Apparatus for removing oil mist
AssigneeKabushiki Kaisha Sanetsu
InventorShigeo Hotta
Life of this patent
Estimating the term…
Abstract
An apparatus for removing oil mist includes a cylindrical main body having an air inlet at one end and an air outlet at the other side thereof. A cylindrical rotatable filter having one end open to the air inlet and a centrifugal fan disposed concentrically within the filter and rotatable therewith are positioned within the main body. An oil adsorbent layer is provided on the inner surface of the main body surrounding the filter. The air taken in through the air inlet is passed through the filter into the air outlet causing air-borne oil mist to adhere to the filter. That oil mist which coalesces on the filter is centrifugally forced outward, is adsorbed by the oil adsorbent layer, and thereafter travels through the oil absorbent layer for discharge through an oil drain channel.
Claims16
Apparatus for removing oil mist from an air stream comprising:
- a main body having an air inlet at one end thereof for the admission of a stream of oil mist-containing air and an outlet at the other end for the discharge of substantially oil-free air;
- a cylindrical filter rotatably mounted within said main body;
- a centrifugal fan rotatably mounted within said cylindrical filter and coaxial with said cylindrical filter so as to be rotatable therewith;
- drive means for driving said cylindrical filter and said centrifugal fan, said fan being operable to take in air from said air inlet and cause oil-borne mist in said air to adhere to said cylindrical filter so that the oil mist on the cylindrical filter is centrifugally forced outwardly;
- a main oil adsorbent layer provided on the inner surface of said main body concentrically arranged radially outwardly of said cylindrical filter and extending axially of said main body such that said oil forced centrifugally outwardly from said cylindrical filter passes to said main oil adsorbent layer and is adsorbed by said main oil adsorbent layer without splashing;
- and
- an oil outlet means adjacent the downstream end of said main oil adsorbent layer and in communication therewith, said adsorbed oil in said main oil adsorbent layer flowing toward said oil outlet means due to the air passing between said main oil adsorbent layer and said cylindrical filter and due to the capillarity of said main adsorbent layer.
Apparatus for removing oil mist from an air stream comprising:
- a main body having an air inlet at one end thereof for the admission of a stream of oil mist-containing air and an outlet at the other end for the discharge of substantially oil free air;
- a cylindrical filter rotatably mounted within said main body;
- a centrifugal fan rotatably mounted within said main body coaxial with said filter so as to be rotatable therewith, said centrifugal fan being mounted radially inwardly of said filter;
- drive means for driving said filter and fan;
- a main oil adsorbent layer provided on the inner surface of said main body concentrically arranged radially outwardly of said filter and extending axially of said main body to a location adjacent to but upstream of said air outlet;
- an oil outlet adjacent the downstream end of said main oil adsorbent layer and in communication therewith for the discharge of oil centrifugally forced from said filter for the adsorption by said oil adsorbent layer and urged axially therethrough to the oil outlet;
- an annular space adjacent the said other end of said main body and communicating with said air outlet;
- and
- an annular mounting frame secured within said main body and within said annular space in said main body at the downstream end of said main oil adsorbent layer, an auxiliary oil adsorbent layer within said annular space positioned immediately downstream of said main oil adsorbent layer, said auxiliary oil adsorbent layer being fitted to said mounting frame, said mounting frame having a first plurality of circumferentially spaced openings therein for the passage of filtered air therethrough and through said auxiliary oil adsorbent layer to said air outlet, the lower portion of said mounting frame adjacent said main oil adsorbent layer and said auxiliary oil adsorption layer having a second plurality of openings serving as oil drain ports to permit the flow of oil from said main oil adsorbent layer to pass through said auxiliary oil adsorbent layer and thence to said oil outlet.
Dependencies are inferred from the claim text.