EXHAUST GAS CHARGER FOR A VEHICLE ENGINE

Abstract

An exhaust gas charger for a vehicle engine which includes an exhaust pipe with narrow openings at both ends thereof and a wide center cavity, an inner pillar at the axis of the pipe, a circular body, a wind skirt, a plurality of tension springs and a plurality of pulling rods, characterized in that the exhaust pipe is formed from the inner pillar having one end being mounted with a top tube and the other end is mounted with a rear tube such that the top tube and the rear tube are engaged with each other and a spring suspension hook is positioned at the engaging area of the two tubes and the circular body is positioned at the interior of the top tube and has a larger size than the opening of the top tube.

Description

BACKGROUND OF THE INVENTION

(a) Technical Field of the Invention

The present invention relates to an exhaust gas charger, and in particular, an exhaust gas charger which improves the torque and power of an engine by controlling the exhaust gas from the engine.

(b) Description of the Prior Art

A vehicle engine generates torque and power which drive a vehicle to move uphill or to smoothly cruise on a flat road. In the course of engine operation, exhaust gas is discharged, and if the discharging of exhaust gas can be delayed, and the pressure of the exhaust gas is recycled, a high torque of the engine is obtained. As for the power of the engine, if the exhaust gas can be fully controlled to discharge, a higher power could be obtained. Thus, the discharging of exhaust gas is to be controlled in order to obtain high torque and power.

As disclosed in prior art, U.S. Pat. No. 1,576,269, the spring within the spring will lost its elasticity at a high temperature and therefore, the device loses the function intended to improve torque and speed. The device is only applicable at low RPM is delaying the discharging of exhaust gas to increase torque. However, at a high speed, it could not sufficiently discharge the exhaust gas.

Accordingly, it is an object of the present invention to provide an exhaust gas charger for a vehicle engine which mitigates the above drawbacks.

SUMMARY OF THE INVENTION

The primary purpose of the present invention is to provide an exhaust gas charger for a vehicle engine comprising an exhaust pipe with narrow openings at both ends thereof and a wide center cavity, an inner pillar at the axis of the pipe, a circular body, a wind skirt, a plurality of tension springs and a plurality of pulling rods, characterized in that the exhaust pipe is formed from the inner pillar having one end being mounted with a top tube and the other end is mounted with a rear tube such that the top tube and the rear tube are engaged with each other and a spring suspension hook is positioned at the engaging area of the two tubes and the circular body is positioned at the interior of the top tube and has a larger size than the opening of the top tube, and the center circular hole of the circular body allows the passage of the inner pillar such that the circular body is allowed to reciprocate upward along the inner pillar, the circular body faces the rear end of the opening of the top tube and the pulling rods are mounted vertically to the circular body at equidistant such that the other end of the pulling rod secured to the circular body is protruded a lateral hole at the rear pipe which corresponds to the frame at the opening of the rear pipe and the windward side of the wind skirt is provided with a wind skirt lateral hole, and a screw nut is used to secure the pulling rods, and one end of the pulling spring is hooked to the surrounding of the wind skirt at an appropriate equidistant position, and the other end of the pulling spring is hooked onto the spring suspension hook, and the frame is mounted with an adjustable screw, wherein the rod end of the screw faces the circular body.

Another object of the present invention is to provide an exhaust gas charger for vehicle engine, wherein at low speed driving, the circular body urges the inner wall of the top tube which is the minimum gap for the exhaust gas such that the discharging of the exhaust is delayed, and the pressure of the exhaust gas is recycled back, thus torque is increased.

The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.

Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of an exhaust gas charger for a vehicle engine in accordance with the present invention.

FIG. 2 is a sectional view of an exhaust gas charger for a vehicle engine in accordance with the present invention.

FIG. 3 is an application view showing the pressure of the charger being smaller than that of the tension spring of the present invention.

FIG. 4 is an application view showing the pressure of the charger being larger than that of the tension spring of the present invention.

FIG. 5 is an application view showing the pressure of the charger together with force of the wind and pressure exceeding that of the tension spring of the present invention.

FIG. 6 is a conventional art, U.S. Pat. No. 1,576,269.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

Referring to FIGS. 1 and 2, there is shown an exhaust gas charger for an engine used in vehicle. The charger comprises an exhaust pipe with narrow openings at both end thereof and a wide center cavity, an inner pillar 4 at the axis of the exhaust pipe, a circular body 12, a wind skirt 7, a plurality of tension springs 8 and a plurality of pulling rods 5. The exhaust pipe has the inner pillar 4 which has one end passing through the center hole 1-1 of a top tube 1, and is then locked using a screw nut 4-1. The other end of the exhaust pipe is mounted with a rear tube 6 having a center hole 6-1 and a screw nut 4-1 is then used to secure the tubes such that the top tube 1 and the rear tube 6 are engaged. A spring suspension hook 3 is provided to the engaging area, and the circular body 12 is formed from a hood body 2 having a sealing plate 2-1 at the bottom thereof and is placed within the top tube 1. The size of the circular body is slightly larger than the opening 1-2 of the top tube. The center circular hole 2-4, 2-5 allows the inner pillar 4 to pass through such that the circular body 12 is slidably moved along the inner pillar 4. The circular body 12 is facing the rear end of the opening 1-2 of the top tube and at the circular body, at equidistant is formed with side holes 2-2, 2-3, and the pulling rod 5 such that the pulling rod 5 being secured to the other end of the circular body 12 is extended out the opening (6-4) frame corresponding to the side hole 6-2 of the rear tube, and the windward side of the wind skirt 7 is provided with side hole 7-1 which is connected using screw nut 5-1. One end of the tension spring 8 is connected to the surrounding of the wind skirt 7 and is positioned at equidistant the spring hook 7-2. The other end of the spring 8 is hooked to a spring suspension ring 3-1 corresponding to the coiled spring suspension ring 3. At an appropriate position of the frame of the opening 6-4, an adjustable screw hole 6-3 is provided for mounting with an adjustable screw 9 having a screw shaft facing the circular body 12.

As shown in FIG. 3, the course of driving at low RPM, discharging of exhaust has 10 and wind force are low which cannot overcome the pulling force of the pulling spring 8. The pulling spring 8 will fully pull upward the wind skirt 7 and the circular body 12 is driven along the inner pillar, urging to the inner wall of the top tube 1, at the gap of minimum exhaust gas discharged such that the engine exhaust gas discharge is delayed, which produces a recycling of exhaust gas. When at low speed, the recycling pressure urges the engine to produce a higher torque.

When speed is gradually increased, as shown in FIG. 4, when the engine RPM increased, the pressure of the exhaust gas is greater than the instantaneous pulling force of the tension spring 8, a circular body 12 is pressed downward due to the discharging force of the engine 10, and via the pulling rod 5, the wind skirt 7 is driven downward which drives the pulling spring 8 downward, gradually opens the circular body 12 to move along the inner pillar 4 to the discharging gap at the inner wall of the top tube 1.

As shown in FIG. 4, at high speed driving, there is a need of great amount of exhaust gas in order to obtain a greater power, at this point of time, the wind force II is sufficient large to pressurize proactively to move the wind skirt 7. This wind force II together with the engine discharging force 10 is largely greater than the pulling force of the pulling spring 8. The wind skirt 7 subjects to the pulling force of the pulling rod 5, will continuously cause the circular body 2 to move backward until the circular body 2 is blocked by the adjusting screw 9, and thus, the largest gap for discharging is opened. When the vehicle is stopped, the adjusting screw 9 is moved nearer to the circular body 2, the circular body 2 is moved backward and the maximum gap for discharging is calibrated.

The present invention improves the torque and power of an engine at different driving condition, by controlling the discharging of exhaust gas. In the present invention, the pulling spring does not come into contact with the temperature of exhaust gas, therefore there is no heat loss.

It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.

Claims

1. An exhaust gas charger for a vehicle engine comprising an exhaust pipe with narrow openings at both ends thereof and a wide center cavity, an inner pillar at the axis of the pipe, a circular body, a wind skirt, a plurality of tension springs and a plurality of pulling rods, characterized in that the exhaust pipe is formed from the inner pillar having one end being mounted with a top tube and the other end is mounted with a rear tube such that the top tube and the rear tube are engaged with each other and a spring suspension hook is positioned at the engaging area of the two tubes and the circular body is positioned at the interior of the top tube and has a larger size than the opening of the top tube, and the center circular hole of the circular body allows the passage of the inner pillar such that the circular body is allowed to reciprocate upward along the inner pillar, the circular body faces the rear end of the opening of the top tube and the pulling rods are mounted vertically to the circular body at equidistant such that the other end of the pulling rod secured to the circular body is protruded a lateral hole at the rear pipe which corresponds to the frame at the opening of the rear pipe and the windward side of the wind skirt is provided with a wind skirt lateral hole, and a screw nut is used to secure the pulling rods, and one end of the pulling spring is hooked to the surrounding of the wind skirt at an appropriate equidistant position, and the other end of the pulling spring is hooked onto the spring suspension hook, and the frame is mounted with an adjustable screw, wherein the rod end of the screw faces the circular body.