Air chamber

a chamber containing air, as in a pump, lifeboat, or organic body.
Also called air cushion. a compartment of a hydraulic system containing air that by its elasticity equalizes the pressure and flow of liquid within the system.
Historical Examples

If the contents appear cloudy and the air chamber larger, the egg is not fresh.
Detection of the Common Food Adulterants Edwin M. Bruce

On the down stroke of the piston, water is forced into the air chamber.
Physics Willis Eugene Tower

The eggs require cooling to develop the air chamber properly, and as a rule the hen knows best.
Outdoor Sports and Games Claude H. Miller

There is an air chamber between these discs through the center of which air is forced by the syringe bulb.
Arteriosclerosis and Hypertension: Louis Marshall Warfield

He went into breakfast with it, and sat wonderfully straight, and carried it safely into the hall and down into the air chamber.
History of Morgan’s Cavalry Basil W. Duke

The air chamber was heated by a number of hot-water pipes which were connected with a copper boiler.
Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 3 Various

If this pump is properly connected with an air chamber, as explained later, it will send a small stream of water some ten feet.
Manual Training Toys for the Boy’s Workshop Harris W. Moore

Above the warm-water tank is an air chamber (AC) to serve as a non-conducting medium and to prevent therefore undue loss of heat.
Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 3 Various

One of the trunnions is hollow and a pipe P connects it with an air chamber A, which forms a false bottom to the converter.
An Elementary Study of Chemistry William McPherson

The air chamber surrounds the metering valve, and there is a mixing chamber above.
Aviation Engines Victor Wilfred Pag


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  • Air coach

    (def 4).

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