US 12,486,906 B2
Ball valve with enhanced flow accuracy features
Benoy Kumar, San Diego, CA (US); and Albert J. Wu, San Diego, CA (US)
Assigned to Precision Engine Controls Corporation, San Diego, CA (US)
Filed by Precision Engine Controls Corporation, San Diego, CA (US)
Filed on Feb. 8, 2024, as Appl. No. 18/436,132.
Claims priority of provisional application 63/504,452, filed on May 26, 2023.
Prior Publication US 2024/0392881 A1, Nov. 28, 2024
Int. Cl. F16K 5/06 (2006.01); F16K 5/10 (2006.01)
CPC F16K 5/0605 (2013.01) [F16K 5/0647 (2013.01); F16K 5/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A valve comprising:
a housing having a first port and a second port;
a stem disposed and rotatable within the housing; and
a ball disposed within the housing and rotatable by the stem, wherein the ball has a hole therethrough to control fluid flow from the first port to the second port, wherein the hole has a profile comprising:
a first opening at a base of the hole,
a first channel connected to and extending from the first opening, wherein the first channel has a width that is less than a respective width of the first opening such that a neck portion is formed at a connection of the first channel with the first opening,
a second channel extending from the first channel and diverging by a particular angle, and
a second opening connected to the second channel, wherein the ball rotates by a rotational stroke that is greater than 90 degrees for the second opening to be fully exposed to fluid flow from the first port.