Patent US3906261A successfully refreshed from Google Patents.
US3906261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear acceleration apparatus with cooling system
Assignee: Mitsubishi Electric Corp
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Filing: 1974-06-10
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Granted: 1975-09-16
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Expires: 1994-06-10
Abstract
Abstract A stator winding on an acceleration tube is immersed in a vaporizable cooling liquid and cooled through the generation of a vapor from the cooling medium due to heating of the winding. The vapor enters a condenser chamber disposed above the winding to be condensed. The condensate falls on the cooling liquid. To bring the cooling liquid into direct contact with a magnet wire for the winding and to permit the vapor to flow past the wire, the winding can be provided with radial and/or axial passageways for the cooling liquid. Further a cooling coil and partitions can be disposed above the winding in a container to provide a serpentine passageway for the vapor.
Inventors
- 👤 Shinzou Ogura
- 👤 Masatami Iwamoto
- 👤 Mitsuru Fukushima
- 👤 Kazuharu Oshio
- 👤 Tadashi Majima
- 👤 Toshiyuki Kaneda
- 👤 Hideo Nishii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:37
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/025; H02K9/00; H02K9/22; H02K9/225
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
204 words
A linear electric-motor type acceleration apparatus having a cooling system, comprising a tubular member, a stator winding means wound around a tubular member and capable of being electrically excited to establish a moving magnetic field to accelerate a body within the tubular member, a coolant container means, a body of liquid cooling medium capable of boiling to form a vapor accommodated in said coolant container means, said stator winding means and said tubular member being immersed in said cooling medium with said tubular member extending through said coolant container means, said stator winding means including a plurality of juxtaposed coil sections each of said coil sections including at least a radial passageway extending out of the coil section from the innermost portion thereof and filled with said cooling medium, said stator winding means in its electrically excited state generating heat to cause said cooling medium to boil and form vapor, and condenser means disposed above said coolant container means, and in fluid communication with said coolant container means for directing said vapor rising spontaneously from said coolant medium into and through said condenser means to be liquidized and for directing the liquidized medium to fall into said coolant container means by its own weight.
Claim 2
Dependent Claim
204 words
A linear electric-motor type acceleration apparatus having a cooling system, comprising a tubular member, a stator winding means wound around a tubular member and capable of being electrically excited to establish a moving magnetic field to accelerate a body within the tubular member, a coolant container means, a body of liquid cooling medium capable of boiling to form a vapor accommodated in said coolant container means, said stator winding means and said tubular member being immersed in said cooling medium with said tubular member extending through said coolant container means, said stator winding means including a plurality of juxtaposed coil sections each of said coil sections including at least a radial passageway extending out of the coil section from the innermost portion thereof and filled with said cooling medium, said stator winding means in its electrically excited state generating heat to cause said cooling medium to boil and form vapor, and condenser means disposed above said coolant container means, and in fluid communication with said coolant container means for directing said vapor rising spontaneously from said coolant medium into and through said condenser means to be liquidized and for directing the liquidized medium to fall into said coolant container means by its own weight.
Claim 3
Dependent Claim
60 words
An apparatus as claimed in claim 1 wherein said coil sections comprise a plurality of coils and a plurality of spacer members each having on opposite sides a plurality of recesses extending from the central portion to the periphery thereof, there being a spacer member between each pair of adjacent coils for separting said coils, said recesses being the passageways.
Claim 4
Dependent Claim
33 words
An apparatus as claimed in claim 1 wherein each of said coil sections has a portion thereof spaced from said tubular member to permit said cooling medium to contact the innermost portion thereof.
Claim 5
Dependent Claim
37 words
An apparatus as claimed in claim 1 wherein each of said coil sections includes a plurality of flat coils disposed radially of the tubular member with the coils spaced along said tubular member at predetermined samll intervals.
Claim 6
Dependent Claim
49 words
An apparatus as claimed in claim 1 wherein each of said coil sections comprises a multiple layer winding having a central radial gap extending through all the layers and an axially extending annular gap between each two layers of windings, said axially extending gaps opening into said radial gap.
Claim 7
Dependent Claim
102 words
An apparatus as claimed in claim 1 in which said condenser means comprises a condenser chamber opening upwardly from the upper portion of said coolant container means, a condensing medium coil extending through said condenser chamber, a plurality of baffle plates projecting into said condenser chamber from opposite walls thereof and at intervals from each other and alternately overlapping each other and through which said coil extends, said baffle plates defining a sinuous path for the vapor for passing the vapor over the coil, and collection means for collecting condensed cooling medium and directing it back into the body of cooling medium.
Claim 8
Dependent Claim
109 words
An apparatus as claimed in claim 6 in which said coil extends from the top of said condensing chamber downwardly toward the coolant container means and said baffle plates projecting into said condensing chamber from the sides thereof and being inclined downwardly in the direction in which they project toward the center of the condensing chamber, alternate baffle plates being inclined downwardly in one direction transversely of the direction in which they project and the remainder of the baffle plates being inclined downwardly in the other direction transversely of the direction in which they project, and said collection means comprising troughs on the inner ends of said baffle plates.
Claim 9
Dependent Claim
55 words
An apparatus as claimed in claim 6 in which said coil extends into said condensing chamber laterally thereof, and said baffLe plates projecting into said condensing chamber from the top and bottom thereof, said collection means comprising a bottom plate below said baffle plates having an aperture therein directed downward toward said coolant container means.
Claim 10
Dependent Claim
80 words
An apparatus as claimed in claim 1 in which said stator winding means has a structural component positioned in said cooling medium in a position for normally blocking the vapor generated in said cooling medium from reaching the free surface of the body of liquid cooling medium, said structural component having passageway means therein for permitting flow of the vapor so as to prevent accumulation of a body of vapor covering the heat dissipating surface of the stator winding means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |