KR19990028465U - Throttle Cam Structure of Automotive Throttle Body - Google Patents

Abstract

The present invention relates to a throttle cam structure of a throttle body for an automobile, in a throttle body (2) of an automobile, provided with a link device (40) rotated on one side of the throttle body (2) according to the pedaling force of the accelerator pedal. The link device 40 has one end connected to an accelerator pedal and a predetermined link device, and the other end includes a first link 50 rotatably hinged to one side of the throttle body 2 and the first link 50. One end of the link 50 is provided with a second link 60 connected to one end thereof, and the other end of the second link 60 is connected to one end of a throttle cam 70 provided at the lower end thereof. The throttle cam 70 is interlocked with a central portion thereof connected to the rotation shaft 14 of the throttle body 2, and the other end is interposed between the throttle cam 70 and the throttle body 2 and the throttle cam 70. One end of the return spring 78 providing restoring force to the first link 50 is connected. The first link 50 and the throttle cam 70 are locked to the flange 6 of the throttle body 2 when the throttle valve 10 is opened and closed, thereby allowing the driver to operate the throttle pedal accordingly. Since the cam has a good response, the opening and closing of the throttle valve can be performed quickly, so that the driver's riding comfort can be improved and the driving performance of the vehicle can be improved.

Description

Throttle Cam Structure of Automotive Throttle Body

The present invention relates to a throttle cam structure of a throttle body for a vehicle. More specifically, the throttle cam structure of a throttle body is provided with a linkage to a throttle cam of a throttle body. The throttle cam structure of the throttle body for automobiles to improve the running performance of the.

As is well known, the internal combustion engine burns the mixer sucked into the combustion chamber, and causes the piston to reciprocate up and down linearly with the explosive force generated therein, and converts the linear reciprocating motion into rotational motion as a crank mechanism to obtain rotational power. It may be a representative example.

Such an automobile engine is made by mutual coupling between a plurality of parts. Among the parts, a throttle body is provided. The throttle body includes a throttle valve for controlling the intake air amount, and a small amount to secure an idling rotation speed. The bypass passage through the air, the throttle position sensor for detecting the opening of the throttle valve and the dash port are provided.

The bypass passage of the throttle body allows the air introduced from the air cleaner to the intake manifold through a passage through which air required for idling rotation passes through an inner side of the throttle body.

1 is a front view illustrating a throttle body of a conventional vehicle, and FIG. 2 is a side view of the throttle body of the conventional vehicle viewed from the direction "A" of FIG.

Although not shown in the accompanying drawings, the throttle body 2 is provided on one side of the air intake hose connecting the air cleaner and the surge tank to supply air through the air cleaner to the intake manifold.

And, as shown in the accompanying drawings, the center of the throttle body (2) is formed through the guide tube 4 is connected to the air intake hose, the inner side of the guide tube 4 of the disk-shaped throttle valve 10 is rotatably provided.

The throttle valve (10) provided inside the throttle body (2) to open and close the pipe of the guide pipe (4) is prevented from being pressed into the guide pipe (4) of the throttle body (2) 10 is inclined at a predetermined angle, that is, about 4 degrees, to be mounted on the guide tube 4 of the throttle body 2.

In addition, the throttle valve 10 is connected to the rotary shaft 14 of the throttle body 2, the rotary shaft 14 is spaced apart from the throttle body 2 by a predetermined distance to the throttle cam 12 is rotatably provided Connected.

The throttle cam 12 is connected to an accelerator pedal (not shown) through a predetermined link device to rotate according to the pedaling force of the accelerator pedal, and the throttle valve 10 is rotated by the rotation of the throttle cam 12. Done.

A stop member 18 interlocked with the throttle cam 12 is provided at a lower end of the throttle cam 12, and both ends of the throttle cam 12 are stopped between the stop member 18 and the throttle body 2, respectively. The return spring 16 which is caught by the member 18 and the throttle body 2 is provided.

The return spring 16 provides a restoring force to the stop member 18 interlocked with the throttle cam 12, and the stop spring 18 and the throttle cam 12 are rotated by the return spring 16. Will be restored to its original state.

A return spring 16 is connected and fixed to one end of the stop member 18, and a first stopper 20 extending downwardly from the stop member 18 is formed at the other end of the stop member 18, and the first stopper 20 The second stopper 22 bent at right angles to the first stopper 20 is formed on one side of the first stopper 20.

The first stopper 20 of the stop member 18 is caught by the flange 6 protruding on one side of the throttle body 2, and the second stopper 22 of the stop member 18 is the stop member. When the 18 is completely rotated like the throttle cam 12 is caught by the flange 8 protruding to the other side of the throttle body (2).

In particular, the suction air that is sucked into the guide tube 4 formed in the throttle body 2 and supplied to the combustion chamber of the engine is driven by the throttle cam 12 connected to the throttle valve 10 according to the pedal force of the accelerator pedal. To control the amount of air supplied to the

When the driver steps on the accelerator pedal, the throttle valve of the vehicle throttle body made as described above rotates the throttle cam 12 of the throttle body 2 by a link member connected to the accelerator pedal.

Then, as the rotary shaft 14 is rotated by the rotation of the throttle cam 12, the throttle valve 10 connected to the rotary shaft 14 is rotated to open the guide tube 4 of the throttle body 2, so that air Air through the cleaner is introduced into the combustion chamber of the engine through the throttle body (2).

At this time, when the driver fully presses the accelerator pedal to accelerate, the throttle cam 12 is completely rotated to completely open the throttle valve 10, and the throttle cam 12 has a stop member 18 at its lower end. Since the second stopper 22 formed at the hook is caught by the flange 8 of the throttle body 2, the rotation of the throttle cam 12 and the throttle valve 10 is stopped.

When the driver releases the foot from the accelerator pedal when the vehicle is decelerated or stopped, the throttle cam 12 connected with the accelerator pedal is returned to its original state by the return spring 16 and the first stop member 18 is stopped. The stopper 20 is stopped by being caught by the flange 6 of the throttle body 2, and the rotary shaft 14 and the throttle valve 10 are interlocked with the throttle cam 12 due to the return of the throttle cam 12. The throttle valve 10 closes the guide tube 4 of the throttle body 2.

However, the throttle body of the conventional vehicle made as described above causes the throttle cam to rotate and open the throttle valve according to the driver's stepping force on the accelerator pedal, so that air flows into the engine combustion chamber, which is dependent on the driver's stepping on the accelerator pedal. However, the throttle cam is rotated so that the novice driver of the manual transmission vehicle does not easily adjust the clearance between the clutch pedal and the accelerator pedal when starting again after the vehicle stops, and the vehicle is turned off by stepping on the accelerator pedal late. There was a problem that caused traffic congestion.

The present invention has been devised to solve the problems of the prior art as described above, the driver throttle cam according to the response when the operation of the accelerator pedal is good, the opening and closing of the throttle valve is quickly made to improve the driver's riding comfort, It is an object of the present invention to provide a throttle cam structure of a throttle body for an automobile to improve the running performance of a vehicle.

Technical configuration of the present invention for achieving the above object is provided in the throttle body of the vehicle, provided with a linking device that is rotated in accordance with the pedaling force of the accelerator pedal on one side of the throttle body, the one end of the linking device and the accelerator pedal Is connected to a predetermined link device, the other end is provided with a first link rotatably hinged on one side of the throttle body, the second side of the lower end of the first link is connected and interlocked with one end, The other end of the second link is connected to one end of the throttle cam provided at the lower end thereof, and the throttle cam is connected to the rotation axis of the throttle body at its center portion, and the other end is interposed between the throttle cam and the throttle body and One end of the return spring providing restoring force to the first link is connected and fixed, and the first link and the throttle cam are opened and closed when the throttle valve is opened and closed. Characterized in that one so that the locking flange of the throttle body.

In addition, the lower one side of the first link is characterized in that the stopper vertically projected downward so as to be engaged with the flange of the throttle body.

The throttle body in which the first link is rotatably hinged is provided with a return spring for increasing the restoring force of the rotated first link.

Both ends of the second link are ball-joint and coupled to the connection portion between the first link and the throttle cam.

1 is a front view showing a throttle body of a conventional vehicle

FIG. 2 is a side view of the throttle body of the conventional vehicle as viewed from the direction "A" of FIG.

3 is a perspective view showing a linkage of the throttle cam according to the present invention

Figure 4 is a plan view showing a linkage of the throttle cam according to the present invention

5 is a state diagram showing a linkage of the throttle cam according to the present invention in a plan view, showing a state in which the throttle valve is open.

Explanation of symbols on the main parts of the drawings

2: throttle body 4: guide

6, 8: flange 10: throttle valve

12: throttle cam 14: rotation axis

16: return spring 18: stop member

20: first stopper 22: second stopper

40: linkage 50: first link

52: connector 54: stopper

56: return spring 60: second link

62,64: Ball Joint 70: Throttle Cam

72: connecting portion 74: stopper

76: insertion hole 78: return spring

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view showing a linkage of the throttle cam according to the present invention, Figure 4 is a plan view showing a state in which the throttle valve is closed by the linkage of the throttle cam according to the present invention, Figure 5 As a state diagram showing the linkage of the throttle cam according to the present invention in a plan view, it shows a state in which the throttle valve is opened.

As shown, in the throttle body 2 of the vehicle, the upper end of the throttle body 2 is provided with a link device 40 that rotates in accordance with the pedaling force of the accelerator pedal.

The link device 40 is formed at one end thereof with a connector 52 connected via an accelerator pedal and a predetermined link device, and the other end of the link device 40 is rotatably hinged to one side of the throttle body 2. ) Is provided.

A stopper 54 vertically protruding downward is formed on one side of the lower end of the first link 50 so as to be engaged with the flange 6 of the throttle body 2.

In addition, a second link 60 whose one end is rotatably hinged is provided at a lower center portion of the first link 50, and the other end of the second link 60 is provided at a lower end of the throttle cam 70. Is rotatably hinged to one end.

The second link 60 is rotatably coupled by ball joints 62 and 64 to the first link 50 and the throttle cam 70 connected at both ends thereof.

The throttle cam 70 is connected to the rotation shaft 14 of the throttle body 2 and the center thereof is interlocked with the throttle valve 10, and the other end is interposed between the throttle cam 70 and the throttle body 2. One end of the return spring 78 providing restoring force to the throttle cam 70 and the first link 50 is connected and fixed.

One side of the throttle cam 70 has an extended connection portion 72 and a stopper 74 formed at an angle of about 180 degrees, and one end of the second link 60 is rotatably connected to the connection portion 72. 64, a through hole 76 is formed in the stopper 74 at the other end, and one end of the return spring 78 is inserted into and fixed to the insertion hole 76.

The first link 50 and the throttle cam 70 are respectively caught by the flange 6 of the throttle body 2 when the throttle valve 10 is opened and closed, and the flange 6 of the throttle body 2 is fixed. The stopper 54 of the first link 50 rotated when the throttle valve 10 is fully opened is locked to control the rotation of the throttle valve 10, and the throttle when the throttle valve 10 is completely closed. As the cam 70 is restored to its original state, the stopper 74 of the throttle cam 70 is caught on one side of the flange 6 so that the throttle valve 10 completely blocks the conduit of the throttle body 2.

In addition, the throttle body 2 rotatably hinged to the first link 50 is provided with a return spring 56 for increasing the restoring force on the rotated first link 50.

The throttle cam structure of the vehicle throttle body according to the present invention configured as described above, when the driver steps on the accelerator pedal, the connector 52 of the first link 50 provided on the top of the throttle body 2 is predetermined to the accelerator pedal It is connected through the linkage of the motor, and it rotates as much as the pedal power of the accelerator pedal.

Then, the second link 60 which is ball joint 62 at the lower end of the first link 50 is pulled while being rotated by the rotation of the first link 50, the other end of the second link 60 The throttle cam 70, which is rotatably ball-joined 64 at one end of the connecting portion 72, is pulled by the second link 60 while being rotated with the second link 60 and the first link 50. It is rotated in the direction of rotation.

At this time, as shown in the accompanying drawings, the throttle cam 70 has a stopper 54 from the hinge portion 50a of the first link 50 with a distance from the rotation axis 14 of the central portion thereof to the connection portion 72. The throttle cam 70 is rotated by the first link 50 which is remarkably shorter than the distance to the accelerator link, and the displacement is the same as that of the first link 50 and the throttle cam 70. However, the rotated rotation angle of the throttle cam 70 is larger than the first link 50 so that the throttle cam 70 rotates more than the first link 50.

Thus, the throttle valve 10 is connected to the throttle cam 70 and the rotating shaft 14, so that the throttle valve 10 is the guide tube of the throttle body 2 by the amount of rotation of the throttle cam 70 ( 4) is opened.

On the other hand, when the driver presses the accelerator pedal a predetermined amount more to accelerate, the first link 50 is rotated completely according to the pedaling force so that the stopper 54 protruding from the lower end of the first link 50 is The flange 6 of the throttle body 2 is caught.

In this case, one end of the second link 60 connected to the first link 50 is rotated in the same manner as the first link 50, and the other end of the second link 60 is connected to the throttle cam 70. The throttle cam 70 is completely rotated while being rotated with the 72, and the throttle valve 10 is in a state in which the throttle body 2 is completely opened by the throttle cam 70.

Subsequently, when the driver releases the foot from the accelerator pedal when the vehicle is decelerated or stopped, the first link 50 is reversely rotated by the return spring 56 provided in the hinge part 50a and restored to its original state. At the time of reverse rotation of the first link 50, one end of the second link 60, which is ball jointed at the lower end side of the first link 50, is rotated in the same manner as the first link 50. In addition, the throttle cam 70 having the other end of the second link 60 ball-joined 64 is also reversely rotated by the return spring 78 provided at the lower end thereof to restore the original state.

At this time, one side of the stopper 74 protruding on the opposite side of the connecting portion 72 of the throttle cam 70 is caught by the flange 6 of the throttle body 2 so that the first link 50 and the second link ( 60), the rotation of the throttle cam 70 is stopped.

As described above, the throttle cam structure of the automotive throttle body of the present invention is provided with a link device that is interlocked with the throttle cam at the top of the car throttle body, so that the throttle cam according to the driver's operation when the accelerator pedal is operated It is useful to improve the driver's riding comfort and to improve the running performance of the vehicle since the opening and closing of the throttle valve is performed quickly by improving the responsiveness.

Claims (4)

In the throttle body 2 of an automobile, One side of the throttle body (2) is provided with a linking device 40 that is rotated according to the pedaling force of the accelerator pedal, the linking device 40, one end of which is connected to the accelerator pedal and a predetermined linking device, the other end of the throttle A first link 50 rotatably hinged to one side of the body 2 is provided, and one end of the first link 50 is provided with a second link 60 connected to one end thereof. The other end of the second link 60 is connected to one end of the throttle cam 70 provided at the lower end thereof, and the throttle cam 70 is connected to the rotation shaft 14 of the throttle body 2 at the center thereof. The other end is connected between one end of a return spring 78 which is interposed between the throttle cam 70 and the throttle body 2 to provide a restoring force to the throttle cam 70 and the first link 50. The first link 50 and the throttle cam 70 are caught by the flange 6 of the throttle body 2 when the throttle valve 10 is opened or closed. A car throttle cam structure for the throttle body, characterized in that to. The method of claim 1, Throttle cam structure of the throttle body for a vehicle, characterized in that the stopper 54 is vertically projected downward so as to be engaged with the flange (6) of the throttle body (2) on the lower side of the first link (50). The method of claim 1, The throttle body (2) in which the first link (50) is rotatably hinged is provided with a return spring (56) for increasing the restoring force of the rotated first link (50). Throttle Cam Structure. The method of claim 1, Both ends of the second link 60 are ball joints (62, 64) coupled to the connecting portion 72 of the first link 50 and the throttle cam 70, the throttle cam structure of the vehicle throttle body .