US482397A - Ventilating-armature for dynamo-electric machines - Google Patents
Ventilating-armature for dynamo-electric machines Download PDFInfo
- Publication number
- US482397A US482397A US482397DA US482397A US 482397 A US482397 A US 482397A US 482397D A US482397D A US 482397DA US 482397 A US482397 A US 482397A
- Authority
- US
- United States
- Prior art keywords
- armature
- dynamo
- electric machines
- ventilating
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000969 carrier Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011796 hollow space material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Definitions
- My invention relates to a means for ventilating the armatures or armature-carriers of dynamo-electric machines or motors, so as to prevent injurious effects from heating.
- My invention is designed especially for application to the hollow armature or armature carrier of dynamoelectric machines upon which armature or carrier-coils of wire are wound.
- the invention is applicable to armature cores or carriers of any desired form, and is not limited in that respect.
- Figure l is a longitudinal section through the armature and the tubular extensions or conduits by which the current of air is introduced into and withdrawn from the interior of the armature.
- Fig. 2 is a longitudinal section of a modified form of the invention.
- S S indicates the armature-shaft revolving in suitable'bearings B B and provided with the ordinary driving-pulley P.
- the armature core or carrier indicated at G is shown as consisting of a hollow iron shellconstructed in one piece or made in two or more pieces joined together at their periphery and wound in a direction transverse to the armature-axis with strips of sheet-iron or with iron wire.
- the hubs of the hollow cylinder or carrier are secured to the shaft in any desired way.
- Extending from one of the armature-heads is a hollow cylinder T, embracingthearmatu reshaft, but separated therefrom by a space through which air may pass to the interior of the armature through openings O O, which, as indicated, pass through the hub of the armature-carrier and form a communication between the interior of the sleeve T and the interior space of the armature-carrier, At the opposite end of the carrier similar openings O O are formed which communicate with the interior of a sleeve T.
- These sleeves serve to support the conducting-Wire that is wound upon the armature parallel to the shaft and to keep the same out of contact with said shaft, at the same time leaving spaces for the introduction and withdrawal of the air.
- an air-chamber Q supported on the bearing B or otherwise mounted and formed, as shown, so as to almost close the end of the sleeve T, but at the same time to permit free rotation of the said sleeve.
- the chamber@ is supplied by a pipe P with a stream of air from a blower or fan F, connected with the pipe P and driven by any suitable power.
- the air passes through the chamber Q and from thence through the sleeve T to the inner space of the armature and thence through the sleeve T to the external air, thus producing a rapid and free circulation in the interior of the armature, so as to convey away any heat that may be produced during the operation of the machine.
- tubular extensions are formed by making the armature-shaft itself hollow.
- a wall or division At a portion of the shaft within the armature is interposed a wall or division, and to the sides of said division and at any desired point openings O O are formed to permit ingress and egress of air into the hollow space within the armature-carrier.
- the chamber Q and pipe ll are placed at one end of the shaft, as shown, the current of air passing in at one end and out of the other, as indicated by the arrows.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
(No Model.)
E. THOMSON. VBNTILATINC ARMATURBS FCR. DYNAMC ELECTRIC MACHINES.
Patented Sept. 13, 1892.
'ma mms uns co., rnurumo., wwwa-ran, n. c.
UNITED. I STATES PATENT OFFICE.
ELIHU THOMSON, OF LYNN, MASSACHUSETTS, ASSIGNOR TO THE THOMSON- HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.
VENTlLATlNG-ARMATURE FOR DYNAMO-ELECTRIC MACHINES.
SPECIFICATION forming part of Letters Patent No. 482,397, dated September 13, 1892.
Application iled April 2, 1885. Serial No. 160.999. (No model.)
To a/ZZ whom it may concern.-
Beit known that I, ELIHU THOMSON, a citi- Zen of the United States, and a' resident of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Ventilating-Armatures of Dynamo-Electric Machines, of which the following is a specification.
My invention relates to a means for ventilating the armatures or armature-carriers of dynamo-electric machines or motors, so as to prevent injurious effects from heating.
My invention is designed especially for application to the hollow armature or armature carrier of dynamoelectric machines upon which armature or carrier-coils of wire are wound.
The invention is applicable to armature cores or carriers of any desired form, and is not limited in that respect.
In the accompanying drawings, which illustrate the application of the invention to a hollow spherical or cylindrical armature of the form now employed by me, Figure l is a longitudinal section through the armature and the tubular extensions or conduits by which the current of air is introduced into and withdrawn from the interior of the armature. Fig. 2 is a longitudinal section of a modified form of the invention.
Referring to Fig. l, S S indicates the armature-shaft revolving in suitable'bearings B B and provided with the ordinary driving-pulley P.
The armature core or carrier indicated at G is shown as consisting of a hollow iron shellconstructed in one piece or made in two or more pieces joined together at their periphery and wound in a direction transverse to the armature-axis with strips of sheet-iron or with iron wire.
The conducting-wire, wound in a direction parallel with the axis, is omitted from the drawings for the sake of simplicity.
The hubs of the hollow cylinder or carrier are secured to the shaft in any desired way.
Extending from one of the armature-heads isa hollow cylinder T, embracingthearmatu reshaft, but separated therefrom by a space through which air may pass to the interior of the armature through openings O O, which, as indicated, pass through the hub of the armature-carrier and form a communication between the interior of the sleeve T and the interior space of the armature-carrier, At the opposite end of the carrier similar openings O O are formed which communicate with the interior of a sleeve T. These sleeves serve to support the conducting-Wire that is wound upon the armature parallel to the shaft and to keep the same out of contact with said shaft, at the same time leaving spaces for the introduction and withdrawal of the air.
In the drawings is shown an air-chamber Q, supported on the bearing B or otherwise mounted and formed, as shown, so as to almost close the end of the sleeve T, but at the same time to permit free rotation of the said sleeve. The chamber@ is supplied by a pipe P with a stream of air from a blower or fan F, connected with the pipe P and driven by any suitable power. The air passes through the chamber Q and from thence through the sleeve T to the inner space of the armature and thence through the sleeve T to the external air, thus producing a rapid and free circulation in the interior of the armature, so as to convey away any heat that may be produced during the operation of the machine.
In the modification of my inven tion shown in Fig. 2 the tubular extensions are formed by making the armature-shaft itself hollow. At a portion of the shaft within the armature is interposed a wall or division, and to the sides of said division and at any desired point openings O O are formed to permit ingress and egress of air into the hollow space within the armature-carrier. It is preferable to mount upon the armature-shaft a disk D, as indicated, so as to virtually divide the hollow space into two communicating apartments, and to thus cause a circulation of the air in such a way that it shall come into contact with the interior surfaces and to thus more effectually cool the armature. The chamber Q and pipe ll are placed at one end of the shaft, as shown, the current of air passing in at one end and out of the other, as indicated by the arrows. By reversing the action of the air-supply devices so as that they shall IOC work by exhaust instead of by pressure the the armature, a box or casingQ in which the operation will be the same, except that the end of one extension revolves, a pipe P', condirection of the air-current will be reversed. nected with said box, and a blower F, as and It will be observed that the hollow shaft S, for the purpose described. 15
5 Fig. 2, forms in effect the tubular extension, Signed at Lynn, in the county of Essex and performing all the functions of the cylinders State of Massachusetts, this 27th day of March,
T T of Fig. 1. A. D. 1885.
What I claim as my invention is- ELIHU THOMSON. The combination, with the hollow arma- Witnesses: Io ture, of the tubular extensions T T', encir- M. L. THOMSON,
cling the armature-shaft at opposite ends of W. O. WAKEFIELD.
Publications (1)
Publication Number | Publication Date |
---|---|
US482397A true US482397A (en) | 1892-09-13 |
Family
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Family Applications (1)
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US482397D Expired - Lifetime US482397A (en) | Ventilating-armature for dynamo-electric machines |
Country Status (1)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090080962A1 (en) * | 2007-09-26 | 2009-03-26 | 3M Innovative Properties Company | Writing instrument with sheet dispenser |
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0
- US US482397D patent/US482397A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090080962A1 (en) * | 2007-09-26 | 2009-03-26 | 3M Innovative Properties Company | Writing instrument with sheet dispenser |
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