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Title: Hermatically sealed motor blower unit with stator inside hollow armature

Abstract

13. A hermetically sealed motor blower unit comprising, in combination, a sealed housing having a thrust plate mounted therein and having a re-entrant wall forming a central cavity in said housing, a rotor within said housing, said rotor comprising an impeller, a hollow shaft embracing said cavity and a thrust collar adapted to cooperate with said thrust plate to support the axial thrust of said shaft, one or more journal bearings within said housing for supporting the radial load of said shaft and electric motor means for rotating said rotor, said motor means comprising a motor-stator located within said cavity and adapted to cooperate through a portion of said re-entrant wall with a motor-rotor mounted within said hollow shaft, the portion of said re-entrant wall located between said motor-stator and said motor-rotor being made relatively thin to reduce electrical losses, the bearing surfaces of said thrust plate, thrust collar and journal bearings being in communication with the discharge of said impeller, whereby fluid pumped by said impeller can flow directly to said bearing surfaces to lubricate them.

Inventors:
 [1]
  1. New York, NY
Issue Date:
Research Org.:
Columbia Univ., New York, NY (United States)
OSTI Identifier:
862449
Patent Number(s):
3933416
Assignee:
Donelian; Khatchik O. (New York, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
DOE Contract Number:  
W-7405-ENG-50
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hermatically; sealed; motor; blower; unit; stator; inside; hollow; armature; 13; hermetically; comprising; combination; housing; thrust; plate; mounted; therein; re-entrant; wall; forming; central; cavity; rotor; impeller; shaft; embracing; collar; adapted; cooperate; support; axial; journal; bearings; supporting; radial; load; electric; means; rotating; motor-stator; located; portion; motor-rotor; relatively; reduce; electrical; losses; bearing; surfaces; communication; discharge; whereby; fluid; pumped; flow; directly; lubricate; thrust plate; hollow shaft; plate mounted; thrust collar; wall forming; bearing surfaces; hermetically sealed; electric motor; sealed housing; motor means; bearing surface; reduce electrical; mounted therein; fluid pump; axial thrust; journal bearing; means comprising; sealed motor; motor blower; electrical losses; unit comprising; fluid pumped; hermetically seal; hermatically sealed; radial load; reduce electric; wall form; blower unit; /417/310/415/

Citation Formats

Donelian, Khatchik O. Hermatically sealed motor blower unit with stator inside hollow armature. United States: N. p., 1976. Web.
Donelian, Khatchik O. Hermatically sealed motor blower unit with stator inside hollow armature. United States.
Donelian, Khatchik O. Tue . "Hermatically sealed motor blower unit with stator inside hollow armature". United States. https://www.osti.gov/servlets/purl/862449.
@article{osti_862449,
title = {Hermatically sealed motor blower unit with stator inside hollow armature},
author = {Donelian, Khatchik O},
abstractNote = {13. A hermetically sealed motor blower unit comprising, in combination, a sealed housing having a thrust plate mounted therein and having a re-entrant wall forming a central cavity in said housing, a rotor within said housing, said rotor comprising an impeller, a hollow shaft embracing said cavity and a thrust collar adapted to cooperate with said thrust plate to support the axial thrust of said shaft, one or more journal bearings within said housing for supporting the radial load of said shaft and electric motor means for rotating said rotor, said motor means comprising a motor-stator located within said cavity and adapted to cooperate through a portion of said re-entrant wall with a motor-rotor mounted within said hollow shaft, the portion of said re-entrant wall located between said motor-stator and said motor-rotor being made relatively thin to reduce electrical losses, the bearing surfaces of said thrust plate, thrust collar and journal bearings being in communication with the discharge of said impeller, whereby fluid pumped by said impeller can flow directly to said bearing surfaces to lubricate them.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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