KR20040031795A - Electronic type throttle body structure - Google Patents

Electronic type throttle body structure Download PDF

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Publication number
KR20040031795A
KR20040031795A KR1020020059655A KR20020059655A KR20040031795A KR 20040031795 A KR20040031795 A KR 20040031795A KR 1020020059655 A KR1020020059655 A KR 1020020059655A KR 20020059655 A KR20020059655 A KR 20020059655A KR 20040031795 A KR20040031795 A KR 20040031795A
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KR
South Korea
Prior art keywords
throttle body
hot water
base
throttle valve
throttle
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KR1020020059655A
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Korean (ko)
Inventor
신창현
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현대자동차주식회사
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Priority to KR1020020059655A priority Critical patent/KR20040031795A/en
Publication of KR20040031795A publication Critical patent/KR20040031795A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE: A structure of an electronic throttle body is provided to disperse force acting on a throttle body when an engine rolls and minimize interference, to prevent deterioration of coupling force between a plastic surge tank and the throttle body, to improve durability, and to prevent freezing of a throttle valve. CONSTITUTION: A driving motor(12) is installed on an upper side of a throttle body(10) to open and close a throttle valve(11). A power transmission part(13) is installed on a side of the throttle body to transmit power of the driving motor to the throttle valve. A base(14) has a space in which hot water is circulated, and coupled to the throttle body to prevent freezing of the throttle valve. Durability of the throttle body is improved thereby. A hot water input nipple(15) and a hot water discharge nipple(16) are coupled to a lower side of the base to continuously supply hot water into the base. The hot water input nipple and the hot water discharge nipple are connected with a coolant channel of an engine to supply coolant into the base.

Description

전자식 스로틀바디구조{Electronic type throttle body structure}Electronic throttle body structure

본 발명은 전자식 스로틀바디구조에 관한 것으로서, 특히 엔진 롤링시에도 스로틀바디에 가해지는 힘이 분산되어 간섭이 최소화되고, 플라스틱재질의 서지탱크와 스로틀바디 간의 볼트 체결력이 감소하지 않도록 하며, 제품의 내구성 향상 및 스로틀밸브의 동결방지를 꾀하여 엔진출력 향상의 부가적인 효과를 기대할 수 있도록 한 전자식 스로틀바디구조에 관한 것이다.The present invention relates to an electronic throttle body structure, in particular, the force applied to the throttle body is dispersed even when the engine rolling is minimized, so that the bolt fastening force between the surge tank and the throttle body made of plastic material is not reduced, the durability of the product The present invention relates to an electronic throttle body structure in which an additional effect of improving engine power is expected by improving and preventing freezing of a throttle valve.

기존에 적용중인 전자식 스로틀바디(ETC)는 스로틀밸브를 구동시키기 위한구동모터가 스로틀바디의 하측에 장착되어 전체적인 스로틀바디의 무게중심이 아래쪽에 형성되어 있다.The existing electronic throttle body (ETC) is equipped with a driving motor for driving the throttle valve at the lower side of the throttle body and the center of gravity of the entire throttle body is formed at the bottom.

이러한 기술은 전자식 스로틀바디가 장착되는 흡기매니폴드나 서지탱크가 알루미늄 재질로 형성되어 있어서 엔진 롤링(Rolling)시 상호간의 간섭이 최소화되도록 설계된 것이다.This technology is designed to minimize the mutual interference during engine rolling because the intake manifold or surge tank equipped with the electronic throttle body is made of aluminum.

만약, 전자식 스로틀바디에 구동모터를 상측에 설치하여 무게중심이 위에 있도록 설계하게되면, 엔진 롤링으로 인해 스로틀바디가 위로갔다가 다시 돌아오는 현상이 발생하는데, 이때 스로틀바디가 서지탱크와 결합되는 서지탱크의 좌면부분을 위에서 힘을 주며 누르는 효과가 발생하게된다.If the driving motor is installed on the upper side of the electronic throttle body so that the center of gravity is designed above, the throttle body moves upward and back due to the engine rolling, where the throttle body is coupled with the surge tank. Pressing on the seat of the upper part of the force will occur.

그러나, 서지탱크가 알루미늄 재질로서 형성되어 있어서 변형을 흡수하는 성질이 없으므로 롤링시 위에서 누르는 힘이 발생할때 서지탱크가 그 힘을 흡수하지 못하게되고, 이에의해 스로틀바디는 계속해서 내려가려고 하므로 서지탱크 좌면에서 볼트 체결력이 떨어져 내구력이 약해지는 문제가 발생하게 되는 것이며, 이러한 이유로 인해 흡기매니폴드와 서지탱크가 알루미늄 재질로 형성된 것에 있어서 전자식 스로틀밸브의 하측에 구동모터를 장착하는 것이다.However, since the surge tank is made of aluminum and has no property of absorbing deformation, the surge tank cannot absorb the force when a pressing force is generated during rolling, and as a result, the throttle body keeps descending, The problem is that the bolt fastening force is lowered and the durability is weakened. For this reason, the driving motor is mounted on the lower side of the electronic throttle valve in the intake manifold and the surge tank made of aluminum.

즉, 도 2 에 도시된 바와같이 스로틀밸브(2)를 구비하고 있는 스로틀바디(1)의 일측에 스로틀밸브(2)를 회전시키기 위한 동력전달부(4)를 설치하고, 스로틀바디(1)의 하측에 동력전달부(4)를 구동시켜 스로틀밸브(2)를 개폐시키는 구동모터(3)를 장착하는 것이다.That is, as shown in FIG. 2, a power transmission part 4 for rotating the throttle valve 2 is provided on one side of the throttle body 1 having the throttle valve 2, and the throttle body 1 is provided. The drive motor 3 for driving the power transmission unit 4 to open and close the throttle valve 2 is mounted on the lower side.

그러나, 종래와같이 스로틀바디의 하측에 구동모터를 장착하게되면 온수니플을 구비한 베이스를 스로틀바디의 하측에 장착할 수 없어서 추운 지방의 경우 스로틀밸브 하단부에 수증기나 카본 찌거기가 끼어서 동결되므로 스로틀밸브의 작동이 원활치 않게되고, 엔진부조 및 출력저하 현상이 발생하며, 최악의 경우 시동이 꺼지는 문제가 발생하고 있다.However, when the driving motor is mounted on the lower side of the throttle body as in the prior art, the base having the hot water nipple cannot be mounted on the lower side of the throttle body, so in the case of cold climates, steam or carbon residue is caught in the lower part of the throttle valve and the throttle valve is frozen. The operation of the engine is not smooth, the engine relief and output degradation occurs, and in the worst case the problem is that the start is turned off.

또한, 현재 개발되고 엔진은 무게를 줄여 단가를 감소시키고, 엔진을 경량화시켜 출력을 높이며 연비가 향상되도록 하기 위하여 흡기매니폴드와 서지탱크를 플라스틱 재질로서 제작하고 있는데, 이와같이 플라스틱 재질로서 형성된 흡기매니폴드와 서지탱크에 알루미늄 재질의 전자식 스로틀바디가 장착되었을때, 상기 스로틀바디의 하측에 구동모터를 장착하게되면,In addition, the intake manifold and surge tank are made of plastic material to reduce the unit cost by reducing the weight, reduce the weight of the engine, increase the power output, and improve the fuel efficiency. When the electronic throttle body made of aluminum is mounted to the surge tank and the driving motor is mounted on the lower side of the throttle body,

엔진 롤링으로 인해 스로틀바디가 위로 올라간 후 다시 내려올때 서지탱크나 흡기매니폴드는 플라스틱이고 전자식 스로틀바디는 알루미늄이어서 진동주파수가 서로 달라 그 진동에 의한 간섭현상이 발생하게 되고, 또 플라스틱 재질의 특성상 스로틀바디가 내려올때 발생하는 변형을 흡수하기 때문에 스로틀바디와 서지탱크의 결합부위가 변형되어 내구력이 악화되는 문제점이 발생하는 것이다.When the throttle body is raised up and down again due to engine rolling, the surge tank or intake manifold is made of plastic and the electronic throttle body is made of aluminum, so the vibration frequency is different and the interference caused by the vibration is generated. Since the absorbed deformation occurs when the body is lowered, the coupling part of the throttle body and the surge tank is deformed, and thus the durability is deteriorated.

따라서, 상기 문제점을 해결하기 위한 본 발명은 알루미늄 재질로서 형성된 전자식 스로틀바디의 상측에 스로틀밸브 구동을 위한 구동모터를 장착하여 무게중심이 상측에 존재하도록 하고, 스로틀바디의 하측에 스로틀밸브의 동결 방지를 위한 온수 순환용 베이스부재를 설치하므로서, 엔진 롤링시에도 스로틀바디에 가해지는 힘이 분산되어 간섭이 최소화되고, 플라스틱재질의 서지탱크와 스로틀바디 간의볼트 체결력이 감소하지 않도록 하며, 제품의 내구성 향상 및 스로틀밸브의 동결방지를 꾀하여 엔진출력 향상의 부가적인 효과를 기대할 수 있도록 한 전자식 스로틀바디구조를 제공함을 목적으로 한다.Therefore, the present invention for solving the above problems is equipped with a drive motor for driving the throttle valve on the upper side of the electronic throttle body formed of aluminum material so that the center of gravity is present in the upper side, and prevent the freezing of the throttle valve on the lower side of the throttle body By installing the hot water circulation base member for the engine, the force applied to the throttle body is distributed even when the engine is rolled to minimize interference, and the bolt fastening force between the plastic surge tank and the throttle body is not reduced and the durability of the product is improved. And to provide an electronic throttle body structure that can be expected to the additional effect of improving the engine power by preventing the freezing of the throttle valve.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

플라스틱 재질로서 형성된 흡기매니폴드와 서지탱크에 접속되는 알루미늄 재질의 전자식 스로틀바디에 있어서,In the electronic throttle body made of plastic material and connected to the intake manifold and surge tank,

스로틀바디의 상측에 스로틀밸브 개폐를 위한 구동모터를 설치하고, 스로틀바디 측면에 구동모터의 동력을 스로틀밸브로 전달하기 위한 동력전달부를 설치하며, 내부에 온수가 순환되는 공간을 구비한 베이스를 결합하여 스로틀밸브의 동결을 방지하면서 스로틀바디의 내구성이 향상되도록 한 것을 특징으로 한다.A drive motor for opening and closing the throttle valve is installed on the upper side of the throttle body, a power transmission part is installed on the side of the throttle body to transfer the power of the drive motor to the throttle valve, and a base having a space where hot water is circulated inside is combined. It is characterized in that to improve the durability of the throttle body while preventing the freezing of the throttle valve.

또한 상기 베이스의 하측으로 온수입력니플과 온수배출니플을 결합하여 상기 베이스 내부로 온수가 연속적으로 공급될 수 있도록 한 것을 특징으로 하며,In addition, the hot water input nipple and the hot water discharge nipple is coupled to the lower side of the base so that the hot water can be continuously supplied into the base,

상기 온수입력니플과 온수배출니플은 엔진의 냉각수통로와 연결되도록 하여 베이스로 냉각수가 공급되도록 한 것을 특징으로 한다.The hot water input nipple and the hot water discharge nipple are connected to the cooling water passage of the engine, characterized in that the cooling water is supplied to the base.

도 1 은 본 발명의 전자식 스로틀바디구조를 보인 도면.1 is a view showing an electronic throttle body structure of the present invention.

도 2 는 종래의 전자식 스로틀바디구조를 보인 도면.2 is a view showing a conventional electronic throttle body structure.

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

10 : 스로틀바디 11 : 스로틀밸브10: Throttle Body 11: Throttle Valve

12 : 구동모터 13 : 동력전달부12: drive motor 13: power transmission unit

14 : 베이스 15 : 온수입력니플14: Base 15: hot water input nipple

16 : 온수배출니플16: hot water discharge nipple

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.

도면부호 10 은 알루미늄 재질로서 형성되는 전자식 스로틀바디를 나타내며, 이 스로틀바디(10)의 내부에는 흡기량 조절을 위한 스로틀밸브(11)가 설치되어 있다.Reference numeral 10 denotes an electronic throttle body formed of an aluminum material, and a throttle valve 11 for adjusting the intake air amount is provided inside the throttle body 10.

상기한 스로틀바디(10)는 플라스틱 재질로서 형성되는 흡기매니폴드와 서지탱크에 접속되는데, 본 발명에서는 엔진 롤링시 발생하게되는 서지탱크의 변형을 방지하기 위하여 스로틀바디(10)의 상측에 구동모터(12)를 장착하고, 상기 구동모터(12)로부터 전달되는 동력으로 스로틀밸브(11)를 개폐시키는 동력전달부(13)를 스로틀바디(10)의 일측면에 형성하였다.The throttle body 10 is connected to the intake manifold and the surge tank formed of a plastic material, in the present invention, the drive motor on the upper side of the throttle body 10 to prevent deformation of the surge tank generated when the engine is rolling. (12) was mounted, and a power transmission portion 13 for opening and closing the throttle valve 11 by the power transmitted from the drive motor 12 was formed on one side of the throttle body (10).

상기 설명과같이 구동모터(12)를 스로틀바디(10)의 상측에 설치하게되면,If the drive motor 12 is installed above the throttle body 10 as described above,

스로틀바디(10)의 전체적인 무게중심이 상측에 형성되므로, 엔진 롤링시 스로틀바디(10)가 상승하였다가 하락할때 그 하강하는 힘을 서지탱크 위 부분에서 아래까지 분산시켜 스로틀바디(10)가 결합된 서지탱크의 좌면의 변형을 최소화할 수 있게되는 것이다.Since the entire center of gravity of the throttle body 10 is formed on the upper side, when the throttle body 10 rises and falls during rolling, the throttle body 10 is coupled by dispersing the descending force from the upper part of the surge tank to the lower part. It is possible to minimize the deformation of the seat of the surge tank.

스로틀바디(10)가 결합된 서지탱크의 변형을 최소화시키게 되면, 그 결합부분에 결합되어있는 볼트의 체결력 감쇄를 억제하여 내구력을 향상시키는 효과를 기대할 수 있게된다.When the throttle body 10 is minimized the deformation of the coupled surge tank, it is possible to expect the effect of improving the durability by suppressing the clamping force attenuation of the bolt coupled to the coupling portion.

한편, 상기 설명과같이 구동모터(12)를 전자식 스로틀바디(10)의 상측에 설치함에 따라 스로틀바디(10)의 하측 공간에 스로틀밸브(11)의 동결현상을 방지하기 위한 온수 순환라인을 설치할 수 있다.On the other hand, as the drive motor 12 is installed on the upper side of the electronic throttle body 10 as described above to install a hot water circulation line for preventing the freezing phenomenon of the throttle valve 11 in the lower space of the throttle body 10 Can be.

즉, 도 1 에 도시된 바와같이 내부에 온수의 순환통로가 형성되어 있는 베이스(14)를 스로틀바디(10)의 저면에 결합하고, 이 베이스(14)의 하측으로 온수입력니플(15)과 온수배출니플(16)을 일정간격으로 설치하여 구성한 것이다.That is, as shown in FIG. 1, the base 14 having the circulation passage of hot water formed therein is coupled to the bottom of the throttle body 10, and the hot water input nipple 15 and the lower side of the base 14 are connected to each other. The hot water discharge nipple 16 is installed at regular intervals.

상기 온수는 엔진 냉각수를 사용한다.The hot water uses engine coolant.

상기와같이 스로틀바디(10)의 하측으로 온수가 순환되는 베이스(14)가 설치되면, 엔진 구동시 온수(상온의 냉각수)가 상기 베이스(14)를 순환하게 되므로서, 스로틀밸브(11)의 하측에 수증기나 카본이 동결되지 않게되어 스로틀밸브(11)의 동작특성을 확보할 수 있고, 이에의해 엔진으로 공기를 충분히 공급할 수 있으므로 엔진부조 및 출력저하를 방지하게되는 부가적인 효과를 기대할 수 있다.As described above, when the base 14 through which hot water is circulated to the lower side of the throttle body 10 is installed, hot water (cooling water at room temperature) circulates the base 14 when the engine is driven, Water vapor or carbon is not frozen in the lower side to ensure the operating characteristics of the throttle valve 11, thereby providing sufficient air to the engine can be expected to have the additional effect of preventing engine relief and output degradation. .

이상에서 설명한 바와같이 본 발명은 알루미늄 재질로서 형성된 전자식 스로틀바디의 상측에 스로틀밸브 구동을 위한 구동모터를 장착하여 무게중심이 상측에 존재하도록 하고, 스로틀바디의 하측에 스로틀밸브의 동결 방지를 위한 온수 순환용 베이스부재를 설치하므로서, 엔진 롤링시에도 스로틀바디에 가해지는 힘이 분산되어 간섭이 최소화되고, 플라스틱재질의 서지탱크와 스로틀바디 간의 볼트 체결력이 감소하지 않도록 하며, 제품의 내구성 향상 및 스로틀밸브의 동결방지를 꾀하여 엔진출력 향상의 부가적인 효과를 기대할 수 있도록 한 전자식 스로틀바디구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention is equipped with a drive motor for driving the throttle valve on the upper side of the electronic throttle body formed of aluminum material so that the center of gravity is present in the upper side, the hot water for preventing freezing of the throttle valve in the lower side of the throttle body By installing the base member for circulation, the force applied to the throttle body is distributed even when the engine is rolling, minimizing interference, preventing the bolt fastening force between the surge tank and the throttle body made of plastic, and improving the durability of the product and the throttle valve It can be expected to provide an electronic throttle body structure that can prevent the freezing of the engine, thereby allowing the additional effect of improving the engine power.

Claims (3)

플라스틱 재질로서 형성된 흡기매니폴드와 서지탱크에 접속되는 알루미늄 재질의 전자식 스로틀바디에 있어서,In the electronic throttle body made of plastic material and connected to the intake manifold and surge tank, 스로틀바디의 상측에 스로틀밸브 개폐를 위한 구동모터를 설치하고, 스로틀바디 측면에 구동모터의 동력을 스로틀밸브로 전달하기 위한 동력전달부를 설치하며, 내부에 온수가 순환되는 공간을 구비한 베이스를 결합하여 스로틀밸브의 동결을 방지하면서 스로틀바디의 내구성이 향상되도록 한 것을 특징으로 하는 전자식 스로틀바디구조.A drive motor for opening and closing the throttle valve is installed on the upper side of the throttle body, a power transmission part is installed on the side of the throttle body to transfer the power of the drive motor to the throttle valve, and a base having a space where hot water is circulated inside is combined. Electronic throttle body structure characterized in that to improve the durability of the throttle body while preventing the freezing of the throttle valve. 제 1 항에 있어서,The method of claim 1, 상기 베이스의 하측으로 온수입력니플과 온수배출니플을 결합하여 상기 베이스 내부로 온수가 연속적으로 공급될 수 있도록 한 것을 특징으로 하는 전자식 스로틀바디구조.An electronic throttle body structure comprising hot water input nipples and hot water discharge nipples coupled to the lower side of the base to continuously supply hot water into the base. 제 2 항에 있어서,The method of claim 2, 상기 온수입력니플과 온수배출니플은 엔진의 냉각수통로와 연결되도록 하여 베이스로 냉각수가 공급되도록 한 것을 특징으로 하는 전자식 스로틀바디구조.The hot water input nipple and the hot water discharge nipple is connected to the cooling water passage of the engine electronic throttle body structure, characterized in that the cooling water is supplied to the base.
KR1020020059655A 2002-10-01 2002-10-01 Electronic type throttle body structure KR20040031795A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210011587A (en) 2019-07-23 2021-02-02 주식회사 현대케피코 Method for manufacturing throttle body of Electronic Throttle Control apparatus and bearing caulking tool used therein

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EP0628710A1 (en) * 1993-06-09 1994-12-14 General Motors Corporation A throttle mechanism
KR19980062572A (en) * 1996-12-30 1998-10-07 김영귀 Electronically Controlled Throttle Valve for Automotive Engine
JP2001123855A (en) * 1999-10-21 2001-05-08 Unisia Jecs Corp Throttle valve device
JP2001271660A (en) * 2000-03-29 2001-10-05 Denso Corp Throttle body and throttle device using the same
KR20010101959A (en) * 1999-03-29 2001-11-15 가나이 쓰토무 Electronically controlled throttle device
KR20040024097A (en) * 2002-09-13 2004-03-20 현대자동차주식회사 Icing checking device of throttle valve

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
EP0628710A1 (en) * 1993-06-09 1994-12-14 General Motors Corporation A throttle mechanism
KR19980062572A (en) * 1996-12-30 1998-10-07 김영귀 Electronically Controlled Throttle Valve for Automotive Engine
KR20010101959A (en) * 1999-03-29 2001-11-15 가나이 쓰토무 Electronically controlled throttle device
JP2001123855A (en) * 1999-10-21 2001-05-08 Unisia Jecs Corp Throttle valve device
JP2001271660A (en) * 2000-03-29 2001-10-05 Denso Corp Throttle body and throttle device using the same
KR20040024097A (en) * 2002-09-13 2004-03-20 현대자동차주식회사 Icing checking device of throttle valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210011587A (en) 2019-07-23 2021-02-02 주식회사 현대케피코 Method for manufacturing throttle body of Electronic Throttle Control apparatus and bearing caulking tool used therein

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