Electronic expansion device

This device is a type of valve that precisely controls how much fluid flows through it. It has a main body with an entry and an exit, and inside, the fluid passes through a small opening and a specific path. An electric motor moves a rod-like part to block or unblock this path, adjusting the fluid flow. The claims describe a version where the main body has flat circular ends and the motor-driven parts extend from its curved side.

Why it matters: The cost and precision of small electric motors and microcontrollers have improved significantly since 2016, making fine-tuned electronic flow control more economical and reliable for energy-efficient systems.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateElectric motor, custom fluid body, seals

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