Fuel Injector : 4,546,924

There are disclosed several embodiments of a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine in response to the pressure of the fuel. In each embodiment, a nozzle of the injector which extends into the combustion chamber is opened and closed by means of a valve member which is yieldably urged into tight engagement with a seat in the lower end of the nozzle and which is rotated in response to increasing and decreasing fuel pressure, respectively, to move the outlets in the valve member and nozzle into and out of register.