KR20040035967A - Variable intake system - Google Patents

Variable intake system Download PDF

Info

Publication number
KR20040035967A
KR20040035967A KR1020020062336A KR20020062336A KR20040035967A KR 20040035967 A KR20040035967 A KR 20040035967A KR 1020020062336 A KR1020020062336 A KR 1020020062336A KR 20020062336 A KR20020062336 A KR 20020062336A KR 20040035967 A KR20040035967 A KR 20040035967A
Authority
KR
South Korea
Prior art keywords
engine
intake
air
air hose
bypass
Prior art date
Application number
KR1020020062336A
Other languages
Korean (ko)
Other versions
KR100559593B1 (en
Inventor
박기춘
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020020062336A priority Critical patent/KR100559593B1/en
Publication of KR20040035967A publication Critical patent/KR20040035967A/en
Application granted granted Critical
Publication of KR100559593B1 publication Critical patent/KR100559593B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

PURPOSE: A variable intake system for improving performance of a middle/low speed engine is provided to improve performance of the engine by improving resonant supercharging effect at middle/low speed operation. CONSTITUTION: Intake air introduced through an intake duct(2) passes an air filter(1), an air hose(10), a surge tank(4) and an intake manifold(8) to be supplied to an engine. The intake manifold has a first bypass channel(5) shortening an intake channel; and a first bypass valve(6) opening and closing the first bypass channel. An inlet of the air hose is led into the air filter. A second bypass channel(11) is formed on the middle of the air hose to allow intake air passing the air filter to directly flow in. A second bypass valve(12) is formed on the second bypass channel to open and close the second bypass channel. The first bypass valve and the second bypass valve are closed at middle/low operation of the engine to extend effective length of the intake manifold and the air hose so as to increase resonant supercharging effect and improve performance of the engine.

Description

중저속 엔진성능 향상을 위한 가변흡기시스템{Variable intake system}Variable intake system for improving low and medium speed engine performance

본 발명은 중저속 엔진성능 향상을 위한 가변흡기 시스템에 관한 것으로서, 특히 에어호스의 입구측이 에어필터의 내부로 일정길이 인입되도록 하고, 인입된 에어호스의 도중에 제 1 바이패스통로와 개폐용 바이패스밸브를 설치하여 엔진의 중저속 운전시 바이패스밸브를 닫아주어 에어호스로의 흡기 공급경로가 길어지도록하므로서, 중저속 운전시 공명과급 효과의 향상에 의해 엔진 성능이 개선되도록 한 중저속 엔진성능 향상을 위한 가변흡기 시스템에 관한 것이다.The present invention relates to a variable intake system for improving low and medium speed engine performance, and in particular, the inlet side of the air hose is introduced into the air filter for a predetermined length, and the first bypass passage and the opening and closing bypass Low and low speed engine that closes the bypass valve during the low and medium speed operation of the engine to lengthen the intake supply path to the air hose and improves the engine performance by improving the resonance supercharge effect during the low and medium speed operation. The present invention relates to a variable intake system for improving performance.

일반적으로 가변흡기 시스템이라 함은 엔진 성능 개선을 위해 흡입관 길이를 가변시켜 엔진의 신기 유입량을 대변하는 체적 효율을 향상시켜 엔진 성능을 향상시키는 것을 말하며, 엔진이 중고속 환경에서 운전될때에는 흡입관의 전체 길이를 짧게 가변하고, 엔진이 중저속 환경에서 운전될때에는 흡입관의 전체 길이를 길게 가변시켜 엔진의 성능을 향상시킨다.In general, the variable intake system refers to improving the engine performance by varying the length of the suction pipe to improve engine performance, thereby improving the volumetric efficiency representing the fresh air inflow of the engine.When the engine is operated in a high speed environment, the entire suction pipe is used. The length is shortened, and when the engine is operated in a low to medium speed environment, the overall length of the suction pipe is changed to be long to improve the engine performance.

도 2 는 종래의 가변흡기 시스템을 도시한 것으로서,2 shows a conventional variable intake system,

에어필터(1)의 일측에 에어덕트(2)가 연결되고, 에어필터(1)와 서지탱크(4)의 사이에 에어호스(3)가 연결되며, 서지탱크(4)와 엔진의 흡기포트 사이를 흡기매니폴드(8)로서 연결하되, 서지탱크(4)와 흡기매니폴드(8) 사이에 흡기경로를 단축시키는 제 1 바이패스통로(5)를 형성하고, 이 제 1 바이패스통로(5)의 출구측에 제 1 바이패스밸브(6)를 형성하여 구성한 것이며, 도면부호 7 은 흡기밸브이다.An air duct 2 is connected to one side of the air filter 1, an air hose 3 is connected between the air filter 1 and the surge tank 4, and an intake port of the surge tank 4 and the engine is provided. A first bypass passage 5 which shortens the intake path between the surge tank 4 and the intake manifold 8, and connects the intake manifold 8 to the first intake passage. The 1st bypass valve 6 was formed in the outlet side of 5), and 7 is the intake valve.

엔진 체적 효율을 결정하는 흡기관의 길이는 서지탱크(4)에서 흡기밸브(7) 까지의 길이인 L1, 에어호스(3)의 길이인 L2, 에어덕트(2)의 길이인 L3 등이 있으며, 이중에서 흡기매니폴드(8)의 길이인 L1 의 길이변화가 엔진성능에 큰 영향을 미치고 있고, 에어호스(3)의 길이인 L2 역시 엔진성능에 영향을 미치는 중요한 요인으로 작용한다.The length of the intake pipe for determining the engine volume efficiency is L1, which is the length from the surge tank 4 to the intake valve 7, L2, which is the length of the air hose 3, L3, which is the length of the air duct 2, and the like. In particular, the length change of the length L1 of the intake manifold 8 has a great influence on the engine performance, and the length L2 of the air hose 3 also acts as an important factor affecting the engine performance.

또한, 엔진 체적 효율의 동적효율은 관성과급과 공명과급의 영향을 받게되는데, 관성과급은 엔진의 고속운전영역에서 엔진의 성능에 영향을 미치게되고, 공명과급은 엔진의 중저속운전영역에서 엔진의 성능에 영향을 주게되며, 주로 관성과급은 흡기매니폴드(8)의 길이(L1)에 영향을 받으며, 공명과급은 흡기매니폴드(8)와 에어호스(3)의 길이(L1+L2)에 영향을 받게된다.In addition, the dynamic efficiency of the engine volumetric efficiency is affected by the inertia and resonance supercharge. The inertia supervision affects the performance of the engine in the high speed operation range of the engine. It affects the performance of the engine, mainly inertia is affected by the length (L1) of the intake manifold (8), resonant supercharge is the length (L1 +) of the intake manifold (8) and air hose (3) L2) will be affected.

종래의 가변흡기 시스템은 엔진이 고속으로 운전될때 상기 제 1 바이패스밸브(6)를 개방시켜 흡기가 제 1 바이패스통로(5)를 통과하도록 하여 전체적인 흡기관의 길이를 단축시켜 관성과급 효과에 의해 엔진의 성능이 개선되도록 하고, 또 엔진이 중저속 환경에서 운전될때에는 상기 제 1 바이패스밸브(6)를 차단시켜 흡기가 제 1 바이패스통로(5)를 통하지 않고 흡기매니폴드(8)를 통해서만 엔진으로 공급되도록 하므로서 공명과급효과에 의해 엔진 성능이 개선되도록 한다.The conventional variable intake system opens the first bypass valve (6) when the engine is running at high speed to allow the intake air to pass through the first bypass passage (5) to shorten the length of the entire intake pipe to reduce the inertia effect. The engine performance is improved, and when the engine is operated in a low to medium speed environment, the first bypass valve 6 is shut off so that the intake air does not pass through the first bypass passage 5 but the intake manifold 8 The engine performance is improved by the resonance supercharge effect by supplying it to the engine only.

그러나, 종래에는 단순히 흡기매니폴드의 길이만을 가변시켜 흡기관의 길이를 조절하는 것이기 때문에 엔진의 중저속 운전상황에서 엔진 체적 효율을 보다 효율적으로 개선시키지 못하는 문제점이 발생하고 있었다.However, conventionally, since only the length of the intake manifold is changed to adjust the length of the intake pipe, there is a problem in that the engine volume efficiency cannot be improved more efficiently in the medium and low speed operation of the engine.

즉, 중저속 운전환경에서 엔진의 성능에 영향을 미치는 공명과급효과는 흡기매니폴드의 길이(L1) 뿐만 아니라 에어호스의 길이(L2)에도 큰 영향을 받게 되는데, 종래와같이 흡기매니폴드의 길이만을 가변시키게 되면 그만큼 공명과급효과를 개선시키지 못하게되므로 중저속시의 엔진성능 개선효과가 떨어지게되는 것이다.In other words, the resonant supercharge effect that affects the performance of the engine in the medium and low speed operation environment is greatly influenced not only by the length L1 of the intake manifold but also by the length L2 of the air hose. If only the length is changed, the resonant supercharge effect will not be improved. Therefore, the improvement of engine performance at low and medium speeds will be reduced.

따라서, 상기 문제점을 해결하기 위한 본 발명은 에어호스의 입구측이 에어필터의 내부로 일정길이 인입되도록 하고, 인입된 에어호스의 도중에 제 1 바이패스통로와 개폐용 바이패스밸브를 설치하여 엔진의 중저속 운전시 바이패스밸브를 닫아주어 에어호스로의 흡기 공급경로가 길어지도록 하므로서, 중저속 운전시 공명과급 효과의 향상에 의해 엔진 성능이 개선되도록 한 중저속 엔진성능 향상을 위한 가변흡기 시스템을 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to allow the inlet side of the air hose to be introduced into the inside of the air filter for a certain length, the first bypass passage and opening and closing bypass valve in the middle of the air hose is introduced to the engine Variable intake system for improving low and medium speed engine performance by closing the bypass valve during medium and low speed operation to increase the intake supply path to the air hose, and improving the engine performance by improving the resonance supercharge effect during medium and low speed operation. The purpose is to provide.

상기 목적달성을 위한 본 발명은The present invention for achieving the above object

흡기덕트로 유입된 흡기가 에어필터, 에어호스, 서지탱크, 흡기매니폴드를 통해 엔진으로 공급되고, 상기 흡기매니폴드에는 흡기경로를 단축시키기 위한 제 1 바이패스통로 및 상기 제 1 바이패스통로를 개폐시키기 위한 제 1 바이패스 밸브가 형성되어 있는 가변흡기 시스템에 있어서,Intake air introduced into the intake duct is supplied to the engine through an air filter, an air hose, a surge tank, and an intake manifold, and the intake manifold includes a first bypass passage and the first bypass passage to shorten the intake passage. A variable intake system having a first bypass valve for opening and closing,

에어호스의 입구측이 에어필터의 내측으로 일정길이 인입되도록 하고, 인입된 에어호스의 도중에 에어필터를 통과한 흡기가 바로 진입할 수 있도록 하는 제 2 바이패스통로를 형성하되,A second bypass passage is formed so that the inlet side of the air hose enters a predetermined length into the inside of the air filter and allows the intake air passing through the air filter to enter the air filter in the middle of the drawn air hose.

상기 제 2 바이패스통로에 개폐용 제 2 바이패스밸브를 형성한 것을 특징으로 한다.A second bypass valve for opening and closing is formed in the second bypass passage.

엔진의 중저속 운전환경에서 제 1 및 제 2 바이패스밸브를 모두 닫아주어 흡기매니폴드와 에어호스의 유효길이가 모두 길어지면서 공명과급효과가 증대되어 엔진성능이 개선되는 것을 특징으로 한다.By closing both the first and second bypass valves in the medium and low speed operating environment of the engine, the effective length of both the intake manifold and the air hose is increased, so that the resonance supercharge effect is increased and the engine performance is improved.

도 1 은 본 발명의 중저속 엔진성능 향상을 위한 가변흡기시스템을 보인 도면.1 is a view showing a variable intake system for improving the performance of a low to medium speed engine of the present invention.

도 2 는 종래의 가변흡기시스템을 보인 도면.2 is a view showing a conventional variable intake system.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 에어필터 2 : 흡기덕트1: Air filter 2: Intake duct

4 : 서지탱크 5 : 제 1 바이패스통로4: surge tank 5: first bypass passage

6 : 제 1 바이패스밸브 8 : 흡기매니폴드6: first bypass valve 8: intake manifold

10 : 에어호스 11 : 제 2 바이패스통로10: air hose 11: second bypass passage

12 : 제 2 바이패스밸브12: second bypass valve

이하, 첨부된 도면 도 1 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

본 발명의 설명에 있어서 종래와 동일한 구성요소에 대해서는 동일부호 표기하여 중복설명을 피하기로 한다.In the description of the present invention, the same components as in the prior art will be denoted by the same reference numerals to avoid redundant description.

본 발명에서는 흡기매니폴드(8)의 유효길이(L1) 가변과 함께 에어호스(10)의 유효길이(L2)또한 가변시킬 수 있도록 하기 위해 도 1 에 도시된 바와같이 에어호스(10)의 입구측을 에어필터(1) 내부로 인입하고, 그 인입된 에어호스(10)의 도중에 에어필터(1)를 통과한 흡기가 곧바로 에어호스(10)로 유입되도록 하는 제 2 바이패스통로(11)를 형성한다.In the present invention, in order to allow the effective length L2 of the air hose 10 to be variable as well as the effective length L1 of the intake manifold 8, as shown in FIG. 1, the inlet of the air hose 10. The second bypass passage 11 for introducing the side into the air filter 1 and allowing the intake air passing through the air filter 1 to flow directly into the air hose 10 in the middle of the drawn air hose 10. To form.

그리고, 상기 바이패스통로(11)에는 개폐용 제 2 바이패스밸브(12)를 형성하여 이 제 2 바이패스밸브(12)를 개폐하는 것에 의해 에어호스(10)의 유효길이(L2)가 짧아지거나 길어지도록 하였다.In addition, an effective length L2 of the air hose 10 is shortened by forming an opening / closing second bypass valve 12 in the bypass passage 11 to open and close the second bypass valve 12. It was built or lengthened.

엔진이 고속운전될 경우에는 제 1 바이패스밸브(6)와 상기 제 2 바이패스밸브(12)를 동시에 개방시켜 흡기매니폴드(8)의 유효길이(L1)와 에어호스(10)의 유효길이(L2)가 짧아지도록 하여 관성과급효과의 개선에 의해 고속운전하는 엔진의 성능이 개선되도록 하며,When the engine is running at high speed, the first bypass valve 6 and the second bypass valve 12 are opened at the same time so that the effective length L1 of the intake manifold 8 and the effective length of the air hose 10 are maintained. (L2) is shortened to improve the performance of the engine running at high speed by improving the inertia and rapid effects,

엔진이 중저속 운전될 경우에는 제 1 바이패스밸브(6)와 상기 제 2 바이패스밸브(12)를 닫아주어 흡기매니폴드(8)의 유효길이(L1)와 에어호스(10)의 유효길이(L2)가 길어지도록 하므로서, 공명과급효과의 개선에 의해 중저속 운전하는 엔진의 성능이 개선되도록 한다.When the engine is operated at low and low speeds, the first bypass valve 6 and the second bypass valve 12 are closed so that the effective length L1 of the intake manifold 8 and the effective length of the air hose 10 are maintained. By making L2 longer, the performance of the engine operating at low and medium speeds is improved by improving the resonance supercharging effect.

즉, 종래에는 중저속 운전시 제 1 바이패스밸브(6) 만을 닫아주어 흡기매니폴드(8)의 길이(L1)을 조정하므로서 전체적인 흡기관의 길이 조절에 한계를 나타내면서 공명과급효과를 최대한 구현하지 못하였으나.That is, conventionally, only the first bypass valve 6 is closed during medium and low speed operation, thereby adjusting the length L1 of the intake manifold 8, thereby limiting the length adjustment of the entire intake pipe and realizing the resonance supercharge effect to the maximum. I couldn't.

본 발명에서는 중저속 운전시 제 1 바이패스밸브(6)와 함게 제 2 바이패스밸브(12)를 동시에 닫아주므로서, 흡기매니폴드(8)의 길이(L1) 뿐만 아니라 에어호스(10)의 길이(L2) 까지 가변시키게 됨에 따라 전체적인 흡기관의 길이 조절을 폭넓게 가변시킬 수 있게되어 공명과급효과를 더욱 향상시킬 수 있는 것이며, 이에의해 중저속 환경에서 구동하는 엔진의 성능을 개선시킬 수 있는 것이다.In the present invention, by closing the second bypass valve 12 together with the first bypass valve 6 at the time of medium and low speed operation, not only the length L1 of the intake manifold 8 but also the air hose 10 By varying the length (L2) it is possible to vary the length adjustment of the overall intake pipe to further improve the resonance supercharge effect, thereby improving the performance of the engine running in low to medium speed environment will be.

상기 설명된 제 1 및 제 2 바이패스밸브의 제어는 미도시된 별도의 제어장치, 예를들면 ECU 와같은 제어장치에 의해 구현된다.The control of the first and second bypass valves described above is implemented by a separate control device not shown, for example a control device such as an ECU.

이상에서 설명한 바와같이 본 발명은 에어호스의 입구측이 에어필터의 내부로 일정길이 인입되도록 하고, 인입된 에어호스의 도중에 제 1 바이패스통로와 개폐용 바이패스밸브를 설치하여 엔진의 중저속 운전시 바이패스밸브를 닫아주어 에어호스로의 흡기 공급경로가 길어지도록 하므로서, 중저속 운전시 공명과급 효과의 향상에 의해 엔진 성능이 개선되도록 한 중저속 엔진성능 향상을 위한 가변흡기 시스템을 제공하는 효과를 기대할 수 있다.As described above, the present invention allows the inlet side of the air hose to be introduced into the air filter by a predetermined length, and the first bypass passage and the opening / closing bypass valve are installed in the middle of the drawn air hose. When the bypass valve is closed during operation, the intake supply path to the air hose is increased, and thus, the variable intake system for improving the performance of the low and medium speed engines is improved to improve the engine performance by improving the resonance supercharge effect during the medium and low speed operation. You can expect the effect.

Claims (2)

흡기덕트(2)로 유입된 흡기가 에어필터(1), 에어호스(10), 서지탱크(4), 흡기매니폴드(8)를 통해 엔진으로 공급되고, 상기 흡기매니폴드(8)에는 흡기경로를 단축시키기 위한 제 1 바이패스통로(5) 및 상기 제 1 바이패스통로(5)를 개폐시키기 위한 제 1 바이패스 밸브가 형성되어 있는 가변흡기 시스템에 있어서,Intake air flowing into the intake duct (2) is supplied to the engine through the air filter (1), air hose (10), surge tank (4), intake manifold (8), and intake air to the intake manifold (8) In a variable intake system in which a first bypass passage 5 for shortening a path and a first bypass valve for opening and closing the first bypass passage 5 are formed, 에어호스(10)의 입구측(13)이 에어필터(1)의 내측으로 일정길이 인입되도록 하고, 인입된 에어호스(10)의 도중에 에어필터(1)를 통과한 흡기가 바로 진입할 수 있도록 하는 제 2 바이패스통로(11)를 형성하되,The inlet side 13 of the air hose 10 is introduced into the inside of the air filter 1 by a predetermined length, and the intake air passing through the air filter 1 in the middle of the drawn air hose 10 can enter immediately. Form a second bypass passage (11), 상기 제 2 바이패스통로(11)에 개폐용 제 2 바이패스밸브(12)를 형성한 것을 특징으로 하는 중저속 엔진 성능 향상을 위한 가변흡기 시스템.Variable intake system for improving the performance of the low and medium speed engine, characterized in that the second bypass valve (12) for opening and closing is formed in the second bypass passage (11). 제 1 항에 있어서,The method of claim 1, 엔진의 중저속 운전환경에서 제 1 및 제 2 바이패스밸브를 모두 닫아주어 흡기매니폴드(8)와 에어호스(3)의 유효길이(L1+L2)가 모두 길어지면서 공명과급효과가 증대되어 엔진성능이 개선되는 것을 특징으로 하는 중저속 엔진 성능 향상을 위한 가변흡기 시스템.Closes both the first and second bypass valves in the medium and low speed operating environment of the engine, and the effective length (L1 + L2) of the intake manifold 8 and the air hose 3 becomes longer, thereby increasing the resonance supercharge effect. Variable intake system for improving the performance of the low and medium speed engine, characterized in that the engine performance is improved.
KR1020020062336A 2002-10-14 2002-10-14 Variable intake system KR100559593B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020062336A KR100559593B1 (en) 2002-10-14 2002-10-14 Variable intake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020062336A KR100559593B1 (en) 2002-10-14 2002-10-14 Variable intake system

Publications (2)

Publication Number Publication Date
KR20040035967A true KR20040035967A (en) 2004-04-30
KR100559593B1 KR100559593B1 (en) 2006-03-10

Family

ID=37334585

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020062336A KR100559593B1 (en) 2002-10-14 2002-10-14 Variable intake system

Country Status (1)

Country Link
KR (1) KR100559593B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975127A (en) * 2010-11-18 2011-02-16 重庆隆鑫机车有限公司 Air intake system capable of automatically adjusting air flow and motorcycle thereof
CN102011663A (en) * 2010-11-18 2011-04-13 重庆隆鑫机车有限公司 Engine air intake system and motorcycle thereof
CN105736198A (en) * 2016-02-26 2016-07-06 江苏大学 Rotor engine compound air inlet system with variable air inlet pipe and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975127A (en) * 2010-11-18 2011-02-16 重庆隆鑫机车有限公司 Air intake system capable of automatically adjusting air flow and motorcycle thereof
CN102011663A (en) * 2010-11-18 2011-04-13 重庆隆鑫机车有限公司 Engine air intake system and motorcycle thereof
CN105736198A (en) * 2016-02-26 2016-07-06 江苏大学 Rotor engine compound air inlet system with variable air inlet pipe and method

Also Published As

Publication number Publication date
KR100559593B1 (en) 2006-03-10

Similar Documents

Publication Publication Date Title
US8122870B2 (en) Blowby gas returning apparatus
US4991547A (en) Intake port pressure control system for engine induction system
US4617799A (en) Plural turbine inlet passage turbo-supercharger with inlet passage shut-off valve
US5009199A (en) Intake reservoir for an engine having a check valve
JPH05288123A (en) Exhaust gas circulation apparatus for internal combustion engine
US4986225A (en) Intake reservoir system for an engine having a check valve
JPS60164619A (en) Suction device for multicylinder internal-combustion engine
KR100559593B1 (en) Variable intake system
US20040000298A1 (en) Apparatus for inducing air for an engine
JPS58135323A (en) Air inlet device for diesel engine
JPH03199627A (en) Intake air device for engine
KR19990029143A (en) Intake apparatus of internal combustion engine
JPH0291419A (en) Suction system for internal combustion engine
TWI751808B (en) Single air intake channel type air intake regulating structure
JPS614821A (en) Intake device for internal-combustion engine
JP2995200B2 (en) Engine air supply
KR20030018708A (en) Air boost control system of car engine
JP3404407B2 (en) Engine intake system
KR200153107Y1 (en) Vacuum tank of variable intake system for reducing noise
JPH08109854A (en) Exhaust reflux control device for internal combustion engine
KR20050004968A (en) Variable intake system
JPS5856335Y2 (en) Exhaust turbocharged engine
KR100369134B1 (en) Air by-pass variable control system of turbo charger for vehicle
JPH11229884A (en) Engine supercharging structure and supercharging method
JPS61167123A (en) Intake device of engine

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130228

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20140227

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20150227

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee