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:
Nov. 04, 2025
Filed:
Jun. 27, 2022
Kaeser Kompressoren SE, Coburg, DE;
Dirk Simross, Coburg, DE;
KAESER KOMPRESSOREN SE, Coburg, DE;
Abstract
The invention relates to a dry-compressing or oil-free compressor for generating a compressed gas and a method for oil separation for a dry-compressing compressor (). The compressor has a compressor housing (), a compression chamber () and at least one oil chamber (), in which an oil-lubricated bearing () of the rotor bearing () is accommodated, as well as a shaft seal arrangement (), which is arranged between the oil-lubricated bearing () and the compression chamber (). The shaft seal arrangement () has an outer seal () facing the oil-lubricated bearing () and an inner seal () facing the compression chamber (), wherein at least one sealing gas chamber () for receiving sealing gas is formed between the outer seal () and the inner seal (). The oil chamber () has at least one gas inlet for a sealing gas flow from the sealing gas chamber () and a gas outlet () for connection to an oil separator (). The oil chamber () provides an oil chamber pressure pthat exceeds the ambient pressure pof the compressor housing () by an oil separation pressure difference Δp.