Patent ID: 11867310
Assignee: FISHER CONTROLS INTERNATIONAL LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. A method comprising:
determining a desired flow characteristic through a valve, the valve having a first plate including a first aperture pattern and a second plate including a second aperture pattern, the first aperture pattern including a spiral pattern such that apertures thereof increase in diameter along a radial direction of the first plate, the first plate at a first longitudinal position of the valve, the second plate at a second longitudinal position of the valve different from the first longitudinal position, wherein a quantity of the apertures increases along the radial direction; and
based on the desired flow characteristic, rotating the first plate or the second plate relative to the other of the first plate or the second plate to vary a degree of alignment between the first and second aperture patterns.