Device for canceling acoustic noise generated by a pump
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsTaehwa Lee, Xiaopeng Li, Ryohei Tsuruta, Michael Paul Rowe, Danil V. Prokhorov
Life of this patent
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Abstract
A device for canceling acoustic noise generated includes, in one example, an inlet channel configured to be fluidly connected to an inlet port of a pump and an outlet channel configured to be fluidly connected to an outlet port of the pump. The device also includes an inlet resonator and an outlet resonator, both having open ends and closed ends. The open ends of the inlet and outlet resonators are fluidly connected to the inlet and outlet channels, respectively. When in operation, the inlet and outlet resonators can cancel noise generated by the operation of the pump.
Claims15
A device comprising:
- a pump having an inlet port and an outlet port, wherein the pump is configured to draw liquid from the inlet port and discharge the liquid from the outlet port;
- an inlet channel connected to the inlet port and having an inlet resonator that includes an open end and a closed end;
- an outlet channel connected to the outlet port and having an outlet resonator that includes an open end and a closed end;
- a housing, wherein the pump, the inlet resonator, and the outlet resonator are located within an inside space defined by the housing;
- and
- a housing resonator having an open end and a closed end, the housing resonator being disposed within the inside space defined by the housing, wherein the housing resonator is not fluidly connected to the inlet resonator or the outlet resonator, the housing resonator having a resonant frequency substantially equal to a frequency of a sound emitted by a vibration of a casing of the pump caused by the operation of the pump.
A system comprising:
- an inlet channel configured to be connected to an inlet port of a pump, the inlet channel having an inlet resonator with an open end and a closed end;
- an outlet channel configured to be connected to an outlet port of the pump, the outlet channel having an outlet resonator with an open end and a closed end;
- wherein the pump is configured to pump liquid from the inlet port to the outlet port;
- a housing, wherein the inlet resonator and the outlet resonator are located within an inside space defined by the housing;
- a housing resonator having an open end and a closed end, the housing resonator being disposed within the inside space defined by the housing, wherein the housing resonator is not fluidly connected to the inlet resonator or the outlet resonator;
- and
- the housing resonator having a resonant frequency substantially equal to a frequency of a sound emitted by a vibration of a casing of the pump caused by the operation of the pump.
Dependencies are inferred from the claim text.