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Three Major Sub
Assemblies |
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Principle utilized
is electrically controlled pneumatic over hydraulic? |
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Gas is pneumatic,
grease is hydraulic. stick/slip principle. |
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1. Electrical &
Control Systems |
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> |
Same principle as automotive air
bag |
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Use electrical power to decompose
electrolyte to generate nitrogen gas
.
|
| > |
Generates gas as for recharging car
battery (but produces inert gas) |
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Reverse polarity release of gas phase of
electrolyte
|
| > |
Fixed time unit |
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Single fixed mA resistance power
supply |
| > |
Variable time
unit |
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IC controlled variable mA resistance
power supply |
| > |
Power supply is 2 x mA Alkaline
batteries
|
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Maximum normal run?requirement with 40%
reserve capacity |
| > |
Purge function cannot be left
ON |
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Spring button on fixed time, auto
disengage on Variable time unit |
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DO NOT OVER-RIDE PURGE
FUNCTION |
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2. Gas Generating
Cell |
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> |
Linear gas production
rate |
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Volume of
gas produced is direct equation of current introduced into
electrolyte
|
| > |
Pressure generated is result of
resistance |
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Pressure
equals resistance to flow
|
| > |
No flow = pressure |
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No resistance = no
pressure |
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3. Lubricant
Chamber |
|
> |
Movement occurs when pressure overcome
piston to body resistance |
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Back-pressure must be added to piston to body
resistance
|
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Pressure
(resistance to flow) will slow down designed dispensing rate
|
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Ambient oC
will affect design dispensing rate
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|
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Back Pressure
Effect |
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| The time to build pressure will slow down
the rated dispensing time of the unit until the required
pressure is developed. From the time that required pressure is developed, the
unit will then dispense at the normal rate.
For
example, let us say that you have fitted a remote mounting
line. The hose presents a pressure
resistance of 20 PSI. It takes 1 week to build up enough pressure to overcome
the line resistance.
The time to unit empty is
now:
3 months (normal time) plus 1 week (line
resistance), = 13 weeks. |
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|
|
Ambient Temperature
Effect |
|
| Ambient |
OR1 |
GR2 |
RD3 |
BL6 |
YW12 |
| Temp
°C |
Months |
Months |
Months |
Months |
Months |
| 80 |
0.53 |
1.06 |
1.59 |
3.19 |
6.38 |
| 70 |
0.59 |
1.18 |
1.77 |
3.54 |
7.09 |
| 60 |
0.66 |
1.31 |
1.97 |
3.94 |
7.87 |
| 50 |
0.73 |
1.46 |
2.19 |
4.37 |
8.75 |
| 40 |
0.81 |
1.62 |
2.43 |
4.86 |
9.72 |
| 30 |
0.90 |
1.80 |
2.70 |
5.40 |
10.80 |
| 20 |
1 |
2 |
3 |
6 |
12 |
| 10 |
1.10 |
2.20 |
3.30 |
6.60 |
13.20 |
| 0 |
1.21 |
2.42 |
3.63 |
7.26 |
14.52 |
| -10 |
1.33 |
2.66 |
3.99 |
7.99 |
15.97 |
| -20 |
1.46 |
2.93 |
4.39 |
8.18 |
17.57 |
|
