The outer slide of a double-action power press; it is usually operated by toggles or cams.



Related Terms

DECIBEL

Unit of sound pressure or power. Abbreviation is 'dB'. 1 Watt of sound power is equal to 120 dB.

FAN PERFORMANCE

A measure of fan operation in terms of volume, total pressures, static pressures, speed, power input, and mechanical and static efficiency, at a stated air density.

FAN PERFORMANCE CURVES

The graphical presentation of total pressure, static pressure, power input, and mechanical and static efficiency as ordinates and the range of volumes as absciassas, all at constant speed and air density.

RADIATION

All warm bodies emit light (electromagnetic radiation, mostly infrared). When this radiation is absorbed or emitted by a body, heat is transferred and termed 'heat transfer by radiation'. Such heat transfer requires a line of sight (view factor) and is proportional to the fourth power of the absolute temperature difference between bodies and the emissivity of the bodies.

THERMAL CONDUCTIVITY

The ability of a material to conduct heat, expressed as thermal power conducted per unit temperature and thickness. Metals and other thermal 'conductors' have a large thermal conductivity. Refractories and other thermal 'insulators' have a low thermal conductivity.

THERMO ACOUSTICAL EFFICIENCY

Equal to the sound power level/heat release. A value used to characterize the amount of combustion noise emitted from a flame. Defined as the ratio of the acoustical power emitted from the flame to the total heat release of the flame. Approximately equal to 1 X 10-6 for premixed and turbulent flames and equal to 1 X 10-9 for diffusion and laminar flames.

INTENSIFIER

A device which converts low pressure fluid power into higher pressure fluid power.

RESERVOIR

A container for storage of liquid in a fluid power system.

VISCOSITY INDEX IMPROVER

Additive that increase the viscosity of the fluid throughout its useful temperature range. Such additives are polymers that possess thickening power as a result of their high molecular weight and are necessary for formulation of multi-grade engine oils.

BUNKER C OIL

Residual fuel oil (no. 6 fuel oil) of high viscosity commonly used in marine and stationary steam power plants.

Related questions

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