Structure design of air leakage channel of piston ring

Abstract

According to the piston ring gas leakage channel structure design, on the basis of the patent 201710462115.6, the gas leakage channel structure is further optimized, the contact area between a gas leakage channel and gas is increased, the movement direction of leaked gas is changed, the gas leakage temperature is reduced, and the gas leakage impact force is reduced.

Description

Technical Field

[0001] The invention relates to the field of piston ring leakage channels. Background Art

[0002] Patent 201710462115.6 In the sealing structure of the cylinder and the piston, only the leakage channel 4 is defined, and there is only a linear leakage channel. In the linear leakage channel, the contact area between the gas and the piston ring is small, and the leakage channel has no resistance, resulting in a high leakage temperature and a large leakage impact force. Summary of the invention

[0003] Based on Patent 201710462115.6, the present invention further optimizes the configuration of the leakage channel by optimizing the straight leakage channel into complex leakage channels such as curves and broken lines, increasing the length of the leakage channel, extending the contact time between the leakage and the piston ring, reducing the leakage temperature, and reducing the leakage impact force.

[0004] Further optimize the leakage channel configuration, expand the inside of the leakage channel into a circular, square, polygonal and other configurations, further increase the contact area between the leakage gas and the piston ring, reduce the leakage temperature, and reduce the leakage impact force.

[0005] The leakage channel configuration is further optimized, and a sub-channel is added to the leakage channel to further increase the contact area between the leakage gas and the piston ring. At the same time, the linear motion of the leakage gas is converted into a counter-flow through the sub-channel to generate a counter-flow, thereby further reducing the impact force of the leakage. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a plan view of the air leakage channel. In the figure, the black area is the piston ring solid protrusion baffle in the piston ring leakage channel; the blank area is the leakage channel.

Claims

1. The leakage channel is a non-linear configuration such as wave type, S type, M type, N type, V type, L type, etc.

2. The leakage channel contains circular, square, irregular polygonal and other configurations that increase the leakage channel area.

3. The leakage channel contains a divided airway configuration.

4. The leakage channel configuration can be implemented on the piston ring body, in the body, or under the body.

5. The leakage channel configuration can be implemented on the lower plane of the piston groove.

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