Scavenging

Scavenging
Scavenging Scav"eng*ing, p. pr. & vb. n. of {Scavenge}. Hence, n. (Internal-combustion Engines) Act or process of expelling the exhaust gases from the cylinder by some special means, as, in many four-cycle engines, by utilizing the momentum of the exhaust gases in a long exhaust pipe. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • scavenging — The removal of the exhaust gases from the cylinder by using the momentum of the exhaust gases in a long exhaust pipe or by taking advantage of the pressure waves set up in the exhaust pipe by the discharge of the gases. See backflow scavenging… …   Dictionary of automotive terms

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  • scavenging — adjective also scavenge Etymology: scavenging from scavenging act of cleaning (from gerund of scavenge to clean; scavenge from scavenge to clean : of or relating to the process of removing used oil and waste gases from an engine cylinder a… …   Useful english dictionary

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  • Scavenging (automotive) — Uniflow scavenging For other uses, see Scavenger (disambiguation). 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… …   Wikipedia

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  • scavenging pump — An engine driven pump in the engine lubrication system that picks up oil after it has lubricated the engine and returns it to the oil reservoir. The output of a scavenging pump(s) is higher than the engine driven pump that is pumping in the oil… …   Aviation dictionary

  • scavenging jet — The jet of fresh charge supplied into the cylinder, the shape and direction of which determine the effectiveness of the scavenging process …   Dictionary of automotive terms

  • scavenging passage — The passage inside a two stroke engine that serves to scavenge the exhaust gas from the engine; in most cases it refers to the transfer passage, as the gas column supplied across the transfer port initiates the scavenging process …   Dictionary of automotive terms

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