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Piston synchronizer of opposed free piston engine

A piston engine, opposed technology, applied in the direction of free piston engine, internal combustion piston engine, combustion engine, etc., can solve the problems of reducing the development process of free piston engine, increasing the friction force between piston and cylinder, and limiting the upper limit of piston stroke, so as to reduce the The effect of installation accuracy requirements, reduction of wear speed, and elimination of radial force

Pending Publication Date: 2022-08-05
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a piston synchronizer for an opposed free-piston engine, which can effectively solve the problem that the synchronizer used inside the free-piston engine proposed in the above-mentioned background technology is a complex connecting rod structure, and at the same time, the size of the mechanical connecting rod structure limits the piston At the same time, affected by the transportation mode of the connecting rod structure, the piston will be subjected to additional radial force during transportation, which will increase the friction between the piston and the cylinder, thereby shortening the service life of the cylinder and reducing the Problems in the development of the free piston engine

Method used

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  • Piston synchronizer of opposed free piston engine
  • Piston synchronizer of opposed free piston engine
  • Piston synchronizer of opposed free piston engine

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Embodiment

[0035] Example: as Figure 1-7 As shown, the present invention provides a technical solution, a piston synchronizer of an opposed free-piston engine, comprising a driving cylinder 1, a driving piston 2 is symmetrically arranged on the inner side of the driving cylinder 1, and the middle part of one end of the driving piston 2 corresponds to the driving cylinder 1. The end positions are fixedly connected with the driving piston rod 3, the driving cylinder 1 is the internal standard cylinder of the piston engine, and the driving cylinder 1 is provided with a corresponding valve structure and a stroke limiting mechanism of the driving piston 2;

[0036] The top and bottom of the outer side of the driving cylinder 1 are provided with mounting side panels 4 , both ends of the two mounting side panels 4 are fixedly installed with mounting side posts 5 by bolts, and four corners of the two mounting side panels 4 are provided with mounting oval grooves. There are U-shaped installation...

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Abstract

The piston synchronizer of the opposed free piston engine comprises a driving air cylinder, driving pistons are symmetrically and movably arranged on the inner side of the driving air cylinder, and driving piston rods are fixedly connected to the positions, corresponding to the two ends of the driving air cylinder, of the middle of one end of each driving piston. Mounting side panels are arranged at the top and the bottom of the outer side of the driving air cylinder, mounting side columns are fixedly mounted at the two ends of the two mounting side panels through bolts, and mounting sleeves are connected to the ends of the two driving piston rods in a sleeving mode. Therefore, no extra friction force is generated between the driving piston and the inner wall of the driving air cylinder due to extra radial force in the moving process of the driving piston, the abrasion speed of the driving air cylinder is effectively reduced, the service life of the free piston engine is prolonged, and the use cost of the free piston engine is reduced.

Description

technical field [0001] The invention relates to the technical field of piston engines, in particular to a piston synchronizer of an opposed free piston engine. Background technique [0002] A free piston engine is an internal combustion engine without a crank connecting rod mechanism. The "freedom" of the piston means that its piston is not restricted by the crankshaft like a traditional internal combustion engine, but the motion law is determined by the gas pressure and load acting on the piston. The position of the dead center can be changed. Since the crankshaft is omitted, the free-piston engine has the characteristics of small size and compact structure, and the piston stroke is variable and the friction loss is small. The opposed free-piston engine is one of them. The main feature is two pistons. Symmetrical arrangement, mirror motion, the combustion chamber is between the two pistons, using the cycle mode of a two-stroke internal combustion engine, the working princip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B71/00
CPCF02B71/00Y02T10/12
Inventor 潘鑫孙福芹黎振张丽丽
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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