1
Emil D Jarczynski: Liquid cooling the rotor of an electrical machine. General Electric Company, Nixon & Vanderhye, February 23, 1993: US05189325 (43 worldwide citation)

At least one liquid coolant passage is disposed within at least a pair of pole bodies in an electrical machine rotor. The liquid coolant passage is thermally coupled to pole loss heat caused by eddy currents and/or windage in the radially outermost portion of the rotor pole bodies. A rotatable liqui ...


2
Bharat Bagepalli, Gary R Barnes, Aniruddha D Gadre, Patrick L Jansen, Charles G Bouchard Jr, Emil D Jarczynski, Jivtesh Garg: Wind turbine generators having wind assisted cooling systems and cooling methods. General Electric Company, Nixon & Vanderhye PC, September 23, 2008: US07427814 (41 worldwide citation)

A wind generator includes: a nacelle; a hub carried by the nacelle and including at least a pair of wind turbine blades; and an electricity producing generator including a stator and a rotor carried by the nacelle. The rotor is connected to the hub and rotatable in response to wind acting on the bla ...


3
Emil D Jarczynski, Rebecca A Nold, William H Boardman IV: Pressure equalizer and method for reverse flow ventilated armature in power generator. General Electric Co, Nixon & Vanderhye, May 27, 1997: US05633543 (20 worldwide citation)

In a ventilated cooling system for a generator, the cooling ducts in the stator are arranged to control the flow of cooling gases through the stator. The ducts in the stator extend radially and direct cooling gases from the outer periphery of the stator to its inner cylindrical surface. Cooling gase ...


4
William H Boardman, Alexander G Beckford, Emil D Jarczynski, Robert G Hamilton: Reverse flow ventilation system with stator core center discharge duct and/or end region cooling system. General Electric Company, Nixon & Vanderhye, July 29, 1997: US05652469 (18 worldwide citation)

A rotating electrical machine with a reverse flow ventilation system is constructed with one or more discharge ducts at the center of the stator core to reduce the air gap pressure and promote more uniform cooling. In a second embodiment, discharge ducts are provided axially displaced from the cente ...


5
Christopher A Kaminski, Emil D Jarczynski, William D Gerstler, Norman J Suguitan, Hendrik P J de Bock: Heat transfer enhancement of dynamoelectric machine rotors. General Electric Company, James W Pemrick, Ernest G Cusick, Frank A Landgraff, September 7, 2010: US07791230 (1 worldwide citation)

A rotor is provided for a dynamoelectric machine having one or more windings. The windings have one or more turns, and the turns have one or more outlet ducts that are located near a chimney. When the outlet ducts are stacked one on top of another, they form substantially radially oriented passages. ...


6
Emil D Jarczynski, Norman J Suguitan, William D Gerstler, Christopher Anthony Kaminski, Hendrik P J de Bock: Heat transfer enhancement of ventilation chimneys for dynamoelectric machine rotors. General Electric Company, James W Pemrick, Ernest G Cusick, Frank A Landgraff, October 19, 2010: US07816825

A cooling gas ventilation chimney is provided for enhancing the heat transfer of an end region of a dynamoelectric machine. The dynamoelectric machine includes a rotor having a plurality of radial slots. A plurality of coils are seated in the radial slots, and the coils form a plurality of radially ...


7
Emil D Jarczynski: Liquid cooling rator of electrical machine. General Electric Co, LIN DAOTIANG, January 1, 1992: CN91103982

At least one cooling liquid path is arranged to at least a pair of magnetic pole bodies within a rotor of an electric machinery. A cooling liquid path is thermally coupled with heat of magnetic pole loss due to an eddy current and/or wind friction at the outer most circumference in the radius direct ...


8
Emil D Jarczynski: Stator cooling system for electrical machinery. General Electric Co, LIN DAOTIANG, January 1, 1992: CN91103999

Electrical machines, such as electrical power generators, motors and the like, include an especially adapted cooling system for removing heat generated in the electromagnetic core during operation. The cooling system preferably includes a number of thermally conducting laminations interposed between ...


9
Ronald S Bunker, Todd G Wetzel, Emil D Jarczynski: Generator stator cooling design with concavity surfaces. Banner & Witcoff, July 4, 2002: US20020084703-A1

A stator core assembly comprising adjacent packages of stacked lamination sheets that are separated by a plurality of radially extending spacer blocks, and each adjacent pair of spacer blocks define in cooperation with adjacent axially spaced laminations, a plurality of radial cooling ducts, each du ...


10
Bharat Bagepalli, Gary R Barnes, Aniruddha D Gadre, Patrick L Jansen, Charles G Bouchard, Emil D Jarczynski, Jivtesh Garg: Wind turbine generators having wind assisted cooling systems and cooling methods. General Electric Company, Nixon & Vanderhye PC, September 27, 2007: US20070222223-A1

A wind generator includes: a nacelle; a hub rotatably carried by the nacelle and including at least a pair of wind turbine blades; and an electricity producing generator including a stator and a rotor carried by the nacelle. The rotor is connected to the hub and rotatable in response to wind acting ...