Showing papers on "Bell mouth published in 1992"

Forced heating car radiator

Abstract: The utility model relates to a forced-heating machine for vehicles, which is used for automobiles or tractors. By using the heat energy of engine exhaust to heat air, the utility model can quickly improve the temperature of air after the engine is started (5 to 10 minutes) and is used to heat for carriages. The utility model comprises a bell mouth for air inlet 5, a heat exchanger 7, a hot-air control valve 15, a hot-air outlet 16, air guide pipes 6, 14, etc. The heat exchanger is positioned at the lower part of an exhaust pipe of the engine and the outside of the exhaust pipe is added and installed the heat exchanger; the utility model is provided with a spiral-typed plate which can make inlet air rotate a plurality of rounds to absorb the sporadic heat from the exhaust passage to enhance temperature, and the heated air is introduced into a driving cab or a carriage to heat. The utility model can be made into different sizes according to the different model of vehicles to meet requirements.

Rolling automatic grade pipe expander

Abstract: The utility model relates to a rolling automatic grade pipe expander for expanding a metal pipe mouth into a bell mouth, and is composed of a force applying mechanism, a clamp mechanism, and an automatic grade separation mechanism. When the utility model is fixed to a T-slot at the lower part of a body by an expanding pipe through a clamp plate and the clamp mechanism, not only the autorotation but also the revolution of a cone body can be realized, while the cone body also has a down feed as long as a handle is rotated. Thus the rolling of the pipe mouth can be realized, when the certain depth is reached, that is to say, the bell mouth is molded, the rolling force of the cone body is bigger than the frictional force between grade separation pins. The grade separation pins are separated and generate the disengaging of the gear to delimit the depth of an expanding pipe effectively. The utility model has the characteristics of reasonable structure, convenient use, high precision of the mouth expanding, etc.

Ceiling ventilating fan

Abstract: PURPOSE:To contrive the effective reduction of noise in a ceiling ventilating fan, provided with a guide member for guiding suction air CONSTITUTION:A fan casing 5, having a bell mouth 6 on a lower plate 5a, is provided in an outer frame 1 in a ceiling while a centrifugal fan 10, driven by a fan motor 9, is provided in the fan casing 5 A guide member 11, equipped with a tapered surface unit 11b for guiding suction air toward the bell mouth 6 so as to flow smoothly, is provided below the lower plate 5a of the fan casing 5 The mounting part 11c of the guide member 11 is provided so as to be projected upwardly than the upper end rim of the guide member 11 whereby a gap S, having the size of 2-15mm, is formed between the guide member 11 and the fan casing 5

Indoor device of air conditioner

Abstract: PURPOSE:To provide a small-sized air conditioner achieved by the effective utilization of a space within an external box of an air conditioner, store each of electrical components within an electrical part box for an operation control to eliminate an air passage resistance by the electrical components and always keep a constant relation of a positional relation between a bell mouth for air blowing vanes and the electrical component box CONSTITUTION:A bell mouth oppositely formed to air blowing vanes 7a for a heat exchanger 10 within an outer box 5 of an indoor device is formed with a converging part An electrical component box 11 for an operation control having each of electrical components arranged therein is installed at an outer circumference of the converging part and they are always kept at a constant positional relation with the air blowing vanes 7a With such an arrangement, the air conditioner can be set in a small-sized device through the effective utilization of space in the outer box, the air passage resistance by each of the electrical components is eliminated, further the positional relation between the bell mouth and electrical component box for operation control in respect to the air blowing vanes can be always kept constant In addition, a displacement in positional relation under an assembled state after inspection of an electrical circuit or the like can be eliminated

Bell mouth block and placing method thereof

Abstract: PURPOSE:To make it possible to place piled bell mouth blocks of a good appearance, in which the manhours for working formworks is halved, and the front faces of the piled bell mouth blocks, ie, the faces on the side of working holes existing are placed in a single plane, and therefore, a finished face is made uniform, by using the bell mouth block provided with a tapped hole on its front face CONSTITUTION:In a bell mouth block 1, a tapped hole 13 is provided, and in bell mouth blocks 2, 3, tapped holes 23, 33 are provided respectively, and further, they are piled in a side groove 6 A front side formwork 7A is in contact with the front faces of the piled bell mouth blocks, and thereby, the side groove 6 is sectioned In the front side formwork 7a, bolt holes 71A, 72A, 73A are provided at the positions corresponding to the tapped holes of the bell mouth blocks The front faces of the bell mouth blocks are contacted closely with the form face of the front side formwork 7A by fastening bolts 9 Then, a rear side formwork 7B provided with notches 71B constituting a profile shape is fitted on the rear edges of the bell mouth blocks, and thereby, the side groove 6 is sectioned Between the front side formwork 7A and the rear side formwork 7B, a concrete wall 10 is formed by placing, and the piled bell mouth blocks are fixed

Nuclear fuel assembly comprising a lower end fitting with flow diffusers

Abstract: An improved lower end fitting 10 (L.E.F.) having a bell mouth multistage type of flow jet diffuser 30 with stages 31, 31' decreases pressure drop 15-20% over a single stage bell mouth diffuser and more evenly distributes flow and adds strength. It includes neutron thimble flux impingement shield 50 of instrument and/or cable. Each diffuser stage 31, 31' is S.S., of circular cross-sect. and parabolic to optimize diffusion. The multistage shape is based on lower core plate 20 flow hole 24 geometry, L.E.F. design and reactor flow rate. Thinner L.E.F. legs 36, smaller L.E.F. gussets 38 and thinner L.E.F. flow plates 22 are possible.