(19)
(11)EP 2 719 860 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.12.2015 Bulletin 2015/53

(43)Date of publication A2:
16.04.2014 Bulletin 2014/16

(21)Application number: 13159820.3

(22)Date of filing:  18.03.2013
(51)International Patent Classification (IPC): 
F01C 1/12(2006.01)
F01C 1/08(2006.01)
F01C 21/08(2006.01)
F16H 55/08(2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30)Priority: 15.10.2012 TW 101137981

(71)Applicant: Liung Feng Industrial Co Ltd
New Taipei City (TW)

(72)Inventors:
  • Tsang-lin Hsu
    Tu-Cheng Dist., New Taipei City (TW)
  • Tien-tung Chung
    Tu-Cheng Dist., New Taipei City (TW)

(74)Representative: Adamson Jones 
BioCity Nottingham Pennyfoot Street
Nottingham NG1 1GF
Nottingham NG1 1GF (GB)

  


(54)Machine with a pair of claw-type rotors having same profiles


(57) Machine with a pair of claw-type rotors having same profiles, the machine including a defined rotor and a conjugate rotor intermeshing with and conjugating to each other. The defined rotor includes a first claw having a cross-section profile having an epicycloid, a first arc, a second arc, a third arc, and a fourth arc all connected together in sequence in a counterclockwise direction. The first, second, third, and fourth arcs are connected with slope continuity, whereby locations of centers, values of radiuses and arc angles of the second and third arcs are capable of being defined in accordance with the slope continuity and geometric relations between the first and fourth arcs. The conjugate rotor has a first claw having a cross-section profile generated by utilizing a conjugate curve corresponding to the first claw of the defined rotor.







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Search report