Twin pump of the internally- meshing gear type

Internal combustion engines having two independent supply circuits, for example a pressure lubrication and a pressure-oil heating or cooling circuit, require two lubricating-oil pumps; this increases considerably the space needed for their installation and complicates the drive arrangement and duct...

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Bibliographische Detailangaben
Hauptverfasser:	WERNER LEMME, HELMUT MULLER, WINFRIED KALUZA, ERNST-SIEGRIED HARTMANN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	Internal combustion engines having two independent supply circuits, for example a pressure lubrication and a pressure-oil heating or cooling circuit, require two lubricating-oil pumps; this increases considerably the space needed for their installation and complicates the drive arrangement and duct lay-out, thus leading to higher costs. The pump therefore houses two internally-meshing gear pumps 2a, 21a and 2b, 21b in a single pump casing 1, the two pumps having a common suction port 9 but separate feed or delivery ports 10a, (10b) with both pumps arranged to be driven via a single drive shaft 7.