Internal gear pump

The utility model discloses an internal gear pump with stable pressure, which comprises a pump body, as well as an oil inlet and an oil outlet both formed in the pump body, wherein an internally toothed annulus is arranged inside the pump body in a rotating manner; a low pressure cavity is communica...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI GUANGMING, ZHENG JIAN'AN, FAN NENGSHENG, WEI ZHIFEI, ZHOU YEGANG, SUN BUQUN
Format:	Patent
Sprache:	chi ; 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:	The utility model discloses an internal gear pump with stable pressure, which comprises a pump body, as well as an oil inlet and an oil outlet both formed in the pump body, wherein an internally toothed annulus is arranged inside the pump body in a rotating manner; a low pressure cavity is communicated with the oil outlet through oil feeding openings in the internally toothed annulus; a pressure adjusting slot is formed in the inner wall, at the oil outlet, of the pump body; an included angle a between one end of the pressure adjusting slot and the center of the internally toothed annulus is 8-15 degrees; the included angle b between the other end of the pressure adjusting slot and the center of the internally toothed annulus is 75-87 degrees.