Air
Cleaner Housings
Air Meter Housings
Back-up Lights
Carbon Canisters
Complete Lens Assemblies
Carburetors and Injectors
Control Valves and Regulators
Dipstick Tubes
EGR and Purge Valves
Exhaust Manifolds
Exhaust Piping
Filters
Fuel Level Sender Covers
Fuel and Vapor Line Assemblies
Fuel Pumps and Filters
Fuel Rails and Lines
Fuel Sending Units
Fuel Tank Floats
Gas Caps
Head Lamps
Injector Valve Seats
Intake Manifolds
Intake-to-Injectors
Mufflers
Manifolds
Oil Pans
Oil Pumps
Oxygen Sensors
Pipe Plugs
Pistons
Restrictors
Rollover Valves
Tail Lamps
Thermal Vacuum Switches
Throttle Bodies
Turbo-chargers
Valve Covers |
Case
Studies:
Specialty Bolt Hole Sizing
Testing Radiator Tubes for Leaks
Leak Testing Truck Lighting Fixtures
Specialty Bolt Hole Sizing
The customer requires that a specialty bolt be
drilled with cross holes for venting hydraulic
lines. If a hole is missing, occluded or wrongly
sized during the manufacturing process, the lines
may be incomplete or obstructed. TME was asked
to design an instrument and fixture system that
would confirm that a hole exists, is not occluded
and the dimensions meet specifications. The basic
pneumatic system of the TME Solution™ Leak
and Flow Tester coupled with customized software
to measure pressure decay and backpressure were
used to perform a flow test for occlusion on the
customer's part. Using the flexibility of the
TME Solution™ and the problem solving skills
of the TME engineering team, the customer's needs
were met and exceeded for speed, accuracy and
repeatability of the test system.
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Testing
Radiator Tubes for Leaks
The customer manufactures radiator tubes and needed
a leak test system. The test required an 80-psig
test pressure and a very fast cycle time in order
to keep up with automated production of 370 units
per hour. The TME Solution™ with four port
concurrent leak testing and Memory Reference Curve
technology was interfaced with an enclosed fixture
that would hold four tubes. The Memory Reference
Curve is a technology that allows the operator
to store the decay curve of an acceptable unit
in the instrument's memory. The
TME Solution™ then tests four tubes concurrently,
compares their decay curve with the reference
in its memory and identifies any parts that are
leaking with an audible and visual failure indicator.
Testing at 80 psig normally requires an extended
stabilization time, but using the Memory Reference
Curve all but eliminates this time, making possible
a five second cycle time. This cut the customer's
overall test time in half.
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Leak
Testing Truck Lighting Fixtures
The customer manufactures truck lighting units.
TME was asked to provide a leak test system that
would be accurate, repeatable and very fast in
order to help increase productivity. TME engineers
developed a system including a fixture designed
to seal all holes in the lighting unit and the
TME Solution™ leak test instrument with 0.0001-psi
resolution. The leak test was performed at a very
low pressure. The pressure decay indicating a
leak was large enough that the very high resolution
of the TME Solution™ was able to detect it
in a matter of seconds. The combination of TME
engineering expertise and the 0.0001-psi resolution
of the test instrument enabled us to decrease
the customer's overall test time considerably,
significantly increasing his productivity.
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