JPS61159687U

JPS61159687U -

Info

Publication number: JPS61159687U
Application number: JP4249085U
Authority: JP
Priority date: 1985-03-25
Filing date: 1985-03-25
Publication date: 1986-10-03

Description

[Brief explanation of the drawing]

第１，２図は従来の非接触型ポンプの図、第３
図は雌ローターの図、第４図はＰ―Ｖ線図、第５
，７，８図は本案による非接触型ポンプの図、第
６図は第５図の基礎となる非接触型ポンプの図。１は雄ローター、２は羽根、３は雌ローター、
４は外周部、５はポンプ室、６は陥没部、７はロ
ーターケーシング、８は吸入通路、９，１０は吐
出通路、１１は連通路、２′は羽根外周部、ｌ_１，ｌ_１′，ｌ_２，ｃ_１，ｃ_２は線、ｔ_１，ｔ_２は
脱角部である。 Figures 1 and 2 are diagrams of conventional non-contact pumps, Figure 3
The figure is a diagram of the female rotor, Figure 4 is a PV diagram, and Figure 5 is a diagram of the female rotor.
, 7 and 8 are diagrams of the non-contact pump according to the present invention, and FIG. 6 is a diagram of the non-contact pump that is the basis of FIG. 5. 1 is a male rotor, 2 is a blade, 3 is a female rotor,
4 is the outer circumferential part, 5 is the pump chamber, 6 is the depressed part, 7 is the rotor casing, 8 is the suction passage, 9 and 10 are the discharge passages, 11 is the communication passage, 2' is the blade outer periphery, l ₁ , l ₁ ', l ₂ , c ₁ , c ₂ are lines, and t ₁ and t ₂ are decornered parts.

Claims

[Claims for Utility Model Registration] (1) A female rotor having an outer circumferential portion that is in close contact with the inner circumferential surface of the rotor casing and a depressed portion that is depressed from the outer circumferential portion, and a female rotor that forms the depressed portion of the front female rotor. The pump is a pump in which a male rotor is provided with blades having a blade side surface created by a portion of the blade, and the male rotor rotates in opposite directions synchronously in a non-contact state. After the fluid in the pump chamber having the blade side on the leading side of the blade is compressed by the reduction in the volume of the pump chamber, the pump chamber having the blade side on the leading side of the blade enters the recessed part of the female rotor. configured to communicate and be discharged through this depression,
And when the lagging end of the outer periphery of the blade, which is in close contact with the inner periphery of the rotor sing, coincides with the intersection of the inner periphery of the rotor casings on the male rotor side and the female rotor side, the blade advances. A non-contact type pump characterized in that the line of the cross section of the side surface of the side blade and the line of the cross section of the advance side part of the recessed part of the female rotor into which the blade is fitted are generally brought close to each other. . (2) Paying attention to the cross sections of the male and female rotors, when the lagging edge of the outer periphery of the blades of the male rotor coincides with the intersection of the inner periphery of the rotor casings of the male rotor side and the female rotor side, Utility model registration claim No. 1 in which the leading edge of the outer circumferential portion of the blade is located near the center connection line of the male and female rotors.
Non-contact pump as described in section. (3) Paying attention to the cross sections of the male and female rotors, draw at least the line on the leading side of the male rotor's blades, and the line on the lagging side of the same blade, respectively, on the leading side of the depressed part of the female rotor. The non-contact type pump according to claim 1 or 2, which is created by a part of the line and a part of the line on the delayed side of the recessed part. (4) Paying attention to the cross sections of the male and female rotors, draw at least the line on the forward side of the blades of the male rotor, at least the line at the base of the blade, and the line on the lagging side of the recessed part of the female rotor where the blades are fitted, respectively. The non-contact type pump according to claim 1 or 2, which is created by a part of the line on the advancing side of the depression, and a lagging end of the outer circumference of the blade. (5) Focusing on one blade of the male rotor, by reducing the volume of the pump chamber with the side surface of the blade on the advancing side, the fluid in the pump chamber is directed to the depressed part of the female rotor through the communication path. A non-contact type pump according to any one of claims 1 to 4 of the utility model registration claims, which is adapted to allow inflow. (6) The non-contact type pump according to claim 5 of the utility model registration, wherein the communication passage is formed in the rotor casing.