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scavenge

 
(skăv'ənj) pronunciation

v., -enged, -eng·ing, -eng·es.

v.tr.
  1. To search through for salvageable material: scavenged the garbage cans for food scraps.
  2. To collect and remove refuse from: The streets are periodically scavenged.
  3. To collect (salvageable material) by searching.
    1. To expel (exhaust gases) from a cylinder of an internal-combustion engine.
    2. To expel exhaust gases from (such a cylinder).
  4. Metallurgy. To clean (molten metal) by chemically removing impurities.
v.intr.
  1. To search through refuse for useful material.
  2. To feed on dead or decaying matter.

[Back-formation from SCAVENGER.]


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Of anesthetic. See anesthetic scavenging.

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Wikipedia on Answers.com:

Scavenging (automotive)

Top
Uniflow scavenging

In automotive usage, scavenging is the process of pushing exhausted gas-charge out of the cylinder and drawing in a fresh draught of air ready for the next cycle.

This process is essential in having a smooth-running internal combustion engine. Modifying the exhaust system, (i.e. modifying the exhaust gas velocity by changing exhaust tube diameters) can detract from the "ideal" scavenging effects, and reduce fuel efficiency and power if not properly planned out and executed.

To increase scavenging potential, the entire path from intake to exhaust (i.e. all powertrain parts) to tailpipe must be tuned in sync with each other. This will ensure that the air flow is never interrupted. The acceleration and deceleration of this exhaust gas is what will hinder the scavenging potential.

For example, fast flowing heads and a tunnel ram intake combined with a badly planned camshaft and exhaust system will cause the air to "slow down" and "speed up" throughout its journey, thus reducing its scavenging potential. So, to increase scavenging potential, the air must maintain a positive linear acceleration curve.

There are three types of scavenging on the basis of the flow of air:

  1. Direct or cross scavenging
  2. Loop scavenging, using Schnuerle porting
  3. Uniflow scavenging

See also


Translations:

Scavenge

Top

Dansk (Danish)
v. tr. - rense, skylle
v. intr. - rode i affald

Nederlands (Dutch)
afval doorzoeken, aas eten, afval

Français (French)
v. tr. - (lit) récupérer, (fig) mendier
v. intr. - faire/fouiller les poubelles

Deutsch (German)
v. - durchstöbern, reinigen, sich von Aas ernähren

Ελληνική (Greek)
v. - ανακυκλώνω απορρίμματα, τρέφομαι με θνησιμαία
n. - ανακύκλωση

Italiano (Italian)
spazzare, scovare, cercare tra i rifiuti, ricerca

Português (Portuguese)
v. - varrer

Русский (Russian)
убирать мусор, чистить, рыться в отбросах, работать мусорщиком, питаться падалью или отбросами, использовать отбросы производства

Español (Spanish)
v. tr. - limpiar, barrer (calles), recoger (la basura)
v. intr. - hacer de basurero, de barrendero, (mec) expulsarse de gases quemados

Svenska (Swedish)
v. - rengöra, spola, sopa, rensa, hålla rent, rota i avfall
n. - rengöring, spolning, sopning

中文(简体)(Chinese (Simplified))
搜寻有用之物, 清除污物

中文(繁體)(Chinese (Traditional))
v. tr. - 搜尋有用之物
v. intr. - 清除汙物

한국어 (Korean)
v. tr. - 청소하다, (내연 기관의 기통에서) 소기하다
v. intr. - 청소부로 일하다, 화학적으로 제거하다

日本語 (Japanese)
v. - 掃除する, あさる, ごみの中からあさる

العربيه (Arabic)
‏(فعل) يبحث عن طعام, يكنس, ينظف (الاسم) تنظيف, كنس‏

עברית (Hebrew)
v. tr. - ‮סילק מוצרים לא-רצויים ממנוע בעירה פנימית‬
v. intr. - ‮חיטט באשפה, חיפש מזון, ניקה רחובות, ניזון מפגרים (חיה או עוף)‬


 
 
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American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
 Rhymes. Oxford University Press. © 2006, 2007 All rights reserved.  Read more
Bradford's Crossword Solver's Dictionary. Collins Bradford's Crossword Solver's Dictionary © Anne Bradford, 1986, 1993, 1997, 2000, 2003, 2005, 2008 HarperCollins Publishers All rights reserved.  Read more
Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Scavenging (automotive) Read more
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