Self-pumping phase change thermal energy device

• US 5,083,605 A
• Filed: 08/17/1990
• Issued: 01/28/1992
• Est. Priority Date: 08/17/1990
• Status: Expired due to Term

• Current Assignee: Sundstrand Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Sundstrand Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Collings, Roger J.
• Primary Examiner(s): DAVIS JR, ALBERT
• Application Number:
  US07/569,878
• Time in Patent Office: 529 Days
• Field of Search: 165/32, 165/41, 165/104.19, 165/40, 165/10, 165/104.33
• US Class Current: 165/10
• CPC Class Codes: B64D 13/00 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space , or structural parts of the aircraft treatment rooms with artificial climate for medical purposes A61G10/02; respiratory apparatus in general A62B; for vehicles in general B60H
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

This invention relates to a thermal energy device for receiving and storing externally applied thermal energy. The thermal energy device includes a thermal energy receiver which is adapted to receive the intermittent externally applied thermal energy to heat and expand a fluid in the thermal energy receiver. A thermal energy store is in fluid communication with the thermal energy receiver to receive and store the heated and expanded fluid received from the thermal energy receiver. The thermal energy store is responsive to the receiving and storing of the heated and expanded fluid such that, as the heated and expanded fluid is received and stored, the thermal energy store delivers more of the fluid to the thermal energy receiver to continue accommodating the intermittent externally applied thermal energy. The thermal energy store is also responsive to dissipation of the intermittent externally applied thermal energy into the fluid such that, as the intermittent externally applied thermal energy is dissipated and the heated and expanded fluid contracts, the thermal energy store returns the fluid to the thermal energy receiver in preparation for subsequent intermittent externally applied thermal energy.

Claims

1. A thermal energy device for receiving and storing intermittent externally applied thermal energy, comprising:

a thermal energy receiving means adapted to receive said intermittent externally applied thermal energy to heat and expand a fluid in said thermal energy receiving means, and

a thermal energy storage means in fluid communication with said thermal energy receiving means to receive and store said heated and expanded fluid received from said thermal energy receiving means, said thermal energy storage means responsive to receiving and storing of said heated and expanded fluid such that, as said heated and expanded fluid is received and stored, said thermal energy storage means delivers more of said fluid to said thermal energy receiving means to continue accommodating said intermittent externally applied thermal energy, said thermal energy storage means also responsive to dissipation of said intermittent externally applied thermal energy into said fluid such that, as said intermittent externally applied thermal energy is dissipated and said heated and expanded fluid contracts, said thermal energy storage means returns said fluid to said thermal energy receiving means in preparation for subsequent of said intermittent externally applied thermal energy.

2. The thermal energy device of claim 1 wherein said intermittent externally applied thermal energy appears as surges.

3. The thermal energy device of claim 2 wherein said thermal energy storage means includes a small bellows to store said fluid, said small bellows in fluid communication with said thermal energy receiving means delivering said fluid to said thermal energy receiving means.

4. The thermal energy device of claim 3 wherein said thermal energy storage means further includes a large bellows in fluid communication with said thermal energy receiving means to receive and store said heated and expanded fluid received from said thermal energy receiving means.

5. The thermal energy device of claim 4 wherein said large bellows includes a diaphragm, said diaphragm coupled to said small bellows compressing said small bellows upon expansion of said large bellows thereby forcing said fluid in said small bellows towards said thermal energy receiving means, said diaphragm responsive to dissipation of said thermal energy surges into said fluid such that as said thermal energy surges are dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving means into said small bellows.

6. The thermal energy device of claim 5 wherein said thermal energy device further includes a return spring coupled with said diaphragm, said return spring acting upon said diaphragm to ensure that as said thermal energy surges are dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving means into said small bellows.

7. The thermal energy device of claim 2 wherein said thermal energy receiving means is provided by an enclosed channel through which said fluid passes and is exposed to said thermal energy surges.

8. The thermal energy device of claim 7 wherein said thermal energy storage means includes a small bellows to store said fluid, said small bellows in fluid communication delivering said fluid to said thermal energy receiving channel.

9. The thermal energy device of claim 8 wherein said thermal energy storage means further includes a large bellows in fluid communication with said thermal energy receiving channel to receive and store said heated and expanded fluid received from said thermal energy receiving channel.

10. The thermal energy device of claim 9 wherein said large bellows includes a diaphragm, said diaphragm coupled to said small bellows compressing said small bellows upon expansion of said large bellows thereby forcing said fluid in said small bellows towards said thermal energy receiving channel, said diaphragm responsive to dissipation of said thermal energy surges into said fluid such that as said thermal energy surges are dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving channel into said small bellows.

11. The thermal energy device of claim 10 wherein said thermal energy device further includes a return spring coupled with said diaphragm, said return spring acting upon said diaphragm to ensure that as said thermal energy surges are dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving channel into said small bellows.

12. The thermal energy device of claim 1 wherein said thermal energy device includes an enclosure surrounding said thermal energy storage means, said enclosure of said thermal energy storage means including an orifice to accommodate a sudden decompression of a pressurized region outside said thermal energy device, said orifice venting said enclosure of said thermal energy storage means to said outside pressurized region such that said fluid in said thermal energy receiving means can accommodate said externally applied thermal energy without interruption during said sudden decompression.

13. The thermal energy device of claim 12 wherein said thermal energy storage means includes a small bellows to store said fluid, said small bellows in fluid communication with said thermal energy receiving means delivering said fluid to said thermal energy receiving means.

14. The thermal energy device of claim 13 wherein said thermal energy storage means further includes a large bellows in fluid communication with said thermal energy receiving means to receive and store said heated and expanded fluid received from said thermal energy receiving means.

15. The thermal energy device of claim 14 wherein said large bellows includes a diaphragm, said diaphragm coupled to said small bellows compressing said small bellows upon expansion of said large bellows thereby forcing said fluid in said small bellows towards said thermal energy receiving means, said diaphragm responsive to dissipation of said intermittent externally applied thermal energy into said fluid such that as said intermittent externally applied thermal energy is dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving means into said small bellows.

16. The thermal energy device of claim 15 wherein said thermal energy device further includes a return spring coupled with said diaphragm, said return spring acting upon said diaphragm to ensure that as said intermittent externally applied thermal energy is dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving means into said small bellows.

17. The thermal energy device of claim 2 wherein said thermal energy device receives said thermal energy surges from an electric generating system.

18. A thermal energy device for receiving and storing intermittent externally applied thermal energy, comprising:

a small bellows to store a fluid,

an enclosed thermal energy receiving channel in fluid communication with said small bellows, said thermal energy receiving channel adapted to receive said intermittent externally applied thermal energy to heat and expand said fluid in said thermal energy receiving channel,

a large bellows in fluid communication with said thermal energy receiving channel to receive and store said fluid heated and expanded in said thermal energy receiving channel, said large bellows having a diaphragm, said diaphragm coupled to said small bellows compressing said small bellows upon expansion of said large bellows thereby forcing said fluid towards said thermal energy receiving channel, said diaphragm responsive to dissipation of said intermittent externally applied thermal energy into said fluid such that as said intermittent externally applied thermal energy is dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving channel into said small bellows, and

a return spring coupled with said diaphragm, said return spring acting upon said diaphragm to ensure that as said intermittent externally applied thermal energy is dissipated and said heated and expanded fluid contracts, said diaphragm acts upon said large bellows compressing said large bellows upon expansion of said small bellows thereby drawing said fluid back from said thermal energy receiving channel into said small bellows.

19. The thermal energy device of claim 18 wherein said thermal energy device includes an enclosure surrounding said small bellows and said large bellows, said enclosure of said small bellows and said large bellows including an orifice to accommodate a sudden decompression of a pressurized region outside said thermal energy device, said orifice venting said enclosure of said small bellows and said large bellows to said outside pressurized region such that said fluid in said thermal energy receiving channel can accommodate said externally applied thermal energy without interruption during said sudden decompression.