Patent ID: 9725113
Date: 2017-08-08
CPC Classifications: B62D

Claim:
1. A hydraulic steering system comprising a steering unit and a pressure source, said steering unit comprising a working port arrangement (L, R) having two working ports, a supply port arrangement having a high pressure port (P) and a low pressure port, a main flow path having a main bleed (A 1 ) and a metering device and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A 1 ) and said amplification bleed (Au) being controlled together by means of a steering handle and being closed in neutral position of said steering handle, and said pressure source having a variable displacement.