초록 ▼

Well bore logging apparatus including electrical components cooling apparatus. An operating chamber and a heat sink chamber are incorporated. A heat transfer chamber encloses both operating chamber and heat sink chamber. A wicking material fills a portion of the transfer chamber to be in thermal con

Well bore logging apparatus including electrical components cooling apparatus. An operating chamber and a heat sink chamber are incorporated. A heat transfer chamber encloses both operating chamber and heat sink chamber. A wicking material fills a portion of the transfer chamber to be in thermal connection with both operating chamber and heat sink chamber. The heat sink chamber contains a heat sink material. A heat transfer medium is contained in the heat transfer chamber which is vaporized by heat from the operating chamber, then condensed by the heat sink medium to be absorbed into the wicking member and transported through the wicking member by capillary action back to the operating chamber for revaporization. Heat transfer chamber is isolated from operating chamber.

대표청구항 ▼

In wellbore logging apparatus including heat transfer apparatus for cooling enclosed electrical components, the combination comprising: (a) an electrical components operating chamber sealed from the remainder of said heat transfer apparatus and defined by a chamber entry opening, a first section of

In wellbore logging apparatus including heat transfer apparatus for cooling enclosed electrical components, the combination comprising: (a) an electrical components operating chamber sealed from the remainder of said heat transfer apparatus and defined by a chamber entry opening, a first section of an elongated inner housing, and a first bulkhead; (b) a sealed heat sink chamber defined by a second section of said inner housing, said first bulkhead, and a second bulkhead; (c) a self-contained and sealed heat transfer chamber defined by an outer housing, said inner housing, said second bulkhead and a third bulkhead as being a generally annular space terminating into a cylindrical space; (d) said heat transfer chamber completely enclosing said first section and said second section of said inner housing in heat conducting relationship; (e) wicking means occupying a selected portion of said transfer chamber along its length to effect efficient transfer of liquid within said heat transfer chamber to a first wall section adjacent said operating chamber and to permit passage of vapor from said first wall section to said second section on said heat sink chamber; (f) a heat sink medium disposed within said heat sink chamber with efficient heat transfer relationship from said heat transfer chamber to said heat sink medium through said second section; and (g) a heat transfer medium disposed within said heat transfer chamber and operative (1) to be vaporized from a liquid into vapor by heat received from said first section on said operating chamber, (2) to be passed as a vapor to the vicinity of said second section on said heat sink chamber, (3) to be condensed from said vapor into a liquid through heat removal by said heat sink medium, and (4) to be drawn as a liquid through said wicking means back to said first wall section of said outer housing adjacent to said operating chamber to be again vaporized.