Double-group element single-piston type hydraulic free piston engine

A piston engine and single-piston technology, which is applied in the field of energy and power, can solve problems such as difficulty in precise control of compression ratio, impact on engine reliability, application limitations, etc., and achieve the effect of compact structure, simple structure, and high energy conversion efficiency
CN101377150AInactive Publication Date: 2009-03-04SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
Publication Date
2009-03-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a double-component single-piston type hydraulic free-piston engine, which comprises a single-piston hydraulic free-piston engine, an oxidizer storage tank, a fuel agent storage tank, an oxidizer control valve, a fuel agent control valve and an electronic control unit; wherein, both the outlet end of the oxidizer control valve and the outlet end of the fuel agent control valve are communicated with the air inlet of the power cavity of the single-piston hydraulic free-piston engine; the inlet end of the oxidizer control valve is connected with the outlet end of the oxidizer storage tank; the inlet end of the fuel agent control valve is connected with the outlet end of the fuel agent storage tank; and the control end of the oxidizer control valve and the control end of the fuel agent control valve are respectively connected with the corresponding output ends of the electronic control unit. The double-component single-piston type hydraulic free-piston engine, which is characterized by simple structure, reliable operation, wide application range, high energy density, high power density, little moving parts, etc., can operate under various oxygen-deficient or oxygen-free environments, such as plateaus, underwater and outer space, and can realize stroke control and regenerative braking.
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Description

technical field

[0001] The invention relates to a dual-component single-piston hydraulic free-piston engine, in particular to a hydraulic free-piston special engine integrating a prime mover and a reciprocating hydraulic pump, which can be used for energy-autonomous walking of engineering walking machinery and field operations Machinery, self-propelled platforms, and power devices for hydraulic energy supply in anaerobic or hypoxic environments (such as space, underwater, or plateau, etc.), have a wide range of applications in hydraulic forklifts, hydraulic excavators, hydraulic pavers, and energy autonomous robots. The application prospect belongs to the field of energy and power technology. Background technique

[0002] Hydraulic free piston engine, also known as prime mover reciprocating hydraulic pump, refers to a type that integrates prime mover and hydraulic pump, uses liquid (usually hydraulic oil) as the working medium, and uses liquid pressure to realize non-rigid t...

Claims

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