| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed pump comprises drive shaft 3 with at least one pair of gears 2 and 5 eccentrically fitted thereon, plates 7 arranged on end faces of said gears, shaft axial locking elements and drive spring 11 of shaft 3. The latter seats in bearing holes made in plates 7 while shaft locking elements is made up of lock ring 9 fitted in annular groove 9 made on the shaft outer surface between inner gear 2 and one of disks 7 fitted in annular groove 10 made on face of inner gear 2 engaged with said plate. Depth of groove 10 is larger than thickness of lock ring 9. The latter can be, for example a split ring. ^ EFFECT: reduced number friction pairs, amplitude of shaft displacements, wear in shaft axial locking elements and higher reliability. ^ 3 cl, 4 dwg |
