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US 9,404,417 B2Granted
Noise attenuation compartment with heat exchanger arrangements for engines driving a load
AssigneeCummins Power Generation Inc.
InventorsDaniel Norrick, Madhukar Mahishi
Life of this patent
Estimating the term…
Abstract
Systems, methods and apparatus for noise attenuation of a generator set are disclosed. The generator set includes an internal combustion engine enclosed within a compartment that substantially isolates the internal combustion from ambient air and a load connected to the internal combustion engine. A heat exchanger is disposed within or coupled to the compartment and is operable to cool air in the compartment without directly exchanging ambient air with compartment air.
Claims23
An apparatus, comprising:
- an internal combustion engine that is liquid cooled with a cooling liquid, the internal combustion engine being enclosed within a compartment configured to fluidly isolate ambient air thereby reducing direct compartment air to ambient air exchange, wherein an air intake of the internal combustion engine and an exhaust outlet of the internal combustion engine extend through the compartment for fluid communication with the ambient air external to the compartment;
- a radiator located external to the compartment, wherein the cooling liquid of the internal combustion engine is coupled through the compartment by plumbing extending through the compartment for circulation of cooling liquid therebetween, where the radiator is operable to exchange engine heat from the cooling liquid of the internal combustion engine to ambient air from outside the compartment;
- a load, disposed outside of the compartment, mechanically coupled to the internal combustion engine;
- and
- a heat exchanger, wherein the heat exchanger is operable to exchange heat from air in the compartment to a cooling fluid, wherein the cooling fluid is isolated from the air in the compartment.
2 more elements
A system, comprising:
- an internal combustion engine that is liquid cooled with a cooling liquid and a generator operably coupled to the internal combustion engine;
- a compartment enclosing the internal combustion engine, the compartment configured to fluidly isolate ambient air thereby reducing direct compartment air to ambient air exchange with the generator disposed outside the compartment;
- a radiator, disposed outside the compartment, that is in fluid communication with the cooling liquid of the internal combustion engine;
- wherein the internal combustion engine includes an air intake and an exhaust outlet extending through the compartment, the air intake and exhaust outlet being in fluid communication with ambient air outside of the compartment;
- and a heat exchanger system, wherein the heat exchanger system exchanges heat from air in the compartment to ambient air outside the compartment utilizing a cooling fluid passing through the heat exchanger system without exchanging air in the compartment with ambient air outside of the compartment.
2 more elements
A method, comprising:
- positioning a liquid cooled internal combustion engine within a compartment configured to fluidly isolate ambient air thereby reducing direct compartment air to ambient air exchange and a radiator outside of the compartment, the radiator being in fluid communication with the cooling liquid of the internal combustion engine, the internal combustion engine being mechanically coupled to a load disposed outside of the compartment;
- operating the liquid cooled internal combustion engine;
- mechanically transferring power from the internal combustion engine to the load to power the load;
- cooling air in the compartment with a heat exchanger located in the compartment, wherein the heat exchanger exchanges heat from air in the compartment with a cooling fluid passing through the heat exchanger without exchanging air in the compartment with ambient air;
- and
- directing an exhaust flow from the internal combustion engine through a diffuser outside of the compartment that is arranged over an exhaust outlet of the internal combustion engine and also arranged over an outlet for the cooling fluid of the heat exchanger, wherein the exhaust flow from the internal combustion engine educts a flow of cooling fluid from the heat exchanger through the diffuser into ambient air.
3 more elements
Dependencies are inferred from the claim text.