阅读说明：本技术 发动机气环及具有其的活塞、发动机 (Engine gas ring, piston with same and engine ) 是由 陈�峰 陈翔宇 于 2020-07-23 设计创作，主要内容包括：本发明属于发动机技术领域,具体涉及一种发动机气环,以及具有其的活塞和发动机,所述的发动机气环包括三个T型气环段,T型气环段包括弧形段体及其内侧向内延伸的支撑段,所述的弧形段体插置在发动机活塞上开设的环槽内,支撑段插置在发动机活塞的径向槽腔内,且在径向槽腔的底部与支撑段之间设有一弹簧,所述弹簧的弹力为驱使弧形段体的外侧面抵靠在发动机缸体的内壁上；本发明通过将传统的一体式气环拆分为三段式,且每个T型气环段均由弹簧提供支撑力使其紧密的贴靠在发动机缸体的内壁上,在经历一段时间的工作产生磨损后仍能保持正圆形的状态,规避了不断磨损产生不规则椭圆形而发生加剧磨损的问题,延长了发动机的使用寿命。(The invention belongs to the technical field of engines, and particularly relates to an engine gas ring, a piston with the engine gas ring and an engine, wherein the engine gas ring comprises three T-shaped gas ring sections, each T-shaped gas ring section comprises an arc-shaped section body and a support section, the inner side of each arc-shaped section body extends inwards, the arc-shaped section bodies are inserted into ring grooves formed in the engine piston, the support sections are inserted into radial groove cavities of the engine piston, a spring is arranged between the bottom of each radial groove cavity and the support sections, and the elastic force of the spring is used for driving the outer side faces of the arc-shaped section bodies to abut against the inner wall of an engine cylinder body; according to the invention, the traditional integrated gas ring is split into three sections, and each T-shaped gas ring section is tightly attached to the inner wall of the engine cylinder body by the supporting force provided by the spring, so that the T-shaped gas ring can still keep a perfect circular state after being worn by working for a period of time, the problem of aggravated wear caused by irregular oval due to continuous wear is avoided, and the service life of the engine is prolonged.)

1. The engine gas ring is applied to an engine piston, and is characterized in that the engine gas ring comprises three T-shaped gas ring sections (10), each T-shaped gas ring section (10) comprises an arc-shaped section body (11) and a support section (12) extending inwards from the inner side of the arc-shaped section body, each arc-shaped section body (11) is inserted into a ring groove formed in the engine piston (20), each support section (12) is inserted into a radial groove cavity (21) of the engine piston (20), a spring (30) is arranged between the bottom of each radial groove cavity (21) and each support section (12), and the elastic force of each spring (30) is used for driving the outer side face of each arc-shaped section body (11) to abut against the inner wall of an engine cylinder body (40).

2. The engine gas ring according to claim 1, characterized in that the three T-shaped gas ring segments (10) are of uniform size.

3. The engine gas ring according to claim 1, characterized in that the distance between the ends of the arc segments (11) of adjacent T-shaped gas ring segments (10) is 0.1 mm.

4. An engine piston having an engine gas ring according to any one of claims 1 to 3.

5. An engine having the engine piston of claim 4.

Technical Field

The invention belongs to the technical field of engines, and particularly relates to an engine gas ring, a piston with the engine gas ring and an engine with the engine gas ring.

Background

The gas ring, also called piston ring, is used to seal the gap between the piston and the cylinder wall, prevent the gas in the cylinder from entering the oil pan, and transfer the heat of the piston head to the cylinder wall and then be taken away by the cooling water or air. The number of the gas rings of the traditional engine is 2-3, the ring openings are opposite to 90-180 degrees, the rings are parallel up and down, and each ring is an independent whole. Traditional engine gas ring, simple structure and the processing production of being convenient for have ripe technique, and it is comparatively convenient to install and use, but because the ring mouth is located outside tension more than great about 90, all have great pressure to ring body and cylinder body, and the outer tension of all the other places is less relatively, makes the cylinder body form anomalous ellipse easily for ring body and cylinder body wear and tear the power decline that warp and cause the engine, the oil consumption increases, the phenomenon of burning machine oil even appears.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an engine gas ring, which solves the problem that the traditional engine gas ring is easy to cause irregular abrasion with a cylinder body and ensures the service life of an engine.

In order to achieve the purpose, the invention adopts the following technical scheme:

the engine gas ring is applied to an engine piston and comprises three T-shaped gas ring sections, each T-shaped gas ring section comprises an arc-shaped section body and a supporting section, the inner side of each arc-shaped section body extends inwards, the arc-shaped section bodies are inserted into ring grooves formed in the engine piston, the supporting sections are inserted into radial groove cavities of the engine piston, a spring is arranged between the bottom of each radial groove cavity and the supporting sections, and the elastic force of the spring drives the outer side faces of the arc-shaped section bodies to abut against the inner wall of an engine cylinder body.

Preferably, the three T-shaped gas ring segments are of uniform size.

Preferably, the distance between the ends of the arc-shaped segments of the adjacent T-shaped gas ring segments is 0.1 mm.

The invention also provides an engine piston with the engine gas ring.

The invention also provides an engine with the engine piston.

Compared with the prior art, the invention has the following technical effects:

according to the engine air ring provided by the invention, the traditional integrated air ring is split into three sections, and each T-shaped air ring section is supported by the spring arranged in the engine piston to enable the T-shaped air ring section to be tightly attached to the inner wall of the engine cylinder body, so that after abrasion is generated in a period of work, the cylinder body and the air ring can still keep a perfect circular state, the problem that the abrasion is aggravated due to the fact that irregular ellipses are generated in continuous abrasion in the prior art is solved, the durability of the engine is improved, and the service life of the engine is prolonged.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic view illustrating an assembly structure of an engine gas ring, a piston and an engine block according to an embodiment of the invention;

FIG. 2 is an exploded view of the engine gas ring and piston of FIG. 1;

FIG. 3 is a schematic diagram of a conventional engine gas ring and piston and cylinder block fit;

FIG. 4 is a schematic illustration of wear of the engine gas ring and piston of FIG. 3 after a period of use;

the reference numbers in the figures illustrate: the engine comprises a 10-T-shaped gas ring section, a 11-arc section body, a 12-supporting section, a 20-engine piston, a 21-radial groove cavity, a 30-spring and a 40-engine cylinder body.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

FIG. 3 is a schematic view of a conventional engine gas ring, an engine piston, and an engine cylinder; the air ring is on the side, not specifically shown in the figures. The engine gas ring has a simple structure, is convenient to process and produce, is a mature technology, is very convenient to install, has the defect of easy abrasion, and is particularly easy to abrade an engine cylinder body 40, and the specific reason is that the external tension at the position of 90 degrees left and right of a ring opening is higher, so that the ring body and the engine cylinder body 40 have higher pressure, the abrasion of the engine cylinder body 40 is accelerated, the engine cylinder body 40 forms an irregular oval shape, the gas ring and the cylinder body are abraded and deformed, the power of the engine is reduced, the oil consumption is increased, and even the problem of oil burning is caused.

Specifically, as shown in fig. 3, the normal assembly is realized, the cylinder and the gas ring are in a standard perfect circle shape, the parameters of the end gap and the back gap at the point B meet the requirements, the engine can work normally, the engine is worn after a period of time, the cylinder and the gas ring are not in a perfect circle shape, as shown in fig. 4, the end gap at the point F is increased, the distance of EG is greater than the distance of FH, an irregular oval shape is formed, and the abrasion of the cylinder is gradually increased.

In order to solve the technical problem, the invention provides an engine gas ring, which is applied to an engine piston, as shown in fig. 1 and 2, the engine gas ring comprises three T-shaped gas ring sections 10, each T-shaped gas ring section 10 comprises an arc-shaped section body 11 and a support section 12 extending inwards from the inner side of the arc-shaped section body 11, the arc-shaped section body 11 is inserted into a ring groove formed in the engine piston 20, the support section 12 is inserted into a radial groove cavity 21 of the engine piston 20, a spring 30 is arranged between the bottom of the radial groove cavity 21 and the support section 12, and the elastic force of the spring 30 is used for driving the outer side surface of the arc-shaped section body 11 to abut against the inner wall of an engine cylinder 40.

In the technical scheme provided by the invention, the supporting sections 12 of the T-shaped gas ring section 10 are respectively provided with the spring 30, so that the outer side surface of the arc-shaped section body 11 can be tightly attached to the inner wall of the engine cylinder body 40, various parameters meet the requirements, and the engine can normally work. Here, the sum of the light leakage should be less than 10 degrees and less than 1 degree for long-term operation (the arc length corresponds to the central angle); after a period of working wear, endplay at three points of IJK will gradually increase, but the "whole air ring" formed by the three T-shaped air ring segments 10 will still keep circular, and each T-shaped air ring segment 10 can still keep close fit with the engine block 40 under the thrust action of the spring 30. Therefore, the abrasion between the air ring and the cylinder body is less than the gradual and intensified abrasion trend of the traditional air ring and the cylinder body, and the service life of the engine is further prolonged.

It should be noted that, in the present invention, three T-shaped gas ring segments 10 form a layer of "gas ring"; the end gaps of 2-3 layers of 'gas rings' arranged at intervals along the length direction of the engine piston 20 are arranged in a staggered state, and the staggered angle is 40-60 degrees.

Further, according to the present invention, for the convenience of manufacturing, the three T-shaped air ring sections 10 are kept in the same size, that is, each T-shaped air ring section 10 has 120 radians, and together enclose to form a complete air ring.

Further, according to the present invention, the distance between the ends of the arc segment bodies 11 of the adjacent T-shaped gas ring segments 10 is 0.1mm, i.e. the initial end gap is 0.1 mm.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.