[특허]Heat storage system for vehicle, with adsorbent

Denso Corporation

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Heat storage system for vehicle, with adsorbent

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-027/00
미국특허분류(USC)	062/238.3; 062/238.6; 062/476
출원번호	US-0366805 (2003-02-14)
우선권정보	JP-0060734 (2002-03-06); JP-0182869 (2002-06-24)
발명자 / 주소	Aikawa, Yasukazu Suzuki, Takahisa Inoue, Satoshi Sato, Hideaki Mieda, Hiroshi
출원인 / 주소	Denso Corporation
대리인 / 주소	Harness, Dickey & Pierce, PLC
인용정보	피인용 횟수 : 9 인용 특허 : 4

초록
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In a heat storage system for a vehicle, when a temperature of cooling water from a vehicle engine is high, adsorbents are heated by the cooling water, so that moisture is desorbed from the adsorbents in order to store heat. When the temperature of cooling water is low, the moisture is adsorbed in the adsorbents to heat the cooling water, while refrigerant in a vapor compression refrigerator is cooled by evaporating water. Thus, adsorption heat is generated from the adsorbents, and the cooling water is heated by using the adsorption heat. Accordingly, war...

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1. A heat storage system for a vehicle, comprising:an adsorbent for adsorbing and desorbing medium, the adsorbent having a medium-adsorbing capacity that is reduced in accordance with a temperature increase of the adsorbent, and generating heat when adsorbing gas medium;an adsorption chamber for containing the adsorbent therein;a waste heat supplier for supplying waste heat generated in the vehicle to the adsorbent;an adsorption heat supplier for supplying the heat generated by the adsorbent to an apparatus requiring warm-up operation, the apparatus being mounted in the vehicle;a refrigerator for cooling air to be blown into a passenger compartment of the vehicle, the refrigerator including a refrigerant-medium heat exchanger for performing heat-exchange between the medium and refrigerant circulated in the refrigerator;a first valve for opening and closing a first passage through the gas medium desorbed from the adsorbent is introduced from the adsorption chamber to the refrigerant-medium heat exchanger;a liquid-medium storage chamber for storing liquid medium cooled and condensed in the refrigerant-medium heat exchanger, the liquid medium being heated and vaporized to be gas medium in the refrigerant-medium heat exchanger by absorbing heat;a second valve for opening and closing a second passage through which the liquid-medium storage chamber and the adsorption chamber communicate with each other, wherein:the first valve opens the first passage for a predetermined time when a temperature of the apparatus is equal to or higher than a predetermined temperature, and closes the first passage after the predetermined time passes; andthe second valve opens the second passage at least when the temperature of the apparatus is lower than the predetermined temperature. 2. The heat storage system according to claim 1, wherein the refrigerant-medium heat exchanger performs heat-exchange between the refrigerant and the liquid medium stored in the liquid-medium storage chamber when the second valve opens the second passage. 3. The heat storage system according to claim 1, wherein the medium is water. 4. The heat storage system according to claim 1, wherein the adsorbent is a hydration material for generating a hydrate. 5. The heat storage system according to claim 1, wherein the refrigerator is a vapor compression refrigerator. 6. The heat storage system according to claim 1, wherein the waste heat is heat generated by the apparatus after ending the warm-up operation. 7. The heat storage system according to claim 1, further comprising an adsorbent cooling unit that cools the adsorbent when the second valve opens the second passage. 8. The heat storage system according to claim 7, further comprisinga radiator for performing a heat exchange between cooling water circulating in the apparatus and outside air, wherein:the adsorbent cooling unit includes a radiating portion that is integrated with the radiator. 9. The heat storage system according to claim 8, wherein both of the radiator and the radiating portion radiate heat generated by the apparatus to outside air, when an amount of the heat generated from the apparatus is equal to or larger than a predetermined amount. 10. The heat storage system according to claim 1, further comprisingan adsorbent cooling unit having a cooling portion for cooling the adsorbent, wherein:the waste heat supplier, the adsorption heat supplier and the cooling portion are provided to be constructed of a single heat exchanger; andthe first valve and the second valve are constructed of a single valve for opening and closing the first passage and the second passage. 11. The heat storage system according to claim 1, wherein,the refrigerant-medium heat exchanger is disposed to cool the refrigerant in the refrigerator through the medium in a cooling mode. 12. A heat storage system for a vehicle, comprising:an adsorbent for adsorbing and desorbing gas medium, the adsorbent desorbing the gas medium when being heated;a vap or compression refrigerator for cooling air to be blown into a passenger compartment, the vapor compression refrigerator including a refrigerant-medium heat exchanger for performing heat-exchange between the medium and refrigerant; andan adsorption chamber containing therein the adsorbent and the refrigerant-medium heat exchanger, for storing therein liquid medium cooled and condensed by the refrigerant-medium heat exchanger, the liquid medium being heated and vaporized to gas medium by heat from the refrigerant in the refrigerant-medium heat exchanger, wherein,the refrigerant-medium heat exchanger is disposed in the adsorption chamber to cool the refrigerant in the refrigerator in a cooling mode. 13. The heat storage system according to claim 12, wherein,the refrigerant-medium heat exchanger is disposed to cool refrigerant at a low pressure side after being decompressed in the refrigerator in the cooling mode. 14. The heat storage system according to claim 12, wherein:the vapor compression refrigerator includes at least two heat exchangers at the low pressure side; andthe refrigerant-medium heat exchanger is disposed in a refrigerant passage connecting the two heat exchangers, to cool refrigerant flowing in the refrigerant passage. 15. The heat storage system according to claim 14, wherein the two heat exchangers and the refrigerant-medium heat exchanger are integrated with each other. 16. The heat storage system according to claim 15, wherein:the refrigerant-medium heat exchanger includes a refrigerant-fluid heat exchanger for performing heat-exchange between a fluid heat-exchanged with the medium in the adsorption chamber and refrigerant flowing in the refrigerant passage between the two heat exchangers; andthe refrigerant-fluid heat exchanger and the two heat exchangers are integrated with each other. 17. The heat storage system according to claim 13, wherein the adsorbent is disposed to be cooled by refrigerant at a high pressure side before being decompressed in the refrigerator in the cooling mode. 18. The heat storage system according to claim 12, wherein the refrigerant-medium heat exchanger is disposed to cool refrigerant at a high pressure side before being decompressed in the refrigerator, in the cooling mode. 19. The heat storage system according to claim 12, further comprising:a fluid passage through which a fluid for cooling and heating the adsorbent flows to the adsorbent;a switching valve for opening and closing the fluid passage; anda pump for circulating the fluid to the adsorbent. 20. The heat storage system according to claim 12, wherein the adsorbent has a medium-adsorbing capacity that is changed in accordance with a change of relative humidity around the adsorbent. 21. The heat storage system according to claim 12, wherein the adsorbent is disposed to have a substantially constant temperature. 22. The heat storage system according to claim 12, wherein, in a cold storage mode, the adsorbent is heated by waste heat generated in the vehicle while the vehicle is traveling.

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이 특허를 인용한 특허 피인용횟수: 9

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Heat storage system for vehicle, with adsorbent

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Heat storage system for vehicle, with adsorbent

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