AXIAL-PLUNGER PUMP Russian patent published in 1995 - IPC

FIELD: pump engineering. SUBSTANCE: bank of cylinders is mounted inside a housing with the cover. Plungers with trust bearings are arranged in the cylinders with inclination to the axis of the bank. The spherical face surface of the thrust bearing bears on answered surface of the inclined washer. The washer can rotate. A spherical bearing, which interacts with a separator, is set on the driving shaft. Journals of the bearing ring is positioned in hollows made in the cover. The inclined washer is mounted on the ring. The axis of rotation of the journals is coincident with the axis of the spherical bearing. Two bearing shoe are interposed between the journals and hollows of the cover on both sides of the axis of the driving shaft. Each shoe is provided with a groove made from the side of the journal. A plate, which is rigidly connected with the shoe and made of antifriction material, is received in the groove. EFFECT: enhanced efficiency. 2 dwg