A power steering system is provided with a communicating hole and yet ensures the strength of a housing. Space between the housing and a wheel turning shaft is divided into two. Space located on one axial side of the bearing supporting a nut and the plurality of balls disposed in the nut is a first chamber, and space located on the other side is a second chamber. The communicating hole allowing communication between the first and second chambers is formed in the nut to open in the nut-side ball screw groove, avoiding a region in which the balls circulate, or in a member disposed radially further outside than the nut and radially inside than the inner wall of the housing.
POWER STEERING SYSTEM
21.07.2016
Patent
Elektronische Ressource
Englisch
Hydraulic power steering system, vehicle and steering method of hydraulic power steering system
Europäisches Patentamt | 2015
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