knocking


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knocking

A loud knocking or banging noise made inside a reciprocating engine cylinder during the combustion stroke caused by shock waves produced by the detonating engine. Knocking is an explosion rather than a smooth burning process. It is caused by burning either the wrong fuel or the incorrect amount of fuel. The fuel-air mixture, in this case, ahead of the flame front gets so hot that it explodes and produces a rattling noise, or knocking.
References in periodicals archive ?
The knock control strategy, instead, can only require negative SA corrections, if the knocking level is higher than the threshold.
The acquisition of DSI adds new TV shows to Knocking's queue, with more opportunities for diverse product integration.
'We know that we will not get anything from simply knocking on doors, so we talk to them instead.
"If knocking on wood makes people feel less anxious about a bad event, and feeling less anxious about a bad event leads people to behave differently, it is possible that knocking on wood could influence outcomes," Risen says.
If you haven't heard the knocking, yet, but your Block 1 LRAS3 has a serial number of 1000 or higher, chances are good you will hear it soon.
Craig Hemmens, I Hear You Knocking: The Supreme Court Revisits the Knock and Announce Rule, 66 UMKC L.
Knocking and announcing prior to entry merely provided the owner with the chance to comply before damage was done to his dwelling.
We also squeezed in a manny-pad session where Colt and J Wray got busy knocking out at least half of the manny tricks in one go.
A male club-winged manakin in Ecuador creates a series of seductive "tick tick tings" by knocking together his wings over his back, says Kimberly Bostwick of Cornell University.
Written by the managing partner and co-owner of an international Human Resource Consulting Firm specializing in Executive Recruitment, How Hard Are You Knocking? The Job Seeker's Guide To Opening Career Doors is a straightforward guide to selling oneself and one's talents in a globalized economy riddled with corporate downsizing and outsourcing.
The ability to knock down genes either stably (that is, creating heritable phenotypes through germline transmission of permanently silenced genes) or transiently ,as opposed to knocking them out altogether) has some important advantages in the production of animal models and in vitro cell lines.