Stirling refrigerator for vehicle

Abstract

A Stirling refrigerator for a vehicle may include a drive portion receiving driving torque to be rotated, a compression portion that may be connected to the drive portion to isothermally compress operational fluid through rotation of a rotation shaft, an expansion portion that may be disposed at one side of the compression portion and isothermally expands the operational fluid that may be compressed by the compression portion through the rotation of the rotation shaft to perform an endothermic reaction, and a regeneration portion that may be disposed at one side of the expansion portion and connects the compression portion with the expansion portion such that the compressed operational fluid may be supplied to the expansion portion.

What is claimed is: 
     
         1 . A Stirling refrigerator apparatus for a vehicle, comprising:
 a drive portion receiving driving torque to be rotated;   a compression portion that is engaged to the drive portion to isothermally compress operational fluid through rotation of a rotation shaft receiving the driving torque from the drive portion;   an expansion portion that is disposed at one side of the compression portion to isothermally expand the operational fluid that is compressed by the compression portion through the rotation of the rotation shaft so as to perform an endothermic reaction; and   a regeneration portion that is disposed at one side of the expansion portion and fluid-connects the compression portion with the expansion portion such that a compressed operational fluid is supplied to the expansion portion therethrough.   
     
     
         2 . The Stirling refrigerator apparatus for the vehicle of  claim 1 , wherein the drive portion includes a pulley disposed at one end of the rotation shaft, wherein the other end of the rotation shaft is disposed to penetrate the compression portion and the expansion portion. 
     
     
         3 . The Stirling refrigerator apparatus for the vehicle of  claim 1 , wherein the compression portion includes:
 a first housing wherein the rotation shaft is rotatably disposed and a plurality of compression chambers are formed therein;   a first slanted plate that is slantedly mounted on the rotation shaft in the first housing and rotates with the rotation shaft;   a plurality of first shoes that are mounted on the first slanted plate; and   a plurality of first pistons that are mounted on the first slanted plate through the first shoes and are slidably inserted into the compression chambers such that according to rotation of the first slanted plate, the first pistons compress the operational fluid in the compression chambers.   
     
     
         4 . The Stirling refrigerator apparatus for the vehicle of  claim 3 , wherein the compression chambers are formed inside the first housing at a predetermined angular distance from each other in a circumferential direction of the rotation shaft. 
     
     
         5 . The Stirling refrigerator apparatus for the vehicle of  claim 3 , wherein the first shoes and the first pistons are formed to correspond to the compression chambers at a predetermined angular distance in a circumferential direction of the first slanted plate. 
     
     
         6 . The Stirling refrigerator apparatus for the vehicle of  claim 3 , wherein the expansion portion includes:
 a second housing that is disposed at the one side of the compression portion, wherein the rotation shaft is rotatably disposed therein, and a plurality of expansion chambers are formed therein;   a second slanted plate that is slantedly mounted on the rotation shaft in the second housing and rotates with the rotation shaft;   a plurality of second shoes that are mounted on the second slanted plate; and   a plurality of second pistons that are mounted on the second slanted plate through the second shoes and are slidably inserted into the expansion chambers such that according to the rotation of the second slanted plate, the second pistons compress the operational fluid in the expansion chambers.   
     
     
         7 . The Stirling refrigerator apparatus for the vehicle of  claim 6 , wherein the expansion chambers are formed in the second housing at a predetermined angular distance in a circumference direction based on the rotation shaft. 
     
     
         8 . The Stirling refrigerator apparatus for the vehicle of  claim 6 , wherein the second shoes and the second pistons are formed to correspond to the expansion chambers at a predetermined angular distance in a circumferential direction of the second slanted plate. 
     
     
         9 . The Stirling refrigerator apparatus for the vehicle of  claim 6 , wherein the first slanted plate and the second slanted plate have a phase of a predetermined angle and are slantedly disposed on the rotation shaft passing through the compression portion and the expansion portion, wherein slant angles thereof are in opposite directions from each other. 
     
     
         10 . The Stirling refrigerator apparatus for the vehicle of  claim 6 , wherein the compression chambers and the expansion chambers are coaxially positioned along an imaginary line to correspond to each other. 
     
     
         11 . The Stirling refrigerator apparatus for the vehicle of  claim 1 , wherein the regeneration portion receives the operational fluid that is isothermally compressed to have a high temperature in the compression portion and absorbs heat of the operational fluid to supply the expansion portion with the operational fluid, and receives the operational fluid that is isothermally expanded to have a low temperature, adds the heat to the operational fluid, and supplies the compression portion with the operational fluid. 
     
     
         12 . The Stirling refrigerator apparatus for the vehicle of  claim 6 , wherein the compression portion, the expansion portion, and the regeneration portion are sequentially disposed along the rotation shaft, and the compression portion is fluidly connected to the regeneration portion through a connection pipe that is disposed outside of the compression portion corresponding to the compression chamber. 
     
     
         13 . The Stirling refrigerator apparatus for the vehicle of  claim 1 , wherein the compression portion is fluid-connected to a cooling apparatus. 
     
     
         14 . The Stirling refrigerator apparatus for the vehicle of  claim 1 , wherein the expansion portion is fluid-connected to an air-conditioning device. 
     
     
         15 . A Stirling refrigerator apparatus for a vehicle, comprising:
 a drive portion receiving driving torque of an engine in the vehicle to be rotated;   a compression portion that is engaged to the drive portion and is coupled to a rotation shaft of the drive portion to isothermally compress an operational fluid through rotation of the rotation shaft;   an expansion portion that is disposed at one side of the compression portion to isothermally expand the operational fluid that is compressed by the compression portion; and   a regeneration portion that is disposed between the compression portion and the expansion portion and fluid-connects the compression portion with the expansion portion such that a compressed operational fluid is supplied to the expansion portion therethrough.   
     
     
         16 . The Stirling refrigerator apparatus for the vehicle of  claim 15 , wherein the compression portion includes:
 a first housing wherein the rotation shaft is rotatably disposed and a plurality of compression chambers are formed therein;   a first slanted plate that is slantedly mounted on the rotation shaft in the first housing and rotates with the rotation shaft;   a plurality of first shoes that are mounted on the first slanted plate; and   a plurality of first pistons that are mounted on the first slanted plate through the first shoes and are slidably inserted into the compression chambers such that according to rotation of the first slanted plate, the first pistons compress the operational fluid in the compression chambers.   
     
     
         17 . The Stirling refrigerator apparatus for e vehicle of  claim 16 , wherein the expansion portion includes:
 a second housing that is disposed at one side of the compression portion, wherein the rotation shaft is rotatably disposed therein, and a plurality of expansion chambers are formed therein;   a second slanted plate that is slantedly mounted on the rotation shaft in the second housing and rotates with the rotation shaft;   a plurality of second shoes that are mounted on the second slanted plate; and   a plurality of second pistons that are mounted on the second slanted plate through the second shoes and are slidably inserted into the expansion chambers such that according to the rotation of the second slanted plate, the second pistons compress the operational fluid in the expansion chambers.   
     
     
         18 . The Stirling refrigerator apparatus for the vehicle of  claim 17 , wherein the first slanted plate and the second slanted plate have a phase of a predetermined angle and are slantedly disposed on the rotation shaft of the compression portion and the expansion portion, wherein slant angles thereof are in opposite directions from each other. 
     
     
         19 . The Stirling refrigerator apparatus for the vehicle of  claim 15 , wherein the compression portion is fluid-connected to a cooling apparatus. 
     
     
         20 . The Stirling refrigerator apparatus for the vehicle of  claim 15 , wherein the expansion portion is fluid-connected to an air-conditioning device.