Patent Number: 6,637,468

Title: High speed engine coolant flush and filtration system and method

Abstract: A high-speed cleaning system and method in which a liquid is injected by-compressed air into the vacuumed chambers in the automotive cooling systems, in water-cooled engines. The liquid is injected in short period time under pressure, and the cooling system is pre-evacuated and held at a vacuum so that there is no flow restriction to build up high pressure in the cooling system in the short period of time the liquid is injected in the cooling system, and the liquid travels through the cooling system at a high rate of speed. High pressure air is mixed with the liquid before it is injected into engine cooling system, where the liquid/air mixture travels at a high rate of speed creating a hurricane type effect that breaking loose contaminants such as dirt, rust, and other particles and washes them out of the engine cooling system.

Inventors: Wu; Derek Chen-Chien (Hayward, CA)


International Classification: F01P 11/00 (20060101); F01P 11/06 (20060101); F02B 77/04 (20060101); B65B 031/00 (); B67C 003/00 ()

Expiration Date: 10/28/2011