Heater for pre-heating fuel with a heated liquid

摘要

A pre-heater for fuel includes a corrugated tubing for passing hot water therethrough. An outer cylinder forms a jacket around said corrugated tubing to form a chamber to receive therethrough the fuel to be heated. The heat from the hot water is transmitted through the corrugated tubing to heat the fuel. Welding of the ends of corrugated tubing and the outer cylinder to end enclosures provide effective sealing among the parts.