CN111878249A - Piston capable of improving combustion efficiency - Google Patents

Abstract

The invention discloses a piston capable of improving combustion efficiency, and belongs to the field of pistons. The piston capable of improving the combustion efficiency comprises a piston body, wherein the top surface of the piston body is recessed inwards to form an omega-shaped combustion chamber; the bottom surface central point department of omega type combustion chamber be provided with spherical protruding, the bottom surface of omega type combustion chamber remove between spherical protruding part and the medial surface of omega type combustion chamber be provided with the blade that is used for separating into the micromolecule with the macromolecule in compression process and destroys the swirl after the compression is accomplished, this blade has a plurality ofly along combustion chamber circumference equipartition. The invention has simple structure and ingenious design, and the design of the blades ensures that the exhaust gas discharged by the engine is more environment-friendly, efficient and energy-saving, thereby realizing low oil consumption and high power.

Description

A piston that improves combustion efficiency

technical field

The present invention relates to a piston, and more particularly, to a piston capable of improving combustion efficiency.

Background technique

With the development and progress of society, human beings have higher and higher requirements for living environment and air quality, the country's regulations on air quality are becoming more and more strict, and the emission indicators and economic requirements of internal combustion engines are getting higher and higher. The internal combustion engine technology is also constantly developing, and the liter power of the engine is also increasing, which poses a severe test for the emission, reliability, noise requirements and later maintenance of the engine. The piston is an important moving part of the engine, and it is the basic part of the engine. The piston and its combustion chamber directly affect the emission, life, economy and noise level of the engine.

During the compression process of the existing piston, the mixture of fuel and air will rotate around the cylinder axis. Due to the different densities of fuel and air in the mixture, the centrifugal force will separate the fuel and air during the rotation process, which will lead to lack of fuel in the gas. Oxygen cannot be fully burned, which makes the exhaust gas emitted by the engine more serious and highly polluting; in addition, because the top edge of the combustion chamber is the dead corner where the mixed gas is located, the mixed gas cannot be effectively and fully burned, making the exhaust gas emitted by the engine more serious. , high pollution emissions.

SUMMARY OF THE INVENTION

1. The technical problem to be solved by the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies and provide a piston that can improve combustion efficiency. Using the technical solution of the present invention, the structure is simple and the design is ingenious. High fuel consumption.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the invention is:

A piston capable of improving combustion efficiency of the present invention comprises a piston body, an ω-shaped combustion chamber is concavely formed on the top surface of the piston body; and a spherical protrusion is provided at the center of the bottom surface of the ω-shaped combustion chamber , between the bottom surface of the ω-type combustion chamber except for the spherical convex part and the inner side of the ω-type combustion chamber, there are blades for separating macromolecules into small molecules during the compression process and destroying the vortex after the compression is completed, The blades are evenly distributed along the circumference of the combustion chamber.

Further, the outer contour surface of the blade includes an upper plane flush with the top surface of the piston body and an obtuse angle with the inclined plane, and the upper plane passes through the convex first circular arc. The cut surface is connected with the upper end of the inclined surface, and the lower end of the inclined surface is connected with the bottom surface of the ω-shaped combustion chamber through the concave second circular arc cut surface.

Further, the two edges of the outer contour surface of the blade and the two sides of the blade and the two sides of the blade and the ω-shaped combustion chamber are connected by arc transitions.

Further, the bottom surface of the combustion chamber also includes a concave structure with a circular arc cross section, and the cross section of the connecting part between the lower end of the concave structure and the spherical protrusion is an oblique linear section; the The upper end of the concave structure is arranged tangentially to the inner side surface of the combustion chamber; the cross section of the connecting portion between the inner side surface of the combustion chamber and the top surface of the piston body is a convex third circular arc-shaped sectional surface.

Further, the top of the spherical protrusion is a circular platform.

Further, a ring groove for installing a notched piston ring is provided on the outer peripheral surface of the upper end of the piston body, and the ring groove is provided with a groove to prevent the piston ring from facing downward when the piston body is placed horizontally. case limit pins.

Further, the inner peripheral surface of the skirt of the piston body is provided with two piston pin seats arranged radially opposite to each other, and each piston pin seat is provided with a piston pin hole; the piston pin seat is located on the piston pin seat. Reinforcing ribs are arranged between the outer peripheral surfaces on both sides of the center line and the inner peripheral surface of the skirt portion of the piston body.

3. Beneficial effects

Adopting the technical scheme provided by the present invention, compared with the existing known technology, has the following beneficial effects:

(1) A piston of the present invention that can improve combustion efficiency, the bottom surface of the ω-shaped combustion chamber except the spherical convex part and the inner side of the ω-shaped combustion chamber is provided with a spacer for separating macromolecules into Small molecules and vanes that destroy the vortex after the compression are completed. The vanes are evenly distributed along the circumference of the combustion chamber. The structure is simple and the design is ingenious. During the compression process, the vane acts like a stirring vane. The mixed gas will rotate around the cylinder axis to separate the macromolecules into small molecules, so that the fuel and air can be mixed more fully and evenly, and after the compression is completed, the blades play the role of destroying the vortex, which can prevent the mixed gas from forming a poorly reversed airflow. , which can effectively control the risk of oil and gas separation and the balance of the mixture, so that the molecules of the mixture are evenly distributed into each interval separated by multiple blades, and then the igniter is ignited at the spherical surface to make the mixture in the combustion chamber. The gas gets the best and full combustion, which improves the maximum thermal efficiency performance of the engine, effectively reduces harmful carbon monoxide, nitrogen oxide smog, etc., making the engine exhaust gas more environmentally friendly, efficient and energy-saving, so as to achieve low fuel consumption and high power;

(2) A piston of the present invention that can improve combustion efficiency, the outer peripheral surface of the upper end of the piston body is provided with a ring groove for installing a piston ring with a gap, and the ring groove is provided to prevent the piston from appearing when the piston body is placed horizontally. The limit pin when the gap of the ring faces downwards. The design of the limit pin can prevent the piston ring on the horizontally arranged piston body from rotating, thereby preventing the oil located under the piston from mixing into the combustion chamber from the gap of the piston ring and avoiding burning oil. ;

(3) In a piston of the present invention that can improve combustion efficiency, reinforcing ribs are provided between the outer peripheral surface of the piston pin seat on both sides of the piston center line and the inner peripheral surface of the skirt of the piston body, and the design of the reinforcing ribs is strengthened. Piston pin seat structure.

Description of drawings

Fig. 1 is a perspective view of a piston that can improve combustion efficiency according to the present invention;

FIG. 2 is a perspective view of a second perspective view of a piston capable of improving combustion efficiency according to the present invention;

3 is a top view of a piston capable of improving combustion efficiency according to the present invention;

FIG. 4 is a cross-sectional view of a piston along the A-A direction for improving combustion efficiency according to the present invention.

Description of symbols in the schematic diagram: 1. Piston body; 2. ω-shaped combustion chamber; 2-1, spherical protrusion; 2-2, concave structure; 2-3, straight section; 2-4, third arc shape Cut plane; 3, blade; 3-1, upper plane; 3-2, inclined plane; 3-3, first arc cut plane; 3-4, second arc cut plane; 4, ring groove; 5, limit pin; 6. Piston pin seat; 6-1. Piston pin hole; 7. Reinforcing rib.

Detailed ways

In order to further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

Example

1 , 2 , 3 and 4 , a piston capable of improving combustion efficiency in this embodiment includes a piston body 1 , and an ω-type combustion chamber 2 is concavely formed on the top surface of the piston body 1 ; The center position of the bottom surface of the chamber 2 is provided with a spherical protrusion 2-1, and the top of the spherical protrusion 2-1 is a circular platform; The cross section of the connecting portion between the lower end of the recessed structure 2-2 and the spherical protrusion 2-1 is an oblique linear cut surface 2-3; The cross-section of the connecting part between the inner side surface of the ω-type combustion chamber 2 and the top surface of the piston body 1 is a convex third arc-shaped cut surface 2-4; Between the part and the inner side of the ω-shaped combustion chamber 2, there are blades 3 for separating macromolecules into small molecules during the compression process and for destroying the vortex after the compression is completed, and the blades 3 are uniformly distributed along the circumference of the combustion chamber. Simple and ingenious in design, the blade acts like a stirring blade during the compression process. During the compression process, the mixed gas of fuel and air will rotate around the cylinder axis to separate macromolecules into small ones, so that the fuel and air can be mixed more efficiently. In order to be fully uniform, after the compression is completed, the blades play the role of destroying the vortex, which can prevent the mixed gas from forming a poorly reversed airflow, and can effectively control the risk of oil and gas separation and the balance of the mixed gas, so that the mixed gas molecules are evenly distributed. In each section separated by a plurality of blades, the igniter is ignited at the spherical surface, so that the mixture in the combustion chamber can be fully burned, which improves the maximum thermal efficiency performance of the engine and effectively reduces harmful carbon monoxide and nitrogen oxides. smog, etc., making the exhaust gas emitted by the engine more environmentally friendly, efficient and energy-saving, so as to achieve low fuel consumption and high power;

Continuing, in this embodiment, the outer contour surface of the blade 3 includes an upper plane 3-1 that is flush with the top surface of the piston body and an inclined plane 3-2 that is at an obtuse angle with the upper plane 3-1. The upper plane 3- 1 is connected with the upper end of the inclined surface 3-2 through the convex first arc-shaped cut surface 3-3, and the lower end of the inclined surface 3-2 is connected with the bottom surface of the ω-type combustion chamber 2 through the concave second arc-shaped cut surface 3-4 Connected; between the two sides of the outer contour surface of the blade 3 and the two sides of the blade 3 and between the two sides of the blade 3 and the ω-type combustion chamber 2 are arc transitionally connected;

Continuing, the outer peripheral surface of the upper end of the piston body 1 is provided with a ring groove 4 for installing a piston ring with a gap, and the ring groove 4 is provided with a limit to prevent the piston ring's gap facing downward when the piston body 1 is placed horizontally. Pin 5, the design of the limit pin can prevent the piston ring on the horizontally arranged piston body from rotating, thereby preventing the oil located under the piston from being mixed into the combustion chamber from the gap of the piston ring to avoid burning oil;

Continuing, the inner peripheral surface of the skirt of the piston body 1 is provided with two piston pin seats 6 arranged radially opposite to each other, and each piston pin seat 6 is provided with a piston pin hole 6-1; the piston pin seat 6 is located in the center of the piston Reinforcing ribs 7 are provided between the outer peripheral surfaces on both sides of the line and the inner peripheral surface of the skirt of the piston body 1 , and the design of the reinforcing ribs enhances the structural strength of the piston pin seat.

The piston of the invention which can improve the combustion efficiency has the advantages of simple structure and ingenious design, and the design of the blades makes the exhaust gas discharged by the engine more environmentally friendly, efficient and energy-saving, thereby realizing low fuel consumption and high power.

The present invention and its embodiments have been described above schematically, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it, without departing from the purpose of the present invention, any structural modes and embodiments similar to this technical solution are designed without creativity, which shall belong to the protection scope of the present invention. .

Claims (7)

1. A piston capable of improving combustion efficiency comprises a piston body (1), wherein an omega-shaped combustion chamber (2) is formed in the top surface of the piston body (1) in a concave manner; the bottom surface central point department of omega type combustion chamber (2) be provided with globular arch (2-1), its characterized in that: the bottom surface of omega type combustion chamber (2) except that be provided with between the medial surface of part and omega type combustion chamber (2) of spherical arch (2-1) and be used for separating into the micromolecule with the macromolecule in compression process and destroy the blade (3) of swirl after the compression is accomplished, this blade (3) have a plurality ofly along combustion chamber circumference equipartition.

2. The piston capable of improving combustion efficiency according to claim 1, wherein: the outer contour surface of the blade (3) comprises an upper plane (3-1) flush with the top surface of the piston body and an inclined plane (3-2) with an included angle obtuse to the upper plane (3-1), the upper plane (3-1) is connected with the upper end of the inclined plane (3-2) through a raised first arc-shaped tangent plane (3-3), and the lower end of the inclined plane (3-2) is connected with the bottom surface of the omega-shaped combustion chamber (2) through a recessed second arc-shaped tangent plane (3-4).

3. The piston capable of improving combustion efficiency according to claim 2, wherein: and the two edges of the outer contour surface of the blade (3) are in arc transition connection with the two side surfaces of the blade (3) and the two side surfaces of the blade (3) are in arc transition connection with the inside of the omega-shaped combustion chamber (2).

4. The piston capable of improving combustion efficiency according to claim 1, wherein: the bottom surface of the omega-shaped combustion chamber (2) also comprises a concave structure (2-2) with an arc-shaped section, and the section of the connecting part between the lower end of the concave structure (2-2) and the spherical bulge (2-1) is an oblique linear section (2-3); the upper end of the concave structure (2-2) is tangent to the inner side surface of the omega-shaped combustion chamber (2); the section of the connecting part between the inner side surface of the omega-shaped combustion chamber (2) and the top surface of the piston body (1) is a convex third arc-shaped tangent plane (2-4).

5. The piston capable of improving combustion efficiency according to claim 1, wherein: the top of the spherical bulge (2-1) is a circular platform.

6. The piston capable of improving combustion efficiency according to claim 1, wherein: the outer peripheral face of piston body (1) upper end on offer annular (4) that are used for installing the piston ring of taking the breach, annular (4) on be equipped with and be used for preventing that spacing pin (5) of the breach condition down of piston ring appear when piston body (1) level is placed.

7. The piston capable of improving combustion efficiency according to claim 1, wherein: two piston pin bases (6) which are arranged oppositely in the radial direction are arranged on the inner peripheral surface of the skirt portion of the piston body (1), and each piston pin base (6) is provided with a piston pin hole (6-1); and reinforcing ribs (7) are arranged between the outer peripheral surfaces of the piston pin seat (6) positioned at two sides of the central line of the piston and the inner peripheral surface of the skirt part of the piston body (1).

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