Autogenous flame spraying apparatus for the flame spraying of powder-form materials or spray powder

An autogenous flame spraying apparatus, comprising:

• a supply line housing having a combustion gas supply line, a carrier gas supply line and an acceleration gas supply line;
• a main housing connected to said supply line housing and having a spray powder supply line and ducts communicating with said combustion gas supply line, said carrier gas supply line and said acceleration gas supply line, said housing having a first injector, communication with said spray powder supply line and said carrier gas supply line, for mixing said spray powder and a portion of said carrier gas to form a first mixture;
• an interchangeable nozzle carrier for carrying a releasable torch nozzle, said nozzle carrier being releasably attached to said main housing and having a second injector, communicating with said combustion gas supply line and said carrier gas supply line, for mixing said combustion gas and a remainder of said carrier gas to form a second mixture, said nozzle carrier also having ducts for conveying said first mixture and said second mixture to said torch nozzle, whereby said nozzle carrier can be replaced so as to alter both flame power and feed of spray powder.