Denso Corporation

Nippondenso Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Hisao Nagashima

Shinsuke Takeuchi

Yoshiyuki Okamoto

Hideaki Sato

Masaaki Tanaka

Keiichi Kitamura

Shin Honda

Satoshi Inoue

Katsuya Ishii

Akira Yanagida

Kenichi Fujiwara

Seiji Inoue

Takahisa Suzuki

Takuya Fuse

Katsuya Komaki

Kazutoshi Kuwayama

Hiroshi Mieda

Masakatsu Tsubouchi

Manabu Orihashi

Kazutoshi Nishinakamura

Junji Otobe

An energy conversion system includes an energy converter, a cold generator, and a liquid water obtainer. The energy converter is configured to convert energy of a source from one form to another form and generate heat and water vapor. The cold generator is configured to generate cold using the heat generated by the energy converter. The liquid water obtainer is configured to condense the water vapor using the cold to obtain liquid water. Accordingly, the water vapor generated from the energy converter can be cooled efficiently. Therefore, efficiency in obtaining the liquid water can be improved compared with a case where the water vapor is cooled by open air.

Energy conversion system

An adsorption core has (i) a heat medium tube in which a heat medium flows and (ii) an adsorption agent that adsorbs a fluid in a vapor phase outside of the heat medium tube when being cooled by the heat medium and desorbs the absorbed fluid when being heated. The heat medium tube has (i) a core member that is made of metal having a higher hardness with respect to copper and (ii) a covering layer that is made of copper and covers an outer surface of the core member. A sintered body of a copper powder and the adsorption agent is provided in a peripheral portion of the heat medium tube. The copper powder and the heat medium tube are metallically coupled with each other. Accordingly, stiffness of the heat medium tube can be higher while improving a heat transfer performance between the heat medium tube and the adsorption agent.

Adsorption core and manufacturing method thereof

An adsorber includes: a closed container in which an adsorption medium is included; an adsorption part that is provided in the closed container and includes an adsorbent, which adsorbs and desorbs the adsorption medium; and an evaporation/condensation part that is provided in the closed container and that exchanges heat between the adsorption medium and a heat exchanging medium, which is supplied from outside of the closed container, to evaporate and condense the adsorption medium. The evaporation/condensation part includes a heat transfer part that transfers heat of the heat exchanging medium to the adsorption medium. The heat transfer part is capable of holding the adsorption medium, an amount of which is capable of being adsorbed by the adsorbent of the adsorption part.

Adsorber

In an adsorber, a sintered body, which is formed by sintering metal powder particles, is joined to an outer surface of a heat medium tube, in which heat medium flows. An adsorbent is held by the sintered body. A groove is formed in an outer surface of the heat medium tube, and a groove is formed in an inner surface of the heat medium tube.

An adsorber includes: a heat-medium pipe through which a heat medium flows; an adsorbent layer having an adsorbent that adsorbs a vapor-phase refrigerant located outside the heat-medium pipe by being cooled by the heat medium, and further desorbs the adsorbed refrigerant by being heated; and a heat-transfer member that transfers heat between the heat-medium pipe and the adsorbent. In the adsorber in which the heat-transfer member and the adsorbent are integrally formed, an adsorbent filling ratio &#x3d5; is set at 70% or less when the adsorbent filling ratio &#x3d5; is defined as a value obtained by dividing a filling density &#x3c1; of the adsorbent filled in the adsorbent layer by a true density &#x3c1;abs of particles of the adsorbent. For example, the adsorber may be suitably used for an adsorption refrigerator.

Adsorber and adsorption refrigerator

An adsorption module has heat medium pipes through which a fluid flows, a porous heat transferring member, and adsorbent. The porous heat transferring member is a sintered body formed by sintering a metallic material that is in a form of one of powders, particles and fibers, and has pores for allowing an adsorbed medium to pass through. The porous heat transferring member is disposed on peripheries of the heat medium pipes and bonded to outer surfaces of the heat medium pipes by sintering. The adsorbent is disposed in the pores. The porous heat transferring member further has an adsorbed medium passage for allowing the adsorbed medium to pass through. The adsorbed medium passage is located between the heat medium pipes, and extends straight and parallel to axes of the heat medium pipes.

Adsorption module and method of manufacturing the same

In an adsorber for an adsorption type refrigerator of the present invention, aluminum heat exchangersarranged in a casingare provided with films which do not permit moisture to pass therethrough, such as SiOfilms, anodic oxide coating films and several ppm to a hundred and several tens of ppm of inorganic negative ions such as PO, SiOare added in the water enclosed in the casing.

Aluminum heat exchanger

The present invention provides an adsorption-type cooling apparatus comprising first, second, third, and fourth adsorption devices filled with a coolant and contain adsorbents which adsorb evaporated coolant and desorb the adsorbed coolant during heating. Adsorption cores provide heat exchange between the adsorbents and a heat medium, and evaporation and condensation cores provide heat exchange between heating medium and the coolant. A cooling device in which heating medium cooled in the evaporation and condensation cores circulates and cools the object of cooling. A heating means supplies a high-temperature heat medium to the first-fourth adsorption devices. A cooling means supplies a low-temperature heat medium which has a temperature lower than that of the high-temperature heat medium to the first-fourth adsorption devices. Also, a switching control means is provided which switches between multiple states.

Adsorption-type cooling apparatus

A cooling medium charge amount detector capable of detecting whether or not an actual amount of a cooling medium is a desired amount in comparison with the amount of the cooling medium necessary for a desired degree of supercooling on an inlet side of an expansion valve in a refrigeration circulation system, without using a sensor or computation means. A cooling medium on the inlet side of an expansion valve 23 in a refrigeration circulation system 20 is allowed to flow into a cooling medium charge amount detector 40. Throttles 41, 42, 43 are disposed in this cooling medium charge amount detector 40, and sight glasses 44, 45, 46 are disposed at both ends of the throttles 41, 42, 43 to detect a gas-liquid condition of the cooling medium. When the cooling medium flows into this cooling medium charge amount detector, the shift of the cooling medium from a liquid condition to a two-phase gas-liquid condition is checked upstream or downstream of any throttle to match the load condition at that time. In this way, a pressure difference proportional to the degree of supercooling can be detected and eventually, whether or not the charge amount of the cooling medium is suitable in the refrigeration circulation system 20 can be detected.

Method and apparatus for detecting an amount of cooling medium charged

A refrigerant recovery system has a refrigerant recovery vessel which is connected to a refrigerant-recovered refrigeration circuit. A gaseous refrigerant in the refrigerant-recovered refrigeration system is sucked into the refrigerant recovery vessel due to the difference between the pressure in the refrigerant-recovered refrigeration circuit and the refrigerant recovery wheel. The refrigerant recovery vessel is cooled by a refrigeration circuit provided in the refrigerant recovery system, so that the sucked gaseous refrigerant is a liquified. to the refrigerant recovery vessel, a recovery tank made of a cartridge type is connected. The liquefied refrigerant from the refrigerant recovery vessel is sent to the tank. When the temperature of the recovery tank is not low enough, the liquefied refrigerant sent into the tank is evaporated and then returns to the refrigerant recovery vessel so that the refrigerant is liquefied in the vessel again. Such processes are repeated so that the temperature of the tank is gradually lowered by the liquified refrigerant sent thereto and hence the liquefied refrigerant is accumulated in the tank.

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Kariya, Japan

Hisao Nagashima