제품 세부 사항
합리적인 가격의 파워 스티어링 펌프
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Product Attributes
Model No.:FZB12E8G5A
Brand:FZB
Place Of Origin:ChinaPackaging & Delivery
Selling Units:Piece/Pieces
Package Type:PAPER BOX, PALLETProduct Description
How does a Power Steering Pump work?
Generally, vane pump is composed of a pump body with double arc curves in the inner chamber, a slotted rotor, vanes and other parts. Some are installed on the flywheel housing at the rear end of the engine, and are also driven by timing gears. When the engine is running, the booster pump rotor is driven to rotate, and the vanes move outward along the blade grooves under the action of centrifugal force, and are close to the inner wall of the pump body. During the rotation of the rotor, due to the continuous increase and decrease of the closed volume between the vanes , to realize the process of oil absorption and oil pressure. Every time the rotor rotates once, it completes oil absorption and oil pressure twice. There is also a safety valve in the pump body to limit the maximum pressure. When the external load of the Steering System increases, causing the oil pressure to rise to a certain value, the safety valve opens to unload the load. A throttle valve and a flow control valve are also installed in the pump body to ensure that the displacement of the booster pump is basically stable.
Critical parametersPart Name Hydraulic Power Steering Pump Function Provide hydraulic fluid to steering gear Type Vane pump DARE PN FZB12E8G5A REF. PN OEM PN 542003210 Application Nom. Displacement 15 ml/r Max. Pressure 100 bar Speed Range 500-3200 rpm Flow Rate 18 L/min Inlet Port M26X1.5-6H Outlet Port M16X1.5-6H Direction of Rotation Right Constant flow hydraulic power steering system
(1) Structure
·Mainly composed of steering oil tank, steering oil pump, safety valve, flow control valve, one-way valve, steering control valve, mechanical steering gear, and steering pressure cylinder
1) Steering control valve: there are two types: slide valve type and rotary valve type
·Spool valve type: Steering control valve whose valve body moves axially to control oil flow
·Rotary valve type: The valve body rotates around its center to control the oil flow steering control valve
2) The safety valve limits the maximum pressure output from the oil pump
3) Flow control valve: used to limit the maximum flow of the steering oil pump. The flow control valve and safety valve are generally made inside the oil pump
4) One-way valve: closed when the booster device is normal. When the booster device fails, it opens to allow the oil in the oil tank to flow into the oil suction side of the power chamber, also known as a short circuit valve
(2) Working process
·Steering control valve is often in the open position
·The working chambers at both ends of the piston of the steering power cylinder are connected to the low-pressure oil return pipe and do not work. The oil output from the Steering Pump flows into the steering control valve and then flows back to the steering oil tank. The return resistance is very small, so the output pressure of the oil pump is very low and it is in an idle state
·When the driver rotates the steering wheel, the mechanical steering gear places the steering control valve in the working position. The corresponding working chamber of the steering power cylinder is isolated from the oil return circuit, and is then connected to the oil pump output pipeline. The other side of the power chamber is still connected to the oil return pipeline
·The steering resistance is greater than the oil pipe pressure, and the oil pressure output by the oil pump rapidly increases until the steering power cylinder piston is pushed
·The steering wheel stops rotating and the steering control valve immediately returns to the neutral position
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