Opposed type free piston engine

A piston engine, opposed technology, used in free piston engines, engine components, machines/engines, etc., can solve problems such as the inability to achieve air spring and piston rod compensation, the inability to change the relative position of the air spring, and the poor lubrication effect.

Inactive Publication Date: 2021-05-18
孙凯强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the return device is an air spring, but the position of the air spring is fixed, the relative position of the air spring cannot be changed, and the relative position of the air spring and the piston rod cannot be compensated.
During the reciprocating movement of the piston body in the combustion cylinder, the piston body and the inner wall of the combustion cylinder are lubricated by the lubricating oil attached to the surface, and the lubrication effect is poor

Method used

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  • Opposed type free piston engine
  • Opposed type free piston engine
  • Opposed type free piston engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]The opposed free-piston engine of the present invention comprises a combustion cylinder 1, an injection port 102 is arranged in the middle of the combustion cylinder 1, an air inlet 101 and an air outlet 103 are respectively arranged on both sides of the injection port 102, and the combustion cylinder 1 is symmetrical A piston body 2 is provided, the outer wall of the piston body 2 is provided with a lubricating mechanism 3 for storing lubricant, the outer side of the piston body 2 is connected with a piston rod 6, and the other end of the piston rod 6 runs through the side wall of the combustion cylinder 1 and is connected with a translation The plate 601 and the piston rod 6 are provided with an excitation coil 701 located between the translation plate 601 and the combustion cylinder 1. The periphery of the excitation coil 701 is provided with a coaxial induction coil 7, and the induction coil 7 is provided with a fixed plate 10 for fixing The plate 10 is provided with ...

Embodiment 2

[0037] This embodiment is further optimized on the basis of Embodiment 1 as follows: the lubricating mechanism 3 includes an oil storage tank 301, a first guide hole 302 and a second guide hole 303; One end of the guide hole 302 and the second guide hole 303 communicate with the oil storage tank 301 , and the other ends of the first guide hole 302 and the second guide hole 303 respectively pass through the side walls on the left and right sides of the piston body 2 .

[0038] After adopting the above technical solution: by setting the first guide hole 302 and the second guide hole 303 , both the first guide hole 302 and the second guide hole 303 communicate with the oil storage tank 301 . The lubricant is stored in the oil storage tank 301, and the lubricant is viscous and has poor fluidity. When the piston body 2 is in the process of reciprocating motion, the gas pressure squeezes the first guide hole 302 or the second guide hole 303, so that the lubricant overflows from the ...

Embodiment 3

[0040] This embodiment is further optimized on the basis of Embodiment 1 as follows: the bottom wall of the oil storage tank 301 is provided with a communication groove 4 along the radial direction, the width of the communication groove 4 is smaller than the width of the oil storage tank 301, the first guide hole 302 and The second guide holes 303 are all arranged horizontally and communicate with the communication groove 4 .

[0041] After adopting the above technical scheme: by expanding the connecting groove 4 on the bottom wall of the oil storage tank 301, the width of the communication groove 4 is smaller than the width of the oil storage tank 301, reducing the minimum thrust forcing the lubricant to overflow outwards, ensuring that the piston body 2 is reciprocating During the movement, the lubricant can be forced to overflow and play the role of lubrication.

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PUM

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Abstract

The invention discloses an opposed type free piston engine, and relates to the technical field of opposed type free piston engine devices. The opposed type free piston engine comprises a combustion cylinder body, piston bodies are symmetrically arranged in the combustion cylinder body, lubricating mechanisms used for storing lubricating agents are arranged on the outer walls of the piston bodies, and piston rods are connected to the outer sides of the piston bodies, the other ends of the piston rods penetrate through the side wall of the combustion cylinder body and are connected with translation plates, the piston rods are sleeved with magnet exciting coils located between the translation plates and the combustion cylinder body, coaxial induction coils are arranged on the peripheries of the magnet exciting coils, fixing plates are arranged in the induction coils, reset devices are arranged on the fixing plates, and compensation assemblies are arranged at the ends, close to the translation plates, of the reset devices. The relative positions of air springs can be compensated, and the relative distance between the air springs and connecting rods can be adjusted; and lubricating mechanisms are arranged between the outer walls of the pistons and the inner walls of the combustion cylinder body, and the lubricating effect is improved.

Description

technical field [0001] The invention relates to the technical field of opposed free-piston engine devices, in particular to an opposed free-piston engine. Background technique [0002] The traditional engine is generally a reciprocating internal combustion engine generator, which is connected to a rotating electrical machine through a crank linkage mechanism, including two-stroke and four-stroke structures. The disadvantages are complex transmission mechanism, low energy conversion efficiency, and high fuel consumption. [0003] Since the piston body is not constrained by the crank-rod mechanism, its top and bottom dead center positions are variable. At the same time, due to the lack of the crank-rod mechanism, the reciprocating motion of the piston body is provided with elastic recovery power by setting a restoring device. Generally, the return device is an air spring, but the position of the air spring is fixed, the relative position of the air spring cannot be changed, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/24F02B71/00F02B75/32F02F3/00F01M9/00F02F1/22
CPCF01M9/00F02B71/00F02B75/24F02B75/32F02F1/22F02F3/00
Inventor 孙凯强孙凯
Owner 孙凯强
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