DURCHFLUSSSTEUERVORRICHTUNG FÜR SERVOLENKUNG

• Main Authors: YUN, SO-NAM, MUN, SEONG-DAE, KIM, HYONG-EUI
• Format: Patent
• Language: German
• Published: 15.06.1999
• Edition: 6
• Subjects: BLASTING; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; TRAILERS; TRANSPORTING; WEAPONS

A mechanism for a power steering device of automobile is disclosed. Particularly, a flow control mechanism for power steering is disclosed in which there is formed a combination consisting of: a valve for controlling the amount of the hydraulic fluid to be supplied to the power steering device by a pump (which is driven by the engine); and a valve installed for protecting the hydraulic circuit and a stable operation of the pump. The flow control mechanism for a power steering, includes a valve directly connected to a pressure port (1) of said pump; a cylindrical spool hole (18) formed within an inlet port of said valve and within a valve housing; a main spool (6) inserted into said spool hole (18); a sub-spool (5) inserted into said main spool (6); and orifices (3) formed in said sub-spool (5); whereby the required amount of the hydraulic fluid is sent to a power steering device through a combined action of said main spool (6) and said sub-spool (5), and the surplus flow amount over the required flow amount is bypassed by pressure differences formed between the front and rear of said orifices of said sub-spool (5) so as to obtain a stabilized steering.