Liquid-injected compressor with at least two cooperating compressor elements
AssigneeAtlas Copco Airpower N.V.
InventorsJoost Goris, Philippe Ernens
Life of this patent
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Abstract
A liquid-injected compressor with at least two cooperating compressor elements (2 and 3) is provided. The compressor elements are mounted in a housing (1). At least one of the compressor elements is rotatable and is bearing-mounted with a shaft end (7, 8, 13, 14) in the housing (1). The compressor is provided with an inlet (22) and an outlet (17-18-19) which are connected to the inside of the housing (1). The shaft end (14) of the rotatable compressor element (3) is situated in the outlet (17-18-19) in the housing (1). At least one body (20 or 41), made of material which is permeable to gas, is fixed on this shaft (14), forming a filter which practically entirely seals the outlet (17-18-19) and only lets the compressed gas through.
Claims27
A liquid-injected gas compressor, comprising:
- a housing defining an inner chamber;
- an inlet and an outlet in said housing connected to said inner chamber;
- at least two cooperating compressor elements mounted in said inner chamber, at least one of said compressor elements being rotatable and bearing-mounted with a shaft end in said housing, said shaft end being located in said outlet;
- and
- at least one body made of material that is permeable to gas, said body being fixed on said shaft end and forming a filter which virtually entirely seals said outlet and permits only flow of compressed gas therethrough.
A liquid-injected gas compressor according to claim 23, wherein said body comprises:
- an outer layer made of woven metal wire;
- and
- an inner layer made of a combination of woven metal wire and a material selected from the group consisting of synthetic fiber and glass fiber.
Dependencies are inferred from the claim text.