Bell mouth

About: Bell mouth is a research topic. Over the lifetime, 603 publications have been published within this topic receiving 1624 citations.

Gas cylinder bottle screw processingequipment

Abstract: The utility model discloses a gas cylinder bottle screw processingequipment, including anchor clamps and cutter, anchor clamps include with gas cylinder bottom cooperation by the pagoda of bowls of cylinder driven and with the regional complex locating piece of gas cylinder shoulder arc, the locating piece has the bell mouth that air feed bottle bottleneck passed, is the cone angle of bell mouth 125 130, is the diameter of upper base circle 70 75mm, the bell mouth inner wall is leaned on to regional subsides of gas cylinder shoulder arc during processing. The utility model discloses utilize the common centre gripping of pagoda of bowls and locating piece to fix the gas cylinder, utilize the regional cooperation of circular arc of bell mouth and gas cylinder shoulder, the tapering in limit fixed cone shape hole and go up bottom circle diameter, guarantee the bell mouth paste lean on the gas cylinder the position diameter 100mm the near, be close to gas bottle opening, can reduce because of the center deviation that bottleneck processing and thermal treatment caused, the neck cutting point was riveted to this position the while, helped thread length's uniformity.

Convenient pipe union

Abstract: The utility model provides a convenient pipe union The convenient pipe union has the structure scheme that four stages of stepped counter bores which diminish from outside to inside are formed at one end of a pipe union body, a liner bushing is mounted in the first stage of counter bore in a pressing manner, a rubber seal ring with a tapered inner hole is mounted in the third stage of counter bore, and a spacing check ring for the rubber seal ring is mounted in the fourth stage of counter bore; a bell mouth is formed at one end of a jacket, a plurality of axial grooves which extend from the bell mouth to the inside are uniformly distributed on the circumference of the jacket, the outside diameter of the liner bushing, the inside diameter of the second stage of counter bore, the big end of the tapered hole of the rubber seal ring, the inner hole of the jacket are all corresponding to the outside diameter of a nylon pipe to be connected, and a tapered hole section is formed on the jacket and at an inner hole corresponding to the bell mouth; and a pressing sleeve is sleeved on the jacket and mounted in the forth stage of counter bore in a pressing manner, and the end part of the pressing sleeve is propped against the spacing check ring The convenient pipe union is directly inserted into the nylon pipe for connection, so that the air tightness is good, air leakage is avoided, the assembly efficiency is greatly improved, and the rotating space required by a spanner for tightening in present assembly is reduced

Dust binding unit

Abstract: FIELD: dust binding units; precipitation of dust on dusting surfaces. ^ SUBSTANCE: dust binding unit includes cylindrical casing, two cone-shaped bell mouths adjoining both end faces of casing; bell mouth is provided with fan and pneumohydraulic injector on one side; on other side, injector-mist former and water and compressed air supply passages are provided. Proposed unit is provided with heater-reservoir filled with bio-adhesive solution, injectors-dispersers, system supplying solution to injectors-dispersers mounted in parallel with pneumohydraulic and mist-forming injectors. Sapropel used as bio-adhesive solution form bound structure in upper layer of coat which possesses adequate strength and wind and water resistance, as well as temperature resistance; besides that, it facilitates growth of plants. ^ EFFECT: enhanced durability and efficiency. ^ 2 cl, 1 dwg

Air blower and air conditioner using the same

Abstract: PROBLEM TO BE SOLVED: To provide an air blower capable reducing the noise without causing the deterioration of air blowing performance and an air conditioner using the same. SOLUTION: The air blower is equipped with a deviation means 10 for deviating a leakage flow A1 flowing into a front edge 4a of a vane through the clearance 11 with a bell mouth 8 near the rear edge 4b of the vane at the upstream edge part of a shroud. According to such constitution, the leakage flow A1 is deviated toward the rear edge 4b of the vane by the deviation means 10, a flow area in a part of the vane 4 becomes a local area at the rear edge 4b side of the vane and near the shroud 3, as a result, the interference of the leakage flow A1 with a main stream flow A2 is prevented as much as possible, and turbulence of the air flow is reduced. Therefore, air blowing sound is effectively reduced and a silent operation of the air blower is obtained. The leakage flow A1 is not extinguished and the flowing area is shifted to the area at the rear edge 4b side of the vane 4 and near the shroud 3, therefore, the effect to enhance the air blowing performance by speeding up the flow of the mainstream flow A2 of the leakage flow A1 is kept. COPYRIGHT: (C)2010,JPO&INPIT