Swash plate compressor valve

(19)

(11)

EP 1 314 889 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.06.2005 Bulletin 2005/23

(43)	Date of publication A2:
	28.05.2003 Bulletin 2003/22

(21)	Application number: 02026009.7

(22)	Date of filing: 21.11.2002

(51)	International Patent Classification (IPC)⁷: F04B 27/10

(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
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

22.11.2001 JP 2001357630

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

(72)	Inventors:
	Tarutani, Tomoji Kariya-shi, Aichi-ken (JP) Shintoku, Noriyuki Kariya-shi, Aichi-ken (JP) Mochizuki, Kenji Kariya-shi, Aichi-ken (JP) Inoue, Yoshinori Kariya-shi, Aichi-ken (JP)

(74)	Representative: Vollnhals, Aurel, Dipl.-Ing.
	Patentanwälte Tiedtke-Bühling-Kinne & Partner Bavariaring 4 80336 München 80336 München (DE)

(54)	Swash plate compressor valve

(57) A shaft (16) and a rotary valve (37), which are formed integrally, are made of an iron-based metal while a cylinder block (12) is made of an aluminum-based metal. A sleeve (43) forms a slide surface between the cylinder block (12) and the rotary valve (37) when the shaft (16) and the rotary valve (37) rotate together. The sleeve (43) has a coefficient of thermal expansion closer to those of the shaft (16) and the rotary valve (37) than that of the cylinder block (12). This structure prevents an increase in the clearance between the housing and the rotary valve, due to the increased temperature at the time the shaft rotates at a high speed, and prevents gas leakage and a reduction in sealability.

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