FLAT BRUSHLESS MOTOR PUMP AND ELECTRIC WATER PUMP UNIT FOR VEHICLE EMPLOYING FLAT BRUSHLESS MOTOR PUMP

Title:

FLAT BRUSHLESS MOTOR PUMP AND ELECTRIC WATER PUMP UNIT FOR VEHICLE EMPLOYING FLAT BRUSHLESS MOTOR PUMP

Document Type and Number:

WIPO Patent Application WO/2007/072561

Kind Code:

A1

Abstract:

A flat brushless motor pump comprising a flat brushless motor, an impeller coupled with the rotating shaft of the flat brushless motor, a pump casing for containing the flat brushless motor and the impeller and having a suction opening for sucking fluid and a delivery opening for delivering fluid, and a motor cover constituting a part of the pump casing and holding the bearing of the flat brushless motor which bears the rotating shaft rotatably wherein the fluid is sucked from the suction opening by the rotation of the rotting shaft and delivered from the delivery opening. The flat brushless motor comprises a stator section having a core around which a plurality of armature coils are wound and a terminal connected electrically with the armature coils and formed by resin molding the core and the terminal watertightly, and a rotor section formed of a magnet arranged oppositely to the core through an air gap, the rotating shaft and a yoke secured to the rotating shaft and holding the magnet, wherein the bearing is an underwater bearing for sliding the rotating shaft by a water membrane.

Inventors:

YOSHIDA HIROSHI (JP)
YAGINUMA SHINICHI (JP)

Application Number:

PCT/JP2005/023611

Publication Date:

June 28, 2007

Filing Date:

December 22, 2005

Export Citation:

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Assignee:

YAMAMOTO DENKI KK (JP)
YOSHIDA HIROSHI (JP)
YAGINUMA SHINICHI (JP)

International Classes:

F04D13/06; F04D29/046; H02K21/24

Foreign References:

JPH0988868A	1997-03-31
JPH11166500A	1999-06-22
JP2005098163A	2005-04-14
JP2003214377A	2003-07-30
JPH0968194A	1997-03-11
JP2005218223A	2005-08-11
JP2004159428A	2004-06-03
JPH10196587A	1998-07-31
JPH01166792U	1989-11-22
JP2003343492A	2003-12-03
JP2005317797A	2005-11-10
JP2001304164A	2001-10-31
US20020166520A1	2002-11-14
JPH0510286A	1993-01-19

Other References: