Absorber tube
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United States of America Patent
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Apr 3, 2018
Issued Date -
N/A
app pub date -
Feb 13, 2015
filing date -
Aug 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An absorber tube is provided that has a central metal tube, a glass cladding tube, and a glass-metal transition element. The metal tube and the glass-metal transition element are connected to each other by an expansion compensation device such that they can be displaced relative to each other in the longitudinal direction. The expansion compensation device is arranged at least partially in an annular space between the metal tube and the glass-metal transition element. In the annular space, at least one shielding device is arranged, which has a first annular disc-shaped segment arranged at an axial distance in front of the end face and covers at least the connection region of the attachment element and the inner end of the expansion compensation device.
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