| US 7,500,309 B2 | ||
| Cold or heat accumulator and process for its manufacture | ||
| Robert Lang, Munich (Germany); Kemal-Edip Yidirim, Stockdorf (Germany); and Wolfgang Kraemer, Munich (Germany) | ||
| Assigned to Webasto Thermosysteme International GmbH, Stockdorf (Germany) | ||
| Filed on Jan. 09, 2006, as Appl. No. 11/327,432. | ||
| Application 11/327432 is a division of application No. 10/601554, filed on Jun. 24, 2003, granted, now 7,000,681. | ||
| Claims priority of application No. 102 42 069 (DE), filed on Sep. 11, 2002. | ||
| Prior Publication US 2006/0112555 A1, Jun. 01, 2006 | ||
| Int. Cl. B21D 39/00 (2006.01); B21D 51/18 (2006.01); B21D 53/02 (2006.01); B21K 21/00 (2006.01); B23P 15/26 (2006.01); F28D 1/00 (2006.01); F28F 1/32 (2006.01) | ||
| U.S. Cl. 29—890.03 [29/514; 29/727; 29/890.035; 29/890.043; 165/150; 165/152; 165/171; 165/173] | 10 Claims |
| 1. Process for producing a thermal accumulator having a plurality of carrier elements which are charged with a thermal storage
medium, and a heat exchanger through which a heat transfer medium is flowable in heat exchange relationship to said thermal
storage medium, said process comprising the steps of:
a) fabricating of the carrier elements and charging of the carrier elements with a thermal storage medium, wherein fabrication
of the carrier elements comprises cutting to size and stacking a plurality of graphite carrier material plates,
b) fabricating a heat exchanger comprised of at least one serpentine hollow section, and
c) joining of the carrier elements and the heat exchanger by the following steps:
c1) applying force for elastic enlargement of a space between legs of at least one loop of the at least one serpentine hollow
section;
c2) arranging at least one carrier element in the enlarged space between the legs of the at least one loop of the at least
one serpentine hollow section, and
c3) releasing the applied force.
|