Radial piston pump for high pressure fuel supply in motor vehicles

摘要

The device has a back pressure valve (68) on the high pressure side. Except for a valve body (78) engaging on a sealing seat (76), the valve is a preassembled modular unit (88), fitted into an installation aperture (74). It is tensioned against a pump component (16) to form a high pressure seal. The modular unit has a closure element (90) with an outer thread (92) screwed into an inner thread (86) of the installation aperture.