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US 9,441,833 B2Granted
Heating assembly
OwnerDavid Denginventor
Life of this patent
Estimating the term…
Abstract
A heating assembly can be used in a dual fuel heater to mix air with fuel to be combusted at the burner. The heating assembly can include a burner, a first nozzle, a second nozzle, a first conduit and a second conduit. The first conduit can have an opening configured to allow air to mix with fuel injected into the first conduit by the first nozzle.
Claims12
A heater assembly configured to produce a yellow flame, the heater assembly comprising:
- a burner;
- a first nozzle;
- a second nozzle;
- a first conduit positioned between the first nozzle and the burner, the first conduit comprising an opening configured to allow air to mix with fuel injected into the first conduit by the first nozzle;
- and
- a second conduit positioned between the second nozzle and the burner;
- wherein the first nozzle is configured to inject fuel into the first conduit near the opening and at a location separate and spaced apart from where the second nozzle is configured to inject fuel into the second conduit and wherein the fuel injected into the second nozzle does not pass through the first nozzle.
4 more elements
A heating apparatus comprising:
- a first fuel input for receiving fuel from a first fuel source;
- a second fuel input for receiving fuel from a second fuel source;
- a first fuel outlet path;
- a second fuel outlet path;
- a valve body configured to selectively permit fluid communication between the first fuel input and the first fuel output path and/or between the second fuel input and the second fuel outlet path;
- and
- a transition housing defining a first inlet, a second inlet and an egress, said first inlet communicating with a mixing chamber positioned to receive fuel from the first fuel outlet path and defining one or more openings through which air can pass in response to fuel flow through said mixing chamber to mix with fuel received from the first outlet path and exit through said egress, said second inlet positioned to receive fuel from the second outlet path and defining a second chamber configured to receive fuel from said second outlet path and exit through said egress without flowing across said one or more openings;
- and
- a burner in fluid communication with said egress.
6 more elements
Dependencies are inferred from the claim text.