clearance volume

[′klir·əns ‚väl·yəm]

(mechanical engineering)

The volume remaining between piston and cylinder when the piston is at top dead center.

clearance volume

The space enclosed by the cylinder head and the piston when it at top dead center (TDC) in a reciprocating engine. This is the volume of the combustion chamber.

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References in periodicals archive ?

Taking into account technological possibilities and economic demands we have developed experimental engine with automatic mechanism with two-piece connecting rod (three-connecting rod) for adjusting the clearance volume, Figure 2 [3].

Determination of Combustion Process Model Parameters in Diesel Engine with Variable Compression Ratio

One way of returning to incylinder compression work levels with split-cycle engines is to employ a switchable clearance volume between adjacent compressor and expander cylinders.

Compression solution

Uniflow engines are preferred for efficiency, although work is underway at present with very low clearance volume counter-flow engines.

SACA: steam makes sense

We know that the full cylinder volume of an IC engine is divided into two parts that is clearance volume and swept volume.

Comparison of performance and combustion parameters and emissions on a variable compression ratio diesel engine fueled with CsME

On the abscissa, the clearance volume, cylinder volume, and total balance volume are drawn.

Admission (economizer) port optimization of a Voorhees modified reciprocating C[O.sub.2] compressor

The fluid remaining in the clearance volume undergoes again an isentropic process until state D is reached, where the pressure differential at the inlet causes the suction valves to open.

C.F.D. in reciprocating compressor's valves

While originally the prechamber volume was about 19 percent of the clearance volume, when testing showed problems, a smaller prechamber with 9.5 percent of the clearance volume was used.

Design promises diesel efficiency from natural gas engines. (Technology)

An electronic controller, based on a simple and inexpensive Triac circuit, can vary the stroke to create a zero clearance volume. The plus side is a compressor that is 20-40% higher in efficiency over existing designs.

LG Electronics

* Clearance and Collateral Management--Both increases primarily reflect growth in collateral management, higher clearance volumes and net interest revenue.