Lennox Industries Inc.

Shiblee S M Noman

John W Whitesitt

Jesse Sanchez

Ian Burmania

Shailesh S Manohar

One aspect of this disclosure provides a finger baffle for a heating furnace. This embodiment includes an elongated support plate having a length, and at least one finger baffle extending outwardly and in a vertically oriented direction from the elongated support plate. The at least one finger baffle has a width that extends along the length of the elongated support plate. The finger baffle may be employed in a high-efficiency gas furnace.

Finger air baffle for high efficiency furnace

One aspect of this disclosure provides a heating chamber for a gas furnace that comprises opposing halves joined together. The joined opposing halves form a clamshell panel having at least one truncated corner located adjacent a curve located at a back end of a chamber path of the one or more clamshell heating chambers.

Strain reduction clamshell heat exchanger design

A gravity-style furnace subunit for a gas-induced draft furnace. A heat conduction tube configured to be located inside of a gas-induced draft furnace cabinet, the heat conduction tube being separated from a row of draft-induced heat conduction tubes inside the cabinet. A burner assembly having a burner tube located within the heat conduction tube through an inlet opening of the heat conduction tube. The burner assembly permits air flow through the inlet opening into the heat conduction tube. A pilot assembly located within the heat conduction tube and adjacent to the burner tube. A thermopile module having located adjacent to a flame outlet of the pilot assembly within the heat conduction tube. A gas valve configured to control gas flow to the burner assembly, the gas valve electrically coupled to the thermopile module and to actuate gas flow there-through when the thermopile module generates a predefined voltage difference.

Gravity-style furnace subunit inside a gas-induced draft furnace

A control module for preventing acoustic resonance noise generation from a heat exchanger of a heating furnace, comprising a control signal generated by the control module. The control signal is configured to operate an induction fan of the heating furnace at more than one speed for a given heat demand mode of the heating furnace.

Combustion acoustic noise prevention in a heating furnace

A burner assembly for a fuel-fired heating furnace. The assembly comprises a burner body having an inlet opening to receive fuel delivered by a fuel control module, and, to receive an ambient source of primary air there-through. The furnace also comprises one or more burner heads connected to a common outlet opening of the burner body to receive a mixture of the fuel and the primary air.

Burner assembly for a heating furnace

One aspect of this disclosure provides a zoning baffle for a gas furnace. This embodiment comprises a housing, a primary heating zone located in the housing and comprising one or more heating chambers. A blower having an exhaust opening is located adjacent the primary heating zone and is positioned to force air through the primary heating zone. A zoning baffle is located between the blower and the primary heating zone. The zoning baffle comprises spaced apart baffles oriented substantially parallel with the one or more heating chambers. A method of manufacturing a gas furnace is also provided.

Velocity zoning heat exchanger air baffle

A nitrogen oxide reduction baffle for a heat exchanger of a furnace and a gas furnace incorporating at least one such baffle. In one embodiment, the baffle includes: (1) a body having a predetermined length, cross-sectional configuration and longitudinal slot, the longitudinal slot having a predetermined width and position and (2) a locating structure coupled to the body and configured to place the body in a predetermined longitudinal location within a heat exchanger and orient the slot relative to the heat exchanger, the body laterally constrained within the heat exchanger when the body is located at the predetermined longitudinal location.

Self-locating nitrogen oxide reduction baffle for furnace and gas furnace incorporating the same

An air-channeling baffle for a heat exchanger unit. The air-channeling baffle comprises a body having a long dimension and a short dimension that define a surface and an attachment structure coupled to the body. The attachment structure is configured to locate the body in a heat exchanger unit such that an incoming air flow reflected off of the surface and passes over ends of the long dimension towards terminally-located heat conduction tubes of the heat exchanger unit.

Growing community of inventors

Carrollton, TX, United States of America

Shiblee S M Noman