Patent ID: 11881204
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Other consumer goods (Other fields)
Classification: CPC G  B | IPC B  G

Claim 7:
8. A dual scroll assembly for a vehicle, comprising:
a nozzle having a first portion that has a first diameter and a second portion that has a second diameter, wherein the first diameter and the second diameter are different sizes;
a first scroll channel configured to receive air from the first portion of the nozzle, wherein the air traveling through the first scroll channel produces a first tone at a first frequency;
a second scroll channel configured to receive air from the second portion of the nozzle, wherein the air traveling through the second scroll channel produces a second tone at a second frequency, wherein the first tone and the second tone produce a dyad; and
a membrane for driving the air to the nozzle, the first scroll channel, and the second scroll channel,
wherein the membrane, the first portion, and the second portion are vertically aligned, and wherein the air travels through the first portion before entering the second portion.