阅读说明：本技术 一种稳流气动执行器 (Steady flow pneumatic actuator ) 是由 关锦汉 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种稳流气动执行器,包括本体,所述本体顶部设有一进气管,其特征在于：所述本体的上方还设有一外壳体,所述外壳体的底部设有一缓冲空腔,所述外壳体的侧壁上方设有一与缓冲空腔连通的外部进气管,所述进气管插设于所述缓冲空腔内；所述进气管包括相互连通的横管及竖管,所述竖管的底部与所述本体的顶面中部相连,所述横管的右侧与所述竖管的顶部相连,所述横管的左侧朝向所述外壳体内壁的左侧设置,所述外部进气管设置于所述外壳体的右侧；所述横管左端为喇叭形开口,所述喇叭形开口的左侧直径大于所述喇叭形开口的右侧直径。本发明提高了执行器运行的稳定性,减小了泄气噪音。(The invention discloses a steady flow pneumatic actuator, which comprises a body, wherein the top of the body is provided with an air inlet pipe, and the steady flow pneumatic actuator is characterized in that: an outer shell is further arranged above the body, a buffer cavity is formed in the bottom of the outer shell, an external air inlet pipe communicated with the buffer cavity is arranged above the side wall of the outer shell, and the air inlet pipe is inserted into the buffer cavity; the air inlet pipe comprises a transverse pipe and a vertical pipe which are mutually communicated, the bottom of the vertical pipe is connected with the middle part of the top surface of the body, the right side of the transverse pipe is connected with the top of the vertical pipe, the left side of the transverse pipe is arranged towards the left side of the inner wall of the outer shell, and the external air inlet pipe is arranged on the right side of the outer shell; violently manage the left end and be tubaeform opening, tubaeform open-ended left side diameter is greater than tubaeform open-ended right side diameter. The invention improves the operation stability of the actuator and reduces the air leakage noise.)

1. The utility model provides a stationary flow pneumatic actuator, includes the body, the body top is equipped with an intake pipe, its characterized in that: an outer shell is further arranged above the body, the outer shell is of a cylindrical hollow structure with an opening at the bottom, a buffer cavity is formed inside the outer shell, an external air inlet pipe is arranged above the side wall of the outer shell and communicated with the buffer cavity, the bottom of the outer shell is hermetically connected with the outer side of the middle of the body, and the air inlet pipe is inserted into the buffer cavity;

the air inlet pipe comprises a transverse pipe and a vertical pipe which are mutually communicated, the bottom of the vertical pipe is connected with the middle part of the top surface of the body, the right side of the transverse pipe is connected with the top of the vertical pipe, the left side of the transverse pipe is arranged towards the left side of the inner wall of the outer shell, and the external air inlet pipe is arranged on the right side of the outer shell;

violently manage the left end and be tubaeform opening, tubaeform open-ended left side diameter is greater than tubaeform open-ended right side diameter, just tubaeform open-ended left side is close to the left side inner wall setting of shell body.

2. The flow-stabilizing pneumatic actuator of claim 1, wherein: the transverse pipe is connected with the vertical pipe through an arc-shaped pipe.

3. The flow-stabilizing pneumatic actuator of claim 1, wherein: the outer edge face of the middle of the body is provided with an annular turned edge, the outer edge face of the bottom of the outer shell is provided with an annular bulge, the inner wall of the annular bulge is provided with an annular groove, and the bottom of the outer shell is coated outside the annular turned edge through the annular groove.

4. The flow-stabilizing pneumatic actuator of claim 1, wherein: the top surface of shell body inner wall is equipped with a downwardly extending's cowl, cowl's both ends with the inner wall of shell body links to each other, cowl sets up in the left side of outside intake pipe, just cowl's bottom set up in the left side below of outside intake pipe.

5. The flow-stabilizing pneumatic actuator of claim 1, wherein: the top of the body is provided with a downward-bent V-shaped concave recess, the middle part of the left side of the V-shaped concave recess is connected with the right side of the bottom of the vertical pipe, and the left side and the right side of the V-shaped concave recess are respectively connected with the top surface of the body through arc-shaped surfaces.

6. The flow-stabilizing pneumatic actuator of claim 1, wherein: the top of outside intake pipe is close to the top setting of buffering cavity, the top of violently managing set up in the left side below of outside intake pipe bottom surface.

Technical Field

The invention relates to an actuator, in particular to a steady flow pneumatic actuator.

Background

The turbocharger is actually an air compressor that increases the intake air amount by compressing air. The engine uses the inertia impulse force of the exhaust gas from the engine to push the turbine in the turbine chamber, the turbine drives the coaxial impeller, the impeller presses the air sent by the air filter pipeline, and the air is pressurized and enters the cylinder. When the rotating speed of the engine is increased, the exhaust gas exhaust speed and the rotating speed of the turbine are also increased synchronously, the impeller compresses more air to enter the air cylinder, the pressure and the density of the air are increased, more fuel can be combusted, and the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine.

In prior art, turbo charger's waste gas reenters the manifold of engine, and wherein manifold valve opens and shuts, can utilize the executor to control, because the disorder of air current when directly entering into the executor like this, can lead to the executor to unstable to valve control, just also can influence the stability of waste gas when gassing, simultaneously, can lead to disappointing process noise big. Therefore, the technical problem is solved by the skilled person in the art.

Disclosure of Invention

The invention aims to provide a steady flow pneumatic actuator, which improves the stability of an engine, reduces the cost and simultaneously reduces the noise of air leakage by using the structure.

In order to achieve the purpose, the invention adopts the technical scheme that: a steady flow pneumatic actuator comprises a body, wherein an air inlet pipe is arranged at the top of the body, an outer shell is further arranged above the body, the outer shell is of a cylindrical hollow structure with an opening at the bottom, a buffer cavity is arranged inside the outer shell, an external air inlet pipe is arranged above the side wall of the outer shell, the external air inlet pipe is communicated with the buffer cavity, the bottom of the outer shell is hermetically connected with the outer side of the middle of the body, and the air inlet pipe is inserted into the buffer cavity;

the air inlet pipe comprises a transverse pipe and a vertical pipe which are mutually communicated, the bottom of the vertical pipe is connected with the middle part of the top surface of the body, the right side of the transverse pipe is connected with the top of the vertical pipe, the left side of the transverse pipe is arranged towards the left side of the inner wall of the outer shell, and the external air inlet pipe is arranged on the right side of the outer shell;

violently manage the left end and be tubaeform opening, tubaeform open-ended left side diameter is greater than tubaeform open-ended right side diameter, just tubaeform open-ended left side is close to the left side inner wall setting of shell body.

In the above technical scheme, the horizontal pipe is connected with the vertical pipe through an arc-shaped pipe.

In the technical scheme, the outer edge surface of the middle part of the body is provided with the annular turned edge, the outer edge surface of the bottom of the outer shell is provided with the annular bulge, the inner wall of the annular bulge is provided with the annular groove, and the bottom of the outer shell is coated outside the annular turned edge through the annular groove.

In the above technical scheme, the top surface of shell body inner wall is equipped with a downwardly extending's cowl, cowl's both ends with the inner wall of shell body links to each other, cowl sets up in the left side of outside intake pipe, just cowl's bottom set up in the left side below of outside intake pipe.

In the technical scheme, the top of the body is provided with a downward-bent V-shaped concave recess, the middle part of the left side of the V-shaped concave recess is connected with the right side of the bottom of the vertical pipe, and the left side and the right side of the V-shaped concave recess are respectively connected with the top surface of the body through arc-shaped surfaces.

In the above technical scheme, the top of the external air inlet pipe is arranged close to the top of the buffer cavity, and the top of the transverse pipe is arranged below the left side of the bottom surface of the external air inlet pipe.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. according to the invention, the outer shell is arranged at the top of the body, so that during air inlet, flocculated airflow can be stabilized through the buffer cavity in the outer shell, and the horn-shaped opening is arranged at the end part of the transverse pipe of the air inlet pipe, so that the gas after being stabilized can smoothly enter the actuator body, so that the stable work of the actuator can be ensured, the opening and closing stability of the manifold valve can be ensured, and the air leakage noise can be reduced;

2. the air inlet of the air inlet pipe is arranged below the side opposite to the external air inlet pipe, so that time and space for stabilizing air flow can be given, the left side of the horn-shaped opening is close to the inner wall of the buffer cavity, and the diameter of the left side of the horn-shaped opening is larger than that of the right side of the horn-shaped opening, so that when air flows leftwards, the air flow can be guided by the outside of the horn-shaped opening, the buffer is further realized, the flow speed is more stable, and the operation stability of an actuator is;

3. according to the invention, the V-shaped concave is arranged at the top of the body, so that when gas flows in the buffer cavity, the range of the buffer cavity can be enlarged, and when the gas flows into the buffer cavity and flows from right to left, the V-shaped concave plays roles in buffering, stabilizing and guiding, further stabilizing the gas flow, ensuring the stability of valve abandoning and reducing the air leakage noise; simultaneously, through cowl's setting for after the gas that enters into the shell body is blockked, can slow down the velocity of flow, simultaneously, make gas downstream, further cushion the air current, guarantee the stability of air current.

Drawings

Fig. 1 is a schematic structural diagram in a first embodiment of the present invention.

Wherein: 1. a body; 2. an air inlet pipe; 3. an outer housing; 4. a buffer cavity; 5. an external air inlet pipe; 6. a transverse tube; 7. a vertical tube; 8. a flared opening; 9. an arc tube; 10. annular crimping; 11. an annular projection; 12. an annular groove; 13. an arc-shaped baffle plate; 14. the V-shaped concave is formed.

Detailed Description

The invention is further described with reference to the following figures and examples: