Bell mouth

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

Apparatus for measuring differential pressure in air blower

Abstract: The present invention relates to an apparatus for measuring a differential pressure in an air blower, comprising: a bell mouth provided with an inlet for introducing air into the air blower; a differential pressure cover coupled to the bell mouth for transmitting an inlet pressure change through a tube; and a differential pressure measuring unit for detecting the inlet pressure change transmitted through the tube. According to the present invention, a differential pressure is measured in an intake port side of the air blower in which an air flow is most stable, while keeping the apparatus from acting as an air flow resistor so as to prevent the occurrence of turbulence, thereby allowing an accurate measurement of the differential pressure.

Blower and outdoor unit of air conditioner having the same

Abstract: Provided are a blower and an outdoor unit using the same, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency. The outdoor unit comprises: a bell mouth unit spaced at a predetermined distance in a radial direction from an outer circumferential end of a propeller fan to be disposed; a diffuser unit, of which an area of a flow passage is increased from an upstream side to the downstream side at a larger expansion ratio than the expansion ratio of the area of the flow passage at an end part of the downstream side of the bell mouth unit, installed on a downstream side of the bell mouth unit; and a stator unit having the multiple stators and disposed inside the diffuser unit.

Face identification device convenient to installation

Abstract: The utility model discloses a face identification device convenient to installation, including shell, cassette and bottom plate, open at shell one side outer wall top has the bell mouth, and the bellmouth is located the intermediate position of shell length direction, the toper outer wall of bell mouth bonds and has the reflector, shell one side outer wall has the display screen through the boltfastening, and the display screen is located the bell mouth under, shell one side outer wall has two pivoted light filling boards through the bolt fastening, and two light filling boards are located the display screen both sides respectively. The utility model discloses make installation that the display screen can be convenient to the draw -in groove of cassette in, needn't reach this effect through the structure of complicacy, improved the convenience of device for the device can optionally be installed on the wall or be subaerial, and the arbitrary rotation of arbitrary flexible and the hinge of telescopic link makes installing at bottom surface or wall top that the device can set one's mind at rest, does not worry that it produces to shoot the not good situation of effect.

Dam-less hydroelectric power station

Abstract: FIELD: small hydroelectric power stations engineering. ^ SUBSTANCE: hydroelectric power station has plate, placed at depth with slant toward flow for 1/3 depth with possible taking of energy of upper layer of water flow and raising said layer on some height, at least, one turbine placed in base of vertical hollow having bell mouth like inlet. Between slanted plate and bell mouth inlet of vertical hollow a hydraulic ram is placed, inlet of which is connected to upper end of slanted plate by supply pipe mounted at slant towards hydraulic ram and provided with bell mouth inlet at end on the side of plate. Outlet of hydraulic ram is connected to vertical hollow by force pipeline. Turbine may be mounted on vertical axis. In base of vertical hollow a cascade of turbines may be mounted on horizontal axes. ^ EFFECT: higher reliability, higher effectiveness. ^ 3 cl, 1 dwg

Install installation external member on end plate with steel strand wires

Abstract: The utility model relates to an install installation external member on end plate with steel strand wires, wherein, in steel strand wires pass through the bell mouth of clamping piece unit mount on the end plate, its characterized in that: include to be used for tightly overlapping clamping piece subassembly ejection to the top in the end plate bell mouth, reach for the locating pin of the length of control steel strand wires tip in the bell mouth, the front end of the tight cover in top is equipped with and is used for holding the cavity of locating pin. This installation external member three parts is as follows mainly constituteed, and it is few to relate to the part, and the simple structure of each part, and easily processing is with low costs.