(19)
(11) EP 1 988 293 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.11.2015 Bulletin 2015/45

(43) Date of publication A2:
05.11.2008 Bulletin 2008/45

(21) Application number: 08103647.7

(22) Date of filing: 22.04.2008
(51) International Patent Classification (IPC): 
F01P 5/10(2006.01)
F04D 29/10(2006.01)
 F04D 29/049(2006.01)
F04D 29/12(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(30) Priority: 01.05.2007 US 915300 P
23.07.2007 US 781366

(71) Applicant: Pierburg GmbH
41460 Neuss (DE)

(72) Inventor:
  • Maffeis, Jerome
    56043, Fauglia (IT)

(74) Representative: Patentanwälte ter Smitten Eberlein Rütten Partnerschaftsgesellschaft 
Burgunderstraße 29
40549 Düsseldorf
40549 Düsseldorf (DE)

   


(54) Coolant pump


(57) A coolant pump (90) includes a housing (95) having an internal axis; a bearing (100) disposed on an outside surface of the housing (95); a shaft (120) disposed along the internal axis of the housing (95), wherein the shaft (120) is journaled by the bearing (100) so as to be rotatable; an impeller (130) disposed on the shaft (120) so as to rotate with the shaft (120); and a seal (140) disposed on the shaft (120) at least partially inside of the bearing (100) so that the bearing (100) overlaps the seal (140) along the internal axis of the housing (95), wherein the bearing (100) has an inner diameter, the seal (140) has an outer diameter, and the inner diameter of the bearing (100) is greater than the outer diameter of the seal.







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Search report