Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyota Jidosha Kabushiki Kaisha

Ryuichi Iwata

Takafumi Yamauchi

Yasuki Hirota

Takashi Shimazu

Masakazu Aoki

Manabu Orihashi

Masaki Morita

Tomohisa Wakasugi

Tsutomu Shinagawa

Ko Kugimoto

A heat pump system generates cooling by evaporating a refrigerant using an evaporator, and generates cooling by using a compressor to desorb refrigerant that has been evaporated by the evaporator and adsorbed at an adsorption device.

Heat pump system and cooling generation method

A fuel cell system includes: a plurality of reactor vessels containing a hydrogen storage material; a hydrogen tank storing a hydrogen gas; a fuel cell; a cooling device to dissipate exhaust heat from the reactor vessels or the fuel cell to the outside; a hydrogen gas line that can switch supply routes of the hydrogen gas among the reactor vessels, the hydrogen tank, and the fuel cell; a heat exchange line that can switch circulation routes of a heat exchange medium among the reactor vessels, the fuel cell, and the cooling device; and a control mechanism to switch the supply routes of the hydrogen gas and the circulation routes of the heat exchange medium.

Fuel cell system

A heat exchanger comprising: a heat exchange unit that exchanges heat between a heat transfer medium and a heat exchange object; a phase change unit, which comprises a liquid phase space that accommodates the heat transfer medium in a liquid phase state, and a gas phase space that accommodates the heat transfer medium in a gas phase state, the heat transfer medium being capable of moving into and out of the gas phase space; and a first channel along which the heat transfer medium is moved from the phase change unit to the heat exchange unit, wherein the heat exchanger is configured such that a saturated vapor pressure at a temperature of the heat transfer medium in the liquid phase flowing into the phase change unit differs from a pressure of the heat transfer medium in the gas phase in the gas phase space.

Heat exchanger and heat storage system

A thermal transpiration flow heat pump includes an evaporator that vaporizes a medium, a condenser that condenses the medium, and a medium transport unit that is provided between the evaporator and the condenser. The medium transport unit includes a medium-temperature heat source portion that is placed on a side of the evaporator, a high-temperature heat source portion that is placed on a side of the condenser, and a thermal transpiration flow pump that is placed between the medium-temperature heat source portion and the high-temperature heat source portion.

Thermal transpiration flow heat pump

A switching device sequentially switches from having an evaporator-condenser generate an adsorbate and an adsorbent adsorb the adsorbate, to having an evaporator-condenser condense the adsorbate and an adsorbent desorb the adsorbate, such that the evaporator-condenser that generates the adsorbate and the adsorbent that adsorbs the adsorbate face each other, and the evaporator-condenser that condenses the adsorbate and the adsorbent that desorbs the adsorbate face each other. Accordingly, one adsorbent repeatedly desorbs and adsorbs in alternation, and another adsorbent repeatedly adsorbs and desorbs in alternation.

Heat pump

An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium. The adsorption-section of the first adsorption device in a state reacting with the first heat exchange-medium is in communication with the evaporator/condenser section, and the adsorption-section of the first adsorption device is in a state having adsorbed the first heat exchange-medium is in communication with the second adsorption device adsorption-section, and the first adsorption device pipe is connected to the evaporator/condenser pipe in series, thereby generating cooling.

Heat pump and cooling power generation method

An adsorption heat pump system comprises an evaporator that evaporates an adsorbate; a first adsorption device that adsorbs the adsorbate of the evaporator and generates cooling in the evaporator; and a second adsorption device that adsorbs the adsorbate that was adsorbed by the first adsorption device and generates cooling in the first adsorption device.

Adsorption heat pump system and cooling generation method

An adsorption heat pump system includes a first adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; a second adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; and a vapor supply member that evaporates the adsorbate and supplies adsorbate vapor to the first adsorption device and the second adsorption device at different respective pressures.

A heat pump including an evaporator and an adsorber is provided. The adsorber is regenerated by applying heat from a chemical thermal storage reactor, a heat accumulator or an external heat source, at a temperature higher than or equal to a temperature to regenerate the adsorber.

Adsorption heat pump system and method of generating cooling power

An adsorption heat pump includes: a first evaporator that evaporates a first fluid; a condenser that condenses the first fluid; a heater; and a rotary adsorption device. The rotary adsorption device includes: partitioning portions that radially partition a space encircling the rotation axis into plural regions, that each include a flow path for internally retaining and discharging a second fluid, and that each include an adsorbent on an outer surface thereof or on a wall surface of the flow path; and a pair of closure portions that close off both ends, in the direction of the rotation axis, of the plural regions. Each of the partitioning portions is moved alternately between the first evaporator side and the condenser side by rotation around the rotation axis. In the partitioning portions, retention and discharge of the first fluid, and discharge and retention of the second fluid, are repeated.

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Nagakute, Japan

Ryuichi Iwata