公开(公告)号：US11808452B2

公开(公告)日：2023-11-07

申请号：US16932142

申请日：2020-07-17

Applicant: James E. Pearson ,  Stephen Sapp ,  Tony Leeseberg ,  Brandon Cole ,  Moises Contreras Hernandez

Inventor： James E. Pearson ,  Stephen Sapp ,  Tony Leeseberg ,  Brandon Cole ,  Moises Contreras Hernandez

IPC: F23N1/00 ,  F23N5/20 ,  F23N5/24

CPC classification number: F23N1/00 ,  F23N5/20 ,  F23K2900/05001 ,  F23K2900/05002 ,  F23N5/242 ,  F23N2227/24 ,  F23N2227/30 ,  F23N2227/32 ,  F23N2235/14 ,  F23N2235/18 ,  F23N2235/20

Abstract: Provided are embodiments of a gas valve for an intermittent pilot ignition system. The gas valve includes features designed to address the buildup of negative pressure in a fuel line connected to the gas valve that could cause internal valve diaphragms to open, drawing fuel from the gas valve. In embodiments, the gas valve includes a system of check valves designed to seal off the gas valve when a negative pressure develops. In other embodiments, the gas valve includes a relief valve having a relief port so that air is able to enter the valve proximate to the inlet port so as to avoid building a negative pressure sufficient to open the diaphragms. In both cases, the valve remains primed with fuel for subsequent ignition. The gas valve is envisioned to be useful for a variety of pilot operated systems.

公开(公告)号：US20240110702A1

公开(公告)日：2024-04-04

申请号：US18538598

申请日：2023-12-13

Applicant: Cowles Operating Company

Inventor： Charles Feldman ,  John Dunleavey

IPC: F23N5/18 ,  F23C7/00 ,  F23D14/72 ,  F23N3/00 ,  F23N5/24

CPC classification number: F23N5/18 ,  F23C7/008 ,  F23D14/72 ,  F23N3/005 ,  F23N5/245 ,  F23D2209/00 ,  F23L1/00 ,  F23N2005/181 ,  F23N2225/06 ,  F23N2227/02 ,  F23N2227/32 ,  F23N2233/06 ,  F23N2235/02 ,  F23N2237/00

Abstract: A combustion air proving (CAP) system for a burner assembly having a burner for providing heated air to a location, a controller, and a back plate, where outside air is fed to the burner via a conduit. The CAP system is connected to an inlet of the system. An outlet of the system is connected to the burner via the back plate. A damper within the system is translatable between open and closed positions for allowing and blocking air flow, respectively. A sensor measures an air flow parameter of air flow to the burner. The sensor communicates with the controller, which shuts down the burner if the parameter measured by the sensor meets a predetermined threshold value. An assembly installer may test for proper sensor and controller functions by translating the damper to the closed position and blocking outside air flow.

公开(公告)号：US11879640B2

公开(公告)日：2024-01-23

申请号：US17872521

申请日：2022-07-25

Applicant: Cowles Operating Company

Inventor： Charles Feldman ,  John Dunleavey

IPC: F23N5/18 ,  F23N3/00 ,  F23N5/24 ,  F23C7/00 ,  F23D14/72 ,  F23L1/00

CPC classification number: F23N5/18 ,  F23C7/008 ,  F23D14/72 ,  F23N3/005 ,  F23N5/245 ,  F23D2209/00 ,  F23L1/00 ,  F23N2005/181 ,  F23N2225/06 ,  F23N2227/02 ,  F23N2227/32 ,  F23N2233/06 ,  F23N2235/02 ,  F23N2237/00

Abstract: A combustion air proving (CAP) system for a burner assembly having a burner for providing heated air to a location, a controller, and a back plate, where outside air is fed to the burner via a conduit. The CAP system is connected to an inlet of the system. An outlet of the system is connected to the burner via the back plate. A damper within the system is translatable between open and closed positions for allowing and blocking air flow, respectively. A sensor measures an air flow parameter of air flow to the burner. The sensor communicates with the controller, which shuts down the burner if the parameter measured by the sensor meets a predetermined threshold value. An assembly installer may test for proper sensor and controller functions by translating the damper to the closed position and blocking outside air flow.