Double acting variable vane pump

Abstract

The invention discloses a double-acting variable vane pump. The double-acting variable vane pump comprises a housing, rotors and vanes, the rotors are located in the center and covered with the housing, a lap of ring K1 extends from the middle center position of the inner side wall of the shell housing extends to a lap of ring K1 in to the direction of the spherical center, three or more left locating grooves and right locating grooves are evenly formed in the inner sidewall of the housing in the circumferential direction, and the left locating grooves and the right locating grooves are both provided with the vanes; a circular groove is formed in the middle center position of the side wall of the each rotors, left sliding grooves are formed in the left side surfaces of the circular grooves, right sliding grooves are formed in the right side surfaces of the circular grooves, the vanes on the left locating grooves are further arranged on the left sliding grooves in a sliding mode, and the vanes on the right locating grooves are further arranged on the right sliding grooves in a sliding mode; the ring K1 is clamped between the vanes of the left locating grooves and the vanes of the right locating grooves, a chamber is formed among every two adjacent vanes, the surfaces of the circular grooves, the inner wall of the housing and the side wall of the ring K1 form a chamber, and the axis of the rotors and the axis of the housing do not coincide are in misalignment position. The relative linear velocity between the vanes and the housing is zero, and the double-acting variable vanepump is capable of working in at an extremely high velocity.

Description

technical field [0001] The invention relates to a multi-vane pump, in particular to a double-acting variable vane pump. Background technique [0002] The existing vane pump structure is that the rotor is placed eccentrically in the oil cylinder, and the blades are placed in the rotor radially or at a certain angle with the rotor radius. When the rotor rotates at a high speed during operation, the blades are thrown out under the action of centrifugal force and formed with the oil cylinder. Sealed cavity, the volume change generates pressure when rotating. . This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output pressure is low, and the relative linear velocity between the vane and the cylinder body is very high during rotation, resulting in great friction. As a result, the overall wear of the vane pump is fast, the life is short, and the efficiency is low. In this way, the speed of the pump ...

AI Technical Summary

Problems solved by technology

This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output pressure is low, and the relative linear velocity between the vane and the cylinder body is very high during rotation, resulting in great friction. As a result, the overall wear of the vane pump is fast, the life is short, and the efficiency is low

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