초록 ▼

Relatively small diameter heat pipes having generally horizontally arranged evaporator sections and inclined or vertically oriented condenser sections are provided with a flow separator for conducting working fluid vapor from the evaporator section to the condenser section and liquid working fluid i

Relatively small diameter heat pipes having generally horizontally arranged evaporator sections and inclined or vertically oriented condenser sections are provided with a flow separator for conducting working fluid vapor from the evaporator section to the condenser section and liquid working fluid is returned to the evaporator section in the flow passage formed between an outer cylindrical tubular member and an inner cylindrical member forming the flow separator. The flow separator may be formed as a cylindrical tube positioned within the outer tubular envelope such that the ends of the flow separator are open and are spaced from the end closures of the outer tube by a small distance. The hydraulic radius of the inner tube flow path is equal to or greater than the hydraulic radius of the annular passage formed between the tubes.

대표청구항 ▼

A heat transfer device comprising: a tubular member closed at both ends to form an enclosed chamber for containing a quantity of working fluid operable to be in a liquid state and a vapor state at the working temperature of the device, said tubular member having a generally horizontally extending ev

A heat transfer device comprising: a tubular member closed at both ends to form an enclosed chamber for containing a quantity of working fluid operable to be in a liquid state and a vapor state at the working temperature of the device, said tubular member having a generally horizontally extending evaporator section at a first end and a condenser section at a second end in spaced relationship to the first end, said condenser section forming an angular extension upwardly of the evaporator section, a flow separator means for dividing the tubular member into adjust passage surrounded by a second passage, the first passage being formed a distance of not less than 90% of the inner dimension of the tubular member from the tubular member\s first and second closed ends for open communication with the second passage, said first passage having an inner dimension defining the cross section of said flow path at least 45% of the inner dimension of the said tubular member, said first passage operative to pass working fluid in the vapor state from the evaporator section into the second passage at the condenser section for condensation to the liquid state and return through the second passage to the evaporator section whereby during operation of said heat pipe heat is transferred between said sections.