A rotary distributor type fuel pumping apparatus for supplying fuel to an internal combustion engine has a radially disposed plunger located in a radial bore in the distributor member. The plunger is moved inwardly by a cam follower including a shoe engaging the plunger and a roller which engages cam...http://www.google.es/patents/US5178524?utm_source=gb-gplus-sharePatente US5178524 - Fuel injection pump
