Heat pipe for a solar collector
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United States of America Patent
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Oct 21, 2014
Grant Date -
May 13, 2010
app pub date -
Apr 7, 2008
filing date -
Apr 5, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A heat pipe comprises an evaporator section 5 having a radiation absorbing plate 6 a portion of an elongate tube 7, and a condenser section 10 at a distal end of the elongate tube 7 remote from the evaporator section 5. A flow control valve 20 is provided between the evaporator section 5 and the condenser section 10 to selectively interrupt communication between said sections when the temperature within the condenser section 10 exceeds a predetermined maximum. A temperature sensitive member, (coil of memory metal 34′, or discs 34′) acts between a support plate 26 and a seat 36 located on a valve pintle 30 to urge the valve head 22 towards the valve seat 24 when the temperature of the temperature sensitive member 34 exceeds a predetermined limit. A return spring 38 is provided to bias the valve head 22 away from the valve seat 24.
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