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• water jacket
  water jacket

  noun

  a water-filled casing or compartment used to water-cool something, as an engine or machine gun.
• water-jacket
  water-jacket

  verb (used with object)

  to surround or fit with a water jacket.

water jacket

¹ American  

noun

1. a water-filled casing or compartment used to water-cool something, as an engine or machine gun.

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water-jacket ² American  

[waw-ter-jak-it, wot-er-] / ˈwɔ tərˌdʒæk ɪt, ˈwɒt ər- /

verb (used with object)

1. to surround or fit with a water jacket.

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water jacket British  

noun

1. a water-filled envelope or container surrounding a machine, engine, or part for cooling purposes, esp the casing around the cylinder block of a pump or internal-combustion engine Compare air jacket

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Etymology

Origin of water jacket¹

First recorded in 1865–70

Origin of water-jacket²

First recorded in 1875–80

Example Sentences

See Examples For:

water jacket water-jacket

It has a feeder which pushes coal in at one end and ashes out at the other, a water jacket, a small pump which circulates the heated water rapidly to radiators.

From Time Magazine Archive

Although it is water-cooled, it weighs, water jacket and all, only 28 pounds.

From How To Write Special Feature Articles A Handbook for Reporters, Correspondents and Free-Lance Writers Who Desire to Contribute to Popular Magazines and Magazine Sections of Newspapers by Willard Grosvenor Bleyer

So much confidence seems to be placed in the isothermal features of this machine that usually no water jacket or spray pump is applied.

From Scientific American Supplement, No. 799, April 25, 1891 by Various

The Kodiopticon has a water jacket for protection of the slides from heat, and the price includes a strong wooden case, which, by reversing the top, serves as a permanent stand for the outfit.

From Kodaks and Kodak Supplies 1914 by Canadian Kodak Company

The lower part of the furnace is often furnished with a water jacket.

From An Elementary Study of Chemistry by William McPherson

Figure 8.—Development engine No. 3, 1904-1906, showing auxiliary exhaust port, separate one-piece water-jacket block.

From The Wright Brothers' Engines and Their Design by Leonard S. Hobbs

In other words the cylinder should be kept hot, but not burning, as previously explained in the paragraph in which the water-jacket is discussed.

From Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines by R. E. Mathot

It has also been proposed by others to water-jacket the electrode chamber, and also to keep it cool by placing it in close proximity to the relatively cool joints of a thermopile.

From Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. by Kempster Miller

From many experiments made in Europe and in the United States, it has been conclusively proved that excessive cylinder cooling by the water-jacket results in a marked loss of efficiency.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

To the right is the fire-box, surrounded on all sides by a water-jacket in direct communication with the barrel of the boiler.

From How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use by Archibald Williams