4
Hydraulic Systems
Reservoir
Here is an example of a reservoir; one of the four
basic requirements to make a hydraulic system. This
particular reservoir is made of molded plastic and is
from a Greensmaster riding mower.
Pump
We can improve the efficiency and increase the
versatility of a basic circuit by adding some more
sophisticated components and changing the circuit
layout. By incorporating a gear pump in place of a
hand piston pump, we increase oil flow to the
cylinder which will increase the actuation rate of the
ram. The image to the right shows a cutaway view of
a three section gear pump. We can see the gear sets
for all three sections and the input (drive) shaft. A
gear pump is a positive displacement pump, meaning
that whenever the pump is turning the pump must
pump oil. If pump flow is totally blocked, sudden
failure of the pump or other component will occur.
As the gears in the pump rotate, suction is created at
the inlet port of the pump. The fluid is drawn in to the
pump and is carried in the spaces between the gear
teeth to the discharge port of the pump. At the
discharge side of the pump the gear teeth mesh
together and the oil is discharged from the pump.
Click on the 'Play' button in the animated illustration
to see the pump in operation.
Note that the pump creates flow. The pump, by itself,
does not create pressure. Pressure results only
when there is resistance to flow. You cannot have
pressure without flow (or potential flow).
Toro University Technical Training
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 09169SL |
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| Language | English |
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| Wikipedia's Page | Toro Company |
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Lawn and Garden readers have rated Toro Hydraulics Circuits Components Schematics Hydrostatic Drives Test Equipment 09169SL 3.0 out of 3.0 based on 1 product reviews. i am need information about circuit hydraulic of all machine