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Hydraulics
Hydraulics and their components
23
Engineering
Undergraduate 3
12/06/2009

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Cards

Term
Pascal’s Law
Definition
The Pressure exerted on a confined fluid is transmitted in all directions and acts at right angles to the containing surfaces.
Term
Work
Definition
This is the measure of how much energy is expended by the movement taken place
Term
Mass
Definition
a single measurement based solely on the matter in contains
Term
Weight
Definition
a measurement on how much force and objects mass creates
Term
Viscosity decreases with
&
Higher the Number
Definition
increasing Temperature
&
the more it can withstand to viscosity breakdown
Term
Laminar
Definition
Flow in a pipe is small layers of fluid moving in respect to each other
Term
Power
Definition
work/time
Term
Three main segments of a Hydraulic system
Definition
Power supply, Control, Output
Term
Two types of hydraulic actuators
Definition
Linear and rotary
Term
The actuator is converting fluid power back into
Definition
Mechanical Power
Term
Cylinder consists of
Definition
Barrel, End caps, Piston & Rod
Term
Resistance to motion means?
Definition
Build up of pressure in the System
Term
Types of pumps
Definition
Piston, Vane, Gear.
Term
Purpose of a pump is to create what not what?
Definition
Flow not Pressure
Term
Cavitation
Definition
happens when the fluids pressure is so low that the fluid will vaporize or boil.
Term
Aeration
Definition
Bubbles come from outside air leaking into the system
Term
Pump selection, consider
Definition
Weight
Overall dimensions
Mounting setup
Port size
Drive shaft size
Term
Beta Ratio
Definition
Number of particles upstream from the filter that are larger than the filter’s micron rating over
Number of particles downstream from the filter that are larger than the filter’s micron rating
Term
Filter Breather
Definition
Prevention of Airborn Particulates
Filters air as it enters the resevoir
Reservoir must be vented to allow fluid to enter and exit
Term
Pressure Filter
Definition
Filters placed to protect critical components from silting and sticking
Must be able to withstand filter pressure.
Term
Return Filter
Definition
Maintain total fluid cleanliness
Term
Heat exchangers
Definition
Air cooled much like a radiator on a car
Water cooled
Term
Off-line Kidney Loop
Definition
Fixed displacement pump to simply move fluid through a filter
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