FIELD: pumps.
SUBSTANCE: invention relates to a reversible gear pump. The pump is comprised of engaged driving gear 1 and driven gear 2 installed in the body 3 wherein the first and the second channels connected with the engagement zone of the wheels 1, 2 from the opposite sides thereof are made, the third and fourth channels 6 and 7 for supply and discharge of liquid, respectively. The shaft of the wheel 1 is equipped with a barrel 8 with two blades 9 perpendicular to the axis thereof located in one plane opposite each other. An annular recess is made in the body 3 with a first, a second, a third and a fourth holes circumferentially arranged consequently and evenly. An annular distribution element 15 with two diametrically located bulgings in form of sectors of the recess is located in the recess. The first and the second channels are connected with the first and the third holes, respectively. The channels 6 and 7 are connected with the second and the fourth holes, respectively. Permanent magnets 17 are fixed on the planes of the blades 9 facing the recess configured to interact with the element 15. The element 15 is made with a rotation angle limiter.
EFFECT: invention is designed to simplify the structure of the pump, increase reliability, durability and maintainability.
1 cl, 8 dwg
