Liquid piston heat engine

Abstract

The invention discloses a liquid piton heat engine which comprises a cold air hydraulic cylinder, a hot air hydraulic cylinder, a cold hydraulic power mechanism, a hot hydraulic power mechanism, a cold liquid medium return system and a hot liquid medium return system, wherein the cold air hydraulic cylinder is communicated with the hot air hydraulic cylinder through an air medium communicating pipeline, a cooler is arranged on the cold air hydraulic cylinder, a heater is arranged on the hot air hydraulic cylinder, a cold liquid medium outlet of the cold air hydraulic cylinder is communicated with a cold liquid medium return hole through the cold hydraulic power mechanism and the cold liquid medium return system, a hot liquid medium of the hot air hydraulic cylinder is communicated with a hot liquid medium return hole through the hot hydraulic power mechanism and the hot liquid medium return system, and the cold hydraulic power mechanism, the cold liquid medium return system, the hot hydraulic power mechanism and the hot liquid medium return system are controlled by a progress control mechanism. According to the invention, a piston crank connecting rod mechanism of an engine is omitted, and a large-power thermomotor with high efficiency and small volume and light weight can be manufactured.

Description

technical field [0001] The invention relates to the field of thermal energy and power, in particular to a liquid piston heat engine. Background technique [0002] At present, the most important parts in a piston heat engine are the piston and the heat exchanger. The function of the piston is sealing and force transmission, that is, the piston should try to prevent the high-pressure gas working medium from leaking and transmit the pressure of the high-pressure gas working medium. go out. The pistons of traditional piston heat engines are all solid components with certain geometric shapes. For this reason, due to problems such as machining errors, force deformation, cold and heat deformation, and wear, the pistons and matching parts (cylinder liners, etc.) ) sealing problem, especially the sealing problem between the piston of the rotary engine and the fitting (the casing of the rotary engine), has always been one of the key issues affecting the efficiency and life of the eng...

AI Technical Summary

Problems solved by technology

Since the sealed shell (such as cylinder liner, etc.) and the solid piston are both solid structural parts, there are inevitably problems such as machining errors, force deformation, cold and heat deformation, and wear. If logically, mathematically and geometrically Scientifically analyzing the characteristics of this mechanism carefully, it can be concluded that the all-round and complete sealing of the solid piston and the sealed shell of the traditional piston heat engine can never be solved.

The traditional heat engine is represented by the Stirling engine. The Stirling engine is limited by the movement law of the crank and connecting rod mechanism. It is difficult to realize the Stirling cycle in the true sense, let alone use a heat engine to selectively Implement Stirling and Carnot cycles

Not only that, the heating and cooling efficiency of the Stirling engine is very limited, so it is difficult to make a large Stirling engine

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