KR20160084988A - Throttle valve for vehicle - Google Patents

Throttle valve for vehicle Download PDF

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Publication number
KR20160084988A
KR20160084988A KR1020150001782A KR20150001782A KR20160084988A KR 20160084988 A KR20160084988 A KR 20160084988A KR 1020150001782 A KR1020150001782 A KR 1020150001782A KR 20150001782 A KR20150001782 A KR 20150001782A KR 20160084988 A KR20160084988 A KR 20160084988A
Authority
KR
South Korea
Prior art keywords
valve plate
throttle body
valve
throttle
flow path
Prior art date
Application number
KR1020150001782A
Other languages
Korean (ko)
Inventor
임명환
Original Assignee
주식회사 현대케피코
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 주식회사 현대케피코 filed Critical 주식회사 현대케피코
Priority to KR1020150001782A priority Critical patent/KR20160084988A/en
Publication of KR20160084988A publication Critical patent/KR20160084988A/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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof

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

Abstract

The present invention relates to a throttle valve for a vehicle, and more particularly, to a throttle valve for a vehicle, which comprises a throttle body having a passage for transferring sucked vehicle outside air to the engine side and having a step portion on its inner surface, And a valve plate that closes the flow path by contacting the step portion, thereby preventing wear and damage of the inner surface of the throttle body due to repeated operation of the valve plate, Thereby reducing the phenomenon of sticking to the surface of the substrate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a throttle valve for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throttle valve for a vehicle, and more particularly, to a throttle valve for a vehicle that adjusts a flow rate of a sucked vehicle outside air and feeds the throttle valve to an engine side.

Generally, a throttle valve for a vehicle is connected to an accelerator pedal of a driver's seat and opened / closed to adjust the suction amount of the vehicle's outside air. The outside air of the vehicle is generally introduced into the throttle valve after removing the impurities through the air cleaner. The vehicle outside air whose amount is controlled by the throttle valve is sent to the combustion chamber at the engine side and used for the combustion process.

The conventional throttle valve is connected to the accelerator pedal through a wire, and the opening and closing of the throttle valve is controlled depending on whether the pedal is mechanically depressed. In recent years, the throttle valve senses the state of the accelerator pedal, An electronically controlled throttle valve for controlling the opening and closing of the throttle valve is generally used.

In this regard, Korean Patent Laid-Open Publication No. 2002-0055746 (Patent Document 1) has been disclosed as a prior art related to a conventional vehicle throttle valve.

Patent Document 1 discloses a technique in which the distribution of intake air is improved so that the intake air supplied to each combustion chamber in the throttle body is uniformly distributed to the distribution pipes, thereby reducing the difference in the air-fuel ratio between the combustion chambers. However, the throttle valve disclosed in Patent Document 1 has the same problems as the conventional throttle valve to be described later with reference to Fig. 1 and Fig.

1 is a cross-sectional view showing a conventional throttle valve, and Fig. 2 is a partially enlarged view of a portion A in Fig.

1 and 2, a conventional throttle valve includes a throttle body 1 and a valve plate 2.

One end of the throttle body 1 is fixedly connected to the intake end side of the engine and the other end is provided so as to communicate with the outside air inflow path. In this case, the inner surface 1a of the throttle body 1 forms a flow path for transferring the vehicle outside air sucked mainly into the cylindrical inner circumferential surface to the engine side.

The valve plate 2 is mounted on the throttle body 1 so as to be rotatable about its axis. In this case, not only the motor 3 that provides the shaft rotational driving force but also the gear train that amplifies the rotational force of the motor 3 and the state of the pressing degree of the accelerator pedal and the intake air temperature of the engine And a control unit for controlling the motor 3 may be further provided.

The valve plate 2 contacts the inner surface 1a of the throttle body 1 in accordance with the rotation of the shaft so as to open and close the flow path. 2, the end 2a of the valve plate 2 is connected to the inner surface 1a of the throttle body 1 so as to effectively close the flow path, And is tapered so as to have predetermined angles? And? With the upper surface 2b and the lower surface 2c, respectively.

However, since the conventional throttle valve as described above has to be tapered and sharpened at the end 2a of the valve plate 2, the inner surface of the throttle body 1 1a is likely to be abraded or damaged.

In addition, there is a problem that the risk of injury to the user increases when the throttle valve is assembled or installed by the end portion 2a of the valve plate 2 configured to be tapered and sharpened.

When foreign substances such as carbon accumulate on the inner surface 1a of the throttle body 1 due to engine backlash or the like or when the valve plate 2 rotates more than the channel closing position set by the over operation of the motor 3, There is a problem that the valve plate 2 is stuck to the inner surface 1a of the throttle body 1 and fixed thereto.

Korean Patent Publication No. 2002-0055746

In order to solve the above problems, it is an object of the present invention to provide a vehicle throttle valve which reduces the possibility of wear and damage of the inner surface of the throttle body due to repeated operation of the valve plate, .

It is also an object of the present invention to provide a throttle valve for a vehicle that reduces the risk of injury to a user when assembling or installing the throttle valve, since the end portion of the valve plate does not need to be tapered and sharpened.

Another object of the present invention is to provide a vehicle throttle valve in which a predetermined clearance space is formed when the valve plate is in the flow path closing position, thereby reducing the phenomenon that the valve plate is stuck on the inner surface of the throttle body.

A throttle valve for a vehicle according to an embodiment of the present invention includes a throttle body having a passage for transferring sucked vehicle outside air to an engine side and having a step portion at an inner side thereof and a throttle body installed axially rotatably on the throttle body, And a valve plate that adjusts the cross-sectional size of the flow path and contacts the step portion to close the flow path.

In this case, it is preferable that the valve plate is in surface contact with the step portion to close the flow path.

In addition, when the valve plate is in contact with the step portion, it is preferable that the end portion of the valve plate and the inner surface of the throttle body are spaced apart from each other to form a clearance space.

As described above, the throttle valve for a vehicle according to the present invention does not need to be tapered and sharpened at the end portion of the valve plate, thereby reducing the possibility of wear and damage to the inner surface of the throttle body due to repeated operation of the valve plate.

In addition, the vehicle throttle valve according to the present invention does not need to have a tapered and sharpened end portion of the valve plate, thereby reducing the risk of injury to the user when assembling or installing the throttle valve.

Further, in the throttle valve for a vehicle according to the present invention, when the valve plate is in the flow path closing position, a predetermined clearance space is formed to reduce the phenomenon that the valve plate is stuck to the inner surface of the throttle body.

1 is a cross-sectional view of a conventional throttle valve.
2 is a partially enlarged view of a portion A in Fig.
3 is a cross-sectional view illustrating a throttle valve according to an embodiment of the present invention.
4 is a partially enlarged view of a portion B in Fig.

The accompanying drawings in the present invention may be exaggerated for clarity, clarity, and descriptive convenience. In addition, since the following terms are defined in consideration of the functions of the present invention, they may vary depending on the intention or custom of the user, the operator, and the definitions of these terms should be based on the technical contents throughout this specification will be. On the contrary, the embodiments are merely illustrative of the constituent elements set forth in the claims of the present invention and do not limit the scope of the present invention, and the scope of the rights should be interpreted on the basis of technical ideas throughout the specification of the present invention .

FIG. 3 is a cross-sectional view of a throttle valve according to an embodiment of the present invention, and FIG. 4 is a partially enlarged view of a portion B of FIG.

3 and 4, a throttle valve according to an embodiment of the present invention includes a throttle body 10 and a valve plate 20. As shown in FIG.

As described above, the throttle body 10 is provided so that one end thereof is fixedly connected to the intake end side of the engine and the other end thereof is in communication with the outside air inflow path. In addition, the inner side surface 10a of the throttle body 10 forms a flow path for transferring the sucked vehicle outside air to the engine side.

The inner surface 10a of the throttle body 10 is further provided with a step portion 10b unlike the prior art. The step portion 10b is provided so as to close the flow path while the valve plate 2 to be described later is in contact.

The valve plate 20 is rotatably mounted on the throttle body 10. As described above, in the case of the electronically controlled throttle valve, the valve train 20 is rotated by the motor 30, and the gear train for amplifying the rotational force of the motor 30, which is a general configuration, And a control unit for controlling the motor 30 by sensing a state of an intake air temperature of the engine, and the like.

The valve plate 20 contacts the step portion 10b of the throttle body 10 in accordance with the rotation of the shaft to close the flow path.

That is, as shown in FIG. 4, the valve plate 20 is in contact with the upper surface 20b of the shaft-rotation step portion 10b when the flow path is closed, thereby closing the flow path. At the same time, the opposite side of the valve plate 20 is brought into contact with the step portion 10b and the bottom surface 20c thereof to close the flow path.

In this case, it is preferable that the upper surface 20b or the bottom surface 20c of the valve plate 20 is in surface contact with the step portion 10b for more complete flow path closure.

The valve plate 20 is brought into contact with the step portion 10b of the throttle body 10 to close the flow path so that the end portion 20a of the valve plate 20 is closed during the flow path closing operation, It is not necessary to form a tapered and sharpened shape so as not to catch on the inner side surface 10a. That is, the end portion 20a of the valve plate 20 does not need to form a predetermined angle with the upper surface 20b and the lower surface 20c, respectively, so as to effectively close the flow path.

Therefore, in order to prevent the possibility that the inner surface 1a of the throttle body 1 is worn or damaged due to the repeated operation of the valve plate 2 unlike the prior art, the valve plate 20 is attached to the step portion 10a The end 20a of the valve plate 20 and the inner side 10b of the throttle body 10 may be spaced apart from each other by a predetermined distance so as to form the clearance space 15. [

4, when the length of the end portion 20a of the valve plate 20 is shortened, the gap 20a between the end portion 20a of the valve plate 20 and the throttle body 10, Not only the inner surface 10b of the throttle body 10 but also the step portion 10b of the throttle body 10 can be formed.

The valve plate 20 can be provided in various shapes such as a predetermined rounded corner or a right angle where the end portion 20a does not touch the inner surface 10b of the throttle body 10, The possibility of wear and damage to the inner surface 10b of the throttle body 10 due to the repeated operation and the risk of injury to the user at the time of assembling or installing the throttle valve are reduced.

Even if foreign substances such as carbon are accumulated on the inner surface 1a of the throttle body 1 due to engine backlash or the like in the clearance space 15, before the valve plate 20 is piled up to a certain thickness or more, Is not caught in the inner surface (1a) of the main body (1), thereby realizing the function of opening and closing the main flow path.

As described above, the vehicle throttle valve according to the present invention reduces the possibility of wear and damage of the inner surface of the throttle body due to repeated operation of the valve plate, reduces the risk of injury to the user during assembly or installation of the throttle valve, Thereby reducing the phenomenon that the valve plate is stuck on the inner surface of the throttle body.

As described above, the present invention has been described with reference to the embodiments shown in the drawings. However, it should be understood that the present invention is by way of example only and that various modifications and equivalent embodiments are possible on the basis of common knowledge in the art . Therefore, the true technical protection scope of the present invention should be determined based on the specific contents of the above-mentioned invention in accordance with the claims to be described below.

The present invention relates to a throttle valve for a vehicle, and is applicable to industrial fields related to automobile engine parts.

1: sunroof controller 2: opening / closing drive motor
10: Throttle body 10a: Inner side
10b:
15: Clearance space
20: valve plate 20a: end
20b: top surface 20c: bottom surface
30: Motor

Claims (3)

A throttle body forming a flow path for transferring the sucked vehicle outside air to the engine side, the throttle body having a step portion on an inner surface thereof; And
A valve plate which is installed on the throttle body so as to be rotatable about an axis and regulates the cross-sectional area of the flow path according to the rotation of the throttle body, and closes the flow path by contacting the step portion;
And a throttle valve.
2. The valve according to claim 1,
Wherein the valve is in surface contact with the step portion to close the flow path.
The method according to claim 1,
Wherein an end portion of the valve plate and an inner surface of the throttle body are spaced apart from each other by a predetermined distance so as to form a clearance space when the valve plate is in contact with the step portion.

KR1020150001782A 2015-01-07 2015-01-07 Throttle valve for vehicle KR20160084988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150001782A KR20160084988A (en) 2015-01-07 2015-01-07 Throttle valve for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150001782A KR20160084988A (en) 2015-01-07 2015-01-07 Throttle valve for vehicle

Publications (1)

Publication Number Publication Date
KR20160084988A true KR20160084988A (en) 2016-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150001782A KR20160084988A (en) 2015-01-07 2015-01-07 Throttle valve for vehicle

Country Status (1)

Country Link
KR (1) KR20160084988A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020055746A (en) 2000-12-29 2002-07-10 이계안 Throttle valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020055746A (en) 2000-12-29 2002-07-10 이계안 Throttle valve

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