Aviation Dictionary
مجرایی در سیلندر ترمز که آن را به مخزن روغن وصل کرده و زمانی که فشار بیش از حد بالا رود آنرا خنثی میکند
A compensating port connects the reservoir to the cylinder, ahead of the primary cup. With the brakes off, this port connects the brake system with the reservoir. It compensate for changes in volume of the fluid due to heat or wear. The rod from the brake pedal pushes on the piston.