JPS5963465A - thermodynamic reciprocating refrigeration engine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of a thermodynamic reciprocating engine that performs a cycle similar to the reverse Stirling cycle.

Structure of Conventional Example and Its Problems Conventionally, among various gas cycles, a Starlinog cycle consisting of two isothermal changes and two isovolumic changes has been known. This is a dynamic warfare cycle, and its efficiency is the same as the Carnot cycle, and the reverse cycle is frozen eyes.

FIG. 1 shows an example of a conventional refrigerator (hereinafter simply referred to as a refrigerator) that performs a cycle similar to the reverse Stirling cycle. In the same figure, 1 is a teeth placer, 2 is a piston, and the space where the teeth placer 1 and the rear head part 3 are quadrupled becomes the low crystal side working space 4, and the space between the teeth placer 1 and the piston 2 and/or The space surrounded by the cylinder wall portion 6 becomes the high temperature side working space 6.

The low temperature side working space 4 and the high temperature side working space 6 are communicated through a low temperature side communication port 7, a regenerator 8, and a high temperature side communication port 9. /The cypress wall portion 3 and the low-temperature side communication port 7 constitute a low-temperature side heat exchanger, /The cylindrical wall portion 5 and the high-temperature side communication port constitute a high-temperature side heat exchanger.

Then, the heat exchanger on the low-temperature side removes heat from the surrounding air, and the high-temperature I
The IIIU heat exchanger applies heat to the cooling water 10.

Display! J-1;j:, taste play salo, 1
・11, It is connected to the crank/gift 13 via the taste laser stove 12. The piston/2 is connected to the crank/gift 13 via a piston conorod 14. The crankshaft 13 is connected to the motor shaft 17 via a coupling IE5.16.

In this refrigerator, since the electric motor 18 is placed outside the airtight container, it is necessary to seal the shaft with a mechanical 7-rule 19 to prevent leakage of refrigerant gas, which has the disadvantage of complicating the structure. Ta.

In addition, even if the shaft is sealed, some leakage occurs, so long-term continuous operation is not possible.

Purpose of the Invention The present invention solves the above-mentioned drawbacks of the conventional refrigerator.It has a simple structure, can operate continuously for a longer time than the conventional refrigerator, and can be easily moved. The purpose is to

DESCRIPTION OF THE INVENTION To achieve this object, the present invention provides at least two thermodynamic cycles in which the working fluid undergoes a thermodynamic cycle.
The volume of the working space is continuously changed by at least two screw-like members that reciprocate with a phase difference, and the piston-like portion A'A is
The container of the thermodynamic reciprocating refrigeration engine, which is connected to the drive mechanism that rotates once per hour due to the turmoil, has a sealed structure, and the electric motor is housed in the container Jig and cooled with cooling water. Ami.

EMBODIMENTS The present invention will now be described with reference to FIG. 2 of the accompanying drawings showing one embodiment thereof. In describing this embodiment, members that are the same as those of the conventional example shown in FIG. 1 will be indicated by the same symbol, and detailed explanation will be omitted.

In FIG. 2, the displacer 1 is connected to the crank/gift 13 via the displacer 11, taste placer stove, and door 12, and the piston 2 is connected to the crank/gift 13 via the piston rod 14. 13
is connected to. These are the stator 19 and rotor 20
It is driven by an electric motor section consisting of. This electric motor section is housed in a closed container, and a meter bracket 21 is formed around it.

The cooling water flows in from the heat exchanger inlet 22, flows around the high-temperature side heat exchanger, flows out from the heat exchanger outlet 1'' 23, and passes through the pipe 24 to the meter/burner. From the inflow IJ 25, the water flows through the water/scald throat 21 and removes the heat generated from the electric motor section, and is discharged from the water/burn throat outlet 26.

In this refrigerator, since the electric motor section is housed in a closed container, leakage of refrigerant gas can be completely prevented without using a mechanical knob or the like.

Therefore, long-term continuous operation is possible with a simple structure. Furthermore, cooling of the electric motor is carried out easily and reliably by using cooling water, and since the electric motor part is housed in a sealed container, it can be easily moved without requiring force or sillage.

Effects of the Invention As is clear from the above embodiments, the refrigerator of the present invention has at least two working spaces, one high temperature and one low temperature, in which the working fluid undergoes a thermodynamic cycle, and the volume of the working space is of a thermodynamic reciprocating refrigeration engine, in which the piston-like components are continuously changed by at least two piston-like members reciprocating with a phase difference from each other, and the piston-like components are connected to a drive mechanism driven by an electric motor. The container has a sealed structure,
The electric motor is housed in the container and cooled with cooling water.It has a simple structure and can be operated continuously for a longer period of time than conventional thermodynamic reciprocating refrigeration engines, and can be moved to other places. It has many advantages.

[Brief Description of the Drawings] Fig. 1 is a vertical sectional view of a refrigerator that performs a cycle similar to a conventional reverse Stirling cycle, and Fig. 2 is a longitudinal sectional view of a refrigerator that performs a cycle similar to a reverse Stirling cycle in an embodiment of the present invention. This is a vertical cross section of the refrigerator. 1...Displacer, 2...Pust/, 4...Low temperature'' 11 operation amount, 6...High temperature side working space, 11...Taste play Saronodo, 1
2...Displayer control rod, 13...Crank shaft, 14...Piston control rod, 19...Stator, 20...Rotor,
21... Umeter jacket. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] It has at least two working spaces, one high temperature and one low temperature, in which the working fluid undergoes a thermodynamic cycle, and the volume of the working fluid reciprocates with a phase difference between the at least two working spaces.
A container of a thermodynamic reciprocating refrigeration engine, in which two pistons ν are continuously changed by a member, and the piston-shaped parts are connected to a drive mechanism driven by an electric motor, has a sealed structure, and the electric motor is housed in the container. A thermodynamic reciprocating refrigeration engine that is cooled with cooling water.