公开(公告)号：US10520101B2

公开(公告)日：2019-12-31

申请号：US15715779

申请日：2017-09-26

Applicant: FLUID HANDLING LLC.

Inventor： Mikhail Strongin ,  Mrinalini Litoriya ,  Mahesh Nair ,  Stanley Paul Evans ,  Florin Rosca

IPC: F16K15/03 ,  F16K31/12

Abstract: A contoured check valve disc features a pivot portion and a check valve portion. The check valve portion is attached to the pivot portion, and has two sides, a first side to respond to the fluid flow in a first direction and move the check valve portion away from a fluid opening to the one or more open positions depending on the fluid flow to allow the fluid to flow through the fluid opening, and a second and opposing side to respond to fluid flow in an opposite direction through the fluid opening and move the check valve portion towards the fluid opening to the closed position to seal the fluid opening and stop fluid flow. The check valve portion a near-sloped portion formed nearest to the pivot portion, having a near-sloped contoured surface curving away from the pivot point to a first point of inflection with a first curvature, and a far-sloped portion formed farthest from the pivot portion, having a far-sloped contoured surface curving away from the point of inflection towards a farthest point away from the pivot portion with a second curvature that is less curved or bent than the first curvature, the near-sloped portion and the far-sloped portion combining to form a combined surface having a contoured pressure/force distribution on the first side to respond to the fluid flow and move the check valve portion away from the fluid opening.

公开(公告)号：US10443880B2

公开(公告)日：2019-10-15

申请号：US15821084

申请日：2017-11-22

Applicant: FLUID HANDLING LLC.

Inventor： Stanley Paul Evans ,  Mrinalini Litoriya ,  Mahesh Nair ,  Florin Rosca ,  Deep Trambadia ,  Amitkumar Welekar

IPC: F24F11/70 ,  F16K37/00 ,  F16K5/06 ,  F16K15/18 ,  F16K15/03 ,  F16K27/02 ,  F24F11/89

Abstract: The present invention allows for a combination valve in a hydronic HVAC system that functions as an isolation valve; a check valve; and as a device for measuring fluid parameters, such as flow rate, pressure, and/or temperature, and also allows for the isolation valve to be configured in the field to be mounted either in a straight 180° or an angled 90° orientation, as well as at an intermediate angle. The new combination of isolation valve, check valve, with embedded sensors for flow rate, pressure, and/or temperature measurement provides a more compact product envelope that achieves space savings, e.g., by eliminating the need for separate components in an HVAC system, such as separate isolation valves, check valves, flow meters, pressure gages, and/or thermometers.