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•
02 Mar 2017TL;DR: In this article, an impeller is driven by a drive motor and a scroll casing is used to redirect the air flow in the centrifugal direction, which is generated by the rotation of the impeller.
Abstract: A centrifugal blower is provided with: an impeller (2) rotationally driven by a drive motor (3); a scroll casing (4) provided with a suction opening surface (10) having an opening (9), the scroll casing (4) being further provided with a wall (12), the distance of which from an axis serving as the rotation center of the impeller (2) varies depending on the position of the wall (12), the scroll casing (4) redirecting the air flow in the centrifugal direction, which is generated by the rotation of the impeller (2), to one direction; an air intake section (13) provided with a bell mouth section (18) having a large-diameter-side end (16) located further toward the upstream side of the flow of sucked-in air than the suction opening surface (10); and a protrusion section (15) extending from the air intake section (13) in the direction perpendicular to the axis as the rotation center of the impeller (2) and away from the rotation center and surrounding a part of the bell mouth section (18).
Patent•
08 Jun 2018
TL;DR: In this paper, a one-way tuyere for a granary is described, which consists of a top plate and a hollow cylinder, a limiting ring is arranged on the inner wall of the hollow cylinder and a baffle is matched with the interior of the limiting ring.
Abstract: The invention discloses a one-way tuyere for a granary, and belongs to the technical field of granary tuyeres The one-way tuyere comprises a top plate and a hollow cylinder, a limiting ring is arranged on the inner wall of the hollow cylinder, a baffle is matched with the interior of the limiting ring, a small fan is installed inside the hollow cylinder, a guiding barrel column is fixed to the shell of the small fan, and an elastic member is fitted between the guiding barrel column and the baffle; a bell mouth is formed in one end of the hollow cylinder, the top plate is connected to the bellmouth through supporting columns, and the top plate comprises a first plate layer, a second plate layer and a semi-elliptical ball According to the one-way tuyere, the baffle is installed in the device and connected to the small fan installed in the hollow cylinder through a small spring, and the baffle is limited by the limiting ring, so that the air can only flow from inside to outside in onedirection
Patent•
05 Jun 2019
TL;DR: In this article, a system for coupling between a bend stiffener and a bell mouth was presented, comprising a plurality of locking mechanisms, where each locking mechanism was secured externally to the bend stiffeners and a movable lug was inserted in the interior of the bell mouth.
Abstract: The present invention provides a system for coupling between a bend stiffener (1) and a bell mouth (2) comprising a plurality of locking mechanisms (3), wherein each locking mechanism (3) is secured externally to the bell mouth (2) and comprises a movable lug (30) positioned such as to slope downwards, in which the lug (30) accesses the interior of the bell mouth (2) and is actuated by an elastic element (34) designed to exert pressure on the lug (30) in the direction of the interior of the bell mouth (2).
Patent•
25 Jan 2018
TL;DR: In this article, an air purifier consisting of a housing, a blower, a bell mouth, and a front surface panel removably mounted to the front surface of the housing is presented, and the filter is formed such that, when viewed from the side surface section side of the front surfaces panel, the filter has a greater width than the suction opening.
Abstract: Provided is an air purifier comprising: a housing; a blower provided within the housing; a bell mouth disposed on the suction side of the blower and having a bend which is bent axially from the peripheral edge of an air inlet; a front surface panel removably mounted to the front surface of the housing; a suction opening provided in at least one side surface section of both side surface sections of the front surface panel; and a filter which is mounted facing the suction opening and through which indoor air sucked in from the suction opening by the drive of the blower flows. The filter is mounted closer to the suction opening side than the start point of the bend of the bell mouth at a position away from the suction opening by 30 mm or more, and the filter is formed such that, when the filter is viewed from the side surface section side of the front surface panel, the filter has a greater width than the suction opening.
Patent•
20 Jan 2014
TL;DR: In this paper, a vehicle air conditioning system consisting of an air intake case, a scroll case, and a circular bell mouth is used to connect the air inlet room and the blower room by being equipped in the upper part of the scroll case.
Abstract: Provided is an intake system for a vehicle air conditioner The intake system comprises an air intake case, which has an inside and outside air converting door for selectively opening and closing an inside air inlet and an outside air outlet and an air inlet room; a scroll case, which is installed in the lower part of the air intake case and is arranged so that a blower fan can rotate inside, and which has an inlet unit where a filter equipped in the air intake case is inserted on one side; a circular bell mouth, which connects the air inlet room and the blower room by being equipped in the upper part of the scroll case; a filter mounting rib, which is installed in the upper part of the scroll case and supports the filter equipped in the air intake case from the lower part; and a guide unit, which is installed in the filter mounting rib and reduces noise generated when outside air flows in the bell mouth Accordingly, the guide unit disturbs the backflow of part of air flowing in the filter mounting rib, which is located in the upper part of the bell mouth and supports the filter from the lower part Therefore, the intake system can efficiently reduce low-frequency noise generated when air flows in the air conditioning device