(19)
(11) EP 0 252 715 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.02.1989 Bulletin 1989/08

(43) Date of publication A2:
13.01.1988 Bulletin 1988/02

(21) Application number: 87305988.5

(22) Date of filing: 07.07.1987
(51) International Patent Classification (IPC)4: F01B 13/06, F16B 33/02
(84) Designated Contracting States:
DE FR IT

(30) Priority: 07.07.1986 JP 104403/86

(71) Applicant: SHIMADZU CORPORATION
Nakagyo-ku Kyoto-shi Kyoto 604 (JP)

(72) Inventor:
  • Kita, Yasuo
    Kyoto 607 (JP)

(74) Representative: Smith, Philip Antony et al
REDDIE & GROSE 16 Theobalds Road
London WC1X 8PL
London WC1X 8PL (GB)


(56) References cited: : 
   
       


    (54) Radial piston fluid pressure pump or motor


    (57) In a fluid pump or motor, particularly one of the radial piston type, a main casing 21 is screwed to an end cover 22 by a mating helical screw formation using a taper plane 23 which is at an angle α of less than 45° to the axis m. An external thread in the boss 26 of the cover 22 is screwed into the internal thread of the part 21a until surfaces 21b and 25 are engaged to determine the axial position.







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