N/Dv. 3~ f93 jj.
`IMPROVED COOLING SYSTEM
`DYNAMO ELECTRIC MACHINE WITH
`Filed April 7, lBi0
`
`Petitioners' Exhibit 1006, pg. 1
`
`

`

`Patented Nov. 3, 1931
`
`1, 830, 453
`
`UNITED STATES PATENT OFFICE
`VIXEN'T 6. ~PLE, OF DAYTON, OHIO
`DYNAMO ELECTRIC 3KLCHINE WITH IMPROVE33 GOOLIM6 SYSTE3K
`
`60
`
`lied April V, 3939. Serial Mo. 449, 999.
`Application
`relates to dynamo electric
`This invention
`to those which are
`machines and particularly
`subjected in operation to unusually high tem-
`perature.
`is to provide
`6 The object of the irivention
`the hous-
`a dynamo electric machine wherein
`ing may be completely closed, but which has
`novel cooling means capable of carrying ofi
`it
`an unusual amount of heat, thus adapting
`air is
`I~ to situations where
`the surrounding
`either too hot or contains dust or other for-
`to the interior of the
`eign matter detrimental
`motor, or to situations. where a high percent-
`age of overload must be carried.
`I attain this object in the structure herein-
`embodiment
`after described, an illustrative
`being shown in the drawings wherein-
`Fig. 1 is an elevation of a niotor constructed
`to my invention.
`according
`Fig. 9 is an axial section through the motor.
`refer to similar parts
`'Similar numerals
`the several views.
`throughout
`The stator element 10 compris'es a mag-
`netizable core 11 composed of lamina 19,
`windings 18, a cooling coil 14 of metal tubing
`wound about and in contact with the stator
`core, and a housing 16 of plastic comjiound
`the several
`the core around.
`molded about
`and
`turns of the cooling core and surrounding
`the interstices of the winding.
`30 penetrating
`is
`the housing
`The compound composing
`preferably of a kind having a high degree of
`heat conductivity but a low degree of elec-
`so that the portion sepa-
`trical conductivity
`95 rating the several tu'ms of the winding wilt
`insulate: one turn from another
`electrically
`the winding from
`and. the portions separating
`the coolirig coil will rapidly convey the heat
`from the. winding to the cooling coil.
`In constructing. thi stator element the core
`11 is fir'st made by assembling and securing
`together a sufhcient. number of the laminae
`1P. , then the winding 18 is put on the core.
`A length of metal
`is then wound
`tubing
`the
`4~ around. a suitable mandrel
`to compose
`cooling coil 14, :the' ends of which are left
`extending as at 1T and 1S. The cooling coil
`may first be filled with natural resin or other
`be
`filler which may afterwards
`suitable
`then placed
`readily melted and
`removedy
`
`the wound core preferably
`around
`tightly
`against it, whereupon
`the structure
`is placed
`to support
`the several
`in a mold adapted
`parts in proper spaced relation, and the plas-
`tic compound
`is compressed
`and 59
`through
`about the core, winding and cooling coil to
`fill all voids within
`the winding and between
`covering the.
`the core and coil, completely
`the housing 16 dosed
`structure and forming
`at the one end as at, 19.
`is hardened while'
`The plastic compound
`in the mold after which the
`under pressure
`therefrom. The filler
`is removed
`structure
`it. being
`in the cooling coil, which prevented
`crushed while molding was being efFected, is e5
`then removed and the stator element is com-
`plete.
`A. bearing head. PO is secured to the open
`end of the stator element by bolts 21 and
`nuts 99. Head 20 carries two widely spaced &o
`apart bearings 98 within which shaft 24 is
`rotatably supported. The rotor 26 is secured
`fashion to shaft 94 by nut K.
`in overhung
`the ends 17 and 18 of cooling
`In operation
`coil 14 are connected to a source of supply of &&
`a suitable cooling fiuid, as for instance
`to a
`line, and during operation
`city water supply
`of the motor the coolant is constantly per-
`the coil. By a
`to circulate
`through
`mitted
`suitable valve in the line the degree to which 80
`the motor is cooled may be regulated.
`Because of the fact that molding material
`havirig high heat. conducting properties has
`been selected for housing 16, the heat
`is
`the winding 18 85
`from
`transferred
`readily
`and from the core 11 to the cooling coil 14,
`the winding,
`since this material penetrates
`thereof,
`turns
`individual
`the
`surrounding
`and also extends completely around the core-
`90
`and the turns of the cooling coil.
`Having described an "embodiment of my
`invention, I claim:
`1. A dy~namo electric machine having cool-
`ing facilities comprising, a winding, a coil
`to have a coolant 13
`of hollow
`tubing adapted
`adjacent said wind-
`therethrough
`circulated
`continuous mass of
`ing and a substantially
`insulation having high heat conductive prop-
`and covering said wind-
`erties penetrating
`said winding and coil, &
`ing and surrounding
`
`Petitioners' Exhibit 1006, pg. 2
`
`

`

`1) 880)45V
`
`9. A dynamo electric machine have cool-
`ing facilities comprising, a housing of mold-
`ed insulation having high heat conductive
`properties, a winding, and a coil of hollow
`6 tubmg adapted to have a coolant circulated
`said
`said winding,
`adjacent
`therethrough
`in the
`and said coil being buried
`winding
`composing said housing.
`insulation
`3. A. dynamo electric machine having cool-
`10 ing facilities comprising, a completely en-
`closed housing of molded
`insulating ma-
`terial having high heat conducting proper-
`core, a winding on said
`ties, a magnetizable
`core, and a coil of hollow metal tubing sur-
`&~ rounding said core and winding and adapted
`to have a coolant circulated
`therethrough
`said core, winding and coil being imbedded
`in and completely surrounded by the insula-
`tion composing said housing.
`In testimony whereof I afBx my signature.
`VINCENT 6. APPLE.
`
`30
`
`40
`
`80
`
`Petitioners' Exhibit 1006, pg. 3
`
`