Rotary piston pump

Abstract

The invention relates to a rotary piston pump, which comprises a cylinder block, a front and a rear end cover secured to the front and the rear end surface of the cylinder block respectively; a cam rotor being fitted in the chamber of the cylinder block, a portion of the rotor, having the maximum turning radius, coming into contact with the inner surface of cylinder block slidely so as to form an axially extended seal; a shaft having a rotor provided thereon and rotatable therewith; a parting means for separating the axially extended sealed chamber, which is formed between the outer surface of rotor and inner wall of cylinder block, into an induction chamber and an exhaustion chamber; an inlet and an outlet respectively provided at the two sides of the said parting means and communicated with the induction chamber and the exhaustion chamber, wherein the parting means comprises: (1) an axially extended circular arc-shaped recess formed in the inner wall of the cylinder block with its axis parallel to that of the cylinder block; (2) a cylindrical part co-axially provided in the said recess formed in the inner wall of the cylinder block with its axis parallel to that of the cylinder block; (2) a cylindrical part co-axially provided in the said precess, with a circular gap formed between its outer surface and the said recess while the parting means is assembled; (3) a separating member provided in said gap and capable of sliding therein for separating the said sealed chamber into the induction chamber and the exhaustion chamber; (4) a biaising means for pressing said separating member against the cam rotor.

Description

technical field [0001] The invention relates to an energy conversion device for converting mechanical energy into pressure energy, in particular to a rotor pump. Background technique [0002] Although the existing rotor pumps have advantages that cannot be compared with other pumps, there are always disadvantages such as complicated processing technology and unreliable sealing, especially in high pressure state, the sealing effect is greatly reduced. The main reason for the above shortcomings is that the reliability of the movable partition block separating the high-pressure chamber and the low-pressure chamber is poor, and in order to improve the sealing efficiency, higher requirements have to be put forward in the processing technology. Contents of the invention [0003] The object of the present invention is to provide a rotor pump which can achieve a reliable seal between the high-pressure chamber and the low-pressure chamber. [0004] In order to achieve the above ob...

AI Technical Summary

Problems solved by technology

[0002] Although the existing rotor pump has advantages that cannot be compared with other pumps, there are always disadvantages such as complicated processing technology and unreliable sealing, especially under high pressure, the sealing effect is greatly reduced

The main reason for the above shortcomings is that the reliability of the movable partition stopper that separates the high-pressure chamber and the low-pressure chamber is poor, and in order to improve the sealing efficiency, higher requirements have to be put forward in the processing technology

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