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A motor with operating characteristics between those of the constant-speed (shunt-wound) and the variable-speed (series-wound) types.



Related Terms

POSTPURGE

A period after the fuel valves close during which the burner motor or fan continues to run, to supply air to the combustion chamber.

MOTOR DRIVEN RESET SAFETY SHUTOFF VALVE

An electrically operated safety shut-off valve designed to automatically shut off fuel flow upon being de-energized. The valve is opened and reset automatically by integral motor device only.

AIRLOCK

A separation area used to maintain adjacent areas at a pressure differential. For example, the airlock to an electric motor room on a gas carrier is used to maintain pressure segregation between a gas-dangerous zone on the open deck and the gas-safe motor room which is pressurized.

DEEPWELL PUMP

A type of centrifugal cargo pump commonly found on gas carriers. The prime mover is usually an electric or hydraulic motor. The motor is usually mounted on top of the cargo tank and drives, via a long transmission shaft, through a double seal arrangement, the pump assembly located in the bottom of the tank. The cargo discharge pipeline surrounds the drive shaft and the shaft bearings are cooled and lubricated by the liquid being pumped.

AUTOMATIC TRANSMISSION FLUID

ATF. Fluid for automatic, hydraulic transmissions in motor vehicles.

ATF

Fluid for automatic, hydraulic transmissions in motor vehicles.

CASE DRAIN FILTER

A filter located in a line conducting fluid from a pump or motor housing to reservoir.

GASOHOL

A blend of 10% anhydrous ethanol (ethyl alcohol) and 90% gasoline, by volume. Used as a motor fuel.

ACCESSIBLE HERMETIC

An assembly of motor and compressor, inside a single bolted housing unit.

M.V.

Motor Vessel or Diesel Engine driven ship

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