Radial piston pump

The invention relates to a radial piston pump in which an eccentric (12) fixed to a drive shaft (11) drives several pistons (3) arranged in a star shape. Since a pump of this type works with so-called suction governing, the delivery spaces are only partially filled above an average speed range. Cons...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ROWE, GERALD, 88131 LINDAU, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a radial piston pump in which an eccentric (12) fixed to a drive shaft (11) drives several pistons (3) arranged in a star shape. Since a pump of this type works with so-called suction governing, the delivery spaces are only partially filled above an average speed range. Consequently, pressure surges which produce noises develop when the piston (3) strikes the oil volume to be expelled. These pressure surges can be reduced if a damping member is fitted between the pistons (3) and the eccentric (12). An annular corrugated spring (16), for example, can be fitted as damping member between an inner and an outer sliding ring (14 and 16 resp.). This corrugated spring (16) allows the piston to deflect slightly at the start of the pressure stroke, so that pressure peaks are reduced.