IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0512568
(2006-08-30)
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등록번호 |
US-7536861
(2009-07-01)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Lowrie, Lando & Anastasi, LLP
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인용정보 |
피인용 횟수 :
3 인용 특허 :
23 |
초록
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The invention includes a solar collector subsystem and a heat engine. The solar collector system uses heliostat mirrors, a parabolic mirror, and a convex concentrator lens or compound parabolic concentrator to gather a large amount of solar energy into a very intense beam. The beam is used to vapori
The invention includes a solar collector subsystem and a heat engine. The solar collector system uses heliostat mirrors, a parabolic mirror, and a convex concentrator lens or compound parabolic concentrator to gather a large amount of solar energy into a very intense beam. The beam is used to vaporize an injected droplet of working fluid, whereby multiple opposed pistons responsive to the vapor formed reciprocate to produce electric energy by means of linear electric generators. The heat engine includes a chamber having three orthogonal sets of opposed pistons, wherein each piston is independently axially reciprocable and coupled to a linear electric generator. One piston is provided with an axially located window that admits the concentrated solar beam from the solar collector subsystem into the chamber of the heat engine. Another piston is provided with an injector that selectably injects a water drop into the center of the chamber where it can be vaporized by impingement of the concentrated solar beam.
대표청구항
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What is claimed: 1. A solar generator system comprising: (a) a solar collector subsystem having (i) a heliostat mirror, (ii) a parabolic mirror, and (iii) a concentrator lens or a compound parabolic concentrator; and (b) a heat engine having (i) a chamber; and (ii) a plurality of axially reciproca
What is claimed: 1. A solar generator system comprising: (a) a solar collector subsystem having (i) a heliostat mirror, (ii) a parabolic mirror, and (iii) a concentrator lens or a compound parabolic concentrator; and (b) a heat engine having (i) a chamber; and (ii) a plurality of axially reciprocable opposed piston pairs, each piston having a surface facing the chamber, wherein one piston has a window to admit a concentrated solar beam from the solar collector subsystem and one piston includes an injector that injects a fluid droplet into the chamber. 2. The solar generator system of claim 1, further comprising an electric generator associated with each piston. 3. The solar generator system of claim 1, wherein the heliostat mirror is rotates about a vertical axis and a horizontal axis parallel to a heliostat mirror reflective face. 4. The solar generator system of claim 3, wherein the heliostat mirror is rotated using a self-actuating roller bearing. 5. The solar generator system of claim 3 having multiple identical heliostat mirrors positioned to reflect incident sunlight to the parabolic mirror. 6. The solar generator system of claim 1, further comprising a shutter assembly having a selectably open/closed slot, wherein the open slot is aligned to admit the concentrated solar beam through the open slot and into the piston window of the heat engine and the closed slot reflects the concentrated solar beam away from the heat engine. 7. The solar generator system of claim 1, wherein the chamber is intersected by passages for each of the opposed piston pairs. 8. The solar generator system of claim 1, wherein each piston reciprocates between an inner position and an outer position, whenever the piston is in the inner position a face of the piston is closer to the center of the heat engine than when the piston is in the outer position. 9. The solar generator system of claim 8, further comprising an exhaust vent, wherein the exhaust vent is open whenever at least one pair of pistons are in the outer position. 10. The solar generator system of claim 1, each piston of an opposed piston pair has a substantially identical size and mass to the other piston of the opposed pair. 11. The solar generator system of claim 1, wherein the fluid droplet includes water. 12. The solar generator system of claim 9, the heat engine further comprising a return means for returning the pistons from the outer position to the inner position. 13. A solar generator system comprising: (a) a solar collector subsystem having (i) a parabolic mirror, (ii) a plurality of heliostat mirrors positioned to reflect incident sunlight to the parabolic mirror, and (iii) a concentrator lens or a compound parabolic concentrator aligned to receive a reflected light beam from the parabolic mirror, the concentrator lens concentrating the reflected light beam to produce a concentrated solar beam; and (b) a heat engine having (i) a chamber, (ii) a plurality of axially reciprocable opposed piston pairs, each piston having an interior surface facing the chamber and responsive to pressure within the chamber, wherein one piston has a window to admit a concentrated solar beam from the solar collector subsystem and one piston includes an injector that injects a fluid droplet into the chamber, (iii) an electric generator associated with each piston such that electricity is generated whenever the pistons reciprocate between an inner position and an outer position; (iv) a return means for returning the pistons from the outer position to the inner position, and (v) an exhaust vent, wherein the exhaust vent opens whenever at least one pair of pistons are in the outer position; and (c) a shutter assembly having a selectably open/closed slot, wherein the open slot is aligned to admit the concentrated solar beam through the open slot and into the piston window of the heat engine and the closed slot reflects the concentrated solar beam away from the heat engine. 14. The solar generator system of claim 13, wherein the heliostat mirrors are automatically controlled to rotate about a vertical axis and a horizontal axis parallel to a heliostat mirror reflective face. 15. The solar generator system of claim 14, wherein the heliostat mirrors are rotated using a roller bearing having at least two selectably extensible and retractable piezoelectric pawls. 16. The solar generator system of claim 13, wherein the opening of the slot of the shutter assembly is synchronized with the injection of the fluid droplet. 17. The solar generator system of claim 13, wherein the electric generator is a linear generator. 18. A method for converting solar energy into electrical energy, the method comprising the steps: (a) directing incident solar radiation impinging on a plurality of heliostat mirrors to a parabolic mirror; (b) reflecting a light beam from the parabolic mirror to a concentrator lens or compound parabolic device; (c) concentrating the light beam to a concentrated beam; (d) directing the concentrated beam into a chamber of a heat engine having a plurality of axially opposed piston pairs, each piston having a surface facing the chamber, wherein one piston has a window to admit the concentrated beam into the chamber and one piston includes an injector; (e) injecting a droplet of working fluid into the chamber; (f) impinging the fluid droplet with the concentrated beam to vaporize the working fluid in the chamber; (g) reciprocating the pistons in response to the working fluid vapor; and (h) generating electricity by a set of generators associated with the reciprocating pistons. 19. The method of claim 18, further comprising the step of passing the concentrated beam through a selectably open/closed shutter wherein the open shutter is aligned with the piston window. 20. The method of claim 18, wherein the step of directing the concentrated beam is synchronized with the step of injecting a droplet of working fluid into the chamber.
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