Abstract: An apparatus and process are described delivering alternating pulses of fluid and air within either a fully sealed or partially sealed tooling enclave in the direct presence of a constant or variable vacuum source for the purpose of removing loose as well as attached contamination from the part and it's associated internal passageways, as well as internal and external surface areas. The agitation of the debris is created by the displacement of the air or other gases, held under compression by the fluids when released to the vacuum source surrounding, affixed, or presented to the part/area to be cleaned. The fluid/air medium is generated in an alternating method by the use of a rotating pulse generator. The generator receives a constant or alternately a variable rate flow of fluid to be used in the application as well as a constant or alternately variable rate flow of compressed air.

Abstract: An apparatus and process are described delivering alternating pulses of fluid and air within either a fully sealed or partially sealed tooling enclave in the direct presence of a constant or variable vacuum source for the purpose of removing loose as well as attached contamination from the part and it's associated internal passageways, as well as internal and external surface areas. The agitation of the debris is created by the displacement of the air or other gases, held under compression by the fluids when released to the vacuum source surrounding, affixed, or presented to the part/area to be cleaned. The fluid/air medium is generated in an alternating method by the use of a rotating pulse generator. The generator receives a constant or alternately a variable rate flow of fluid to be used in the application as well as a constant or alternately variable rate flow of compressed air.