A fuel injection nozzle with which it is possible to control the nozzle hole area and the injection period so that the injection pressure, the injection period and the injection amount are suited to the load and the speed of the engine and with which it is possible to conduct a pilot injection and a...http://www.google.com/patents/US5975433?utm_source=gb-gplus-sharePatent US5975433 - Fuel injection nozzle with rotary valve
