ELECTRIC PUMP AND MOTOR - LG INNOTEK CO LTD

Title:

ELECTRIC PUMP AND MOTOR

Document Type and Number:

WIPO Patent Application WO/2019/054637

Kind Code:

A1

Abstract:

The present invention provides an electric pump, the electric pump comprising: a motor unit which includes a shaft, a rotor coupled to the shaft, and a stator disposed outside the rotor; a pump unit which includes a first rotor including a first lobe coupled to the motor unit and having a plurality of gear teeth, and a second rotor disposed outside the first rotor and including a second lobe; and a second cover including a second surface on which the pump unit is disposed, wherein the second surface has a second suction port and a second discharge port disposed thereon, and the second suction port provided on the second surface includes a third protrusion protruding to the inside of the second suction port. The angle formed by a first line connecting the center of the first rotor and the center of the second rotor, and a second line connecting the center of the first rotor and a distal end of the third protrusion is inversely proportional to the number of gear teeth of the first lobe.

Inventors:

LEE BYUNG SAM (KR)
KIM SANG TAE (KR)
KIM SU WON (KR)
PARK HYUN KAG (KR)
LEE JONG CHAN (KR)

Application Number:

PCT/KR2018/009004

Publication Date:

March 21, 2019

Filing Date:

August 08, 2018

Export Citation:

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Assignee:

LG INNOTEK CO LTD (KR)

International Classes:

F04C2/10; B60T13/74; B60T17/02; F16H57/04; H02K1/27; H02K21/14

Foreign References:

KR20120030929A	2012-03-29
KR20150081784A	2015-07-15
KR20150098909A	2015-08-31
KR20170045663A	2017-04-27
KR20150112245A	2015-10-07
US20150139831A1	2015-05-21

Other References: