The Carter System-A New Approach for a Steam Powered Automobile

A steam powered Volkswagen has been tested by the Environmental Protection Agency and meets the strict 1977 emission levels without the use of add-on emission control devices. The steam system is unusual in its use of high pressure (up to 2500 psi), high temperature steam (1100°F) in conjunction with a high speed reciprocating expander (up to 6000 rpm), constant expansion ratio, variable pressure boiler, and a conventional automotive transmission to achieve an extremely compact design of high thermal efficiency.