Modulating burner with venturi damper

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United States of America Patent

PATENT NO 9746176
SERIAL NO

14295409

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Importance

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Abstract

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A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.

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Patent Owner(s)

Patent OwnerAddress
LOCHINVAR LLC300 MADDOX SIMPSON PARKWAY LEBANON TN 37090

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baese, Dave C Brentwood, US 2 5
Doura, Mohamed Mehdi Mt. Juliet, US 5 5
Putnam, Benjamin P Watertown, US 3 7
Wiseman, Robert Wesley Brentwood, US 2 5

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