Class / Patent application number | Description | Number of patent applications / Date published |
417423500 | Plural units | 7 |
20080286135 | SERIAL AXIAL FAN UNIT - A serial axial fan unit includes first and second axial fans and a spacer arranged therebetween and connected thereto. First and second impellers respectively provided in the first and second axial fans have a diameter in a range from approximately 25 mm to approximately 200 mm, for example. The axial height of the spacer is in a ranged of approximately 1.5 mm to approximately 8 mm, for example. Due to the spacer, the first and second axial fans are spaced apart from each other by an appropriate distance. Thus, a harsh noise caused by interference occurring when air from the first axial fan flows into the second axial fan is reduced. Also, the static pressure to airflow volume characteristics of the serial axial fan for a given sound value is improved. | 11-20-2008 |
20090155103 | Cooling Fan Module for a Motor Vehicle - A cooling fan module for a motor vehicle. has a first fan motor which is used to drive a first cooling fan and a second fan motor which is used to drive a second cooling fan. A control unit ( | 06-18-2009 |
20090155104 | CONTRA-ROTATING AXIAL FLOW FAN UNIT - An axial flow fan unit includes an intake side axial flow fan, an exhaust side axial flow fan, and at least one intermediate axial flow fan. Each of the axial flow fans includes an impeller having blades rotatable about a central rotation axis, a motor arranged to rotate the intake side impeller, and a housing having an inner circumferential surface that surrounds the impeller. The rotational direction of the impeller in the intermediate axial flow fan is different from that of the impellers adjacent thereto. | 06-18-2009 |
20110052433 | FAN HAVING TWO IMPELLERS - A fan includes a first motor having a first rotor and a second motor having a second rotor which is rotationally connected to the first rotor. The fan further comprises a first impeller which, when driven by the first motor, rotates along a first direction and creates a main flow along a direction perpendicular to the periphery thereof and a tangential flow along the tangent thereof. The fan also includes a second impeller which, when driven by the second motor, rotates along the reverse direction of the first direction and impel the tangential flow to the direction perpendicular to the periphery of the first impeller. | 03-03-2011 |
20110097225 | AIR COMPRESSION AND EXPANSION SYSTEM WITH SINGLE SHAFT COMPRESSOR AND TURBINE ARRANGEMENT - An air compression and expansion system having a combined motor-generator unit and a single drive shaft coupled to compressors and expanders is disclosed. The system includes a motor-generator unit, a drive shaft connected to the motor-generator unit configured to transmit rotational power to and from the motor-generator unit, a compressor system selectively coupleable to the drive shaft and positioned thereabout, and a turbine system selectively coupleable to the drive shaft and positioned thereabout, the turbine system positioned with the compressor system on a common side of the motor-generator unit. The air compression and expansion system also includes a compressor clutch attached to the compressor system and a turbine clutch attached to the turbine system. The compressor clutch and the turbine clutch are arranged coaxially about the drive shaft and configured to selectively couple and decouple the compressor system and the turbine system, respectively, to the drive shaft. | 04-28-2011 |
20130028763 | FAN ASSEMBLY - A fan assembly includes a nozzle and a body on which the nozzle is mounted. The nozzle has a rear section having at least one first air inlet, at least one first air outlet, and a first interior passage for conveying air from said at least one first air inlet to said at least one first air outlet; and a front section having at least one second air inlet, at least one second air outlet, and a second interior passage for conveying air from said at least one second air inlet to said at least one second air outlet. A first air flow through the first interior passage and a second air flow through the second interior passage are each generated within the body. At least one of the temperature, humidity, and electrical charge of the second air flow is changed before it enters the second interior passage. | 01-31-2013 |
20140044576 | Golf cart accessory fan - Disclosed is a self contained portable fan assembly for use with golf carts strategically positioned directly behind the seating area of a conventional golf cart. The portable fan assembly may include rechargeable batteries that can be charged within the assembly from an AC source or recharge directly from the golf cart batteries. The portable housing is constructed and arranged to span the stanchions of a conventional golf cart roof support employing an upper area of the seating area to provide housing support. Flexible straps permit ease of installation and removal. | 02-13-2014 |