Patent ID: 6161770
Filing Date: 2000-12-19
Classification: F02M

Abstract:
A fuel injector, comprising:a valve body having a fuel chamber that is in a first fluid communication with at least one nozzle opening;an intensifier in a second fluid communication with a source of a control fluid, said intensifier moving within said valve body between a first position and a second position when said control fluid is directed to said intensifier, said intensifier operable to pressurize fuel within said fuel chamber when moved from its first position to its second position; and,an hydraulically controlled check valve in a third fluid communication with the source of control fluid, said check valve movable within said valve body between an open position and a closed position, said check valve operable to allow the fuel to flow from said fuel chamber through said nozzle opening when in said open position and to close said nozzle opening when in said closed position.