Patents in subclass Pumps/Armature Within Pumping Member

Parent class: Pumps

Number Patent title Issue Date
07371056 Fluid pump, cooling system and electrical appliance

A fluid pump includes a case including a pump chamber, a reserve tank for storing spare liquid and located in the case but outside the pump chamber and formed so that a space independent of the pump chamber is defined by the reserve tank,...
05/13/2008
07367787 Pumping unit for a liquid medium

A pumping unit is provided with a pump that is partially disposed in a stator of an electric motor. The rotor is at an opposite end from the pump and is connected to the pump shaft to drive it for fluid flow. The pump shaft can be...
05/06/2008
07319587 Electronic apparatus having pump unit

An electronic apparatus includes a housing having a heat generating component, a heat radiating portion which radiates heat generated by the heat generating component, a pump unit having an impeller and a heat receiving portion thermally...
01/15/2008
07215546 Pump, electronic apparatus, and cooling system

The present invention provides a cooling pump, an electronic apparatus, and a cooling system in which positioning between a heat generating unit and a cooling pump can be achieved easily. The cooling pump according to the invention...
05/08/2007
07211915 Motor assembly using redundant bearings and support elements

A motor assembly comprises a plurality of redundant bearings, a plurality of coaxial support elements, with at least one of the support elements rotatable about an axis of rotation, and an armature rotatably guided by the plurality of...
05/01/2007
07209355 Cooling device and an electronic apparatus including the same

A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material,...
04/24/2007
07132772 Electric fan for vehicle use

The cooling air introducing port 24 is open to a lower portion of an axial direction end portion of the motor housing member 11, 12, the water-proof cover 25 for covering the cooling air introducing port 24 is attached to the outside of...
11/07/2006
07070398 Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller

A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings including an axial bearing to support the impeller axially in the cavity. The axial bearing...
07/04/2006
06999840 Vacuum pump

A vacuum pump (10) includes a control device (20) for processing operational data and operational instructions. Further, the vacuum pump (10) includes a touch screen (40) serving as display for displaying the operational data callable...
02/14/2006
06866488 Compact molecular-drag vacuum pump

A molecular drag vacuum pump for pumping a gas from an inlet to an outlet includes a high-speed spinning disk disposed within a housing. Gas flows through passageways in the housing adjacent the disk, where it comes into contact with...
03/15/2005
06846168 Pump with an electrodynamically supported impeller and a hydrodynamic bearing between the impeller and the stator

A pump includes an impeller, a stator, and a plurality of magnets forming bearing poles coupled to a selected one of the stator or the impeller. The pump further includes a plurality of shorted coils coupled to the other of the stator and...
01/25/2005
06830440 External rotor brushless DC motor

An external rotor brushless DC motor for use in a fan, or other similar application, the motor including a stator assembly base having a base plate, a number of stator windings affixed to the stator base, and circuitry associated with the...
12/14/2004
06808371 Ultra-thin pump and cooling system including the pump

An ultra-thin pump of the present invention includes a ring-shaped impeller including many vanes arranged along its outer region and a rotor magnet at its inner region, a motor stator provided in a space encircled by an inner peripheral...
10/26/2004
06644938 Turbo molecular pump

The present invention provides a turbo molecular pump capable of suppressing temperature rise in an electronic circuit section within a range, without losing airtight property thereof with a simple construction. In a base section of a...
11/11/2003
06641378 Pump with electrodynamically supported impeller

A pump includes an impeller, a stator, and a plurality of permanent magnets forming bearing poles coupled to a selected one of the stator or the impeller. The pump further includes a plurality of shorted coils coupled to the other of the...
11/04/2003
06585498 Motor-pump unit with pump shaft pinion enmeshed with motor rotor

A motor-pump unit including an electric motor and a pump. The pump is concentrically surrounded by the rotor/stator of the motor. The rotor of the electric motor is U-shaped, viewed in an axial section. The cross-piece of the "U", in the...
07/01/2003
06575713 Vaccum pump

There is provided a vacuum pump which suppresses the propagation of vibrations to an external container without the use of a damper. The vacuum pump has an outer cylindrical portion, a rotor portion and a stator portion accommodated...
06/10/2003
06454547 Delivery unit

A delivery unit which is provided for feeding motor-vehicle fuel has an electric motor (1) with vanes (1) arranged on the lateral surface of a rotor (4). During rotation of the rotor (4), the vanes (11) feed the fuel in a pump channel...
09/24/2002
5986366 Rotor for a dynamoelectric machine

A rotor (10) is provided for a dynamoelectric machine. The rotor (10) includes a rotor shaft (12) and a laminated core (14). The rotor shaft (12) is adapted to mount the rotor (10) for rotation about an axis (13) of rotation in a...
11/16/1999
5931660 Blower for gas premix burners

A gas premix burner in which gas and air are mixed in a suction region of an impeller to form a combustion mixture. The impeller is associated with a blower housing and an electronic control circuit board, all of which are arranged...
08/03/1999
5649811 Combination motor and pump assembly

A combination motor and pump assembly comprising a housing, a shaft rotaty mounted in the housing, and an impeller fixed to the shaft in the housing, said impeller comprising alternately magnetically polarized portions. The assembly...
07/22/1997
5650678 Brushless DC motor and bearing holding therefor

A bearing holder capable of holding therein a pair of bearings while keeping axes of the bearings to be positively aligned with each other and minimizing stress applied to the bearings. The bearing holder which is made of plastic resin...
07/22/1997