US Patent 7896631 Vane pump
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Patent abstract
An oil supply groove 12 in communication with a pump room 2A is formed above a bearing 2B of a housing 2, and an open air groove 14 in communication with an atmospheric air is formed at a position rotated around the bearing 2B by 90° from the oil supply groove. In a shank 3B of a rotor 3, a branch passage 11a branching from an oil passage 11 formed in its axial direction to the diametrical direction of the shank, and an open air passage 13 formed in the direction perpendicular to the branch passage are formed.
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US Patent 07896631 Vane pump US Patent 7896631 Vane pump
Infobox
Patent Number
0789663100
Patent Number
789663100
Edits on 28 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
078966310
Date of Patent
March 1, 2011
0Patent Application Number
118842160
Date Filed
January 31, 2006
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
078966310
Date of Patent
March 1, 2011
0Patent Application Number
118842160
Date Filed
January 31, 2006
0Official Website
Patent Primary Examiner
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US Patent 07896631 Vane pump
Infobox
Is a
Patent jurisdiction
Patent number
07896631
Date of patent
March 1, 2011
Patent application number
11884216
Date Filed
January 31, 2006
Patent primary examiner
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