JP5272266B2 - Light engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical engine capable of obtaining power with high heat efficiency. <P>SOLUTION: When crank angle of a heating cylinder 20A reaches a predetermined crank angle before the top dead center, a control section 19 drives a movable mirror 18A to incline a reflecting surface thereof, and incidence of the sunlight through a window of the heating cylinder 20A is started. At this point, when gas inside a gas sealed chamber is heated by a light absorber and swelled and a piston of the heating cylinder 20 moves toward the bottom dead center, an intermittent mechanism fixes a piston of a cooling cylinder 22A at the top dead center. A crank shaft 14 is rotated by the movement of the piston of the heating cylinder 20A, and output is taken out. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a light engine, and more particularly to a light engine that is driven by incident light from the outside.

  Conventionally, an engine that obtains power by heating a gas using solar heat is known. For example, the air heating tube is heated by converged sunlight, high-temperature and high-pressure air is sent to the hot air chamber of the cylinder, the piston is pushed out, and the crankshaft continues to rotate by the flywheel, and the hot air intake valve and hot air discharge A hot air engine is known in which the valves are alternately opened and closed to keep the crankshaft rotating (Patent Document 1).

Japanese Patent Laid-Open No. 10-306747

  However, the technique described in Patent Document 1 has a problem that heat efficiency is lowered because high-temperature and high-pressure air heated outside the cylinder is sent to the cylinder.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a light engine capable of obtaining power with high thermal efficiency.

Light engine according to the present invention in order to achieve the above object, provided with a window for light incidence from the outside, and a first cylinder formed of a heat insulating material, to the first cylinder of the window side A first gas sealing chamber for sealing gas is defined, a first piston slidably disposed in the first cylinder, and one end connected to the first piston and the other end connected to the first cylinder. The first connecting rod extending to the outside of the first connecting rod and the first gas-filled chamber is provided, absorbs visible light incident from the window, becomes high temperature, transfers heat to the gas, and emits infrared light. A light absorber, a selective reflection film that is provided in an inner region of the window, transmits visible light, and reflects infrared light; a second cylinder formed of a heat dissipation material; and the second cylinder When the second gas sealing chamber for sealing the gas is partitioned A second piston slidably disposed in the second cylinder; a second connecting rod having one end connected to the second piston and the other end extending outside the second cylinder; and the first a communication passage for communicating the second gas container and gas container, when before Symbol first piston is in the first step of moving the bottom dead center direction, the light from the outside through the window first A light incident control means for entering the gas sealing chamber, a crankshaft interlocking with the first connecting rod and the second connecting rod, and a flywheel fixed to the crankshaft; When the gas in the first gas sealing chamber expands due to the incidence of the first piston and the first piston moves in the direction of bottom dead center, the second piston is fixed at top dead center, and the first piston is bottom dead center. As the second step, the first piston is While moving from the dead center toward the top dead center, moving the second piston from the top dead center toward the bottom dead center, the first piston reaches the top dead center, and the second piston is bottom dead. When the point is reached, as a third step, the first piston is moved from top dead center toward bottom dead center, and the second piston is moved from bottom dead center toward top dead center. When the piston reaches bottom dead center and the second piston reaches top dead center, as a fourth step, the first piston is moved from bottom dead center toward top dead center, And a crank mechanism for fixing the two pistons at the top dead center.

  According to the light engine of the present invention, in the first step, the light incident control means causes light from the outside to enter the first gas sealing chamber through the window. At this time, visible light incident from the window is absorbed by the light absorber, becomes high temperature, transfers heat to the gas, emits infrared rays, and heats the gas in the first gas sealing chamber. Further, as a first step, the second piston is fixed at the top dead center when the gas in the first gas sealing chamber expands due to the incidence of light and the first piston moves in the direction of the bottom dead center by the crank mechanism. .

  When the first piston reaches the bottom dead center, the crank mechanism moves the first piston from the bottom dead center toward the top dead center as a second step by the crank mechanism. When the first piston reaches the top dead center and the second piston reaches the bottom dead center, the first piston is moved from the top dead center to the bottom dead center direction. And the second piston is moved from the bottom dead center toward the top dead center.

  When the first piston reaches the bottom dead center and the second piston reaches the top dead center, the crank mechanism moves the first piston from the bottom dead center toward the top dead center as a fourth step. While moving, the second piston is fixed at the top dead center.

  In this way, the light absorber absorbs the visible light incident from the window of the first cylinder, becomes high temperature, transfers heat to the gas, emits infrared rays, and heats the gas in the first gas sealing chamber. Since the first piston moves in the direction of the bottom dead center, power can be obtained with high thermal efficiency.

  The light engine of the present invention may further include a cooling fin provided outside the second gas sealing chamber. Thereby, the gas in the second gas filled chamber can be cooled.

  The light engine of the present invention may further include a water cooling unit that is provided outside the second gas sealing chamber and cools the second gas sealing chamber. Thereby, the gas in the second gas filled chamber can be cooled.

  The light engine may further include a heat transfer fin provided inside the second gas enclosure. Thereby, the gas in the second gas filled chamber can be cooled at a higher speed.

  The gas may be a gas that absorbs infrared light. As a result, the gas in the first gas enclosure can be heated more efficiently.

  Further, the gas may be any one of carbon dioxide gas, chlorine gas, and nitric oxide.

The first cylinder and the second cylinder are four sets of the first cylinder and the second cylinder, and the crankshaft has a crankshaft so that the processes in the four sets of the first cylinder and the second cylinder are different from each other. Interlocking with the first connecting rod and the second connecting rod of the four sets of the first cylinder and the second cylinder, the light incident control means is placed in the first gas sealing chamber of any of the first cylinders which is the first step. it can be made incident light from the outside and through the window. Accordingly, since any pair of the first cylinder and the second cylinder is always in the first step, power can be continuously obtained.

  The light from the outside can be sunlight.

  As described above, according to the light engine of the present invention, the light absorber absorbs the visible light incident from the window of the first cylinder, becomes high temperature, transfers heat to the gas, and radiates infrared rays. By heating the gas in the one gas sealing chamber, the first piston moves in the direction of the bottom dead center, so that it is possible to obtain power with high efficiency.

It is the schematic which shows the structure of the light engine which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the structure of the heating cylinder of the light engine which concerns on the 1st Embodiment of this invention. It is an image figure which shows a light absorber. It is sectional drawing which shows the structure of the cylinder for cooling of the light engine which concerns on the 1st Embodiment of this invention. (A) Image diagram showing states of heating and cooling cylinders in cycle 1, (B) Image diagram showing states of heating and cooling cylinders in cycle 2, (C) Heating cylinder and cooling in cycle 3 It is an image figure which shows the mode of a cylinder, (D) The image figure which shows the mode of the heating cylinder and cooling cylinder in the cycle 3, and (E) The image figure which shows the mode of the heating cylinder and the cooling cylinder in the cycle 4. It is the schematic which shows the structure of the light engine which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a case where the present invention is applied to a four-cylinder light engine will be described as an example.

  As shown in FIG. 1, the light engine 10 according to the first embodiment is interlocked with a cylinder group 12 composed of two cylinders for each of the four cylinders and a connecting rod extending from the cylinder group 12. Connected crankshaft 14, flywheel 16 fixed to crankshaft 14, movable mirror group 18 that reflects the converged sunlight, and control unit 19 that drives movable mirror group 18. Yes. The crankshaft 14 and the flywheel 16 are examples of the crank mechanism of the present invention. The movable mirror group 18 and the control unit 19 are an example of the light incidence control means of the present invention.

  The cylinder group 12 includes four sets of heating cylinders 20A to 20D and cooling cylinders 22A to 22D, and one set of the heating cylinder 20 and the cooling cylinder 22 corresponds to one cylinder.

  As shown in FIG. 2, each of the heating cylinders 20 </ b> A to 20 </ b> D includes a heat insulating cylinder 23 formed of a heat insulating material, and a window 24 for allowing light to enter, provided in an opening on the upper surface of the heat insulating cylinder 23. It has. A selective reflection film 26 that transmits visible light and reflects infrared light is provided in a region inside the window 24. The heating cylinders 20 </ b> A to 20 </ b> D have a window 24, define a gas sealing chamber 30 for sealing gas in the heat insulating cylinder 23, and are slidably disposed in the heat insulating cylinder 23. 28, a light absorber 32 that is provided in the gas sealing chamber 30 and absorbs visible light incident from the window 24, becomes high temperature, transfers heat to the gas, and radiates infrared light, and one end of the piston 28 A connecting rod 34 which is connected and has the other end extending to the outside of the heat insulating cylinder 23 is provided.

  As the gas sealed in the heating cylinders 20A to 20D, a gas that easily absorbs infrared light (for example, carbon dioxide gas) or a gas that easily absorbs visible light (for example, chlorine gas, nitrogen dioxide) is used. . Moreover, it is preferable that gas is pressurized and sealed so that a large output can be obtained.

  The heat insulating cylinder 23 is formed of, for example, a vacuum double layer of stainless steel, and the inner surface is vapor-deposited with aluminum so as to reflect infrared light. By the heat insulating cylinder 23 and the selective reflection film 26, the infrared light emitted by the light absorber 32 is confined in the mirror box and efficiently absorbed by the gas.

  The light absorber 32 is composed of an aluminum thin-tube radiator that adsorbs carbon, and is connected to the piston 28 and floated from the piston 28. As shown in FIG. 3, the light absorber 32 is installed such that a radiator that forms a narrow gap is attached obliquely to the optical path, and can efficiently absorb light by multiple reflection.

  As shown in FIG. 4, each of the cooling cylinders 22 </ b> A to 22 </ b> D includes a heat transfer cylinder 36 formed of a member having high thermal conductivity, and a gas sealing chamber 38 for sealing the gas in the heat transfer cylinder 36. A piston 40 that is slidably disposed in the heat transfer cylinder 36, and a heat transfer fin 42 that is provided in the gas sealing chamber 38 and cools the gas in the gas sealing chamber 38; One end is connected to the piston 40 and the other end is provided with a connecting rod 44 extending to the outside of the heat transfer cylinder 36.

  The heat transfer cylinder 36 is made of, for example, copper or aluminum. The heat transfer fins 42 are made of a radiator made of aluminum or copper, and are cooled when the gas passes through the heat transfer fins 42. The heat transfer fins 42 are connected to the heat transfer cylinder 36 and installed.

  Cooling fins 46 are provided outside the gas sealing chamber 38 of the heat transfer cylinder 36, and the gas in the gas sealing chamber 38 is cooled via the heat transfer cylinder 36. In addition, you may use the water cooling mechanism which water-cools the gas enclosure chamber 38 via the heat transfer cylinder 36 instead of a cooling fin.

  For each pair of the heating cylinders 20A to 20D and the cooling cylinders 22A to 22D, communication passages 48A to 48D for communicating the gas sealing chamber 30 and the gas sealing chamber 38 are provided.

  The connecting rod 34 extending from the heating cylinders 20 </ b> A to 20 </ b> D is connected to the crankshaft 14 so that the crankshaft 14 rotates in conjunction with the reciprocating motion of the piston 28. The connecting rod 44 extending from the cooling cylinders 22A to 22D is connected to the crankshaft 14 so that the crankshaft 14 rotates in conjunction with the reciprocating motion of the piston 40. It is connected to the crankshaft 14 via an intermittent mechanism so as to be intermittent (intermittent movement that pauses for one reciprocation after one reciprocation).

  An object to be driven by the light engine 10 is driven by the rotational torque of the crankshaft 14.

  The connecting rod 34 is connected to the crankshaft 14 so that the operation of the piston 28 with the adjacent cylinder is shifted by one cycle between the heating cylinders 20A to 20D, and adjacent to the cooling cylinders 22A to 22D. The connecting rod 44 is connected to the crankshaft 14 so that the operation of the piston 40 with the cylinder is shifted by one cycle.

  Further, in each pair of the heating cylinders 20A to 20D and the cooling cylinders 22A to 22D, the connecting rods 34 and 44 are connected to the crankshaft so that the operations of the pistons 28 and 40 are in opposite phases (shifted by 180 °). 14. As a result, the operation cycle consisting of four cycles is always different between the pair of the heating cylinders 20A to 20D and the cooling cylinders 22A to 22D.

  Crank angle sensors 50A to 50D for detecting the crank angle (BTDC) before the top dead center of the heating cylinders 20A to 20D are provided in the vicinity of the crankshaft 14, respectively.

  The movable mirror group 18 is composed of movable mirrors 18A to 18D that reflect sunlight converged by, for example, a condensing hyperboloid mirror (not shown) and enter the windows 24 of the heating cylinders 20A to 20D. The The reflecting surfaces of the movable mirrors 18A to 18D are not positioned on the light beam into which the converged sunlight is incident in the reference state. When driven from the reference state, the reflecting surfaces of the movable mirrors 18A to 18D are The converged sunlight enters a state inclined with respect to the incident direction on the incident light, reflects the sunlight, and enters the windows 24 of the heating cylinders 20A to 20D.

  The control unit 19 includes a CPU, a ROM, and a RAM. Based on the crank angle before top dead center output from the crank angle sensors 50A to 50D, the control unit 19 in the incident direction on a light beam on which converged sunlight enters. On the other hand, any one of the movable mirrors 18A to 18D is driven so as to incline the reflection surface, and sunlight is reflected to be incident on any window 24 of the heating cylinders 20A to 20D.

  Next, the operation of one set of heating cylinder 20A and cooling cylinder 22A (first cylinder) will be described. A case where the crankshaft 14 is rotating will be described.

  First, as cycle 1, as shown in FIG. 5A, the piston 28 of the heating cylinder 20A is moved from the bottom dead center (BDC) to the top dead center (TDC) by the inertia of the crankshaft 14. The piston 40 of the cooling cylinder 22A is fixed at the top dead center by the intermittent mechanism. Thereby, the gas in the gas sealing chamber 30 of the heating cylinder 20A is compressed.

  When the crank angle of the heating cylinder 20A reaches a predetermined crank angle before top dead center in cycle 1, the control unit 19 determines that cycle 2 is started, and the reflecting surface of the movable mirror 18A is inclined. And the incidence of sunlight through the window 24 is started. At this time, as cycle 2, as shown in FIG. 5B, when the gas in the gas enclosure 30 is heated and expanded by the light absorber 32 and the piston 28 moves in the direction of the bottom dead center, the intermittent mechanism Then, the piston 40 of the cooling cylinder 22A is fixed at the top dead center. As a result, the crankshaft 14 is driven to rotate and the output is taken out.

  When the crank angle reaches the bottom dead center in cycle 2, the control unit 19 determines that cycle 2 has ended, and the reflecting surface of the movable mirror 18A is driven so as to be in the reference state (horizontal state). Incident of sunlight through 24 is completed. At this time, since the crank angle of the adjacent heating cylinder 20B reaches the predetermined crank angle before top dead center, the control unit 19 drives the adjacent movable mirror 18B so that the reflecting surface is inclined, and the window 24 is moved. The incident sunlight is started.

  Further, when the piston 28 reaches the bottom dead center in the cycle 2, as shown in FIG. 5C, the piston 28 of the heating cylinder 20A is moved to the bottom dead center due to the inertia of the crankshaft 14 as the cycle 3. The piston 40 of the cooling cylinder 22A is moved from the top dead center toward the bottom dead center. As a result, the gas in the gas sealing chamber 30 of the heating cylinder 20A is pushed out (exhausted) through the communication passage 48A, and the gas is taken into (intaken into) the gas sealing chamber 38 of the cooling cylinder 22A. The gas is cooled.

  As shown in FIG. 5D, when the piston 28 reaches the top dead center and the piston 40 reaches the bottom dead center according to the cycle 3, the cycle 4 is caused by the inertia of the crankshaft 14 as shown in FIG. As shown in FIG. 5E, the piston 28 of the heating cylinder 20A is moved from the top dead center toward the bottom dead center, and the piston 40 of the cooling cylinder 22A is moved from the bottom dead center toward the top dead center. As a result, while the gas is cooled, the gas in the gas sealing chamber 38 of the cooling cylinder 22A is pushed out (exhausted) through the communication passage 48A, and the gas enters the gas sealing chamber 30 of the heating cylinder 20A. Taken in (inhaled).

  When the piston 28 reaches the bottom dead center by the cycle 4 and the piston 40 reaches the top dead center, the piston 28 is moved again from the bottom dead center toward the top dead center as the cycle 1, The piston 40 is fixed at the top dead center.

  As described above, in the heating cylinder 20A and the cooling cylinder 22A, which are the first cylinders, the operations of cycle 1 to cycle 4 are repeated. Cycle 1 is an example of the fourth step of the present invention, and cycle 2 is an example of the first step of the present invention. Cycle 3 is an example of the second step of the present invention, and cycle 4 is an example of the third step of the present invention.

  The pair of heating cylinders 20B and cooling cylinders 22B, which are the second cylinders, operate in the same manner with a delay of one cycle with respect to the operation of the first cylinder (cycle 2 is cycle 1 described above, and cycle 3 is The cycle 2 is operated as described above, the cycle 4 is operated as the cycle 3 described above, and the cycle 1 is operated as the cycle 4 described above). The pair of heating cylinders 20C and cooling cylinders 22C, which are the third cylinders, operate in the same manner with a delay of two cycles with respect to the operation of the first cylinder (cycle 3 is cycle 1 described above, and cycle 4 is The cycle 2 is operated as described above, the cycle 1 is operated as the cycle 3 described above, and the cycle 2 is operated as the cycle 4 described above). The pair of heating cylinders 20D and cooling cylinders 22D, which are the fourth cylinders, operate in the same manner with a delay of three cycles with respect to the operation of the first cylinder (cycle 4 is the cycle 1 described above, and cycle 1 is The cycle 2 is operated as described above, the cycle 2 is operated as the cycle 3 described above, and the cycle 3 is operated as the cycle 4 described above).

  The operation cycle of the first cylinder to the fourth cylinder is shown in Table 1 below.

  By operating as described above, the gas is always heated in the heating cylinder of any of the cylinders (the heating cylinder in the cycle 2 described above), and the crankshaft 14 is driven to rotate. An output is obtained from the rotational torque of the shaft 14.

  As described above, according to the light engine according to the first embodiment, the light absorber that converts light into heat absorbs the visible light incident from the window of the heating cylinder and becomes a high temperature gas. Since the piston moves in the direction of the bottom dead center by transferring heat to the infrared ray and directly radiating the gas in the gas-filled chamber, power can be obtained with high thermal efficiency.

  Also, in a four-cylinder, four-cycle light engine, a heating cycle is performed in any cylinder, and the drive of the movable mirror is controlled so that sunlight is incident on the heating cylinder, which is the heating cycle, in accordance with the timing. Thus, it is possible to always heat with any one of the heating cylinders and to always obtain power.

  Moreover, since the selective reflection film is attached inside the window of the heating cylinder to reflect the infrared light, heat loss from the heating cylinder can be prevented, and a decrease in thermal efficiency can be prevented.

  Further, by providing the cooling cylinder with the cooling fin and the heat transfer fin, the gas in the gas filled chamber of the cooling cylinder can be rapidly cooled.

  Next, a light engine according to a second embodiment will be described. In addition, about the part which becomes the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The light engine 210 of the second embodiment is a four-cycle, one-cylinder engine, and includes a pair of heating cylinders 20 and cooling cylinders 22 as shown in FIG. Connecting rods 34 and 44 extending from the cylinder 22 are connected to the crankshaft 14.

  The configuration and operation of the pair of heating cylinders 20 and cooling cylinders 22 are the same as those in the first embodiment, and the gas is heated by the heating cylinders 20 in any one of the four cycles. Is rotated, and an output is obtained from the rotational torque of the crankshaft 14.

  In the above embodiment, the case of one cylinder has been described as an example. However, the present invention is not limited to this, and an engine having two or more cylinders may be used. In this case, what is necessary is just to comprise using 2 or more sets of heating cylinders and cooling cylinders.

  In the first embodiment and the second embodiment described above, the case where the sunlight from the outside is converged by the converging hyperboloid mirror and incident on the movable mirror group is described as an example. However, the present invention is not limited to this, and the sunlight may be converged and converged on the movable mirror group by another conventionally known method.

DESCRIPTION OF SYMBOLS 10,210 Light engine 12 Cylinder group 14 Crankshaft 16 Flywheel 18A-18D Movable mirror 18 Movable mirror group 19 Control part 20, 20A-20D Cylinder 22, 22A-22D Cooling cylinder 23 Heat insulation cylinder 24 Window 26 Selective reflection Membranes 28 and 40 Pistons 30 and 38 Gas sealing chamber 32 Light absorbers 34 and 44 Connecting rod 36 Heat transfer cylinder 42 Heat transfer fin 46 Cooling fins 48A to 48D Communication path

Claims (8)

A first cylinder provided with a window for allowing light from the outside to enter, and formed of a heat insulating material;
Together defining a first gas container for enclosing a gas to the window side of the first cylinder, a first piston disposed slidably within said first cylinder,
A first connecting rod having one end connected to the first piston and the other end extending to the outside of the first cylinder;
A light absorber that is provided in the first gas-filled chamber and absorbs visible light incident from the window, transfers heat to the gas at a high temperature, and emits infrared light;
A selective reflection film that is provided in a region inside the window, transmits visible light, and reflects infrared light;
A second cylinder formed of heat dissipating material;
A second gas sealing chamber for sealing a gas in the second cylinder, and a second piston slidably disposed in the second cylinder;
A second connecting rod having one end connected to the second piston and the other end extending to the outside of the second cylinder;
A communication path communicating the first gas sealing chamber and the second gas sealing chamber;
When prior Symbol first piston is in the first step of moving the bottom dead center direction, the light entrance control means through which light enters from the outside into the first gas-filled chamber through said window,
A crankshaft interlocking with the first connecting rod and the second connecting rod, and a flywheel fixed to the crankshaft are provided. As the first step, the gas in the first gas sealing chamber expands by the incidence of light. Then, when the first piston moves toward the bottom dead center, the second piston is fixed at the top dead center, and when the first piston reaches the bottom dead center, The first piston is moved from the bottom dead center toward the top dead center, the second piston is moved from the top dead center toward the bottom dead center, the first piston reaches the top dead center, and the second piston is moved. When the piston reaches the bottom dead center, as a third step, the first piston is moved from the top dead center toward the bottom dead center, and the second piston is moved from the bottom dead center toward the top dead center. The first piston reaches bottom dead center, and When the second piston reaches top dead center, as a fourth step, the first piston is moved from bottom dead center toward top dead center, and the second piston is fixed at top dead center. When,
Including light engine.   The light engine according to claim 1, further comprising cooling fins provided outside the second gas sealing chamber.   2. The light engine according to claim 1, further comprising a water cooling unit provided outside the second gas sealing chamber and cooling the second gas sealing chamber with water.   The light engine according to claim 1, further comprising a heat transfer fin provided inside the second gas sealing chamber.   The light engine according to claim 1, wherein the gas is a gas that absorbs infrared light.   The light engine according to claim 5, wherein the gas is any one of carbon dioxide gas, chlorine gas, and nitric oxide. The first cylinder and the second cylinder are four sets of the first cylinder and the second cylinder,
The crank mechanism includes four sets of the first cylinder and the second cylinder, the first connecting rod, and the second cylinder so that the processes in the four sets of the first cylinder and the second cylinder are different from each other. Interlocked with the second connecting rod,
The light incident control means, the first gas-filled chamber of one of said first cylinder to be the first step, of claims 1 to 6, light is incident from the outside and through the window The light engine according to any one of the preceding claims.   The light engine according to claim 1, wherein the light from the outside is sunlight.

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