Pump for power steering in motor vehicle, has main and electrically adjustable flow control throttles in parallel

摘要

The pump for power steering in motor vehicle has a feed regulation valve with hydraulic resistance formed by a main throttle (9) and a regulating piston (13). The main throttle has a regulating pin and an annular diaphragm. There is a secondary electrically adjustable throttle (17) parallel to the main throttle and operated by the same pressure differential as the main throttle.