EP0302676A2 - Flügel für Rotoren - Google Patents

Flügel für Rotoren Download PDF

Info

Publication number
EP0302676A2
EP0302676A2 EP88307050A EP88307050A EP0302676A2 EP 0302676 A2 EP0302676 A2 EP 0302676A2 EP 88307050 A EP88307050 A EP 88307050A EP 88307050 A EP88307050 A EP 88307050A EP 0302676 A2 EP0302676 A2 EP 0302676A2
Authority
EP
European Patent Office
Prior art keywords
rotor
vanes
composition
carbon fibre
lubricant
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.)
Granted
Application number
EP88307050A
Other languages
English (en)
French (fr)
Other versions
EP0302676A3 (en
EP0302676B1 (de
Inventor
Richard Wood
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.)
Rotocold Holdings Ltd
Original Assignee
Rotocold Holdings Ltd
Rotocold 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 Rotocold Holdings Ltd, Rotocold Ltd filed Critical Rotocold Holdings Ltd
Publication of EP0302676A2 publication Critical patent/EP0302676A2/de
Publication of EP0302676A3 publication Critical patent/EP0302676A3/en
Application granted granted Critical
Publication of EP0302676B1 publication Critical patent/EP0302676B1/de
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
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/04—Composite, e.g. fibre-reinforced

Definitions

  • the invention relates to a rotor compressor of the type having movable vanes located in sockets in the rotor, the rotor being housed in a chamber having an inlet port for refrigerant gas to be drawn into the chamber and an outlet port spaced from the inlet port for discharge of the gas, the vanes defining between the inlet and the outlet at least one suction cell and at least one compression cell.
  • Such compressors are exemplified by the disclosure of US patent 4049410.
  • vanes by injection moulding a composition comprising a polymer, a reinforcing carbon fibre and a lubricant. It has now been discovered that if the content of carbon fibre is kept within defined limits certain benefits result.
  • a rotary compressor comprising a housing including a chamber housing a rotor having rotor vanes, an inlet port and an outlet port being present in the wall of the chamber, the rotor vanes being located in sockets radially spaced about the rotor, the vanes being movable in their sockets and having been injection moulded of a composition comprising a mouldable plastics, carbon fibre and lubricant, characterised in that the composition of which the vanes are moulded comprises from about 22 to about 32 per cent by weight of carbon fibre.
  • the carbon fibres are randomly oriented in the moulding composition.
  • the lubricant is preferably polytetrafluoroethylene and the content thereof ranges from about 5 to about 12 per cent by weight of the composition.
  • the lubricant promotes excessive creep of the blade material on the high pressure reaction surfaces of the blades such as the trailing edge in proximity to the corner of the rotor slot and leads to premature failure.
  • the invention includes rotor vanes per se.
  • the vanes may take any known shape and will usually have a rectangular body and may include grooves on one side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP19880307050 1987-08-03 1988-07-29 Flügel für Rotoren Expired EP0302676B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878718312A GB8718312D0 (en) 1987-08-03 1987-08-03 Rotor blades
GB8718312 1987-08-03

Publications (3)

Publication Number Publication Date
EP0302676A2 true EP0302676A2 (de) 1989-02-08
EP0302676A3 EP0302676A3 (en) 1989-08-30
EP0302676B1 EP0302676B1 (de) 1991-07-17

Family

ID=10621721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880307050 Expired EP0302676B1 (de) 1987-08-03 1988-07-29 Flügel für Rotoren

Country Status (4)

Country Link
EP (1) EP0302676B1 (de)
JP (1) JPH01104993A (de)
DE (1) DE3863714D1 (de)
GB (1) GB8718312D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770464A1 (de) * 1995-10-25 1997-05-02 Zexel Usa Corporation Rotorschaufel aus Verbundwerkstoff und Verfahren zu deren Herstellung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1336128A (en) * 1969-11-10 1973-11-07 Tac Construction Materials Ltd Plastics material reinforced with carbon and other fibres
GB1324443A (en) * 1970-11-23 1973-07-25 British Oxygen Co Ltd Rotary pumps
US4209286A (en) * 1978-09-27 1980-06-24 Schwartz Kenneth P Self lubricating vane for a rotary vane cooling system
SE427491B (sv) * 1979-05-16 1983-04-11 Cerac Inst Sa Lamellmaskin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770464A1 (de) * 1995-10-25 1997-05-02 Zexel Usa Corporation Rotorschaufel aus Verbundwerkstoff und Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
JPH01104993A (ja) 1989-04-21
DE3863714D1 (de) 1991-08-22
GB8718312D0 (en) 1987-09-09
EP0302676A3 (en) 1989-08-30
EP0302676B1 (de) 1991-07-17

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