US Patent 7390180 Oil pumping device of hermetic compressor
Patent 7390180 was granted and assigned to LG on June, 2008 by the United States Patent and Trademark Office.
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Patent abstract
A hermetic compressor uses an oil pump that includes a trochoid gear. Therefore, regardless of the rotation speed of a driving motor of the compressor, a sufficient amount of oil can always be pumped. The oil pump unit may include a plurality of suction holes with openings at different heights. If the refrigerant and oil separate, at least one of the openings will admit oil into the oil pump unit, to ensure lubricating oil is supplied to the moving parts of the compressor.
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US Patent 07390180 Oil pumping device of hermetic compressor US Patent 7390180 Oil pumping device of hermetic compressor
Infobox
Patent Number
0739018000
Patent Number
739018000
Edits on 1 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
073901800
Date of Patent
June 24, 2008
0Patent Application Number
115274720
Date Filed
September 27, 2006
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
073901800
Date of Patent
June 24, 2008
0Patent Application Number
115274720
Date Filed
September 27, 2006
0Official Website
Patent Primary Examiner
Edits on 9 Jun, 2022
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US Patent 07390180 Oil pumping device of hermetic compressor
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07390180
Date of patent
June 24, 2008
Patent application number
11527472
Date Filed
September 27, 2006
Patent primary examiner
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