The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Sep. 04, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka, JP;
Abstract
Balancer shaftandrotatably set through bearingsand an oil pumpdriven by power from the balancer shaftandare provided in a balancer housing. Oil discharged from an outlet portionof the oil pumpis supplied to a main oil gallerythrough an outlet passage. A bearing filterthat filters a part of the oil is provided in the outlet passagethat extends from the outlet portion. A communication passagethat branches off from the outlet passageand communicates with the bearingssupplies a part of the oil having been filtered by the bearing filterto the bearings. By filtering the oil that is going to be supplied to the bearing portion, decrease in durability of the bearing portion can be suppressed.