VARIABLE DISPLACEMENT VANE PUMP

A variable displacement vane pump includes a pump body, a rotor, an annular cam ring, a rear body closing the pump body, a low pressure supply passage constantly connecting the inlet passage and the other of the first fluid pressure chamber and the second fluid pressure chamber, a low pressure intro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMURO SHIGEAKI, SEMBA FUSAO
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:	A variable displacement vane pump includes a pump body, a rotor, an annular cam ring, a rear body closing the pump body, a low pressure supply passage constantly connecting the inlet passage and the other of the first fluid pressure chamber and the second fluid pressure chamber, a low pressure introduction port formed in the other of the pressure plate and the rear body, and opened in the other of the first fluid pressure chamber and the second fluid pressure chamber, and a low pressure introduction passage formed in the other of the pressure plate and the rear body, the low pressure introduction passage connecting the low pressure introduction port and the inlet side vane back pressure grooves.