Two phase nozzle cooling system
AssigneeAllis-Chalmers Corporation
InventorAlexander Dreisin
Life of this patent
Estimating the term…
Abstract
A two phase fuel injection nozzle cooling system having a hydraulically cooled heat pipe. The heat pipe contains a hermetically sealed cooling medium which has a boiling point corresponding to the upper range of acceptable nozzle operating temperatures to transfer heat from the nozzle tip to the circulating hydraulic fluid which operates as a heat sink.
Claims11
A two phase fuel injection nozzle cooling system comprising, an engine forming a combustion chamber, a nozzle including, a nozzle body mounted on said engine, a differential valve mounted on said nozzle body for injecting fuel in said combustion chamber, fuel inlet passage means in said nozzle body connected to said differential valve, said nozzle body defining cooling fluid passages, at least one heat pipe defining a cooling medium passage, means defining cooling medium passages surrounding the differential valve in communication with said cooling medium passage in said heat pipe adapted for receiving a cooling medium having a boiling point in the range of acceptable operating temperatures of the fuel injection nozzle, a hydraulic cooling fluid system including said cooling fluid passages in said nozzle body and surrounding a portion of said heat pipe for operating as a heat sink, means for circulating cooling fluid through said hydraulic system to thereby provide cooling of said nozzle.
Dependencies are inferred from the claim text.