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Two-stroke Atkinson cycle free piston internal combustion engine generator

An internal combustion generator, Atkinson's technology, applied in free piston engines, internal combustion piston engines, combustion engines, etc., can solve problems such as the inability to realize the Atkinson cycle and the inability to ensure effective ventilation, and achieve standardization and productization , Facilitate standardization and productization, and improve the effect of ventilation efficiency

Inactive Publication Date: 2020-10-30
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For traditional two-stroke engines, the position of the scavenging port is fixed, and the Atkinson cycle cannot be realized
If the intake and exhaust valves are arranged on the cylinder head of the two-stroke engine at the same time, not only the effective ventilation cannot be guaranteed, but also the intake booster device needs to be installed separately

Method used

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  • Two-stroke Atkinson cycle free piston internal combustion engine generator

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Embodiment 1

[0032] A two-stroke Atkinson cycle free-piston internal combustion generator of the present invention mainly includes: a free-piston engine, a linear generator, and a connecting rod 8 .

[0033] The free piston engine includes: exhaust valve controller 1, fuel injector 2, exhaust valve 3, intake valve 4, cylinder 5, piston 6, one-way intake valve 7, intake valve spring 11, intake valve damping 12;

[0034] The linear generator includes: generator secondary 9, generator primary 10;

[0035] The piston 6 is provided with a plurality of intake passages;

[0036] Connection relationship:

[0037] A fuel injector 2 is arranged at the center of the top of the cylinder 5, and multiple exhaust passages are opened around it. The exhaust valve 3 is installed on the exhaust passage, and the piston 6 is installed inside the cylinder 5 to ensure that the piston 6 is always inside the cylinder 5 during operation. . The side surface of the piston 6 forms a sealing fit with the inner surf...

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Abstract

The invention relates to a two-stroke Atkinson cycle free piston internal combustion engine generator, and belongs to the field of energy power. The generator mainly comprises a free piston engine, alinear generator and a connecting rod. A piston is provided with a plurality of air inlet channels. Each air inlet channel is provided with an air inlet valve. An air inlet valve spring and an air inlet valve damper are installed between the air inlet valve and the piston. By adjusting the elasticity and the air inlet valve spring and the damping coefficient of the air inlet damper, the opening and closing moments of the air inlet valve can be optimized, Atkinson cycle is achieved on the two-stroke free piston engine, and the heat efficiency is improved.

Description

technical field [0001] The invention relates to an energy power engineering mechanical device, in particular to a two-stroke Atkinson cycle free-piston internal combustion generator, which belongs to the field of energy power. Background technique [0002] In recent years, people have been working hard to find an internal combustion power generation device with high energy conversion efficiency. Among them, the free piston internal combustion generator is a new type of energy conversion device formed by coupling a free piston engine and a linear generator. It is directly connected with the secondary side of the linear generator to form the only moving part - the piston assembly. When the system is running, the gas in the cylinder burns and expands to do work, pushes the piston and drives the mover to move, and then generates electrical energy, and finally converts the chemical energy of the fuel directly into electrical energy through a short transmission path. It has many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/02F02B71/04F02B63/04F02F3/24
CPCF02B63/041F02B71/04F02B75/02F02B2075/025F02F3/24Y02T10/12
Inventor 李延骁
Owner SHANDONG JIAOTONG UNIV
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