Patent ID: 9673681
Date: 2017-06-06
CPC Classifications: A01G,F03B,H02K,Y02E,Y02P

Claim:
1. A density engine comprising: a chamber containing a host liquid having a first density; an object movably positioned in the host liquid and having a second density less than the first density such that the object is buoyant in the host liquid; an injector that intermittently injects bursts of a gas into the chamber below the object, each burst of the gas thereby creating a respective rising fluid region including a portion of the gas and a portion of the host liquid, each rising fluid region having a density that is less than the second density such that the object is not buoyant in said each rising fluid region, wherein said each rising fluid region intermittently passes the object thereby causing oscillatory motion of the object; and an electrical generator coupled to the object, and upon the oscillatory motion of the object as said rising fluid region intermittently passes the object, the electrical generator generates electricity.