Non-lubricated system with abradable sealing element, corresponding sealing element and method for assembling the system
AssigneeAtlas Copco Airpower, Naamloze Vennootschap
InventorsKaren Anna Leon Marien, Guido Jozef Christian Peeters
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Abstract
A non-lubricated system for pumping a gas, includes a stationary stator with a housing that includes a rotor cavity and at least one rotatable rotor element incorporated within the rotor cavity. The stator includes at least one self-supporting sealing element, incorporated within the rotor cavity between an end face of at least one of the rotor elements and an interior wall of the housing to form a seal along the corresponding end face. At least one self-supporting sealing element is provided with an abradable coating on at least one side facing the rotor.
Claims23
A non-lubricated system for pumping a gas, comprising a stationary stator with a housing comprising a rotor cavity and at least one rotatable rotor element incorporated within the rotor cavity, where the stator further comprises at least one self-supporting sealing element, incorporated in the rotor cavity between an end face of at least one of the rotor elements and an interior wall of the housing, to form a seal along the end face, wherein an abradable coating is on at least one side facing the corresponding rotor element of the at least one self-supporting sealing element, wherein at least the abarable coating consists of a carbon matrix.
A non-lubricated system for pumping a gas, comprising a stationary stator with a housing comprising a rotor cavity and at least one rotatable rotor element incorporated within the rotor cavity, where the stator further comprises at least one self-supporting sealing element, incorporated in the rotor cavity between an end face of at least one of the rotor elements and an interior wall of the housing, to form a seal along the end face, wherein an abradable coating is on at least one side facing the corresponding rotor element of the at least one self-supporting sealing element, wherein at least one end face of at least one of the rotor elements is notched around a rotor shaft of the rotor element and wherein the abradable coating of the at least one self-supporting sealing element present there comprises a ring extending into the notch.
Dependencies are inferred from the claim text.