JP2001099051A - External combustion engine utilizing thermal expansion and contraction of material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clean power gentle to the environment without using any fuel by utilizing an external temperature difference of sunlight, ground heat, waste heat or the like. SOLUTION: This engine comprises a cooling part and a heating part, and a bimetal material and a thermal expansible and contractible material such as metal are alternately heated and cooled thereby to provide a power by the thermal expansion and contraction of the bimetal material and the thermal expansible and contractible material such as metal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for obtaining power using a bimetal portion or a heat-expandable member which expands and contracts due to a temperature difference.

[0002]

2. Description of the Related Art Conventionally, as internal combustion engines for extracting power, there are gasoline engines and diesel engines mainly used for automobiles, emergency power supplies, and the like.
Examples of the external combustion engine include a steam engine and a Stirling engine.

[0003]

A heat conversion engine generally includes an internal combustion engine. However, in order to generate waste heat, the heat efficiency is poor and a difference in external temperature such as sunlight, geothermal heat, and waste heat is used. There is a problem that it is difficult to do. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the related art, and has as its object to provide a mechanism that can obtain environmentally-friendly clean power by using a heat source such as sunlight, geothermal heat, and waste heat.

[0004]

An apparatus for attaining the above object comprises a high-temperature section, a low-temperature section having a gap with the high-temperature section, and a high-temperature section having at least one portion fixed to the gap. A bimetal part interposed between the part and the low-temperature part, a crankshaft part attached to a movable part of the bimetal part, and a rotation drive part connected to the crankshaft part. A high-temperature portion, a low-temperature portion facing the high-temperature portion with an interval portion, and a thermally expandable member interposed between the high-temperature portion and the low-temperature portion with both longitudinal edges or peripheral portions fixed to the interval portion. And a crankshaft portion attached to the movable portion of the thermally expandable member, and a rotation drive portion connected to the crankshaft portion. Furthermore, a high-temperature portion, a low-temperature portion facing the high-temperature portion with a certain interval between the high-temperature portion and the high-temperature portion and the low-temperature portion by fixing both sides or the periphery of the gap to the movable arm. And an interposed elastic part.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments according to the present invention will be described below with reference to the drawings. First, a first embodiment of the device according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the bimetal part 4 is
At least one portion is fixed and interposed in the space 2 between the first and second low-temperature portions 3, the base end of the rod is fixed and the tip is a free end, and the free end is a movable portion 4 a It becomes what. Next, the bimetal portion 4 is a well-known one in which two metals having different coefficients of thermal expansion are laminated and bonded by means of welding or the like, or a magnetic metal having a small coefficient of thermal expansion and a non-magnetic metal having a large coefficient of thermal expansion. By melting and cooling while applying magnetic force to one side, the magnetic metal may be biased to one side and the non-magnetic metal may be biased to the other side.
A metal having a large coefficient of thermal expansion greatly expands, and a metal having a small coefficient of thermal expansion has little expansion, and the bimetal portion 4 made of two metals having different coefficients of thermal expansion is bent.
Further, one end of the crankshaft 5 is swingably attached to the movable portion 4a, and the other end of the crankshaft 5 is provided with a rotary plate 6a of the rotary drive 6 for taking out a rotary motion. The shaft is rotatably attached to the eccentric position. That is, the principle of the driving device using the bimetal according to the present invention will be described. The one shown in FIG. 1A shows a state before starting, and the bimetal part 4 is composed of the upper high temperature part 1 and the lower low temperature part 3. The bimetal portion 4 is provided with a metal having a high coefficient of thermal expansion above and a metal having a small coefficient of thermal expansion below the bimetal portion 4 and is to be heated. As a result, as shown in FIG. 2B, the bimetal portion 4 bends to the vicinity of the low-temperature portion 3 below, and the movable portion 4a moves.
As shown in FIG. 2C, the movable portion 4a of the bimetal portion 4 bends and moves to the vicinity of the high-temperature portion 1 above. The movable portion 4a of the bimetal portion 4 is heated again by the high-temperature portion 1. 4a reciprocates by bending and moving to the vicinity of the low temperature section 3. This movable part 4
The reciprocating motion of the crankshaft 5 connects the movable portion 4a and the rotary drive portion 6 with the reciprocating motion of the crankshaft a. One end of the crankshaft 5 swings freely with the movable portion 4a. The reciprocating motion of the movable portion 4a of the bimetal portion 4 is rotatably mounted on the eccentric position of the rotary plate 6a, and the reciprocating motion of the movable portion 4a of the bimetal portion 4 is indicated by the arrow of the rotary plate 6a. This is a rotary motion, in which rotational energy is taken out by a rotating shaft 6b of a rotating plate 6a.
Next, as shown in FIG. 2, a high-temperature portion 1 and a low-temperature portion 3 are provided with a space portion 2 on both sides of a bimetal portion 4, and the high-temperature portion 1 has a high-temperature portion magnetic material 1a. And a fluid magnetic material is adhered to the outer periphery of the high temperature part magnetic body 1a, and the high temperature part fins 1b are arranged outside the high temperature part magnetic body 1a. And a flowable magnetic material is attached to the outer periphery of the low-temperature portion magnetic body 3a, and the low-temperature portion fins 3b are provided outside thereof.
The fluid magnetic material is obtained by applying oil to particles of a magnetic material and fluidizing the fluid magnetic material. When the fluid magnetic material is heated or cooled, the fluid magnetic material adheres to the outer periphery of the high temperature part magnetic body 1a and the low temperature part magnetic body 3a while convection occurs. Thus, the efficiency of heat conduction to the bimetal portion 4 is improved. Further, heat conduction fins are provided on both sides of the bimetal portion 4 in order to increase the surface area and enhance the heat conduction. In addition, as shown in FIG. 3, the high-temperature portion 1, the thermally expandable member 4, and the low-temperature portion 3 each formed in a substantially concave shape are stacked, and each has a spacing portion 2 at the center. One end of the crankshaft portion 5 is fixed at the center as a movable portion 4a, and the other end is axially attached to the center of the rotary plate 6a of the rotary drive portion 6. It is. Then, the high-temperature portion 1 is arranged on the lower side, the low-temperature portion 3 is arranged on the upper side, and copper having a large coefficient of thermal expansion
FIG. 4A shows a state before starting, and a heat-expandable member is provided at the center of the space 2 between the high-temperature section 1 and the low-temperature section 3. 4
In this case, the position of the other end of the crankshaft portion 5 attached to the rotary plate 6a is located on the right side of the rotary shaft 6b in the illustrated case. Next, FIG. 2B shows a state in which the movable portion 4a is approaching the high temperature portion 1 and is heated after being cooled, and the crankshaft portion 5 has moved downward. The rotary plate 6a of the rotary drive unit 6 rotates in the direction shown by the arrow. Next, what is illustrated in (C) shows a state in which the heating is performed by the high-temperature section 1 and the expanded state after the heating. The rotating plate 6a of the rotary drive unit 6 further rotates in the direction shown by the arrow due to this movement. Further, what is shown in FIG. 3D represents a state in which the heat is generated by the high-temperature portion 1 and expanded after the heating. The movable portion 4a of the heat-expandable member 4 moves from the high-tone portion 1 to the low-temperature portion 3. Which is in close proximity to the low-temperature section 3 and is cooled for the next movement, and the rotation plate 6a of the rotary drive section 6 is turned upward by the movement. It is. Further, although not shown, when the heat-expandable member 4 is formed in a cup shape and the bottom portion is a movable portion 4a, the periphery of the heat-expandable member 4 can be fixed. The other embodiment shown in FIG. 3 can also be implemented by using the bimetal part 4 instead of the thermally expandable member 4. As described above, the movable portion 4 a of the bimetal portion 4 or the thermally expandable member 4 is formed by the high temperature portion 1 and the low temperature portion 3.
Makes a reciprocating motion, and the reciprocating motion is taken out as a rotary motion by the rotary plate 6a of the rotary drive unit 6. Next, a second embodiment of the device according to the present invention will be described with reference to FIGS. As shown in FIG. 4, the high-temperature portion 1, the low-temperature portion 3 facing the high-temperature portion 1 with an interval at a fixed interval, and movable on both sides or the periphery of the elastic portion 4 at the interval. The movable arm 8 is fixed to an arm 8 and moves about a fulcrum 7 and an extension spring 9 attached to the movable arm 8 is provided. Use metals and alloys. 1A shows a state at the bottom dead center, in which the elastic part 4 is in a state of approaching the high-temperature part 1, and the high-temperature part 1 heats the elastic part 4. Next, FIG. 2B shows a state in which the expansion and contraction portion 4 is extended from the bottom dead center to the top dead center by the tension of the tension spring 9 by being heated by the high temperature portion 1. At this time, the movable arm 8 moves about the fulcrum 7 to apply upward power to the power transmission unit 10. next,
FIG. 4C shows a state in which the expansion and contraction of the telescopic part 4 progresses, the movable parts open each other and reaches the top dead center, and the telescopic part 4 is in a state of approaching the low-temperature part 3. Furthermore, what is illustrated in (D) is:
The elastic part 4 shrinks when cooled by the low-temperature part 3,
The movable part is pulled inward and moves in the direction of bottom dead center. At this time, the movable arm 8 operates around the fulcrum 7 and applies downward power to the power transmission unit 10. Next, as shown in FIG. 5, a mechanism for changing the positions of the high temperature part 1, the low temperature part 3, and the fulcrum 7 is provided. Although not shown in the figure, these can be linked. Further, a function of adjusting the strength of the extension spring 9 may be provided. These have a mechanism for changing the positions of the movable arm 8, the high-temperature section 1, and the low-temperature section 3 in accordance with the cooling and heating temperatures because the amount of expansion of the elastic member 4 due to the temperature difference is different. Further, as shown in FIG. 6, the elastic portion 4 is used to increase the amount of expansion and contraction.
In order to efficiently perform cooling and heating, the elastic member 4 is disposed on the elastic amplification plate 11 between the fixed portions 13 via the rotating body 12, and the force due to the thermal expansion and contraction of the elastic member 4 is efficiently applied to the movable arm 8. A communication device is provided. And
As the thermal energy of the high-temperature section 1 and the low-temperature section 3 of the driving device 6 utilizing the thermal expansion and contraction of the bimetal section 4 or the thermally expandable member 4 of the present invention, in the field, the thermal energy of the high-temperature section 1 is obtained from sunlight. Thus, the heat energy of the low-temperature section 3 can be obtained from seawater, and furthermore, can be obtained from the bonfire and the surrounding atmosphere. In the outer space, the heat energy of the high-temperature section 1 is obtained from direct sunlight. The heat energy of No. 3 can be obtained from the outer space where sunlight is blocked.
As described above, the energy used for the high and low temperatures may be electric energy or natural energy. The obtained power may be connected to a generator or may be directly generated by a ceramic piezoelectric device or the like.
For example, power can be generated using reciprocating motion using a coil and a magnet. According to the above-described configuration, the driving device using thermal expansion and contraction of the present invention can use heat energy of sunlight and bonfire, and can obtain a driving device that is friendly to the global environment. This is an effective invention as a driving source for time, and is a revolutionary and highly practical invention.

[0006]

According to the present invention, a mechanism capable of obtaining power using various heat sources such as sunlight, geothermal heat, and waste heat can be obtained. In addition, power generation and the like can be performed using this mechanism. In addition, environmentally friendly clean power can be obtained because no fuel is required.

[0007]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an example of a driving device using thermal expansion and contraction according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an example of a drive device utilizing thermal expansion and contraction using a fluid magnetic material according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of an example of a driving device using thermal expansion and contraction according to the first embodiment of the present invention.

FIG. 4 is an explanatory view of an example of an apparatus utilizing thermal expansion and contraction in a second embodiment according to the present invention.

FIG. 5 is an explanatory view of an example of an apparatus using thermal expansion and contraction in a second embodiment according to the present invention.

FIG. 6 is an explanatory view showing a heat-expandable member according to a second embodiment of the present invention attached to a telescopic amplification plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... High temperature part 1a ... High temperature part magnetic body 1b ... High temperature part fin 2 ... Space part 3 ... Low temperature part 3a ... Low temperature part magnetic body 3b ... Low temperature part fin 4 ... Bimetal part or thermal expansion member, elastic member 4a ... Movable part 5 ... Crankshaft part 6 ... Rotation driving part 6a ... Rotating plate 6b ... Rotating shaft 7 ... Support point 8 ... Movable arm 9 ... Tension spring 10 ... Power transmission part 11 ... Expansion and amplification plate 12 ... Rotating body 13 ... Fixing part 1 and fixing part 2

Claims (4)

[Claims] 1. A high-temperature portion, a low-temperature portion opposed to the high-temperature portion with a fixed interval, and at least one portion fixed to the interval to form a gap between the high-temperature portion and the low-temperature portion. An apparatus for obtaining power by utilizing thermal expansion and contraction, comprising an interposed bimetal part. 2. A high-temperature section, a low-temperature section opposed to the high-temperature section with a certain interval between the high-temperature section and a high-temperature section and a low-temperature section by fixing both sides or the periphery in the longitudinal direction to the interval. And a heat-expandable member interposed between the heat-expanding member and the heat-expanding member. 3. The apparatus according to claim 1, further comprising a rotation drive unit connected to the bimetal portion or a crankshaft portion attached to a movable portion of the thermally expandable member. A drive device utilizing thermal expansion and contraction characterized by the following. 4. A high-temperature section, a low-temperature section opposed to the high-temperature section with a certain interval between the high-temperature section, and a movable arm that is fixed to the interval at both ends or around the fulcrum. An apparatus for obtaining power by utilizing thermal expansion and contraction, comprising an expansion and contraction section interposed between a high temperature section and a low temperature section.