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1. (WO2003054393) FEED PUMP

Pub. No.:    WO/2003/054393    International Application No.:    PCT/DE2002/003214
Publication Date: Jul 3, 2003 International Filing Date: Aug 31, 2002
IPC: F04C 2/18
F04C 13/00
F04C 15/00
Applicants: KREYENBORG VERWALTUNGEN UND BETEILIGUNGEN GMBH & CO. KG
GILLERT, Georg
HENNINGSEN, Dirk
Inventors: GILLERT, Georg
HENNINGSEN, Dirk
Title: FEED PUMP
Abstract:
The invention relates to a feed pump for delivering fluid media, wherein the pump bearings are lubricated by the feed medium itself. Connecting channels with valve devices are provided on the suction side and on the pressure side upstream and downstream, respectively, of a displacement element and link the bearing area of the pump with the production channel. Said connecting channels are configured as straight bores in the pump housing. The valve devices are configured as tappets that are disposed in the associated connecting channel sections so as to be displaced while being tight with respect to suction.