Piston-type compressor inlet valve

(19)

(11)

EP 0 962 655 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	23.02.2000 Bulletin 2000/08

(43)	Date of publication A2:
	08.12.1999 Bulletin 1999/49

(21)	Application number: 99110530.5

(22)	Date of filing: 01.06.1999

(51)	International Patent Classification (IPC)⁷: F04B 39/10

(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

(30)

Priority:

05.06.1998 JP 15783798
19.05.1999 JP 13858099

(71)	Applicant: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
	Aichi-ken 448-8671 (JP)

(72)	Inventors:
	Kayukawa,Hiroaki, c/o K.K. Toyoda Jidoshokki Aichi-ken 448-8671 (JP) Hidaka, Shigeyuki, c/o K.K. Toyoda Jidoshokki Aichi-ken 448-8671 (JP) Kawata, Takeshi, c/o K.K. Toyoda Jidoshokki Aichi-ken 448-8671 (JP) Koumura, Satoshi, c/o K.K. Toyoda Jidoshokki Aichi-ken 448-8671 (JP)

(74)	Representative: Hoeger, Stellrecht & Partner
	Uhlandstrasse 14 c 70182 Stuttgart 70182 Stuttgart (DE)

(54)	Piston-type compressor inlet valve

(57) The present invention relates to a piston-type compressor comprising a casing having a plurality of bores, a plurality of pistons respectively inserted into each bore, a driving means for sequentially moving said pistons to suck and to discharge a gas into and from the bores, an sucking valve mechanism including a valve seat plate and an sucking valves, and a discharging valve mechanism.
In such compressor, whole of an abutted area on the valve seat plate or the whole of the abutting area on each sucking valve to be abutted to the valve seat plate is roughed. Thus, separation of the sucking valve from the valve seat plate in sucking the gas into the bores is facilitated.

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