Sterling refrigerating system and cooling device
AssigneeSharp Kabushiki Kaisha
InventorKazushi Yoshimura
Life of this patent
Estimating the term…
Abstract
A ring-shaped jacket is fitted around the warm section of a Stirling refrigerating device, and a cylindrical heat-rejecting heat exchanger is disposed around the body of the Stirling refrigerating device with a gap secured in between. The jacket and the heat-rejecting heat exchanger are connected together with a pipe to form a closed circuit, and a refrigerant is circulated through the closed circuit. This allows the heat in the warm section to be transferred by the refrigerant, permitting efficient heat rejection from the heat-rejecting heat exchanger. Thus, the desired cold is obtained stably from the cold section of the Stirling refrigerating device.
Claims11
A Stirling refrigerating system, comprising:
- a Stirling refrigerating device including a piston and a displacer that reciprocate with a predetermined phase difference kept therebetween inside a cylinder having a working medium sealed therein, a heat absorber that absorbs heat from outside of the device to produce cold as a result of the working medium being expanded in an expansion space formed inside the cylinder as the displacer reciprocates, and a heat rejecter that rejects, to the outside of the device, heat generated as a result of the working medium being compressed in a compression space formed inside the cylinder as the piston reciprocates;
- a ring-shaped member fitted to the heat rejecter and having a refrigerant flow passage;
- a cylindrical heat-rejecting heat exchanger adapted to radiate heat collected by the ring-shaped member, the cylindrical heat-rejecting heat exchanger being disposed around the Stirling refrigerating device with a gap secured in between and formed to have a refrigerant flow passage;
- a refrigerant circulation passage formed by connecting the refrigerant flow passage of the ring-shaped member and the refrigerant flow passage of the heat-rejecting heat exchanger with a pipe;
- and
- circulating means for circulating a refrigerant through the refrigerant circulation passage.
A Stirling refrigerating system, comprising:
- a Stirling refrigerating device including a piston and a displacer that reciprocate with a predetermined phase difference kept therebetween inside a cylinder having a working medium sealed therein, a heat absorber that absorbs heat from outside of the device to produce cold as a result of the working medium being expanded in an expansion space formed inside the cylinder as the displacer reciprocates, and a heat rejecter formed as a ring-shaped refrigerant flow passage that rejects, to a refrigerant, heat generated as a result of the working medium being compressed in a compression space formed inside the cylinder as the piston reciprocates;
- a heat-rejecting heat exchanger disposed around the Stirling refrigerating device with a gap secured in between and defining a refrigerant flow passage therein;
- a refrigerant circulation passage formed by connecting the refrigerant flow passage of the heat rejecter and the refrigerant flow passage of the heat-rejecting heat exchanger with a pipe;
- and
- circulating means for circulating a refrigerant through the refrigerant circulation passage.
A Stirling refrigerating system, comprising:
- a Stirling refrigerating device including a heat absorber that absorbs heat from outside of the device to produce cold, and a heat rejecter that rejects generated heat;
- a first refrigerant flow passage that collects heat at the heat rejecter;
- a second refrigerant flow passage connected to the first refrigerant flow passage, the second refrigerant flow passage surrounding the Stirling refrigerating device and forming a heat exchanger that radiates heat from a refrigerant, the second refrigerant flow passage and the Stirling refrigerating device defining a gap therebetween;
- and
- circulating means for circulating the refrigerant inside the first and second refrigerant flow passages.
Dependencies are inferred from the claim text.