CN210714872U

CN210714872U - Piston for swirl chamber internal combustion engine

Info

Publication number: CN210714872U
Application number: CN201921657363.7U
Authority: CN
Inventors: 张成义; 于德军
Original assignee: Shandong Carter Power Technology Co Ltd
Current assignee: Shandong Carter Power Technology Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-09
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a piston for swirl chamber internal-combustion engine, a serial communication port, including piston, guiding gutter and main combustion chamber, the main combustion chamber bottom surface is provided with the piston, piston top surface is provided with the guiding gutter. The utility model provides a pair of a piston for swirl chamber internal-combustion engine sets up the guiding gutter into wedge structure, and the combustion chamber guiding gutter distributes in both sides, and the air current is expanding whole combustion chamber from both sides to strengthen the mixture and the burning of combustion chamber, the fuel consumption rate is lower.

Description

Piston for swirl chamber internal combustion engine

Technical Field

The utility model relates to a K4105 vortex chamber formula internal-combustion engine combustion chamber piston field relates to a piston for vortex chamber internal-combustion engine particularly.

Background

At present, the cylinder expansion of a domestic 495 series diesel engine is changed into direct injection, the direct injection is expanded to 4105 cylinder diameter, the direct injection is widely applied to the power generation and fixed power markets due to high performance-price ratio, the original 495 vortex chamber type diesel engine is still favored by customers due to soft work and relatively low cost, and therefore, in order to expand the power of the 495 vortex chamber type combustion chamber, the 4105 vortex chamber type piston is researched and developed under the condition that a cylinder cover combustion chamber is not changed.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston for swirl chamber internal-combustion engine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the piston for the swirl chamber internal combustion engine is characterized by comprising a piston, a flow guide groove and a main combustion chamber, wherein the bottom surface of the main combustion chamber is provided with the piston, and the top surface of the piston is provided with the flow guide groove.

Further, the diversion trench structure is a wedge-shaped structure.

Furthermore, the outer edge of the guide groove is arranged on a concentric circle with the center of the piston as the center of the circle, a transition arc wall with the radius of 48.5mm and the chord length of 23mm is arranged at the top end of the outer edge of the guide groove, and the top end of the outer edge of the guide groove and the two side joint groove walls of the transition arc wall extend to the intersection of the outer side of the piston to form a 50 degree angle.

Further, the diameter of the top surface of the piston is as follows: 104.27-104.41 mm, and the diameter of the circular arc where the outer edge of the diversion trench is located is 91 mm.

Furthermore, the inner edge of the guide groove is formed by connecting two circular arcs with the radius of 43 mm.

Furthermore, the linear distance from the top end of the inner edge of the diversion trench to the center of the piston is 27mm, and the linear distance from the tail end of the outer edge of the diversion trench to the radius of the piston along the y-axis direction is 31 mm.

Further, the linear distance between the inner edges of the guide grooves and the center of the piston along the x-axis direction is 33 mm.

Furthermore, the depth of the guide groove close to one section of the transition arc is 3.65-3.95 mm.

Furthermore, the outer edge and the inner edge of each flow guide groove are both set to be circular arcs with the radius of 3 mm.

Furthermore, the part of the center of the top surface of the piston, which is surrounded by the inner edge of the flow guide groove, forms a slope with the center and is sunken towards the center by 3 degrees.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model provides a pair of a piston for swirl chamber internal-combustion engine sets up the guiding gutter into wedge structure, and the combustion chamber guiding gutter distributes in both sides, and the air current is expanding whole combustion chamber from both sides to strengthen the mixture and the burning of combustion chamber, the fuel consumption rate is lower.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a piston for a swirl chamber internal combustion engine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

reference numerals:

1. a piston; 2. a diversion trench; 3. a main combustion chamber; 4. a transitional arc wall.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a piston for a swirl chamber internal combustion engine according to an embodiment of the present invention includes a piston 1, a flow guide groove 2, and a main combustion chamber 3, wherein the bottom surface of the main combustion chamber 3 is provided with the piston 1, and the top surface of the piston 1 is provided with the flow guide groove 2.

Through the above technical scheme of the utility model, 2 structures of guiding gutter set up to the wedge structure, 2 outward flange of guiding gutter set up to with 1 center of piston is on the concentric circle of centre of a circle, 2 outward flange tops of guiding gutter are provided with the radius and are 48.5mm, and the chord length is 23 mm's transition

circular arc wall

4, 2 outward flange tops of guiding gutter with 4 both sides of transition circular arc wall link up the cell wall and extend to 1 outside intersection of piston becomes 50, 1 top surface diameter of piston is: 104.27-104.41 mm, the diameter of the circular arc at the 2 outward flange of guiding gutter is 91mm, the 2 inward flanges of guiding gutter are connected through two circular arcs that the radius is 43mm and constitute, 2 inward flanges of guiding gutter top distance piston 1 central linear distance is 27mm, the tail end of 2 outward flanges of guiding gutter arrives along the y axle direction the radial linear distance of piston 1 is 31mm, between 2 inward flanges of guiding gutter in 1 center of piston is 33mm along the x axle direction linear distance, guiding gutter 2 is close to one section degree of depth of transition circular arc 4 is 3.65-3.95 mm, 2 outward flanges of guiding gutter and inward flange all set up to the circular arc that the radius is 3mm, the center of 1 top surface of piston in the part that 2 inward flanges of guiding gutter enclose becomes the slope with the center and is 3 to the central depressed.

When the swirl chamber internal combustion engine is used specifically, the diversion trench 2 is arranged into a wedge-shaped structure by the piston 1 of the swirl chamber internal combustion engine, the diversion trench 2 of the main combustion chamber 3 is distributed on two sides, and the airflow is expanded to the whole main combustion chamber 3 from two sides, so that the mixing and combustion of fuel oil and air in the main combustion chamber 3 are enhanced, and the fuel consumption rate is lower.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The piston for the swirl chamber internal combustion engine is characterized by comprising a piston (1), a flow guide groove (2) and a main combustion chamber (3), wherein the piston (1) is arranged on the bottom surface of the main combustion chamber (3), and the flow guide groove (2) is arranged on the top surface of the piston (1).

2. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the guide groove (2) structure is provided as a wedge-shaped structure.

3. The piston for the swirl chamber internal combustion engine is characterized in that the outer edge of the guide groove (2) is arranged on a concentric circle which is concentric with the center of the piston (1), the top end of the outer edge of the guide groove (2) is provided with a transition arc wall (4) with the radius of 48.5mm and the chord length of 23mm, and the top end of the outer edge of the guide groove (2) and the joint groove wall of two sides of the transition arc wall (4) extend to the outer side of the piston (1) to form a 50-degree intersection.

4. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the diameter of the top face of the piston (1) is: 104.27-104.41 mm, and the diameter of the arc where the outer edge of the diversion trench (2) is located is 91 mm.

5. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the inner edges of the flow channels (2) are formed by two circular arcs with a radius of 43mm which are connected.

6. The piston for a swirl chamber internal combustion engine according to claim 1, characterized in that the straight distance from the top end of the inner edge of the guide groove (2) to the center of the piston (1) is 27mm, and the straight distance from the tail end of the outer edge of the guide groove (2) to the radius of the piston (1) in the y-axis direction is 31 mm.

7. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the linear distance between the inner edges of the channels (2) in the direction of the x axis from the centre of the piston (1) is 33 mm.

8. A piston for a swirl chamber internal combustion engine according to claim 3, characterised in that the depth of the flow guide groove (2) near the transition arc wall (4) is 3.65 to 3.95 mm.

9. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the outer and inner edges of the flow guide groove (2) are each provided as a circular arc with a radius of 3 mm.

10. A piston for a swirl chamber internal combustion engine according to claim 1, characterised in that the part of the top face of the piston (1) which is centered around the inner edge of the flow guide groove (2) is recessed towards the centre with a slope of 3 ° from the centre.