ROTARY FLUID MACHINE - Patent 1428978

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(11)

EP 1 428 978 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 158(3) EPC

(48)	Corrigendum issued on:
	10.11.2004 Bulletin 2004/46

(43)	Date of publication:
	16.06.2004 Bulletin 2004/25

(21)	Application number: 02772880.7

(22)	Date of filing: 20.09.2002

(51)	International Patent Classification (IPC)⁷: F01C 1/344, F01B 13/06, F04C 18/344, F04B 27/06

(86)	International application number:
	PCT/JP2002/009720

(87)	International publication number:
	WO 2003/027440 (03.04.2003 Gazette 2003/14)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

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Priority:

21.09.2001 JP 2001289388

(71)	Applicant: Honda Giken Kogyo Kabushiki Kaisha
	Minato-ku, Tokyo 107-8556 (JP)

(72)	Inventors:
	TAKAHASHI, Tsutomu, c/o KK Honda Gijutsu Kenkyusho Wako-shi, Saitama 351-0193 (JP) ENDOH, Tsuneo, c/o KK Honda Gijutsu Kenkyusho Wako-shi, Saitama 351-0193 (JP) ICHIKAWA, Hiroshi, c/o KK Honda Gijutsu Kenkyusho Wako-shi, Saitama 351-0193 (JP) KIMURA, Yasunari, c/o KK Honda Gijutsu Kenkyusho Wako-shi, Saitama 351-0193 (JP)

(74)	Representative: Prechtel, Jörg, Dipl.-Phys. Dr. et al
	Weickmann & Weickmann Patentanwälte Postfach 86 08 20 81635 München 81635 München (DE)

(54)	ROTARY FLUID MACHINE

(57) A rotary fluid machine is provided that includes a rotor chamber (14) formed in a casing, a rotor (41) rotatably housed within the rotor chamber (14), a plurality of vane channels (49) formed radially in the rotor (41), a plurality of vanes (48) slidably supported in the respective vane channels (49), vane chambers (75) defined between adjacent vanes (48), and an intake port (90) and an exhaust port (91) for supplying and discharging a gas-phase working medium to and from the vane chambers (75). A labyrinth (43g) provided on the outer peripheral face of the rotor (41) prevents the gas-phase working medium from leaking in a region in which there is a large difference in pressure between adjacent vane chambers (75) that are in between the trailing edge of the exhaust port (91) and the leading edge of the intake port (90).