Machine Power Flow Flashcards
A device that converts the fluid energy of the hydraulic system into mechanical energy using a hydraulic cylinder or motor
Actuator (hydraulic)
A current that periodically reverses its direction of flow
Alternating current (AC)
The surrounding or circulating temperature of a fluid or object
Ambient temperature
A mechanism for temporarily keeping one part in a certain position relative to that of another, released by application of force to one of the parts
Detent 
An electrical current that flows in only One Direction
Direct current (DC)
Mechanical device used for engaging and disengaging one rotating element from another rotating element, such as a shaft
Clutch
A machine that converts the energy of a fuel into mechanical energy or power to produce force and motion
Engine
A mechanical or hydraulic device used to control the speed of an engine
Governor
Operated by the pressure created by forcing water, oil, or another liquid through a comparatively narrow pipe or orifice
Hydraulic
A machine that converts electrical energy into mechanical energy
Motor
A scientific law stating that pressure at any one point in a closed static fluid system will be applied to all points in the system in every direction and will exert equal forces on equal areas; the basis of hydraulic theory
Pascal’s law
Operated by air or by the pressure or exhaustion of air.
Pneumatic
Transforms hydraulic working energy into rotary mechanical energy, which is applied to a resisting object by means of a shaft.
Pump (hydraulic)
An electromagnetic coil used to control a mechanical device such as a valve or relay contacts
Solenoid
Constriction due to a decrease in temperature
Thermal expansion
A device that uses fluid, usually oil, to transmit torque from one shaft to another
Torque converter (fluid coupler)
A power train device that transfers power directly from the engine to the axle without relying on a drive shaft
Transaxle
The main purpose of the power system is to…
convert power to work
The amount of air delivered to each of the engine’s cylinders in a Diesel engine is increased by the use of a(n)…
turbocharger
Diesel engine fuel is delivered under high pressure directly into the combustion cylinder by a …
fuel injection pump
Diesel fuel from a low-pressure pump is injected into a diesel engine cylinder by a….
cam-operated injector
When working on a coolant system, the operator should…
allow the system to cool before adding coolant
The _____ regulates the flow of the coolant through the engine, which controls the temperature of the engine.
thermostat
Which sentence best describes direct current (DC)?
Electric current that flows in only one direction
