sleeve valve


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sleeve valve

[′slēv ‚valv]
(mechanical engineering)
An admission and exhaust valve on an internal-combustion engine consisting of one or two hollow sleeves that fit around the inside of the cylinder and move with the piston so that their openings align with the inlet and exhaust ports in the cylinder at proper stages in the cycle.
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The idea first appeared in the early years of the 20th century, but it was the Bristol engine company that made sleeve valves its own from the 1920s onwards, and thousands upon thousands of sleeve-valve Bristol radials hauled Bomber Command across Germany from 1939 onwards.
In operation, the rotary sleeve valve rotates within the valve body, literally wiping away trace residue and preventing the accumulation of soot and other substances.
The Inbal valve is much more resistant to severe surge pressures than any other deluge control valve on the market, including other rubber sleeve valves.
Working in a major hydraulic company some years ago I noticed a sudden increase in the output of the selectively assembled spool and sleeve valves.
Tenders are invited for Provide sleeve valves manufactured by pratt or bailey valve.
The plant also will accommodate seven, large-diameter pressure-control or sleeve valves that will release water back into the nearby San Diego Canal for distribution.