Patent ID: 8013465

Claim:
An energy recovery system, comprising: a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitted by a gas flow channel of a gas flow source and wherein the conduit is configured to transmit the received gas flow from the first end thereof toward the second end thereof; a first blade assembly coupled to the conduit, wherein the first blade assembly is configured to be moved when the received gas flow is transmitted from the first end of the conduit; and an electrical generator coupled to the first blade assembly, wherein the electrical generator is configured to generate electricity when the first blade assembly moves, wherein a cross-sectional area which had been inadvertently stricken a portion of the conduit is less than a cross-sectional area of the gas flow channel so that a portion of the gas flow transmitted by the gas flow channel can bypass the blade assembly to limit back pressure on the gas flow source.