GB1425460A - Gas-driven gas-bearing turbines - Google Patents

Gas-driven gas-bearing turbines

Info

Publication number
GB1425460A
GB1425460A GB5258072A GB5258072A GB1425460A GB 1425460 A GB1425460 A GB 1425460A GB 5258072 A GB5258072 A GB 5258072A GB 5258072 A GB5258072 A GB 5258072A GB 1425460 A GB1425460 A GB 1425460A
Authority
GB
United Kingdom
Prior art keywords
bearing
stator casing
rotor
support members
shaped
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
Application number
GB5258072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amalgamated Dental Co Ltd
Original Assignee
Amalgamated Dental Co Ltd
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 by Amalgamated Dental Co Ltd filed Critical Amalgamated Dental Co Ltd
Priority to GB5258072A priority Critical patent/GB1425460A/en
Priority to DE19732332313 priority patent/DE2332313A1/en
Priority to IT1270273A priority patent/IT992261B/en
Priority to CH1004973A priority patent/CH553914A/en
Priority to FR7325278A priority patent/FR2206786A5/fr
Priority to BR512973A priority patent/BR7305129D0/en
Priority to JP7887473A priority patent/JPS4978393A/ja
Publication of GB1425460A publication Critical patent/GB1425460A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/05—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with turbine drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/34—Non-positive-displacement machines or engines, e.g. steam turbines characterised by non-bladed rotor, e.g. with drilled holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Support Of The Bearing (AREA)

Abstract

1425460 Bearings AMALGAMATED DENTAL CO Ltd 18 June 1973 [14 Nov 1972] 52580/72 Heading F2A [Also in Division F1] The invention relates to a gas driven, gasbearing turbine and is described with reference to a dental turbine which comprises a stator casing 1 and a rotor 2 supported therein by two bearing members 15, 16 each independently and resiliently mounted in the stator casing by means of a pair of resilient support members 23 encircling the bearing member, each bearing member 15, 16 being of one-piece construction and provided with one or more apertures 26 extending from the outer to the inner surface thereof. The rotor 2 is formed with recesses which define blades 9 to which air under pressure is directed through passage 11 and nozzle 13 formed in the stem 12 which is secured to the stator casing 1, the air discharging from the blades through exhaust passage 14. Each bearing member 15, 16 is formed at its outer surface with annular grooves 22, 24, the resilient support members 23 being disposed in the outer grooves 22 so as to form a sealed chamber to which air under pressure is supplied from the passage 11 through bores 18, 19 the air passing from the chamber through bores 26 extending from the centre groove 24 to the bearing surface. The bearing members 15, 16 are formed of tungsten carbide or silicon nitride, and the support members 23 may be 0-rings as shown or L-shaped, U-shaped or V-shaped gaskets. One end of the stator casing is closed by a cap 5, the other end being open whereby a tool may be engaged in the bore 3a of the rotor.
GB5258072A 1972-11-14 1972-11-14 Gas-driven gas-bearing turbines Expired GB1425460A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB5258072A GB1425460A (en) 1972-11-14 1972-11-14 Gas-driven gas-bearing turbines
DE19732332313 DE2332313A1 (en) 1972-11-14 1973-06-26 TURBINE, IN PARTICULAR FOR DENTAL PURPOSES
IT1270273A IT992261B (en) 1972-11-14 1973-07-04 ROTATING MACHINE
CH1004973A CH553914A (en) 1972-11-14 1973-07-10 TURBINE, IN PARTICULAR FOR DENTAL PURPOSES.
FR7325278A FR2206786A5 (en) 1972-11-14 1973-07-10
BR512973A BR7305129D0 (en) 1972-11-14 1973-07-10 GAS BEARING TURBINE GAS
JP7887473A JPS4978393A (en) 1972-11-14 1973-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5258072A GB1425460A (en) 1972-11-14 1972-11-14 Gas-driven gas-bearing turbines

Publications (1)

Publication Number Publication Date
GB1425460A true GB1425460A (en) 1976-02-18

Family

ID=10464473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5258072A Expired GB1425460A (en) 1972-11-14 1972-11-14 Gas-driven gas-bearing turbines

Country Status (7)

Country Link
JP (1) JPS4978393A (en)
BR (1) BR7305129D0 (en)
CH (1) CH553914A (en)
DE (1) DE2332313A1 (en)
FR (1) FR2206786A5 (en)
GB (1) GB1425460A (en)
IT (1) IT992261B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007865A1 (en) * 2000-02-21 2001-09-13 Felch Florian Electrical energy generation system uses gas released from pressurized gas capsule for driving electromechanical turbine/generator stage
CN112096509A (en) * 2020-09-23 2020-12-18 萍乡北京理工大学高新技术研究院 Streamline tunnel type turbocharger adopting outline type air bearing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558540U (en) * 1978-07-04 1980-01-19
JPS558542U (en) * 1978-07-04 1980-01-19
AT400668B (en) * 1992-11-11 1996-02-26 Buermoos Dentalwerk DENTAL INSTRUMENT WITH AIR-POWERED TURBINE
JP4152553B2 (en) * 2000-02-10 2008-09-17 Ｔｈｋ株式会社 Spindle device with turbine rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007865A1 (en) * 2000-02-21 2001-09-13 Felch Florian Electrical energy generation system uses gas released from pressurized gas capsule for driving electromechanical turbine/generator stage
CN112096509A (en) * 2020-09-23 2020-12-18 萍乡北京理工大学高新技术研究院 Streamline tunnel type turbocharger adopting outline type air bearing

Also Published As

Publication number Publication date
IT992261B (en) 1975-09-10
CH553914A (en) 1974-09-13
FR2206786A5 (en) 1974-06-07
BR7305129D0 (en) 1974-10-22
JPS4978393A (en) 1974-07-29
DE2332313A1 (en) 1974-05-22

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed