GB2318157B - Method of manufacturing a rotor - Google Patents

Method of manufacturing a rotor

Info

Publication number
GB2318157B
GB2318157B GB9725042A GB9725042A GB2318157B GB 2318157 B GB2318157 B GB 2318157B GB 9725042 A GB9725042 A GB 9725042A GB 9725042 A GB9725042 A GB 9725042A GB 2318157 B GB2318157 B GB 2318157B
Authority
GB
United Kingdom
Prior art keywords
rotor
manufacturing
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 - Fee Related
Application number
GB9725042A
Other versions
GB2318157A (en
GB9725042D0 (en
Inventor
Masao Tateno
Koji Tomita
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.)
GKN Driveline Japan Ltd
Original Assignee
Tochigi Fuji Sangyo KK
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
Priority claimed from JP8248495A external-priority patent/JP3594691B2/en
Priority claimed from JP18921995A external-priority patent/JP3569040B2/en
Application filed by Tochigi Fuji Sangyo KK filed Critical Tochigi Fuji Sangyo KK
Priority claimed from GB9607232A external-priority patent/GB2299622B/en
Publication of GB9725042D0 publication Critical patent/GB9725042D0/en
Publication of GB2318157A publication Critical patent/GB2318157A/en
Application granted granted Critical
Publication of GB2318157B publication Critical patent/GB2318157B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
GB9725042A 1995-04-07 1996-04-04 Method of manufacturing a rotor Expired - Fee Related GB2318157B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8248495A JP3594691B2 (en) 1995-04-07 1995-04-07 Screw compressor
JP18921995A JP3569040B2 (en) 1995-07-25 1995-07-25 Rotor of screw type compressor, core for rotor casting, and method of manufacturing rotor
GB9607232A GB2299622B (en) 1995-04-07 1996-04-04 Rotor assembly for a screw type compressor and destructible core for casting a rotor

Publications (3)

Publication Number Publication Date
GB9725042D0 GB9725042D0 (en) 1998-01-28
GB2318157A GB2318157A (en) 1998-04-15
GB2318157B true GB2318157B (en) 1999-04-14

Family

ID=27268226

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9725038A Expired - Fee Related GB2318156B (en) 1995-04-07 1996-04-04 Screw-type compressor
GB9725042A Expired - Fee Related GB2318157B (en) 1995-04-07 1996-04-04 Method of manufacturing a rotor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9725038A Expired - Fee Related GB2318156B (en) 1995-04-07 1996-04-04 Screw-type compressor

Country Status (1)

Country Link
GB (2) GB2318156B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6681835B2 (en) * 2001-04-27 2004-01-27 Ishikawajima-Harima Heavy Industries Co., Ltd. Method and apparatus for manufacturing supercharger rotor
GB2608379A (en) * 2021-06-29 2023-01-04 Edwards Ltd Screw-type vacuum pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740050A (en) * 1953-05-16 1955-11-09 Saurer Ag Adolph Improvements in cast rotors for rotary piston compressors
GB927704A (en) * 1959-04-23 1963-06-06 N S U Motorenwerke Ag Improvements in or relating to built-up rotors for rotary engines, pumps, compressors and the like
GB2299621A (en) * 1995-04-03 1996-10-09 Tochigi Fuji Sangyo Kk Rotor for fluid machine
GB2304380A (en) * 1995-08-17 1997-03-19 Tochigi Fuji Sangyo Kk Chucking flats formed in the end of a hollow toothed screw rotor.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB325425A (en) * 1929-04-08 1930-02-20 Alvis Car & Engineering Co Rotary compressors for supercharging internal-combustion engines
DE2553222C3 (en) * 1975-11-27 1979-03-15 Demag Ag, 4100 Duisburg Adjustable screw compressor
IT1179910B (en) * 1984-04-16 1987-09-16 Gilardini Spa VOLUMETRIC COMPRESSOR FOR ENDOTHERMAL MOTOR VEHICLE SUPPLY
GB9200217D0 (en) * 1992-01-07 1992-02-26 Snell Michael J Water turbines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740050A (en) * 1953-05-16 1955-11-09 Saurer Ag Adolph Improvements in cast rotors for rotary piston compressors
GB927704A (en) * 1959-04-23 1963-06-06 N S U Motorenwerke Ag Improvements in or relating to built-up rotors for rotary engines, pumps, compressors and the like
GB2299621A (en) * 1995-04-03 1996-10-09 Tochigi Fuji Sangyo Kk Rotor for fluid machine
GB2304380A (en) * 1995-08-17 1997-03-19 Tochigi Fuji Sangyo Kk Chucking flats formed in the end of a hollow toothed screw rotor.

Also Published As

Publication number Publication date
GB9725038D0 (en) 1998-01-28
GB2318156B (en) 1999-04-14
GB2318156A (en) 1998-04-15
GB2318157A (en) 1998-04-15
GB9725042D0 (en) 1998-01-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080404