US 12,297,819 B2
Pulsation damper
Christopher John Gee, Berkshire (GB); Chris Alexis Forshaw, East Sussex (GB); and Gary Paul Haffenden, East Sussex (GB)
Assigned to Aspen Pumps Ltd, Hailsham East Sussex (GB)
Appl. No. 17/783,813
Filed by Aspen Pumps Ltd, Hailsham (GB)
PCT Filed Sep. 10, 2020, PCT No. PCT/GB2020/052170
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/116644, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1917990 (GB), filed on Dec. 9, 2019.
Prior Publication US 2023/0009988 A1, Jan. 12, 2023
Int. Cl. F04B 11/00 (2006.01); F04B 39/00 (2006.01); F04B 53/00 (2006.01); F16L 55/052 (2006.01)
CPC F04B 11/0025 (2013.01) [F04B 11/0091 (2013.01); F04B 39/0027 (2013.01); F04B 53/001 (2013.01); F16L 55/052 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pulsation damper for a condensate pump comprising:
a body having a fluid inlet, a fluid outlet, and inner and outer wall portions, wherein the inner and outer wall portions define an inner fluid region and an outer fluid region, wherein the outer fluid region is sub-divided into outer fluid volumes by wall connecting members that extend between the inner and outer wall portions, wherein the inner fluid region is in fluid communication with the outer fluid region, wherein a fluid flow path is formed from the fluid inlet to the fluid outlet via the inner fluid region, wherein the outer fluid region is in fluid communication with an air inlet and configured to maintain an air pocket, and wherein the air pocket is configured to dissipate pulsations within liquid entering the fluid inlet prior to liquid being discharged from the fluid outlet.