JPH01127985U - - Google Patents

Description

[Brief explanation of the drawing]

1, 2 and 3 are sectional views of a conventional non-contact pump, 4, 6 and 7 are sectional views of a non-contact pump according to the present invention, and 5 is a PV diagram. 1 is a male rotor, 2 is a blade, 3 is a blade support,
4 is the outer circumference of the blade, 5 is a fixed hollow body, 6 is a discharge port,
7 is a rotating hollow body, 8 is an opening/closing opening, 9 is a missing circular part, 10
is a female rotor, 11 is a female rotor outer periphery, 12 is a recessed part, 13 is an operating chamber, 14 is a suction passage, 15 is a confined space, C ₁ , C ₂ , C ₃ , C ₄ , C ₅ ,
C ₆ , C ₇ , C ₈ , C ₉ , C' ₁ and C' ₄ are lines.

Claims (1)

[Claims for Utility Model Registration] (1) A male rotor having blades that closely surround a fixed hollow body fixed to the outside of the rotating hollow body and rotate integrally with the rotating hollow body, and an inner periphery of the rotor casing. A female rotor outer periphery that is in close contact with the surface and a female rotor that is recessed from the outer periphery of the female rotor and has a recess into which the blades of the male rotor fit are synchronously rotated in opposite directions without contacting each other, In the pump in which the outer circumferential portion of the female rotor is brought into close contact with the fixed hollow body, pay attention to the recessed portion of the female rotor into which the same blades as the male rotor blades are fitted, and is created by the end of the wall on the advancing side of the depression, and immediately after the outlet formed in the fixed hollow body covered by the vane is reopened, The state in which the tip of the side surface of the blade on the advancing side of the blade and the tip of the wall surface of the advancing side of the recessed portion are the closest to each other, and in the process of moving away from each other and reaching the state where they are closest again, they are the most distant. The configuration is such that the blade has already passed a point in time, and the communication between the working chamber on the lagging side of the blade and the suction side is cut off, and at least the cross section of the side surface of the blade on the lagging side of the blade is The line on the root side and the line on at least the end side of the cross section of the wall surface on the lagging side of the recessed part are made to create each other, and are further sandwiched between the blades of the male rotor and the female rotor. Focusing on the working chamber, after the fluid in the working chamber is hermetically compressed by reducing the volume of the working chamber, there is a discharge port formed in the fixed hollow body and an opening/closing port formed in the rotating hollow body. A non-contact pump characterized in that the pump is discharged into the rotating hollow body through. (2) The non-contact pump according to claim 1, wherein the male rotor has one blade.