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Electric motors

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Image
Published: 01 December 1995
Fig. 2-70 Coil body castings for electric motors. Weights are 120 and 85 lb (54 and 38 kg). More
Image
Published: 01 November 2019
Fig. 1 Carbon contacts at the commutator of an electric motor. Top image: new carbon pieces, planar contact, submitting high-level pulses; mid image: after the shape adaption of the carbon pieces to the round collector, the pulse level reduces; bottom image: the pulses can be easily suppressed More
Image
Published: 01 June 1983
Figure 3.2 Fiberglass/epoxy support cone for a superconducting electrical motor. More
Image
Published: 01 December 2006
Fig. 2.47 AlMgSi0.5 extruded section for electric motor housings (a) and a large section for the console of a high-speed printer (b). Source: Alusuisse More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270197
EISBN: 978-1-62708-301-0
... Abstract One of the rotor bearings in an electric motor failed, producing excessive vibrate. The bearing was removed and disassembled, revealing craters and bruises on the inner ring raceway and balls along with evidence of melting and burning of metal. Scanning electron microscopy revealed...
Image
Published: 01 August 2012
Fig. 12.11 Direct drives and their energy efficiencies: (a) constant-rpm electric motor and constant-displacement pump, (b) constant-rpm electric motor and variable-displacement pump, and (c) variable-rpm electric motor and constant-displacement pump. p , pressure. Source: Ref 12.22 More
Image
Published: 30 April 2020
Fig. 6.12 Cross-sectional view of a small mechanical compaction press, where an electric motor drives the system. The enlarged view sketches the type of tool set that would be inserted in this press. More
Image
Published: 01 December 2003
Fig. 4 Electric fan motor treated by the Nitrotec process (right) and zinc-plated (left). Both were subjected to a 250 h neutral salt spray test. More
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Published: 01 January 2022
Fig. 13.8 (a) Engine, motor, and generator locations in a plug-in hybrid electric vehicle. (b) Battery pack, traction motor, and transmission location in a battery electric vehicle. Source: Ref 1 More
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Published: 01 January 2022
Fig. 13.13 Positions of the battery and motor in electric vehicles, (a and c) battery electric vehicles, (b) plug-in hybrid electric vehicle More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320305
EISBN: 978-1-62708-332-4
... of growth of battery electric vehicles (BEVs). The size of the engine and the size of the electric motor bear an inverse relationship to each other, as illustrated in Fig. 13.7 . The conventional gasoline vehicles of today have no need for an electric motor. The BEV has no need for an engine. The HEV has...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... into structures, even if they were assumed to be sealed. Continuous vibrations and mechanical shocks during operation. Outgassing from rubber seals, tires and plastics find its way into electronic circuits. Carbon contact pads in numerous electric (servo-) motors (for instance for window lifts, seat...
Book Chapter

By Eren Billur
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400181
EISBN: 978-1-62708-316-4
... (tank), electric motor, pump, valves, and cylinder ( Fig. 12.1 ). Hydraulic presses are more versatile than mechanical presses, because the force and stroke can be controlled easily. These presses are load-restricted machines; that is, their capability for carrying out a forming operation is limited...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.9781627083324
EISBN: 978-1-62708-332-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270072
EISBN: 978-1-62708-301-0
... a study of the section drawing supplied, it could be inferred that an improper assembly of electric motor and the roller bearing can cause this type of failure. This can be confirmed by examining the state of damage to the roller bearings and the corresponding damage on the inside of the hub. Conclusion...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300163
EISBN: 978-1-62708-323-2
... on the coefficient of friction of copper (Cu) in continuous unlubricated sliding on type 316 stainless steel (SS) Incredibly, copper is one of the most rubbed metals when used as a commutator in electric motors. The copper commutator rotates in contact with graphite brushes and the graphite brush material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... diagrams. aluminum alloys electric motor housings hacksaw blade phase diagrams wrought stainless steel ALLOY PHASE DIAGRAMS are useful to metallurgists, materials engineers, and materials scientists in four major areas: (1) development of new alloys for specific applications, (2) fabrication...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... summarizes the latest developments in servo-drive presses. In an electric servo motor, the angular position of the output shaft is determined by the duration of the current pulses provided by the controller. Thus, the output shaft can be rotated in both directions, can be stopped with precision at any...
Image
Published: 01 June 1988
Fig. 4.15 Fully enclosed, horizontal motor-generator set that is water cooled Source: Westinghouse Electric Corp. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220047
EISBN: 978-1-62708-341-6
...-generator systems utilized air cooling, but water-cooled heat exchangers built within the unit shell have since become standard. Fig. 4.15 Fully enclosed, horizontal motor-generator set that is water cooled Source: Westinghouse Electric Corp. Fig. 4.16 Vertical motor-generator set Source...