Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Kentaro Shii

Shinsuke Takeguchi

Motohiro Suzuki

Hironobu Machida

Takeshi Ogata

Takumi Hikichi

Tadayoshi Shoyama

Tatsuya Nakamura

Masanobu Wada

Akira Hiwata

Yu Shiotani

Takashi Kubo

Hiroshi Hasegawa

Hirofumi Yoshida

Hiroaki Nakai

Tsuyoshi Karino

Naoyuki Tani

Ryuichi Ohno

Kazuaki Suito

Daisuke Funakosi

Kou Sugano

Yoshitaka Nakamura

Masaaki Nagai

Ryuichi Ozaki

Yusuke Ogihara

Izumi Hirasawa

So Morioka

A fluid heating device includes a pressurizing chamber configured to store a working fluid and a heat accumulator disposed in the pressurizing chamber. The heat accumulator includes a heat accumulating member configured to release heat by receiving a pressure applied to the working fluid. The fluid heating device has improved actuation efficiency.

Fluid heating device, motor system, movable object, and hydraulic system

Provided is a heat storage device () of the present disclosure comprises a heat storage material () containing sodium acetate trihydrate; a first electrode having a surface which is in contact with the heat storage material and formed of at least one selected from the group consisting of silver, a silver alloy, and a silver compound; a second electrode in contact with the heat storage material; an inorganic porous material contained in the heat storage material; and a power supply () for applying a voltage to the first electrode and the second electrode. The inorganic porous material has an average pore diameter of not more than 50 nanometers. The present invention provides a heat storage device capable of releasing heat by releasing a supercooled state by voltage application. The heat storage device can be used repeatedly.

Heat storage device

A heat storage apparatus according to the present disclosure includes a heat storage material and a member. The heat storage material forms a clathrate hydrate by cooling. The member has a surface with a plurality of holes. In the case that the lattice constant of the clathrate hydrate is denoted by L and the outside diameter of a cage included in the clathrate hydrate is denoted by D, the plurality of holes are spaced at intervals of 1L to 10L, and each of the plurality of holes has a hole diameter of 1D to 20D.

Heat storage apparatus, method for storing heat, and method for producing heat storage apparatus

The heat storage apparatus of the present disclosure includes a casing, a heat storage material that is located in the casing, a stirrer that is located in the casing, that is in contact with the heat storage material, and that rotates to stir the heat storage material, and a projection that is in contact with the heat storage material, that projects from the stirrer, and that rotates with rotation of the stirrer. The projection is continuously in contact with an inner face of the casing while the stirrer rotates.

Heat storage apparatus

A heat storage apparatus according to the present disclosure includes a casing, a heat storage material, and movable components. An internal space in the casing is partitioned into a plurality of spaces. The heat storage material is located in each of the plurality of spaces. At least one movable component is disposed in contact with the heat storage material in each of the plurality of spaces, and is capable of changing a position thereof relative to a position of the casing as time proceeds.

Heat storage apparatus and method of completing crystallization of heat storage material

Provided is a latent heat cold storage material containing: water; a crystalline powder; and at least one inorganic salt. The crystalline powder is formed of a compound having a saturated concentration of less than 7.0 wt % to an aqueous solution of the inorganic salt having a concentration of 25 wt % at 25&#xb0; C. A concentration of the crystalline powder exceeds a saturated concentration of the crystalline powder to the aqueous solution of the inorganic salt at 25&#xb0; C.

Latent heat cold storage material

A heat storage material composition contains a sugar alcohol and a stabilizer that allows the sugar alcohol to maintain a liquid state and a supercooled state. The stabilizer is one selected from (i) a salt that has a solubility of 9 g or more in 100 mL of 20&#xb0; C. water and gives a monovalent anion, (ii) a polymer prepared by using the salt as a monomer, and (iii) a polymer having a molecular weight of 7,000 or more and 4,000,000 or less prepared by using, as a monomer, an alcohol having a solubility of 9 g or more in 100 mL of 20&#xb0; C. water.

Heat storage material composition, heat storage device, and heat storage method

A rotary compressor (A) includes a closed casing (), a compression mechanism (), a lower end-face plate (), and a communication hole (). An oil reservoir () is formed at the bottom of the closed casing (). The lower end-face plate () divides the oil reservoir () into a plurality of sections () and () in the vertical direction. The plurality of sections of the oil reservoir () communicate with each other through the communication hole (). The communication hole () is located on the same side as a discharge port () of the compression mechanism () with respect to a reference plane (H).

Rotary compressor

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port, a discharge port (), and a partition member (). The partition member () is attached to a second principal surface () of the lower bearing member () located on the opposite side to the cylinder () so as to form a refrigerant discharge space () serving as a flow path of a refrigerant discharged from a discharge chamber through the discharge port (). The refrigerant discharge space () is limited so that a region where the refrigerant discharge space () is not present is formed on the same side as the suction port with respect to a first reference plane, and in that region, the second principal surface () of the lower bearing member () is in contact with an oil in an oil reservoir () directly or via the partition member ().

Rotary compressor with cylinder immersed in oil

A latent heat storage material contains sodium acetate, water, and a supercooling stabilizer containing a group 11 metal-containing compound, and has a group 11 metal concentration of 2.0&#xd7;10ppm or less.

Latent heat storage material

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port (), a discharge port (), and a partition member (). The partition member () is attached to the lower bearing member () so as to form a refrigerant discharge space () serving as a flow path of a refrigerant discharged from a discharge chamber () through the discharge port (). The lower bearing member () is provided with a first recess () on the same side as the suction port () with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder () and a center of the vane () when the vane () protrudes maximally toward the central axis of the cylinder (). A portion of oil stored in an oil reservoir () flows into the first recess (), and thereby an oil retaining portion () is formed.

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port (), a discharge port (), and a partition member (). The partition member () is attached to the lower bearing member () so as to form a space enclosed by the partition member () and the lower bearing member () at a position adjacent to the lower bearing member (). A portion of an oil stored in the oil reservoir () flows into the enclosed space, and thereby an oil retaining portion () is formed. The oil retaining portion () is located on the same side as the suction port () with respect to a reference plane (H).

Rotary compressor with oil retaining portion

The present invention provides a capacity-control refrigeration cycle device capable of efficiently vary capacity, and in any of a full operation mode in which capacity of the refrigeration cycle device is not controlled and an operation mode in which the capacity is controlled, all of refrigerants are discharged into a hermetic containerand then, the refrigerants pass through a discharge pathand are guided to outside of the hermetic container. After a refrigerant and oil are sufficiently separated in the hermetic container, the refrigerant is discharged to outside of the hermetic container. Therefore, efficiencies of a condenserand an evaporatorare not deteriorated. Since it is possible to reduce an amount of oil taken outside of the hermetic container, it is possible to stably secure oil in an oil reservoir, and to prevent bite of parts of a compressing mechanism and to prevent abnormal wearing.

Refrigeration cycle device capable of efficiently varying capacity providing a first and a second compressing mechanism disposed in a hermetic container

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Osaka, Japan

Kentaro Shii