Patent ID: 7721679
Filing Date: 2010-05-25
Classification: F22B,Y02P

Abstract:
1. A vapor generator comprising: a combustion chamber having a first end and a second end, located opposite the first end; means for initiating combustion at the first end of the combustion chamber; an outer structure surrounding the combustion chamber, wherein a cavity is located between the combustion chamber and the outer structure; a water inlet located at the outer structure adjacent to the first end of the combustion chamber, wherein the water inlet is configured to receive water into the cavity; a water outlet located at the outer structure adjacent to the second end of the combustion chamber, wherein the water outlet is configured to receive water from the cavity; a water injection element configured to introduce water into the combustion chamber at a location adjacent to the first end of the combustion chamber; and a water conduit coupling the water outlet to the water injection element, wherein the water conduit is configured to transfer water from the cavity to the water injector element.