초록 ▼

An electro-mechanical device having an integral reflux-type cooler configured to conduct heat generated in a first member of the electro-mechanical device to a heat sink, while not exposing a second member of the device to refrigerant in the reflux cooler is provided. In some embodiments of the inve

An electro-mechanical device having an integral reflux-type cooler configured to conduct heat generated in a first member of the electro-mechanical device to a heat sink, while not exposing a second member of the device to refrigerant in the reflux cooler is provided. In some embodiments of the invention, the refrigerant is allowed to directly contact electrical windings, or a magnetic core of the electro-magnetic device for maximizing heat transfer. Other embodiments of the invention provide integral phase change material for heat storage capability, and allow flexibility in mounting the condenser of the reflux cooler remotely from the electro-mechanical device.

대표청구항 ▼

[ We claim:] [1.] An electro-mechanical device comprising:a) a movable element mounted for motion with respect to an axis and having an axially extending output shaft adapted for attachment to a driven load;b) a stationary stator element disposed about said movable element but separated therefrom by

[ We claim:] [1.] An electro-mechanical device comprising:a) a movable element mounted for motion with respect to an axis and having an axially extending output shaft adapted for attachment to a driven load;b) a stationary stator element disposed about said movable element but separated therefrom by an airgap, and having an electrical winding configured to exert an electromagnetic force for urging said movable element to move with respect to said axis when said winding is supplied with an electrical current;c) a housing disposed about and supporting said stator, and allowing said output shaft of said movable element to extend outside of said housing for attachment to said driven load;d) said housing further defining a sealed boiling chamber about said stator for containing a two-phase fluid;e) a two-phase fluid partially filling said boiling chamber and forming a liquid level defining a vapor space at an upper portion of said boiling chamber for containing a vapor constituent of said two-phase fluid, and a liquid space at a lower portion of said boiling chamber for containing a liquid constituent of said two-phase fluid;f) a condenser adapted for attachment in thermal contact with a heat sink;g) vapor conducting means for conducting the vapor constituent of said two-phase fluid from said boiling chamber to said condenser;h) downcomer means for conducting a condensed constituent of said two-phase fluid from said condenser back to said boiling chamber; andi) phase change material disposed in said boiling chamber for providing cooling of said two-phase fluid through latent heat absorption of the phase change material above a predetermined melting temperature of said phase change material.