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  Encyclopedia of Keywords > Encyclopedia of Finance. > Technology > Engines > Piston > Tdc   Michael Charnine

Keywords and Sections
MATTER
COMPLETE
RELATION
EXPANSION
DIFFERENCE
TEMPERATURE
MEASURE
BLOCK
BENEFITS
TRANSFER
EARLIER
PRESENT INVENTION
GASSES
ZERO DEGREES
TDC SIGNAL
REACHING TDC
PISTON APPROACHES TDC
CORRECT TDC
DIAL GAUGE
UPWARD TRAVEL
TDC INDICATOR
MINIMUM LIFT SETTING
COMPANION CYLINDERS
TDC MARK
SIGNAL TDC
MAXIMUM CYLINDER
TDC ACT
TDC REF
BOTTOM DEAD CENTER
NUMBER
MEANS
CROSSOVER
VACUUM
GASES
MIXTURE
MOVING
CLOSER
READINGS
PERFORMANCE
SIDE
TOP
CLOSING
CLOSE
DETONATION
BACK
VOLUME
Review of Short Phrases and Links

    This Review contains major "Tdc"- related terms, short phrases and links grouped together in the form of Encyclopedia article. Please click on Move Up to move good phrases up.

Definitions Submit/More Info Add a definition

  1. TDC is the piston's position when it has reached the top of the cylinder, and the center line of the connecting rod is parallel to the cylinder walls. (Web site)
  2. TDC is defined as the top dead center position of a piston in a cylinder, which thus defines the minimum cylinder volume and maximum cylinder pressure. (Web site) Move Up
  3. TDC is inviting designers, art directors, educators, students, and all others interested in design and typography issues. Move Up
  4. After TDC, the intake valve chases the piston as it opens--another potential danger zone. Move Up
  5. At or near TDC, the air-fuel mixture in the main chamber is ignited. (Web site) Move Up

Matter Submit/More Info Add phrase and link

  1. From now on, no matter what the RPM, power setting, or altitude the engine spark timing will remain at 25 degrees before TDC. (Web site)

Complete Move Up Add phrase and link

  1. At TDC the second crankshaft rotation is complete.

Relation Move Up Add phrase and link

  1. It is the intake lobe�s center (at its� highest point) position in relation to the position of the piston at TDC of the intake stroke. (Web site)
  2. At top dead center (TDC), the single sleeve valve rotates in relation to the piston. Move Up

Expansion Move Up Add phrase and link

  1. By the time the piston crosses TDC, we have some pretty serious burn rate and gas expansion happening here. (Web site)

Difference Move Up Add phrase and link

  1. The difference in angle between LPP and TDC is defined as Heat Loss Offset (HLO). HLO can be calculated using a theoretical model of the engine. (Web site)

Temperature Move Up Add phrase and link

  1. Firstly, knock is affected by the gas temperature at TDC of the compression stroke.

Measure Move Up Add phrase and link

  1. Most degree wheels allow you to measure in degrees from TDC (the zero mark) in both directions. (Web site)

Block Move Up Add phrase and link

  1. Piston to Deck Volume On a typical engine the piston is not level with the block at TDC. The area above or below the desk of the block must be accounted for. (Web site)

Benefits Move Up Add phrase and link

  1. Exhaust Valve Closing Late Keeping the exhaust valve open after TDC can also have benefits. (Web site)

Transfer Move Up Add phrase and link

  1. This creates a violent jump in cylinder pressure when the piston is nearly stationary near TDC and cannot effectively transfer the load to the crankshaft.
  2. During this compression, and before TDC, a valving mechanism is opened to allow transfer the compressed air to the combustion chamber. (Web site) Move Up

Earlier Move Up Add phrase and link

  1. As indicated earlier, the INTAKE event starts before TDC, or at point A in view C of figure 2-6. (Web site)
  2. By getting the flame process started earlier, the �mass fraction burned� at any given crank angle position away from TDC is improved. (Web site) Move Up

Present Invention Move Up Add phrase and link

  1. In one embodiment according to the present invention, the SE-DPCE cycle begins as compression piston passes through its TDC and the intake valve 10 opens. (Web site)

Gasses Move Up Add phrase and link

  1. This continues as the piston travels up to TDC, pumping the spent gasses out of the cylinder.

Zero Degrees Move Up Add phrase and link

  1. This setting is usually zero degrees of TDC. (Web site)

Tdc Signal Move Up Add phrase and link

  1. In the present embodiment in which the engine 2 is of a four-cylinder type, the TDC signal is delivered whenever the crankshaft rotates through 180 degrees. (Web site)

Reaching Tdc Move Up Add phrase and link

  1. It doesn't matter as long as it keeps the piston from reaching TDC. (Web site)
  2. Just before reaching TDC, the intake valve opens. (Web site) Move Up

Piston Approaches Tdc Move Up Add phrase and link

  1. As long as the octane rating is high enough, the gas continues a controlled burn and associated linear expansion rate as the piston approaches TDC. (Web site)

Correct Tdc Move Up Add phrase and link

  1. This is not the correct TDC. Rotate the motor a little further and you will notice the intake valve open up. (Web site)

Dial Gauge Move Up Add phrase and link

  1. You need to accurately determine TDC using the dial gauge and accurately mark TDC on the crankshaft pulley. (Web site)

Upward Travel Move Up Add phrase and link

  1. The piston continues its upward travel through top dead center (TDC) while fresh air enters and exhaust gasses leave. (Web site)

Tdc Indicator Move Up Add phrase and link

  1. The TDC Indicator allows a technician to accurately set any position to top dead center. (Web site)
  2. Turn engine until TDC indicator on timing gauge (down near the crankshaft pulley) is around zero degrees. Move Up

Minimum Lift Setting Move Up Add phrase and link

  1. The cam phasing is set for both exhaust valve closes and intake valve opens at top dead center (TDC) at the minimum lift setting. (Web site)
  2. The setting is based on minimum lift, i.e., exhaust valve closes and intake valve opens at TDC at the minimum lift setting. (Web site) Move Up

Companion Cylinders Move Up Add phrase and link

  1. In a four-stroke engine, companion cylinders are those that reach TDC and BDC at the same time, though they are in different phases of the four-stroke cycle.

Tdc Mark Move Up Add phrase and link

  1. And again, take the shortest path as you count up from the TDC mark to the pointer (it should be less than 180 degrees). (Web site)

Signal Tdc Move Up Add phrase and link

  1. This counter is fed with signal TDC and is therefore incremented at each impulse corresponding to the passing of a cylinder at the Top Dead Center. (Web site)

Maximum Cylinder Move Up Add phrase and link

  1. The key to getting max HP from a max nitrous engine is to shift the maximum cylinder pressure event progressively further after TDC. (Web site)

Tdc Act Move Up Add phrase and link

  1. Similarly, and in reference to FIG. 4, the shape of the correctly determined TDC act. (Web site)
  2. If these criterion are not met, the curve should be further shifted to find TDC act. (Web site) Move Up
  3. Accordingly, through the use of the present invention described in greater detail hereinafter, TDC act. (Web site) Move Up

Tdc Ref Move Up Add phrase and link

  1. Specifically, a point 56 represents the maximum of curve 40 occurring at approximately 50 degrees from TDC ref. (Web site)
  2. During engine operation, the crankshaft sensor 18 is signaled as the mark passes thereby indicating the TDC ref. (Web site) Move Up

Bottom Dead Center Move Up Add phrase and link

  1. This prevents boundary lubrication problems, as piston ring ridge wear at TDC and bottom dead center (BDC) does not occur.

Number Move Up Add phrase and link

  1. On the number 1 cyclinder it would fire at TDC and Again at the Exhaust stroke.

Means Move Up Add phrase and link

  1. This means that the intake valve reaches max lift 102.75 degrees after the piston has reached TDC. Repeat the process again for the exhaust valve. (Web site)

Crossover Move Up Add phrase and link

  1. One other thing, to locate TDC @ #1, watch #6 until it's at crossover (one rocker going up, the other going down at the same time). (Web site)

Vacuum Move Up Add phrase and link

  1. The intake valve opens before TDC in order to use the vacuum created by the exiting exhaust gases to start drawing the intake charge into the cylinder. (Web site)
  2. As the cam lobe for each bellow passes TDC you can see the bellows cloth react to the applied vacuum. (Web site) Move Up

Gases Move Up Add phrase and link

  1. As the piston moves closer to TDC, the gases compress and therefore the pressure and temperature increase. (Web site)

Mixture Move Up Add phrase and link

  1. Because fuel injection timing was near TDC, the volume of the mixture dispersed to a squish area was decreased. (Web site)

Moving Move Up Add phrase and link

  1. If the mixture is ignited to early, the piston is still moving up towards TDC as the pressure from the burning mixture builds. (Web site)

Closer Move Up Add phrase and link

  1. The result of this phenomenon is that when the cylinder is fired, the piston is closer to TDC than a conventional engine. (Web site)
  2. Count your degrees from either TDC or BDC (whichever is closer) and make a note of it. (Web site) Move Up
  3. The closer the peak pressure is to TDC, the higher that peak pressure is, resulting in a high knock probability. (Web site) Move Up

Readings Move Up Add phrase and link

  1. You will then split the difference in these readings and move the pointer this amount, making it the true TDC point. (Web site)

Performance Move Up Add phrase and link

  1. In performance applications, the goal is to set ignition timing such that peak cylinder pressure occurs at 16-18 degrees after top dead center (TDC). (Web site)

Side Move Up Add phrase and link

  1. Retighten the bolts, and rotate the engine again making sure that the readings on each side of TDC are equal degrees away from zero. (Web site)
  2. As when we located positive TDC, we are now going to take two crank degree measurements on either side of this point of maximum lift. (Web site) Move Up

Top Move Up Add phrase and link

  1. If the deck height was BELOW the top of the cylinder at TDC, leave the calculated answer as is (positive).
  2. On a four stroke, TDC will occur at the top of the compression stroke and the top of the exhaust stroke. (Web site) Move Up
  3. When the mark is at the top that is TDC or 0 degrees. Move Up

Closing Move Up Add phrase and link

  1. Exhaust event arc 70 indicates the exhaust valve-lift gap opening at about 68 degrees before BDC and closing at TDC or slightly beyond. (Web site)

Close Move Up Add phrase and link

  1. When the rotor is at or near the stub for the number one cylinder, the piston will be close to TDC on its compression cycle. (Web site)
  2. If the intake valves normally open at 10 degrees before top dead center (TDC) and close at 190 degrees after TDC, the total duration is 200 degrees. (Web site) Move Up

Detonation Move Up Add phrase and link

  1. If an engine is producing 30% of its power from nitrous, the maximum cylinder pressure will occur too close to TDC to avoid run away to detonation. (Web site)

Back Move Up Add phrase and link

  1. If one is in a different position than the other, you are not at TDC for that cylinder, so go back over the above steps and find out where you messed up. (Web site)
  2. The mark on the balancer should be back at the TDC mark. (Web site) Move Up

Volume Move Up Add phrase and link

  1. Because kinetics in the vicinity of the TDC of the "piston" and the "QT-blade" are diametrically opposed, both in volume and speed. (Web site)
  2. When the piston 30 is at top-dead-center (TDC), the volume of the combustion chamber 28 is at a minimum. (Web site) Move Up
  3. The volume to be compressed is the volume above the piston at TDC and is unity for ease of illustriative calculational purposes only. (Web site) Move Up

Categories Submit/More Info

  1. Encyclopedia of Finance. > Technology > Engines > Piston
  2. Top Dead Center Move Up
  3. Intake Valve Move Up
  4. Exhaust Valve Move Up
  5. Intake Stroke Move Up

Related Keywords

    * Air * Bdc * Combustion * Combustion Chamber * Compressed * Compression * Compression Ratio * Compression Stroke * Crank * Crankshaft * Crankshaft Degrees * Cylinder * Cylinders * Cylinder Volume * Degrees * Degree Wheel * Dial Indicator * End * Exhaust Gases * Exhaust Stroke * Exhaust Valve * Exhaust Valves * Exhaust Valve Closing * Fig * Fuel * Fuel Charge * Highest Position * Ignition * Ignition Timing * Intake * Intake Lobe * Intake Stroke * Intake Strokes * Intake Valve * Intake Valve Opening * Lifter * Lower * Overlap * Piston * Pistons * Piston 22 * Piston Moves * Piston Position * Piston Speed * Piston Tdc * Point * Pointer * Position * Ratio * Retard * Someone * Spark * Spark Plug * Start * Stroke * Tdc Position * Time * Timed * Timing * Top Dead Center * Top Dead Centre * Valve * Valves * Valve Adjustment * Valve Clearance * Valve Overlap * Wankel
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  Short phrases about "Tdc"
  Originally created: April 04, 2011.
  Links checked: March 31, 2013.
  Please send us comments and questions by this Online Form
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