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What should be paid attention to when matching the appropriate flow and pressure of the Steering Pump components of Shertech Hydraulic Co., Ltd.

When selecting and matching the appropriate flow and pressure for the steering pump components of Shertech Hydraulic Co., Ltd., several important factors must be considered to ensure optimal performance, efficiency, and safety of the hydraulic steering system. Proper matching of flow and pressure is critical not only to the performance of the steering system but also to the durability of the components, energy efficiency, and overall vehicle operation.

The steering system’s flow requirement is determined by the volume of fluid needed to assist in the steering operation. The flow rate of the steering pump must match the demands of the steering gear and other hydraulic components. If the flow rate is too low, the steering may become slow or unresponsive. If the flow rate is too high, it may cause unnecessary wear on the components and lead to system overheating.
Flow rate (liters per minute, LPM) is typically determined based on factors such as the size and weight of the vehicle, the type of steering system (e.g., rack and pinion or recirculating ball), and the steering effort required at various speeds.

Pressure is crucial for the steering system to provide adequate assistance to the driver. It is influenced by the design of the steering gear and the type of steering assist system (hydraulic or electro-hydraulic). The correct pressure ensures that the steering system operates smoothly and with adequate responsiveness.This is usually set based on the specifications of the steering gear and actuator. Steering pumps typically operate at pressures between 70 to 150 bar, but this varies depending on the system’s design.

The steering pump must provide sufficient flow and pressure to meet the steering system's demands without overloading the components. This means that the flow rate of the pump should be proportional to the vehicle's steering requirements at various driving conditions, while the pressure must be sufficient to assist in turning the wheels without causing excessive strain on the system.

This is typically used for systems where steering assistance is needed at higher speeds but with less force (e.g., for light vehicles or passenger cars).This is usually seen in systems that need high steering force at low speeds, such as in heavy-duty vehicles or vehicles with large tires (e.g., trucks, buses, and construction machinery).

A pressure relief valve is used to prevent system overpressure. It ensures that the steering pump does not exceed the maximum pressure rating of the components. Matching the pump pressure to the valve's relief pressure is essential to avoid damage to sensitive components.

The pressure and flow must be compatible with the steering gear or hydraulic actuator used in the system. The steering gear must be able to handle the pressure from the pump while the flow rate should match the steering wheel's response time and effort.

These components are typically designed to operate within a certain pressure and flow range. If the steering pump provides too much flow or pressure, it could lead to over-stressing the hydraulic cylinders, potentially causing seal failure or excessive wear.

These valves regulate the flow and pressure of the fluid that enters the steering gear. The pump’s flow rate and pressure need to match the design parameters of these valves to prevent erratic steering or malfunction.

The flow rating of the steering pump must be selected based on the system’s peak demand. If the pump is oversized, it can result in excessive fluid flow, leading to heat buildup, noise, and reduced system life. On the other hand, undersized pumps may fail to provide enough fluid to properly assist in steering, resulting in heavy steering effort or erratic steering behavior.

For light vehicles, a lower flow pump (with higher pressure) may suffice, while for heavy-duty trucks or construction vehicles, a higher flow pump (with lower pressure) is often needed.

In certain systems, using a variable displacement pump can help optimize flow and pressure according to the steering requirements. This type of pump can adjust its displacement automatically based on the vehicle’s speed, load, and steering effort, improving efficiency and response.

Hydraulic fluid viscosity affects both flow and pressure in the system. If the fluid is too thick (high viscosity), it may create resistance that reduces flow and efficiency. Conversely, if the fluid is too thin (low viscosity), it may not generate sufficient pressure for effective steering.

Hydraulic fluid temperature can change with environmental conditions or excessive pump load. When fluid is too hot, its viscosity decreases, potentially causing a loss of pressure or erratic steering behavior. Conversely, when fluid is too cold, it becomes thicker and may impede flow. Properly matching the steering pump’s performance to the expected fluid temperature range is essential for maintaining smooth operation.

Matching the appropriate flow and pressure of the steering pump components of Shertech Hydraulic Co., Ltd. requires a comprehensive understanding of the vehicle’s steering system requirements, the compatibility of pump components, and the proper calibration of the pump for efficiency and durability. Careful attention to these factors ensures that the steering system operates smoothly, responds reliably, and maintains the durability of the components, providing the vehicle operator with safe and responsive handling at all times.