• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a variable surge tank for a vehicle that can minimize intake pulsation in an intake cylinder by changing a volume of an internal air spring constant. In the surge tank (1), the piston (4) is installed to be movable while forming an inflow chamber (3) inside the tank (1), and an inner surface of the piston (4) and a tank facing the inner surface. (1) the hydraulic plate (5) for supplying the electric fluid through the conduit to the electrode plate (7) which is energized between the inner wall, the inlet chamber (3) between the electrode plate (7), and the electric fluid It comprises a reservoir tank (6) for storing and connected to the hydraulic pump (5). With this configuration, the internal volume of the surge tank can be adjusted to a size suitable for the current operating state to minimize the pulsation generated in the intake cylinder, thereby improving the mixing rate of the mixer to significantly increase the efficiency of the engine.
    公开号:KR19980046356A
    申请号:KR1019960064679
    申请日:1996-12-12
    公开日:1998-09-15
    发明作者:배성진
    申请人:박병재；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Variable Surge Tank for Automotive
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable surge tank for an automobile. More specifically, an automobile capable of minimizing intake pulsation in an intake cylinder by changing an internal volume to change an inherent air spring constant. A variable surge tank for a
    The upper part of the engine of an automobile is comprised with the cylinder head provided with the intake / exhaust valve, and the head cover which covers and protects a cylinder head.
    An intake pipe and an exhaust pipe are respectively connected to the cylinder head, and in general, a surge tank is connected to the intake pipe.
    The surge tank is mounted on a fuel injection engine that directly injects fuel into an intake pipe, and refers to a tank provided between the intake pipe and the throttle valve so that pulsation does not occur in the intake system.
    That is, in the fuel injection system, the intake pulsation sometimes adversely affects the degree of the air flow meter, and it is the surge tank that serves to remove it. Such a surge tank also serves to prevent the intake cylinder interference effect.
    The conventional surge tank is a cylindrical tank having a rectangular cross section, which is installed adjacent to the cylinder cover.
    One side of the surge tank is provided with a tube of a predetermined diameter is connected to the inlet pipe to suck air from the outside, the other side is provided with a plurality of smaller diameter pipe is connected to a plurality of intake pipes connected to the combustion chamber of each cylinder.
    In addition, the inlet pipe adjacent to the surge tank inlet is provided with a throttle valve for adjusting the intake air amount.
    In such a configuration, the surge tank connects the inlet pipe and the intake pipe, and serves to suppress the pulsation of the intake air flowing from the inlet pipe to the intake pipe.
    However, in the conventional automotive surge tank as described above, since the air spring constant is limited to one inherent constant according to the volume because the volume change inside thereof is impossible, the pulsation of the intake air can be effectively prevented when the amount or speed of intake air is different. There was a problem that could not be prevented.
    The present invention has been made to solve the problems of the conventional surge tank as described above, by changing the volume of the spring according to the amount or speed of intake air to change the spring constant, regardless of the amount or speed of intake An object of the present invention is to provide a variable surge tank for automobiles capable of suppressing the occurrence of pulsations.
    1 is a cross-sectional view of a variable surge tank for a vehicle of the present invention.
    Figure 2 is a cross-sectional view of the electrode plate showing the electrical action of the present invention.
    Explanation of symbols on the main parts of the drawings
    1: surge tank 2: conduit
    3: inflow chamber 4: piston
    5: hydraulic pump 6: reservoir tank
    7: electrode plate
    The present invention for achieving the above object is a vehicle surge tank for removing pulsation of intake air between the throttle valve and the intake pipe, a piston for forming an inlet chamber in the surge tank, the inner surface of the piston and the tank inner wall It includes two electrode plates that are installed facing each other, a hydraulic pump for supplying an electric fluid (Electrorheological Fluid) to the inlet chamber.
    In such a configuration, by supplying a predetermined amount of electric fluid to the inlet chamber and energizing it to solidify the fluid, the volume inside the surge tank can be adjusted to the size desired by the user.
    Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.
    1 is a cross-sectional view of a variable surge tank for a vehicle of the present invention, Figure 2 is an electrical configuration of the present invention.
    As shown, the variable surge tank for automobile 1 of the present embodiment is a cylindrical body installed in the longitudinal direction in the intake pipe, one side is provided with two conduits 1a connected to the intake pipe 2, In an unshown portion, a conduit (not shown) connected to an inlet pipe (not shown) for sucking outside air is installed.
    And the other side is provided with a piston (4) for forming the inlet chamber (3) isolated inside the moving. A conduit 1b is formed on the other side wall and connected to the hydraulic pump 5, which is connected to the reservoir tank 6 storing the electric fluid. Thus, the hydraulic pump 5 can pump the electric fluid into the inlet chamber 3 in accordance with the operation.
    The electrofluid used here is a special liquid that has an electrical special property, that is, it coagulates when electricity is applied and liquefies again when electricity is cut off.
    On the other hand, the inner plate of the piston 4 forming the inflow chamber 3 and the inner plate of the tank 1 facing the inner surface of the piston 4 are provided with electrode plates 7 connected by one circuit, respectively. The configuration of this electrode plate 7 is shown in FIG.
    On the other hand, the internal volume of the surge tank 1 which determines the air spring constant of the surge tank 1 is
    The air spring constant k of this volume is
    As can be seen from this equation, the air spring constant k is variable in the volume of the surge tank, i.e., the moving distance h of the piston 4, so that the spring constant k also varies when the piston 4 is moved.
    Air spring constant adjustment of the surge tank 1 of the present invention by the movement of the piston (4) is made as follows.
    First, the hydraulic pump 5 is operated to introduce or discharge the reservoir tank 6 electric fluid into the inflow chamber 3 to move the piston 4. The hydraulic pump 5 is turned off at the position where the piston 4 makes the volume of the surge tank 1 in a proper state, and a predetermined volume of electric fluid is filled between the electrode plates 7 of the inflow chamber 3. , The piston 4 is stopped.
    When the electrode plate 7 is energized in such a state, the electric fluid solidifies due to its special property. Thus, the piston 4 adheres to its current position by the solidified electric fluid. Therefore, the internal volume of the surge tank 1 is maintained in a properly adjusted state as the solidified electric fluid restricts the movement of the piston 4.
    As described above, the surge tank 1 can be adjusted by the spring constant while the position of the piston 4 is variable, so that the user has an air spring constant that can minimize the intake pulsation in the current intake state Can be used after adjustment.
    According to the present invention as described in detail above, since the internal volume can be changed according to the amount or speed of intake air, the air spring constant inherent in the surge tank can be changed. Minimization can increase the combustion efficiency of the mixer. Therefore, the efficiency of the engine can be greatly improved.
    The present invention can be variously modified and implemented by those skilled in the art without departing from the gist of the invention as claimed in the claims, and therefore the invention is not limited to the specific embodiments described above. Do not.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] An automobile surge tank installed between a throttle valve and an intake pipe to remove pulsation of an intake air, comprising: a piston installed to be movable while forming an inflow chamber on one side of the surge tank, and a piston forming the inflow chamber; An electrode plate attached to an inner surface and an inner wall of the tank facing the inner surface, a power supply for supplying current to each of the electrode plates, and a hydraulic pump for supplying electric fluid solidified when energizing the inflow chamber through a conduit; A variable surge tank for automobiles, comprising a storage tank for storing electric fluid supplied to a hydraulic pump.
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    同族专利:
    公开号 | 公开日
    KR100224200B1|1999-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-12|Application filed by 박병재, 현대자동차 주식회사
    1996-12-12|Priority to KR1019960064679A
    1998-09-15|Publication of KR19980046356A
    1999-10-15|Application granted
    1999-10-15|Publication of KR100224200B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960064679A|KR100224200B1|1996-12-12|1996-12-12|Variable surge tank for auto cars|
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