to increase the combustion chamber pressure in the engine, thereby disturbing the piston movement of the engine and forcibly lowering the engine speed.

이와 같은 배기 브레이크 시스템으로 사용되고 있는 종래 배기 브레이크 시스템은 배기 브레이크 스위치를 누르면 솔레노이드 밸브가 작동하여 흡기관 또는 배기관를 개폐하는 버터 플라이 밸브 개도량을 축소하거나 폐쇄하여 흡기량과 배기량을 줄임으로써 엔진 회전수를 낮추어 엔진의 회전수 저감에 따른 엔진 부하에 의해서 제동력을 발생하도록 구성되어 있었다.The conventional exhaust brake system used as such an exhaust brake system reduces the engine speed by reducing the intake amount and the exhaust amount by reducing or closing the opening amount of the butterfly valve opening and closing the intake pipe or the exhaust pipe by pressing the exhaust brake switch to operate the solenoid valve. It was configured to generate braking force by the engine load according to the reduction of the engine speed.

그러나, 이상과 같은 종래 배기 브레이크 시스템은 흡기관이나 배기관의 버터 플라이 밸브가 공압에 의해 작동하도록 구성되어 있으므로 응답속도가 느리다는 단점이 있었다. 또한, 작동시 밸브 작동 및 공압에 따른 소음을 유발하여 승차감을 떨어뜨리는 단점도 가지고 있었다. 그 뿐만 아니라 흡기관이나 배기관에 버터 플라이 밸브와 그 버터 플라이 밸브의 작동을 위한 각종 작동부품들이 부가 설치되어야 하기 때문에 제조원가가 매우 높다는 문제점도 가지고 있었다.However, the conventional exhaust brake system as described above has a disadvantage in that the response speed is slow because the butterfly valve of the intake pipe or the exhaust pipe is configured to operate by pneumatic pressure. In addition, there was a disadvantage in reducing the riding comfort by inducing noise due to valve operation and pneumatic pressure during operation. In addition, there is a problem that the manufacturing cost is very high because the butterfly valve and various operating parts for the operation of the butterfly valve must be additionally installed in the intake pipe or the exhaust pipe.

이에, 본 발명은 상술한 바와 같은 종래 배기 브레이크 시스템의 문제점을 해소하기 위하여, 응답속도가 빠르고, 유발 소음이 적으며, 또한, 배기 밸브의 간극 조정을 위해 설치되는 밸브 래시 어저스터를 개량하여 이용함으로서 제조원가는 낮은 배기 브레이크 시스템을 제공하는데 그 목적이 있다.Accordingly, the present invention improves and utilizes a valve lash adjuster provided for fast response speed, low induced noise, and adjusting the clearance of the exhaust valve in order to solve the problems of the conventional exhaust brake system as described above. The purpose of this is to provide a low exhaust brake system.

도 1은 본 발명의 일 실시예에 따른 배기 브레이크 시스템이 설치된 엔진의 흡,배기밸브 시스템 사시도.1 is a perspective view of an intake and exhaust valve system of an engine having an exhaust brake system according to an embodiment of the present invention;

도 2는 본 발명의 일 실시예에 따른 배기 브레이크 시스템의 구성도.2 is a block diagram of an exhaust brake system according to an embodiment of the present invention.

도 3a와 3b는 본 발명의 일 실시예에 따른 배기 브레이크 시스템 작동도.3A and 3B illustrate an operation of an exhaust brake system in accordance with one embodiment of the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

2 : 캠3 : 캠 팔로우어2: Cam 3: Cam Follower

4 : 밸브 스프링5 : 흡기밸브4: valve spring 5: intake valve

6 : 배기밸브7, 8 : 밸브 래시 어저스터6: exhaust valve 7, 8: valve lash adjuster

8a : 압력실9 : 피스톤8a: pressure chamber 9: piston

10 : 유압원11 : 주입관10: hydraulic source 11: injection tube

12 : 회수관13 : 솔레노이드 밸브12 recovery tube 13 solenoid valve

14 : 배기 브레이크 스위치15 : 제어부14 exhaust exhaust switch 15 control unit

본 발명에 따른 배기 브레이크 시스템은, 중공 실린더 내의 유체 유출입이 가능한 압력실 압력에 의해서 승하강되는 피스톤으로 캠 팔로우의 일단을 지지함으로써, 캠에 접촉하여 승하강되면서 밸브를 개폐하는 캠 팔로우어의 승강변위를 조정하여 밸브의 개도율을 가변시키는 밸브 래시 어저스터; 배기 브레이크의 동작여부를 결정하기 위한 배기 브레이크 스위치; 상기 밸브 래시 어저스터의 압력실 내 압력을 가변시킬 수 있는 솔레노이드 밸브; 및 상기 배기 브레이크 스위치로부터입력되는 신호에 의해 상기 솔레노이드 밸브를 압력실 압력을 높이도록 작동시키는 제어부를 포함하여 이루어지는 것을 특징으로 한다.Exhaust brake system according to the present invention, by supporting the one end of the cam follow with the piston which is raised and lowered by the pressure chamber pressure capable of fluid flow in and out of the hollow cylinder, the lifting and lowering of the cam follower for opening and closing the valve while being raised and lowered in contact with the cam A valve lash adjuster for adjusting the displacement to vary the opening rate of the valve; An exhaust brake switch for determining whether the exhaust brake is operated; A solenoid valve capable of varying the pressure in the pressure chamber of the valve lash adjuster; And a control unit which operates the solenoid valve to increase the pressure chamber pressure by a signal input from the exhaust brake switch.

상기 솔레노이드 밸브는 상기 압력실에 대한 작동유체의 주입과 회수를 위하여 상기 압력실에 연결된 주입관과 회수관를 개폐하여 상기 압력실의 압력을 가변시키도록 구성된다.The solenoid valve is configured to change the pressure of the pressure chamber by opening and closing the injection pipe and the recovery pipe connected to the pressure chamber for injection and recovery of the working fluid to the pressure chamber.

이하, 바람직한 실시예를 통하여 본 발명에 따른 배기 브레이크 시스템의 구성과 작용을 보다 구체적으로 살펴본다.Hereinafter, the configuration and operation of the exhaust brake system according to the present invention through the preferred embodiment will be described in more detail.

도 1은 본 발명의 일 실시예에 따른 배기 브레이크 시스템이 설치된 엔진의 흡,배기밸브 시스템 사시도이고, 도 2는 본 발명의 일 실시예에 따른 배기 브레이크 시스템의 구성도이며, 도 3a와 3b는 그 작동도이다.1 is a perspective view of an intake and exhaust valve system of an engine equipped with an exhaust brake system according to an embodiment of the present invention, FIG. 2 is a configuration diagram of an exhaust brake system according to an embodiment of the present invention, and FIGS. 3A and 3B That works too.

도 1에 도시된 바와 같이, 엔진에 흡,배기 밸브의 개폐하기 위하여 설치되는 밸브 시스템은 캠축(1)과 일체로 회전되는 캠(2), 상기 캠(2)과 접촉하여 캠(2)의 프로파일에 의해 하강하는 캠 팔로우어(3), 하강된 상기 캠 팔로우어(3)를 원위치로 복귀시키는 밸브스프링(4), 상기 캠 팔로우어(3)에 의해 승,하강되면서 실린더 헤드의 흡,배기구를 개폐하는 흡,배기밸브(5,6), 그리고, 상기 각 밸브(5,6)들의 열팽창에 따른 간극을 조정하기 위하여 상기 캠 팔로우어(3)의 일측을 탄력적으로 지지하도록 설치되는 밸브 래시 어저스터(7,8) 등으로 구성되어 있다.As shown in FIG. 1, a valve system installed to open and close an intake / exhaust valve in an engine includes a cam 2 which is integrally rotated with a cam shaft 1, and the cam 2 is in contact with the cam 2. The cam follower 3 which is lowered by the profile, the valve spring 4 which returns the lower cam follower 3 to its original position, and the cam follower 3 is lifted and lowered by the suction of the cylinder head, Inlet / exhaust valves 5 and 6 for opening and closing the exhaust port, and valves installed to elastically support one side of the cam follower 3 in order to adjust the gap according to thermal expansion of the respective valves 5 and 6. And the lash adjusters 7 and 8.

그리고, 본 발명의 일 실시예에 따른 배기 브레이크 시스템은 상기배기밸브(6)의 개폐율을 감소시켜 배기가스의 배출을 억제함으로써 엔진의 피스톤 운동을 방해하여 엔진의 회전수를 강제로 낮추는 방식으로 제동력을 발생하도록 구성된 것으로서, 도 2에 나타난 바와 같이, 배기밸브(6)의 밸브 래시 어저스터(8)의 압력실(8a) 압력 변화에 따라 승하강되는 피스톤(9), 상기 압력실(8a)에 유압유니트(10)의 작동유체를 주입하거나 회수할 수 있도록 상기 압력실(8a)에 연결된 주입관(11)과 회수관(12), 상기 주입관(11)과 회수관(12)를 개폐하는 솔레노이브 밸브(13), 운전자가 배기 브레이크 시스템을 가동시킬 수 있게 하는 배기 브레이크 스위치(14), 그리고, 상기 배기 브레이크 스위치(14)의 신호에 의해 상기 솔레노이브 밸브(13)를 작동시키는 제어부(15) 등으로 구성되어 있다.In addition, the exhaust brake system according to an embodiment of the present invention reduces the opening and closing rate of the exhaust valve 6 to suppress exhaust of the exhaust gas, thereby preventing the piston movement of the engine and forcibly lowering the engine speed. As shown in FIG. 2, as shown in FIG. 2, the piston 9 and the pressure chamber 8a are lowered in accordance with the pressure change of the pressure chamber 8a of the valve lash adjuster 8 of the exhaust valve 6. The injection pipe 11 and the recovery pipe 12 connected to the pressure chamber 8a, the injection pipe 11 and the recovery pipe 12 to inject or recover the working fluid of the hydraulic unit 10 to The solenoid valve 13 which opens and closes, the exhaust brake switch 14 which enables a driver to operate the exhaust brake system, and the solenoid valve 13 by the signal of the exhaust brake switch 14 are opened. With control unit 15 to operate It is.

위 구성에 있어서, 상기 밸브 래시 어저스터(8)에 포함되어 압력실(8a)의 압력변화에 따라 높이가 가변되는 피스톤(9)의 경우에는 캠 팔로우어(3)의 일단을 지지하여 배기밸브(6)의 간극을 없애는 기능을 겸하게 되며, 이는 대략 배기밸브(6)의 리프트 거리에 남짓한 높이(L) 범위내에서 승하강할 수 있게 설치된다.In the above configuration, in the case of the piston 9 included in the valve lash adjuster 8 and the height is changed in accordance with the pressure change of the pressure chamber 8a, one end of the cam follower 3 is supported to support the exhaust valve. It serves as a function of eliminating the gap of (6), which is installed so as to move up and down within the height (L) range approximately equal to the lift distance of the exhaust valve (6).

이와 같은 구성들로 이루어짐에 따라 본 발명의 일 실시예에 따른 배기 브레이크 시스템은, 비탈길을 내려갈 때나 과도한 화물을 적재한 상태에서의 주행 중 주행속도를 줄이기 위하여 빈번하게 제동을 해야 할 때 주제동장치의 제동성능이 저하되지 않도록 배기 브레이크 스위치(14)를 켜면, 다음과 같은 작동을 통하여 제동력을 발생하게 된다.As the exhaust brake system according to the embodiment of the present invention has such a configuration, it is necessary to brake frequently to reduce the traveling speed while driving down a slope or in a state in which excessive cargo is loaded. When the exhaust brake switch 14 is turned on so as not to deteriorate the braking performance, the braking force is generated through the following operation.

본 발명의 일 실시예에 따른 배기 브레이크 시스템은 도 3a와 같이 정상상태에서 작동하여 흡기와 배기가 정상적으로 이루어지게 한다. 그리고 필요에 따라 운전자가 배기 브레이크 스위치(14)를 켜게 되면, 그 배기 브레이크 스위치(14)의 신호에 의해 제어부(15)가 솔레노이브 밸브(13)를 동작시켜 주입관(11)을 폐쇄시킴과 동시에 회수관(12)은 개방하고, 압력실(8a)의 작동유체는 개방된 회수관(12)을 통해 유압유니트(10)에 회수되어 압력실(8a)의 압력이 낮아지게 된다. 이어서 압력실(8a) 압력 낮아짐에 따라서 캠 팔로우어(3)의 일측을 지지하는 피스톤(9)이 하강하여 캠 팔로우어(3)가 피스톤(9)에 연동하여 하강하게 된다. 이에 도 3b에 도시된 바와 같이 캠(2)이 그 프로파일로써 가하는 힘이 캠 팔로우어(3)에 미치지 않게 되거나 또는 크게 줄어들어 배기밸브(6)가 밸브스프링(4)의 복원력에 의해 상승하게 되며, 그로 인해 실린더 헤드의 배기구가 폐쇄되거나 개도율이 크게 낮아지게 된다. 이로서 배기가스의 배출이 억제되면서 엔진 내 연소실 압력이 높아지게 되어 엔진의 피스톤 운동이 억지되고 그 결과 엔진이 그 회전수가 주행속도에 비해 크게 낮아지게 되어 엔진 브레이크로서 작용하여 제동력을 발생한다.Exhaust brake system according to an embodiment of the present invention operates in a normal state as shown in Figure 3a to make the intake and exhaust is normal. When the driver turns on the exhaust brake switch 14 as necessary, the control unit 15 operates the solenoid valve 13 to close the injection pipe 11 by the signal of the exhaust brake switch 14. At the same time, the recovery pipe 12 is opened, and the working fluid of the pressure chamber 8a is recovered to the hydraulic unit 10 through the open recovery pipe 12 to lower the pressure of the pressure chamber 8a. Subsequently, as the pressure in the pressure chamber 8a decreases, the piston 9 supporting one side of the cam follower 3 descends and the cam follower 3 descends in conjunction with the piston 9. As shown in FIG. 3B, the force applied by the cam 2 as its profile does not fall short of the cam follower 3 or is greatly reduced so that the exhaust valve 6 is raised by the restoring force of the valve spring 4. As a result, the exhaust port of the cylinder head is closed or the opening degree is significantly lowered. As a result, the exhaust gas is suppressed and the combustion chamber pressure in the engine is increased to suppress the piston movement of the engine. As a result, the engine speed is significantly lowered compared to the traveling speed, thereby acting as an engine brake to generate braking force.

본 발명에 따른 배기 브레이크 시스템은, 복잡한 구성 추가 없이 기존에 밸브 간극 조정을 위해 설치된 밸브 래시 어저스터를 개량하여 이용하므로 제조원가가 낮다는 장점이 있다. 또한, 밸브 래시 어저스터의 높이를 낮추어 배기밸브에 전달되는 캠의 구동력을 직접 차단하고 연소실 배기가스를 연소실 배기구에서 차단하므로 응답속도가 빠르고 소음이 작다는 장점도 가지고 있다.Exhaust brake system according to the present invention, there is an advantage that the manufacturing cost is low because it uses an improved valve lash adjuster conventionally installed for adjusting the valve gap without adding a complicated configuration. In addition, by lowering the height of the valve lash adjuster to directly block the driving force of the cam delivered to the exhaust valve and the combustion chamber exhaust gas from the combustion chamber exhaust port has the advantage of fast response speed and low noise.

Claims (2)

중공 실린더 내의 유체 유출입이 가능한 압력실 압력에 의해서 승하강되는 피스톤으로 캠 팔로우의 일단을 지지함으로써, 캠에 접촉하여 승하강되면서 밸브를 개폐하는 캠 팔로우어의 승강변위를 조정하여 밸브의 개도율을 가변시키는 밸브 래시 어저스터;By supporting one end of the cam follower with a piston that is raised and lowered by a pressure chamber pressure capable of fluid flow in and out of the hollow cylinder, the opening and closing rate of the valve is adjusted by adjusting the lift displacement of the cam follower which opens and closes the valve while raising and lowering the cam. A variable valve lash adjuster; 배기 브레이크의 동작여부를 결정하기 위한 배기 브레이크 스위치;An exhaust brake switch for determining whether the exhaust brake is operated; 상기 밸브 래시 어저스터의 압력실 내 압력을 가변시킬 수 있는 솔레노이드 밸브; 및A solenoid valve capable of varying the pressure in the pressure chamber of the valve lash adjuster; And 상기 배기 브레이크 스위치로부터 입력되는 신호에 의해 상기 솔레노이드 밸브를 압력실 압력을 높이도록 작동시키는 제어부를 포함하여 이루어지는 것을 특징으로 하는 배기 브레이크 시스템.And a control unit for operating the solenoid valve to increase the pressure chamber pressure in response to a signal input from the exhaust brake switch. 제 1 항에 있어서,The method of claim 1, 상기 솔레노이드 밸브는 상기 압력실에 대한 작동유체의 주입과 회수를 위하여 상기 압력실에 연결된 주입관과 회수관를 개폐하여 상기 압력실의 압력을 가변시키도록 구성된 것을 특징으로 하는 배기 브레이크 시스템.The solenoid valve is configured to vary the pressure in the pressure chamber by opening and closing the injection pipe and the recovery pipe connected to the pressure chamber for the injection and recovery of the working fluid to the pressure chamber.
KR1020020063472A 2002-10-17 2002-10-17 Subsidiary Brake System used of Exhaust Gas KR20040034844A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9255528B2 (en) 2011-10-28 2016-02-09 Hyundai Motor Company System and method for controlling an exhaust brake of a vehicle
CN111911292A (en) * 2020-08-18 2020-11-10 湖北力美制动元件有限公司 Constant-pressure electromagnetic exhaust brake valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132343A (en) * 1975-05-14 1976-11-17 Mitsubishi Motors Corp Exhaust brake device
JPS63297710A (en) * 1987-05-29 1988-12-05 Isuzu Motors Ltd Valve lash adjuster
JPH02125905A (en) * 1988-11-01 1990-05-14 Saitama Kiki Kk Engine brake device
JPH02119907U (en) * 1989-03-15 1990-09-27
KR19980048920U (en) * 1996-12-30 1998-10-07 박병재 Car exhaust brake
KR19980074550A (en) * 1997-03-26 1998-11-05 김영귀 Exhaust brake system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132343A (en) * 1975-05-14 1976-11-17 Mitsubishi Motors Corp Exhaust brake device
JPS63297710A (en) * 1987-05-29 1988-12-05 Isuzu Motors Ltd Valve lash adjuster
JPH02125905A (en) * 1988-11-01 1990-05-14 Saitama Kiki Kk Engine brake device
JPH02119907U (en) * 1989-03-15 1990-09-27
KR19980048920U (en) * 1996-12-30 1998-10-07 박병재 Car exhaust brake
KR19980074550A (en) * 1997-03-26 1998-11-05 김영귀 Exhaust brake system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9255528B2 (en) 2011-10-28 2016-02-09 Hyundai Motor Company System and method for controlling an exhaust brake of a vehicle
CN111911292A (en) * 2020-08-18 2020-11-10 湖北力美制动元件有限公司 Constant-pressure electromagnetic exhaust brake valve

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