Device for controlling noise and vibration from discharge pump

Application Number: 00109275
Application Date: 2000.06.16
Publication Number: 1278043
Publication Date: 2000.12.27
Priority Information: 2000/1/12 KR 1322/2000; 1999/6/16 KR 22516/1999; 1999/6/16 KR 22517/1999
International: F04D29/66
Applicant(s) Name: LG Electronics Inc.
Inventor(s) Name: Kim Joong-Ho;Cho Gi-Chol;Choe Song-Pong
Patent Agency Code: 11219
Patent Agent: gu gongxia
Abstract An apparatus for controlling a noise and a vibration of a drain pump, including: a magnet rotated by a mutual interaction with a stator that forms a magnetic field when power is applied thereto; a rotational shaft combined to the magnet; a coupling cylinder combined to an end portion of the rotational shaft; a first coupling member formed at one side of a circumferential portion of the coupling cylinder; an impeller including a tap receiving unit to which the coupling cylinder is inserted; a second coupling member formed at one side of the inner surface of the impeller and positioned at a predetermined portion of a rotation trajectory of the first coupling member; a buffer member positioned between the first coupling member and the second coupling member; and a fixed circular disk insertedly combined at a portion of the rotational shaft positioned at the lower side of the coupling cylinder so that its outer circumferential end portion is combined to the inner circumferential surface of the impeller.