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Free piston engine central combustion chamber tumble air intake structure

A piston engine and air intake structure technology, applied in free piston engines, internal combustion piston engines, combustion engines, etc., can solve the problems of low fuel utilization and large emissions, and achieve high fuel utilization efficiency, high combustion efficiency, and acceleration The effect of flame spread

Pending Publication Date: 2020-08-28
江苏铱莱德驱动系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a free-piston engine central combustion chamber tumble air intake structure to overcome the defects of low fuel utilization and large emissions in the free-piston central combustion internal combustion engine in the prior art

Method used

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  • Free piston engine central combustion chamber tumble air intake structure
  • Free piston engine central combustion chamber tumble air intake structure

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Embodiment

[0023] Such as Figure 1-2 As shown, a free-piston engine central combustion chamber tumble intake structure includes a cylinder block 2, the two sides of the cylinder block 2 cavity are provided with an intake piston 11 and an exhaust piston 12, and the intake piston 11 and the combustion chamber 6 between the exhaust piston 12, the top of the cylinder block 2 is provided with a fuel injector 4, and its bottom is provided with a spark plug 7;

[0024] The two sides of the fuel injector 4 and the spark plug 7 on the same vertical line are respectively provided with an intake port 3 and an exhaust port 5 .

[0025] The upper side air port of the air intake port 3 is inclined towards the direction of the fuel injector 4 , and the lower side air port is inclined towards the opposite direction of the fuel injector 4 ; the axis of the exhaust port 5 is perpendicular to the axis of the cylinder block 2 .

[0026] When the intake piston 11 and the exhaust piston 12 reach the outer d...

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Abstract

The invention discloses a free piston engine central combustion chamber tumble air intake structure. The free piston engine central combustion chamber tumble air intake structure comprises an air cylinder body, the two sides of the interior of a cavity of the air cylinder body are provided with an air intake piston and an air exhaust piston, and a combustion chamber is arranged between the air intake piston and the air exhaust piston; the top end of the air cylinder body is provided with an oil injector, the bottom of the air cylinder body is provided with a spark plug, and the two sides of the oil injector and the two sides of the spark plug located on the same plumb line with the oil injector are provided with air inlets and air outlets; and the air cylinder body of the combustion chamber is horizontally placed along the axis, and the combustion chamber is arranged in the middle of the air cylinder body. The free piston engine central combustion chamber tumble air intake structure issimple and symmetrical in structure, tumble can be organized in the cylinder to promote mixing of oil and gas, the utilization efficiency of fuel oil is high, the combustion process is smooth and steady, the output power of an engine is improved, and reduction of fuel oil consumption rate and reduction of pollution emission can be achieved at the same time.

Description

technical field [0001] The invention relates to a tumble air intake structure in a central combustion chamber of a free-piston engine, belonging to the technical field of engines. Background technique [0002] In today's society, automobiles have been widely integrated into people's production and life, and the resulting energy and environmental problems have become increasingly prominent, and have gradually become the focus of research by practitioners in the automotive industry all over the world. Among various emerging technologies, the free piston engine has become a research hotspot in recent years due to its advantages of compact structure, light weight, strong fuel applicability and high thermal efficiency. [0003] The free-piston central combustion chamber cancels the crank connecting rod, cam and other mechanisms, and the top surfaces of the opposite intake piston and exhaust piston and the wall surface of the cylinder block form the combustion chamber. Since the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B31/00F02B23/10F02B71/00F02B75/28
CPCF02B23/104F02B31/00F02B71/00F02B75/28F02B2023/106Y02T10/12
Inventor 徐照平孙晔单建东周兆荣
Owner 江苏铱莱德驱动系统有限公司
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