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Single-piston type hydraulic free piston engine

A piston engine, single-piston technology, used in power and hydraulic fields, can solve the problems of poor machining processability of piston components, excessive axial dimensions, and uncompact structure of hydraulic free-piston engines. effect on size, improved control and stability

Inactive Publication Date: 2009-02-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these arrangements will lead to the excessive axial size of the piston assembly (at least twice the piston stroke), making the structure of the hydraulic free piston engine not compact, and the processing of the piston assembly will deteriorate.

Method used

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  • Single-piston type hydraulic free piston engine
  • Single-piston type hydraulic free piston engine
  • Single-piston type hydraulic free piston engine

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] The main idea of ​​the technical solution of the present invention integrates the traditional reciprocating piston internal combustion engine and the plunger hydraulic pump, eliminating the need for the internal combustion engine to convert the reciprocating motion of the piston into the rotary motion of the crank linkage mechanism and the rotary motion in the plunger pump. It is converted into a reciprocating swash plate mechanism, and directly connects the piston of the internal combustion engine to the plunger of the hydraulic pump, which not only shortens the transmission chain, but also saves the repeated conversion between different motion forms, and optimizes the engine and transmission. The energy transmission form of the system realizes the flexible adjustment of the power transmissio...

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Abstract

The invention discloses a single-piston type hydraulic free piston engine; in the invention, a traditional reciprocating piston internal combustion engine and a plunger-typed hydraulic pump are integrated into a whole, a pump piston and two compression pistons are simultaneously and directly connected with a power piston in a rigid manner to form a piston component, therefore, a crank link mechanism which can transform the reciprocating movement of the pistons into rotary motion in the internal combustion engine, and a swash plate mechanism which can transform the rotary motion of the pistons into reciprocating movement in a plunger pump can be omitted, and the piston of the internal combustion engine is directly connected with the plunger of the hydraulic pump in a rigid manner. By adopting the technical proposal of the invention, a driving chain can be shortened, the repeated transformation between different movement forms can be omitted, the energy transfer form between an engine and a drive system can be optimized, and the soft readjustment of a power drive unit can be realized.

Description

technical field [0001] The invention relates to the technical field of power and hydraulic pressure, in particular to a single-piston hydraulic free-piston engine. Background technique [0002] As the global energy crisis and environmental degradation become increasingly apparent, the requirements for energy-saving and environmental protection performance of engines are also increasing. On the one hand, people are committed to the improvement and perfection of traditional engines, and on the other hand, they are diligently seeking new power devices. The hydraulic free piston engine is a new type of power transmission device that integrates a traditional reciprocating piston internal combustion engine and a plunger hydraulic pump. [0003] From a structural point of view, the piston of the internal combustion engine and the plunger of the hydraulic plunger pump are rigidly connected to achieve simultaneous action, and the heat energy generated by the combustion of the fuel i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C1/00
Inventor 赵振峰赵长禄张付军
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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