Positive displacement pump comprises a bearing bush which supports the pump shaft, and is provided with a groove serving as a conduit for delivery of a cooling/lubricating medium into the shaft and bearing system

摘要

The positive displacement pump comprises a bearing bush (64) which supports the pump shaft, and is provided with a groove (58) serving as a conduit for a cooling/lubricating medium introduced by means of pressure medium into the sliding bearing and shaft system. Also claimed are such a bearing bush and a fuel injection system with a radial-piston positive displacement pump.