• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A thermal energy scavenger assembly including a plurality of temperature-sensitive wires made of material which exhibits shape memory due to a thermoelastic, martensitic phase transformation. The wires are placed in tension between fixed and movable plates which are, in turn, supported by a pair of wheels which are rotatably supported by a housing for rotation about a central axis. A pair of upper and lower cams are fixed to the housing and cam followers react with the respective cams. Each cam transmits forces through a pair of hydraulic pistons. One of the pistons is connected to a movable plate to which one end of the wires are connected whereby a stress is applied to the wires to strain the wires during a first phase and whereby the cam responds to the unstraining of the wires during a second phase. A housing defines fluid compartments through which hot and cold fluid passes and flows radially through the wires whereby the wires become unstrained and shorten in length when subjected to the hot fluid for causing a reaction between the cam followers and the cams to effect rotation of the wheels about the central axis of the assembly, which rotation of the wheels is extracted through beveled gearing. The wires are grouped into a plurality of independent modules with each module having a movable plate, a fixed plate and the associated hydraulic pistons and cam follower. The hydraulic pistons and cam follower of a module are disposed at ends of the wires opposite from the ends of the wires at which the same components of the next adjacent modules are disposed so that the cam followers of alternate modules react with one of the cams and the remaining cam followers of the remaining modules react with the other cam. There is also included stress limiting means in the form of coil springs associated with alternate ends of the wires for limiting the stress or strain in the wires.
    公开号:SU1194290A3
    申请号:SU792774452
    申请日:1979-06-08
    公开日:1985-11-23
    发明作者:А.Хохштейн Питер
    申请人:Питер А.Хохштейн (US)；
    IPC主号:
    专利说明:

    2. The device according to claim 1, characterized in that the voltage limiter is made in the form of an elastic element that is installed with the possibility of free running when the temperature-sensitive element is reciprocally moved and the reciprocal action unit.
    3. The device according to paragraphs. 1 and 2, characterized in that the resilient element is located between the temperature-sensitive element and the support element on which the temperature-sensitive element is mounted.
    4. Device on PP. 2 and 3, in that the elastic element is made in the form of a coil spring located around one end of the temperature-sensitive element to interact with the latter when it is compressed.
    5. A device according to claim 4, characterized in that the temperature-sensitive element is made up of a plurality of wires, each of which is provided with an elastic element in the form of a helical spring located around its one end.
    The invention relates to the field of converting thermal energy into mechanical energy, and specifically to devices in which thermal deformations of thermosensitive elements are used to obtain work from a material that has shape memory properties by means of a thermoelastic transformation of its martensitic phase.
    The aim of the invention is to increase reliability.
    Achieving this goal ensures, with due to the limitation of the voltage in the thermosensitive element, when returning it to an unresolved state during arsenal.
    FIG. 1 shows the described device, a general view; in fig. 2 is a view A of FIG. one; in fig. 3 is a sectional view BB in FIG. 2; in fig. 4 shows CC in FIG. 3; in fig. 5, view A in FIG. 1 with partial digging in the cross section; in fig. 6 shows the D-D in FIG. 3; in fig. 7 -. Section EE in FIG. 6; in fig. 8 enlarged fragment of one of the plates to which the temperature-sensitive elements are attached; in fig. 9 is an enlarged fragment of the section with a partial cut-out along the heat-sensitive elements, passing between the plates, with a voltage limiter in the form of springs; in fig. 10 is a perspective view of the described device in cross section with partial tearing.
    The device for converting thermal energy contains support 1 and, according to
    at least one thermosensitive element 2 made of a material that has the property of memorizing the shape by means of a thermoelastic 3 transformation of the martensitic phase, for example, of nitinol or copper-aluminum-nickel, copper-zinc, iron-platinum, gold-cadmium alloy. Movingly relative to the temperature-sensitive element 1, a reverse-action unit 3 is installed to apply a voltage to the element 2, deform the element 2 at the first relatively low temperature and restore the force from the element 2 when it returns to the unextended state at the second relatively high temperature. . Between the reverse-acting unit 3 and the temperature-sensitive element 2 at one end of the temperature-sensitive element 2, with the possibility of interaction with the latter, the voltage limiter 4 is located. Node 3 reverse action mounted on
    5 to support 1, the temperature sensitive element 2 being connected to the reverse acting unit 3 through voltage suppressor 4.
    Voltage limiter 4 is made in the form of an idling unit, which in the described embodiment of the device is an elastic element 5, installed with the possibility of free running when the thermal-sensitive element 2 and the reverse-action unit 3 move each other.
    J
    The temperature-sensitive element 2 is mounted on the supporting element 6, and the elastic element 5 is located between the thermal-sensitive element 2 and the supporting element 6.
    The elastic element 5 is made in the form of a coil spring 7, located around one end of the thermosensitive element 2, to interact with the latter when it is compressed.
    The thermosensitive element 2 is made in the form of a plurality of wires 8, each of which is provided with an elastic element 5 in the form of a coil spring 7 located around one of its ends.
     Voltage limiter 4 may be made differently than in the form of springs 7, for example, in the form of a safety fractional clutch with an adjustable friction torque limit, or in the form of another idling device.
    To the inner wall 10 of the support 1 of the concentric axis 9 of the device, the sleeves 11 and 12 are displaced along this axis 9 relative to each other. At the inner ends of the sleeves 11 and 12, the cams 13 and 14 which form the opposite action 3 have cylindrical outer surfaces 15 and 16, respectively. , and on the outer ends of the sleeves 11 and 12 are made internal bearing sockets 17 and 18.
    The thermosensitive elements 2 in the form of wires 8 are mounted on the supporting element 6 in the form of a rotor 19, which, in turn, is mounted on the support 1 rotatably on bearings 17 and 18.
    The rotor 19 comprises an upper wheel 20 consisting of a sleeve 21 and a rim.
    22 connected knitting needles
    23, and a lower wheel 24, consisting
    from the sleeve 25 and the rim 26 interconnected by spokes 27. The upper 20 and lower 24 wheels are offset one relative to another along the axis 9 of the device. A ring 29 is attached to the upper wheel 20 by bolts 28, which is an outer seat of the support 17, and a ring 31 is attached to the lower wheel 24 by means of bolts 30, which is an outer bearing socket 18. The ring 31 has a flange attached to it seal 32. Mezvdu ko-942904
    Forest 20 and the sleeve 11, as well as between the wheel 24 and the sleeve 12 are the sealing nodes 33.
    On the rotor 19, there are several independent modules 34 arranged circumferentially around the axis 9, two of which are shown in FIG. 4. Each of the modules 34 contains a group located parallel to axis 9
    fO wires 8 connected by a hydraulic transmission 35 with a radial pusher 36 interacting with one of the cams 13 or 14. Each hydraulic transmission
    15 35 contains a hydraulic chamber 37 located in one of the rim 22 or 26 of wheels 20 or 24 with a piston 38 movably mounted in the chamber 37, limiting the internal 20 volume 39 of chamber 37, as well as a hydraulic chamber 40 located in one of the rims 22 or 26 , with a piston 41 movably mounted in the chamber 40, limiting the internal 25 of the SRI the volume 42 of the chamber 40. The chambers 40 are closed by plugs 43. The internal volume 39 of the chamber 37 is communicated via a hydraulic line (not shown) with the internal volume 42 of the chamber 40.
    Hydraulic transmission 35 adjacent modules 34 are located in different rims 22 and 26, respectively, of the upper 20 and lower 24 wheels of the rotor 19. Pushers 36 of modules 34, hydraulic transmissions 35 of which are located in the rim 22 of the upper wheel, interact with the upper cam 13, and pushers 36 of modules 34 whose hydraulic gears 35 are located in the rim 26 of the lower wheel 24 interact with the lower cam 14.
    Each of. modules 34 contains a plate 44 attached to the rim
     22 or 26 of one of the wheels 20 or 24, and a plate 45 movably connected to the rim 26 or 22 of the other wheel 24 or 20. Each module 34 also contains a plurality of wires 8,
     installed between plates 44 and
    45 and connected to their ends with the plates 44 and 45. The plates 44 are attached to the rims 22 and 26 with bolts
    46 with nuts 47. Bolts 46 pass 55 through holes 48 in plate 44
    (Fig. 8) and through one of the rims 22 or 26, to which the plate 44 is attached.
    51
    The guide pins 49, which pass through the rim 22 or 26 of one of the wheel IDs 20 or 24, are attached to the movable plates 45 with their ends. Each guide pin 49 is slidable in the hubs 50 of the bearing material. At the opposite ends of the pins 49, nuts 51 are installed, in which POM01ZI of which pins 49 are attached to brackets 52 with pads 53 and the latter are fastened with threaded fasteners 54 to pistons 38 to create fluid pressure in volume 39 of chamber 37 while shortening wires 8. Each is 1 {41 chamber 40 is connected by a bolt 35 with the end of the rod 56 of the pusher 3.6. The other end of the stem 56 ends with a 6-sleeve sleeve 57, in which a roller 59 is mounted for rotation with the aid of a bolt 58, which interacts with a cylindrical surface 15 or 16 of one of the cams 13 or 14. The guide bars 60, grasping the opposite side surfaces of one of the cams 13 or 14. The rods 56 are mounted in bearings 61 with possible / TU sliding in the radial direction. , . .;,; - -, ..,.,
    Porsche 38 of chamber 37 has a large area, crtorium is exposed to a hydraulic transmission fluid of 35 pm. Piston 41 of chamber 40. Pistons 38 are mounted to move parallel to the central axis 9 of the device, and pistons 41 are radially moveable.
    The inner space of the support 1, limited by an inner wall 10 running along an arc around the central axis 9, is divided by four radial walls 62 into four chambers, two of which 63 1 are hot chambers, and the other two are 64 chambers, Hot chambers 63 are diametrically opposed and each of them comes to cold chambers 64, - which, in turn, are diametrically opposed to each other. Each of the chambers 63 and 64 is externally bounded by the outer part 65 of the wall 10, which are parallel in it.
    dial slots 66. Bearing 1 has an outer wall 67 circumferentially circumscribed about axis 9 and enclosing the rotor 19. Each of the chambers 63 5 and 64 is connected to two upper and lower inlets 68 in the inner wall 10 of the support 1 and one radial, made in the outer wall 67 of the support 1 with the inlet port 69. The inlet apertures 68 connected to the hot chambers 63 are designed to supply hot fluid and the inlet
     openings 68 connected to cold chambers 64 are designed to supply cold fluid (for example, water). The fluid can also be a gas or gases, or a combination of liquid and gas. For removal. mutual arrangement of the inlet 68; and 69 openings of the holes are conventionally rendered in FIG. 3 to section plane BB in FIG. 2
    In the protruding part 70 of the support 1, 25 is mounted rotatably on the supports 71, an output shaft 72 connected to the output flange 73. On the sleeve 21 of the upper wheel 20 is fixed by bolts 74 a conical gear wheel 75 which is in internal engagement with the conical gear. a wheel 76 attached to the end of the output shaft 72 to transmit the rotation of the rotor 19 to the output shaft 72. Each spring 7 at one end interacts with the end of the wire 8 and the other from one of the plates 44 or 45 of the rotor 19. In each of the plates 44 and 45 a plurality of holes 77 77 are machined. In each hole 77 one of the helical coil springs 7 is located. At the bottom of each hole
    77 of each of the plates ± in 44 and 45 is made on the recess 78. To connect the wires 8 and the screw springs 7, a plug 79j of the wire 8 is inserted through the squaws 79 in the upper part of each spring 7. These channels have enlarged recesses 80 at their outer ends. At the ends of the wires 8, enlarged heads 81 are made, which are located in the recesses of 80 samples. 79. In the grooves
    78installed plugs 82, in which 55 are made the same as in traffic jams
    79, through channels with depressions 83 at their outer ends. The ends of the wires 8 are passed through the through channels of the plugs 82 and fixed, with their enlarged heads 81 in the recesses 83 of the plugs 82. Each prulsin 7 is located around the ends of the two wires 8. The wires 8 are passed through the channels in the plates 44 and 45 and then through the corresponding plugs 79 and 82. The plugs 79 and 82 are arranged parallel to the wires 8 and are displaced relative to the adjacent springs 7 in the direction transverse to the axes of the wires 8, so that each stopper 82 overlaps two adjacent springs 7 and each spring 7 overlaps t two plugs 82 (Fig. 8).
    The springs 7 are alternately arranged at the upper and lower ends of the adjacent wires 8 to reduce the area occupied by the wires 8.
    A device for converting thermal energy works as follows.
    The water, heated at the temperature of the thermoelastic transformation of the material of the wires 8, is fed through four four inlet holes 68 into diametrically opposite hot chambers 63, and the water cooled below the temperature of the transformation of the material of the wires 8,:. supplied through the remaining four inlets 68 to cold chambers 64. Water passes through chambers 63 and 64 and then through radial slots 66 and through each group of wires 8 in each module 34 and out of outlet holes 69. Wires 8 connected to the pushers 36, located after the cams of the cams 13 and 14 along the rotation of the rotor 19, in the area of decreasing the distance of the pushers 36 to the central axis 9 of the device, are exposed to relatively warm water coming out of the slots 66 of the outer part 65 of the wall 10 63. Pro the dies 8 are heated to a temperature above the temperature of transformation of their material and are shortened, causing the movable plate 45 and the associated piston 38 to move downward. In this case, the hydraulic transmission fluid 35 is displaced from the internal volume 39 of the chamber 37 into the internal volume 42 of the chamber 40 connected to this chamber 37, as a result of which the piston 41 together with the rod 56 moves
    to axis 9, forcing the roller 59 of the pusher 36 to roll on the surface 15 or 16 of the corresponding cam 13 or 14. As a result of the interaction
    rollers 59 and cams 13 and 14, a circumferential force occurs, under the action of which the rotor 19 rotates clockwise (Fig. 6),
    The wires 8 associated with the pusher
    36, located up to the ridge of the cams 12 and 14 along the rotation of the rotor 19, in the area of increasing the distance of the pushers 36 to the central axis 9 of the device are subjected
    exposed to relatively cold water, with a temperature below the transformation temperature of the wire material 8. As a result, wire 8 becomes relatively soft. Driven by
    the movement of the cams 13 and 14, the pushers 36, connected with the cooled pins, 8, move towards the crests of the cams 13 and 14, forcing the pistons 41 to move to the peripheral part of the chamber 40, approx. yearning for the position shown in fig. 6. As a result, the internal volume 42 of the chamber 40 is reduced, and the hydraulic fluid is
    35 is displaced into the internal volume 39 of the chamber 37, moving the piston 38 of the chamber 37 upward (FIG. 4). This movement of the piston 38 is transmitted through the guide pins 49 of the movable plate 45, which causes the cold wires 8 to stretch and increase their length. To extend the wires 8 in a cold state, less energy is required than is obtained by reducing the wires 8 in a relatively warm state, as a result of which the heat is converted into mechanical energy of rotation of the rotor 19 in the process of restoring a smaller length of the wires 8 when they are heated. Since there are two quadrants
    for each heat and cold fluids passing respectively through the hot 63 and cold 64 chambers, the wires 8 are deformed and
    50 is removed from the deformed state twice during each revolution of the rotor 19.
    Since less force is required to deform the cooled springs,
    55. Springs 7 are chosen in such a way that minimal compression is achieved when wires 8 are deformed and elongated in relatively
    91
    cold state. When wires 8 are heated above the temperature of thermoelastic transformation of their material, a much greater resulting stress occurs, moreover, wires 8 have a lower allowable deformation in the heated state, since the effective modulus of elasticity of the material of wires 8 increases when the transformation temperature is heated. The springs 7 limit the deformations of the wires 8 when they are in a heated state, when
    2
    94290. ten
    the springs 7 are compressed, thereby preventing the stresses in the wires 8 from increasing beyond a predetermined limit, thereby preventing the wires from exceeding the allowable deformation of the wires 8.
    Since the device described is symmetrical with respect to a plane passing diametrically through the ridges fO of the cams 13 and 14, the rotor 19 can rotate in any direction; direction, in cotsfom it will be pre-launched.
    63
    73
    Fi & .З
    (. 0
    权利要求:
    Claims (5)
    [1]
    1. DEVICE FOR TRANSFORMING THERMAL ENERGY, containing a support, at least one thermosensitive element made of a material having the property of shape memorization by thermoelastic transformation of the martensitic phase, a feedback unit movably mounted relative to the thermosensitive element for applying voltage to the element, deformation of the element at the first relatively low temperature and the perception of force from the element when it returns to an unstretched state, when the second high temperature, characterized in that, in order to increase reliability, it contains a voltage limiter located between the feedback node and the thermosensitive element at one end of the thermosensitive element with the possibility of interaction with the latter, and the feedback node is mounted on a support, and the thermosensitive element is connected with node reverse action through a voltage limiter.
    194290 sr
    Thebes I
    [2]
    2. The device according to π. 1, characterized in that the voltage limiter is made in the form of an elastic element that is installed with the possibility of free movement upon mutual movement of the thermosensitive element and the node of the reverse action.
    [3]
    3. The device according to paragraphs. 1 and 2, characterized in that the elastic element is located between the thermally sensitive element and the supporting element on which the thermally sensitive element is mounted.
    [4]
    4. The device according to paragraphs. 2 and 3, about t -t characterized in that the elastic element is made in the form of a spiral spring located around one end of the heat-sensitive element to interact with the latter when it is compressed.
    [5]
    5. The device according to p. 4, characterized in that the heat-sensitive element is made in the form of many wires, each of which is equipped with an elastic element in the form of a spiral spring located around one of its ends.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1194290A3|1985-11-23|Device for converting heat energy
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    US3055170A|1962-09-25|Liquid thermal engine
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    CA1060228A|1979-08-14|Power transmitting mechanism
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    US2324613A|1943-07-20|Clutch
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    US2273882A|1942-02-24|Internal combustion engine
    WO1992016722A1|1992-10-01|Power-transforming device |
    SU1040248A1|1983-09-07|Wave gearing
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    DE1503337A1|1971-12-16|Hydraulic rotary piston engine
    DE102009050583B4|2015-05-28|Device for mechanical or electrical energy production from thermal energy
    同族专利:
    公开号 | 公开日
    ZA792427B|1980-05-28|
    ES481390A1|1980-02-01|
    NL180340C|1987-02-02|
    GB2022719A|1979-12-19|
    JPS54163244A|1979-12-25|
    NL180340B|1986-09-01|
    US4197709A|1980-04-15|
    IT7949358D0|1979-06-08|
    GB2022719B|1982-11-24|
    IL57406A|1982-07-30|
    SE7904986L|1979-12-10|
    BR7903586A|1980-01-22|
    FR2428155B1|1985-02-08|
    DE2922628A1|1979-12-13|
    IT1116586B|1986-02-10|
    IN152130B|1983-10-22|
    NL7904531A|1979-12-11|
    DE2922628C2|1983-12-08|
    JPS6257832B2|1987-12-02|
    AU4739279A|1979-12-13|
    CA1105719A|1981-07-28|
    MX154202A|1987-06-15|
    FR2428155A1|1980-01-04|
    SE442137B|1985-12-02|
    AU521130B2|1982-03-18|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/914,013|US4197709A|1978-06-09|1978-06-09|Thermal energy scavenger |
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