Improvement in assembling a centrifugal pump

A centrifugal pump of the type comprising a housing, a shaft rotatably mounted in said housing via a bearing, a wheel having a hub fixed to the shaft, a seal assembly comprising on the one hand a counter-ring and on the other a seal including a friction ring secured to a flexible member and resilien...

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Bibliographische Detailangaben
1. Verfasser:	MINCUZZI, ANTONIO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED OPERATIONS CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT PUMPS OTHER WORKING OF METAL PERFORMING OPERATIONS PISTONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SEALINGS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	A centrifugal pump of the type comprising a housing, a shaft rotatably mounted in said housing via a bearing, a wheel having a hub fixed to the shaft, a seal assembly comprising on the one hand a counter-ring and on the other a seal including a friction ring secured to a flexible member and resiliently urged against said counter-ring, the counter-ring and the flexible member being secured to respective connection members, of which the first one is drive-fitted in a recess in the housing and abuts against a shoulder of said recess and the second one is fixed to the wheel hub, wherein the wheel has a plurality of angularly distributed openings and said first connection member of the side remote from said shoulder has a radial thrust surface facing said openings, and a retainer, whose axial position relative to the shaft is fixed, is provided to keep the seal assembly assembled prior to its mounting in the housing.