Rotary fluid conveying device

Abstract

The invention relates to a rotary fluid conveying device. The rotary fluid conveying device comprises a first seat body, a second seat body, a rotor and a driving shaft; an annular accommodating chamber is formed in the first seat body; the rotor is provided with an arc-shaped piston; the piston is arranged in the accommodating chamber, and the piston and the accommodating chamber are eccentric; the driving shaft drives the piston to rotate and translate in the accommodating chamber; the first seat body is pivoted with a round seat capable of rotating back and forth in a small angle range; two clamping arms convexly extend from the round seat to enter the accommodating chamber, and a blade is pivoted and embedded between the clamping arms; the blade is provided with two abutting surfaces; the piston is provided with two end faces, and each end face abuts against the corresponding abutting face. Therefore, when the piston rotates and translates, each end face slides in a reciprocating mode relative to each abutting face, and the blades move in a reciprocating mode, so that the operation smoothness is improved, and the operation capacity is improved.

Description

technical field [0001] The present invention relates to a rotary fluid transmission device, more specifically, to a rotary fluid transmission device which can improve smooth operation. Background technique [0002] The US7563080B2 patent document discloses a rotary compressor, which includes a cylinder, a piston, and a pair of bushes, wherein the piston is annularly opened with a groove and is C-shaped, and each of the bushes is symmetrically arranged in the groove. And each of the bushes clamps a vane integrally formed with the cylinder from both sides to support the vane. [0003] The US7563080B2 patent announcement describes that "through the above structure, the rotation of the drive shaft makes the outer cylinder and the inner cylinder swing with the center between the swing bushes of the blades, so that the blades move forward and backward in the blade grooves. The The oscillating action causes the point of contact between the piston and cylinder to move in the follow...

AI Technical Summary

Problems solved by technology

[0006] However, when the piston rotates, the piston on both sides of the groove also forms a rotary motion with the action of the piston, and each bush is subjected to the force from the oil on the oil storage part on the side of the groove. influence, so that when each of the bushes is actuated, each of the bushes remains against the vane, and forms a linear reciprocating motion along the axial direction of the vane, so that the piston is on both sides of the groove and each Between the bushes, it is easy to catch each other, and if the eccentricity between the axis of the drive shaft that drives the piston and the center of the piston is large, the piston will easily collide with the bushing, making US9284958B2 only Can be applied to small capacity compressors

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