JPH021485U

JPH021485U -

Info

Publication number: JPH021485U
Application number: JP7734988U
Authority: JP
Priority date: 1988-06-13
Filing date: 1988-06-13
Publication date: 1990-01-08

Description

[Brief explanation of drawings]

第１，２図は従来の非接触ポンプの断面図、第
３図はＰ−Ｖ線図、第４，９，１０図は本案によ
る非接触ポンプの吐出装置を示す図、第５，６，
７，８図は本案における案内羽根を有する案内羽
根支持体の断面図である。１，２はローター、３は基準円筒面、４は羽根
、５は羽根外周部、６は羽根嵌り込み部、７はロ
ーター支持体、８は固定中空体、９は吐出口、１
０は作動室、１１は吸入通路、１２は欠円部、１
３は回転中空体、１４は開閉口、１５は案内羽根
支持体、１６，１６ａ，１６ｂ，１６ｃは連通口
、１７，１７ａ，１７ｂは案内羽根、１８は整流
部、１９は屈曲部、２０は壁部、２１は密接片で
ある。 Figures 1 and 2 are cross-sectional views of a conventional non-contact pump, Figure 3 is a PV diagram, Figures 4, 9, and 10 are diagrams showing the discharge device of the non-contact pump according to the present invention, Figures 5, 6,
Figures 7 and 8 are cross-sectional views of a guide vane support having guide vanes according to the present invention. 1 and 2 are rotors, 3 is a reference cylindrical surface, 4 is a blade, 5 is a blade outer periphery, 6 is a blade fitting part, 7 is a rotor support, 8 is a fixed hollow body, 9 is a discharge port, 1
0 is the working chamber, 11 is the suction passage, 12 is the missing circular part, 1
3 is a rotating hollow body, 14 is an opening/closing port, 15 is a guide vane support, 16, 16a, 16b, 16c are communication ports, 17, 17a, 17b are guide vanes, 18 is a rectifying part, 19 is a bending part, 20 is a The wall portion 21 is a close contact piece.

Claims

[Claims for Utility Model Registration] (1) A rotor that rotates closely around a fixed hollow body and a rotor that has a blade fitting portion into which the blades of the rotor fit are synchronized without contacting each other. Focusing on the working chambers formed by each rotor and casing, which rotate in opposite directions to each other, the working chambers are formed in the fixed hollow body from an intermediate volume state to a minimum volume state. The pump is configured to communicate with the fixed hollow body through a discharge port formed in the fixed hollow body, the guide vane support being provided inside the fixed hollow body, and further formed with a surface oriented in the axial direction of the fixed hollow body. The guide vane is integrally provided on the guide vane support, and includes a guide vane configured by a rectifying part and a bent part formed with a gentle surface that points from the rectifier to the communication port of the guide vane support, and The rectifying portion of the guide vane extends to a position sufficient to almost completely direct all the fluid to be handled by the guide vane in the axial direction of the fixed hollow body, and the peripheral portion of the guide vane is at least supported by the guide vane. In this way, the fluid discharged from the discharge port of the fixed hollow body through the communication port of the guide vane support is directed to the end of the fixed hollow body by the action of the guide vanes. A non-contact pump discharge device that is characterized by being designed to smoothly guide up to the point. (2) A guide vane support is rotatably provided, and by rotating the guide vane support, communication between the working chamber formed by each rotor and the casing and the communication port of the guide vane support is achieved. A discharge device for a non-contact pump according to claim 1, wherein the communication start timing is changed.