before bottom center

The position of the piston in the cylinder of a reciprocating engine as the piston is moving downward, just before the bottom of its stroke, with the crankshaft turning in the direction of normal rotation.
Beaufort scale.
Position of the piston in the cylinder at before bottom center position. When the piston reaches bottom dead center, the position and the crank throw are in line.

Aviation dictionary. 2014.

Look at other dictionaries:

  • before bottom dead center — (BBDC) As the crankshaft rotates, it brings the piston down to a place just before it reaches bottom dead center …   Dictionary of automotive terms

  • center — To place something in a central place in relation to other items. Also see after bottom dead center after top dead center before bottom dead center before top dead center before upper dead center bottom dead center dead center diagnostic center …   Dictionary of automotive terms

  • bottom dead center — (BDC) The lowest point of the piston and connecting rod travel in a cylinder. In a horizontally opposed engine, it is sometimes called the outer dead center. Opposite to top dead center. Also see after bottom dead center before bottom dead center …   Dictionary of automotive terms

  • Center for Sustainable Global Enterprise — [http://www.johnson.cornell.edu/sge/ The Center for Sustainable Global Enterprise] (CSGE) is one of [http://www.johnson.cornell.edu/research/ two centers of research, learning, and practice] in the S.C. Johnson Graduate School of Management at… …   Wikipedia

  • Bottom bracket — A square taper cartridge bottom bracket. The bottom bracket on a bicycle connects the crankset to the bicycle and allows the crankset to rotate freely. It contains a spindle that the crankset attaches to, and the bearings that allow the spindle… …   Wikipedia

  • dead center — The point at which the piston reaches its uppermost or lowermost position in the cylinder the rod crankjournal would be at 11 o clock UDC or 6 o clock LDC. Also see after bottom dead center after top dead center before bottom dead center before… …   Dictionary of automotive terms

  • Del Amo Fashion Center — Location Torrance, California Opening date 1961/1975 Developer Guilford Glazer Management Simon Property Group Owner JPMorgan Fleming Funds (50%), Simon Prop …   Wikipedia

  • Harold Washington Cultural Center — Infobox Theatre name = Harold Washington Cultural Center caption = address = 4701 S. Martin Luther King Drive city = Chicago, Illinois 60615 country = USA designation = latitude = longitude = architect = owner = capacity = 1000 type = opened =… …   Wikipedia

  • 7 World Trade Center — Infobox Skyscraper building name=7 World Trade Center The new 7 World Trade Center (view from southeast) construction period=2002–2006 use=Office location=250 Greenwich Street New York City, New York, United States roof=741 ft (226 m) floor count …   Wikipedia

  • Controlled demolition hypothesis for the collapse of the World Trade Center — The controlled demolition hypothesis is a 9/11 conspiracy theory that claims the complete structural failure of the World Trade Center towers was not caused by the plane crash damage that occurred as part of the September 11, 2001 attacks, nor by …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.