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Free piston linear generator based on waste heat utilization

A technology of linear generators and pistons, applied to internal combustion piston engines, engine components, combustion engines, etc., can solve problems such as energy loss, and achieve the effects of protecting the environment and saving energy

Active Publication Date: 2013-08-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, during the working process of the free-piston linear generator, the exhaust gas produced by the general internal combustion engine is directly discharged to the environment. Since the exhaust gas has a certain temperature and pressure, direct discharge will cause a part of energy loss

Method used

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  • Free piston linear generator based on waste heat utilization

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Embodiment 1

[0018] A free-piston linear generator based on waste heat utilization mainly includes: a free-piston internal combustion engine, a linear generator, and an exhaust gas expansion cylinder. Its free piston internal combustion engine mainly includes: fuel injector 1, air inlet 2, exhaust port 3, piston 4, internal combustion engine cylinder 5; linear generator includes: motor stator 6, motor mover 7; exhaust gas utilization components include: air induction pipe 8. Intake valve 11, exhaust valve 10, return piston 9, return cylinder 13, sprinkler 12.

[0019] The specific connection relationship is: the return piston 9 is placed in the return cylinder 13; the sprinkler 12 is installed on the return cylinder 13; one end of the bleed air pipe 8 is connected to the exhaust port 3 of the internal combustion engine cylinder 5, and the other end is connected to the intake valve of the return cylinder 11 is connected; the return piston 9 is connected to one end of the linear motor mover ...

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Abstract

The invention relates to a free piston linear generator based on waste heat utilization and belongs to the technical field of energy power. The free piston linear generator specifically comprises a free piston combustion engine, the linear generator and a waste gas expansion cylinder. The free piston combustion engine comprises an oil atomizer, a gas inlet, a gas outlet, a piston and a combustion engine cylinder. The linear generator comprises a motor stator and a motor rotor. A waste gas utilizing assembly comprises a gas guiding pipe, a gas inlet door, a gas outlet door, a reset piston, a reset cylinder and a water sprayer. A working process includes a starting process and a steady operation process. In a cold start-up process, a linear engine works in a motor mode and drives a device to be started and work. In the steady operation process, the linear generator works in a generator mode, the combustion engine works to drive the linear generator to do work and generate power, then a moving assembly returns to a top dead center through a waste gas waste heat utilization method, and next circulation movement is conducted. The free piston linear generator has the advantages of being capable of protecting environment and saving energy.

Description

technical field [0001] The invention relates to a free-piston linear generator based on waste heat utilization, which belongs to the technical field of energy and power. Background technique [0002] The free-piston linear generator is a new type of power device that has emerged in recent years, and its entire system includes two modules: an internal combustion engine and a linear generator. Different from traditional models, this new power unit does not have a crank linkage. The internal combustion engine module and the linear generator module are generally directly connected through connecting rods, and the mechanical energy converted by the former through thermal energy can be directly converted into electrical energy in the linear motor and output to the outside. Thanks to its shorter power transmission chain, its mechanical losses are lower than conventional models. Therefore, in terms of overall efficiency, the free-piston internal combustion power generation system ...

Claims

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Application Information

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IPC IPC(8): F02M25/03F02B75/24
CPCY02T10/16Y02T10/12
Inventor 冯慧华李林可左正兴袁晨恒王梦秋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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