EP 1055823 A1 20001129 - VANE TYPE VACUUM PUMP FOR AUTOMOBILES
Title (en)
VANE TYPE VACUUM PUMP FOR AUTOMOBILES
Title (de)
FLÜGELZELLEN VAKUUMPUMPE FÜR AUTOMOBILE
Title (fr)
POMPE A VIDE A AILETTES POUR AUTOMOBILES
Publication
Application
Priority
JP 9805642 W 19981214
Abstract (en)
In order to provide a vehicular vane-type vacuum pump in which the weight can be reduced, no abnormal wearing between shafts occurs and in which the manufacturing cost is low, the present invention resides in a vehicular vane-type vacuum pump comprising a cylindrical housing having a suction port and a discharge port, a rotor eccentrically housed within the housing, a shaft for rotationally driving the rotor and a vane rotatable in a sliding contact with an inner circumferential surface of the housing, whereby a fluid is pumped from the suction port to the discharge port and characterized in that the shaft is provided at its outer circumference with a projection or a groove and the shaft and the rotor are integrally secured together. The rotor may be formed by aluminum die-casting, plastic molding or by metal sintering. The projection or the groove on the outer circumference of the shaft may be integrally formed during cold forging of the shaft or manufacturing of the shaft by sintering or by weld-attaching a metal plate-formed product on an outer circumference of the shaft. Also, the housing and the shaft may be made of the same kind of material. <IMAGE>
IPC 1-7
IPC 8 full level
F01C 21/08 (2006.01); F01C 21/10 (2006.01); F04C 18/344 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP KR)
F01C 21/08 (2013.01 - EP); F01C 21/106 (2013.01 - EP); F04C 18/3442 (2013.01 - EP); F04C 25/02 (2013.01 - KR); F04C 29/0078 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1055823 A1 20001129; EP 1055823 A4 20040512; EP 1055823 B1 20080220; DE 69839159 D1 20080403; DE 69839159 T2 20090226; KR 100385683 B1 20030527; KR 20010040678 A 20010515; TW 414837 B 20001211; WO 0036303 A1 20000622
DOCDB simple family (application)
EP 98959196 A 19981214; DE 69839159 T 19981214; JP 9805642 W 19981214; KR 20007008554 A 20000804; TW 87120879 A 19981215