JP2007263045A - Latent heat accumulation device, engine start acceleration device and engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a latent heat accumulation device capable of surely emitting latent heat, an engine start acceleration device capable of thermally accelerating engine start successfully, and an engine successfully raising temperature of cooling medium at a time of start. <P>SOLUTION: A latent heat accumulating material vessel 120 is stored in a cylinder block water jacket 112e formed in a cylinder block 112. A magnetic field generating part 130 is arranged outside of the latent heat accumulation material vessel 120. A movable magnetic plate 141 and a trigger member 142 are stored in the latent heat accumulation material vessel 120. The trigger member 142 is arranged between the movable magnetic plate 141 and the magnetic field generating part 130. The movable magnetic plate 141 moves toward the magnetic field generating part 130 by a magnetic field generated by the magnetic field generating part 130. Then, the trigger member 142 is pressed and elastically deformed. Latent heat is emitted form the latent heat accumulation material under an over cool condition by the elastic deformation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a latent heat storage device configured to releasably hold latent heat. The present invention also relates to an engine start acceleration device configured to be able to thermally accelerate engine start. Furthermore, the present invention relates to an engine configured to be able to rapidly increase the temperature of the cooling medium at start-up.

As the latent heat storage device, one having a configuration utilizing a discharge action of the latent heat from a so-called latent heat storage material is known. The latent heat storage material is a substance that can retain the latent heat in a supercooled state and can release the latent heat by releasing the supercooled state by some external stimulus. As this latent heat storage material, for example, sodium acetate trihydrate (CH ₃ COONa · 3H ₂ O) is known. This type of latent heat storage device is configured to release the supercooled state by applying the above-described stimulus to the latent heat storage material in the supercooled state.

  Japanese Unexamined Patent Publication No. 63-105219 (Patent Document 1) discloses an example of the configuration of the engine provided with this type of latent heat storage device. This latent heat storage device is configured to be interposed in the cooling water passage of the engine. In particular, this latent heat storage device is configured to be housed in a cooling water passage in the cylinder head. This latent heat storage device includes a heating container, a heat insulating container, an active material, a communicating portion, and an on-off valve.

  The latent heat storage material is accommodated in the heating container. The heat insulating container is provided adjacent to the heating container. The heat insulating container contains an active material. The active material is made of, for example, a crystal (solid) of the latent heat storage material. The said active material is comprised so that the said latent heat storage material can be phase-shifted from a gel phase to a solid phase by contacting with the said latent heat storage material. The communication part is formed so that the heating container and the heat insulating container can communicate with each other. The on-off valve is disposed in the communication part. This on-off valve is fixed to the tip of a rod that is actuated by an actuator. The rod is provided so as to penetrate the heat insulating container.

  In this configuration, at the time of starting the engine, the actuator operates the rod so that the on-off valve causes the communication portion to communicate. Thereby, the gel-like latent heat storage material in the heating container is solidified by contacting with the active body. Due to the phase transition of the latent heat storage material from the gel phase to the solid phase, the latent heat is released from the latent heat storage material. The engine coolant is heated by the released latent heat. That is, warming up of the engine is promoted.

  On the other hand, after the warm-up of the engine is finished, the latent heat storage material is heated by the cooling water. Thereby, the latent heat storage material undergoes phase transition from the solid phase to the liquid phase. Due to this phase transition, the latent heat can be stored in the latent heat storage material. Thereafter, the communication portion is closed by the on-off valve.

  Japanese Patent Laid-Open No. 11-182393 (Patent Document 2) discloses another example of the configuration of the engine provided with this type of latent heat storage device. In this engine, a heat storage material storage chamber in which the latent heat storage material is stored is formed in a cylinder block. The heat storage material accommodation chamber is provided so as to surround the cylinder. Further, a pair of electrodes connected to a predetermined power source are arranged so as to be exposed in the latent heat storage material.

In such a configuration, a predetermined voltage is applied between the pair of electrodes when the engine is cold started. Thereby, an electrical impact is given to the latent heat storage material in the supercooled state. By this electrical shock, the supercooled state in the latent heat storage material is released, and the stored latent heat is released. On the other hand, after the warm-up of the engine is completed, the latent heat storage material is melted by heat transfer from the cylinder block. Thereby, the latent heat is stored in the latent heat storage material.
JP-A-63-105219 JP 11-182393 A

  However, this type of conventional latent heat storage device as described above and an engine including the same have various problems.

  For example, in the latent heat storage device disclosed in Japanese Patent Laid-Open No. 63-105219 (Patent Document 1), the latent heat storage material may leak out at a location where the rod penetrates the heat insulating container. possible. In particular, when the latent heat storage device is disposed in the cooling water passage, the cooling water can enter the heat insulating container and the heating container from the cooling water passage. In this case, impurities are mixed into the latent heat storage material. Due to the mixing of the impurities, the latent heat storage / release action of the latent heat storage material may be hindered.

  Further, in the latent heat storage device disclosed in Japanese Patent Application Laid-Open No. 63-105219 (Patent Document 1), before the cold start, the communication portion is not sufficiently closed by the on-off valve. There is a possibility that the active body mistakenly contacts the latent heat storage material. In this case, the supercooled state in the latent heat storage material is inadvertently canceled before cold start. As a result, before the cold start, the latent heat storage material is in a state where the latent heat is not retained. Therefore, even if the on-off valve is operated during a subsequent cold start, the engine start cannot be accelerated thermally.

  In the latent heat storage device disclosed in Japanese Patent Application Laid-Open No. 11-182393 (Patent Document 2), in order to improve the certainty of the release of the supercooled state in the latent heat storage material, usually, Silver or a silver alloy is used as at least the anode (more preferably, the anode and the cathode). Therefore, the manufacturing cost of the latent heat storage device increases.

  Even if this silver anode is used, the reliability of the release of the supercooled state of the latent heat storage material is poor. That is, when a voltage is applied, the surface of the silver anode is covered with silver oxide by an electrochemical reaction in the silver anode. When the silver anode is thus covered with silver oxide, it becomes difficult to release the supercooled state by the silver anode thereafter.

Means for Solving the Problems and Effects of the Invention

  The present invention has been made in order to solve the above-described problems, and the object thereof is to improve the latent heat storage device capable of reliably releasing the latent heat and the thermal acceleration of starting the engine. An object of the present invention is to provide an engine start acceleration device that can be performed, and the engine that can perform the temperature increase of the cooling medium at the time of starting better.

  The latent heat storage device of the present invention is configured to hold the latent heat in a releasable manner. The latent heat storage device includes a latent heat storage material, a latent heat storage material container, an electromagnetic field generation unit, and a supercooling release unit.

  The latent heat storage material can hold the latent heat in a supercooled state, and can release the latent heat when the supercooled state is released. The latent heat storage material container is configured as an airtight container having a latent heat storage material storage portion therein which is a space in which the latent heat storage material can be stored in a liquid-tight manner. The electromagnetic field generation unit is configured to generate an electromagnetic field (an electric field and / or a magnetic field) outside the latent heat storage material accommodation unit. The said supercooling cancellation | release part is arrange | positioned in the said latent heat storage material container. The supercooling release unit is configured to be able to release the supercooling state in the latent heat storage material by dynamically operating in the latent heat storage material in the supercooled state by the action of the electromagnetic field. ing.

  In such a configuration, a predetermined electromagnetic field is generated outside the latent heat storage material accommodation unit by the electromagnetic field generation unit. The electromagnetic field causes the supercooling release unit to dynamically operate in the latent heat storage material container as the sealed container in which the latent heat storage material in the supercooled state is accommodated. As this mechanical operation, for example, elastic deformation, stress generation, compression on the latent heat storage material, and the like can be used.

  By this mechanical operation, the supercooling state of the minute amount of the latent heat storage material adjacent to the supercooling release portion in the latent heat storage material container is released. Thereby, the very small amount of the latent heat storage material undergoes phase transition to the solid phase. That is, minute solid phase nuclei are formed. Thus, when a minute solid phase nucleus is formed, the latent heat is released by releasing the supercooling state in the latent heat storage material around the nucleus one after another and performing phase transition.

  Thereafter, the latent heat storage material is heated to a predetermined temperature, and phase transition is again made from the solid phase to the liquid phase. The latent heat storage material in a liquid phase is in a gel state without phase transition to a solid phase when the temperature becomes lower than the predetermined temperature. That is, the latent heat storage material is in the supercooled state. Thereby, the latent heat is stored.

  According to the said structure, from the outside of the said latent heat storage material accommodating part which is the space inside the said latent heat storage material container with respect to the said supercooling cancellation | release part arrange | positioned in the said latent heat storage material container as the said airtight container The supercooled state in the latent heat storage material is released by applying an electromagnetic field by the electromagnetic field generator. Therefore, the leakage of the latent heat storage material from the latent heat storage material container and the mixing of foreign matter into the latent heat storage material storage unit can be suppressed.

  Moreover, according to the said structure, even if it does not use expensive materials, such as silver, the said supercooled state in the said latent heat storage material can be cancelled | released reliably. Therefore, the latent heat storage device that can reliably release the latent heat can be realized with an inexpensive device configuration.

  The engine of the present invention is configured so that the temperature of the cooling medium can be rapidly increased at the time of starting. The engine includes an engine block, a latent heat storage material, a latent heat storage material container, an electromagnetic field generation unit, and a supercooling release unit. The engine start acceleration device of the present invention is configured to be able to thermally accelerate the engine start. The engine start promoting device includes the latent heat storage material, the latent heat storage material container, the electromagnetic field generation unit, and the supercooling release unit.

  The engine block is a member constituting the main body of the engine. A cooling medium jacket, which is a passage for the cooling medium, is formed in the engine block. The latent heat storage material container is configured to be disposed in the cooling medium jacket. The electromagnetic field generator is configured to be attached to the engine block.

  In such a configuration, when the engine is cold-started, a predetermined electromagnetic field is generated outside the latent heat storage material accommodation unit by the electromagnetic field generation unit provided in the engine block. Due to this electromagnetic field, the supercooling release unit operates dynamically in the latent heat storage material container. By this mechanical operation, as described above, the supercooling state of a small amount of the latent heat storage material is released at a position close to the supercooling release unit, and a fine solid phase nucleus is formed. By the formation of the minute solid-phase nuclei, the supercooled state in the surrounding latent heat storage material is released one after another, and the latent heat is released.

  After the engine is warmed up, the latent heat storage material is heated to the predetermined temperature by heat generated during operation of the engine. Thereby, the latent heat storage material again undergoes phase transition from the solid phase to the liquid phase. Thereafter, when the engine is stopped and the temperature of the latent heat storage material becomes lower than the predetermined temperature, the latent heat is stored in the subcooled latent heat storage material.

  According to the said structure, the leakage of the said latent heat storage material from the said latent heat storage material container as the said airtight container and mixing of the foreign material into the said latent heat storage material accommodating part can be suppressed. In particular, the mixing of the cooling medium in the cooling medium jacket into the latent heat storage material accommodation unit can be suppressed. Moreover, mixing of the latent heat storage material into the cooling medium in the cooling medium jacket can be suppressed.

  Moreover, according to the said structure, even if it does not use expensive materials, such as silver, the said supercooled state in the said latent heat storage material can be cancelled | released reliably. Thus, the engine start acceleration device that can better perform the thermal start of the engine can be realized with an inexpensive device configuration. Furthermore, the engine which can perform the temperature rise of the cooling medium at the time of starting better can be realized with an inexpensive apparatus configuration.

-The supercooling cancellation | release part may be provided with the movable magnetic body and the trigger member. The said movable magnetic body is arrange | positioned in the said latent heat storage material accommodating part. The movable magnetic body is configured and arranged so as to be able to move in the latent heat storage material accommodating portion by the action of the electromagnetic field generated by the electromagnetic field generating portion. The trigger member is configured and arranged so as to be urged or pressed in the latent heat storage material accommodating portion by the movement of the movable magnetic body. The trigger member is configured to be able to release the supercooled state in the latent heat storage material by the above urging or pressing.

  In such a configuration, the movable magnetic body moves in the latent heat storage material accommodating portion by the action of the electromagnetic field (magnetic field) generated by the electromagnetic field generating portion. Due to the movement of the movable magnetic body, the trigger member is urged or pressed in the latent heat storage material accommodating portion. By the biasing or pressing of the trigger member, the supercooled state of the minute amount of the latent heat storage material adjacent to the trigger member is released, and a minute solid phase nucleus is formed. By the formation of the minute solid-phase nuclei, the supercooled state in the surrounding latent heat storage material is released one after another, and the latent heat is released.

  According to this configuration, the supercooled state in the latent heat storage material can be reliably released. Therefore, the release of the latent heat can be reliably performed with a simple apparatus configuration.

In the movable magnetic body and / or the trigger member, a passage through which the latent heat storage material can pass may be formed.

  In such a configuration, the latent heat storage material can freely pass through the passage when the latent heat storage material container is filled with the latent heat storage material. Thereby, the latent heat storage material can be filled also around the movable magnetic body and / or the trigger member. That is, the latent heat storage material can be surely filled in a portion of the trigger member that contributes to the formation of the nucleus. Therefore, the latent heat can be released more reliably.

  Further, when the movable magnetic body moves in the latent heat storage material accommodating portion, the latent heat storage material around the movable magnetic body and / or the trigger member freely passes through the passage. Thereby, the resistance by the latent heat storage material with respect to the movement of the movable magnetic body, the pressing to the trigger member, the elastic deformation of the trigger member, and the like becomes relatively small. Therefore, as the electromagnetic field generating unit, one having a smaller output, that is, a device having a smaller device configuration can be used. Further, the biasing or pressing with respect to the trigger member is more reliably performed. As a result, the latent heat can be released more reliably.

-The trigger member may be comprised so that the said supercooled state in the said latent heat storage material may be cancelled | released by elastically deforming.

  In such a configuration, the movable magnetic body moves in the latent heat storage material accommodating portion by the action of the electromagnetic field (magnetic field) generated by the electromagnetic field generating portion. Due to the movement of the movable magnetic body, the trigger member is elastically deformed in the latent heat storage material accommodating portion. Due to the elastic deformation of the trigger member, the supercooled state of the minute amount of the latent heat storage material adjacent to the trigger member is released, and a minute solid phase nucleus is formed. By the formation of the minute solid-phase nuclei, the supercooled state in the surrounding latent heat storage material is released one after another, and the latent heat is released.

  According to such a configuration, the latent heat can be reliably released by a simple device configuration.

-A regulation part which regulates the amount of elastic deformation of the trigger member may be further provided.

  In such a configuration, the trigger member is elastically deformed in the latent heat storage material accommodating portion based on generation of an electromagnetic field (magnetic field) by the electromagnetic field generating portion. At this time, the deformation amount of the trigger member is regulated by the regulation unit.

  According to this configuration, it is possible to effectively suppress the trigger member from being plastically deformed or cracked in the trigger member due to an excessive deformation amount of the trigger member.

  Hereinafter, embodiments of the present invention (embodiments that the applicant considers best at the time of filing of the present application) will be described with reference to the drawings.

<Schematic configuration of engine>
FIG. 1 is a cross-sectional view in a cross section perpendicular to the cylinder arrangement direction for explaining the internal configuration of an inline three-cylinder gasoline engine according to an embodiment of the present invention.

  The engine 100 includes an engine block 110. The engine block 110 is a member constituting the main body of the engine 100, and includes a cylinder head 111 and a cylinder block 112.

  The cylinder head 111 is formed with a cylinder head water jacket 111 a that is a flow path of cooling water for cooling the engine 100. This cylinder head water jacket 111a is formed in the vicinity of the intake port 111b which is a passage of the fuel mixture. The cylinder head water jacket 111a is also formed at a position near the exhaust port 111c, which is a passage for discharging the gas after combustion. Further, the cylinder head water jacket 111a is also formed at a position between an intake valve 111d arranged to open and close the intake port 111b and an exhaust valve 111e arranged to open and close the exhaust port 111c.

  The cylinder block 112 is formed with a block bore 112a which is a cylindrical through hole. A thin cylindrical cylinder liner 112b is inserted into the block bore 112a. A cylinder 112c is formed by a space inside the cylinder liner 112b. A piston 112d is accommodated in the cylinder 112c so as to be capable of reciprocating along the vertical direction in the figure.

  A cylinder block water jacket 112e, which is a flow path for the cooling water, is formed on the cylinder block 112. The cylinder block water jacket 112e is provided as a substantially cylindrical cavity formed so as to surround the upper part of the cylinder 112c and the upper part of the cylinder liner 112b.

  A gasket 113 is interposed at a connecting portion between the cylinder head 111 and the cylinder block 112. The gasket 113 is provided with a through hole 113a through which the cooling water can pass. The through hole 113a is formed so that the cooling water can be exchanged between the cylinder block water jacket 112e and the cylinder head water jacket 111a.

  The latent heat storage material container 120 is configured to be disposed in the cylinder block water jacket 112e. The latent heat storage material container 120 is accommodated in the cylinder block water jacket 112e so that a gap through which the cooling water can pass is formed between the latent heat storage material container 120 and the inner wall surface of the cylinder block water jacket 112e. The latent heat storage material container 120 is configured as a sealed container that can store the latent heat storage material in a liquid-tight manner.

  This latent heat storage material can retain latent heat in a supercooled state where the gel phase is maintained at a temperature lower than the melting point, and the latent heat is released by phase transition to a solid phase after the supercooled state is released. It is a substance that can release That is, the latent heat storage material becomes a liquid phase by being heated to a temperature exceeding the melting point, and does not cause a phase change in the solid phase even when cooled to a temperature below the melting point, while maintaining the latent heat. It is a substance having the characteristic of maintaining the state of (i.e., supercoolability). Further, the latent heat storage material is a substance that can release the latent heat when the supercooled state is released by an external stimulus at a temperature lower than the melting point.

The latent heat storage material used in the present embodiment is a substance having a melting point lower than the temperature of the cooling water after warming up (for example, about 82 ° C.). Specifically, for example, the latent heat storage material is composed of sodium acetate trihydrate (CH ₃ COONa · 3H ₂ O: melting point 58 ° C.). The latent heat storage material is configured so that the supercooled state can be maintained even if it is cooled to about -20 ° C to -30 ° C.

  A magnetic field generator 130 is attached to the cylinder block 112. The magnetic field generator 130 is made of an electromagnet and is disposed so as to face the latent heat storage material container 120. The magnetic field generator 130 is configured to generate a predetermined magnetic field by being energized under the control of an engine control computer (not shown) during cold start.

<Configuration of latent heat storage device>
FIG. 2 is a perspective view of the latent heat storage material container 120 and the magnetic field generator 130 shown in FIG. 3 and 4 are enlarged cross-sectional views of the periphery of the magnetic field generator 130 shown in FIG.

<< Latent heat storage material container >>
Referring to FIG. 2, the latent heat storage material container 120 includes a container body 121 made of a thin plate of SUS304 that is a non-magnetic material. The container main body 121 includes an outer side plate 121a, an inner side plate 121b, and a horizontal plate 121c.

  The outer side plate 121a and the inner side plate 121b are formed in a shape in which three cylinders are arranged in a row so as to overlap each other and smoothly joined together. A space capable of accommodating the latent heat storage material is formed between the outer side plate 121a and the inner side plate 121b. A horizontal plate 121c is connected to the upper and lower ends of the outer side plate 121a and the inner side plate 121b.

  Referring to FIGS. 2 and 3, the latent heat storage material container is formed so that a gap through which the cooling water can pass is formed between the outer side plate 121a and the inner side plate 121b and the inner wall surface of the cylinder block water jacket 112e. 120 is accommodated in the cylinder block water jacket 112e.

  A flat pedestal portion 122 is formed at the center of the outer side plate 121a in the height direction. The pedestal part 122 is provided at a position facing the magnetic field generation part 130. The pedestal portion 122 is formed with an opening portion 122a made of a through hole.

  A seal plate 123 is joined to the outer surface of the pedestal portion 122 so as to liquid-tightly close the opening portion 122a. The seal plate 123 is also composed of a thin plate of SUS304 that is a non-magnetic material. A trigger accommodating portion 123 a is formed at the center of the seal plate 123 so as to protrude toward the outside of the latent heat storage material container 120. A space capable of accommodating the latent heat storage material is formed by a recess formed inside the trigger accommodating portion 123a.

  The outer side plate 121a, the inner side plate 121b, and the horizontal plate 121c are joined together in a liquid-tight manner. Further, the end edge portion of the seal plate 123 and the outer surface of the pedestal portion 122 are joined in a liquid-tight manner via the seal portion 124. Thus, the latent heat storage material container 120 is configured as a sealed container having a latent heat storage material accommodation portion 125 inside which is a space in which the latent heat storage material can be contained in a liquid-tight manner.

<< Magnetic field generator >>
Referring to FIG. 3, the magnetic field generator 130 is attached to a coil attachment part 112 f formed so as to protrude from the outer surface of the cylinder block 112. The magnetic field generation unit 130 is configured to generate a magnetic field outside the latent heat storage material accommodation unit 125.

  The magnetic field generation unit 130 includes a coil 131 and a core 132 that constitute an electromagnet. The coil 131 and the core 132 are accommodated inside an inner coil holder 133 formed in a substantially cylindrical shape. The inner coil holder 133 is made of SUS304 that is a non-magnetic material. The end of the inner coil holder 133 on the side facing the latent heat storage material container 120 is formed in a shape that follows the outer shape of the trigger accommodating portion 123a so as to be in contact with the trigger accommodating portion 123a. That is, the end surface of the inner coil holder 133 in the state in which the coil 131 and the core 132 are accommodated on the side facing the latent heat storage material container 120 is formed so as to be in contact with the outer surface of the trigger accommodating portion 123a.

  An outer coil holder 134 formed in a substantially cylindrical shape is provided outside the inner coil holder 133. The outer coil holder 134 is configured to support the coil 131 and the core 132 indirectly by supporting the inner coil holder 133 inside thereof.

  A male screw portion is formed at the end of the outer coil holder 134 on the side far from the latent heat storage material container 120. The magnetic field generator 130 is attached to the cylinder block 112 by screwing the male screw part into the female screw part formed in the coil attachment part 112f. Further, the fixing nut 135 is screwed to the male screw portion in the outer coil holder 134 so that the magnetic field generating portion 130 is fixed to the cylinder block 112 so as not to be detached from the cylinder block 112. .

  An O-ring 136 is interposed between the outer coil holder 134 and the coil mounting portion 112f. The O-ring 136 can suppress the cooling water in the cylinder block water jacket 112e from leaking out of the cylinder block 112 through the gap between the outer coil holder 134 and the coil mounting portion 112f. It is configured as follows.

<< Supercooling release part >>
A movable magnetic plate 141 and a trigger member 142 are accommodated in a recess inside the trigger accommodating portion 123 a formed at the center of the seal plate 123. That is, the movable magnetic plate 141 and the trigger member 142 are disposed inside the latent heat storage material accommodation unit 125.

  The movable magnetic plate 141 is made of SUS430, which is a magnetic material, and is formed in a disk shape. The movable magnetic plate 141 is disposed at a position facing the core 132 in the magnetic field generation unit 130 with the trigger member 142 and the seal plate 123 interposed therebetween. As shown in FIGS. 3 and 4, the movable magnetic plate 141 is configured and arranged so that it can move in the latent heat storage material accommodating portion 125 by the action of the magnetic field generated by the magnetic field generating portion 130. Yes.

  The trigger member 142 is disposed between the movable magnetic plate 141 and the seal plate 123. The trigger member 142 is a leaf spring member, and is formed of a thin plate of SUS304 that is a non-magnetic material. That is, the trigger member 142 is configured to urge the movable magnetic plate 141 toward the pedestal portion 122.

  The trigger member 142 includes a dish-like portion 142a and a flange portion 142b. The dish-like portion 142 a includes a recess that opens toward the movable magnetic plate 141. That is, the dish-like portion 142a is formed so as to protrude in a direction from the movable magnetic plate 141 toward the seal plate 123 (core 132). The flange part 142b is provided so as to extend outward from the end edge of the dish-like part 142a.

  The trigger member 142 is pressed toward the core 132 in the latent heat storage material accommodating portion 125 by the movement of the movable magnetic plate 141 in the direction close to the core 132 when the coil 131 is energized. Are arranged and arranged. As shown in FIGS. 3 and 4, the trigger member 142 is configured such that the dish-like portion 142 a can be elastically deformed by the above-described pressing accompanying the movement of the movable magnetic plate 141.

  Referring to FIGS. 3 and 4, the movable magnetic plate 141 and the trigger member 142 constituting the supercooling release unit of the present invention dynamically operate by the action of a magnetic field in the latent heat storage material in the supercooled state. Thereby, it is comprised so that the said supercooling state in the said latent heat storage material can be cancelled | released.

  FIG. 5A is an enlarged side sectional view of the trigger member 142 shown in FIG. FIG. 5B is a plan view of the trigger member 142 shown in FIG.

  Referring to FIG. 5B, a plurality (four in this embodiment) of flange portions 142b are formed in a narrow tongue-like shape protruding outward. And the latent heat storage material channel | path 142c which is a channel | path through which the said latent heat storage material material can pass is formed of the space between adjacent flange parts 142b. The dish-like portion 142a has a large number of notches 142d.

  The trigger member 142 can release the supercooled state in the latent heat storage material in the vicinity of the notch 142d provided in the dish-like part 142a by elastically deforming the dish-like part 142a by the above-described pressing. It is configured.

<Operation of Engine of Embodiment>
Hereinafter, the operation of the engine 100 having the above-described configuration will be described with reference to FIGS. 1 to 5.

  First, referring to FIG. 1, after the warm-up, in a state where the cooling water is higher than a predetermined warm-up end temperature (for example, about 82 ° C.), the heat stored in the latent heat storage material container 120 is described above. The entire amount of the latent heat storage material (sodium acetate trihydrate: melting point 58 ° C.) is heated to a temperature exceeding the melting point by the cooling water in the cylinder block water jacket 112e to become a liquid phase.

  Thereafter, the engine 100 is stopped, and the cooling water in the cylinder block 112 and the cylinder block water jacket 112e is reduced to about the outside air temperature. In this case, the latent heat storage material does not change to a solid phase and maintains a gel phase state. That is, the latent heat storage material retains the latent heat by being in the supercooled state.

  Referring to FIG. 3, while engine 100 is stopped, coil 131 in magnetic field generation unit 130 is not energized. In this case, the magnetic field generator 130 does not generate a predetermined magnetic field that attracts the movable magnetic plate 141. Therefore, while the engine 100 is stopped, the movable magnetic plate 141 is pressed against the pedestal part 122 by the trigger member 142 as shown in FIG.

  When the engine 100 is restarted and the warm-up operation is performed, the coil 131 is energized. Then, a predetermined magnetic field that attracts the movable magnetic plate 141 is generated in the magnetic field generation unit 130 located outside the latent heat storage material accommodation unit 125. As a result, the movable magnetic plate 141 moves toward the core 132 as shown in FIG. 4 against the urging by the trigger member 142.

  By the movement of the movable magnetic plate 141, the flange portion 142 b of the trigger member 142 is pressed toward the magnetic field generation unit 130. By this pressing, the dish-like portion 142a is elastically deformed. Due to the elastic deformation of the dish-like portion 142a, the supercooled state in the latent heat storage material in the vicinity of the notch 142d (see FIG. 5) is released, and a fine solid phase nucleus is generated. When the nucleus comes into contact with the surrounding latent heat storage material in the supercooled state, the supercooled state of the latent heat storage material around the nucleus is released one after another.

  The latent heat stored in the space between the outer side plate 121a and the inner side plate 121b via the opening 122a is affected by the release of the supercooled state in the latent heat storage material in the trigger accommodating portion 123a. It affects the entire heat storage material. Thus, the latent heat stored in the latent heat storage material is released by releasing the supercooled state of the latent heat storage material in a chain reaction.

  The latent heat extracted from the latent heat storage material is transmitted to the upper part of the cylinder block 112 via the cooling water in the cylinder block water jacket 112e around the latent heat storage material container 120. Thereby, warm-up at the time of cold start is accelerated | stimulated.

  In addition, the cooling water heated by the latent heat taken out as described above flows into the cylinder head water jacket 111a of the cylinder head 111, so that the positions near the intake port 111b and the intake valve 111d of the cylinder head 111 are changed. Be warmed up. As a result, the vaporized fuel is prevented from condensing and adhering to the inner wall of the intake port 111b and the surface of the intake valve 111d as much as possible at the time of cold start. Can be suppressed.

<Effects of Configuration of Embodiment>
Hereinafter, effects of the configuration of the present embodiment as described above will be described.

Referring to FIGS. 3 and 4, in the configuration of the present embodiment, a movable structure configured to be able to release the supercooled state of the latent heat storage material by a mechanical operation of pressing and elastic deformation based on the pressing. The magnetic plate 141 and the trigger member 142 are accommodated in the latent heat storage material container 120 which is a sealed container. And by the magnetic field generated in the magnetic field generator 130 located outside the latent heat storage material container 120 that is this sealed container, that is, outside the latent heat storage material container 125 that is a liquid-tightly sealed space, The above-mentioned pressing and elastic deformation are caused.

  According to such a configuration, the subcooling of the latent heat storage material can be performed without using a structure in which a rod-shaped member for driving the movable magnetic plate 141 and the trigger member 142 moves back and forth through the latent heat storage material container 120. The state can be released. Therefore, leakage of the latent heat storage material from the latent heat storage material container 120 and mixing of the latent heat storage material into the cylinder block water jacket 112e due to the leakage can be effectively suppressed. Moreover, the mixing of foreign matter into the latent heat storage material accommodating portion 125, particularly the mixing of the cooling water in the cylinder head water jacket 111a, can be effectively suppressed.

  As described above, according to the configuration of the present embodiment, the latent heat storage device that can surely release the latent heat, the engine start acceleration device that can better perform the thermal acceleration of the start of the engine 100, and the start It is possible to provide the engine 100 capable of performing the temperature increase of the cooling water better at a low cost with a simple device configuration.

-In the structure of this embodiment, the trigger member 142 is comprised so that the said supercooled state in the said latent heat storage material can be cancelled | released by elastically deforming. Therefore, even if an expensive material such as silver is not used for the trigger member 142, the supercooled state in the latent heat storage material can be reliably released.

In the configuration of the present embodiment, the end surface of the inner coil holder 133 in the state in which the coil 131 and the core 132 are accommodated on the side facing the latent heat storage material container 120 is in contact with the outer surface of the trigger accommodating portion 123a. . The trigger member 142 is pressed by the movable magnetic plate 141 moving toward the core 132 in a state where the coil 131, the core 132, the inner coil holder 133, and the trigger accommodating portion 123a are in contact with each other.

  With this configuration, the magnetic attractive force between the core 132 and the movable magnetic plate 141 is efficiently used for elastic deformation of the trigger member 142. That is, it can be effectively suppressed that the above-described suction force is wasted for the deformation of the trigger accommodating portion 123a. Therefore, the apparatus configuration of the magnetic field generator 130 can be simplified, for example, by using a smaller coil 131 with a smaller number of turns. Further, as the magnetic field generation unit 130, a device with small output and power consumption can be adopted. Further, the trigger member 142 is reliably pressed with a small force. As a result, the latent heat can be released more reliably.

Referring to FIG. 5, in the configuration of the present embodiment, a latent heat storage material passage 142c, which is a passage through which the latent heat storage material can pass, is formed between adjacent flange portions 142b.

  According to this configuration, when the trigger member 142 is pressed by the movement of the movable magnetic plate 141, the latent heat storage material around the trigger member 142 freely passes through the latent heat storage material passage 142c. Thereby, the resistance by the said latent heat storage material with respect to the elastic deformation of the trigger member 142 becomes comparatively small. Therefore, referring to FIGS. 3 and 4, the apparatus configuration of the magnetic field generation unit 130 can be further simplified, and the magnetic field generation unit 130 having a smaller output and power consumption can be employed. Further, the trigger member 142 is more reliably pressed with a smaller force. Thereby, the release of the latent heat can be performed more reliably.

-With reference to FIG. 1, in the structure of this embodiment, the latent heat storage material container 120 is accommodated in the cylinder block water jacket 112e.

  Therefore, according to this embodiment, when the engine 100 is started, the latent heat storage material is released from the supercooled state and the latent heat is released in the cylinder block water jacket 112e. Therefore, the heat generated by releasing the supercooled state is efficiently transmitted to the cooling water in the cylinder block water jacket 112e and the cylinder block 112 itself without being released to the outside air.

In the configuration of the present embodiment, a gap through which the cooling water can pass is formed between the inner wall surface of the cylinder block water jacket 112e and the outer wall surface of the latent heat storage material container 120.

  According to this configuration, when the latent heat is released from the latent heat storage material at the time of cold start, the heat is supplied to the cooling water filled in the gap between the latent heat storage material container 120 and the cylinder block water jacket 112e. Is transmitted to. The cylinder block 112 is heated by the heat transferred to the cooling water as evenly as possible in the height direction of the cylinder 112c. Therefore, the friction loss in the cylinder block 112 in warm air can be effectively suppressed. In addition, after the warm-up, the cooling water passes through a gap between the inner wall surface of the cylinder block water jacket 112e and the outer wall surface of the latent heat storage material container 120, so that the latent heat storage material in the latent heat storage material container 120 is overheated. Can be prevented.

<List of examples of modification>
Note that, as described above, the above-described embodiments are merely examples of typical embodiments of the present invention that the applicant has considered to be the best at the time of filing of the present application. Therefore, the present invention is not limited to the above-described embodiment. Therefore, it goes without saying that various modifications can be made to the above-described embodiment within the scope not changing the essential part of the present invention.

  Hereinafter, some typical modifications will be exemplified. In the following description of modifications, members having the same configuration and function as those described in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment. And about description of this member, the description in the above-mentioned embodiment shall be used in the range which is not technically consistent.

  However, it goes without saying that the modifications are not limited to those listed below. In addition, a plurality of modified examples can be applied in a composite manner as appropriate within a technically consistent range.

  The present invention (particularly, the functional and functional representations of the constituent elements constituting the means for solving the problems of the present invention) is based on the description of the above-described embodiment and the following modifications. Should not be interpreted as limited. Such a limited interpretation unfairly harms the interests of applicants who rush to file applications under the principle of prior application, but unfairly imitates the implications of patent law for the purpose of protecting and using the invention. Contrary to purpose, not allowed.

(1) The present invention is not limited to engine applications and automobile applications as in the above-described embodiment. When the present invention is applied to an engine, the applicable object is not only an in-line engine such as an in-line 3 cylinder or an in-line 4 cylinder as in the above-described embodiment, but a single-cylinder engine or a bank angle of 0 degrees Further, it can be applied to a V-type engine and a horizontally opposed engine that are more than 180 degrees and less than 180 degrees.

  When the present invention is applied to a multi-cylinder engine, a latent heat storage device (latent heat storage material container 120, magnetic field generator 130, movable magnetic plate 141, and trigger member 142) is independently provided for each cylinder. May be. Alternatively, the latent heat storage device may be provided only in a specific cylinder.

(2) As the material of the latent heat storage material, in addition to sodium acetate trihydrate (CH ₃ COONa · 3H ₂ O), oxalic acid, magnesium acetate, manganese acetate, nickel sulfate, magnesium sulfate, copper sulfate, zinc sulfate Sodium thiosulfate, sodium sulfite, and hydrates thereof, naphthalene, palmitic acid, benzoic acid, high-purity paraffin, and a mixture thereof can be used.

(3) Referring to FIG. 2, a plurality of pedestals 122, seal plates 123, and magnetic field generators 130 may be provided. As a result, the latent heat can be released more reliably.

(4) Referring to FIG. 3, the inner side surfaces of the outer side plate 121 a and the inner side plate 121 b facing the latent heat storage material accommodation unit 125 may be subjected to mold release treatment. Specifically, for example, the inner surface may be coated with a fluorine-based synthetic resin. Or container main body 121 itself may be comprised from the fluorine-type synthetic resin.

  According to such a configuration, the occurrence of nucleation on the inner surface in a cryogenic environment while the engine is stopped can prevent the problem that the latent heat is accidentally released before starting as much as possible. .

(5) FIG. 6 is a view showing a modification of the movable magnetic plate 141 and the trigger member 142 shown in FIG. Here, FIG. 6A is a side sectional view, and FIG. 6B is a plan view.

  Referring to FIG. 6A, a leg 142e is formed at the outer end of the flange 142b of the trigger member 142. The leg 142e is provided so as to protrude from the end of the flange 142b in a direction opposite to the protruding direction of the dish 142a.

  Referring to FIG. 6B, an elongated leg fixing hole 141 a is formed at the end of the movable magnetic plate 141. The leg fixing hole 141a is configured to be able to lock the trigger member 142 by accommodating the leg 142e.

  According to this configuration, the movable magnetic plate 141 and the trigger member 142 are positioned. Thereby, during the operation of releasing the supercooled state of the latent heat storage material, the relative positional relationship between the movable magnetic plate 141 and the trigger member 142 is kept substantially constant. Therefore, even if the movable magnetic plate 141 and the trigger member 142 are repeatedly driven, the operation of releasing the supercooled state of the latent heat storage material can always be reliably performed.

(6) FIG. 7 is a view showing another modification of the movable magnetic plate 141 and the trigger member 142 shown in FIG. Here, FIG. 7A is a side sectional view, and FIG. 7B is a plan view.

  Referring to FIG. 7A, a restriction protrusion 142f is provided on the flange portion 142b of the trigger member 142. The restricting protrusion 142f is formed so as to protrude in the same direction as the protruding direction of the dish-like portion 142a. The restricting projection 142f is configured by a boss formed by pressing the flange portion 142b.

  In such a configuration, the amount of elastic deformation of the dish-like portion 142a can be regulated by the regulating projection 142f. That is, the elastic deformation of the dish-like portion 142a can be suppressed when the restricting protrusion 142f contacts the trigger accommodating portion 123a (see FIG. 4).

  According to the configuration of such a modified example, it is possible to effectively suppress the dish-shaped portion 142a from being plastically deformed or cracked in the dish-shaped portion 142a due to an excessive elastic deformation amount of the trigger member 142. Can be done. Therefore, even if the movable magnetic plate 141 and the trigger member 142 are repeatedly driven, the operation of releasing the subcooled state of the latent heat storage material can be stably performed.

(7) FIG. 8 is a cross-sectional view showing another modification of the latent heat storage material container 120, the movable magnetic plate 141, and the trigger member 142 shown in FIG.

  Referring to FIG. 8, the opening 122 a formed in the outer side plate 121 a of the container body 121 is formed as a through hole larger than the movable magnetic plate 141. That is, the opening 122a is provided so as to surround the outside of the movable magnetic plate 141. A latent heat storage material passage 122b, which is a passage through which the latent heat storage material can pass, is formed between the opening inner edge of the opening 122a and the outer edge of the movable magnetic plate 141.

  A flat pedestal 121b1 is formed at a position facing the pedestal 122 in the inner side plate 121b. The pedestal part 121b1 is provided to face the movable magnetic plate 141.

  The trigger member 142 is disposed so that the dish-like portion 142a protrudes toward the movable magnetic plate 141 and the flange portion 142b contacts the trigger accommodating portion 123a. A positioning projection 142g is provided at the center of the dish-like portion 142a in plan view. The positioning protrusion 142g is formed so as to protrude toward the movable magnetic plate 141.

  A positioning projection fixing hole 141b is provided at the center of the movable magnetic plate 141 in plan view. The positioning protrusion fixing hole 141b is formed to accommodate the positioning protrusion 142g.

  In such a configuration, the movable magnetic plate 141 and the trigger member 142 are positioned by the positioning protrusion 142g and the positioning protrusion fixing hole 141b. Thereby, even if the movable magnetic plate 141 and the trigger member 142 are repeatedly driven, the operation of releasing the supercooled state of the latent heat storage material can always be reliably performed.

  Further, when the latent heat storage material accommodating portion 125 is filled with the latent heat storage material, the latent heat storage material can freely pass through the latent heat storage material passage 122b. Thereby, the latent heat storage material can be filled also around the movable magnetic plate 141 and the trigger member 142. That is, the latent heat storage material can be reliably filled in the portion of the trigger member 142 that contributes to the formation of the nucleus. Therefore, the latent heat can be released more reliably.

  Furthermore, when the movable magnetic plate 141 moves in the latent heat storage material accommodating portion 125, the latent heat storage material around the movable magnetic plate 141 freely passes through the latent heat storage material passage 122b. Thereby, the resistance by the latent heat storage material to the movement of the movable magnetic plate 141 becomes relatively small. Therefore, as the magnetic field generator 130 (see FIG. 3), a device having a smaller output, that is, a device having a smaller device configuration can be used. In addition, the biasing or pressing with respect to the trigger member 142 is more reliably performed. As a result, the latent heat can be released more reliably.

(8) FIG. 9 is a cross-sectional view showing another modified example of the latent heat storage material container 120, the movable magnetic plate 141, and the trigger member 142 of the modified example shown in FIG.

  Referring to FIG. 9, in the present modification, a positioning projection 141 c is provided on the movable magnetic plate 141. The positioning protrusion 141 c is formed so as to protrude toward the seal plate 123. In the present modification, the trigger member 142 is provided with a positioning projection fixing hole 142h.

  According to such a configuration, the same operation and effect as the modified example in FIG. 8 described above can be obtained. Furthermore, in this modification, the moving amount of the movable magnetic plate 141 is regulated by the positioning protrusion 141c. Thereby, the deformation amount of the trigger member 142 is also regulated by the positioning protrusion 141c. Therefore, plastic deformation or the like of the trigger member 142 due to an excessive amount of elastic deformation of the trigger member 142 can be effectively suppressed.

(9) FIG. 10 is a sectional view showing a modification of the magnetic field generator 130 shown in FIG. The magnetic field generation unit 130 of this modification includes an actuator 137 and a permanent magnet 138 instead of the coil 131 and the core 132 in FIG.

  The actuator 137 is composed of a motor or a solenoid, and is configured to move the movable shaft 137a forward and backward by energization. A permanent magnet 138 is fixed to the tip of the movable shaft 137a.

  In such a configuration, the actuator 137 is driven during the cold start, so that the permanent magnet 138 moves toward the movable magnetic plate 141. Accordingly, the movable magnetic plate 141 is attracted to the permanent magnet 138, and the movable magnetic plate 141 moves toward the permanent magnet 138. By the movement of the movable magnetic plate 141, the trigger member 142 is pressed, and the supercooling state in the latent heat storage material around the trigger member 142 is released.

(10) FIG. 11 is a diagram showing another modification of the movable magnetic plate 141 and the trigger member 142 shown in FIG.

  Referring to FIG. 11, the movable magnetic plate 141 is disposed on the outer surface side of the pedestal portion 122. A trigger through shaft 143 is provided so as to protrude from the surface of the movable magnetic plate 141 facing the pedestal portion 122 toward the space between the outer side plate 121a and the inner side plate 121b. The trigger penetration shaft 143 is formed integrally with the movable magnetic plate 141.

  The trigger member 142 is disposed in the space between the outer side plate 121a and the inner side plate 121b. That is, the trigger member 142 is disposed so that the flange portion 142b of the trigger member 142 is in contact with the inner surface of the pedestal portion 122 (the surface on the side facing the inner side plate 121b). Moreover, the trigger member 142 is arrange | positioned so that the plate-shaped part 142a may protrude toward the space between the outer side plate 121a and the inner side plate 121b.

  A central protrusion 142k is provided at the center of the dish-like portion 142a in plan view. The central protrusion 142k is formed to protrude toward the inner side plate 121b. A through hole is formed in the central projecting portion 142k, and a trigger through shaft 143 is inserted into the through hole. The stopper 144 is formed with an outer diameter larger than the through hole in the central protrusion 142k. The stopper 144 is fixed to the tip of the trigger through shaft 143 so that the trigger through shaft 143 can be prevented from coming out of the through hole in the central projecting portion 142k.

  In such a configuration, when the coil 131 is energized, the magnetic field generator 130 generates the predetermined magnetic field that attracts the movable magnetic plate 141. Then, the trigger penetration shaft 143 and the stopper 144 also try to move toward the magnetic field generation unit 130. Thereby, the center protrusion 142k in the trigger member 142 is urged upward in the figure. By urging the central protrusion 142k, the portion of the dish-like portion 142a of the trigger member 142 between the central protrusion 142k and the flange 142b is elastically deformed.

  Due to the elastic deformation of the dish-shaped portion 142a, the supercooled state in the latent heat storage material near the dish-shaped portion 142a is released at a position inside the latent heat storage material containing portion 125 with respect to the opening 122a.

  According to such a configuration, the above-described nucleus generation by the trigger member 142 is performed in the space between the outer side plate 121a and the inner side plate 121b. Therefore, the influence of this nucleation is quickly exerted on most of the latent heat storage material stored in the space between the outer side plate 121a and the inner side plate 121b. Therefore, according to this configuration, the latent heat can be released more quickly and reliably.

(11) FIG. 12 is a view showing a modification of the pedestal portion 122 and the trigger member 142 shown in FIG. Here, FIG. 12A is a side sectional view, and FIG. 12B is a plan view.

  In the present modification, the flange portion 142b of the trigger member 142 is formed in a disc shape without a break and a joint. That is, in this modification, the trigger member 142 is not formed with a passage through which the latent heat storage material can pass.

  On the other hand, in this modification, a plurality of latent heat storage material passages 122 b are formed in the pedestal portion 122. The latent heat storage material passage 122b is configured by grooves provided radially from the opening 122a. The terminal portion of the latent heat storage material passage 122b is provided so as to open outside the flange portion 142b of the trigger member 142.

  According to this configuration, when the movable magnetic plate 141 moves, the latent heat storage material can freely pass through the latent heat storage material passage 122b. Thereby, the movement of the movable magnetic plate 141 in the trigger accommodating portion 123a can be smoothly performed with a small resistance. Therefore, referring to FIGS. 3 and 4, the apparatus configuration of the magnetic field generation unit 130 can be further simplified, and the magnetic field generation unit 130 having a smaller output and power consumption can be employed. Further, the biasing of the trigger member 142 is more reliably performed with a smaller force. Thereby, the release of the latent heat can be performed more reliably.

(12) FIG. 13 is a view showing a modification of the movable magnetic plate 141 shown in FIG. Here, FIG. 13A is a side sectional view of the periphery of the movable magnetic plate 141 of this modification, and FIG. 13B is a plan view of the movable magnetic plate 141.

  In the present modification, the movable magnetic plate 141 is formed with a through hole 141d and a notch 141e. The notch 141e is formed at the outer edge of the movable magnetic plate 141 as shown in FIG. These through holes 141d and notches 141e constitute a latent heat storage material passage through which the latent heat storage material can freely pass.

  In such a configuration, when the movable magnetic plate 141 moves, the latent heat storage material can freely pass through the through hole 141d and the notch 141e. Thereby, the movement of the movable magnetic plate 141 in the trigger accommodating portion 123a can be smoothly performed with a small resistance.

(13) In the above-described embodiment and each modification, the magnetic field generation unit 130 is provided in the cylinder block 112 and disposed outside the latent heat storage material container 120. However, the magnetic field generator 130 may be provided in the latent heat storage material container 120.

(14) The movable magnetic plate 141 and the trigger member 142 can be integrated. That is, the movable magnetic plate 141 can be omitted by forming at least a part of the trigger member 142 from a magnetic material.

(15) The above-described embodiment and each modification are configured to release the supercooling state in the latent heat storage material by moving the magnetic body in the latent heat storage material accommodation unit 125 using magnetic force. ing.

  However, the present invention is not limited to this. For example, instead of the magnetic field generator 130, an electric field generator can be used. In this case, in the latent heat storage material accommodating portion 125, a member that can dynamically operate in accordance with the electric field generated by the electric field generating portion is accommodated.

(16) In addition, in the elements constituting the means for solving the problems of the present invention, the elements expressed functionally and functionally are the specific structures disclosed in the above-described embodiments and modifications. In addition, any structure capable of realizing the operation / function is included.

It is sectional drawing in a cross section perpendicular | vertical to a cylinder arrangement | sequence direction for demonstrating the internal structure of the inline 3 cylinder gasoline engine based on one Embodiment of this invention. FIG. 2 is a perspective view of a latent heat storage material container and a magnetic field generation unit shown in FIG. 1. It is sectional drawing to which the periphery of the magnetic field generation | occurrence | production part shown by FIG. 1 was expanded. It is sectional drawing to which the periphery of the magnetic field generation | occurrence | production part shown by FIG. 1 was expanded. FIG. 5A is an enlarged side sectional view of the trigger member shown in FIG. FIG. 5B is a plan view of the trigger member shown in FIG. It is a figure which shows one modification of the movable magnetic board and trigger member which are shown by FIG. Here, FIG. 6A is a side sectional view, and FIG. 6B is a plan view. It is a figure which shows the other modification of the movable magnetic board and trigger member which are shown by FIG. Here, FIG. 7A is a side sectional view, and FIG. 7B is a plan view. It is sectional drawing which shows the other modification of the latent heat storage material container shown by FIG. 3, a movable magnetic board, and a trigger member. It is sectional drawing which shows the other modification of the latent heat storage material container of the modification shown by FIG. 8, a movable magnetic board, and a trigger member. It is sectional drawing which shows the modification of the magnetic field generation | occurrence | production part shown by FIG. It is a figure which shows the other modification of the movable magnetic board and trigger member which are shown by FIG. It is a figure which shows the modification of the base part and trigger member which are shown by FIG. Here, FIG. 12A is a side sectional view, and FIG. 12B is a plan view. It is a figure which shows the modification of the movable magnetic board shown by FIG. Here, FIG. 13A is a side sectional view of the periphery of the movable magnetic plate of the present modification, and FIG. 13B is a plan view of the movable magnetic plate.

Explanation of symbols

100 ... Engine 110 ... Engine block 112 ... Cylinder block
112e ... Cylinder block water jacket, 112f ... Coil mounting part,
120 ... latent heat storage material container, 121 ... container body, 122 ... pedestal,
122a ... opening, 122b ... latent heat storage material passage, 123 ... seal plate,
123a ... trigger accommodating part, 124 ... seal part, 125 ... latent heat storage material accommodating part,
130: Magnetic field generator, 131: Coil, 132: Core,
137 ... Actuator, 138 ... Permanent magnet, 141 ... Movable magnetic plate,
141d ... through hole, 141e ... notch, 142 ... trigger member,
142a ... a dish-like portion, 142b ... a flange portion, 142c ... a latent heat storage material passage,
142d ... notch, 142f ... regulation protrusion

Claims (15)

In a latent heat storage device configured to releasably hold latent heat,
A latent heat storage material configured to be capable of holding latent heat in a supercooled state and releasing the latent heat by releasing the supercooled state;
A latent heat storage material container configured as an airtight container having a latent heat storage material storage portion therein, which is a space capable of storing the latent heat storage material in a liquid-tight manner;
An electromagnetic field generator configured to generate an electromagnetic field outside the latent heat storage material housing; and
It is arranged in the latent heat storage material container, and is dynamically operated by the action of the electromagnetic field in the latent heat storage material in the supercooled state, thereby releasing the supercooled state in the latent heat storage material. A supercooling release section configured to obtain,
A latent heat storage device comprising: The latent heat storage device according to claim 1,
The supercooling release unit is
A movable magnetic body disposed in the latent heat storage material container so as to move in the latent heat storage material container by the action of the electromagnetic field generated in the electromagnetic field generator;
It is configured and arranged so that it can be urged or pressed in the latent heat storage material accommodating portion by the movement of the movable magnetic body, and the supercooled state in the latent heat storage material can be released by the urging or pressing. A trigger member configured in
A latent heat storage device comprising: The latent heat storage device according to claim 2,
A passageway through which the latent heat storage material can pass is formed in the movable magnetic body and / or the trigger member. The latent heat storage device according to claim 2 or 3,
The latent heat storage device, wherein the trigger member is configured to be elastically deformed to release the supercooled state of the latent heat storage material. The latent heat storage device according to claim 4,
The latent heat storage device further comprising a restricting portion for restricting an elastic deformation amount of the trigger member. In an engine start acceleration device configured to thermally accelerate engine start,
A latent heat storage material configured to be capable of holding latent heat in a supercooled state and releasing the latent heat by releasing the supercooled state;
A cooling medium passage formed in an engine block that constitutes a main body portion of the engine, having a sealed container having a latent heat storage material storage portion therein that is a space in which the latent heat storage material can be stored in a liquid-tight manner. A latent heat storage material container configured to be disposed within a cooling medium jacket;
An electromagnetic field generator configured to be mounted on the engine block, and configured to generate an electromagnetic field outside the latent heat storage material container;
It is arranged in the latent heat storage material container, and is dynamically operated by the action of the electromagnetic field in the latent heat storage material in the supercooled state, thereby releasing the supercooled state in the latent heat storage material. A supercooling release section configured to obtain,
An engine start promoting device characterized by comprising: The engine start promotion device according to claim 6,
The supercooling release unit is
A movable magnetic body disposed in the latent heat storage material container so as to move in the latent heat storage material container by the action of the electromagnetic field generated in the electromagnetic field generator;
It is configured and arranged so that it can be urged or pressed in the latent heat storage material accommodating portion by the movement of the movable magnetic body, and the supercooled state in the latent heat storage material can be released by the urging or pressing. A trigger member configured in
An engine start promoting device characterized by comprising: The engine start promotion device according to claim 7,
A passage for allowing passage of the latent heat storage material is formed in the movable magnetic body and / or the trigger member. The engine start acceleration device according to claim 7 or 8,
The engine start promoting device, wherein the trigger member is configured to be elastically deformed to release the supercooled state in the latent heat storage material. The engine start promotion device according to claim 9,
An engine start acceleration device further comprising a restricting portion for restricting an elastic deformation amount of the trigger member. In an engine configured to be able to rapidly increase the temperature of the cooling medium at start-up,
A cooling medium jacket that is a passage of the cooling medium is formed, and an engine block that constitutes a main body of the engine;
A latent heat storage material configured to be capable of holding latent heat in a supercooled state and releasing the latent heat by releasing the supercooled state;
There is a sealed container having a latent heat storage material storage portion inside which is capable of storing the latent heat storage material in a liquid-tight manner, and a latent heat storage material container configured to be disposed in the cooling medium jacket;
An electromagnetic field generating unit that is provided in the engine block and configured to generate an electromagnetic field outside the latent heat storage material accommodation unit;
It is arranged in the latent heat storage material container, and is dynamically operated by the action of the electromagnetic field in the latent heat storage material in the supercooled state, thereby releasing the supercooled state in the latent heat storage material. A supercooling release section configured to obtain,
An engine characterized by comprising The engine according to claim 11,
The supercooling release unit is
A movable magnetic body disposed in the latent heat storage material container so as to move in the latent heat storage material container by the action of the electromagnetic field generated in the electromagnetic field generator;
It is configured and arranged so that it can be urged or pressed in the latent heat storage material accommodating portion by the movement of the movable magnetic body, and the supercooled state in the latent heat storage material can be released by the urging or pressing. A trigger member configured in
An engine characterized by comprising An engine according to claim 12,
An engine characterized in that a passage through which the latent heat storage material can pass is formed in the movable magnetic body and / or the trigger member. An engine according to claim 12 or claim 13,
The engine, wherein the trigger member is configured to be elastically deformed to release the supercooled state in the latent heat storage material. 15. The engine according to claim 14,
An engine, further comprising a restricting portion for restricting an elastic deformation amount of the trigger member.

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