2784results about "Jet pumps" patented technology

A fan assembly for creating an air current includes a bladeless fan assembly including a nozzle and a device for creating an air flow through the nozzle. The nozzle includes an interior passage and a mouth receiving the air flow from the interior passage. A Coanda surface located adjacent the mouth and over which the mouth is arranged to direct the air flow. The fan provides an arrangement producing an air current and a flow of cooling air created without requiring a bladed fan, that is, the air flow is created by a bladeless fan.

This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the heating value of the converted hydrocarbons is recovered as heating value of the product methane. The liquid feed is distributed over a fluidized solid particulate catalyst containing alkali metal and carbon as petroleum coke at elevated temperature and pressure from the lower stage and transported to the upper stage of a two-stage reactor. Particulate solids containing carbon and alkali metal are circulated between the two stages. Superheated steam and recycled hydrogen and carbon monoxide are fed to the lower stage, fluidizing the particulate solids and gasifying some of the carbon. The gas phase from the lower stage passes through the upper stage, completing the reaction of the gas phase.

A fan assembly for creating an air current includes a base having an air inlet and an air outlet, the base housing an impeller and a motor for rotating the impeller to create an air flow passing from the air inlet to the air outlet. The fan assembly further includes a vertically oriented, elongate annular nozzle including an interior passage having an air inlet for receiving the air flow from the base and a mouth for emitting the air flow, the nozzle defining an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth.

A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.

A bladeless fan assembly for creating an air current includes a nozzle mounted on a base. The nozzle comprises an interior passage and a mouth for receiving the air flow from the interior passage and through which the air flow is emitted from the fan assembly. The nozzle defines an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle is detachable from the base, which is preferably sized to be accommodated within the opening of the nozzle for transportation.

A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, and a casing comprising at least one air outlet for emitting the first portion of the air flow, and first channel means for conveying the first portion of the air flow to said at least one air outlet. To cool part of the casing, the casing includes means for diverting a second portion of the air flow away from said at least one heater, and second channel means for conveying the second portion of the air flow along an internal surface of the casing. This second portion of the air flow may merge with the first portion within the casing, or it may be emitted through at least one second air outlet of the casing.

A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, means for diverting a second portion of the air flow away from said at least one heater, and a casing comprising at least one first air outlet for emitting the first portion of the air flow and at least one second air outlet from emitting the second portion of the air flow. To cool an external surface of the casing, at least one second air outlet is arranged to direct at least part of the second portion of the air flow over the external surface.

A fan assembly for creating an air current includes an air outlet mounted on a stand. The stand includes a base and a body tiltable relative to the base. Each of the base and the body has an outer surface shaped so that adjoining portions of the outer surfaces are substantially flush when the body is in the untilted position.

A bladeless fan assembly includes a nozzle mounted on a base housing a motor and an impeller driven by the motor for creating an air flow. The nozzle includes an interior passage for receiving the air flow, a mouth for emitting the air flow, and a plurality of stationary guide vanes located within the interior passage and each for directing a portion of the air flow towards the mouth. The nozzle defines an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth.

The invention discloses a fan without fan blades and relates to a fan device, which is characterized by comprising an airflow generating device (1), a nozzle (2) and a connecting pipe (3), wherein the nozzle comprises an internal channel (6), an exhaust port (4) and a closed loop, the airflow generating device is used for producing high-pressure airflow, at least part of the airflow generating device is positioned in the closed loop of the nozzle, and the connecting pipe is connected between the airflow generating device and the nozzle, thereby being a channel for circulation of the high-pressure airflow from the airflow generating device to the nozzle. The device has compact structure and low noise and can provide the airflow with uniform flow rate.

A fan assembly for creating an air current includes an air outlet mounted on a stand. The stand includes a base and a body tiltable relative to the base. The fan assembly has a centre of gravity located so that when the base is located on a substantially horizontal support surface, the projection of the centre of gravity on the support surface is within the footprint of the base when the body is in a fully tilted position.

A pedestal for a fan assembly includes a telescopic duct for conveying an air flow to an outlet of the fan assembly. The duct includes an outer tubular member having a first stop member, an inner tubular member located at least partially within and slidable relative to the outer tubular member, the inner tubular member having a second stop member for engaging the first stop member to inhibit withdrawal of the inner tubular member from the outer tubular member, and a mainspring rotatably mounted on the second stop member, the mainspring having a free end retained by the first stop member.

The invention discloses an airflow generating method which comprises the following steps: an airflow generating unit and a nozzle are provided, wherein the nozzle is provided with an inner passage and a vent port, and the inner passage is communicated with the interior of the airflow generating unit; the airflow provided by the airflow generating unit is introduced into the inner passage, and thegage pressure of the airflow in the inner passage is 50-5000 Pa; the airflow in the inner passage is discharged from the vent port, and the discharged air does not produce the Coanda effect on the nozzle and entrains the air around the vent port, thereby amplifying the airflow. The invention also discloses an airflow generating device by using the method. The invention has the advantages of easy cleaning, high safety, high efficiency, small size, no effect on light rays, low noise and the like, and can be widely used in various fan units.

The invention discloses a bladeless fan, and relates to a fan device. The fan device comprises a base and a nozzle arranged on the base, wherein the nozzle comprises an internal channel and an air outlet; the nozzle basically extends orthogonally relative to an axis to limit an opening; and air outside the fan is sucked by airflow jetted from the air outlet through the opening. The fan device is characterized in that: the base comprises a pedestal and a support fixed on the pedestal; the nozzle is arranged on the support; the fan has a height and a width which are vertical to the axis; the width of the support of the fan is at least 10 millimeters less than that of the pedestal; the width of the pedestal of the fan is greater than 75 percent of the width of the nozzle and smaller than 125 percent of the width of the nozzle; and selectively, the nozzle, the pedestal and the support have depths along the direction of the axis, the depth of the support is at least 10 millimeters less than that of the pedestal, the depth of the pedestal is greater than 200 percent of the depth of the nozzle and smaller than 350 percent of the depth of the nozzle. The fan device can be safely and stably placed and used and has a simple and attractive structure.

A fan assembly for creating an air current includes an air inlet, an air outlet, an impeller, a motor for rotating the impeller to create an air flow passing from the air inlet to the air outlet, the air outlet comprising an interior passage for receiving the air flow and a mouth for emitting the air flow, the air outlet defining an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth, a control circuit for controlling the motor, a remote control for transmitting control signals to the control circuit, and at least one magnet for attaching the remote control to the air outlet.

A fan assembly includes a device for creating an air flow and an air outlet for emitting the air flow, the air outlet being mounted on a pedestal including a base and a height adjustable stand. The base includes an oscillating mechanism for oscillating the stand and the air outlet.

The invention discloses an electronic ice fan. An ice containing box is arranged below a body seat; a pressure increasing axial flow fan is arranged in the body seat; a suction port is formed below the axial flow fan; an annular flow increasing ring is arranged above the body seat; a circulation channel and a jet flow port are formed in the flow increasing ring; a mist stimulation pipe is arranged above the pressure increasing axial flow fan; a mist stimulator is arranged on the lower part of the mist stimulation pipe and connected with the ice containing box below; the mist stimulation pipe is communicated with the pressure increasing ring above; the ice water in the ice containing box flows to the mist stimulator; the pressure increasing axial flow fan sucks air from the lower suction opening to form high-pressure air flow; the high-pressure air flow flows through the mist stimulation pipe and blows the water mist of the mist stimulator through the circulation channel to form ice mist at the jet flow port of the flow increasing ring; and the ice mist is immediately gasified into ice-cold air. The invention aims at providing an air cooler device which solves the problems of small mist amount and non-cool air of the air cooler by using the axial flow fan, the flow increasing ring and the mist stimulator; and moreover, as no fan blade is arranged in the flow increasing ring, the effects of large mist amount and cool air of a bladeless ice fan are realized.