Case Studies

Helping innovators address EHA demands

A tier-1 flight controls company was designing an innovative system for a new large commercial aircraft and required a hydraulic reservoir. EHA guidelines require that these reservoirs be 100% maintenance free.

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Innovation that goes beyond

Our customer was developing a new aircraft, which required a duct with a flexible connection. The incumbent design used a non-metal flexible seal which suffered significant performance degradations under high operating temperatures and required frequent replacement.

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Turbine seal in high-temp, high-vibration application

Traditional elastomer-based seals could not be used by our customer, a large manufacturer of gas turbines, due to their inability to withstand the high temperature environment.

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Pushing the boundaries of conventional engines

Our customer, a large commercial airframer, challenged themselves to produce a next-generation aircraft concept that would deliver significantly lower total life cycle costs—including dramatically reduced-maintenance requirements.

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No pre-existing solution for >650° temperatures

Our customer—a large gas turbine manufacturer—required an automatic thermal valve that would actuate at temperatures exceeding 650°F. At the time, no existing thermal actuator technology could meet this specification.

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Deep-sea conditions exceeded old seals’ capabilities

As our customer’s rigs ventured further off shore, their equipment experienced significantly higher differential pressures. One of the critical components, gas lift valves, were facing differential pressures in the 10,000 psig range.

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Innovative approach replaces piston with bellows

The U.S. Air Force KC-135 Aerial Refueling Tanker was experiencing severe aircraft downtime due to a highly unreliable piston accumulator used on the fuel boom.

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High precision/low cost sampling pump

Our customer—a large medical equipment manufacturer—required a new design for a precision metering pump for blood analysis sampling. The component was to be used in a disposable cartridge, so relative cost was an issue.

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Fewer parts, Zero-maintenance, Extreme conditions

Our customer was looking to improve the performance of their wafer handling system. Their historical approach involved the use of an air cylinder and a welded metal bellows to seal the penetration into the vacuum chamber.

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Business jet customer needs speed, price, and reliability

Our customer, an agile and prestigious business jet manufacturer, was developing a new aircraft for a premium market segment. They were seeking a suite of lightweight hydraulic accumulators that would provide the lowest total life cycle cost possible.

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Fire prevention in the air

A large commercial aircraft engine manufacturer needed a fire safety relief valve to automatically drain hydraulic fluid from their gearbox should the temperature in the gearbox approach the flash point of the hydraulic fluid.

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Extended service life from one year to ten

The legacy design for a thermal actuator relied upon an elastomer-encased wax medium. Unfortunately operating temperature extremes rapidly degraded the elastomer, resulting in a very high rate of failure for this device.

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