Compact electronic injection throttle valve body

Abstract

The utility model relates to a compact electronic injection throttle valve body which is characterized in that the compact electronic injection throttle valve body comprises a body with a lower air inlet and an upper air outlet, the lower air inlet and the upper air outlet are communicated to form a cylindrical channel, an oil injection pipeline is arranged on the side portion of the body, and the axis of the oil injection pipeline and the axis of the cylindrical channel intersect outside the body. An outlet of the oil injection pipeline is formed in the position, close to the upper air outlet, of the wall face of the cylindrical channel, an inlet of the oil injection pipeline is sequentially connected with an oil inlet control valve and an oil inlet pipeline which are coaxial with the oil injection pipeline, the first end of the oil inlet control valve abuts against the inlet of the oil injection pipeline, and the second end of the oil inlet control valve abuts against the outlet of the oil inlet pipeline. Lugs perpendicular to the axis of the oil inlet pipeline are arranged on the two sides of the oil inlet pipeline. The compact electronic injection throttle valve body is reasonable in design, and mixed injection of oil and gas is facilitated.

Description

Technical field:

[0002] The utility model relates to a compact electric injection throttle valve body. Background technology:

[0004] The throttle is one of the most important parts of the modern electronic fuel injection engine system, which is the breathing system of the engine. It is a valve that controls the air entering and exiting the engine. When the outside gas enters the engine, the gas will mix with gasoline to produce a combustible mixed gas. One end of the throttle is connected to the air filter, and the other end is connected to the main body of the automobile engine. When the combustible mixed gas is produced, it enters the engine through the delivery pipeline, thereby triggering the engine's power system; but the existing throttle still has some shortcomings (such as China's patented electronic fuel injection throttle valve body, a lower-mounted valve body and a throttle valve body assembly - CN219492413U). The fuel injection pipeline of the patent is bent, and it needs to be turned before it can be mixed with air during fuel injection. The speed and position of the fuel injection are not easy to control, which is not conducive to the full mixing and injection of oil and gas; and the patent does not set an air bypass, which is not conducive to working under the condition of engine idling. Summary of the invention:

[0006] In view of the above problems, the purpose of the utility model is to provide a compact electronic fuel injection throttle valve body, which has a reasonable design and is conducive to the mixed injection of oil and gas.

[0007] The utility model is implemented by the following scheme:

[0008] The utility model compact electronic fuel injection throttle valve body is characterized in that it comprises a body with a lower air inlet and an upper air outlet, the lower air inlet and the upper air outlet are connected to form a cylindrical channel, an oil injection pipeline is arranged on the side of the body, the axis of the oil injection pipeline intersects with the axis of the cylindrical channel outside the body, the outlet of the oil injection pipeline is arranged on the wall of the cylindrical channel and close to the upper air outlet, the inlet of the oil injection pipeline is connected with the oil inlet control valve and the oil inlet pipeline coaxial therewith in sequence, the first One end is connected with the inlet of the oil injection pipe, and the second end of the oil inlet control valve is connected with the outlet of the oil inlet pipe. Lugs perpendicular to the axis of the oil inlet pipe are provided on both sides of the oil inlet pipe, a boss is provided on the side of the body, a concave arc is provided on the boss for supporting the outer peripheral wall of the oil inlet pipe, a through hole is provided on the lug, and threaded holes corresponding to the through holes are provided on both sides of the concave arc on the boss, bolts screwed to the threaded holes are passed through the through holes, and the side surfaces of the lug are pressed against the end surface of the boss away from the upper air outlet.

[0009] Preferably, an air intake bypass duct is provided on the other side of the above-mentioned main body, and the air intake bypass duct includes a first branch pipe and a second branch pipe intersecting at one end, the inlet of the first branch pipe is arranged on the wall of the cylindrical channel and close to the lower air inlet, and the outlet of the second branch pipe is arranged on the wall of the cylindrical channel and close to the upper air outlet, and a valve stem driven by a motor to control the extension and retraction is provided in the pipe at the intersection of the first branch pipe and the second branch pipe, so as to control the air flow in the air intake bypass duct.

[0010] Preferably, the axis of the oil injection pipe forms an angle of 30 degrees with the axis of the cylindrical channel.

[0011] Preferably, a throttle valve plate is rotatably hinged in the cylindrical channel of the above-mentioned main body, and both ends of the rotating shaft of the throttle valve plate pass through the main body. The axis of the rotating shaft is perpendicular to the axis of the cylindrical channel, one end of the rotating shaft is connected to the rotating drive wheel, and the other end of the rotating shaft is connected to the position sensor.

[0012] Preferably, a convex tube is provided on the main body, and a coil spring is sleeved on the outer circumference of the convex tube. The head end of the coil spring is fixedly hung on the main body, and the tail end of the coil spring is fixed on the convex part of the rotating driving wheel.

[0013] Preferably, a boss is provided on the above-mentioned main body, an adjustable bolt is threadedly connected to the boss, the free end of the adjustable bolt is used to limit the initial opening position of the throttle plate, a guide plate is fixedly mounted on the main body, a guide hole is provided on the guide plate, and a pulling rope passes through the guide hole and is connected to the rotating drive wheel.

[0014] Preferably, the rotating driving wheel disc has a guide groove for limiting the pulling rope.

[0015] Preferably, the fuel injection pipe, boss, column and intake bypass pipe are integrally cast with the main body.

[0016] The working principle of the compact electronic fuel injection throttle valve body of the present invention is that the axis line of the fuel injection pipeline of the present invention intersects with the axis line of the cylindrical channel outside the body, and the fuel injection pipeline, the fuel inlet control valve and the fuel inlet pipeline are coaxial. Therefore, when the structure is installed on the engine cylinder, the intersection of the axis line of the fuel injection pipeline and the axis line of the cylindrical channel can be located in the combustion chamber of the engine, so that no bending process will occur during fuel injection, which is beneficial to the control of the fuel injection speed and position, so that the atomization effect between gasoline and air is better and the combustion is more complete; in addition, the above-mentioned arrangement of the various components of the electronic fuel injection throttle valve body of the present invention is beneficial to the reduction and compact structure, which is convenient for application in generator equipment with limited space. Description of the drawings:

[0018] The utility model is further described below in conjunction with the accompanying drawings;

[0019] Figure 1 , 2 3 is a stereogram of the utility model from two viewing angles;

[0020] Figure 4 It is a three-dimensional diagram of the main body of the utility model;

[0021] Figure 5 yes Figure 3 Exploded diagram. Specific implementation method:

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The compact electronic fuel injection throttle valve body of the utility model comprises a body 3 with a lower air inlet 1 and an upper air outlet 2, the lower air inlet 1 and the upper air outlet 2 are connected to form a cylindrical channel 4, an oil injection pipe 5 is arranged on the side of the body, the axis line of the oil injection pipe 5 intersects with the axis line of the cylindrical channel 4 outside the body, and when the structure of the utility model is installed on the engine cylinder, the intersection of the axis line of the oil injection pipe and the axis line of the cylindrical channel is located in the combustion chamber of the engine.

[0025] The axis of the above-mentioned fuel injection pipeline forms an angle of 25-40 degrees with the axis of the cylindrical channel, preferably an angle of 30 degrees. The outlet 501 of the fuel injection pipeline 5 is arranged on the wall of the cylindrical channel and close to the upper air outlet. The inlet of the fuel injection pipeline is connected in sequence with the coaxial fuel inlet control valve 6 and the fuel inlet pipeline 7. The fuel injection pipeline, the fuel inlet control valve and the fuel inlet pipeline are coaxial, so that the oil circuit does not need to bend during fuel injection, thereby avoiding obstruction of the fuel injection speed.

[0026] The first end of the oil inlet control valve (electrically controlled valve) abuts against the inlet of the oil injection pipe, and the second end of the oil inlet control valve abuts against the outlet of the oil inlet pipe. An oil seal is provided between the oil injection pipe, the oil inlet control valve and the oil inlet pipe to avoid oil leakage.

[0027] Lugs 701 perpendicular to the axis of the oil inlet pipeline are provided on both sides of the oil inlet pipeline 7, a boss 301 is provided on the side of the main body 3, a concave arc 302 for supporting the outer peripheral wall of the oil inlet pipeline is provided on the lug, a through hole is provided on the lug, threaded holes corresponding to the through hole are provided on both sides of the concave arc on the boss, bolts 8 screwed to the threaded holes are inserted into the through hole, and the side surface of the lug is pressed against the end face of the boss away from the upper air outlet.

[0028] In order to facilitate the operation under idling conditions, an intake bypass pipe 9 is provided on the other side of the main body, and the intake bypass pipe includes a first branch pipe 901 and a second branch pipe 902 intersecting at one end, an inlet 903 of the first branch pipe is arranged on the wall of the cylindrical channel and close to the lower air inlet, and an outlet 904 of the second branch pipe is arranged on the wall of the cylindrical channel and close to the upper air outlet. A valve stem 11 driven by a motor 10 to control the extension and contraction is provided in the pipe at the intersection of the first branch pipe and the second branch pipe, so as to control the air flow in the intake bypass pipe. The motor 10 drives the control to extend and contract. The retracted valve stem 11 can be an electric push rod, that is, after the motor is energized, the valve stem 11 is driven to extend or retract, thereby interrupting or connecting the first branch pipe and the second branch pipe, realizing the opening, closing and opening size of the bypass, and meeting the operation of the generator at idle speed; the air intake bypass pipe 9 and the main body are cast as one piece, so there is no need to set up a bypass outside the main body, which simplifies and compacts the overall structure, and the inlet end of the air intake bypass pipe 9 (that is, the inlet 903 of the first branch pipe) is close to the lower air inlet 1 of the main body, and the air in the air intake bypass pipe 9 can also be filtered by the air filter installed on the lower air inlet 1.

[0029] Therefore, compared with the form in which the air bypass is separated from the main body, the design of the air intake bypass duct 9 of the utility model makes the overall structure simpler and more compact, the installation is simpler and occupies less space, and the air can be filtered using the air filter installed on the lower air inlet 1.

[0030] A throttle valve plate 12 is rotatably hinged in the cylindrical channel of the above-mentioned main body, and both ends of the rotating shaft of the throttle valve plate pass through the main body 3. The axis of the rotating shaft is perpendicular to the axis of the cylindrical channel. The throttle valve plate 12 can rotate around the rotating shaft. One end of the rotating shaft is connected to a rotating drive wheel 13, and the other end of the rotating shaft is connected to a position sensor 14. The position sensor 14 can detect the relative position of the throttle valve plate 12 when it rotates. This is a prior art and will not be described here.

[0031] The above-mentioned main body is provided with a convex tube 303, and a coil spring 15 is sleeved on the outer periphery of the convex tube. The head end of the coil spring is fixedly hung on the main body, and the tail end of the coil spring is fixed on the convex part of the rotating driving wheel disc 13. The main body is provided with a convex column 304, and an adjustable bolt 16 is threadedly connected to the convex column. The free end of the adjustable bolt is used to limit the rotation stroke of the rotating driving wheel disc. A guide plate 17 is fixedly installed on the main body, and a guide hole 1701 is provided on the guide plate. A pulling rope passes through the guide hole and is connected to the rotating driving wheel disc 13; the above-mentioned rotating driving wheel disc has a guide groove 1301 for limiting the pulling rope.

[0032] During operation, the free end of the pulling rope (which can be a steel wire rope) is connected to the accelerator pedal of a car or the throttle handle of a motorcycle. When the pulling rope is pulled, the rotating driving wheel 13 is driven to rotate, so that the throttle valve plate 12 rotates and the air flux of the cylindrical channel is increased. The position of the free end of the adjustable bolt 16 can be adjusted to control the maximum rotation range of the throttle valve plate 12 and the rotating driving wheel 13.

[0033] For the purpose of reasonable design, the fuel injection pipeline, boss, column and intake bypass pipeline are integrally cast with the main body.

[0034] The working principle of the compact electronic fuel injection throttle valve body of the utility model is that the axis line of the fuel injection pipeline of the utility model intersects with the axis line of the cylindrical channel outside the body, and the fuel injection pipeline, the fuel inlet control valve and the fuel inlet pipeline are coaxial, so that when the structure is installed on the engine cylinder, the intersection of the axis line of the fuel injection pipeline and the axis line of the cylindrical channel can be located in the combustion chamber of the engine, so that no bending process will occur during fuel injection, which is beneficial to the control of the fuel injection speed and position, so that the atomization effect between gasoline and air is better and the combustion is more complete.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A compact electronic fuel injection throttle valve body, characterized in that: The cam is an airtight container, the outlet of the cam is disposed on the inner wall of the cam, and the outlet of the cam is connected to the outlet of the cam by a threaded hole.

2. The compact electronic fuel injection throttle valve body according to claim 1, characterized in that: An air intake bypass duct is provided on the other side of the main body, and the air intake bypass duct includes a first branch pipe and a second branch pipe intersecting at one end, the inlet of the first branch pipe is arranged on the wall of the cylindrical channel and close to the lower air inlet, and the outlet of the second branch pipe is arranged on the wall of the cylindrical channel and close to the upper air outlet. A valve stem that is controlled to be retracted and extended by a motor is provided in the pipe at the intersection of the first branch pipe and the second branch pipe, so as to control the air flow in the air intake bypass duct.

3. The compact electronic fuel injection throttle valve body according to claim 1, characterized in that: The axis center line of the oil injection pipeline forms an angle of 30 degrees with the axis center line of the cylindrical channel.

4. The compact electronic fuel injection throttle valve body according to claim 1, characterized in that: A throttle valve plate is rotatably hinged in the cylindrical channel of the body, and both ends of the rotating shaft of the throttle valve plate pass through the body. The axis of the rotating shaft is perpendicular to the axis of the cylindrical channel. One end of the rotating shaft is connected to the rotating drive wheel, and the other end of the rotating shaft is connected to the position sensor.

5. The compact electronic fuel injection throttle valve body according to claim 4, characterized in that: The main body is provided with a convex tube, the outer periphery of the convex tube is sleeved with a coil spring, the head end of the coil spring is fixedly hung on the main body, and the tail end of the coil spring is fixed on the convex part of the rotating driving wheel disc.

6. The compact electronic fuel injection throttle valve body according to claim 5, characterized in that: The main body is provided with a boss, and an adjustable bolt is threadedly connected to the boss. The free end of the adjustable bolt is used to limit the initial opening position of the throttle plate. A guide plate is fixedly installed on the main body, and a guide hole is provided on the guide plate. A pulling rope passes through the guide hole and is connected to the rotating drive wheel.

7. The compact electronic fuel injection throttle valve body according to claim 6, characterized in that: The rotating driving wheel disc is provided with a guide groove for limiting the pulling rope.

8. The compact electronic fuel injection throttle valve body according to claim 6 or 7, characterized in that: The oil injection pipeline, the boss, the boss and the air intake bypass pipeline are integrally cast with the body.

Images