Scroll compressor with a discharge valve

(19)

(11)

EP 1 081 384 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	06.02.2002 Bulletin 2002/06

(43)	Date of publication A2:
	07.03.2001 Bulletin 2001/10

(21)	Application number: 00119198.0

(22)	Date of filing: 05.09.2000

(51)	International Patent Classification (IPC)⁷: F04C 18/02, F04C 29/08

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

06.09.1999 JP 25154099

(71)	Applicant: Kabushiki Kaisha Toyota Jidoshokki
	Kariya-shi, Aichi-ken (JP)

(72)	Inventors:
	Fujii, Toshiro Kariya-shi, Aichi-ken (JP) Watanabe, Yasushi Kariya-shi, Aichi-ken (JP) Kuroki, Kazuhiro Kariya-shi, Aichi-ken (JP) Gennami, Hiroyuki Kariya-shi, Aichi-ken (JP)

(74)	Representative: Pellmann, Hans-Bernd, Dipl.-Ing. et al
	Patentanwaltsbüro Tiedtke-Bühling-Kinne Bavariaring 4 80336 München 80336 München (DE)

(54)	Scroll compressor with a discharge valve

(57) A scroll-type compressor is disclosed. The compressor has a fixed scroll (11) and a movable scroll (20). Two scrolls (11, 20) respectively have volute portions (32,34) cooperate to form a variable volume gas pocket. The movable scroll (20) moves along a predetermined orbital path to vary the volume of the pocket. A movable base plate (33) has a discharge port (25) that discharges the gas from the pocket when the volume of the pocket is less than a predetermined volume. A valve unit (26, 29, 30) connects and disconnects the discharge port (25) with the gas passage. The valve has a movable valve body (39) movable between two positions open and close the discharge port (25).

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