JPH0430201U

JPH0430201U -

Info

Publication number: JPH0430201U
Application number: JP7158090U
Authority: JP
Priority date: 1990-07-06
Filing date: 1990-07-06
Publication date: 1992-03-11

Description

[Brief explanation of drawings]

第１，２，３，４図は本案に係わる非接触回転
機械の図、第５，９図は本案による非接触回転機
械の漏洩防止構造を示す図、第６，７，８図は本
案における羽根の図、第１０，１１図は本案にお
けるローターの図、第１２図は押え金の図である
。１，１′は羽根、２，２′は羽根外周面、３，
３′は羽根内周面、４，４′は羽根側板、５，５
′は固定中空体、６，６′は連絡口、７，７′は
回転中空体、８，８′は開閉口、９，９′は作動
室、１０は通路、１１，１１′は欠円部、１２は
陥没部、１３は圧抜き通路、１４，１６は連通路
、１５は空間、１７は放出口、１８は非金属板、
１９は段部、２０は押え金、２１は孔、Ｃ_１，Ｃ
_２，Ｃ_３，Ｃ_４，Ｃ_５は線である。 Figures 1, 2, 3, and 4 are diagrams of the non-contact rotating machine according to the present proposal, Figures 5 and 9 are diagrams showing the leakage prevention structure of the non-contact rotating machine according to the present proposal, and Figures 6, 7, and 8 are diagrams of the non-contact rotating machine according to the present proposal. Figures 10 and 11 are views of the rotor, and Figure 12 is a view of the presser foot. 1, 1' are blades, 2, 2' are blade outer peripheral surfaces, 3,
3' is the inner peripheral surface of the blade, 4, 4' are the blade side plates, 5, 5
' is a fixed hollow body, 6, 6' are communication ports, 7, 7' are rotating hollow bodies, 8, 8' are opening/closing ports, 9, 9' are working chambers, 10 is a passage, 11, 11' are missing circles 12 is a depressed portion, 13 is a pressure relief passage, 14 and 16 are communication passages, 15 is a space, 17 is a discharge port, 18 is a non-metallic plate,
19 is a step, 20 is a presser foot, 21 is a hole, C ₁ , C
₂ , _C3 , _C4 , and _C5 are lines.

Claims

[Claims for Utility Model Registration] (1) A fixed hollow body in which at least one of a pair of rotors that synchronously rotates in opposite directions without contacting each other is fixed to the outside of the rotating hollow body. a blade that rotates integrally with the rotary hollow body while having a blade inner peripheral surface that is in close contact with the outer peripheral surface of the casing; is configured to communicate into the rotating hollow body through a communication port formed in the fixed hollow body and an opening/closing port formed in the rotating hollow body during a period in which the hollow body communicates between the minimum volume state and the intermediate volume state. In a non-contact rotating machine, such a non-metallic plate, which does not seize with metallic materials and can be easily worn out due to friction, is protruded by a small length in the radial direction from the cylindrical surface formed on the blade during steady operation. A leak-preventing structure for a non-contact rotating machine, characterized in that the blade is closely attached and fixed to the side surface of the low-pressure side blade of the blade. (2) A non-metallic plate is closely attached and fixed to the low-pressure side of the blade so that it protrudes by a very small length in the radial direction from the inner circumferential surface of the blade and the outer circumferential surface of the blade during steady operation, and The non-contact device according to claim 1 of the patented utility model, which is configured such that the non-metallic plate has a portion in the middle where the non-metallic plate is not tightly attached or fixed, so as not to impede the cooling action of the blade by the fluid on the low pressure side. Leakage prevention structure for rotating machinery. (3) The non-contact rotating machine according to claim 1 or 2 of the utility model registration claim, wherein the end face of the non-metallic plate is on the same cylindrical surface as the cylindrical surface formed on the blade at room temperature. Leak-proof structure.