CH564873A4 - Force feed air-cooled electric machine - has fan circulating cooling air through stator-rotor cores and over outer heat exchanger - Google Patents

Force feed air-cooled electric machine - has fan circulating cooling air through stator-rotor cores and over outer heat exchanger

Info

Publication number
CH564873A4
CH564873A4 CH564873D CH564873D CH564873A4 CH 564873 A4 CH564873 A4 CH 564873A4 CH 564873 D CH564873 D CH 564873D CH 564873 D CH564873 D CH 564873D CH 564873 A4 CH564873 A4 CH 564873A4
Authority
CH
Switzerland
Prior art keywords
heat exchanger
stator
air
electric machine
cooled electric
Prior art date
Application number
CH564873D
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of CH564873A4 publication Critical patent/CH564873A4/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/351—Working by laser beam, e.g. welding, cutting or boring for trimming or tuning of electrical components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
    • G04F5/063—Constructional details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Lasers (AREA)

Abstract

The air cooled electric machine has a fan mounted at one end of the rotor to draw cool air through the stator/rotor assembly to an antechamber. From the antechamber the fan draws out the warm air and passes it through to a second chamber lying along the outside surface of the stator assembly. The air leaves this second chamber radially through slits and enters the heat exchanger. After leaving the heat exchanger it passes back to the stator/rotor assembly. The heat exchanger consisting of axially parallel pipes carrying a cooling fluid. The heat exchanger is divided into segments distributed around the entire outside surface of the machine.
CH564873D 1973-04-19 1973-04-19 Force feed air-cooled electric machine - has fan circulating cooling air through stator-rotor cores and over outer heat exchanger CH564873A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH564873A CH604268B5 (en) 1973-04-19 1973-04-19

Publications (1)

Publication Number Publication Date
CH564873A4 true CH564873A4 (en) 1977-08-15

Family

ID=4297103

Family Applications (2)

Application Number Title Priority Date Filing Date
CH564873A CH604268B5 (en) 1973-04-19 1973-04-19
CH564873D CH564873A4 (en) 1973-04-19 1973-04-19 Force feed air-cooled electric machine - has fan circulating cooling air through stator-rotor cores and over outer heat exchanger

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH564873A CH604268B5 (en) 1973-04-19 1973-04-19

Country Status (7)

Country Link
JP (1) JPS5014288A (en)
CH (2) CH604268B5 (en)
DE (1) DE2335495B2 (en)
FR (1) FR2226257B1 (en)
GB (1) GB1446806A (en)
IT (1) IT1009891B (en)
NL (1) NL7405284A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4875924A (en) * 1972-01-12 1973-10-12
JPS5199219U (en) * 1975-02-08 1976-08-09
JPS5199220U (en) * 1975-02-08 1976-08-09
FR2319242A1 (en) * 1975-07-25 1977-02-18 Thomson Csf Control of charged particle machining of substrate - is particularly for thickness control and uses substrate resonant frequency
JPS5215285A (en) * 1975-07-25 1977-02-04 Seiko Instr & Electronics Ltd Method of processing piezo-electric oscillator
CH588169A5 (en) * 1975-09-12 1977-05-31 Suisse Horlogerie
JPS5759649Y2 (en) * 1976-12-24 1982-12-20
CH630747A5 (en) * 1979-01-18 1982-06-30 Ebauches Sa METHOD FOR ADJUSTING THE FREQUENCY OF A RESONATOR AND RESONATOR WITH ADJUSTED FREQUENCY OBTAINED BY THE IMPLEMENTATION OF THIS PROCESS.
US4638205A (en) * 1980-05-06 1987-01-20 Tdk Electronics Co., Ltd. Piezo-electric transducer
US4401876A (en) 1980-05-20 1983-08-30 Martin Cooper Working gemstones
US4455500A (en) * 1983-07-28 1984-06-19 Western Geophysical Company Of America Sensitivity and capacitance adjustment method for piezoelectric accelerometers
FR2557732B1 (en) * 1983-12-28 1986-04-11 Lefevre Rene METHOD FOR PRODUCING MINIATURE PIEZOELECTRIC DEVICES USING LASER MACHINING AND DEVICES OBTAINED BY THIS PROCESS
US4650619A (en) * 1983-12-29 1987-03-17 Toshiba Ceramics Co., Ltd. Method of machining a ceramic member
US5138214A (en) * 1989-12-27 1992-08-11 Matsushita Electric Industrial Co., Ltd. Piezoelectric transducer and method of adjusting oscillation frequency thereof
US5932119A (en) 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
CN109986702A (en) * 2017-12-29 2019-07-09 晶石科技(中国)股份有限公司 A kind of wrist-watch sapphire glass cutting processing technique

Also Published As

Publication number Publication date
GB1446806A (en) 1976-08-18
NL7405284A (en) 1974-10-22
FR2226257B1 (en) 1976-10-08
JPS5014288A (en) 1975-02-14
IT1009891B (en) 1976-12-20
DE2335495A1 (en) 1975-01-02
FR2226257A1 (en) 1974-11-15
DE2335495B2 (en) 1976-07-29
CH604268B5 (en) 1978-08-31

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