Transport refrigeration unit exhaust system management for low noise emissions
AssigneeCarrier Corporation
InventorLoic Renault
Life of this patent
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Abstract
A transport refrigeration unit (TRU) is provided and includes a power generation unit, a catalytic element, an exhaust pipe, first and second tubular elements fluidly interposed between the power generation unit and the catalytic element and between the catalytic element and the exhaust pipe, respectively, at least one of first and second throttle valves and a control system. The at least one of first and second throttle valves are operably disposed to control fluid flows in the first and second tubular elements, respectively. The control system is configured to control the power generation unit and the at least one of the first and second throttle valves to effect the sound produced by the TRU.
Claims20
A transport refrigeration unit (TRU), comprising:
- a power generation unit;
- a catalytic element;
- an exhaust pipe;
- first and second tubular elements fluidly interposed between the power generation unit and the catalytic element and between the catalytic element and the exhaust pipe, respectively;
- at least one of first and second throttle valves operably disposed to control fluid flows in the first and second tubular elements, respectively;
- and
- a control system configured to control the power generation unit and the at least one of the first and second throttle valves to effect the sound produced by the TRU.
A transport refrigeration unit (TRU), comprising:
- a power generation unit;
- a catalytic element;
- an exhaust pipe;
- first and second tubular elements fluidly interposed between the power generation unit and the catalytic element and between the catalytic element and the exhaust pipe, respectively;
- first and second throttle valves operably disposed to control fluid flows in the first and second tubular elements, respectively;
- and
- a control system configured to control the power generation unit and the first and second throttle valves to effect the sound produced by the TRU.
A method of operating a transport refrigeration unit (TRU), the method comprising:
- flowing products of combustion between a power generation unit and a catalytic element and then between the catalytic element and an exhaust pipe;
- and
- controlling an rpm of the power generation unit and opening and closing states of first and second throttle valves installed between the power generation unit and the catalytic element and between the catalytic element and the exhaust pipe.
Dependencies are inferred from the claim text.