blowback


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blowback

[′blō‚bak]
(chemical engineering)
A continuous stream of liquid or gas bled through air lines from instruments and to the process line being monitored; prevents process fluid from backing up and contacting the instrument.
Reverse flow of fluid through a filter medium to remove caked solids. Also known as backwash.
(graphic arts)
To enlarge, or make an enlargement of, an image.
(mechanical engineering)

blowback

A characteristic of a safety valve; the difference between the pressure at which it opens and the pressure at which it closes automatically, after the excess pressure has been released.
References in periodicals archive ?
Although AEGs do not have blowback mechanisms at this time, they are still hugely popular with airsoft enthusiasts.
32 autos rank among the best build pistols in all history, for the heyday of the baby blowback was the first three decades of this century, and while junkers did indeed flourish during that period before enlightened consumerism, so did Old World notions of fit and finish, at least among the major manufacturers.
com ACTION TYPE: Blowback Semiauto CALIBER: 9mm CAPACITY: 8+1 BARREL LENGTH: 3.
We could also dispense with "retarded blowback," used when describing such pistols as the Savage 1908 and the Czech Vz24.
22 rimfire extractors are larger than the one on the UMP45, but, as a direct blowback SMG, clearly the blowback of the bolt also blows the empty case from the chamber with the case head firmly positioned to hit the ejector.
Also provided is a wide range of filtration devices, using various filter media and pulse-jet blowback for maintenance-free filter cleaning.
There are also 12 sq ft of filter bags to separate fine powders from the conveying air stream, and automatic blowback filter cleaning after each loading cycle.
The typical, semi-automatic, rimfire action is based on a straight blowback design in which pressure is handled by the mass of the bolt or slide and the tension of the operating springs.
It also fans fears Britain could be plunged into another uncertain war ending with a bloody blowback.
In Lincoln's day, critics dubbed him "the National Joker"; yet Lincoln masterfully fashioned a folksy, fallible persona that enabled him to use satire as a weapon without harmful blowback.
Since my tale of espionage came out, Blow Back or Blowback has been used as a title for at least nine non-fiction books, eight thrillers, a romance, a video game and an 18-rated film featuring Mario Van Peebles.
Another significant difference with the JR Carbine is that it relies on a straight blowback operation (like a submachine gun) rather than direct-impingement (Dl) or piston operation, as is typical of the AR.