Hydraulic Motor Pressure-Reducing Adapter for Torque Limiting
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Solution Overview
Problem
Hydraulic motors lack an effective mechanism for adjusting mechanical torque limits, which can lead to component damage and inefficient operation under varying system parameters.
Innovation Solution
A hydraulic motor apparatus with an end cap and adapter that includes a pressure reducing valve (PRV) and filter, allowing for adjustable mechanical torque by controlling hydraulic fluid pressure, and a method for installing a combined insert and bushing for the motor swash thrust bearing to ensure proper orientation and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic motor operates without adjustable torque limit mechanism, then motor can deliver full mechanical torque, but component damage risk increases and operation efficiency decreases under varying system parameters
Solution Approach 1:
The patent applies parameter changes by using a pressure reducing valve to control the hydraulic fluid pressure parameter. By adjusting the pressure parameter, the motor's mechanical torque output is regulated, preventing excessive torque that could damage components while maintaining operational efficiency under varying system conditions.
Solution Approach 2:
The pressure reducing valve acts as an intermediary component between the hydraulic fluid supply and the motor. It mediates the torque delivery by controlling fluid pressure, protecting the motor from direct exposure to unregulated high pressure and torque fluctuations.
2Adaptability or versatility
If pressure reducing valve and filter are integrated in adapter, then system flexibility and performance improve, but adapter complexity increases
Solution Approach 1:
The patent merges the pressure reducing valve and filter into the adapter assembly. This combination integrates multiple functions (pressure control, filtration, and fluid distribution) into a single component, improving system flexibility and performance while the modular adapter design manages the inherent complexity.
Solution Approach 2:
The adapter is designed as a multi-functional component that simultaneously serves as a fluid distribution manifold, houses a pressure reducing valve for torque control, and incorporates a filter for fluid purification. This universality enhances system adaptability without requiring separate components for each function.
3Stability of the object's composition
If combined insert and bushing is used for thrust bearing, then component retention and orientation are improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines the insert and bushing into a single integrated component for the thrust bearing assembly. This merger ensures proper orientation and retention of the thrust bearing by eliminating separate installation steps, improving assembly stability while the integrated design simplifies the manufacturing process by reducing the number of parts to manage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables flexible and controlled operation of hydraulic motors by setting a maximum allowable system pressure, protecting components and optimizing performance based on system parameters, thereby enhancing reliability and efficiency.
Implementation Method 1
A hydraulic motor apparatus with an end cap and adapter that includes a pressure reducing valve (PRV) and filter, allowing for adjustable mechanical torque by controlling hydraulic fluid pressure
Implementation Method 2
A filter and valve may be located in the adapter to improve flexibility and performance
Data Source
AI summary
A hydraulic motor apparatus includes a motor housing engaged to an end cap having a first porting system and an adapter connected to an external surface of the end cap and having a second porting system. A filter may be attached to the adapter and connected to the second porting system and a pressure reducing valve in the adapter is connected to the second porting system. The assembly may also include a controller operatively connected to the pressure reducing valve and system sensors measuring parameters affected by the output of the hydraulic motor apparatus, whereby the pressure reducing valve is operatively controlled by the controller in response to input from the system sensors.