Inductor devices – With temperature modifier – Vented casing
Reexamination Certificate
2006-11-06
2011-11-01
Mai, Anh (Department: 2832)
Inductor devices
With temperature modifier
Vented casing
C336S055000, C336S057000, C336S060000, C336S061000
Reexamination Certificate
active
08049587
ABSTRACT:
An air-core reactor with natural-air cooling of a winding includes first open spaces to let air flow through the winding in parallel with an axis of symmetry of the reactor and second open spaces crossing the first open spaces to let air flow through the winding angular to the axis of symmetry. A ventilation unit to produce a forced-air flow is arranged in such a way to the air-core reactor that a first part of the forced-air flow enters one of the first or second open spaces and at least one guiding element is arranged with respect to the crossing of the first and the second open spaces in such a way that the first part of the forced-air flow leaves and a second part of the forced-air flow enters the one of the first or second open spaces. A shielding element is arranged at another crossing of the first and the second open spaces so that substantially no air can leave or enter the one of the first or second open spaces.
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PCT/ISA/210—International Search Report—Jun. 15, 2007.
PCT/IPEA/409—International Preliminary Report on Patentability—Oct. 2, 2008.
PCT/ISA/237—Written Opinion of the International Searching Authority—Jun. 15, 2007.
Israelsson Tampe Stefan
Jacobson Björn
Löfgren Peter
Login Piotr
ABB Research Ltd.
Baisa Joselito
Franklin Eric J.
Mai Anh
Venable LLP
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