Topic
Bell mouth
About: Bell mouth is a research topic. Over the lifetime, 603 publications have been published within this topic receiving 1624 citations.
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Patent•
28 Jun 2018
TL;DR: In this article, a turbo fan and a bell mouth are used for the centrifugal blower, with a plurality of wall parts, each comprising two or more wall parts extending in parallel with each other in an outward direction from the cylindrical section.
Abstract: The centrifugal blower is provided with a turbo fan and a bell mouth. The bell mouth includes a flange section extending in an orthogonal direction to a rotational axis direction of the turbo fan and a cylindrical section extending from the flange section in the rotational axis direction, and the bell mouth further has a plurality of wall parts each formed so as to be connected to the flange part and the outer peripheral surface of the cylindrical part and stand upright. The plurality of wall parts includes a plurality of wall part groups, each comprising two or more wall parts extending in parallel with each other in an outward direction from the cylindrical section.
Patent•
17 Aug 2016
TL;DR: In this article, a cylindrical roller is mounted and fixed on an extension shaft replaced for the left end shaft of an upper compression roller, and a curved groove is formed in the surface of the cylinrical roller; supporting rods are welded on a left rack and a right rack, U-shaped grooves are formed in upper ends of the supporting rods, and two ends of a flat iron are respectively placed in the U-shape grooves in the upper end of the support rods.
Abstract: The invention discloses a roving feeding device capable of preventing lap sticking. The device is characterized in that a cylindrical roller is mounted and fixed on an extension shaft replaced for the left end shaft of an upper compression roller, and a curved groove is formed in the surface of the cylindrical roller; supporting rods are welded on a left rack and a right rack, U-shaped grooves are formed in the upper ends of the supporting rods, and two ends of a flat iron are respectively placed in the U-shaped grooves in the upper ends of the supporting rods; the left end of the flat iron is welded with the upper end of a guide rod together, and the spherical lower end of the guide rod is arranged in the curved groove on the cylindrical roller; bell mouths are respectively mounted on the flat iron, the distance between every two bell mouths is 20 to 30 centimeters, and the distance between the first bell mouth mounted at the left end and the last bell mouth mounted at the right end is greater than that of the left end and the right end of relative laps by 10 to 15 centimeters; the curved groove is a one-way closed curved groove, the curve of the curve groove is expanded as a sine function graph, and the absolute distance between the two peaks of the curve is 15 to 20 centimeters.
Patent•
10 Jan 2014
TL;DR: In this paper, a device for liquid degassing by means of swirling or centrifugal force coupled with a pressure gradient is described, which comprises a cavity with an inlet for liquid-gas mixture, a gas outlet and a liquid outlet.
Abstract: The present invention relates to a device for liquid degassing by means of swirling or centrifugal force coupled with a pressure gradient. This device comprises a cavity. The cavity is furnished with an inlet for liquid-gas mixture, a gas outlet and a liquid outlet. The gas outlet is inserted into the cavity through the top end of the cavity and positioned around 0.1-3 times the maximum diameter of the cavity from the top of the cavity. Specifically, an overflow pipe with the diameter gradually increasing from the bottom to the top was used as the gas outlet. The overflow pipe is further furnished with a bell mouth at the bottom part.
Patent•
06 May 2021
TL;DR: In this article, an outdoor unit for an air conditioner device consisting of a bell mouth having a first tapered part in which the inside diameter on the upstream side from which air flows in is greater than the inside size on the downstream side, and a straight pipe part extending downstream in a straight line from the first Tapered part.
Abstract: This outdoor unit for an air conditioner device comprises a bell mouth having a first tapered part in which the inside diameter on the upstream side from which air flows in is greater than the inside diameter on the downstream side, and a straight pipe part extending downstream in a straight line from the first tapered part. The first tapered part has a first bend part forming an air inflow port, a second bend part having a smaller inside diameter than the first bend part, and a linking part that is continuous from the first bend part and the second bend part and that has an inner surface extending in a straight line. The angle of the inner surface of the linking part with respect to the direction of the axis of the straight pipe part is at least 33°. In the direction of the axis of the straight pipe part, the ratio of the sum of a first length of the first tapered part and a second length of the straight pipe part relative to the total length of the bell mouth is below 0.76.
Patent•
04 Oct 2018
TL;DR: In this paper, a motor 65 is attached to the bottom wall 8a of a casing 8. In the casing 8, a lower layer scroll part 14 for housing a lower-layer blowing fan 50 is provided separate and upward from the bottom-wall 8a.
Abstract: A motor 65 is attached to the bottom wall 8a of a casing 8. In the casing 8, a lower layer scroll part 14 for housing a lower layer blowing fan 50 is provided separate and upward from the bottom wall 8a. A lower layer bell mouth forming member 60 for forming a lower layer bell mouth 61a connected to the inside of the lower layer scroll part 14 is provided. In the lower layer bell mouth forming member 60, a motor cover 62 for covering the motor 65 from above is provided.